/* ============================================================
   CasyStudioCo — Master stylesheet (inlined)
   ------------------------------------------------------------
   Modular split source: css/{tokens,layout,components,utilities,print}.css
   Inlined here because GitHub Pages had cache/Jekyll issues with @import
   chain (404s on sub-files). Regenerate after editing the split files:
       { header } ; cat css/tokens.css css/layout.css ... > style.css
   Cascade order is significant:
       Tokens → Layout → Components → Utilities → Print
   ============================================================ */

/* ===== tokens.css ===== */
/* ============================================================
   CasyStudioCo — Design System: Tokens ("Aurora Glass")
   ------------------------------------------------------------
   Token layer (`:root`) is the single source of truth for
   colors, type, spacing, radii, shadows and motion. Every
   component below references tokens so that re-skinning the
   studio site is one edit, not fifty.

   Tokens
     --color-*       Surfaces, ink, glass and brand accents
     --font-*        Stack + fluid type scale (clamp)
     --space-*       4px base, 1..20
     --radius-*      sm | md | lg | xl | pill
     --shadow-*      sm | md | lg | glow
     --motion-*      fast | base | slow easing curves
     --container-*   max-width + side gutter

   Breakpoints (custom properties cannot drive media queries —
   these are the canonical values, used as literals throughout
   and documented here once):
     phone   ≤ 380px
     mobile  ≤ 600px
     tablet  ≤ 720px   (aurora drift animation enables > 720px)
     desktop ≥ 960px

   Theme
     Defaults to dark — "Aurora Glass": deep warm black, frosted
     glass surfaces (white-alpha), aurora mesh backdrop, orange
     glow accents. `prefers-color-scheme: light` flips surfaces
     and ink while keeping the accent identity.
   ============================================================ */

:root {
    /* Brand */
    --color-accent:        #FF6B00;
    --color-accent-hover:  #FF8A33;
    --color-accent-ink:    #FF8A33;   /* accent used as TEXT — ≥4.5:1 on --color-bg */
    --color-accent-grad-2: #FFB066;   /* second stop for gradient headline text */
    --color-accent-soft:   rgba(255, 107, 0, 0.14);
    --color-accent-ring:   rgba(255, 107, 0, 0.40);

    /* Aurora mesh accents — low-opacity radial layers in the page
       backdrop only; they never become foreground text colour. */
    --color-mesh-warm:     rgba(255, 107, 0, 0.16);   /* primary glow */
    --color-mesh-magenta:  rgba(236, 72, 153, 0.10);  /* deep accent */
    --color-mesh-violet:   rgba(139, 92, 246, 0.10);  /* atmospheric depth */

    /* Surfaces — dark default. Glass surfaces are white-alpha so
       they pick up the aurora behind them. */
    --color-bg:            #0A0908;
    --color-bg-elev:       #131110;
    --color-surface:       rgba(255, 255, 255, 0.04);
    --color-surface-hover: rgba(255, 255, 255, 0.07);
    --color-glass:         rgba(16, 14, 12, 0.62);    /* frosted topbar */
    --color-border:        rgba(255, 255, 255, 0.09);
    --color-border-strong: rgba(255, 255, 255, 0.16);

    /* Ink */
    --color-text:          #F5F1EB;
    --color-text-muted:    #ADA79F;
    --color-text-faint:    #8E8982;
    --color-text-on-accent:#14100C;

    /* Status */
    --color-success:       #5EEAB4;
    --color-warn:          #FBBF24;
    --color-danger:        #F87171;

    /* Typography */
    --font-sans:
        -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
        "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono:
        ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

    /* Fluid type scale — min, ideal, max */
    --text-xs:   0.75rem;                                     /* 12 */
    --text-sm:   0.875rem;                                    /* 14 */
    --text-base: 1rem;                                        /* 16 */
    --text-lg:   clamp(1.0625rem, 0.98rem + 0.4vw, 1.25rem);  /* 17–20 */
    --text-xl:   clamp(1.25rem, 1.10rem + 0.7vw, 1.5rem);     /* 20–24 */
    --text-2xl:  clamp(1.5rem, 1.25rem + 1.2vw, 2.25rem);     /* 24–36 */
    --text-3xl:  clamp(2rem, 1.5rem + 2.4vw, 3rem);           /* 32–48 */
    --text-4xl:  clamp(2.75rem, 1.85rem + 4.5vw, 5.5rem);     /* 44–88, hero */

    --leading-tight: 1.08;
    --leading-snug:  1.35;
    --leading-normal:1.55;
    --leading-loose: 1.7;

    --tracking-tight: -0.03em;
    --tracking-normal: 0;
    --tracking-wide: 0.06em;

    /* Spacing — 4px base */
    --space-1:  0.25rem;   /* 4  */
    --space-2:  0.5rem;    /* 8  */
    --space-3:  0.75rem;   /* 12 */
    --space-4:  1rem;      /* 16 */
    --space-5:  1.25rem;   /* 20 */
    --space-6:  1.5rem;    /* 24 */
    --space-8:  2rem;      /* 32 */
    --space-10: 2.5rem;    /* 40 */
    --space-12: 3rem;      /* 48 */
    --space-16: 4rem;      /* 64 */
    --space-20: 5rem;      /* 80 */

    /* Radii */
    --radius-sm:   6px;
    --radius-md:   12px;
    --radius-lg:   20px;
    --radius-xl:   28px;
    --radius-pill: 999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.30);
    --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.45);
    --shadow-glow: 0 0 48px rgba(255, 107, 0, 0.25);

