/* ===================================
   CSS Reset & Base Styles
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Modern Dark Theme Colors */
    --color-bg-primary: #0d1117;
    --color-bg-secondary: #161b22;
    --color-bg-tertiary: #1c2128;
    --color-bg-elevated: #21262d;
    --color-bg-overlay: rgba(22, 27, 34, 0.8);

    --color-text-primary: #e6edf3;
    --color-text-secondary: #9198a1;
    --color-text-tertiary: #6e7681;
    --color-text-link: #58a6ff;
    --color-text-link-hover: #79c0ff;

    --color-border-default: #30363d;
    --color-border-muted: #21262d;
    --color-border-subtle: #1c2128;

    --color-accent-primary: #58a6ff;
    --color-accent-secondary: #a371f7;
    --color-accent-tertiary: #f78166;
    --color-accent-emphasis: #1f6feb;
    --color-accent-subtle: rgba(88, 166, 255, 0.1);

    --color-success: #3fb950;
    --color-success-bg: rgba(63, 185, 80, 0.15);
    --color-warning: #d29922;
    --color-warning-bg: rgba(210, 153, 34, 0.15);
    --color-danger: #f85149;
    --color-danger-bg: rgba(248, 81, 73, 0.15);

    --color-shadow: rgba(0, 0, 0, 0.3);
    --color-shadow-medium: rgba(0, 0, 0, 0.4);
    --color-shadow-large: rgba(0, 0, 0, 0.5);

    /* Vibrant accent colors for elements to "pop" */
    --color-neon-blue: #00d9ff;
    --color-neon-purple: #b794f6;
    --color-neon-pink: #ff6bcb;
    --color-neon-green: #00ff9f;
    --color-neon-orange: #ff9770;

    /* Subtle blue accents for contrast */
    --color-blue-subtle: rgba(0, 123, 255, 0.08);
    --color-blue-muted: rgba(0, 149, 255, 0.15);
    --color-blue-accent: #0095ff;
    --color-blue-glow: rgba(0, 149, 255, 0.2);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'Roboto Mono', 'SF Mono', Consolas, 'Liberation Mono', Menlo, monospace;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Container */
    --container-max-width: 1200px;
    --container-padding: 1.5rem;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===================================
   Typography
   =================================== */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.25;
    font-weight: 600;
    color: var(--color-text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-text-link);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-text-link-hover);
}

/* ===================================
   Utility Classes
   =================================== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-neon-blue), var(--color-neon-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-neon-blue), var(--color-neon-purple));
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-2xl);
}

.subsection-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    color: var(--color-text-primary);
    position: relative;
    padding-left: var(--spacing-md);
}

.subsection-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 60%;
    background: linear-gradient(to bottom, var(--color-blue-accent), transparent);
    border-radius: 2px;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    font-family: var(--font-primary);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-neon-blue), var(--color-neon-purple));
    color: white;
    border: none;
    box-shadow: 0 4px 15px rgba(88, 166, 255, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    box-shadow: 0 6px 25px rgba(88, 166, 255, 0.6);
    transform: translateY(-2px);
    color: white;
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-neon-blue);
    border: 2px solid var(--color-neon-blue);
    box-shadow: 0 0 10px rgba(88, 166, 255, 0.2);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.1), rgba(163, 113, 247, 0.1));
    border-color: var(--color-neon-purple);
    box-shadow: 0 0 20px rgba(88, 166, 255, 0.4);
    color: var(--color-neon-purple);
    transform: translateY(-2px);
}

/* ===================================
   Navigation
   =================================== */
.nav {
    position: sticky;
    top: 0;
    background-color: rgba(13, 17, 23, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-default);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav.nav-hidden {
    transform: translateY(-100%);
    opacity: 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand a {
    font-size: 1.25rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--color-text-primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-primary);
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-text-link);
}

/* Dropdown Menu */
.nav-dropdown {
    position: relative;
}

.dropdown-arrow {
    display: inline-block;
    margin-left: 0.25rem;
    transition: transform var(--transition-fast);
    vertical-align: middle;
}

.nav-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-content {
    display: none;
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    min-width: 180px;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-sm);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    z-index: 1000;
    overflow: hidden;
    padding-top: 0.5rem;
    margin-top: -0.5rem;
}

.nav-dropdown:hover .dropdown-content,
.dropdown-content:hover {
    display: block;
}

.dropdown-link {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--color-text-primary);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    border-bottom: 1px solid var(--color-border-default);
}

.dropdown-link:last-child {
    border-bottom: none;
}

.dropdown-link:hover {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-link);
    padding-left: 1.25rem;
}

.btn-resume {
    padding: 0.5rem 1rem;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-sm);
}

.btn-resume:hover {
    background-color: var(--color-bg-tertiary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

/* ===================================
   Notification Bell & Panel
   =================================== */

