/* style.css */
/* Core Design Tokens & UI Styles for YABP Showcase Gallery */

:root {
    --bg-primary: #f5f5f7;
    --bg-card: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.72);
    --text-primary: #1d1d1f;
    --text-secondary: #515154;
    --text-tertiary: #6e6e73;
    --accent: #0071e3;
    --accent-hover: #0077ed;
    --accent-subtle: #e8f2fd;
    --border-subtle: rgba(0, 0, 0, 0.08);
    --border-card: rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.02), 0 2px 6px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.03), 0 2px 6px rgba(0, 0, 0, 0.02);
    --shadow-lg: 0 16px 32px rgba(0, 0, 0, 0.04), 0 6px 12px rgba(0, 0, 0, 0.03);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --radius-pill: 980px;
    --font-stack: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition-smooth: 0.25s cubic-bezier(0.25, 0.1, 0.25, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-stack);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.5;
    letter-spacing: -0.011em;
    position: relative;
    overflow-x: hidden;
    transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

/* Ambient background glow */
body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 1200px;
    height: 500px;
    background: radial-gradient(circle at 50% 0%, rgba(0, 113, 227, 0.05), transparent 70%);
    z-index: 0;
    pointer-events: none;
    transition: background var(--transition-smooth);
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition-smooth);
}
a:hover {
    color: var(--accent-hover);
}

/* ─── Floating Header ──────────────── */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: var(--bg-glass);
    border-bottom: 1px solid var(--border-subtle);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    transition: background-color var(--transition-smooth), border-color var(--transition-smooth);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    cursor: pointer;
}

.nav-logo {
    height: 28px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.03));
    transition: transform 0.3s ease;
}
.nav-brand:hover .nav-logo {
    transform: scale(1.06);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

.theme-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-smooth);
}
.theme-btn:hover {
    background: var(--border-subtle);
    color: var(--text-primary);
    transform: scale(1.04);
}

.theme-btn .ri-sun-line {
    display: none;
}

.dark-mode .theme-btn .ri-moon-line {
    display: none;
}
.dark-mode .theme-btn .ri-sun-line {
    display: block;
}

.btn-contribute-nav {
    padding: 7px 16px;
    border-radius: var(--radius-pill);
    background: var(--text-primary);
    color: var(--bg-primary);
    font-size: 0.85rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all var(--transition-smooth);
}
.btn-contribute-nav:hover {
    color: var(--bg-primary);
    transform: scale(1.03);
    opacity: 0.9;
}

/* ─── Layout Containers ────────────── */
.container {
    max-width: 1040px;
    width: 100%;
    margin: 0 auto;
    padding: 90px 20px 40px;
    position: relative;
    z-index: 1;
    flex-grow: 1;
}

/* ─── Hero Section ─────────────────── */
.hero {
    text-align: center;
    padding: 30px 0 45px;
    max-width: 660px;
    margin: 0 auto;
    animation: fadeInUp 0.7s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.verified-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 12px;
    border-radius: var(--radius-pill);
    background: var(--accent-subtle);
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid rgba(0, 113, 227, 0.1);
    margin-bottom: 20px;
}
.verified-icon {
    font-size: 0.95rem;
}

.hero-title {
    font-size: clamp(2.6rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.05;
    color: var(--text-primary);
    margin-bottom: 12px;
}
.hero-title span {
    color: var(--accent);
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 12px;
    letter-spacing: -0.015em;
}

.hero-description {
    font-size: 0.975rem;
    color: var(--text-tertiary);
    line-height: 1.55;
    margin-bottom: 30px;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 12px 24px;
    border-radius: var(--radius-pill);
    background: var(--accent);
    color: #ffffff;
    font-size: 0.9rem;
    font-weight: 500;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 113, 227, 0.15);
    transition: all var(--transition-smooth);
}
.btn-primary:hover,
.btn-primary:focus {
    color: #ffffff;
    background: var(--accent-hover);
    transform: translateY(-1.5px);
    box-shadow: 0 6px 16px rgba(0, 113, 227, 0.25);
}
.btn-primary:active {
    color: #ffffff;
    transform: translateY(0);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 12px 24px;
    border-radius: var(--radius-pill);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid var(--border-subtle);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-smooth);
}
.btn-secondary:hover,
.btn-secondary:focus {
    color: var(--text-primary);
    background: var(--bg-primary);
    transform: translateY(-1.5px);
    border-color: var(--text-tertiary);
}

/* ─── Two-Column Grid Layout ──────── */
.content-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    margin-top: 20px;
    align-items: start;
}

@media (min-width: 1024px) {
    .content-layout {
        grid-template-columns: 1.6fr 1fr;
    }
    .sidebar-section {
        position: sticky;
        top: 84px;
    }
}

/* ─── Gallery Section ──────────────── */
.gallery-section {
    width: 100%;
    animation: fadeInUp 0.7s 0.15s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.gallery-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.gallery-title-area {
    display: flex;
    align-items: center;
    gap: 8px;
}
.gallery-title {
    font-size: 1.35rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}
.gallery-count {
    background: var(--accent-subtle);
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-pill);
}