    /* Motion */
    --motion-fast: 140ms cubic-bezier(0.2, 0.7, 0.2, 1);
    --motion-base: 220ms cubic-bezier(0.2, 0.7, 0.2, 1);
    --motion-slow: 380ms cubic-bezier(0.2, 0.7, 0.2, 1);

    /* Container */
    --container-max: 1080px;
    --container-pad: clamp(1.25rem, 4vw, 2.5rem);

    /* Focus ring — two-tone: inner bg separator + outer accent-ink ring.
       Uses --color-accent-ink (not raw accent) so the indicator clears
       WCAG 2.4.11 ≥3:1 against the page in BOTH modes (light #B84800 ≈4.95:1,
       dark #FF8A33 ≈8.49:1; raw #FF6B00 would be only 2.67:1 on the light bg). */
    --focus-ring: 0 0 0 2px var(--color-bg), 0 0 0 4px var(--color-accent-ink);

    color-scheme: dark;
}

@media (prefers-color-scheme: light) {
    :root {
        --color-bg:            #FAF7F2;
        --color-bg-elev:       #FFFFFF;
        --color-surface:       rgba(255, 255, 255, 0.65);
        --color-surface-hover: rgba(255, 255, 255, 0.92);
        --color-glass:         rgba(255, 253, 250, 0.72);
        --color-border:        rgba(26, 23, 20, 0.10);
        --color-border-strong: rgba(26, 23, 20, 0.18);

        --color-text:          #16120E;
        --color-text-muted:    #4E4942;
        --color-text-faint:    #6F6962;
        --color-text-on-accent:#14100C;

        --color-accent-ink:    #B84800;
        --color-accent-grad-2: #E06A00;
        --color-accent-soft:   rgba(255, 107, 0, 0.10);
        --color-accent-ring:   rgba(255, 107, 0, 0.35);

        --color-success:       #197A43;   /* ≈5.03:1 on light bg — was #1F8A4D (4.1:1) */
        --color-warn:          #8F5400;   /* ≈5.72:1 on light bg — was #A86200 (4.45:1) */
        --color-danger:        #C2410C;

        /* Aurora layers stay warmer & lighter on the bright surface */
        --color-mesh-warm:     rgba(255, 107, 0, 0.10);
        --color-mesh-magenta:  rgba(236, 72, 153, 0.07);
        --color-mesh-violet:   rgba(139, 92, 246, 0.07);

        --shadow-sm: 0 1px 2px rgba(20, 17, 15, 0.06);
        --shadow-md: 0 6px 18px rgba(20, 17, 15, 0.08);
        --shadow-lg: 0 18px 48px rgba(20, 17, 15, 0.12);
        --shadow-glow: 0 0 48px rgba(255, 107, 0, 0.18);

        color-scheme: light;
    }
}

/* ===== layout.css ===== */
/* ============================================================
   Layout — reset, base typography, page structure, responsive
   ============================================================ */

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

html {
    -webkit-text-size-adjust: 100%;
    text-rendering: optimizeLegibility;
    overflow-x: clip;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--color-text);
    /* Aurora backdrop — static radial layers stacked on the solid
       surface token so light/dark mode just works. Kept to three
       layers for performance (Lighthouse-safe). The animated drift
       layer lives on body::before and only enables on desktop. */
    background-color: var(--color-bg);
    background-image:
        radial-gradient(42% 38% at 18% 8%,  var(--color-mesh-warm)    0%, transparent 70%),
        radial-gradient(36% 32% at 85% 18%, var(--color-mesh-magenta) 0%, transparent 70%),
        radial-gradient(50% 44% at 60% 96%, var(--color-mesh-violet)  0%, transparent 70%);
    background-attachment: fixed;
    background-repeat: no-repeat;
    min-height: 100dvh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: clip;
}

/* Mobile devices struggle with `background-attachment: fixed` (jank,
   over-paint). Fall back to scrolled background — visually identical. */
@media (max-width: 720px) {
    body { background-attachment: scroll; }
}

/* Aurora drift — desktop + motion-tolerant users only. A blurred,
   slowly breathing duplicate of the mesh adds the "alive" quality
   without costing mobile paint budget. */
@media (min-width: 721px) and (prefers-reduced-motion: no-preference) {
    body::before {
        content: "";
        position: fixed;
        inset: -20%;
        z-index: -1;
        pointer-events: none;
        background:
            radial-gradient(42% 38% at 18% 12%, var(--color-mesh-warm)    0%, transparent 70%),
            radial-gradient(36% 32% at 85% 8%,  var(--color-mesh-magenta) 0%, transparent 70%),
            radial-gradient(50% 44% at 70% 88%, var(--color-mesh-violet)  0%, transparent 70%);
        filter: blur(40px);
        animation: aurora-drift 28s cubic-bezier(0.2, 0.7, 0.2, 1) infinite alternate;
    }
    @keyframes aurora-drift {
        from { transform: translate3d(-2%, -1%, 0) scale(1); }
        to   { transform: translate3d(2%, 2%, 0) scale(1.06); }
    }
}

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

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

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

:focus { outline: none; }
:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
    border-radius: var(--radius-sm);
}
/* Windows High Contrast / forced-colors strips box-shadow, so the focus
   halo above would vanish. Restore a system-colour outline there. */
@media (forced-colors: active) {
    :focus-visible {
        outline: 2px solid CanvasText;
        outline-offset: 2px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ============================================================
   Container
   ============================================================ */

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-6) var(--container-pad) var(--space-16);
}

/* Slim container for legal/text pages */
.container.container--narrow { max-width: 760px; }

