/* ============================================================
   Buccloud — Design System 2027
   Basiert auf dem Brand-Kit "brand-2027" (Strata Stack).
   Farben & Fonts kommen aus den Brand-Tokens (colors.css / fonts.css),
   hier liegen nur Layout, Komponenten und das Strata-Motiv.
   ============================================================ */

/* ---- Fallbacks, falls die Brand-Tokens (CDN) nicht laden ---- */
:root {
  --bc-violet: #6A4FD0;
  --bc-blue:   #4467C4;
  --bc-berry:  #C34D72;
  --bc-ink:    #191F36;
  --bc-paper:  #FFFFFF;
  --bc-fog:    #F6F7FA;
  --bc-grey:   #E4E7EC;
  --bc-slate:  #5C6474;
  --bc-text:   #23262E;
  --bc-night:  #14171F;
  --bc-success:#2F7D4F;
  --bc-warning:#B26A08;
  --bc-danger: #B3364C;
  --bc-info:   #4467C4;
  --bc-font-brand: 'Manrope', 'Segoe UI', Arial, sans-serif;
  --bc-font-code:  'IBM Plex Mono', Consolas, monospace;
}

/* ---- Semantische Flächen-Variablen (Light) ---- */
:root {
  --surface:        var(--bc-paper);
  --surface-muted:  var(--bc-fog);
  --surface-invert: var(--bc-ink);
  --text:           var(--bc-ink);
  --text-soft:      var(--bc-slate);
  --text-invert:    #FFFFFF;
  --line:           var(--bc-grey);
  --line-strong:    #D4D9E2;
  --accent:         var(--bc-blue);
  --accent-ink:     #FFFFFF;

  --container: 1140px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --radius-sm: 10px;
  --radius:    16px;
  --radius-lg: 24px;
  --shadow-1: 0 1px 2px rgba(25,31,54,.06), 0 4px 16px rgba(25,31,54,.05);
  --shadow-2: 0 8px 40px rgba(25,31,54,.10);
  --ease: cubic-bezier(.22,.61,.36,1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --surface:        var(--bc-night);
    --surface-muted:  #1B2030;
    --surface-invert: #0F1218;
    --text:           #EEF1F7;
    --text-soft:      #9AA2B4;
    --text-invert:    #EEF1F7;
    --line:           #2A3042;
    --line-strong:    #333B50;
    --accent:         var(--bc-blue); /* colors.css hebt Blau auf Dunkel bereits an */
    --accent-ink:     #0F1218;
  }
}

/* ============================================================
   Reset / Basis
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--bc-font-brand);
  font-weight: 400;
  font-size: clamp(1rem, .96rem + .2vw, 1.075rem);
  line-height: 1.65;
  color: var(--text);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-padding-top: 84px;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { font-family: var(--bc-font-brand); color: var(--text); margin: 0; line-height: 1.1; }
h1 { font-weight: 800; letter-spacing: -.02em; }
h2 { font-weight: 800; letter-spacing: -.015em; }
h3 { font-weight: 600; }
p  { margin: 0; }

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

:focus-visible {
  outline: 3px solid var(--bc-blue);
  outline-offset: 2px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(3.5rem, 7vw, 6.5rem); }
.section--tight { padding-block: clamp(2.5rem, 5vw, 4rem); }

/* Eyebrow / technische Labels — die "Infra-Stimme" (Plex Mono) */
.eyebrow {
  font-family: var(--bc-font-code);
  font-weight: 600;
  font-size: .74rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--text-soft);
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  margin: 0 0 1.1rem;
}
.eyebrow::before {
  content: "";
  width: 1.6rem; height: 2px;
  background: var(--bc-blue);
  border-radius: 2px;
}

.lead { font-size: clamp(1.05rem, 1rem + .4vw, 1.3rem); color: var(--text-soft); max-width: 46ch; }

/* ============================================================
   Strata-Motiv — die drei versetzten Balken
   ============================================================ */
.strata {
  display: inline-grid;
  gap: 4px;
  align-content: center;
}
.strata > i {
  display: block;
  height: 8px;
  border-radius: 4px;
}
.strata > i:nth-child(1) { width: 34%; margin-left: 17%; background: var(--bc-violet); }
.strata > i:nth-child(2) { width: 66%; margin-left: 0;   background: var(--bc-blue); }
.strata > i:nth-child(3) { width: 50%; margin-left: 8%;  background: var(--bc-berry); }

