/* ============================================
   AlexToolbox — Main Stylesheet
   Minimalist, high contrast, accessible
   ============================================ */

/* --- CSS Variables --- */
:root {
    --bg:          #0D0D0D;
    --bg-card:     #1A1A2E;
    --bg-card-hover: #242444;
    --text:        #FFFFFF;
    --text-muted:  #B0B0B0;
    --accent:      #00E5FF;
    --accent-hover:#00B8D4;
    --red:         #FF3D00;
    --green:       #76FF03;
    --yellow:      #FFD600;
    --font:        'Inter', system-ui, -apple-system, sans-serif;
    --radius:      12px;
    --radius-sm:   8px;
    --shadow:      0 4px 24px rgba(0,0,0,0.4);
    --focus:       0 0 0 3px var(--accent);
    --max-width:   1200px;
    --transition:  0.2s ease;
}

/* --- Reset --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* --- Base --- */
html {
    font-size: 20px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

main {
    flex: 1;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

/* --- Focus (accessibility) --- */
*:focus-visible {
    outline: none;
    box-shadow: var(--focus);
    border-radius: var(--radius-sm);
}

/* --- Skip link --- */
.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--bg);
    padding: 12px 24px;
    font-weight: 700;
    font-size: 1rem;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    z-index: 9999;
    transition: top var(--transition);
}

.skip-link:focus {
    top: 0;
}

/* --- Container --- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Header --- */
.site-header {
    background: var(--bg-card);
    border-bottom: 2px solid var(--accent);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-logo {
    text-decoration: none;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--text);
    letter-spacing: -0.5px;
}

.logo-text:hover {
    color: var(--accent);
}

/* --- Language Switcher --- */
.lang-switcher {
    display: flex;
    gap: 4px;
    background: var(--bg);
    border-radius: var(--radius-sm);
    padding: 4px;
}

.lang-btn {
    padding: 8px 16px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: all var(--transition);
}

.lang-btn:hover {
    color: var(--text);
    text-decoration: none;
}

.lang-btn.active {
    background: var(--accent);
    color: var(--bg);
}

/* --- Hero / Page Title --- */
.hero {
    text-align: center;
    padding: 60px 0 40px;
}

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.hero-tagline {
    font-size: 1.3rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* --- Category Filter --- */
.category-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    padding: 24px 0 40px;
}

.filter-btn {
    padding: 10px 24px;
    border: 2px solid var(--bg-card);
    border-radius: 50px;
    background: var(--bg-card);
    color: var(--text-muted);
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}

.filter-btn:hover {
    border-color: var(--accent);
    color: var(--text);
}

.filter-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg);
}

/* --- Program Grid --- */
.program-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    padding-bottom: 60px;
}

/* --- Program Card --- */
.program-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
    display: flex;
    flex-direction: column;
    border: 2px solid transparent;
}

.program-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--accent);
}

.card-image {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    background: var(--bg);
}

.card-image-placeholder {
    width: 100%;
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, var(--bg-card) 0%, #2a2a4a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--accent);
}

.card-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.badge-new {
    background: var(--green);
    color: var(--bg);
}

.badge-updated {
    background: var(--yellow);
    color: var(--bg);
}

.category-tag {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
}

.card-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
    flex: 1;
    margin-bottom: 20px;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.card-downloads {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition);
    min-height: 48px;
    min-width: 48px;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg);
}

.btn-primary:hover {
    background: var(--accent-hover);
    color: var(--bg);
    text-decoration: none;
}

.btn-secondary {
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
}

.btn-secondary:hover {
    background: var(--accent);
    color: var(--bg);
    text-decoration: none;
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.2rem;
    border-radius: var(--radius);
}

.btn-external::after {
    content: ' ↗';
}

/* --- Program Detail Page --- */
.program-detail {
    padding: 40px 0 60px;
}

.program-header {
    margin-bottom: 40px;
}

.program-back {
    display: inline-block;
    font-size: 0.9rem;
    margin-bottom: 20px;
    color: var(--text-muted);
}

.program-back:hover {
    color: var(--accent);
}

.program-title {
    font-size: 2.8rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.program-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    align-items: center;
    margin-bottom: 24px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.meta-item strong {
    color: var(--text);
}

