/* ==========================================================================
   XDEV Studio — Homepage stylesheet
   Design system shared with /privacy-policy
   ========================================================================== */

/* 1. Design tokens
   ========================================================================== */
:root {
    --bg: #ffffff;
    --surface: #f8fafc;
    --surface-2: #f1f5f9;
    --border: #e2e8f0;
    --text: #0f172a;
    --text-muted: #64748b;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-soft: #eff6ff;
    --accent-border: #bfdbfe;
    --shadow: 0 1px 3px rgba(15, 23, 42, .04), 0 1px 2px rgba(15, 23, 42, .06);
    --shadow-md: 0 4px 12px rgba(15, 23, 42, .08);
    --shadow-lg: 0 10px 30px -10px rgba(15, 23, 42, .15);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    --transition: .2s cubic-bezier(.4, 0, .2, 1);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0b1220;
        --surface: #111827;
        --surface-2: #1f2937;
        --border: #1f2937;
        --text: #e5e7eb;
        --text-muted: #94a3b8;
        --accent: #60a5fa;
        --accent-hover: #93c5fd;
        --accent-soft: #172554;
        --accent-border: #1e40af;
        --shadow: 0 1px 3px rgba(0, 0, 0, .4), 0 1px 2px rgba(0, 0, 0, .5);
        --shadow-md: 0 4px 12px rgba(0, 0, 0, .5);
        --shadow-lg: 0 10px 30px -10px rgba(0, 0, 0, .6);
    }
}

/* 2. Resets & base
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
    scroll-behavior: smooth;
    scroll-padding-top: 88px;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

/* Accessible focus rings (keyboard nav only) */
:focus { outline: none; }
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}
a:focus-visible, button:focus-visible {
    outline-offset: 4px;
}
.input-group input:focus-visible,
.input-group textarea:focus-visible {
    outline: none;
}

::selection {
    background: var(--accent-soft);
    color: var(--text);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text);
    line-height: 1.2;
    letter-spacing: -.02em;
    font-weight: 700;
}

p { margin: 0; }

/* 3. Utilities
   ========================================================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.text-center { text-align: center; }
.mb-50 { margin-bottom: 50px; }
.mt-20 { margin-top: 20px; }

.section-title {
    font-size: clamp(28px, 4vw, 40px);
    margin-bottom: 16px;
    letter-spacing: -.025em;
}

.section-head {
    max-width: 720px;
    margin: 0 auto 40px;
}
.section-head .section-title { margin-bottom: 10px; }
.section-lede {
    color: var(--text-muted);
    font-size: 17px;
    line-height: 1.6;
    margin: 0;
}

/* Scroll-reveal: sections fade up as they enter the viewport */
[data-reveal] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity .7s cubic-bezier(.2, .6, .2, 1), transform .7s cubic-bezier(.2, .6, .2, 1);
    will-change: opacity, transform;
}
[data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
    [data-reveal] { opacity: 1; transform: none; transition: none; }
}

.subtitle {
    color: var(--text-muted);
    font-size: 17px;
    line-height: 1.7;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

/* 4. Sticky glass header
   ========================================================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, .8);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--border);
}
@media (prefers-color-scheme: dark) {
    .site-header { background: rgba(11, 18, 32, .8); }
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    gap: 16px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    font-weight: 600;
}
.brand-logo:hover { color: var(--text); }
.brand-logo img { height: 36px; width: auto; }

.main-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}
.main-nav a {
    color: var(--text-muted);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition);
}
.main-nav a:hover {
    color: var(--text);
    background: var(--surface);
}
.main-nav a.btn-primary {
    color: #ffffff;
    background: var(--accent);
    padding: 9px 18px;
    margin-left: 6px;
}
.main-nav a.btn-primary:hover {
    background: var(--accent-hover);
    color: #ffffff;
}

/* Mobile menu (CSS-only) */
.nav-toggle { display: none; }
.nav-toggle-label {
    display: none;
    cursor: pointer;
    width: 36px;
    height: 36px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}
.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after {
    display: block;
    background: var(--text);
    height: 2px;
    width: 22px;
    border-radius: 2px;
    position: relative;
    transition: var(--transition);
}
.nav-toggle-label span::before,
.nav-toggle-label span::after {
    content: "";
    position: absolute;
    left: 0;
}
.nav-toggle-label span::before { top: -7px; }
.nav-toggle-label span::after  { top:  7px; }

@media (max-width: 768px) {
    .nav-toggle-label { display: inline-flex; }
    .main-nav {
        position: fixed;
        top: 65px;
        right: 0;
        left: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        align-items: stretch;
        padding: 12px 16px;
        gap: 2px;
        transform: translateY(-110%);
        transition: transform var(--transition);
        box-shadow: var(--shadow-md);
    }
    .nav-toggle:checked ~ .main-nav { transform: translateY(0); }
    .main-nav a { padding: 12px 14px; }
    .main-nav a.btn-primary { margin-left: 0; margin-top: 4px; text-align: center; }
}

