/* ==========================================================================
   RESSOURX – "Apple Luxury" Designsystem
   --------------------------------------------------------------------------
   Palette:   Tiefes Premium-Marineblau (#0a0e17) als Bühne,
              Marken-Gold-Verlauf #a26c28 → #f0e394 → #aa7934 als Akzent.
   Typo:      Systemschriften (SF Pro / Segoe UI / Inter-Fallback) – lokal,
              keine externen Font-CDNs (DSGVO + strikte CSP).
   A11y:      Kontraste ≥ 4,5:1, sichtbare Gold-Glow-Fokusringe,
              prefers-reduced-motion wird respektiert.
   ========================================================================== */

/* ---------- 1. Design-Tokens -------------------------------------------- */
:root {
    /* Flächen */
    --c-bg:        #0a0e17;   /* Premium-Marineblau, fast schwarz */
    --c-bg-elev:   #10141f;   /* angehobene Flächen */
    --c-bg-card:   rgba(255, 255, 255, 0.03);
    --c-line:      rgba(255, 255, 255, 0.08);

    /* Text (Kontrast auf --c-bg: ≥ 12:1 bzw. ≥ 7:1) */
    --c-text:      #e9ecf2;
    --c-text-soft: #a8b0c2;

    /* Marken-Gold (exakter Logo-Verlauf) */
    --gold-1: #a26c28;
    --gold-2: #f0e394;
    --gold-3: #aa7934;
    --gold-gradient: linear-gradient(100deg, var(--gold-1) 0%, var(--gold-2) 50%, var(--gold-3) 100%);
    --gold-text: #e6d288;              /* Akzent-Text, Kontrast ~ 10:1 auf --c-bg */
    --gold-glow: 0 0 0 3px rgba(240, 227, 148, 0.28);

    /* Glassmorphism */
    --glass-bg:     rgba(16, 20, 31, 0.72);
    --glass-border: rgba(240, 227, 148, 0.16);
    --glass-blur:   saturate(160%) blur(18px);

    /* Typografie */
    --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display",
                 "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas, monospace;

    /* Rhythmus */
    --radius:    18px;
    --radius-sm: 12px;
    --space-section: clamp(5rem, 12vw, 9rem);
    --ease-luxe: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- 2. Reset & Basis --------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--c-bg);
    color: var(--c-text);
    font-family: var(--font-sans);
    font-size: 1.0625rem;
    line-height: 1.65;
    letter-spacing: 0.01em;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

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

a { color: var(--gold-text); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--gold-2); }

code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--c-line);
    border-radius: 6px;
    padding: 0.1em 0.4em;
}

/* ---------- 3. A11y: Fokus, Skip-Link, Reduced Motion --------------------- */
:focus-visible {
    outline: 2px solid var(--gold-2);
    outline-offset: 3px;
    box-shadow: var(--gold-glow);
    border-radius: 6px;
}

.skip-link {
    position: absolute;
    left: 1rem;
    top: -4rem;
    z-index: 100;
    padding: 0.6rem 1.1rem;
    background: var(--c-bg-elev);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--c-text);
    transition: top 0.25s var(--ease-luxe);
}
.skip-link:focus { top: 1rem; }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .reveal { opacity: 1 !important; transform: none !important; }
    [data-parallax] { transform: none !important; }
}

/* ---------- 4. Buttons ----------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.9rem;
    border-radius: 999px;
    border: 1px solid transparent;
    font: inherit;
    font-weight: 600;
    letter-spacing: 0.02em;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.25s var(--ease-luxe),
                box-shadow 0.25s var(--ease-luxe),
                background-color 0.25s var(--ease-luxe),
                border-color 0.25s var(--ease-luxe);
}

.btn--gold {
    background: var(--gold-gradient);
    color: #17130a;                       /* dunkler Text auf Gold: Kontrast > 8:1 */
    box-shadow: 0 10px 30px rgba(170, 121, 52, 0.25);
}
.btn--gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 38px rgba(240, 227, 148, 0.32);
}
.btn--gold:active { transform: translateY(0); }

.btn--ghost {
    background: transparent;
    color: var(--c-text);
    border-color: var(--c-line);
}
.btn--ghost:hover {
    border-color: var(--glass-border);
    background: rgba(240, 227, 148, 0.06);
    color: var(--gold-2);
}