/* ============================================================
   Base typography
   ============================================================ */

h1, h2, h3, h4 {
    font-family: var(--font-sans);
    color: var(--color-text);
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tight);
    font-weight: 700;
}

h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-xl); margin-top: var(--space-8); margin-bottom: var(--space-3); }
h3 { font-size: var(--text-lg); }

p, li {
    font-size: var(--text-base);
    line-height: var(--leading-loose);
    color: var(--color-text-muted);
    margin-bottom: var(--space-3);
}
strong { color: var(--color-text); }
ul { padding-left: var(--space-5); margin-bottom: var(--space-4); }
li { margin-bottom: var(--space-1); }

.welcome { /* legacy: kept for compat — small eyebrow */
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    font-weight: 600;
    margin-bottom: var(--space-3);
}

.section-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: var(--tracking-tight);
}

.subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    line-height: var(--leading-snug);
    max-width: 60ch;
    margin-bottom: var(--space-12);
}

.date { color: var(--color-text-faint); font-size: var(--text-sm); margin-bottom: var(--space-10); }

/* Sub-page legacy heading variant */
h1.page-title {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-2);
    color: var(--color-text);
}

/* ============================================================
   Top bar — frosted glass pill, sticky
   Same markup on landing and every sub-page; only blurs where
   the browser actually supports backdrop-filter (solid glass
   token is the fallback either way).
   ============================================================ */

.topbar {
    position: sticky;
    top: var(--space-4);
    z-index: 40;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
    padding: var(--space-2) var(--space-4);
    background: var(--color-glass);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    box-shadow: var(--shadow-sm);
}
@supports ((backdrop-filter: blur(20px)) or (-webkit-backdrop-filter: blur(20px))) {
    .topbar {
        backdrop-filter: blur(20px) saturate(140%);
        -webkit-backdrop-filter: blur(20px) saturate(140%);
    }
}

.wordmark {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-text);
    font-weight: 700;
    letter-spacing: -0.01em;
    font-size: var(--text-base);
}
/* Renders the "Geometric Orbit" glyph from favicon.svg (inlined as a
   data URI so the brand mark is identical everywhere). The mark is
   transparent — no badge background or glow. The "CS" text in the
   span stays for robustness but is made transparent. */
.wordmark-mark {
    width: 30px;
    height: 30px;
    background-image:
        url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 64 64'><defs><linearGradient id='c' x1='0' y1='0' x2='0' y2='1'><stop offset='0' stop-color='%23FFB066'/><stop offset='0.6' stop-color='%23FF6B00'/><stop offset='1' stop-color='%23EC4899'/></linearGradient></defs><g fill='none' stroke-linecap='round'><path d='M47.5 9.9 A27 27 0 1 0 47.5 54.1' stroke='%23FF6B00' stroke-width='5'/><path d='M39.8 18.5 A9 9 0 1 0 32 32 A9 9 0 1 1 24.2 45.5' stroke='url(%23c)' stroke-width='8'/></g></svg>");
    background-size: 100% 100%;
    color: transparent;
    display: grid;
    place-items: center;
    font-size: 13px;
    font-weight: 900;
    letter-spacing: -0.04em;
}

/* Sub-page back link (legacy) */
.back {
    color: var(--color-accent-ink);
    font-size: var(--text-sm);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    margin-bottom: var(--space-6);
}
.back:hover { color: var(--color-accent-hover); }

/* Sub-page nav */
nav { display: flex; gap: var(--space-5); margin-bottom: var(--space-10); flex-wrap: wrap; }
nav a { color: var(--color-text-muted); font-size: var(--text-sm); font-weight: 500; }
nav a:hover { color: var(--color-accent-ink); }

/* ============================================================
   Hero — centered, oversized type, gradient accent, glow CTA
   The aurora on <body> carries the atmosphere; this block owns
   typography + spacing only.
   ============================================================ */

.hero {
    position: relative;
    padding: clamp(3.5rem, 9vw, 7rem) 0 clamp(2.5rem, 6vw, 4.5rem);
    text-align: center;
}
.hero .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--color-text-muted);
    background: var(--color-surface);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-pill);
    padding: var(--space-2) var(--space-4);
    margin-bottom: var(--space-8);
}
.hero .eyebrow::before {
    content: "";
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
    flex-shrink: 0;
}
.hero h1 {
    font-size: var(--text-4xl);
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tight);
    font-weight: 700;
    color: var(--color-text);
    margin: 0 auto var(--space-6);
    max-width: 17ch;
    overflow-wrap: break-word;
}
.hero h1 .accent {
    /* Solid accent ink (calmer, less "AI gradient"); --color-accent-ink is
       the ≥4.5:1 text-safe accent in both modes. The gradient token
       (--color-accent-grad-2) stays defined but is no longer used here. */
    color: var(--color-accent-ink);
}
.hero .lede {
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    line-height: var(--leading-snug);
    max-width: 52ch;
    margin: 0 auto var(--space-10);
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    align-items: center;
    justify-content: center;
}
.hero-cta__primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    min-height: 48px;
    min-width: 12.5rem;
    padding: 0 var(--space-8);
    background: var(--color-accent);
    color: var(--color-text-on-accent);
    border-radius: var(--radius-pill);
    font-weight: 700;
    font-size: var(--text-base);
    letter-spacing: -0.01em;
    box-shadow: var(--shadow-glow);
    transition: background var(--motion-fast), transform var(--motion-fast), box-shadow var(--motion-base);
}
.hero-cta__primary:hover {
    background: var(--color-accent-hover);
    color: var(--color-text-on-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow), var(--shadow-md);
}
.hero-cta__secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    min-height: 48px;
    min-width: 12.5rem;
    padding: 0 var(--space-8);
    color: var(--color-text);
    font-weight: 600;
    font-size: var(--text-base);
    background: var(--color-surface);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-pill);
    transition: background var(--motion-fast), transform var(--motion-fast), border-color var(--motion-fast);
}
.hero-cta__secondary:hover {
    color: var(--color-text);
    background: var(--color-surface-hover);
    transform: translateY(-2px);
}
@media (prefers-reduced-motion: reduce) {
    .hero-cta__primary:hover,
    .hero-cta__secondary:hover { transform: none; }
}

