/* ── Reset ─────────────────────────────────── */

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

/* ── Tokens ────────────────────────────────── */

:root,
[data-theme="light"] {
    --bg: #fafafa;
    --surface: #ffffff;
    --text: #111111;
    --text-2: #555555;
    --text-3: #888888;
    --border: #e5e5e5;
    --border-hover: #c5c5c5;
    --accent: #e8590c;
    --accent-hover: #d14b08;
    --accent-fg: #ffffff;
    --badge-live-bg: #ecfdf5;
    --badge-live-text: #047857;
    --badge-live-border: #a7f3d0;
    --badge-dev-bg: #fffbeb;
    --badge-dev-text: #92400e;
    --badge-dev-border: #fde68a;
    --nav-bg: rgba(250, 250, 250, 0.82);
    --overlay-bg: rgba(0, 0, 0, 0.3);
    color-scheme: light;
}

[data-theme="dark"] {
    --bg: #0a0a0a;
    --surface: #141414;
    --text: #ececec;
    --text-2: #999999;
    --text-3: #666666;
    --border: #222222;
    --border-hover: #383838;
    --accent: #f97316;
    --accent-hover: #fb923c;
    --accent-fg: #000000;
    --badge-live-bg: rgba(4, 120, 87, 0.12);
    --badge-live-text: #34d399;
    --badge-live-border: rgba(52, 211, 153, 0.25);
    --badge-dev-bg: rgba(146, 64, 14, 0.12);
    --badge-dev-text: #fbbf24;
    --badge-dev-border: rgba(251, 191, 36, 0.2);
    --nav-bg: rgba(10, 10, 10, 0.82);
    --overlay-bg: rgba(0, 0, 0, 0.6);
    color-scheme: dark;
}

/* ── Base ──────────────────────────────────── */

html {
    scroll-behavior: smooth;
    background: var(--bg);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    transition: background 0.3s, color 0.3s;
}

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

a {
    color: inherit;
    text-decoration: none;
}

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

ul, ol {
    list-style: none;
}

/* ── Scrollbar ─────────────────────────────── */

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }

/* ── Navigation ────────────────────────────── */

.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s;
}

.site-nav.scrolled {
    border-bottom-color: var(--border);
}

.nav-inner {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: -0.2px;
    color: var(--text);
    transition: opacity 0.2s;
}

.nav-brand:hover { opacity: 0.7; }

.nav-brand img {
    border-radius: 6px;
}

.nav-center {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-2);
    transition: color 0.15s;
    padding: 6px 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text);
}

.nav-promo {
    color: var(--accent) !important;
    font-weight: 600;
}

.nav-promo:hover {
    opacity: 0.8;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Icon button (theme toggle) */

.icon-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: none;
    color: var(--text-2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 8px;
    transition: color 0.15s, background 0.15s;
}

.icon-btn:hover {
    color: var(--text);
    background: var(--border);
}

[data-theme="light"] .icon-moon,
[data-theme="dark"] .icon-sun {
    display: none;
}

[data-theme="light"] .icon-sun,
[data-theme="dark"] .icon-moon {
    display: block;
}

/* Hamburger */

.menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    border: none;
    background: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: background 0.15s;
}

.menu-btn:hover {
    background: var(--border);
}

.menu-btn span {
    display: block;
    height: 1.5px;
    background: var(--text);
    border-radius: 1px;
    transition: transform 0.25s, opacity 0.25s;
    transform-origin: center;
}

.menu-btn[aria-expanded="true"] span:first-child {
    transform: translateY(3.25px) rotate(45deg);
}

.menu-btn[aria-expanded="true"] span:last-child {
    transform: translateY(-3.25px) rotate(-45deg);
}

/* Mobile menu */

.mobile-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--overlay-bg);
    z-index: 90;
    opacity: 0;
    transition: opacity 0.25s;
}

.mobile-overlay.visible {
    display: block;
    opacity: 1;
}

.mobile-menu {
    position: fixed;
    top: 56px;
    right: 0;
    width: 260px;
    bottom: 0;
    background: var(--bg);
    border-left: 1px solid var(--border);
    z-index: 95;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.32, 0.72, 0, 1);
}