.nav-notification-bell {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: none;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
    flex-shrink: 0;
}

.nav-notification-bell:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-tertiary);
    border-color: var(--color-border-default);
}

.nav-notification-bell:hover svg {
    animation: bell-ring 0.4s ease;
}

@keyframes bell-ring {
    0%   { transform: rotate(0deg); }
    20%  { transform: rotate(12deg); }
    40%  { transform: rotate(-10deg); }
    60%  { transform: rotate(8deg); }
    80%  { transform: rotate(-5deg); }
    100% { transform: rotate(0deg); }
}

.notification-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 16px;
    height: 16px;
    padding: 0 3px;
    background: var(--color-danger);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 700;
    border-radius: 8px;
    line-height: 1;
    animation: badge-pulse 2s ease-in-out infinite;
}

@keyframes badge-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(248, 81, 73, 0.5); }
    50%       { box-shadow: 0 0 0 4px rgba(248, 81, 73, 0); }
}

/* Panel */
.notification-panel {
    position: fixed;
    top: 72px;
    right: 1.5rem;
    width: 380px;
    max-height: calc(100vh - 96px);
    display: flex;
    flex-direction: column;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45), 0 2px 8px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    overflow: hidden;
    z-index: 1100;
    opacity: 0;
    transform: translateY(-8px) scale(0.97);
    pointer-events: none;
    transition: opacity 200ms ease, transform 200ms ease;
}

.notification-panel.is-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

/* Panel header */
.notification-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-border-default);
    flex-shrink: 0;
}

.notification-panel-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
}

.notification-panel-unread-count {
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 0.125rem 0.5rem;
    background: var(--color-danger-bg);
    color: var(--color-danger);
    border: 1px solid rgba(248, 81, 73, 0.3);
    border-radius: 20px;
}

.notification-close-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: none;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
    flex-shrink: 0;
}

.notification-close-btn:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-tertiary);
    border-color: var(--color-border-default);
}

/* Panel body */
.notification-panel-body {
    overflow-y: auto;
    flex: 1;
}

.notification-panel-body::-webkit-scrollbar {
    width: 4px;
}

.notification-panel-body::-webkit-scrollbar-track {
    background: transparent;
}

.notification-panel-body::-webkit-scrollbar-thumb {
    background: var(--color-border-default);
    border-radius: 4px;
}

/* Notification items */
.notification-item {
    display: flex;
    gap: 0.875rem;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-border-muted);
    transition: background var(--transition-fast);
}

.notification-item:last-child {
    border-bottom: none;
}

.notification-item:hover {
    background: var(--color-bg-tertiary);
}

.notification-item.is-unread {
    background: rgba(88, 166, 255, 0.04);
}

.notification-item-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
    line-height: 1.4;
}

.notification-item-body {
    flex: 1;
    min-width: 0;
}

.notification-item-header {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.375rem;
}

.notification-item-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-primary);
    line-height: 1.4;
    flex: 1;
}

.notification-unread-dot {
    width: 7px;
    height: 7px;
    background: var(--color-accent-primary);
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 5px;
}

.notification-item-message {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    line-height: 1.55;
    margin-bottom: 0.625rem;
}

.notification-item-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.notification-item-date {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

.notification-link {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-link);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.notification-link:hover {
    color: var(--color-text-link-hover);
    text-decoration: underline;
}

.notification-empty {
    padding: 2rem 1.25rem;
    text-align: center;
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
}

/* Responsive — full-width panel on mobile */
@media (max-width: 480px) {
    .notification-panel {
        right: 0.75rem;
        left: 0.75rem;
        width: auto;
        top: 68px;
    }
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    padding: var(--spacing-3xl) 0;
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
}

.hero-container {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-greeting {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-neon-blue), var(--color-neon-purple), var(--color-neon-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: glow 3s ease-in-out infinite alternate;
}

@keyframes glow {
    0%, 100% {
        filter: drop-shadow(0 0 20px rgba(88, 166, 255, 0.5));
    }
    50% {
        filter: drop-shadow(0 0 30px rgba(163, 113, 247, 0.6));
    }
}

.hero-subtitle {
    font-size: 1.75rem;
    color: var(--color-neon-blue);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 0 20px rgba(88, 166, 255, 0.4);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.hero-social {
    display: flex;
    gap: var(--spacing-md);
}

.hero-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border-default);
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

.hero-social a:hover {
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.2), rgba(163, 113, 247, 0.2));
    border-color: var(--color-neon-blue);
    box-shadow: 0 0 20px rgba(88, 166, 255, 0.4);
    transform: translateY(-2px);
}

/* Hero Image - Cybersecurity Frame Design */
.hero-image-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px;
}

.hero-image-container {
    position: relative;
    width: 100%;
    max-width: 520px;
    aspect-ratio: 3/4;
    transform-style: preserve-3d;
}