/* Trenner zwischen Sektionen */
.strata-rule {
  width: 56px; height: 26px;
  --w1: 34%; --w2: 66%; --w3: 50%;
}
.strata-divider {
  border: 0;
  height: 1px;
  background: var(--line);
  margin: 0;
}

/* ============================================================
   Navigation
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s var(--ease), background .25s var(--ease);
}
.nav[data-scrolled="true"] { border-bottom-color: var(--line); }
.nav__inner {
  display: flex; align-items: center; gap: 1.5rem;
  min-height: 68px;
}
.brand { display: inline-flex; align-items: center; gap: .55rem; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand__mark { height: 30px; width: auto; }
.brand__mark .wordmark { fill: currentColor; }
.brand__mark .bar-v { fill: var(--bc-violet); }
.brand__mark .bar-b { fill: var(--bc-blue); }
.brand__mark .bar-y { fill: var(--bc-berry); }

.nav__spacer { flex: 1; }
.nav__links { display: flex; align-items: center; gap: .35rem; list-style: none; margin: 0; padding: 0; }
.nav__links a {
  color: var(--text); font-weight: 600; font-size: .95rem;
  padding: .5rem .8rem; border-radius: 8px;
  transition: background .2s var(--ease);
}
.nav__links a:hover { background: var(--surface-muted); text-decoration: none; }
.nav__links .btn { display: none; }        /* auf Desktop nur der dedizierte CTA rechts */
.nav__links a.btn:hover { background: var(--bc-blue); }

.nav__toggle {
  display: none;
  width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 10px;
  background: transparent; cursor: pointer; padding: 0;
  align-items: center; justify-content: center; color: var(--text);
}
.nav__toggle svg { width: 22px; height: 22px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-family: var(--bc-font-brand); font-weight: 600; font-size: .95rem;
  padding: .68rem 1.25rem; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .15s var(--ease), background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
  white-space: nowrap;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn--primary { background: var(--bc-blue); color: #fff; }
.btn--primary:hover { background: #3a59ad; }
.btn--ghost { border-color: var(--line-strong); color: var(--text); background: transparent; }
.btn--ghost:hover { border-color: var(--bc-blue); color: var(--bc-blue); }
.btn--ondark { background: #fff; color: var(--bc-ink); }
.btn--ondark:hover { background: #eef1f7; }
.btn--ondark-ghost { border-color: rgba(255,255,255,.28); color: #fff; }
.btn--ondark-ghost:hover { border-color: #fff; background: rgba(255,255,255,.08); }
.btn__arrow { transition: transform .2s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(3px); }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative; overflow: hidden;
  background: var(--bc-ink);
  color: #fff;
  padding-block: clamp(4.5rem, 9vw, 8rem);
  isolation: isolate;
}
.hero::before { /* dezente Schichtstruktur im Hintergrund */
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(60% 90% at 85% 10%, rgba(106,79,208,.18), transparent 60%),
    radial-gradient(50% 80% at 10% 90%, rgba(195,77,114,.14), transparent 60%);
}
.hero__grid {
  display: grid; gap: clamp(2.5rem, 5vw, 4rem);
  grid-template-columns: 1.15fr .85fr; align-items: center;
}
.hero .eyebrow { color: rgba(255,255,255,.66); }
.hero .eyebrow::before { background: var(--bc-blue); }
.hero__title {
  font-size: clamp(2.4rem, 1.6rem + 3.4vw, 4rem);
  line-height: 1.04;
  margin: 0 0 1.4rem;
  color: #fff;
}
.hero__title .accent { color: var(--bc-blue); }
.hero__text { color: rgba(255,255,255,.78); font-size: clamp(1.05rem, 1rem + .4vw, 1.25rem); max-width: 46ch; }
.hero__cta { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
.hero__meta {
  margin-top: 2.5rem; display: flex; flex-wrap: wrap; gap: 1.5rem;
  font-family: var(--bc-font-code); font-size: .8rem; letter-spacing: .04em;
  color: rgba(255,255,255,.6);
}
.hero__meta span { display: inline-flex; align-items: center; gap: .5rem; }
.hero__meta span::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--bc-success); }

