/* ══════════════════════════════════════════════
   Little Loop — v4 — Final polish
   ══════════════════════════════════════════════ */

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

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

:root {
    --ll-bg: #FAFAF8;
    --ll-bg-alt: #F3F3F0;
    --ll-text: #1a1a2e;
    --ll-text-secondary: #5a5f6d;
    --ll-text-on-dark: #f0f0f0;
    --ll-border: #e5e5e3;
    --ll-accent: #4a4a5a;

    --app-accent: var(--ll-accent);
    --app-accent-dark: #333;
    --app-bg-hero: var(--ll-bg-alt);
    --app-bg-hero-gradient: var(--ll-bg-alt);
    --app-accent-soft: #e5e5e3;
    --app-accent-medium: #d5d5d3;
    --app-feature-bg: #f5f5f3;

    --max-width: 1120px;
    --nav-height: 64px;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 24px;

    /* 8px spacing scale */
    --sp-1: 8px;
    --sp-2: 16px;
    --sp-3: 24px;
    --sp-4: 32px;
    --sp-5: 40px;
    --sp-6: 48px;
    --sp-8: 64px;
    --sp-10: 80px;
    --sp-12: 96px;
    --sp-16: 128px;
}

/* ── App palettes ── */
body.app-frame {
    --app-accent: #6b5ce7;
    --app-accent-dark: #4a3dba;
    --app-bg-hero: #d8d0f0;
    --app-bg-hero-gradient: linear-gradient(160deg, #e8e0ff 0%, #d8d0f0 40%, #c4b8e8 100%);
    --app-accent-soft: rgba(107, 92, 231, 0.1);
    --app-accent-medium: rgba(107, 92, 231, 0.18);
    --app-feature-bg: #f0ecf8;
}

body.app-skyready {
    --app-accent: #d06520;
    --app-accent-dark: #b85518;
    --app-bg-hero: #FFE8D0;
    --app-bg-hero-gradient: linear-gradient(160deg, #FFF0DC 0%, #FFE0C0 40%, #FFD0A0 100%);
    --app-accent-soft: rgba(208, 101, 32, 0.08);
    --app-accent-medium: rgba(208, 101, 32, 0.15);
    --app-feature-bg: #FFF5EC;
}

body.app-tideready {
    --app-accent: #0B3D6B;
    --app-accent-dark: #082d50;
    --app-bg-hero: #c0dcea;
    --app-bg-hero-gradient: linear-gradient(160deg, #d4e8f4 0%, #b8d4e8 40%, #8ebdd6 100%);
    --app-accent-soft: rgba(11, 61, 107, 0.08);
    --app-accent-medium: rgba(11, 61, 107, 0.15);
    --app-feature-bg: #E8F4F8;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
    color: var(--ll-text);
    background: var(--ll-bg);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
    letter-spacing: 0.005em;
}

/* Subtle noise texture overlay */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
}

/* ── Scroll animations ── */
.fade-in {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Navigation ── */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(250, 250, 248, 0.88);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--ll-border);
    height: var(--nav-height);
    display: flex;
    align-items: center;
    padding: 0 var(--sp-3);
}

.nav-inner {
    max-width: var(--max-width);
    width: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--ll-text);
}

.nav-logo {
    width: 28px;
    height: 28px;
}

.nav-wordmark {
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: var(--sp-4);
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--ll-text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
    transition: color 0.2s;
    position: relative;
    padding-bottom: 4px;
}

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

.nav-links a.active {
    color: var(--ll-text);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--app-accent, var(--ll-text));
    border-radius: 1px;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--sp-1);
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--ll-text);
    margin: 5px 0;
    transition: 0.3s;
}

/* ── Hero ── */
.hero {
    min-height: 72vh;
    min-height: 72dvh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--sp-10) var(--sp-3);
    background: var(--app-bg-hero-gradient, var(--app-bg-hero));
}

.hero-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--app-accent);
    background: var(--app-accent-soft);
    padding: 6px var(--sp-2);
    border-radius: 100px;
    margin-bottom: var(--sp-3);
}

.hero h1 {
    font-size: clamp(2.4rem, 6vw, 3.6rem);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.08;
    margin-bottom: var(--sp-3);
    max-width: 640px;
}

.hero .subtitle {
    font-size: clamp(1rem, 2.5vw, 1.1rem);
    color: var(--ll-text-secondary);
    max-width: 460px;
    line-height: 1.65;
    margin-bottom: var(--sp-5);
}

/* ── Sections ── */
.section {
    padding: var(--sp-12) var(--sp-3);
    max-width: var(--max-width);
    margin: 0 auto;
}