.btn--sm { padding: 0.55rem 1.3rem; font-size: 0.95rem; }
.btn--lg { padding: 1.05rem 2.4rem; font-size: 1.1rem; }

/* ---------- 5. Header (Glassmorphism) -------------------------------------- */
.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 50;
    background: transparent;
    border-bottom: 1px solid transparent;
    transition: background-color 0.35s var(--ease-luxe),
                border-color 0.35s var(--ease-luxe),
                backdrop-filter 0.35s var(--ease-luxe);
}
.site-header.is-scrolled {
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border-bottom-color: var(--c-line);
}

.site-header__inner {
    max-width: 1200px;
    margin-inline: auto;
    padding: 0.9rem clamp(1rem, 4vw, 2rem);
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.site-header__brand { display: inline-flex; }
.site-header__logo { height: 26px; width: auto; }   /* 7,5:1 → Breite ≈ 195 px */

.site-nav { margin-left: auto; }
.site-nav__list {
    display: flex;
    gap: 1.75rem;
    margin: 0;
    padding: 0;
    list-style: none;
}
.site-nav__link {
    color: var(--c-text-soft);
    text-decoration: none;
    font-size: 0.97rem;
    transition: color 0.25s var(--ease-luxe);
}
.site-nav__link:hover { color: var(--gold-2); }

@media (max-width: 720px) {
    .site-nav { display: none; }          /* One-Pager: CTA + Footer-Anker genügen */
    .site-header__inner { justify-content: space-between; }
}

/* ---------- 6. Hero ---------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100svh;
    display: grid;
    place-items: center;
    overflow: hidden;
    isolation: isolate;
}

.hero__glow {
    position: absolute;
    inset: -20% -10% auto;
    height: 80vh;
    background:
        radial-gradient(600px 380px at 50% 18%, rgba(240, 227, 148, 0.10), transparent 70%),
        radial-gradient(900px 520px at 78% 62%, rgba(162, 108, 40, 0.14), transparent 72%);
    z-index: -1;
    pointer-events: none;
    will-change: transform;
}

.hero__grid-lines {
    position: absolute;
    inset: 0;
    z-index: -1;
    background-image:
        linear-gradient(var(--c-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--c-line) 1px, transparent 1px);
    background-size: 72px 72px;
    -webkit-mask-image: radial-gradient(75% 60% at 50% 40%, #000 0%, transparent 100%);
    mask-image: radial-gradient(75% 60% at 50% 40%, #000 0%, transparent 100%);
    opacity: 0.45;
    pointer-events: none;
    will-change: transform;
}

.hero__inner {
    max-width: 860px;
    padding: clamp(6rem, 14vh, 9rem) clamp(1rem, 5vw, 2rem) 6rem;
    text-align: center;
}

.hero__logo {
    height: clamp(34px, 5.5vw, 52px);       /* Verhältnis 7,5:1 bleibt erhalten */
    width: auto;
    margin-inline: auto;
    filter: drop-shadow(0 0 22px rgba(240, 227, 148, 0.22));
}

.hero__title {
    margin: 2.2rem 0 0;
    font-size: clamp(2.1rem, 5.4vw, 3.6rem);
    font-weight: 700;
    line-height: 1.12;
    letter-spacing: -0.02em;
}

.text-gold {
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero__sub {
    max-width: 620px;
    margin: 1.4rem auto 0;
    color: var(--c-text-soft);
    font-size: clamp(1.05rem, 2vw, 1.2rem);
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.9rem;
    margin-top: 2.4rem;
}

/* Apple-typischer Scroll-Indikator */
.scroll-indicator {
    position: absolute;
    left: 50%;
    bottom: 2rem;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--c-text-soft);
    text-decoration: none;
    font-size: 0.78rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}
.scroll-indicator__mouse {
    width: 24px;
    height: 38px;
    border: 1.5px solid var(--glass-border);
    border-radius: 14px;
    display: grid;
    justify-content: center;
    padding-top: 7px;
}
.scroll-indicator__dot {
    width: 4px;
    height: 8px;
    border-radius: 4px;
    background: var(--gold-2);
    animation: scroll-dot 2.1s var(--ease-luxe) infinite;
}
@keyframes scroll-dot {
    0%   { transform: translateY(0);    opacity: 1; }
    70%  { transform: translateY(12px); opacity: 0; }
    100% { transform: translateY(0);    opacity: 0; }
}