.hero-image {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-bg-secondary);
    box-shadow:
        0 0 40px rgba(88, 166, 255, 0.3),
        0 0 80px rgba(163, 113, 247, 0.2),
        0 20px 60px rgba(0, 0, 0, 0.6),
        inset 0 0 100px rgba(88, 166, 255, 0.05);
    z-index: 2;
    transition: all var(--transition-slow);
    animation: heroImageGlow 4s ease-in-out infinite;
}

@keyframes heroImageGlow {
    0%, 100% {
        box-shadow:
            0 0 40px rgba(88, 166, 255, 0.3),
            0 0 80px rgba(163, 113, 247, 0.2),
            0 20px 60px rgba(0, 0, 0, 0.6),
            inset 0 0 100px rgba(88, 166, 255, 0.05);
    }
    50% {
        box-shadow:
            0 0 60px rgba(88, 166, 255, 0.5),
            0 0 120px rgba(163, 113, 247, 0.3),
            0 25px 70px rgba(0, 0, 0, 0.7),
            inset 0 0 120px rgba(88, 166, 255, 0.08);
    }
}

.hero-image:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow:
        0 0 80px rgba(88, 166, 255, 0.6),
        0 0 150px rgba(163, 113, 247, 0.4),
        0 30px 80px rgba(0, 0, 0, 0.8),
        inset 0 0 150px rgba(88, 166, 255, 0.1);
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    display: block;
    filter: brightness(1.05) contrast(1.08);
    transition: all var(--transition-base);
}

.hero-image:hover img {
    filter: brightness(1.08) contrast(1.12);
    transform: scale(1.02);
}

/* Cybersecurity Scan Line Effect */
.hero-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        transparent 0%,
        rgba(88, 166, 255, 0.08) 50%,
        transparent 100%
    );
    animation: scanLine 4s linear infinite;
    z-index: 3;
    pointer-events: none;
    opacity: 0.7;
}

@keyframes scanLine {
    0% {
        transform: translateY(-100%);
    }
    100% {
        transform: translateY(100%);
    }
}

.hero-image:hover::before {
    animation-duration: 2s;
}

/* Cybersecurity Frame Corners */
.hero-frame-corner {
    position: absolute;
    width: 60px;
    height: 60px;
    z-index: 5;
    pointer-events: none;
}

.hero-frame-corner::before,
.hero-frame-corner::after {
    content: '';
    position: absolute;
    background: linear-gradient(135deg, var(--color-neon-blue), var(--color-neon-purple));
    box-shadow: 0 0 15px rgba(88, 166, 255, 0.6);
}

.hero-frame-corner::before {
    width: 100%;
    height: 3px;
}

.hero-frame-corner::after {
    width: 3px;
    height: 100%;
}

/* Top Left */
.hero-frame-tl {
    top: -10px;
    left: -10px;
    animation: cornerPulse 3s ease-in-out infinite;
}
.hero-frame-tl::before { top: 0; left: 0; }
.hero-frame-tl::after { top: 0; left: 0; }

/* Top Right */
.hero-frame-tr {
    top: -10px;
    right: -10px;
    animation: cornerPulse 3s ease-in-out infinite 0.75s;
}
.hero-frame-tr::before { top: 0; right: 0; }
.hero-frame-tr::after { top: 0; right: 0; }

/* Bottom Left */
.hero-frame-bl {
    bottom: -10px;
    left: -10px;
    animation: cornerPulse 3s ease-in-out infinite 1.5s;
}
.hero-frame-bl::before { bottom: 0; left: 0; }
.hero-frame-bl::after { bottom: 0; left: 0; }

/* Bottom Right */
.hero-frame-br {
    bottom: -10px;
    right: -10px;
    animation: cornerPulse 3s ease-in-out infinite 2.25s;
}
.hero-frame-br::before { bottom: 0; right: 0; }
.hero-frame-br::after { bottom: 0; right: 0; }

@keyframes cornerPulse {
    0%, 100% {
        opacity: 0.6;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.1);
    }
}

/* Animated Border Lines */
.hero-border-line {
    position: absolute;
    z-index: 4;
    pointer-events: none;
}

.hero-border-top,
.hero-border-bottom {
    height: 2px;
    left: 60px;
    right: 60px;
    background: linear-gradient(90deg,
        transparent 0%,
        var(--color-neon-blue) 50%,
        transparent 100%);
}

.hero-border-left,
.hero-border-right {
    width: 2px;
    top: 60px;
    bottom: 60px;
    background: linear-gradient(180deg,
        transparent 0%,
        var(--color-neon-purple) 50%,
        transparent 100%);
}

.hero-border-top {
    top: -10px;
    animation: borderSlideLR 3s ease-in-out infinite;
}

