@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap");

/* ===== Color Tokens ===== */
:root {
    --primary-color: #e05297;
    --primary-hover: #c7407f;
    --accent-warm: #f0a060;
    --accent-glow: #ffc971;
    --background-color: #fdf8f3;
    --text-color: #2d1b3d;
    --text-muted: #8b7e97;
    --card-background: #ffffff;
    --sidebar-background: #f6f0f8;
    --sidebar-border: #e8ddf0;
    --hover-color: #fef4fb;
    --text-primary: var(--text-color);
    --link-color: #7c5cbf;
    --star-color: #f0a060;
    --border-color: #ecdfe8;
    --input-background: rgba(45, 27, 61, 0.04);
    --shadow-sm: 0 1px 3px rgba(45, 27, 61, 0.06);
    --shadow-md: 0 4px 16px rgba(45, 27, 61, 0.08);
    --shadow-lg: 0 8px 30px rgba(45, 27, 61, 0.12);
    --shadow-glow: 0 0 20px rgba(224, 82, 151, 0.08);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --gradient-subtle: linear-gradient(135deg, rgba(224, 82, 151, 0.04), rgba(124, 92, 191, 0.04));
}

/* Dark theme */
[data-theme="dark"] {
    --primary-color: #ff7eb3;
    --primary-hover: #ff9ec5;
    --accent-warm: #ffc971;
    --accent-glow: #ffd48a;
    --background-color: #191020;
    --text-color: #ede8f5;
    --text-muted: #8b7e97;
    --card-background: #241b2e;
    --sidebar-background: #1e1528;
    --sidebar-border: #342a40;
    --hover-color: rgba(255, 126, 179, 0.06);
    --text-primary: var(--text-color);
    --link-color: #c4b5fd;
    --star-color: #ffc971;
    --border-color: #342a40;
    --input-background: rgba(255, 255, 255, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.45);
    --shadow-glow: 0 0 24px rgba(255, 126, 179, 0.1);
    --gradient-subtle: linear-gradient(135deg, rgba(255, 126, 179, 0.05), rgba(196, 181, 253, 0.05));
}

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

body {
    font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    letter-spacing: -0.01em;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.65;
    overflow-wrap: break-word;
    word-break: break-word;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== Layout ===== */
.container {
    display: flex;
    min-height: 100vh;
}

/* ===== Top Navigation ===== */
.top-nav {
    background-color: var(--card-background);
    color: var(--text-color);
    padding: 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1001;
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
    background-image: var(--gradient-subtle);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

[data-theme="dark"] .top-nav {
    background-color: rgba(25, 16, 32, 0.85);
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.7rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
}

.nav-content h1 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
    white-space: nowrap;
}

.logo-container {
    height: 36px;
    width: 150px;
    display: flex;
    align-items: center;
}

.nav-logo {
    height: 100%;
    width: 100%;
    object-fit: cover;
}

.logo-text {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-color);
}

/* ===== Search ===== */
.search-box {
    position: relative;
    flex-grow: 1;
    max-width: 480px;
}

.search-box input {
    width: 100%;
    padding: 0.6rem 2.5rem 0.6rem 1.1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background-color: var(--input-background);
    color: var(--text-color);
    font-size: 0.9rem;
    font-family: inherit;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(224, 82, 151, 0.12);
}

[data-theme="dark"] .search-box input:focus {
    box-shadow: 0 0 0 3px rgba(255, 126, 179, 0.15);
}

.search-box input::placeholder {
    color: var(--text-muted);
}

.search-box i {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ===== Theme Controls ===== */
.theme-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.theme-toggle {
    background: var(--input-background);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
}

.theme-toggle:hover {
    background-color: var(--hover-color);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.theme-select {
    background-color: var(--input-background);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition);
}

.theme-select:hover {
    border-color: var(--primary-color);
}

.theme-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(224, 82, 151, 0.12);
}

.theme-select option {
    background-color: var(--card-background);
    color: var(--text-color);
}

/* ===== Sidebar ===== */
.sidebar {
    width: 272px;
    background-color: var(--sidebar-background);
    padding: 1rem 0.75rem;
    position: fixed;
    height: calc(100vh - 55px);
    overflow-y: auto;
    transition: transform 0.3s ease;
    border-right: 1px solid var(--sidebar-border);
    top: 55px;
    touch-action: pan-y pinch-zoom;
    will-change: transform;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    margin-top: 0.75rem;
    padding: 0 0.75rem;
}

.sidebar-header h4 {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.nav-links {
    list-style: none;
}

.nav-links li {
    margin-bottom: 1px;
}

.nav-links a {
    display: flex;
    align-items: center;
    padding: 0.5rem 0.75rem;
    color: var(--text-color);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    font-size: 0.88rem;
    font-weight: 400;
    position: relative;
}