/* ---------- 7. Sektionen ------------------------------------------------------ */
.section { padding-block: var(--space-section); }
.section--alt { background: var(--c-bg-elev); border-block: 1px solid var(--c-line); }
.section--cta { text-align: center; }

.section__inner {
    max-width: 1200px;
    margin-inline: auto;
    padding-inline: clamp(1rem, 4vw, 2rem);
}
.section__inner--narrow { max-width: 720px; }

.eyebrow {
    margin: 0 0 0.8rem;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--gold-text);
}

.section__title {
    margin: 0 0 1.2rem;
    font-size: clamp(1.7rem, 3.8vw, 2.6rem);
    font-weight: 700;
    letter-spacing: -0.015em;
    line-height: 1.15;
}

.section__lead {
    max-width: 640px;
    margin: 0 0 2.5rem;
    color: var(--c-text-soft);
    font-size: 1.1rem;
}
.section--cta .section__lead { margin-inline: auto; }

/* ---------- 8. Service-Cards --------------------------------------------------- */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 1.4rem;
    margin-top: 3rem;
}

.card {
    position: relative;
    padding: 2rem 1.8rem;
    background: var(--c-bg-card);
    border: 1px solid var(--c-line);
    border-radius: var(--radius);
    transition: transform 0.35s var(--ease-luxe),
                border-color 0.35s var(--ease-luxe),
                box-shadow 0.35s var(--ease-luxe);
}
.card:hover {
    transform: translateY(-6px);
    border-color: var(--glass-border);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45),
                0 0 0 1px rgba(240, 227, 148, 0.08) inset;
}
.card::after {                              /* goldene Top-Linie beim Hover */
    content: "";
    position: absolute;
    inset: 0 15% auto;
    height: 1px;
    background: var(--gold-gradient);
    opacity: 0;
    transition: opacity 0.35s var(--ease-luxe);
}
.card:hover::after { opacity: 1; }

.card__icon {
    width: 56px;
    height: 56px;
    display: grid;
    place-items: center;
    border-radius: var(--radius-sm);
    background: rgba(240, 227, 148, 0.07);
    border: 1px solid var(--glass-border);
    margin-bottom: 1.3rem;
}

.card__title { margin: 0 0 0.6rem; font-size: 1.25rem; font-weight: 650; }
.card__text  { margin: 0 0 1.1rem; color: var(--c-text-soft); }

.card__list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.45rem;
    font-size: 0.95rem;
    color: var(--c-text-soft);
}
.card__list li {
    padding-left: 1.3rem;
    position: relative;
}
.card__list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 14px;
    height: 2px;
    background: var(--gold-gradient);
}

/* ---------- 9. Tech-Stack-Grid --------------------------------------------------- */
.stack-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    margin: 3rem 0 0;
    padding: 0;
    list-style: none;
}

.stack-grid__item {
    display: grid;
    justify-items: center;
    gap: 0.8rem;
    padding: 1.6rem 1rem;
    background: var(--c-bg-card);
    border: 1px solid var(--c-line);
    border-radius: var(--radius-sm);
    color: var(--c-text-soft);
    font-size: 0.92rem;
    letter-spacing: 0.03em;
    transition: transform 0.3s var(--ease-luxe),
                border-color 0.3s var(--ease-luxe),
                color 0.3s var(--ease-luxe);
}
.stack-grid__item:hover {
    transform: translateY(-4px);
    border-color: var(--glass-border);
    color: var(--gold-2);
}
.stack-grid__item img { width: 48px; height: 48px; object-fit: contain; }

/* ---------- 10. Prinzipien --------------------------------------------------------- */
.principles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.4rem;
    margin: 2.5rem 0 0;
}
.principles__item {
    padding: 1.6rem;
    border-left: 2px solid transparent;
    border-image: var(--gold-gradient) 1;
    border-image-width: 0 0 0 2px;
    background: var(--c-bg-card);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.principles__item dt { font-weight: 650; margin-bottom: 0.5rem; }
.principles__item dd { margin: 0; color: var(--c-text-soft); font-size: 0.98rem; }