/* 5. Hero
   ========================================================================== */
.hero-section {
    position: relative;
    padding: 96px 0 64px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(ellipse 60% 50% at 20% 10%, var(--accent-soft), transparent 60%),
        radial-gradient(ellipse 50% 40% at 90% 80%, var(--accent-soft), transparent 60%);
    opacity: .8;
}

.hero-content {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 48px;
    align-items: center;
}
@media (max-width: 860px) {
    .hero-content { grid-template-columns: 1fr; gap: 32px; text-align: center; }
    .hero-section { padding: 64px 0 48px; }
}

.hero-eyebrow {
    display: inline-block;
    color: var(--accent);
    background: var(--accent-soft);
    border: 1px solid var(--accent-border);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .04em;
    margin-bottom: 16px;
}

.hero-text h1 {
    font-size: clamp(40px, 6vw, 72px);
    letter-spacing: -.03em;
    margin-bottom: 16px;
    line-height: 1.05;
}
.text-gradient {
    background: linear-gradient(135deg, var(--accent) 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero-text .subtitle {
    margin: 0 0 28px;
    font-size: 18px;
}
@media (max-width: 860px) { .hero-text .subtitle { margin-left: auto; margin-right: auto; } }

.store-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
@media (max-width: 860px) { .store-buttons { justify-content: center; } }

.btn-store {
    display: inline-block;
    transition: transform var(--transition), box-shadow var(--transition);
    border-radius: var(--radius-sm);
    overflow: hidden;
}
.btn-store:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-store img { height: 48px; width: auto; }
.sm-buttons .btn-store img { height: 38px; }

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}
.floating-logo {
    max-width: 360px;
    width: 100%;
    filter: drop-shadow(0 20px 40px rgba(15, 23, 42, .15));
    animation: float 6s ease-in-out infinite;
}
.floating-logo.app-icon {
    border-radius: 22%;
    filter: drop-shadow(0 24px 48px rgba(37, 99, 235, .25));
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-12px); }
}

/* 6. Games section
   ========================================================================== */
.games-section { padding: 80px 0; }

.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
}

.game-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    display: flex;
    flex-direction: column;
}
.game-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-border);
}

.game-card-link {
    display: block;
    color: inherit;
    text-decoration: none;
}
.game-card-link:hover { text-decoration: none; color: inherit; }
.game-card-link .game-card { height: 100%; }

.game-card.featured-card {
    border-color: var(--accent-border);
    box-shadow: 0 8px 24px -8px rgba(37, 99, 235, .2);
    position: relative;
}
.game-card.featured-card::after {
    content: "★ Featured";
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--accent);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 4px 8px;
    border-radius: var(--radius-full);
    letter-spacing: .05em;
    box-shadow: 0 4px 12px rgba(37, 99, 235, .35);
    z-index: 2;
}

/* Genre pill on each card */
.genre-tag {
    position: absolute;
    top: 10px;
    left: 10px;
    background: rgba(255, 255, 255, .92);
    color: var(--text);
    font-size: 11px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    letter-spacing: .02em;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: 0 2px 6px rgba(15, 23, 42, .08);
    z-index: 1;
    pointer-events: none;
}
@media (prefers-color-scheme: dark) {
    .genre-tag {
        background: rgba(15, 23, 42, .82);
        color: var(--text);
    }
}

/* Featured card spans 2x2 on wider screens */
@media (min-width: 720px) {
    .game-card-link:has(.featured-card),
    .featured-card {
        grid-column: span 2;
        grid-row: span 2;
    }
    .game-card-link:has(.featured-card) .game-card,
    .featured-card {
        height: 100%;
    }
    .game-card.featured-card .game-info {
        padding: 22px 24px;
        gap: 10px;
    }
    .game-card.featured-card .game-info h3 {
        font-size: 24px;
        letter-spacing: -.02em;
    }
    .game-card.featured-card .genre-tag {
        font-size: 12px;
        padding: 5px 12px;
        top: 14px;
        left: 14px;
    }
    .game-card.featured-card::after {
        font-size: 12px;
        padding: 5px 11px;
        top: 14px;
        right: 14px;
    }