/* ============================================================
   Section header
   ============================================================ */

.section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
}
.section-head .section-title { margin: 0; }
.section-head .section-meta {
    color: var(--color-text-faint);
    font-size: var(--text-sm);
    font-variant-numeric: tabular-nums;
}

/* ============================================================
   App grid — bento (cards live in components.css)
   First (featured) card may span the full row via the
   `app-card--featured` modifier rendered by the landing JS.
   ============================================================ */

.app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-16);
    /* reserve space so async render of cards does not shift the page (CLS) */
    min-height: 280px;
}

/* ============================================================
   Footer (landing)
   ============================================================ */

.site-footer {
    margin-top: var(--space-16);
    padding-top: var(--space-10);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    display: grid;
    gap: var(--space-6);
    grid-template-columns: 1fr;
}
.site-footer__brand { display: flex; flex-direction: column; gap: var(--space-2); }
.site-footer__brand .wordmark { font-size: var(--text-base); }
.site-footer__brand p { margin: 0; max-width: 42ch; }
.site-footer__row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-6) var(--space-8);
    align-items: center;
    justify-content: space-between;
}
.site-footer__links { display: flex; flex-wrap: wrap; gap: var(--space-5); }
.site-footer__links a {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    font-weight: 500;
}
.site-footer__links a:hover { color: var(--color-accent-ink); }
.site-footer__legal {
    color: var(--color-text-faint);
    font-size: var(--text-xs);
    font-family: var(--font-mono);
    letter-spacing: 0;
}
.site-footer__note {
    color: var(--color-text-faint);
    font-size: var(--text-xs);
    max-width: 64ch;
    margin: 0;
}

/* Sub-page footer (legacy <footer>) */
footer:not(.site-footer) {
    margin-top: var(--space-16);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-faint);
    font-size: var(--text-sm);
}

/* ============================================================
   Responsive (mobile-first overrides)
   The fluid type + auto-fill grid handle most cases. Below
   we tighten spacing for small screens and stack the footer.
   ============================================================ */

@media (min-width: 720px) {
    .site-footer {
        grid-template-columns: 1.4fr 1fr;
        align-items: start;
    }
    .site-footer__row { justify-content: flex-end; }
}

@media (max-width: 600px) {
    .container { padding: var(--space-4) var(--container-pad) var(--space-12); }
    .topbar { margin-bottom: var(--space-8); top: var(--space-2); }
    .hero h1 { max-width: none; }
    .app-grid { gap: var(--space-4); }
}

@media (max-width: 380px) {
    .container { padding: var(--space-3) var(--space-4) var(--space-10); }
    .topbar { gap: var(--space-2); }
    .wordmark span:not(.wordmark-mark) { display: none; }
    .site-footer__row { flex-direction: column; align-items: flex-start; gap: var(--space-4); }
}

/* ===== components.css ===== */
/* ============================================================
   Pill toggle (language switch)
   ============================================================ */

.lang-switch {
    display: inline-flex;
    align-items: center;
    padding: 3px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    gap: 2px;
}
.lang-switch a,
.lang-switch button {
    appearance: none;
    border: 0;
    cursor: pointer;
    font-family: inherit;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 38px;
    padding: 0 var(--space-3);
    border-radius: var(--radius-pill);
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: var(--tracking-wide);
    color: var(--color-text-muted);
    background: transparent;
    transition: color var(--motion-fast), background var(--motion-fast);
}
.lang-switch a:hover,
.lang-switch button:hover { color: var(--color-text); }
.lang-switch a.active,
.lang-switch button.active {
    background: var(--color-accent);
    color: var(--color-text-on-accent);
    box-shadow: var(--shadow-sm);
}

/* ============================================================
   App cards — frosted glass with top hairline highlight
   ============================================================ */

.app-card {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    padding: var(--space-6);
    /* Solid fallback first (browsers without backdrop-filter). */
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition:
        transform var(--motion-base),
        border-color var(--motion-base),
        background var(--motion-base),
        box-shadow var(--motion-base);
    isolation: isolate;
    min-height: 240px;
    overflow: hidden;
}
@supports ((backdrop-filter: blur(20px)) or (-webkit-backdrop-filter: blur(20px))) {
    .app-card {
        backdrop-filter: blur(20px) saturate(140%);
        -webkit-backdrop-filter: blur(20px) saturate(140%);
    }
}
/* Top hairline — the "lit edge" that sells the glass. */
.app-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border-strong), transparent);
    pointer-events: none;
}
.app-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-border-strong);
    background: var(--color-surface-hover);
    box-shadow: var(--shadow-lg);
}
.app-card:focus-within {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md), var(--focus-ring);
}
@media (prefers-reduced-motion: reduce) {
    .app-card:hover { transform: none; }
}