/* ---------- 11. Switch/Toggle (Vorgabe: Icon LINKS, Text RECHTS) -------------------- */
.switch {
    display: grid;
    grid-template-columns: auto 1fr;      /* Spalte 1 = Toggle, Spalte 2 = Text */
    align-items: start;
    gap: 0.9rem;
    cursor: pointer;
    margin-top: 0.4rem;
}

.switch__input {
    position: absolute;
    width: 1px; height: 1px;
    clip-path: inset(50%);
    overflow: hidden;
    white-space: nowrap;
}

.switch__track {
    width: 46px;
    height: 26px;
    margin-top: 2px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.10);
    border: 1px solid var(--c-line);
    position: relative;
    transition: background-color 0.3s var(--ease-luxe),
                border-color 0.3s var(--ease-luxe);
}
.switch__thumb {
    position: absolute;
    top: 2px; left: 2px;
    width: 20px; height: 20px;
    border-radius: 50%;
    background: var(--c-text-soft);
    transition: transform 0.3s var(--ease-luxe), background-color 0.3s var(--ease-luxe);
}

.switch__input:checked + .switch__track {
    background: var(--gold-gradient);
    border-color: transparent;
}
.switch__input:checked + .switch__track .switch__thumb {
    transform: translateX(20px);
    background: #17130a;
}
.switch__input:focus-visible + .switch__track {
    outline: 2px solid var(--gold-2);
    outline-offset: 3px;
    box-shadow: var(--gold-glow);
}

.switch__text {
    font-size: 0.92rem;
    color: var(--c-text-soft);
    line-height: 1.55;
}

/* ---------- 12. Kontakt-Modal (natives <dialog>, Glassmorphism) --------------------- */
.contact-modal {
    border: none;
    padding: 0;
    background: transparent;
    max-width: min(92vw, 560px);
    width: 100%;
}
.contact-modal::backdrop {
    background: rgba(4, 6, 12, 0.66);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}

.contact-modal__glass {
    position: relative;
    padding: clamp(1.6rem, 4vw, 2.4rem);
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: calc(var(--radius) + 4px);
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.6);
    color: var(--c-text);
    max-height: 88vh;
    overflow-y: auto;
}

.contact-modal[open] {
    animation: modal-in 0.4s var(--ease-luxe);
}
@keyframes modal-in {
    from { opacity: 0; transform: translateY(16px) scale(0.98); }
    to   { opacity: 1; transform: none; }
}

.contact-modal__close {
    position: absolute;
    top: 1rem; right: 1rem;
    width: 40px; height: 40px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    border: 1px solid var(--c-line);
    background: rgba(255, 255, 255, 0.05);
    color: var(--c-text-soft);
    cursor: pointer;
    transition: color 0.25s var(--ease-luxe), border-color 0.25s var(--ease-luxe);
}
.contact-modal__close:hover { color: var(--gold-2); border-color: var(--glass-border); }

.contact-modal__title { margin: 0 0 0.4rem; font-size: 1.5rem; font-weight: 700; }
.contact-modal__sub   { margin: 0 0 1.6rem; color: var(--c-text-soft); font-size: 0.97rem; }

/* Formularfelder – Apple-softe Inputs mit Gold-Glow im Fokus */
.contact-form { display: grid; gap: 1.1rem; }
.contact-form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.1rem;
}
@media (max-width: 560px) {
    .contact-form__row { grid-template-columns: 1fr; }
}

.field { display: grid; gap: 0.4rem; }
.field__label { font-size: 0.88rem; font-weight: 600; color: var(--c-text-soft); }

.field__input {
    width: 100%;
    font: inherit;
    color: var(--c-text);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--c-line);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    transition: border-color 0.25s var(--ease-luxe), box-shadow 0.25s var(--ease-luxe);
}
.field__input:focus {
    outline: none;
    border-color: var(--gold-2);
    box-shadow: 0 0 0 3px rgba(240, 227, 148, 0.22),
                0 0 24px rgba(240, 227, 148, 0.12);
}
.field__input--area { resize: vertical; min-height: 130px; }
.field__input--select {
    appearance: none;
    background-image: linear-gradient(45deg, transparent 50%, var(--gold-text) 50%),
                      linear-gradient(135deg, var(--gold-text) 50%, transparent 50%);
    background-position: calc(100% - 20px) 55%, calc(100% - 14px) 55%;
    background-size: 6px 6px;
    background-repeat: no-repeat;
}
.field__input--select option { background: var(--c-bg-elev); color: var(--c-text); }