.hero-border-bottom {
    bottom: -10px;
    animation: borderSlideLR 3s ease-in-out infinite 1.5s;
}

.hero-border-left {
    left: -10px;
    animation: borderSlideTB 3s ease-in-out infinite 0.75s;
}

.hero-border-right {
    right: -10px;
    animation: borderSlideTB 3s ease-in-out infinite 2.25s;
}

@keyframes borderSlideLR {
    0%, 100% {
        opacity: 0.4;
        transform: scaleX(0.8);
    }
    50% {
        opacity: 1;
        transform: scaleX(1);
    }
}

@keyframes borderSlideTB {
    0%, 100% {
        opacity: 0.4;
        transform: scaleY(0.8);
    }
    50% {
        opacity: 1;
        transform: scaleY(1);
    }
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(10px, -10px) rotate(5deg);
    }
    50% {
        transform: translate(-5px, -20px) rotate(-5deg);
    }
    75% {
        transform: translate(-15px, -10px) rotate(3deg);
    }
}

/* Floating Icons */
.hero-float {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-bg-secondary), var(--color-bg-tertiary));
    border: 2px solid var(--color-border-default);
    border-radius: var(--radius-md);
    color: var(--color-neon-blue);
    font-size: 1.5rem;
    z-index: 3;
    animation: floatIcon 4s ease-in-out infinite;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.hero-float svg {
    filter: drop-shadow(0 0 8px rgba(88, 166, 255, 0.5));
}

.hero-float-1 {
    top: 10%;
    right: -5%;
    animation-delay: 0s;
}

.hero-float-2 {
    bottom: 15%;
    left: -8%;
    animation-delay: 1s;
    color: var(--color-neon-purple);
}

.hero-float-3 {
    top: 5%;
    left: 10%;
    animation-delay: 2s;
    font-size: 2rem;
}

.hero-float-4 {
    bottom: 10%;
    right: 5%;
    animation-delay: 3s;
    color: var(--color-neon-green);
    font-size: 2rem;
}

@keyframes floatIcon {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-15px) rotate(5deg);
    }
}

/* ===================================
   About Section
   =================================== */
.about {
    background-color: var(--color-bg-primary);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: radial-gradient(ellipse at top, var(--color-blue-subtle) 0%, transparent 70%);
    pointer-events: none;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-bg-primary), var(--color-bg-secondary));
    border: 1px solid var(--color-border-default);
    border-left: 3px solid var(--color-blue-accent);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.about-content::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent,
        rgba(0, 149, 255, 0.05),
        transparent
    );
    transform: rotate(45deg);
    transition: all 0.5s;
}

.about-content:hover::before {
    left: 100%;
}

.about-content:hover {
    background: linear-gradient(135deg, var(--color-blue-subtle), var(--color-bg-secondary));
    box-shadow: 0 8px 24px var(--color-blue-glow);
    transform: translateY(-4px);
}

.about-content p {
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 0;
    position: relative;
    z-index: 1;
}

/* ===================================
   Education Section
   =================================== */
.education-section {
    background-color: var(--color-bg-secondary);
    position: relative;
}

.education-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-blue-accent), transparent);
    opacity: 0.2;
}

.education-content {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.education-item {
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-bg-primary), var(--color-bg-secondary));
    border: 1px solid var(--color-border-default);
    border-left: 3px solid var(--color-blue-accent);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-fast);
}

.education-item:hover {
    background: linear-gradient(135deg, var(--color-blue-subtle), var(--color-bg-secondary));
    box-shadow: 0 4px 12px var(--color-blue-glow);
    transform: translateX(4px);
}

.education-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.education-header h4 {
    font-size: 1.125rem;
    color: var(--color-text-primary);
}

.education-date {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    font-family: var(--font-mono);
}

.education-institution {
    font-size: 1rem;
    color: var(--color-accent-primary);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.education-details {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: 0;
}

/* ===================================
   Certificates Section
   =================================== */
.certificates-section {
    background-color: var(--color-bg-secondary);
    position: relative;
}

.certificates-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-blue-accent), transparent);
    opacity: 0.2;
}

.certificates-content {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.certificate-item {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-bg-secondary), var(--color-bg-tertiary));
    border: 1px solid var(--color-border-default);
    border-left: 3px solid var(--color-blue-accent);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.certificate-item::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent,
        rgba(0, 149, 255, 0.05),
        transparent
    );
    transform: rotate(45deg);
    transition: all 0.5s;
}

.certificate-item:hover::before {
    left: 100%;
}

.certificate-item:hover {
    background: linear-gradient(135deg, var(--color-blue-subtle), var(--color-bg-tertiary));
    box-shadow: 0 8px 24px var(--color-blue-glow);
    transform: translateX(4px);
}