/* Deep-link highlight — a brief accent ring + glow when an app is opened via
   /?app=<folder>. JS adds .app-card--deeplink for ~1.4s on initial load, then
   removes it; the keyframe fades both back to the card's resting state (no
   jump). reduced-motion users never get the class (JS-guarded); the media
   query below is belt-and-suspenders. */
.app-card--deeplink {
    animation: app-card-deeplink 1.4s ease-out 1;
}
@keyframes app-card-deeplink {
    0%, 55% {
        border-color: var(--color-accent);
        box-shadow: 0 0 0 3px var(--color-accent-ring), 0 0 48px rgba(255, 107, 0, 0.25);
    }
    100% {
        border-color: var(--color-border);
        box-shadow: 0 0 0 0 rgba(255, 107, 0, 0), 0 0 48px rgba(255, 107, 0, 0);
    }
}
@media (prefers-reduced-motion: reduce) {
    .app-card--deeplink { animation: none; }
}

/* Featured card — first live app spans the full grid row and gets
   a decorative icon medallion (aria-hidden, rendered by JS). */
.app-card--featured { grid-column: 1 / -1; }
.app-card--featured .app-card-body {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    min-width: 0;
    flex: 1;
}
@media (min-width: 720px) {
    .app-card--featured {
        display: grid;
        grid-template-columns: 1.3fr 1fr;
        gap: var(--space-8);
        align-items: center;
        padding: var(--space-8);
    }
}
.app-card--featured .app-card-visual {
    display: none;
    aspect-ratio: 4 / 3;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background:
        radial-gradient(80% 90% at 70% 20%, var(--color-accent-soft), transparent 65%),
        var(--color-bg-elev);
    place-items: center;
}
@media (min-width: 720px) {
    .app-card--featured .app-card-visual { display: grid; }
}
.app-card--featured .app-card-visual .app-icon {
    width: 96px;
    height: 96px;
    border-radius: 24px;
    font-size: 34px;
    box-shadow:
        inset 0 1px 0 rgba(255,255,255,0.25),
        0 18px 48px rgba(0,0,0,0.45),
        var(--shadow-glow);
}

/* Screenshot variant — a framed portrait app shot replaces the medallion.
   Unlike the medallion it stays visible on mobile (stacked under the copy),
   so the live app shows a real screenshot at every breakpoint. */
.app-card--featured .app-card-visual--shot {
    display: flex;
    aspect-ratio: auto;
    border: none;
    background: none;
    padding: 0;
    align-items: center;
    justify-content: center;
}
/* Height-capped to the card's text column: the shot lines up with the
   title edge on top and the description text at the bottom (~440px),
   never overflows, and keeps its portrait aspect via width/height:auto.
   NOTE: keep this in css/components.css — it was lost once when it lived
   only in style.css and a regen dropped it (WP-005 regression). */
.app-shot {
    display: block;
    margin-inline: auto;
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 440px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow:
        0 18px 48px rgba(0,0,0,0.45),
        var(--shadow-glow);
}

.app-card-header {
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
    margin-bottom: 0;
}
.app-card-title { flex: 1; min-width: 0; }
.app-card-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-1);
}

.app-icon {
    width: 56px; height: 56px;
    border-radius: 14px;
    flex-shrink: 0;
    display: grid;
    place-items: center;
    /* >=14pt bold = Large Text per WCAG, satisfies 3:1 on coloured backgrounds */
    font-size: 20px;
    font-weight: 900;
    color: #fff;
    letter-spacing: -0.04em;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.30);
    box-shadow:
        inset 0 1px 0 rgba(255,255,255,0.2),
        0 4px 12px rgba(0,0,0,0.25);
}
/* Real app icon (apps/icons/<folder>.png) — same footprint and rounded
   mask as the monogram badge, so live apps and fallbacks line up. */
.app-icon--img {
    display: block;
    object-fit: cover;
    background: var(--color-bg-elev);
}

.app-card h3 {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.01em;
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.app-card .tagline {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: var(--leading-snug);
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Badges row (inside header column) */
.badge-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-2);
}

.platform-badge,
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-xs);
    font-weight: 600;
    padding: 4px var(--space-2);
    border-radius: var(--radius-pill);
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    background: var(--color-surface);
    white-space: nowrap;
    line-height: 1;
}

/* Platform reads as a tech-credential — mono gives it weight without
   visual noise. Status stays in the regular sans for instant scanability. */
.platform-badge {
    font-family: var(--font-mono);
    font-weight: 500;
    letter-spacing: -0.01em;
}

.status-badge::before {
    content: "";
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--color-text-faint);
}
.status-badge.is-live {
    color: var(--color-success);
    border-color: color-mix(in oklab, var(--color-success) 35%, transparent);
    background: color-mix(in oklab, var(--color-success) 9%, transparent);
}
.status-badge.is-live::before {
    background: var(--color-success);
    box-shadow: 0 0 0 3px color-mix(in oklab, var(--color-success) 15%, transparent);
}
.status-badge.is-beta {
    color: var(--color-warn);
    border-color: color-mix(in oklab, var(--color-warn) 35%, transparent);
    background: color-mix(in oklab, var(--color-warn) 9%, transparent);
}
.status-badge.is-beta::before { background: var(--color-warn); }
.status-badge.is-soon {
    color: var(--color-text-faint);
}

/* Footer area inside card */
.app-card .links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2) var(--space-4);
    align-items: center;
    margin-top: auto;
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border);
}
.app-card--featured .links { margin-top: 0; }
.app-card .links a {
    color: var(--color-text-muted);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    transition: color var(--motion-fast);
    min-height: 44px;
    display: inline-flex;
    align-items: center;
}
.app-card .links a:hover { color: var(--color-accent-ink); }
.app-card .links a.store-link {
    margin-left: auto;
    color: var(--color-text-on-accent);
    background: var(--color-accent);
    padding: 8px 14px;
    border-radius: var(--radius-pill);
    text-transform: none;
    letter-spacing: 0;
    font-size: var(--text-xs);
    font-weight: 700;
    min-height: 0;
    transition: background var(--motion-fast);
}
.app-card .links a.store-link:hover {
    background: var(--color-accent-hover);
    color: var(--color-text-on-accent);
}

