/* =====================================================================
   XMB Design System — central design tokens & shared components
   Visuelle Designsprache abgeleitet von www.xmb-group.ch
   (Werte aus echten Computed-Styles extrahiert, nicht aus Kopien)
   Verwendet von: index.html, impressum.html
   ===================================================================== */

:root {
    /* ---------- FARBEN ---------- */
    --color-ink:            #0A0A0A;   /* primärer Hintergrund (dunkel) */
    --color-ink-soft:       #121212;   /* leicht erhöhte Flächen        */
    --color-surface:        #161616;   /* Karten auf Ink                */
    --color-paper:          #F5F3EE;   /* alternativer heller Abschnitt */

    --color-text-primary:   #FFFFFF;
    --color-text-secondary: rgba(255, 255, 255, 0.70);
    --color-text-muted:     rgba(255, 255, 255, 0.55);
    --color-text-on-paper:  #0A0A0A;

    --color-border:         rgba(255, 255, 255, 0.15);  /* Haarlinie         */
    --color-border-soft:    rgba(255, 255, 255, 0.08);

    --color-accent:         #CD20B2;   /* Magenta-Akzent (XMB Kontakt-Button) */
    --color-accent-hover:   #B71B9E;
    --color-accent-2:       #7C3AED;   /* Violett (Logo-Verlauf)             */
    --color-accent-deep:    #921BB2;   /* Voll-Bleed-Magenta                 */
    --gradient-accent:      linear-gradient(135deg, #7C3AED 0%, #A855F7 35%, #CD20B2 100%);

    /* ---------- TYPOGRAFIE ---------- */
    --font-sans: 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'Geist Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, 'Courier New', monospace;

    --fw-regular:  400;
    --fw-medium:   500;
    --fw-semibold: 600;
    --fw-bold:     700;

    /* fluide Schriftgrössen (clamp) */
    --fs-display: clamp(2.4rem, 6.5vw, 5rem);
    --fs-h1:      clamp(2rem, 5vw, 3.5rem);
    --fs-h2:      clamp(1.6rem, 3.6vw, 2.5rem);
    --fs-h3:      clamp(1.15rem, 2vw, 1.5rem);
    --fs-body:    clamp(0.95rem, 1.3vw, 1.05rem);
    --fs-small:   0.85rem;
    --fs-eyebrow: 0.72rem;

    --lh-display: 1.0;
    --lh-tight:   1.12;
    --lh-snug:    1.3;
    --lh-body:    1.65;

    --tracking-display: -0.04em;
    --tracking-tight:   -0.03em;
    --tracking-normal:  -0.01em;
    --tracking-eyebrow: 0.14em;

    /* ---------- LAYOUT / ABSTÄNDE ---------- */
    --container-max:    1280px;
    --container-narrow: 760px;
    --space-container:  clamp(1.25rem, 5vw, 4rem);   /* horizontaler Seitenrand */
    --space-section:    clamp(4rem, 10vw, 9rem);     /* vertikaler Section-Rhythmus */
    --space-card:       clamp(1.25rem, 2.5vw, 2rem); /* Karten-Innenabstand */

    /* ---------- RADIEN ---------- */
    --radius-sm:     2px;
    --radius-md:     4px;
    --radius-button: 0px;   /* XMB: scharfe Ecken */
    --radius-card:   0px;
    --radius-pill:   999px;

    /* ---------- RAHMEN & SCHATTEN ---------- */
    --border-hairline: 1px solid var(--color-border);
    --shadow-soft:  0 24px 48px -28px rgba(0, 0, 0, 0.75);
    --shadow-card:  none;

    /* ---------- TRANSITIONS ---------- */
    --transition-fast:     150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-standard: 300ms cubic-bezier(0.16, 1, 0.3, 1);

    /* ---------- Z-INDEX ---------- */
    --z-header:  100;
    --z-overlay: 200;
}

/* =====================================================================
   Basis-Reset (geteilt)
   ===================================================================== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

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

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

/* =====================================================================
   Geteilte Komponenten
   ===================================================================== */

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-container);
}
.container--narrow { max-width: var(--container-narrow); }

/* Eyebrow / Label (Geist Mono, uppercase, dezent) */
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    font-family: var(--font-mono);
    font-size: var(--fs-eyebrow);
    font-weight: var(--fw-regular);
    letter-spacing: var(--tracking-eyebrow);
    text-transform: uppercase;
    color: var(--color-text-muted);
}
.eyebrow .dot {
    width: 7px; height: 7px;
    border-radius: var(--radius-pill);
    background: var(--color-accent);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    min-height: 48px;                 /* ausreichende Touch-Fläche */
    padding: 0.85rem 1.75rem;
    font-family: var(--font-sans);
    font-size: var(--fs-body);
    font-weight: var(--fw-semibold);
    line-height: 1;
    letter-spacing: var(--tracking-normal);
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--radius-button);
    cursor: pointer;
    transition: background-color var(--transition-fast),
                border-color var(--transition-fast),
                color var(--transition-fast),
                opacity var(--transition-fast),
                transform var(--transition-fast);
}
.btn svg { width: 18px; height: 18px; flex: none; }

.btn-primary {
    background: var(--color-accent);
    color: #fff;
}
.btn-primary:hover { background: var(--color-accent-hover); }
.btn-primary:active { transform: translateY(1px); }

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border-color: var(--color-border);
}
.btn-secondary:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.06);
}
.btn-secondary:active { transform: translateY(1px); }

.btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}
.btn:disabled,
.btn[aria-disabled="true"] {
    opacity: 0.45;
    pointer-events: none;
}

/* ---------- Text-Link ---------- */
.text-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}
.text-link:hover {
    color: var(--color-text-primary);
    border-bottom-color: var(--color-border);
}
.text-link:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* ---------- Akzent-Highlight für Headlines ---------- */
.accent-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: var(--color-accent); /* Fallback */
}

/* =====================================================================
   Accessibility — Reduced Motion
   ===================================================================== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}