.nav-links a:hover {
    background-color: var(--hover-color);
    color: var(--primary-color);
}

.nav-links a.active {
    background-color: var(--hover-color);
    color: var(--primary-color);
    font-weight: 500;
}

.nav-links a.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--primary-color);
    border-radius: 0 3px 3px 0;
}

.nav-links i {
    margin-right: 0.6rem;
    width: 18px;
    text-align: center;
    font-size: 0.82rem;
    opacity: 0.5;
}

/* Sidebar Scrollbar */
.sidebar::-webkit-scrollbar {
    width: 3px;
}

.sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

.sidebar {
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

/* ===== Main Content ===== */
.main-content {
    margin-left: 272px;
    padding: 2rem 2.5rem;
    padding-top: 80px;
    flex: 1;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    margin-top: 0;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
}

.content-header {
    display: none;
}

.view-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* Main Content Scrollbar */
.main-content::-webkit-scrollbar {
    width: 5px;
}

.main-content::-webkit-scrollbar-track {
    background: transparent;
}

.main-content::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
}

.main-content::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

.main-content {
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

/* ===== Resource Grid ===== */
#resources-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1rem;
    width: 100%;
    max-width: 1100px;
    height: auto;
    min-height: 200px;
    overflow: visible;
}

#resources-container > h2 {
    grid-column: 1 / -1;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-color);
    margin: 1.5rem 0 0.75rem;
    padding-bottom: 0.6rem;
    letter-spacing: -0.03em;
    border-bottom: 2px solid transparent;
    border-image: linear-gradient(90deg, var(--primary-color), var(--accent-warm)) 1;
}

/* ===== Resource Cards ===== */
.resource-card {
    background: var(--card-background);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
}

.resource-card::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: var(--radius-md);
    padding: 1px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-warm));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.resource-card:hover {
    box-shadow: var(--shadow-md), var(--shadow-glow);
    transform: translateY(-2px);
}

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

.resource-header {
    display: grid;
    grid-template-columns: 44px 1fr;
    gap: 12px;
    align-items: start;
}

.resource-favicon {
    width: 44px;
    height: 44px;
    margin: 0;
    grid-row: span 2;
    border-radius: 10px;
    object-fit: cover;
    background-color: var(--input-background);
}

.resource-title {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    line-height: 1.3;
}

.resource-title a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition);
}

.resource-title a:hover {
    color: var(--primary-color);
}

.resource-description {
    margin: 6px 0 0 0;
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.55;
}

.resource-description a {
    color: var(--link-color);
    text-decoration: none;
    font-weight: 500;
}

.resource-description a:hover {
    text-decoration: underline;
}

.resource-stars {
    color: var(--star-color);
    font-size: 0.78rem;
    display: flex;
    align-items: center;
    gap: 4px;
    font-weight: 600;
}

.fa-star {
    color: var(--star-color);
}

.resource-link {
    margin-bottom: 8px;
}

.resource-link a {
    color: var(--link-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.82rem;
    font-weight: 500;
    transition: color var(--transition);
}

.resource-link a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* ===== Category Labels ===== */
.category-label {
    font-size: 0.68rem;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
    margin-bottom: 8px;
    padding: 3px 8px;
    background-color: var(--hover-color);
    border-radius: var(--radius-sm);
    display: inline-block;
}

/* ===== Markdown Content ===== */
.markdown-content {
    padding: 1rem;
    line-height: 1.75;
    overflow-wrap: break-word;
    word-break: break-word;
    grid-column: 1 / -1;
}

.markdown-content a {
    color: var(--link-color);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition);
}

.markdown-content a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.markdown-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
}

.markdown-content pre {
    overflow-x: auto;
    max-width: 100%;
    background: var(--input-background);
    padding: 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    font-size: 0.85rem;
    line-height: 1.6;
}

.markdown-content code {
    overflow-wrap: break-word;
    word-break: break-all;
    font-size: 0.85rem;
    background: var(--input-background);
    padding: 0.15em 0.4em;
    border-radius: 4px;
}

.markdown-content pre code {
    background: none;
    padding: 0;
}

.markdown-content table {
    display: block;
    overflow-x: auto;
    max-width: 100%;
    border-collapse: collapse;
}

.markdown-content th,
.markdown-content td {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    text-align: left;
}

.markdown-content th {
    background: var(--input-background);
    font-weight: 600;
    font-size: 0.9rem;
}

/* ===== Contributors Grid ===== */
.contributors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 16px;
    padding: 1.5rem;
    width: 100%;
    height: auto;
    min-height: 100px;
    justify-items: center;
    overflow: visible;
}

.contributors-grid a {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.72rem;
    text-align: center;
    transition: color var(--transition);
}