.empty-state {
    grid-column: 1 / -1;
    padding: var(--space-12);
    text-align: center;
    color: var(--color-text-muted);
    background: var(--color-surface);
    border: 1px dashed var(--color-border-strong);
    border-radius: var(--radius-xl);
}

/* ============================================================
   Legal links + FAQ (sub-pages)
   ============================================================ */

.legal-links { display: flex; flex-direction: column; gap: var(--space-3); }
.legal-links a {
    display: block;
    padding: var(--space-4) var(--space-5);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: var(--text-base);
    font-weight: 600;
    border: 1px solid var(--color-border);
    transition: border-color var(--motion-base), background var(--motion-base);
}
.legal-links a:hover {
    border-color: var(--color-border-strong);
    background: var(--color-surface-hover);
    color: var(--color-text);
}
.legal-links a span {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    font-weight: 400;
    display: block;
    margin-top: var(--space-1);
}

.faq {
    position: relative;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-5) var(--space-6);
    margin-bottom: var(--space-3);
    border: 1px solid var(--color-border);
    overflow: hidden;
}
.faq::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border-strong), transparent);
    pointer-events: none;
}
.faq h3 { font-size: var(--text-base); margin-bottom: var(--space-2); color: var(--color-text); }
.faq p { margin-bottom: 0; font-size: var(--text-sm); }

/* ============================================================
   Callout — accent-tinted note box (e.g. "authoritative legal
   notice" pointer on app impressum pages). Replaces the old
   inline-styled paragraphs; works in dark and light mode.
   ============================================================ */

.callout {
    background: var(--color-accent-soft);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius-sm);
    padding: var(--space-3) var(--space-4);
    margin: var(--space-4) 0;
}

/* ============================================================
   Buttons
   ============================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    min-height: 44px;
    padding: var(--space-3) var(--space-6);
    background: var(--color-accent);
    color: var(--color-text-on-accent);
    border-radius: var(--radius-pill);
    font-weight: 700;
    font-size: var(--text-base);
    box-shadow: var(--shadow-sm);
    transition: background var(--motion-fast), transform var(--motion-fast);
    margin-top: var(--space-2);
}
.btn:hover { background: var(--color-accent-hover); color: var(--color-text-on-accent); transform: translateY(-1px); }
@media (prefers-reduced-motion: reduce) {
    .btn:hover { transform: none; }
}

/* ============================================================
   Sub-page pattern (Privacy / Support / Terms / Impressum)
   ============================================================ */

.subpage-eyebrow {
    color: var(--color-accent-ink);
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    margin: 0 0 var(--space-2);
}

.back-link {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    margin-bottom: var(--space-6);
    transition: color var(--motion-fast);
}
.back-link:hover { color: var(--color-accent-ink); }

.container--narrow h1.page-title {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-2);
}

.legal-content { margin-top: var(--space-8); }
.legal-content > h2 {
    margin-top: var(--space-10);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
    font-size: var(--text-lg);
}
.legal-content > h2:first-of-type {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
}
.legal-content > h3 {
    margin-top: var(--space-5);
    font-size: var(--text-base);
    color: var(--color-text);
}
.legal-content > p,
.legal-content > ul {
    margin-bottom: var(--space-4);
    max-width: 68ch;
}
.legal-content .btn { margin-bottom: var(--space-4); }

/* ============================================================
   Detail trigger — in-card button that opens the app overlay.
   Its OWN action, visually distinct from the orange store pill.
   ============================================================ */

.detail-trigger {
    appearance: none;
    font-family: inherit;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    min-height: 44px;
    padding: 8px 14px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--color-border-strong);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: 0;
    transition:
        border-color var(--motion-fast),
        background var(--motion-fast),
        color var(--motion-fast);
}
.detail-trigger:hover {
    border-color: var(--color-accent);
    background: var(--color-surface-hover);
    color: var(--color-accent-ink);
}

/* Action-row grouping: the trigger absorbs the auto-margin so the
   "Details" + orange "App Store" pill sit together on the right, with
   the legal links left. The store pill normally carries the auto-margin
   itself (cards without a trigger); when a trigger precedes it we cancel
   that so the two buttons stay flush as a pair. */
.app-card .links .detail-trigger { margin-left: auto; }
.app-card .links .detail-trigger + .store-link { margin-left: 0; }

/* ============================================================
   App-detail overlay (modal dialog)
   Vanilla, no dependency. `[hidden]` keeps it out of the layout
   and a11y tree; `.is-open` drives the fade/scale-in. Reduced
   motion is handled by the global transition-killing rule.
   ============================================================ */

.overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    opacity: 0;
    transition: opacity var(--motion-base);
}
/* Author rule beats the UA `[hidden]{display:none}` only with this
   extra specificity — without it the flex display would leak. */
.overlay[hidden] { display: none; }
.overlay.is-open { opacity: 1; }

.overlay__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(6, 5, 4, 0.72);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.overlay__dialog {
    position: relative;
    display: flex;
    flex-direction: column;
    width: min(960px, 100%);
    max-height: calc(100vh - var(--space-8));
    max-height: calc(100dvh - var(--space-8));
    overflow: hidden;
    background: var(--color-bg-elev);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transform: translateY(12px) scale(0.985);
    transition: transform var(--motion-base);
}
.overlay.is-open .overlay__dialog { transform: none; }