/* Hero-Motiv: große Strata-Balken, animiert */
.hero__mark {
  display: grid; gap: 14px; justify-items: start;
  padding: clamp(1.5rem, 3vw, 2.5rem);
}
.hero__mark i {
  display: block; height: clamp(20px, 3.4vw, 34px); border-radius: 999px;
  transform-origin: left center;
}
.hero__mark i:nth-child(1) { width: 46%; background: var(--bc-violet); }
.hero__mark i:nth-child(2) { width: 92%; background: var(--bc-blue); }
.hero__mark i:nth-child(3) { width: 68%; background: var(--bc-berry); }
.hero__mark--anim i { animation: barIn .9s var(--ease) both; }
.hero__mark--anim i:nth-child(1) { animation-delay: .05s; }
.hero__mark--anim i:nth-child(2) { animation-delay: .18s; }
.hero__mark--anim i:nth-child(3) { animation-delay: .31s; }
@keyframes barIn {
  from { transform: scaleX(0); opacity: 0; }
  to   { transform: scaleX(1); opacity: 1; }
}
.hero__mark-caption {
  font-family: var(--bc-font-code); font-size: .72rem; letter-spacing: .16em;
  text-transform: uppercase; color: rgba(255,255,255,.5); margin-top: 1.4rem;
}

/* ============================================================
   Section-Kopf
   ============================================================ */
.sec-head { max-width: 60ch; margin-bottom: clamp(2rem, 4vw, 3rem); }
.sec-head--center { margin-inline: auto; text-align: center; }
.sec-head--center .eyebrow { justify-content: center; }
.sec-head__title { font-size: clamp(1.8rem, 1.4rem + 1.8vw, 2.6rem); margin-bottom: .9rem; }
.sec-head__text { color: var(--text-soft); font-size: 1.075rem; }

/* ============================================================
   System-Karten (Suite / Exchange / Cloudstatus)
   ============================================================ */
.systems { background: var(--surface-muted); }
.sys-grid { display: grid; gap: 1.5rem; grid-template-columns: repeat(3, 1fr); }
.sys-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-lg); overflow: hidden;
  display: flex; flex-direction: column;
  box-shadow: var(--shadow-1);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.sys-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); border-color: var(--line-strong); }
.sys-card__media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--bc-ink); }
.sys-card__media img { width: 100%; height: 100%; object-fit: cover; opacity: .92; transition: transform .5s var(--ease); }
.sys-card:hover .sys-card__media img { transform: scale(1.04); }
.sys-card__tag {
  position: absolute; top: 1rem; left: 1rem;
  font-family: var(--bc-font-code); font-weight: 600; font-size: .7rem; letter-spacing: .1em;
  text-transform: uppercase; color: #fff;
  padding: .32rem .7rem; border-radius: 999px;
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.sys-card__body { padding: 1.4rem 1.5rem 1.6rem; display: flex; flex-direction: column; flex: 1; }
.sys-card__title { font-size: 1.3rem; font-weight: 800; margin-bottom: .6rem; display: flex; align-items: center; gap: .6rem; }
.sys-card__title .dot { width: 10px; height: 10px; border-radius: 3px; }
.sys-card__text { color: var(--text-soft); font-size: .98rem; margin-bottom: 1.3rem; flex: 1; }
.sys-card__foot { margin-top: auto; }

/* Farbcode je Karte = Strata-Balken */
.sys-card--v .sys-card__tag  { background: color-mix(in srgb, var(--bc-violet) 82%, #000 8%); }
.sys-card--v .dot            { background: var(--bc-violet); }
.sys-card--b .sys-card__tag  { background: color-mix(in srgb, var(--bc-blue) 82%, #000 8%); }
.sys-card--b .dot            { background: var(--bc-blue); }
.sys-card--y .sys-card__tag  { background: color-mix(in srgb, var(--bc-berry) 82%, #000 8%); }
.sys-card--y .dot            { background: var(--bc-berry); }

/* ============================================================
   Cloud-Dienste (Drive / Identity / Talk / Terminals)
   ============================================================ */
.svc-grid { display: grid; gap: 1.25rem; grid-template-columns: repeat(2, 1fr); }
.svc {
  display: grid; grid-template-columns: auto 1fr; gap: 1.1rem;
  padding: 1.6rem; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface);
  transition: border-color .25s var(--ease), background .25s var(--ease);
}
.svc:hover { border-color: var(--line-strong); background: var(--surface-muted); }
.svc__icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: grid; place-items: center;
  background: color-mix(in srgb, var(--bc-blue) 10%, transparent);
  color: var(--bc-blue);
  flex-shrink: 0;
}
.svc__icon svg { width: 24px; height: 24px; }
.svc__label {
  font-family: var(--bc-font-code); font-size: .68rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--text-soft); margin-bottom: .25rem;
}
.svc__title { font-size: 1.2rem; font-weight: 800; margin-bottom: .5rem; }
.svc__text { color: var(--text-soft); font-size: .95rem; }

