/* =============================================================================
   smart-bn.com — Seiten-Stil (originalgetreu zur bestehenden Seite)
   Schriften: Poppins (Headlines) + Roboto (Text), selbst gehostet.
   Farben aus dem Logo. Design bewusst nah am Bestand — nur sauber & self-hostbar.
   ============================================================================= */

@import "tokens.css";

/* --- Schriften: selbst gehostet (kein externes CDN, DSGVO-sauber) ----- */
@font-face { font-family:"Poppins"; font-style:normal; font-weight:500; font-display:swap; src:url("../fonts/poppins-500.woff2") format("woff2"); }
@font-face { font-family:"Poppins"; font-style:normal; font-weight:600; font-display:swap; src:url("../fonts/poppins-600.woff2") format("woff2"); }
@font-face { font-family:"Poppins"; font-style:normal; font-weight:700; font-display:swap; src:url("../fonts/poppins-700.woff2") format("woff2"); }
@font-face { font-family:"Roboto"; font-style:normal; font-weight:400; font-display:swap; src:url("../fonts/roboto-400.woff2") format("woff2"); }
@font-face { font-family:"Roboto"; font-style:normal; font-weight:500; font-display:swap; src:url("../fonts/roboto-500.woff2") format("woff2"); }
@font-face { font-family:"Roboto"; font-style:normal; font-weight:700; font-display:swap; src:url("../fonts/roboto-700.woff2") format("woff2"); }

/* --- Marken-Farben (aus Logo/Bestand) -------------------------------- */
:root {
  --c-bg: #ffffff;
  --c-ink: #030303;         /* Ueberschriften */
  --c-body: #323335;        /* Fliesstext */
  --c-muted: #6b6c6e;
  --c-line: #e6e6e6;
  --c-magenta: #882685;     /* Logo-Magenta, Vollband */
  --c-green: #a4c520;
  --c-navy: #1c2f6b;
  --c-teal: #12789e;
  --c-lightblue: #b9d7e8;
  --c-link: #882685;
  --c-link-hover: #6a1d68;
  --c-btn: #030303;
  --c-btn-ink: #ffffff;
  --c-footer: #1a1f25;
  color-scheme: light;
}

/* --- 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;
  background: var(--c-bg);
  color: var(--c-body);
  font-family: var(--t-font-body);
  font-size: var(--t-fs-base);
  line-height: var(--t-lh-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4 { font-family: var(--t-font-head); color: var(--c-ink); line-height: var(--t-lh-tight); margin: 0; }
h1 { font-size: clamp(2rem, 5.2vw, var(--t-fs-2xl)); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3.6vw, var(--t-fs-xl)); font-weight: 600; }
h3 { font-size: var(--t-fs-lg); font-weight: 600; }
p { margin: 0 0 var(--t-space-4); }
strong { font-weight: 700; color: var(--c-ink); }
a { color: var(--c-link); text-underline-offset: .15em; }
a:hover { color: var(--c-link-hover); }
:focus-visible { outline: 2px solid var(--c-magenta); outline-offset: 3px; }
img { max-width: 100%; height: auto; display: block; }

/* --- Layout ----------------------------------------------------------- */
.container { width: 100%; max-width: var(--t-container); margin-inline: auto; padding-inline: clamp(1.25rem, 5vw, 2.5rem); }
.section { padding-block: clamp(var(--t-space-7), 8vw, var(--t-space-9)); }
.measure { max-width: var(--t-measure); }
.center { text-align: center; }
.center .measure { margin-inline: auto; }

/* --- Skip-Link -------------------------------------------------------- */
.skip-link { position: absolute; left: -9999px; top: 0; background: var(--c-ink); color: #fff; padding: .5rem 1rem; z-index: 200; }
.skip-link:focus { left: 1rem; top: 1rem; }

/* --- Kopfzeile -------------------------------------------------------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.92); backdrop-filter: saturate(1.05) blur(6px); border-bottom: var(--t-border) solid var(--c-line); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--t-space-6); min-height: 128px; }
.brand-logo { display: inline-flex; align-items: center; flex: 0 0 auto; }
.brand-logo img { height: clamp(66px, 6vw, 90px); width: auto; max-width: none; }
.nav { display: flex; align-items: center; gap: clamp(0.8rem, 1.6vw, 1.5rem); }
.nav a { color: var(--c-ink); text-decoration: none; font-family: var(--t-font-body); font-size: 0.9rem; font-weight: 500; padding-block: .35rem; border-bottom: 2px solid transparent; white-space: nowrap; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--c-magenta); border-bottom-color: var(--c-magenta); }
.nav-toggle { display: none; background: transparent; border: 0; cursor: pointer; padding: .5rem; }
.nav-toggle span { display: block; width: 26px; height: 2px; background: var(--c-ink); margin: 5px 0; transition: transform .2s var(--t-ease), opacity .2s var(--t-ease); }