.mobile-menu.open {
    transform: translateX(0);
}

.mobile-menu hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 12px 0;
}

.mobile-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-2);
    padding: 10px 12px;
    border-radius: 8px;
    transition: background 0.15s, color 0.15s;
}

.mobile-link:hover {
    background: var(--surface);
    color: var(--text);
}

/* ── Hero ──────────────────────────────────── */

.hero {
    max-width: 1000px;
    margin: 0 auto;
    padding: 140px 24px 80px;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.2rem);
    font-weight: 600;
    letter-spacing: -1.5px;
    line-height: 1.1;
    margin-bottom: 16px;
}

.hero-sub {
    font-size: clamp(1rem, 2.2vw, 1.15rem);
    color: var(--text-2);
    max-width: 520px;
    margin: 0 auto 36px;
    line-height: 1.6;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--accent-fg);
    background: var(--accent);
    padding: 10px 22px;
    border-radius: 8px;
    transition: background 0.15s, transform 0.15s;
}

.hero-cta:hover {
    background: var(--accent-hover);
}

.hero-cta:active {
    transform: scale(0.98);
}

/* ── Section ───────────────────────────────── */

.section {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px 100px;
}

.section-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-3);
    margin-bottom: 40px;
}

/* ── App Cards ─────────────────────────────── */

.apps-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.app-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px;
    display: flex;
    flex-direction: column;
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.app-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
    transform: translateY(-2px);
}

.app-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 14px;
}

.app-icon {
    border-radius: 10px;
    flex-shrink: 0;
    object-fit: cover;
}

.app-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: -0.2px;
}

.badge {
    display: inline-block;
    font-size: 0.68rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 4px;
    letter-spacing: 0.2px;
    margin-top: 2px;
}

.badge.live {
    background: var(--badge-live-bg);
    color: var(--badge-live-text);
    border: 1px solid var(--badge-live-border);
}

.badge.dev {
    background: var(--badge-dev-bg);
    color: var(--badge-dev-text);
    border: 1px solid var(--badge-dev-border);
}

.app-tagline {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-2);
    margin-bottom: 10px;
}

.app-desc {
    font-size: 0.875rem;
    color: var(--text-2);
    line-height: 1.6;
    margin-bottom: 18px;
    flex-grow: 1;
}

.app-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 20px;
}

.app-stack span {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-3);
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 3px 8px;
    border-radius: 4px;
}

.app-links {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.app-links a {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-3);
    transition: color 0.15s;
}

.app-links a:hover {
    color: var(--text);
}

.app-links .link-primary {
    color: var(--accent);
}

.app-links .link-primary:hover {
    color: var(--accent-hover);
}

/* ── Contact ───────────────────────────────── */

.section-contact {
    padding-bottom: 80px;
}

.contact-block {
    text-align: center;
}

.contact-lead {
    font-size: 0.95rem;
    color: var(--text-2);
    margin-bottom: 20px;
}

.email-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--accent);
    padding: 10px 20px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    transition: border-color 0.15s, background 0.15s;
}

.email-link:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.social-row {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 24px;
}

.social-link {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-3);
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    transition: color 0.15s, border-color 0.15s;
}

.social-link:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--bg);
}

/* ── Footer ────────────────────────────────── */

.site-footer {
    border-top: 1px solid var(--border);
    padding: 40px 24px;
}

.footer-inner {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-links a {
    font-size: 0.8rem;
    color: var(--text-3);
    transition: color 0.15s;
}

.footer-links a:hover {
    color: var(--text);
}

.footer-socials {
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--text-3);
}

/* ── Responsive ────────────────────────────── */

[data-theme="dark"] .app-card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}

@media (max-width: 700px) {
    .nav-center {
        display: none;
    }

    .menu-btn {
        display: flex;
    }

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

    .hero {
        padding: 120px 20px 60px;
    }

    .section {
        padding: 0 20px 80px;
    }

    .footer-inner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 400px) {
    .hero h1 {
        font-size: 2rem;
    }

    .app-card {
        padding: 20px;
    }

    .nav-inner {
        padding: 0 16px;
    }
}