/* ===================================
   Modern Project Detail Page Styles
   =================================== */

/* Project Navigation */
.project-nav {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.3s ease, opacity 0.3s ease;
    padding: var(--spacing-md) 0;
}

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

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

.project-nav .nav-brand {
    flex: 1;
    text-align: left;
}

.project-nav .nav-center {
    flex: 0 0 auto;
    display: flex;
    justify-content: center;
}

.project-nav .nav-next {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.project-nav .nav-disabled {
    color: var(--color-text-tertiary);
    font-weight: 500;
    opacity: 0.5;
    cursor: not-allowed;
    padding: 10px 20px;
    font-size: 1rem;
}

/* Navigation Button Sizing - Previous/Next larger than Back to Portfolio */
.project-nav .nav-brand .btn,
.project-nav .nav-next .btn {
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
}

.project-nav .nav-center .btn {
    padding: 8px 18px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Old link styles - now using buttons */
.project-nav .nav-project-link,
.project-nav .nav-back-home {
    color: #94a3b8;
    font-weight: 500;
    transition: all 0.3s ease;
    text-decoration: none;
}

.project-nav .nav-project-link:hover {
    color: #60a5fa;
}

.project-nav .nav-brand .nav-project-link:hover {
    transform: translateX(-5px);
}

.project-nav .nav-next .nav-project-link:hover {
    transform: translateX(5px);
}

.project-nav .nav-back-home {
    padding: 8px 20px;
    background: rgba(96, 165, 250, 0.1);
    border: 1px solid rgba(96, 165, 250, 0.3);
    border-radius: 6px;
}

.project-nav .nav-back-home:hover {
    background: rgba(96, 165, 250, 0.2);
    border-color: #60a5fa;
    color: #60a5fa;
}

/* Animated Hero Section */
.project-hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    position: relative;
    overflow: hidden;
}

.project-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(96, 165, 250, 0.1) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 0.8; }
}

.project-category {
    display: inline-block;
    padding: 8px 16px;
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.2), rgba(167, 139, 250, 0.2));
    border: 1px solid rgba(96, 165, 250, 0.3);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    color: #60a5fa;
    margin-bottom: 24px;
    animation: fadeInDown 0.6s ease;
}

.project-hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    background:  #FFFFFF ;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    animation: fadeInUp 0.8s ease;
    position: relative;
    z-index: 1;
}

.project-hero-tagline {
    font-size: 1.25rem;
    color: #94a3b8;
    margin-bottom: 40px;
    line-height: 1.7;
    animation: fadeInUp 1s ease;
    position: relative;
    z-index: 1;
}

.project-meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
    animation: fadeInUp 1.2s ease;
    position: relative;
    z-index: 1;
}

.meta-item {
    padding: 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.meta-item:hover {
    background: rgba(96, 165, 250, 0.1);
    border-color: #60a5fa;
    transform: translateY(-5px);
}

.meta-label {
    display: block;
    font-size: 0.75rem;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
    font-weight: 600;
}

.meta-value {
    display: block;
    font-size: 1rem;
    color: #e2e8f0;
    font-weight: 600;
}

.status-completed {
    color: #22c55e;
}

.tech-stack-hero {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    animation: fadeInUp 1.4s ease;
    position: relative;
    z-index: 1;
}

.tech-badge {
    padding: 8px 16px;
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.15), rgba(167, 139, 250, 0.15));
    border: 1px solid rgba(96, 165, 250, 0.3);
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    color: #60a5fa;
    transition: all 0.3s ease;
}

.tech-badge:hover {
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.25), rgba(167, 139, 250, 0.25));
    border-color: #60a5fa;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(96, 165, 250, 0.3);
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Section Styles */
.project-section {
    padding: 80px 0;
    position: relative;
}

.bg-subtle {
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
}

.bg-dark {
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
}

.container-narrow {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #e2e8f0 0%, #94a3b8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 32px;
    position: relative;
    padding-bottom: 16px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #60a5fa 0%, #a78bfa 100%);
    border-radius: 2px;
}

.lead-text {
    font-size: 1.25rem;
    line-height: 1.8;
    color: #cbd5e1;
    margin-bottom: 24px;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.feature-card {
    padding: 32px;
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.05), rgba(167, 139, 250, 0.05));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.1), rgba(167, 139, 250, 0.1));
    opacity: 0;
    transition: opacity 0.4s ease;
}

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

.feature-card:hover {
    transform: translateY(-10px);
    border-color: #60a5fa;
    box-shadow: 0 20px 40px rgba(96, 165, 250, 0.2);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    display: block;
    filter: drop-shadow(0 0 10px rgba(96, 165, 250, 0.5));
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #e2e8f0;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 0.9375rem;
    color: #94a3b8;
    line-height: 1.7;
}

/* Contribution List */
.contribution-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 32px;
}