/* ============================================================
   Philosophie
   ============================================================ */
.philo { background: var(--bc-ink); color: #fff; position: relative; overflow: hidden; }
.philo::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(70% 120% at 100% 0%, rgba(68,103,196,.20), transparent 55%);
}
.philo .container { position: relative; z-index: 1; }
.philo__grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.philo .eyebrow { color: rgba(255,255,255,.66); }
.philo__title { font-size: clamp(1.9rem, 1.4rem + 2vw, 2.8rem); color: #fff; }
.philo__lead { color: #fff; font-weight: 600; font-size: 1.2rem; margin-bottom: 1.5rem; }
.philo__text { color: rgba(255,255,255,.76); }
.philo__text p + p { margin-top: 1rem; }
.philo__text strong { color: #fff; font-weight: 700; }
.philo__pillars { display: grid; gap: .8rem; margin-top: 2rem; }
.philo__pillar {
  display: flex; align-items: center; gap: .8rem;
  font-family: var(--bc-font-code); font-size: .82rem; letter-spacing: .04em;
  color: rgba(255,255,255,.85);
  padding: .7rem .9rem; border: 1px solid rgba(255,255,255,.12); border-radius: 10px;
}
.philo__pillar svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--bc-blue); }

/* ============================================================
   Support
   ============================================================ */
.support-grid { display: grid; gap: 1.25rem; grid-template-columns: repeat(4, 1fr); }
.contact {
  padding: 1.5rem; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface);
}
.contact__icon { color: var(--bc-blue); margin-bottom: 1rem; }
.contact__icon svg { width: 26px; height: 26px; }
.contact__label {
  font-family: var(--bc-font-code); font-size: .68rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--text-soft); margin-bottom: .4rem;
}
.contact__value { font-weight: 600; }
.contact__value a { color: var(--text); }
.contact__value a:hover { color: var(--bc-blue); }
.contact--wide { grid-column: span 1; }
.tech-list { list-style: none; margin: .2rem 0 0; padding: 0; color: var(--text-soft); font-size: .92rem; }
.tech-list li { padding: .18rem 0; }

/* ============================================================
   Footer
   ============================================================ */
.footer { background: var(--bc-night); color: rgba(255,255,255,.72); padding-block: clamp(3rem, 6vw, 4.5rem) 2rem; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2rem; }
.footer__brand .brand { color: #fff; margin-bottom: 1rem; }
.footer__brand p { color: rgba(255,255,255,.55); font-size: .92rem; max-width: 30ch; }
.footer h4 {
  font-family: var(--bc-font-code); font-size: .72rem; letter-spacing: .14em;
  text-transform: uppercase; color: rgba(255,255,255,.5); font-weight: 600; margin-bottom: 1rem;
}
.footer ul { list-style: none; margin: 0; padding: 0; }
.footer li { padding: .3rem 0; }
.footer a { color: rgba(255,255,255,.78); font-size: .95rem; }
.footer a:hover { color: #fff; }
.footer__store { display: inline-flex; align-items: center; gap: .5rem; }
.footer__store svg { width: 15px; height: 15px; opacity: .7; }
.footer__bottom {
  margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.1);
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center;
  font-size: .85rem; color: rgba(255,255,255,.5);
}
.footer__legal { display: flex; gap: 1.2rem; flex-wrap: wrap; }

/* ============================================================
   Scroll-Reveal
   ============================================================ */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .08s; }
.reveal[data-d="2"] { transition-delay: .16s; }
.reveal[data-d="3"] { transition-delay: .24s; }

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

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 980px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__mark { justify-items: stretch; max-width: 480px; }
  .philo__grid { grid-template-columns: 1fr; }
  .sys-grid { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; }
  .support-grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 2rem 1.5rem; }
}

@media (max-width: 720px) {
  .nav__links, .nav__cta-desktop { display: none; }
  .nav__toggle { display: inline-flex; }
  .nav[data-open="true"] .nav__links {
    display: flex; flex-direction: column; align-items: stretch;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--surface); border-bottom: 1px solid var(--line);
    padding: .8rem var(--gutter) 1.2rem; gap: .2rem;
    box-shadow: var(--shadow-2);
  }
  .nav[data-open="true"] .nav__links a { padding: .8rem .6rem; border-radius: 10px; }
  .nav[data-open="true"] .nav__links .btn { display: flex; margin-top: .5rem; justify-content: center; }
  .svc-grid { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .support-grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .svc { grid-template-columns: 1fr; }
  .svc__icon { margin-bottom: .2rem; }
}