.section-alt {
    background: var(--ll-bg-alt);
}

.section-coloured {
    background: var(--app-feature-bg);
}

.section-accent {
    background: var(--app-bg-hero);
}

.section-header {
    text-align: center;
    margin-bottom: var(--sp-6);
}

.section-header h2 {
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: var(--sp-1);
}

.section-header p {
    color: var(--ll-text-secondary);
    max-width: 460px;
    margin: 0 auto;
    font-size: 0.95rem;
}

/* ── App icon images ── */
.app-icon-img {
    border-radius: 22.37%;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.app-icon-img-lg {
    width: 96px;
    height: 96px;
    margin-bottom: var(--sp-2);
}

.app-icon-img-md {
    width: 64px;
    height: 64px;
}

.app-icon-img-sm {
    width: 56px;
    height: 56px;
}

/* ── App Detail Page ── */
.app-hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--sp-1);
}

.app-store-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-1);
    background: var(--ll-text);
    color: white;
    text-decoration: none;
    padding: 12px var(--sp-3);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    transition: opacity 0.2s;
}

.app-store-badge:hover {
    opacity: 0.85;
}

.app-store-badge svg {
    width: 20px;
    height: 20px;
}

.coming-soon-badge {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--app-accent);
    background: var(--app-accent-soft);
    padding: 10px var(--sp-3);
    border-radius: var(--radius-sm);
}

/* ── Screenshot Showcase ── */
.screenshot-showcase {
    padding: var(--sp-8) var(--sp-3) var(--sp-10);
    overflow: hidden;
}

.screenshot-row {
    display: flex;
    justify-content: center;
    gap: var(--sp-3);
    max-width: var(--max-width);
    margin: 0 auto;
    flex-wrap: wrap;
}

.screenshot-item {
    flex: 0 0 auto;
    width: 200px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.14);
    transition: transform 0.4s ease;
}

.screenshot-item:hover {
    transform: translateY(-8px) scale(1.02);
}

.screenshot-item img {
    width: 100%;
    height: auto;
    display: block;
}

/* ── Features Grid ── */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--sp-3);
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--sp-3);
}

.feature {
    text-align: left;
    padding: var(--sp-4);
    background: white;
    border-radius: var(--radius);
    border: 1px solid var(--ll-border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.feature-coloured {
    background: var(--app-accent-soft);
    border-color: var(--app-accent-medium);
}

.feature-icon {
    font-size: 1.5rem;
    margin-bottom: var(--sp-2);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--app-accent-soft);
    border-radius: var(--radius-sm);
}

.feature h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 6px;
    letter-spacing: -0.01em;
}

.feature p {
    color: var(--ll-text-secondary);
    font-size: 0.88rem;
    line-height: 1.55;
}

/* ── Pullquote / accent section ── */
.pullquote-section {
    padding: var(--sp-10) var(--sp-3);
    text-align: center;
    background: var(--app-feature-bg);
}

.pullquote-section blockquote {
    font-size: clamp(1.2rem, 3vw, 1.6rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.4;
    max-width: 560px;
    margin: 0 auto var(--sp-2);
    color: var(--app-accent);
}

.pullquote-section cite {
    font-style: normal;
    font-size: 0.88rem;
    color: var(--ll-text-secondary);
}

/* ── Closing CTA ── */
.closing-cta {
    text-align: center;
    padding: var(--sp-10) var(--sp-3);
    background: var(--app-bg-hero);
}

.closing-cta h2 {
    font-size: clamp(1.4rem, 3.5vw, 1.8rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: var(--sp-2);
}

.closing-cta p {
    font-size: 0.95rem;
    color: var(--ll-text-secondary);
    max-width: 420px;
    margin: 0 auto var(--sp-4);
    line-height: 1.6;
}

/* ── Legal pages ── */
.legal {
    max-width: 680px;
    margin: 0 auto;
    padding: var(--sp-8) var(--sp-3) var(--sp-10);
}

.legal h1 {
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: var(--sp-1);
}

.legal .last-updated {
    color: var(--ll-text-secondary);
    font-size: 0.85rem;
    margin-bottom: var(--sp-5);
}

.legal h2 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-top: var(--sp-5);
    margin-bottom: var(--sp-2);
}

.legal h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-top: var(--sp-3);
    margin-bottom: var(--sp-1);
}

.legal p, .legal li {
    color: var(--ll-text-secondary);
    font-size: 0.92rem;
    line-height: 1.7;
    margin-bottom: var(--sp-2);
}