.gallery-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
}

@media (min-width: 600px) {
    .gallery-controls {
        width: auto;
        flex-grow: 1;
        max-width: 440px;
        justify-content: flex-end;
    }
}

/* Search input with cancel button */
.search-wrapper {
    position: relative;
    flex-grow: 1;
}
.search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-size: 0.95rem;
    pointer-events: none;
}
.search-input {
    width: 100%;
    padding: 9px 36px 9px 34px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    background: var(--bg-card);
    color: var(--text-primary);
    font-family: var(--font-stack);
    font-size: 0.85rem;
    outline: none;
    transition: all var(--transition-smooth);
}
.search-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.12);
}

.search-clear-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2px;
    border-radius: 50%;
    opacity: 0;
    pointer-events: none;
    z-index: 2;
    transition: all var(--transition-smooth);
}
.search-wrapper.has-text .search-clear-btn {
    opacity: 0.65;
    pointer-events: auto;
}
.search-clear-btn:hover {
    opacity: 1 !important;
    color: var(--text-primary);
}

/* Custom Dropdown Styling (Apple HIG style) */
.custom-select-wrapper {
    position: relative;
    user-select: none;
    width: 155px;
    flex-shrink: 0;
}

@media (max-width: 600px) {
    .custom-select-wrapper {
        width: 100%;
    }
}

.custom-select-trigger {
    width: 100%;
    padding: 9px 14px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    background: var(--bg-card);
    color: var(--text-primary);
    font-family: var(--font-stack);
    font-size: 0.85rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    outline: none;
    transition: all var(--transition-smooth);
}
.custom-select-trigger:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.12);
}

.custom-select-trigger i {
    font-size: 1rem;
    transition: transform var(--transition-smooth);
    color: var(--text-tertiary);
}

.custom-select-wrapper.open .custom-select-trigger i {
    transform: rotate(180deg);
}

.custom-select-options {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    background: var(--bg-glass);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 5px;
    list-style: none;
    z-index: 10;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.97);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
}

.custom-select-wrapper.open .custom-select-options {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.custom-select-option {
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    outline: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.15s ease;
}

.custom-select-option:hover,
.custom-select-option:focus {
    background: rgba(0, 113, 227, 0.08);
    color: var(--accent);
}

.custom-select-option.active {
    background: var(--accent);
    color: #ffffff;
}

.custom-select-option.active::after {
    content: '✓';
    font-size: 0.85rem;
    font-weight: bold;
}

/* Projects Card Grid */
.project-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 16px;
}

@media (min-width: 600px) and (max-width: 1023px) {
    .project-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.project-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-card);
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
    min-width: 0;
}
.project-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: rgba(0, 113, 227, 0.15);
}

.project-meta {
    margin-bottom: 10px;
    min-width: 0;
}

.project-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 4px;
    min-width: 0;
}

.project-name {
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: -0.015em;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.project-date {
    font-size: 0.72rem;
    color: var(--text-tertiary);
    margin-bottom: 8px;
    display: inline-block;
}

.project-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.project-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border-subtle);
}

.project-badge-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.7rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

.project-links {
    display: flex;
    gap: 8px;
}

.card-icon-link {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--bg-primary);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    transition: all var(--transition-smooth);
}
.card-icon-link:hover {
    background: var(--accent-subtle);
    color: var(--accent);
    transform: scale(1.06);
}
.card-icon-link.github:hover {
    background: #24292e;
    color: #ffffff;
}
.dark-mode .card-icon-link.github:hover {
    background: #ffffff;
    color: #24292e;
}

/* Loading, Error, Empty States */
.state-container {
    grid-column: 1 / -1;
    padding: 50px 20px;
    text-align: center;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-card);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}
.state-container i {
    font-size: 2rem;
    color: var(--text-tertiary);
}
.state-container p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-subtle);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ─── Sidebar Guidelines Section ───── */
.sidebar-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
    animation: fadeInUp 0.7s 0.25s cubic-bezier(0.16, 1, 0.3, 1) both;
    min-width: 0;
    width: 100%;
}

.guideline-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-card);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    min-width: 0;
    width: 100%;
}

.guideline-title {
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.guideline-steps {
    list-style: none;
}
.guideline-steps li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 12px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.45;
}
.guideline-steps li::before {
    content: attr(data-step);
    position: absolute;
    left: 0;
    top: 2px;
    width: 16px;
    height: 16px;
    background: var(--accent-subtle);
    color: var(--accent);
    font-size: 0.68rem;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.guideline-steps li:last-child {
    margin-bottom: 0;
}

.badge-preview-area {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-width: 0;
    width: 100%;
}

.badge-demo {
    padding: 12px;
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-subtle);
    transition: background-color var(--transition-smooth);
}

.badge-demo img {
    height: 48px;
    width: 48px;
    border-radius: 4px;
    box-shadow: var(--shadow-sm);
}

.code-block-wrapper {
    position: relative;
    background: #1e1e1e;
    border-radius: var(--radius-md);
    overflow: hidden;
    min-width: 0;
    width: 100%;
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #2d2d2d;
    padding: 6px 10px;
    color: #8c8c8c;
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
}