.overlay__close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    z-index: 2;
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    border-radius: var(--radius-pill);
    font-size: 26px;
    line-height: 1;
    cursor: pointer;
    transition: background var(--motion-fast), border-color var(--motion-fast);
}
.overlay__close:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-border-strong);
}

.overlay__header {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-5) var(--space-6);
    padding-right: var(--space-16);
    border-bottom: 1px solid var(--color-border);
}
.overlay__icon {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    border-radius: 14px;
    object-fit: cover;
    background: var(--color-bg);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.15), 0 4px 12px rgba(0,0,0,0.25);
}
.overlay__title {
    margin: 0;
    font-size: var(--text-xl);
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--color-text);
}
.overlay__platform {
    margin: 2px 0 0;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

.overlay__body {
    flex: 1 1 auto;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    display: grid;
    gap: var(--space-6);
    padding: var(--space-6);
}
@media (min-width: 760px) {
    .overlay__body {
        grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
        gap: var(--space-8);
        align-items: start;
        padding: var(--space-8);
    }
}

/* Gallery */
.overlay__gallery { position: relative; min-width: 0; }
.overlay__viewport {
    overflow: hidden;
    height: min(58vh, 520px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background: var(--color-bg);
}
.overlay__track {
    display: flex;
    height: 100%;
    transition: transform var(--motion-base);
}
.overlay__slide {
    flex: 0 0 100%;
    min-width: 100%;
    height: 100%;
}
.overlay__shot {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.overlay__nav {
    position: absolute;
    top: calc(min(58vh, 520px) / 2);
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    border: 1px solid var(--color-border-strong);
    background: var(--color-glass);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--color-text);
    border-radius: var(--radius-pill);
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
    transition: background var(--motion-fast), opacity var(--motion-fast);
}
.overlay__nav:hover { background: var(--color-surface-hover); }
.overlay__nav--prev { left: var(--space-3); }
.overlay__nav--next { right: var(--space-3); }
.overlay__nav.is-disabled { opacity: 0.32; cursor: default; }

.overlay__indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    margin-top: var(--space-3);
}
.overlay__counter {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-variant-numeric: tabular-nums;
    color: var(--color-text-muted);
}
.overlay__dots { display: flex; gap: var(--space-1); }
.overlay__dot {
    width: 24px;
    height: 24px;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
    display: grid;
    place-items: center;
}
.overlay__dot::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-border-strong);
    transition: background var(--motion-fast), transform var(--motion-fast);
}
.overlay__dot:hover::before { background: var(--color-text-muted); }
.overlay__dot.is-active::before { background: var(--color-accent); transform: scale(1.3); }

/* Single-screenshot apps: drop the nav chrome entirely. */
.overlay__gallery.is-single .overlay__nav,
.overlay__gallery.is-single .overlay__indicator { display: none; }

/* Content */
.overlay__content { min-width: 0; }
.overlay__desc {
    margin: 0 0 var(--space-5);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--color-text);
}
.overlay__sections {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}
.overlay__section h3 {
    margin: 0 0 var(--space-1);
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--color-accent-ink);
}
.overlay__section p {
    margin: 0;
    font-size: var(--text-sm);
    line-height: var(--leading-normal);
    color: var(--color-text-muted);
}
.overlay__store {
    margin-top: var(--space-6);
    width: 100%;
}

@media (max-width: 600px) {
    .overlay { padding: 0; }
    .overlay__dialog {
        width: 100%;
        max-height: 100vh;
        max-height: 100dvh;
        border: 0;
        border-radius: 0;
    }
    .overlay__header {
        padding: var(--space-4) var(--space-5);
        padding-right: var(--space-12);
    }
    .overlay__body { padding: var(--space-5); }
}

@media (prefers-reduced-motion: reduce) {
    .overlay,
    .overlay__dialog,
    .overlay__track { transition: none; }
}

/* ============================================================
   Component responsive overrides
   These must live AFTER the component base styles to win the
   cascade; that's why they sit in components.css rather than
   layout.css alongside the layout-level breakpoints.
   ============================================================ */

@media (max-width: 600px) {
    .app-card { padding: var(--space-5); min-height: 0; }
    .app-icon { width: 48px; height: 48px; font-size: 20px; border-radius: 12px; }
    .app-card .links { gap: var(--space-2) var(--space-3); }
    /* Drop the auto-push so the action row wraps left-to-right and never
       leaves the trigger and store pill stranded on opposite sides. */
    .app-card .links .detail-trigger { margin-left: 0; }
    .app-card-title-row { gap: var(--space-2); }
}

@media (max-width: 380px) {
    .app-card { padding: var(--space-4); }
}

/* ===== utilities.css ===== */
/* ============================================================
   Utilities — a11y helpers, scroll-reveal
   Loaded after components so utility overrides win the cascade.
   ============================================================ */

/* Skip-to-content (a11y) */
.skip-link {
    position: absolute;
    left: var(--space-4);
    top: var(--space-4);
    padding: var(--space-2) var(--space-4);
    background: var(--color-accent);
    color: var(--color-text-on-accent);
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: var(--text-sm);
    transform: translateY(-200%);
    transition: transform var(--motion-base);
    z-index: 100;
}
.skip-link:focus-visible {
    transform: translateY(0);
    color: var(--color-text-on-accent);
    box-shadow: var(--shadow-md);
}

/* ============================================================
   Scroll-reveal — IntersectionObserver-driven fade+slide.
   Elements opt in via the `.reveal` class. JS adds `.is-visible`
   when the element enters the viewport. Reduced-motion users skip
   the transform entirely and see content immediately.
   ============================================================ */