.certificate-icon {
    flex-shrink: 0;
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.1), rgba(163, 113, 247, 0.1));
    border: 2px solid rgba(88, 166, 255, 0.2);
    border-radius: var(--radius-md);
    position: relative;
    z-index: 1;
    box-shadow: 0 0 20px rgba(88, 166, 255, 0.15);
    transition: all var(--transition-fast);
    padding: 0.75rem;
}

.certificate-icon .cert-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(1.1) contrast(1.05);
    transition: all var(--transition-fast);
}

.certificate-item:hover .certificate-icon {
    box-shadow: 0 0 30px rgba(88, 166, 255, 0.3);
    transform: scale(1.05);
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.15), rgba(163, 113, 247, 0.15));
}

.certificate-item:hover .certificate-icon .cert-logo {
    filter: brightness(1.2) contrast(1.1);
    transform: scale(1.05);
}

.certificate-info {
    flex: 1;
    position: relative;
    z-index: 1;
}

.certificate-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.certificate-header h4 {
    font-size: 1.125rem;
    color: var(--color-text-primary);
    margin: 0;
}

.certificate-date {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    font-family: var(--font-mono);
    font-weight: 500;
}

.certificate-issuer {
    font-size: 1rem;
    color: var(--color-neon-blue);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.certificate-details {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.certificate-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-link);
    transition: all var(--transition-fast);
    padding: 0.375rem 0.75rem;
    background: rgba(88, 166, 255, 0.1);
    border: 1px solid rgba(88, 166, 255, 0.3);
    border-radius: var(--radius-sm);
}

.certificate-link:hover {
    color: var(--color-text-link-hover);
    background: rgba(88, 166, 255, 0.2);
    border-color: var(--color-neon-blue);
    box-shadow: 0 0 15px rgba(88, 166, 255, 0.3);
    transform: translateX(4px);
}

/* ===================================
   Tech Stack Section
   =================================== */
.tech-stack {
    background-color: var(--color-bg-secondary);
    position: relative;
}

.tech-stack::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-blue-accent), transparent);
    opacity: 0.2;
}

.tech-categories {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
    max-width: 1000px;
    margin: 0 auto;
}

.tech-category {
    background: linear-gradient(135deg, var(--color-bg-secondary), var(--color-bg-tertiary));
    border: 1px solid var(--color-border-default);
    border-top: 2px solid var(--color-blue-accent);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    position: relative;
    overflow: hidden;
}

.tech-category::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, var(--color-blue-glow) 0%, transparent 70%);
    opacity: 0.3;
    pointer-events: none;
}

.tech-category-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-bg-secondary), var(--color-bg-tertiary));
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 220px;
    max-width: 100%;
}

.tech-item::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent,
        rgba(88, 166, 255, 0.1),
        transparent
    );
    transform: rotate(45deg);
    transition: all 0.5s;
}

.tech-item:hover::before {
    left: 100%;
}

.tech-item:hover {
    border-color: var(--color-neon-blue);
    box-shadow: 0 4px 20px rgba(88, 166, 255, 0.3), 0 0 30px rgba(163, 113, 247, 0.2);
    transform: translateY(-4px) scale(1.05);
}

.tech-icon {
    font-size: 2rem;
    filter: drop-shadow(0 0 8px rgba(88, 166, 255, 0.3));
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(1.1) contrast(1.05);
    transition: all var(--transition-fast);
}

.tech-item:hover .tech-logo {
    filter: brightness(1.3) contrast(1.1);
    transform: scale(1.1);
}

.tech-name {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-primary);
    position: relative;
    z-index: 1;
    margin-bottom: 0.25rem;
}

.tech-level {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    background: rgba(255, 193, 7, 0.15);
    color: #ffc107;
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: var(--radius-sm);
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    z-index: 1;
    height: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-description {
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
    line-height: 1.5;
    margin: 0;
    margin-top: auto;
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 0 0.5rem;
    max-width: 100%;
}

/* ===================================
   Projects Section
   =================================== */
.projects {
    position: relative;
    background-color: var(--color-bg-primary);
}

.projects::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: radial-gradient(ellipse at top, var(--color-blue-subtle) 0%, transparent 70%);
    pointer-events: none;
}

/* Featured Projects Section */
.featured-projects-section {
    margin-bottom: var(--spacing-3xl);
}

.featured-projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-xl);
}

/* Other Projects Section */
.other-projects-section {
    margin-top: var(--spacing-3xl);
}

.other-projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

/* ===================================
   Professional Development Section
   =================================== */
.professional-development {
    background-color: var(--color-bg-primary);
    position: relative;
}

.professional-development::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: radial-gradient(ellipse at top, var(--color-blue-subtle) 0%, transparent 70%);
    pointer-events: none;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.project-card {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-base);
    position: relative;
    display: flex;
    flex-direction: column;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-neon-blue), var(--color-neon-purple), var(--color-neon-pink));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.project-card:hover {
    box-shadow: 0 8px 32px rgba(88, 166, 255, 0.2), 0 0 40px rgba(163, 113, 247, 0.1);
    transform: translateY(-8px);
    border-color: rgba(88, 166, 255, 0.4);
}