.program-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 40px;
}

.download-count {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 8px;
}

/* --- Screenshots Gallery --- */
.screenshots-section {
    margin-bottom: 40px;
}

.screenshots-section h2 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}

.screenshot-item {
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 2px solid var(--bg-card);
    transition: border-color var(--transition);
    cursor: pointer;
}

.screenshot-item:hover {
    border-color: var(--accent);
}

.screenshot-item img {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
}

/* --- Description --- */
.description-section {
    margin-bottom: 40px;
}

.description-section h2 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.description-content {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-muted);
    max-width: 800px;
}

.description-content p {
    margin-bottom: 16px;
}

/* --- Video Section --- */
.video-section {
    margin-bottom: 40px;
}

.video-section h2 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.video-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    aspect-ratio: 16/9;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--bg-card);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* --- Changelog --- */
.changelog-section {
    margin-bottom: 40px;
}

.changelog-section h2 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.changelog-version {
    font-size: 0.9rem;
    color: var(--accent);
    font-weight: 600;
}

.changelog-content {
    background: var(--bg-card);
    border-left: 4px solid var(--accent);
    padding: 24px;
    border-radius: 0 var(--radius) var(--radius) 0;
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-muted);
    max-width: 800px;
}

/* --- Previous Versions --- */
.versions-section {
    margin-bottom: 40px;
}

.versions-section h2 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.versions-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 800px;
}

.version-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    background: var(--bg-card);
    padding: 16px 24px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    transition: border-color var(--transition);
}

.version-item:hover {
    border-color: var(--bg-card-hover);
}

.version-info {
    flex: 1;
}

.version-number {
    font-size: 1.1rem;
    color: var(--text);
    margin-right: 12px;
}

.version-date {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.version-notes {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
    line-height: 1.4;
}

/* --- Download Buttons (dual: direct + Drive) --- */
.download-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.btn-drive {
    gap: 6px;
}

.btn-drive svg {
    flex-shrink: 0;
}

.version-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.btn-small-dl {
    padding: 8px 16px;
    font-size: 0.85rem;
    white-space: nowrap;
}

@media (max-width: 768px) {
    .version-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .version-actions {
        width: 100%;
        flex-direction: column;
    }

    .btn-small-dl {
        width: 100%;
        text-align: center;
    }

    .download-buttons {
        width: 100%;
    }

    .download-buttons form,
    .download-buttons .btn-drive {
        width: 100%;
    }

    .download-buttons form .btn {
        width: 100%;
    }
}

/* --- Rate Limit Message --- */
.rate-limit-message {
    text-align: center;
    padding: 60px 24px;
}

.rate-limit-message h1 {
    font-size: 2rem;
    color: var(--yellow);
    margin-bottom: 16px;
}

.rate-limit-message p {
    font-size: 1.1rem;
    color: var(--text-muted);
}

.rate-limit-message .countdown {
    font-size: 3rem;
    font-weight: 900;
    color: var(--accent);
    margin: 24px 0;
}

/* --- Error Page --- */
.error-page {
    text-align: center;
    padding: 80px 24px;
}

.error-page h1 {
    font-size: 4rem;
    color: var(--red);
    margin-bottom: 16px;
}

.error-page p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 32px;
}

/* --- Footer --- */
.site-footer {
    background: var(--bg-card);
    border-top: 2px solid var(--bg-card-hover);
    padding: 40px 0;
    margin-top: auto;
}

.footer-inner {
    text-align: center;
}

.footer-text {
    font-size: 1rem;
    color: var(--text);
    margin-bottom: 8px;
}

.footer-accessibility {
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 8px;
}

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

/* --- Lightbox (simple) --- */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.95);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90vw;
    max-height: 90vh;
    border-radius: var(--radius);
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 2rem;
    color: var(--text);
    background: none;
    border: none;
    cursor: pointer;
    min-width: 48px;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* --- Turnstile --- */
.turnstile-wrapper {
    margin: 16px 0;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    html {
        font-size: 18px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

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

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

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

    .header-inner {
        gap: 12px;
    }

    .logo-text {
        font-size: 1.4rem;
    }

    .btn-large {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 40px 0 24px;
    }

    .category-filter {
        padding: 16px 0 24px;
    }

    .card-body {
        padding: 16px;
    }
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}