.code-btn-copy {
    background: transparent;
    border: none;
    color: #8c8c8c;
    cursor: pointer;
    font-size: 0.8rem;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: color var(--transition-smooth);
}
.code-btn-copy:hover {
    color: #ffffff;
}

pre {
    padding: 10px;
    overflow-x: auto;
    max-width: 100%;
    color: #d4d4d4;
    font-family: 'SF Mono', Consolas, Monaco, monospace;
    font-size: 0.72rem;
    line-height: 1.35;
    white-space: pre;
    -webkit-overflow-scrolling: touch;
}
pre::-webkit-scrollbar {
    height: 4px;
}
pre::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 2px;
}

/* ─── Verification Modal ────────────── */
.verify-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.verify-modal.active {
    opacity: 1;
    visibility: visible;
}

.verify-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-card);
    padding: 36px 28px;
    max-width: 440px;
    width: 100%;
    text-align: center;
    box-shadow: var(--shadow-lg);
    transform: scale(0.95);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.verify-modal.active .verify-card {
    transform: scale(1);
}

.verify-brand-logo {
    height: 56px;
    width: auto;
    margin-bottom: 16px;
    filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.04));
    transition: transform 0.3s ease;
}
.verify-brand-logo:hover {
    transform: scale(1.05);
}

.verify-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.verify-status-badge.success {
    background: rgba(52, 199, 89, 0.12);
    color: #34c759;
    border: 1px solid rgba(52, 199, 89, 0.15);
}

.verify-status-badge.error {
    background: rgba(255, 59, 48, 0.12);
    color: #ff3b30;
    border: 1px solid rgba(255, 59, 48, 0.15);
}

.verify-title {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.verify-message {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 28px;
    width: 100%;
}

.verify-url-text {
    font-family: 'SF Mono', Consolas, Monaco, monospace;
    background: var(--bg-primary);
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    display: block;
    word-break: break-all;
    margin-top: 10px;
    border: 1px solid var(--border-subtle);
    color: var(--text-tertiary);
}

/* ─── Footer ───────────────────────── */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-subtle);
    padding: 30px 20px;
    text-align: center;
    margin-top: 40px;
    transition: background-color var(--transition-smooth), border-color var(--transition-smooth);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.footer-link {
    font-size: 0.78rem;
    color: var(--text-tertiary);
    font-weight: 500;
}
.footer-link:hover {
    color: var(--text-primary);
}

.footer-copyright {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

/* ─── Dark Mode Overrides ──────────── */
.dark-mode {
    --bg-primary: #000000;
    --bg-card: #1c1c1e;
    --bg-glass: rgba(28, 28, 30, 0.75);
    --text-primary: #f5f5f7;
    --text-secondary: #d2d2d7;
    --text-tertiary: #98989d;
    --accent: #0a84ff;
    --accent-hover: #339af0;
    --accent-subtle: rgba(10, 132, 255, 0.12);
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-card: rgba(255, 255, 255, 0.04);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.15), 0 2px 6px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.2), 0 2px 6px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 16px 32px rgba(0, 0, 0, 0.35), 0 6px 12px rgba(0, 0, 0, 0.2);
}

.dark-mode body::before {
    background: radial-gradient(circle at 50% 0%, rgba(10, 132, 255, 0.1), transparent 70%);
}

.dark-mode .custom-select-options {
    background: var(--bg-glass);
    border-color: var(--border-subtle);
}
.dark-mode .custom-select-option:hover,
.dark-mode .custom-select-option:focus {
    background: rgba(10, 132, 255, 0.12);
    color: var(--accent);
}
.dark-mode .custom-select-option.active {
    background: var(--accent);
    color: #ffffff;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Breakpoints & Mobile Fixes */
@media (max-width: 768px) {
    .navbar {
        padding: 0 16px;
    }
    .container {
        padding: 84px 16px 30px;
    }
    .hero {
        padding: 10px 0 30px;
    }
    .gallery-controls {
        flex-direction: column;
        align-items: stretch;
    }
    .search-wrapper {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 80px 12px 24px;
    }
    .navbar {
        padding: 0 12px;
    }
    .btn-contribute-nav span {
        display: none;
    }
    .btn-contribute-nav {
        padding: 8px;
        border-radius: 50%;
        width: 34px;
        height: 34px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .hero-title {
        font-size: 2.3rem;
    }
    .hero-subtitle {
        font-size: 0.95rem;
        margin-bottom: 8px;
    }
    .hero-description {
        font-size: 0.88rem;
        margin-bottom: 24px;
    }
    .btn-primary, .btn-secondary {
        padding: 10px 20px;
        font-size: 0.85rem;
        width: 100%;
        justify-content: center;
    }
    .project-card {
        padding: 16px;
    }
    .project-name {
        font-size: 0.98rem;
    }
    .project-description {
        font-size: 0.8rem;
    }
    .guideline-card {
        padding: 18px;
    }
    .guideline-title {
        font-size: 1.05rem;
    }
    .guideline-steps li {
        font-size: 0.8rem;
    }
}