.legal ul {
    padding-left: 20px;
    margin-bottom: var(--sp-2);
}

/* ── Support page ── */
.support-content {
    max-width: 560px;
    margin: 0 auto;
    text-align: center;
    padding: var(--sp-8) var(--sp-3) var(--sp-10);
}

.support-content h1 {
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: var(--sp-2);
}

.support-content > p {
    color: var(--ll-text-secondary);
    font-size: 1rem;
    margin-bottom: var(--sp-5);
}

.support-email {
    display: inline-block;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--ll-accent);
    text-decoration: none;
    padding: var(--sp-2) var(--sp-4);
    background: var(--ll-bg-alt);
    border-radius: var(--radius-sm);
    border: 1px solid var(--ll-border);
    transition: background 0.2s;
}

.support-email:hover {
    background: var(--ll-border);
}

.support-apps {
    margin-top: var(--sp-6);
}

.support-apps h2 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: var(--sp-3);
}

.support-app-list {
    display: flex;
    justify-content: center;
    gap: var(--sp-3);
    flex-wrap: wrap;
}

.support-app-list a {
    text-decoration: none;
    color: var(--ll-text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--ll-border);
    transition: color 0.2s, border-color 0.2s;
}

.support-app-list a:hover {
    color: var(--ll-text);
    border-color: var(--ll-text-secondary);
}

/* ── Footer ── */
.footer {
    border-top: 1px solid var(--ll-border);
    padding: var(--sp-6) var(--sp-3);
}

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

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--sp-1);
}

.footer-brand svg {
    width: 20px;
    height: 20px;
    opacity: 0.5;
}

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

.footer-links {
    display: flex;
    gap: var(--sp-3);
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--ll-text-secondary);
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* ── Company intro ── */
.company-intro {
    text-align: center;
    max-width: 520px;
    margin: 0 auto;
    padding: 0 var(--sp-3);
}

.company-intro p {
    color: var(--ll-text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ── Dark mode ── */
@media (prefers-color-scheme: dark) {
    :root {
        --ll-bg: #121218;
        --ll-bg-alt: #1a1a22;
        --ll-text: #e8e8ec;
        --ll-text-secondary: #9a9aaa;
        --ll-border: #2a2a35;
        --ll-accent: #b0b0c0;
    }

    body.app-frame {
        --app-bg-hero: #1e1a2e;
        --app-bg-hero-gradient: linear-gradient(160deg, #1e1a30 0%, #1a1828 40%, #161420 100%);
        --app-accent-soft: rgba(107, 92, 231, 0.15);
        --app-accent-medium: rgba(107, 92, 231, 0.25);
        --app-feature-bg: #1a1828;
    }

    body.app-skyready {
        --app-bg-hero: #221a12;
        --app-bg-hero-gradient: linear-gradient(160deg, #251c14 0%, #201810 40%, #1a140c 100%);
        --app-accent-soft: rgba(208, 101, 32, 0.12);
        --app-accent-medium: rgba(208, 101, 32, 0.2);
        --app-feature-bg: #1e1610;
    }

    body.app-tideready {
        --app-bg-hero: #0c1a28;
        --app-bg-hero-gradient: linear-gradient(160deg, #101e2e 0%, #0c1824 40%, #08121c 100%);
        --app-accent-soft: rgba(11, 61, 107, 0.15);
        --app-accent-medium: rgba(11, 61, 107, 0.25);
        --app-feature-bg: #0e1820;
    }

    .nav {
        background: rgba(18, 18, 24, 0.88);
        border-bottom-color: var(--ll-border);
    }

    .feature {
        background: var(--ll-bg-alt);
    }

    .app-store-badge {
        background: #e8e8ec;
        color: #121218;
    }

    .app-store-badge svg {
        fill: #121218;
    }

    .support-email {
        color: var(--ll-text);
        background: var(--ll-bg-alt);
        border-color: var(--ll-border);
    }

    body::after {
        opacity: 0.03;
    }
}

/* ── Responsive ── */
@media (max-width: 640px) {
    .nav-links {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: rgba(250, 250, 248, 0.98);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        flex-direction: column;
        padding: var(--sp-2) var(--sp-3);
        gap: var(--sp-2);
        border-bottom: 1px solid var(--ll-border);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

    .hero {
        min-height: 56vh;
        min-height: 56dvh;
        padding: var(--sp-8) var(--sp-3);
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--sp-2);
    }

    .section {
        padding: var(--sp-8) var(--sp-3);
    }

    .screenshot-row {
        gap: var(--sp-2);
    }

    .screenshot-item {
        width: 140px;
    }

    .footer-inner {
        flex-direction: column;
        gap: var(--sp-3);
        text-align: center;
    }

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