/* --- Buttons (schwarz, 5px Radius wie Original) ----------------------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .6ch; font-family: var(--t-font-body); font-size: var(--t-fs-sm); font-weight: 500; padding: .8rem 1.6rem; border-radius: var(--t-radius); text-decoration: none; border: 2px solid var(--c-btn); background: var(--c-btn); color: var(--c-btn-ink); cursor: pointer; transition: background-color .18s var(--t-ease), color .18s var(--t-ease); }
.btn:hover { background: #fff; color: var(--c-btn); }
.btn--ghost { background: transparent; color: var(--c-ink); }
.btn--ghost:hover { background: var(--c-ink); color: #fff; }

/* --- Hero ------------------------------------------------------------- */
.hero { position: relative; overflow: hidden; }
.hero__inner { position: relative; z-index: 2; padding-block: clamp(var(--t-space-8), 11vw, calc(var(--t-space-9) + var(--t-space-6))); max-width: 780px; margin-inline: auto; text-align: center; }
.hero__bg { position: absolute; inset: 0; z-index: 1; pointer-events: none; background-image: url("../img/hero.jpg"); background-repeat: no-repeat; background-position: center; background-size: auto 108%; opacity: .17; }
@media (max-width: 720px) { .hero__bg { background-size: auto 70%; background-position: center top 4%; opacity: .12; } }
.hero h1 { margin-bottom: var(--t-space-5); }
.hero__claim { display: flex; flex-direction: column; align-items: center; gap: .2em; font-family: var(--t-font-head); font-weight: 600; font-size: clamp(1.4rem, 4.2vw, 2rem); color: var(--c-ink); }

/* --- Intro-Block (zentriert) ----------------------------------------- */
.intro { text-align: center; }
.intro h2 { font-weight: 700; font-size: clamp(1.8rem, 4.4vw, 2.4rem); margin-bottom: var(--t-space-4); }
.intro__sub { font-family: var(--t-font-head); font-weight: 600; font-size: var(--t-fs-md); color: var(--c-ink); margin-bottom: var(--t-space-6); }

/* --- Prosa ------------------------------------------------------------ */
.prose { max-width: 720px; margin-inline: auto; }
.prose p { max-width: none; }
.prose h2 { margin-top: var(--t-space-7); margin-bottom: var(--t-space-4); }
.prose h2:first-child { margin-top: 0; }
.prose ul { max-width: none; margin: 0 0 var(--t-space-4); padding-left: 0; list-style: none; }
.prose ul li { position: relative; padding-left: 1.6rem; margin-bottom: var(--t-space-2); }
.prose ul li::before { content: ""; position: absolute; left: 0; top: .72em; width: 8px; height: 8px; background: var(--c-magenta); border-radius: 2px; transform: rotate(45deg); }
/* Zentrierte Prosa-Bloecke (harmonischer auf breiten Seiten): Ueberschriften zentriert, Text in zentrierter Lesespalte */
.prose--center { max-width: 780px; margin-inline: auto; }
.prose--center > h2 { text-align: center; }
.prose--center > h2::after { content: ""; display: block; width: 56px; height: 3px; background: var(--c-magenta); margin: var(--t-space-3) auto 0; border-radius: 2px; }

/* --- Magenta-Vollband ------------------------------------------------- */
.band { background: var(--c-magenta); color: #fff; text-align: center; padding-block: clamp(var(--t-space-7), 8vw, var(--t-space-8)); }
.band__eyebrow { font-family: var(--t-font-head); font-weight: 600; font-size: var(--t-fs-lg); margin-bottom: var(--t-space-2); }
.band h2 { color: #fff; font-weight: 700; font-size: clamp(1.6rem, 4vw, 2.2rem); }

/* Tools-Plattform: kompakte Loesungs-Karten */
.tool-cards { display: grid; grid-template-columns: 1fr; gap: var(--t-space-4); max-width: 760px; margin: var(--t-space-5) auto 0; }
@media (min-width: 640px) { .tool-cards { grid-template-columns: repeat(3, 1fr); } }
.tool-card { border: 1px solid var(--c-line); border-radius: var(--t-radius-lg); padding: var(--t-space-4); background: #fff; }
.tool-card__tag { display: block; font-family: var(--t-font-head); font-weight: 600; color: var(--c-ink); margin-bottom: var(--t-space-1); }
.tool-card p { margin: 0; font-size: var(--t-fs-sm); color: var(--c-body); line-height: var(--t-lh-snug); }

/* Kundenlogin / Demo-Anfrage */
.access-grid { display: grid; grid-template-columns: 1fr; gap: var(--t-space-5); max-width: 820px; margin: 0 auto; }
@media (min-width: 680px) { .access-grid { grid-template-columns: 1fr 1fr; } }
.access-card { border: 1px solid var(--c-line); border-radius: var(--t-radius-lg); padding: clamp(var(--t-space-5), 4vw, var(--t-space-6)); background: #fff; display: flex; flex-direction: column; gap: var(--t-space-3); text-align: center; }
.access-card h3 { margin: 0; }
.access-card p { margin: 0; color: var(--c-body); flex: 1 1 auto; }
.access-card .btn { align-self: center; margin-top: var(--t-space-2); }
.access-card--accent { background: var(--c-magenta); border-color: var(--c-magenta); }
.access-card--accent h3, .access-card--accent p { color: #fff; }
.access-card--accent .btn { background: #fff; color: var(--c-magenta); border-color: #fff; }
.access-card--accent .btn:hover { background: rgba(255,255,255,.88); color: var(--c-magenta); }