.project-card:hover::before {
    opacity: 1;
}

/* Featured Project Cards - Larger and more prominent */
.featured-card {
    background: linear-gradient(135deg, var(--color-bg-secondary), var(--color-bg-tertiary));
    border: 2px solid var(--color-border-default);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.featured-card::before {
    height: 4px;
    opacity: 0.5;
}

.featured-card:hover {
    box-shadow: 0 12px 48px rgba(88, 166, 255, 0.3), 0 0 60px rgba(163, 113, 247, 0.15);
    transform: translateY(-12px) scale(1.02);
    border-color: rgba(88, 166, 255, 0.6);
}

.featured-card:hover::before {
    opacity: 1;
}

.featured-card .project-image {
    height: 280px;
}

.featured-card .project-title {
    font-size: 1.5rem;
}

.featured-card .project-brief {
    font-size: 1rem;
}

.project-image {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
    background-color: var(--color-bg-secondary);
    flex-shrink: 0;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.btn-view-details {
    padding: 0.625rem 1.25rem;
    background: linear-gradient(135deg, var(--color-neon-blue), var(--color-neon-purple));
    color: var(--color-bg-primary);
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 15px rgba(88, 166, 255, 0.4);
}

.btn-view-details:hover {
    box-shadow: 0 6px 25px rgba(88, 166, 255, 0.6);
    transform: scale(1.05);
}

.project-content {
    padding: var(--spacing-lg);
}

.project-image-link {
    display: block;
    text-decoration: none;
}

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.project-title-link {
    color: var(--color-text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.project-title-link:hover {
    color: var(--color-text-link);
}

.project-brief {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
}

.project-meta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tech-badge {
    display: inline-block;
    padding: 0.25rem 0.625rem;
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.2), rgba(163, 113, 247, 0.2));
    color: var(--color-neon-blue);
    border: 1px solid rgba(88, 166, 255, 0.3);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    font-family: var(--font-mono);
    transition: all var(--transition-fast);
    box-shadow: 0 0 10px rgba(88, 166, 255, 0.1);
}

.tech-badge:hover {
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.3), rgba(163, 113, 247, 0.3));
    border-color: var(--color-neon-blue);
    box-shadow: 0 0 15px rgba(88, 166, 255, 0.3);
    transform: translateY(-2px);
}

.project-result {
    display: flex;
    gap: var(--spacing-sm);
}

.result-badge {
    display: inline-block;
    padding: 0.25rem 0.625rem;
    background: linear-gradient(135deg, rgba(63, 185, 80, 0.2), rgba(0, 255, 159, 0.2));
    color: var(--color-neon-green);
    border: 1px solid rgba(63, 185, 80, 0.4);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    font-family: var(--font-mono);
    box-shadow: 0 0 12px rgba(63, 185, 80, 0.2);
    transition: all var(--transition-fast);
}

.result-badge:hover {
    box-shadow: 0 0 18px rgba(63, 185, 80, 0.4);
    transform: scale(1.05);
}

.project-links {
    display: flex;
    gap: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border-default);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-link);
    transition: color var(--transition-fast);
}

.project-link:hover {
    color: var(--color-text-link-hover);
}

/* ===================================
   Project Modal
   =================================== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.modal.active {
    display: flex;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-lg);
    max-width: 900px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    z-index: 1;
}

.modal-close {
    position: sticky;
    top: 0;
    right: 0;
    float: right;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-sm);
    width: 36px;
    height: 36px;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    color: var(--color-text-secondary);
    margin: var(--spacing-lg);
    margin-bottom: 0;
    z-index: 2;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-header {
    margin-bottom: var(--spacing-xl);
}

.modal-title {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.modal-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.modal-section {
    margin-bottom: var(--spacing-2xl);
}

.modal-section-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.modal-section-content {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.modal-section-content ul,
.modal-section-content ol {
    margin-left: var(--spacing-xl);
    margin-top: var(--spacing-md);
}

.modal-section-content li {
    margin-bottom: var(--spacing-sm);
}

.modal-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.modal-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.metric-card {
    padding: var(--spacing-lg);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
}

.metric-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-success);
    font-family: var(--font-mono);
}

.metric-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
}

/* ===================================
   Testimonials Section
   =================================== */
.testimonials {
    background-color: var(--color-bg-secondary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.testimonial-card {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

.testimonial-card:hover {
    box-shadow: 0 8px 24px var(--color-shadow-large);
    transform: translateY(-2px);
}

.testimonial-content {
    margin-bottom: var(--spacing-lg);
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-primary);
    font-style: italic;
    position: relative;
}