.contribution-item {
    display: flex;
    gap: 24px;
    padding: 24px;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.8), rgba(30, 41, 59, 0.8));
    border-left: 4px solid #60a5fa;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.contribution-item:hover {
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.1), rgba(167, 139, 250, 0.1));
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(96, 165, 250, 0.2);
}

.contribution-number {
    font-size: 2rem;
    font-weight: 700;
    color: #60a5fa;
    font-family: 'Roboto Mono', monospace;
    flex-shrink: 0;
}

.contribution-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: #e2e8f0;
    margin-bottom: 8px;
}

.contribution-content p {
    font-size: 0.9375rem;
    color: #94a3b8;
    line-height: 1.7;
}

/* Tech Section */
.tech-section {
    margin-top: 32px;
}

.tech-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #e2e8f0;
    margin-bottom: 24px;
}

.tech-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.tech-category {
    padding: 24px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.tech-category:hover {
    background: rgba(96, 165, 250, 0.05);
    border-color: rgba(96, 165, 250, 0.3);
}

.tech-category h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: #60a5fa;
    margin-bottom: 12px;
}

.tech-category p {
    font-size: 0.9375rem;
    color: #94a3b8;
    line-height: 1.7;
    margin-bottom: 12px;
}

.feature-list {
    list-style: none;
    padding-left: 0;
}

.feature-list li {
    padding: 8px 0 8px 24px;
    position: relative;
    color: #94a3b8;
    line-height: 1.6;
}

.feature-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: #60a5fa;
    font-weight: 700;
}

/* Learning Grid */
.learning-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 32px;
}

.learning-card {
    padding: 32px;
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.05), rgba(167, 139, 250, 0.05));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    transition: all 0.4s ease;
}

.learning-card:hover {
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.1), rgba(167, 139, 250, 0.1));
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(96, 165, 250, 0.2);
}

.learning-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
    display: block;
}

.learning-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #e2e8f0;
    margin-bottom: 12px;
}

.learning-card p, .learning-card ul {
    font-size: 0.9375rem;
    color: #94a3b8;
    line-height: 1.7;
}

.learning-card ul {
    list-style: none;
    padding-left: 0;
}

.learning-card li {
    padding: 6px 0 6px 20px;
    position: relative;
}

.learning-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #22c55e;
    font-weight: 700;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin-top: 32px;
}

.stat-item {
    padding: 32px;
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.1), rgba(167, 139, 250, 0.1));
    border: 1px solid rgba(96, 165, 250, 0.3);
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(96, 165, 250, 0.3);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-family: 'Roboto Mono', monospace;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.875rem;
    color: #94a3b8;
    font-weight: 500;
}

/* Project Links */
.project-links-section {
    margin-top: 40px;
}

.project-links-grid {
    display: grid;
    gap: 16px;
    margin-bottom: 32px;
}

.project-link-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.1), rgba(167, 139, 250, 0.1));
    border: 1px solid rgba(96, 165, 250, 0.3);
    border-radius: 12px;
    color: #e2e8f0;
    transition: all 0.3s ease;
}

.project-link-card:hover {
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.2), rgba(167, 139, 250, 0.2));
    border-color: #60a5fa;
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(96, 165, 250, 0.3);
}

.project-link-card svg {
    flex-shrink: 0;
    color: #60a5fa;
}

.project-link-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: #e2e8f0;
    margin-bottom: 4px;
}

.project-link-card p {
    font-size: 0.875rem;
    color: #94a3b8;
}

.back-link {
    text-align: center;
}

/* Project Screenshots Showcase */
.project-screenshots {
    display: flex;
    flex-direction: column;
    gap: 64px;
    margin-top: 40px;
}

.screenshot-item {
    display: grid;
    gap: 40px;
    align-items: center;
    animation: fadeInUp 0.8s ease;
}

/* Image on left, text on right */
.screenshot-item.screenshot-left {
    grid-template-columns: 1.4fr 0.6fr;
}

.screenshot-item.screenshot-left img {
    order: 1;
}

.screenshot-item.screenshot-left .screenshot-caption {
    order: 2;
    text-align: left;
}

/* Image on right, text on left */
.screenshot-item.screenshot-right {
    grid-template-columns: 0.6fr 1.4fr;
}

.screenshot-item.screenshot-right img {
    order: 2;
}

.screenshot-item.screenshot-right .screenshot-caption {
    order: 1;
    text-align: left;
}

.screenshot-item img {
    width: 100%;
    border-radius: 16px;
    border: 2px solid rgba(96, 165, 250, 0.2);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    transition: all 0.4s ease;
    cursor: pointer;
}

.screenshot-item img:hover {
    transform: translateY(-8px) scale(1.05);
    border-color: #60a5fa;
    box-shadow: 0 20px 60px rgba(96, 165, 250, 0.3);
}