/* --- Module ----------------------------------------------------------- */
.modules { display: grid; grid-template-columns: 1fr; gap: clamp(var(--t-space-6), 5vw, var(--t-space-8)); margin-top: var(--t-space-7); }
@media (min-width: 680px) { .modules { grid-template-columns: 1fr 1fr; } }
.module { text-align: center; text-decoration: none; color: inherit; display: flex; flex-direction: column; align-items: center; gap: var(--t-space-3); }
.module__icon { width: clamp(68px, 8vw, 92px); height: auto; transition: transform .2s var(--t-ease); }
.module:hover .module__icon { transform: translateY(-4px); }
.module__title { font-family: var(--t-font-head); font-weight: 600; font-size: var(--t-fs-lg); color: var(--c-ink); }
.module:hover .module__title { color: var(--c-magenta); }
.module__desc { color: var(--c-body); font-size: var(--t-fs-base); max-width: 34ch; margin: 0; }

/* --- Kontakt / Erstgespraech ----------------------------------------- */
.contact { text-align: center; }
.contact__address { font-family: var(--t-font-head); font-weight: 600; color: var(--c-ink); line-height: 1.5; margin-bottom: var(--t-space-6); }
.contact__form { max-width: 560px; margin: var(--t-space-6) auto 0; text-align: left; display: grid; gap: var(--t-space-4); }
.field { display: grid; gap: .4rem; }
.field label { font-size: var(--t-fs-sm); font-weight: 500; color: var(--c-ink); }
.field input, .field textarea { font-family: var(--t-font-body); font-size: var(--t-fs-base); padding: .7rem .9rem; border: var(--t-border) solid #cfcfcf; border-radius: var(--t-radius); background: #fff; color: var(--c-ink); }
.field input:focus, .field textarea:focus { border-color: var(--c-magenta); outline: none; }
.contact__form .btn { justify-self: start; }

/* --- Fusszeile (schwarz, zentriert wie Original) --------------------- */
.site-footer { background: var(--c-footer); color: #c4c8cd; text-align: center; padding-block: var(--t-space-5); font-size: var(--t-fs-sm); }
.site-footer__addr { color: #9aa0a6; font-size: var(--t-fs-sm); margin-bottom: var(--t-space-3); }
.site-footer__links { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--t-space-2) var(--t-space-5); margin-bottom: var(--t-space-3); }
.site-footer__links a { color: #e8e8e8; text-decoration: none; font-size: var(--t-fs-sm); }
.site-footer__links a:hover { color: #fff; text-decoration: underline; }
.site-footer__legal { color: #6f6f6f; font-size: var(--t-fs-xs); }

/* --- Seitenkopf Unterseiten ------------------------------------------ */
.page-head { padding-block: clamp(var(--t-space-7), 9vw, var(--t-space-8)) var(--t-space-5); border-bottom: var(--t-border) solid var(--c-line); }
.page-head .container { max-width: 720px; }
.breadcrumb { font-size: var(--t-fs-xs); color: var(--c-muted); margin-bottom: var(--t-space-4); }
.breadcrumb a { color: var(--c-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--c-magenta); }
.page-head__row { display: flex; align-items: center; gap: clamp(.75rem, 3vw, 1.25rem); flex-wrap: nowrap; }
.page-head__icon { width: 92px; max-width: 92px; height: auto; flex: 0 0 auto; }
.page-head__sub { font-family: var(--t-font-head); font-weight: 600; font-size: var(--t-fs-md); color: var(--c-ink); margin: var(--t-space-4) 0 0; max-width: 46ch; }

/* Campus-Foto (Kontaktbereich) */
.campus-photo { width: 100%; max-width: 820px; margin: 0 auto var(--t-space-6); border-radius: var(--t-radius-lg); display: block; box-shadow: 0 1px 0 var(--c-line); }

/* --- mobiles Menue ---------------------------------------------------- */
@media (max-width: 1024px) {
  .nav-toggle { display: inline-block; }
  .nav { position: fixed; inset: 128px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0; background: #fff; border-bottom: var(--t-border) solid var(--c-line); padding: var(--t-space-2) clamp(1.25rem,5vw,2.5rem) var(--t-space-4); transform: translateY(-130%); transition: transform .22s var(--t-ease); box-shadow: 0 14px 26px rgba(0,0,0,.08); }
  .nav[data-open="true"] { transform: translateY(0); }
  .nav a { padding-block: .85rem; border-bottom: var(--t-border) solid var(--c-line); }
  .nav a:hover, .nav a[aria-current="page"] { border-bottom-color: var(--c-line); }
}