.testimonial-text::before {
    content: '"';
    font-size: 3rem;
    color: var(--color-accent-primary);
    opacity: 0.3;
    position: absolute;
    top: -1rem;
    left: -0.5rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border-default);
}

.testimonial-info h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.testimonial-title {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.testimonial-company {
    font-size: 0.875rem;
    color: var(--color-accent-primary);
    font-weight: 500;
    margin-bottom: 0;
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    background-color: var(--color-bg-secondary);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-blue-accent), transparent);
    opacity: 0.2;
}

.contact::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 300px;
    height: 150px;
    background: radial-gradient(ellipse, var(--color-blue-glow) 0%, transparent 70%);
    pointer-events: none;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    max-width: 900px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-bg-primary), var(--color-bg-tertiary));
    border: 1px solid var(--color-border-default);
    border-left: 3px solid var(--color-blue-accent);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.contact-item:hover {
    background: linear-gradient(135deg, var(--color-blue-subtle), var(--color-bg-tertiary));
    box-shadow: 0 4px 12px var(--color-blue-glow);
    transform: translateX(4px);
}

.contact-icon {
    flex-shrink: 0;
    color: var(--color-accent-primary);
}

.contact-item h4 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-tertiary);
    margin-bottom: var(--spacing-xs);
}

.contact-item a {
    font-size: 1rem;
    color: var(--color-text-link);
    word-break: break-word;
}

.contact-cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    align-items: flex-start;
}

.social-share {
    width: 100%;
}

.social-share p {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.share-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.share-btn:hover {
    background-color: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
    color: white;
    transform: translateY(-2px);
}

/* ===================================
   Footer
   =================================== */
.footer {
    background-color: var(--color-bg-primary);
    border-top: 1px solid var(--color-border-default);
    padding: var(--spacing-xl) 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-content p {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin: 0;
}

.footer-links a {
    color: var(--color-text-link);
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-text-link-hover);
}

/* ===================================
   Responsive Design
   =================================== */

/* Tablet/iPad (1024px and below) */
@media (max-width: 1024px) {
    /* Tablet Navigation - Hamburger Menu */
    .nav-menu {
        position: fixed;
        top: 73px;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--color-bg-primary);
        border-bottom: 1px solid var(--color-border-default);
        padding: var(--spacing-lg);
        gap: var(--spacing-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        z-index: 1000;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    /* Tablet Dropdown */
    .nav-dropdown {
        position: relative;
    }

    .dropdown-content {
        position: static;
        display: none;
        margin-top: var(--spacing-sm);
        box-shadow: none;
        border: none;
        border-left: 2px solid var(--color-blue-accent);
        padding-left: var(--spacing-md);
        background-color: transparent;
    }

    .nav-dropdown.active .dropdown-content {
        display: block;
    }

    .dropdown-link {
        padding: 0.5rem 0;
        border-bottom: none;
    }

    .dropdown-link:hover {
        padding-left: 0.5rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    /* Hero Section */
    .hero-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .hero-image-wrapper {
        max-width: 350px;
    }

    .hero-title {
        font-size: 2.75rem;
    }

    .hero-subtitle {
        font-size: 1.5rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    /* Content Grids */
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .other-projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .certificates-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .education-grid {
        grid-template-columns: 1fr;
    }

    .leadership-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 968px) {
    :root {
        --container-padding: 1rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.5rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 73px;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--color-bg-primary);
        border-bottom: 1px solid var(--color-border-default);
        padding: var(--spacing-lg);
        gap: var(--spacing-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    /* Mobile Dropdown */
    .nav-dropdown {
        position: relative;
    }

    .dropdown-content {
        position: static;
        display: none;
        margin-top: var(--spacing-sm);
        box-shadow: none;
        border: none;
        border-left: 2px solid var(--color-blue-accent);
        padding-left: var(--spacing-md);
        background-color: transparent;
    }

    .nav-dropdown.active .dropdown-content {
        display: block;
    }

    .dropdown-link {
        padding: 0.5rem 0;
        border-bottom: none;
    }

    .dropdown-link:hover {
        padding-left: 0.5rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .hero {
        padding: var(--spacing-2xl) 0;
        min-height: auto;
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        justify-items: center;
    }

    .hero-content {
        text-align: center;
    }

    .hero-image-wrapper {
        order: -1;
        margin-bottom: var(--spacing-xl);
        width: 100%;
        display: flex;
        justify-content: center;
    }

    .hero-image-container {
        max-width: 350px;
        margin: 0 auto;
    }

    .hero-float {
        width: 50px;
        height: 50px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .featured-projects-grid {
        grid-template-columns: 1fr;
    }

    .other-projects-grid {
        grid-template-columns: 1fr;
    }

    .tech-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: var(--spacing-md);
    }