.field__error {
    min-height: 1em;
    margin: 0;
    font-size: 0.83rem;
    color: #f2a6a6;                        /* Kontrast ≥ 7:1 auf dunklem Grund */
}
.field__input[aria-invalid="true"] { border-color: #c96a6a; }

.contact-form__actions { margin-top: 0.4rem; }
.contact-form__status {
    min-height: 1.2em;
    margin: 0;
    font-size: 0.95rem;
}
.contact-form__status.is-success { color: var(--gold-2); }
.contact-form__status.is-error   { color: #f2a6a6; }

/* Honeypot – für Menschen unsichtbar, ohne display:none (Bots prüfen das) */
.hp-field {
    position: absolute !important;
    width: 1px; height: 1px;
    clip-path: inset(50%);
    overflow: hidden;
}

/* ---------- 13. Legal-Seiten (Lesbarkeits-optimiert) --------------------------------- */
.legal { padding: calc(var(--space-section) + 3rem) 0 var(--space-section); }

.legal__article {
    max-width: 74ch;
    margin-inline: auto;
    padding-inline: clamp(1rem, 4vw, 2rem);
}

.legal__header {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--c-line);
    position: relative;
}
.legal__header::after {
    content: "";
    position: absolute;
    left: 0; bottom: -1px;
    width: 96px; height: 1px;
    background: var(--gold-gradient);
}

.legal__title {
    margin: 0 0 0.6rem;
    font-size: clamp(1.9rem, 4.5vw, 2.6rem);
    font-weight: 700;
    letter-spacing: -0.015em;
}
.legal__updated { margin: 0; color: var(--c-text-soft); font-size: 0.92rem; }

.legal__section { margin-bottom: 2.6rem; }
.legal__section h2 {
    font-size: 1.25rem;
    font-weight: 650;
    margin: 0 0 0.8rem;
    color: var(--gold-text);
}
.legal__section p, .legal__section li { color: var(--c-text); }
.legal__section ul { padding-left: 1.3rem; display: grid; gap: 0.5rem; }

/* ---------- 14. Footer ------------------------------------------------------------------ */
.site-footer {
    border-top: 1px solid var(--c-line);
    background: var(--c-bg-elev);
    padding: 3.5rem 0 2.5rem;
}
.site-footer__inner {
    max-width: 1200px;
    margin-inline: auto;
    padding-inline: clamp(1rem, 4vw, 2rem);
    display: grid;
    gap: 2rem;
}
.site-footer__logo { height: 20px; width: auto; opacity: 0.9; }
.site-footer__claim { margin: 0.9rem 0 0; color: var(--c-text-soft); font-size: 0.95rem; }

.site-footer__list {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
    list-style: none;
}
.site-footer__list a {
    color: var(--c-text-soft);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.25s var(--ease-luxe);
}
.site-footer__list a:hover { color: var(--gold-2); }

.site-footer__copy { margin: 0; color: var(--c-text-soft); font-size: 0.85rem; }

/* ---------- 15. Scroll-Reveal (Intersection Observer) ------------------------------------- */
/* Progressive Enhancement: Elemente werden NUR versteckt, wenn JS aktiv ist.
   main.js setzt <html class="js-reveal"> (deferred, vor First Paint).
   Ohne JS bleibt sämtlicher Inhalt sichtbar – kein Inline-Script nötig (CSP). */
.js-reveal .reveal {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity 0.8s var(--ease-luxe), transform 0.8s var(--ease-luxe);
}
.js-reveal .reveal[data-reveal-delay="1"] { transition-delay: 0.12s; }
.js-reveal .reveal[data-reveal-delay="2"] { transition-delay: 0.24s; }
.js-reveal .reveal[data-reveal-delay="3"] { transition-delay: 0.36s; }

.js-reveal .reveal.is-visible {
    opacity: 1;
    transform: none;
}