    /* Don't enlarge the icon to fill the 2x2 tile — center a sensible-sized
       app icon on a soft gradient, App Store hero style. */
    .game-card.featured-card .game-media {
        background:
            radial-gradient(ellipse 70% 60% at 30% 25%, rgba(37, 99, 235, .18), transparent 70%),
            radial-gradient(ellipse 60% 50% at 80% 90%, rgba(139, 92, 246, .14), transparent 70%),
            linear-gradient(135deg, var(--accent-soft) 0%, var(--surface) 100%);
        display: grid;
        place-items: center;
        padding: 8%;
    }
    .game-card.featured-card .game-media img {
        width: auto;
        max-width: 62%;
        height: auto;
        max-height: 62%;
        object-fit: contain;
        border-radius: 22%;
        box-shadow:
            0 24px 50px -12px rgba(37, 99, 235, .35),
            0 8px 20px -6px rgba(15, 23, 42, .15);
    }
}

.game-media {
    aspect-ratio: 1 / 1;
    background: var(--surface-2);
    overflow: hidden;
    position: relative;
}
.game-media video,
.game-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.game-media-image {
    background:
        radial-gradient(circle at 30% 30%, var(--accent-soft), transparent 60%),
        var(--surface-2);
    display: flex;
    align-items: center;
    justify-content: center;
}
.game-media-image::after {
    content: "🎮";
    font-size: 64px;
    opacity: .5;
}

.game-info {
    padding: 16px 18px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}
.game-info h3 {
    font-size: 17px;
    margin: 0;
    letter-spacing: -.015em;
}
.game-info p {
    color: var(--text-muted);
    font-size: 15px;
    margin: 0;
    flex: 1;
}
.game-info .store-buttons {
    margin-top: 8px;
}

/* 7. About section
   ========================================================================== */
.about-section {
    padding: 80px 0;
    background: var(--surface);
}
.about-section.dark-bg { background: var(--surface); }

.about-content {
    max-width: 720px;
    margin: 0 auto;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    box-shadow: var(--shadow);
}
@media (max-width: 600px) { .about-content { padding: 32px 24px; } }

.about-content .section-title { margin-bottom: 12px; }
.about-content .lead {
    font-size: 18px;
    color: var(--text);
    margin-bottom: 8px;
}
.about-content p:not(.lead) {
    color: var(--text-muted);
}

.divider {
    height: 1px;
    background: var(--border);
    margin: 28px auto;
    max-width: 80px;
}

.privacy-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent);
    font-weight: 500;
    font-size: 14px;
}
.privacy-link::after {
    content: "→";
    transition: transform var(--transition);
}
.privacy-link:hover::after { transform: translateX(3px); }

/* 8. Contact section
   ========================================================================== */
.contact-section { padding: 80px 0 100px; }

.form-container { max-width: 760px; margin: 0 auto; }

.contact-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow);
}
@media (max-width: 600px) { .contact-form { padding: 28px 20px; } }

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
@media (max-width: 600px) { .form-grid { grid-template-columns: 1fr; } }

.input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.input-group.full-width { grid-column: 1 / -1; }

.input-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
}

.input-group input[type="text"],
.input-group input[type="email"],
.input-group textarea {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    font-size: 15px;
    font-family: inherit;
    color: var(--text);
    transition: border-color var(--transition), box-shadow var(--transition);
    width: 100%;
}
.input-group input::placeholder,
.input-group textarea::placeholder { color: var(--text-muted); opacity: .7; }
.input-group input:focus,
.input-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}
.input-group textarea { resize: vertical; min-height: 120px; }

.checkbox-group {
    flex-direction: row;
    align-items: center;
}
.custom-checkbox {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-muted);
    user-select: none;
}
.custom-checkbox input { position: absolute; opacity: 0; pointer-events: none; }
.checkmark {
    width: 18px;
    height: 18px;
    border: 1.5px solid var(--border);
    border-radius: 5px;
    background: var(--bg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}
.custom-checkbox input:checked + .checkmark {
    background: var(--accent);
    border-color: var(--accent);
}
.custom-checkbox input:checked + .checkmark::after {
    content: "";
    width: 5px;
    height: 9px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg) translate(-1px, -1px);
}

.btn-primary {
    display: inline-block;
    background: var(--accent);
    color: #ffffff;
    border: none;
    border-radius: var(--radius-sm);
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, .25);
}
.btn-primary:active { transform: translateY(0); }

/* 9. Footer
   ========================================================================== */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 32px 0;
    color: var(--text-muted);
    font-size: 14px;
}
.site-footer .footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}
.site-footer p { margin: 0; }
.site-footer a {
    color: var(--text-muted);
    transition: color var(--transition);
}
.site-footer a:hover { color: var(--text); }
@media (max-width: 540px) {
    .site-footer .footer-inner {
        justify-content: center;
        text-align: center;
    }
}

/* 10. Print
   ========================================================================== */
@media print {
    .site-header, .nav-toggle-label, .hero-bg { display: none; }
    body { background: #fff; color: #000; }
}