.screenshot-caption h4 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #e2e8f0;
    margin-bottom: 12px;
}

.screenshot-caption p {
    font-size: 1rem;
    color: #94a3b8;
    line-height: 1.7;
}

/* Responsive */

/* Tablet/iPad (1024px and below) */
@media (max-width: 1024px) {
    .project-hero {
        padding: 100px 0 60px;
    }

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

    .project-hero-tagline {
        font-size: 1.125rem;
    }

    .project-meta-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .section-title {
        font-size: 2.25rem;
    }

    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

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

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

    .screenshot-item.screenshot-left {
        grid-template-columns: 1.2fr 0.8fr;
    }

    .screenshot-item.screenshot-right {
        grid-template-columns: 0.8fr 1.2fr;
    }

    .screenshot-caption h4 {
        font-size: 1.25rem;
    }

    .screenshot-caption p {
        font-size: 0.9375rem;
    }
}

@media (max-width: 768px) {
    .project-hero-title {
        font-size: 2.25rem;
    }

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

    .feature-grid, .learning-grid, .stats-grid {
        grid-template-columns: 1fr;
    }

    .contribution-item {
        flex-direction: column;
        gap: 12px;
    }

    .project-screenshots {
        gap: 32px;
    }

    .screenshot-item {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .screenshot-item.screenshot-left img,
    .screenshot-item.screenshot-right img {
        order: 1;
    }

    .screenshot-item.screenshot-left .screenshot-caption,
    .screenshot-item.screenshot-right .screenshot-caption {
        order: 2;
        text-align: left;
    }

    .screenshot-caption h4 {
        font-size: 1.125rem;
    }

    .screenshot-caption p {
        font-size: 0.875rem;
    }

    /* Mobile navigation button sizing */
    .project-nav .nav-brand .btn,
    .project-nav .nav-next .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .project-nav .nav-center .btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    .project-nav .nav-disabled {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
}

/* Image Lightbox */
.image-lightbox {
    position: fixed;
    inset: 0;
    z-index: 3000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background-color: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    animation: fadeIn 0.3s ease;
}

.image-lightbox.active {
    display: flex;
}

.lightbox-content {
    position: relative;
    max-width: 95vw;
    max-height: 95vh;
    animation: zoomIn 0.3s ease;
}

.lightbox-content img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 80px rgba(96, 165, 250, 0.4);
}

.lightbox-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(239, 68, 68, 0.9);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    font-size: 2.5rem;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    z-index: 10;
    font-weight: 300;
    line-height: 1;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.lightbox-close:hover {
    background: rgba(220, 38, 38, 1);
    border-color: #fff;
    transform: rotate(90deg) scale(1.1);
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.6);
}

.lightbox-caption {
    position: absolute;
    bottom: -60px;
    left: 0;
    right: 0;
    text-align: center;
    color: #e2e8f0;
    font-size: 1rem;
    background: rgba(0, 0, 0, 0.5);
    padding: 12px;
    border-radius: 8px;
    backdrop-filter: blur(10px);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@media (max-width: 768px) {
    .lightbox-close {
        top: 10px;
        right: 10px;
        width: 50px;
        height: 50px;
        font-size: 2rem;
    }

    .lightbox-caption {
        position: static;
        margin-top: 16px;
    }
}

/* ===================================
   Bottom Navigation
   =================================== */
.bottom-nav {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border-default);
    padding: var(--spacing-2xl) 0;
    margin-top: var(--spacing-3xl);
}

.bottom-nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
}

.bottom-nav-prev,
.bottom-nav-next {
    flex: 1;
}

.bottom-nav-prev {
    text-align: left;
}

.bottom-nav-next {
    text-align: right;
}

.bottom-nav-center {
    flex: 0 0 auto;
}

.nav-disabled {
    color: var(--color-text-tertiary);
    font-weight: 500;
    opacity: 0.5;
    cursor: not-allowed;
    padding: 10px 20px;
    font-size: 1rem;
}

/* Bottom Navigation Button Sizing - Previous/Next larger than Back to Portfolio */
.bottom-nav-prev .btn,
.bottom-nav-next .btn {
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
}

.bottom-nav-center .btn {
    padding: 8px 18px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Responsive Bottom Nav */
@media (max-width: 768px) {
    .bottom-nav-container {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .bottom-nav-prev,
    .bottom-nav-next,
    .bottom-nav-center {
        width: 100%;
        text-align: center;
    }

    .bottom-nav-prev {
        order: 2;
    }

    .bottom-nav-center {
        order: 1;
    }

    .bottom-nav-next {
        order: 3;
    }

    /* Mobile bottom navigation button sizing */
    .bottom-nav-prev .btn,
    .bottom-nav-next .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .bottom-nav-center .btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    .nav-disabled {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
}