.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition:
        opacity var(--motion-slow),
        transform var(--motion-slow);
    will-change: opacity, transform;
}
.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}
/* Stagger inside the app grid so cards don't pop in as a block. */
.app-grid .reveal:nth-child(2) { transition-delay:  80ms; }
.app-grid .reveal:nth-child(3) { transition-delay: 160ms; }
.app-grid .reveal:nth-child(4) { transition-delay: 240ms; }

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ============================================================
   Back-to-Top button
   Lives on long legal/info sub-pages. Wired up by /back-to-top.js.
   Hidden until the page is scrolled past ~200px.
   ============================================================ */

.back-to-top {
    position: fixed;
    right: var(--space-5);
    bottom: var(--space-5);
    /* Respect iOS home-indicator + notch on mobile Safari. */
    bottom: calc(var(--space-5) + env(safe-area-inset-bottom, 0px));
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-pill);
    background: var(--color-glass);
    color: var(--color-text);
    font-size: var(--text-lg);
    line-height: 1;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition:
        opacity var(--motion-base),
        transform var(--motion-base),
        visibility 0s linear var(--motion-base),
        background var(--motion-fast),
        border-color var(--motion-fast),
        color var(--motion-fast);
    z-index: 50;
    /* Avoid Safari double-tap zoom on the icon. */
    touch-action: manipulation;
}
@supports ((backdrop-filter: blur(14px)) or (-webkit-backdrop-filter: blur(14px))) {
    .back-to-top {
        backdrop-filter: blur(14px) saturate(140%);
        -webkit-backdrop-filter: blur(14px) saturate(140%);
    }
}
.back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition:
        opacity var(--motion-base),
        transform var(--motion-base),
        visibility 0s,
        background var(--motion-fast),
        border-color var(--motion-fast),
        color var(--motion-fast);
}
.back-to-top:hover {
    color: var(--color-accent-ink);
    border-color: var(--color-accent-ring);
}
.back-to-top:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}
.back-to-top svg {
    width: 18px;
    height: 18px;
    display: block;
}

@media (max-width: 380px) {
    .back-to-top {
        right: var(--space-4);
        bottom: calc(var(--space-4) + env(safe-area-inset-bottom, 0px));
    }
}

@media (prefers-reduced-motion: reduce) {
    .back-to-top {
        transition: opacity 0s, visibility 0s;
    }
    .back-to-top.is-visible {
        transition: opacity 0s, visibility 0s;
    }
    html {
        scroll-behavior: auto;
    }
}

/* ============================================================
   Footer language switch — quiet inline text toggle (WP-007).
   Lives next to the copyright in the bottom row. No pill, no
   background, no leading label. Active language is communicated
   by font-weight + accent-ink text colour. Tap target is held at
   44×44 px via inline-block + min-width/min-height + padding so
   the visual stays compact but mobile-friendly.
   ============================================================ */
.site-footer__meta {
    display: flex;
    align-items: center;
    gap: var(--space-3) var(--space-5);
    flex-wrap: wrap;
}
.footer-lang {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    /* override the generic `nav { display:flex; gap; margin-bottom }`
       rule from layout.css so the inline footer toggle stays on one
       line with no bottom margin. */
    margin: 0;
}
.footer-lang a {
    display: inline-block;
    min-width: 44px;
    min-height: 44px;
    padding: 13px var(--space-2);
    text-align: center;
    color: var(--color-text-faint);
    font-size: var(--text-xs);
    font-weight: 500;
    letter-spacing: var(--tracking-wide);
    line-height: 1;
    border-radius: var(--radius-sm);
    transition: color var(--motion-fast);
}
.footer-lang a:hover {
    color: var(--color-text);
}
.footer-lang a[aria-current="true"] {
    color: var(--color-accent-ink);
    font-weight: 700;
}
.footer-lang span[aria-hidden="true"] {
    color: var(--color-text-faint);
    font-size: var(--text-xs);
    line-height: 1;
    user-select: none;
}

/* ============================================================
   Table of contents (datenschutz long page)
   ============================================================ */
.toc {
    margin: var(--space-6) 0 var(--space-8);
    padding: var(--space-5) var(--space-6);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
}
.toc__title {
    margin: 0 0 var(--space-3);
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--color-text-muted);
}
.toc ol {
    margin: 0;
    padding-left: var(--space-6);
    display: grid;
    gap: var(--space-1) var(--space-4);
    grid-template-columns: 1fr;
}
@media (min-width: 720px) {
    .toc ol { grid-template-columns: 1fr 1fr; }
}
.toc a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--text-sm);
}
.toc a:hover,
.toc a:focus-visible { color: var(--color-accent-ink); }

/* ===== print.css ===== */
/* ============================================================
   Print — legal pages are the primary print target.
   Plain white page, black ink, no chrome (topbar, language
   switch, back-to-top, aurora) so a printed privacy policy or
   legal notice reads like a document, not a screenshot.
   ============================================================ */

@media print {
    body {
        background: #fff !important;
        color: #000;
    }
    body::before { display: none; }

    .topbar,
    .lang-switch,
    .back-link,
    .back,
    .back-to-top,
    .skip-link,
    .footer-lang,
    .hero-cta {
        display: none !important;
    }

    h1, h2, h3, h4, p, li, strong, .date {
        color: #000 !important;
    }

    a {
        color: #000 !important;
        text-decoration: underline;
    }

    .legal-content > h2 {
        border-top-color: #ccc;
        break-after: avoid;
    }

    .container {
        max-width: none;
        padding: 0;
    }
}