.contributors-grid a:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.contributors-grid img {
    border-radius: 50%;
    width: 52px;
    height: 52px;
    transition: all var(--transition);
    margin-bottom: 6px;
    border: 2px solid var(--border-color);
}

.contributors-grid a:hover img {
    transform: scale(1.1);
    border-color: var(--primary-color);
    box-shadow: 0 0 12px rgba(224, 82, 151, 0.2);
}

[data-theme="dark"] .contributors-grid a:hover img {
    box-shadow: 0 0 12px rgba(255, 126, 179, 0.25);
}

.contributors-grid .loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 20px;
    color: var(--text-muted);
    font-style: italic;
}

.resource-card.contributors-card {
    max-width: none;
    width: 100%;
    height: auto;
    min-height: 200px;
}

/* Full-width special elements */
.resource-card.contributors-card,
.no-results,
.error-message {
    grid-column: 1 / -1;
}

/* ===== Status Messages ===== */
.no-results {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
    font-size: 1rem;
}

.error-message {
    padding: 1rem 1.25rem;
    margin: 1rem;
    background-color: #fef2f2;
    border-left: 3px solid #ef4444;
    color: #991b1b;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}

[data-theme="dark"] .error-message {
    background-color: rgba(239, 68, 68, 0.08);
    border-left-color: #f87171;
    color: #fca5a5;
}

/* ===== Dark Mode Heading Accent ===== */
[data-theme="dark"] h3,
[data-theme="dark"] .markdown-content h3 {
    color: var(--accent-warm);
}

/* ===== 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: 0;
}

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

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

/* ===== Footer ===== */
.site-footer {
    background-color: var(--sidebar-background);
    color: var(--text-muted);
    text-align: center;
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.82rem;
    letter-spacing: 0.01em;
}

/* ===== Menu Toggle (Mobile) ===== */
.menu-toggle {
    display: none;
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 1002;
    background-color: var(--card-background);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.4rem 0.6rem;
    cursor: pointer;
    font-size: 1rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.menu-toggle:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* ===== Responsive: Tablet & Below ===== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        position: fixed;
        z-index: 1000;
        touch-action: pan-y pinch-zoom;
        will-change: transform;
        transition: transform 0.3s ease;
        box-shadow: none;
    }

    .sidebar.active {
        transform: translateX(0);
        box-shadow: var(--shadow-lg);
    }

    .sidebar-header {
        margin-top: 4rem;
    }

    .main-content {
        margin-left: 0;
        padding: 1.25rem;
        padding-top: 100px;
        height: auto;
        overflow: visible;
        overscroll-behavior: auto;
        width: 100%;
    }

    .menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        min-width: 44px;
        min-height: 44px;
    }

    .top-nav {
        padding: 0;
    }

    .nav-content {
        display: grid;
        grid-template-columns: auto 1fr auto;
        grid-template-areas:
            "logo . controls"
            "search search search";
        gap: 0.5rem;
        padding: 0.5rem 1rem;
        margin-left: 2.5rem;
        max-width: calc(100% - 2.5rem);
    }

    .nav-content h1 {
        font-size: 1.1rem;
        width: 100%;
        text-align: center;
    }

    .search-box {
        grid-area: search;
        width: 100%;
        max-width: none;
        margin: 0.25rem 0 0 0;
    }

    .nav-links a {
        padding: 0.65rem 0.75rem;
        min-height: 44px;
    }

    .theme-toggle,
    .menu-toggle {
        min-width: 44px;
        min-height: 44px;
    }

    .search-box input {
        min-height: 44px;
    }

    .nav-links a:active,
    .theme-toggle:active,
    .menu-toggle:active {
        opacity: 0.7;
        transition: opacity 0.1s;
    }

    .theme-controls {
        grid-area: controls;
        justify-self: end;
        display: flex;
        gap: 0.5rem;
    }

    .logo-container {
        grid-area: logo;
        height: 30px;
        width: auto;
        max-width: 130px;
    }

    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }
}

/* ===== Responsive: Small Phones ===== */
@media (max-width: 480px) {
    .nav-content {
        gap: 0.3rem;
        padding: 0.3rem 0.75rem;
    }

    .logo-container {
        height: 26px;
        max-width: 110px;
    }

    .theme-select {
        max-width: 90px;
        font-size: 0.75rem;
    }

    .main-content {
        padding: 0.75rem;
        padding-top: 130px;
    }
}

/* ===== Responsive: Single Column Cards ===== */
@media (max-width: 640px) {
    #resources-container {
        grid-template-columns: 1fr;
    }
}

/* ===== Responsive: Spacing ===== */
@media (max-width: 768px) {
    .main-content {
        padding-top: 110px;
    }

    #resources-container h2 {
        margin-top: 0.5rem;
        font-size: 1.3rem;
    }
}