    .tech-item {
        min-height: 200px;
        padding: var(--spacing-lg);
    }

    .tech-description {
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .modal-content {
        max-height: 95vh;
        margin: var(--spacing-sm);
    }

    .modal-body {
        padding: var(--spacing-lg);
    }

    .modal-title {
        font-size: 1.5rem;
    }
}

/* ===================================
   Animations & Transitions
   =================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* Scroll reveal animation */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   Accessibility
   =================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

:focus-visible {
    outline: 2px solid var(--color-accent-primary);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ===================================
   Contact Form Styles
   =================================== */
.contact-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

.contact-form-container {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-default);
    border-radius: 12px;
    padding: 2.5rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-primary);
}

.required {
    color: #f85149;
}

.form-group input,
.form-group textarea {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border-default);
    border-radius: 6px;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    color: var(--color-text-primary);
    font-family: inherit;
    transition: all 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-tertiary);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.char-count {
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
    text-align: right;
}

.hidden {
    display: none !important;
}

/* Submit Button Loading State */
.btn-loading {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Form Messages */
.form-message {
    padding: 1rem;
    border-radius: 6px;
    font-size: 0.95rem;
    margin-top: 1rem;
}

.form-message.success {
    background: rgba(46, 160, 67, 0.1);
    border: 1px solid rgba(46, 160, 67, 0.3);
    color: #3fb950;
}

.form-message.error {
    background: rgba(248, 81, 73, 0.1);
    border: 1px solid rgba(248, 81, 73, 0.3);
    color: #f85149;
}

/* Contact Sidebar */
.contact-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-info-box {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-default);
    border-radius: 12px;
    padding: 2rem;
}

.contact-info-box h3 {
    font-size: 1.25rem;
    color: var(--color-text-primary);
    margin-bottom: 1.5rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    border-bottom: 1px solid var(--color-border-muted);
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.contact-item:last-child {
    border-bottom: none;
}

.contact-item:hover {
    background: rgba(96, 165, 250, 0.08);
    border-color: var(--color-accent-primary);
    transform: translateX(4px);
}

.contact-icon {
    flex-shrink: 0;
    color: var(--color-accent-primary);
    transition: transform 0.3s ease;
}

.contact-item:hover .contact-icon {
    transform: scale(1.1);
}

.contact-item h4 {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: var(--color-text-link);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s ease;
    margin: 0;
}

.contact-item:hover p {
    color: var(--color-text-link-hover);
}

.resume-cta {
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
    border: 1px solid var(--color-border-default);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
}

.resume-cta .btn {
    width: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

/* Responsive Design */
@media (max-width: 968px) {
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-form-container,
    .contact-info-box {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .contact-form-container,
    .contact-info-box,
    .resume-cta {
        padding: 1.25rem;
    }

    .form-group input,
    .form-group textarea {
        padding: 0.75rem;
        font-size: 0.95rem;
    }
}

/* ===================================
   Leadership Section
   =================================== */

.leadership-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.leadership-card {
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
    border: 1px solid var(--color-border-default);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.leadership-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent-primary);
    box-shadow: 0 12px 24px rgba(96, 165, 250, 0.15);
}

.leadership-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.leadership-icon {
    font-size: 2.5rem;
    line-height: 1;
}

.role-badge {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.role-badge.organizer {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.role-badge.mentor {
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.leadership-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0;
    line-height: 1.3;
}

.leadership-subtitle {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin: 0;
    font-weight: 500;
}

.leadership-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin: 0;
}

.leadership-highlights {
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.highlight-item svg {
    flex-shrink: 0;
    margin-top: 0.125rem;
    color: var(--color-accent-primary);
}

.skills-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.skill-tag {
    padding: 0.375rem 0.875rem;
    background: rgba(148, 163, 184, 0.1);
    color: var(--color-text-muted);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.leadership-card:hover .skill-tag {
    background: rgba(96, 165, 250, 0.1);
    color: var(--color-accent-primary);
    border-color: rgba(96, 165, 250, 0.3);
}

/* Responsive Design for Leadership Section */
@media (max-width: 968px) {
    .leadership-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .leadership-card {
        padding: 1.5rem;
    }

    .leadership-title {
        font-size: 1.25rem;
    }

    .leadership-icon {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .leadership-card {
        padding: 1.25rem;
        gap: 1rem;
    }

    .leadership-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .role-badge {
        padding: 0.375rem 0.75rem;
        font-size: 0.75rem;
    }

    .leadership-title {
        font-size: 1.125rem;
    }

    .leadership-subtitle {
        font-size: 0.875rem;
    }

    .highlight-item {
        font-size: 0.9rem;
    }

    .skills-tags {
        gap: 0.375rem;
    }

    .skill-tag {
        padding: 0.25rem 0.625rem;
        font-size: 0.8rem;
    }
}