/* Kashani Holding — gleiche Design-Sprache wie www.kashani-holding.com */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;color-scheme:light dark}
body{
  font-family:"SF Pro Display","SF Pro Text",-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue",Helvetica,Arial,sans-serif;
  font-size:17px;line-height:1.47059;font-weight:400;letter-spacing:-0.022em;
  background:var(--bg);color:var(--fg);overflow-x:hidden;
  transition:background-color .4s ease,color .4s ease;min-height:100vh;
}
:root{
  --bg:#ffffff;--bg-elev:#f5f5f7;--bg-card:#fbfbfd;
  --fg:#1d1d1f;--fg-muted:#6e6e73;--fg-subtle:#86868b;
  --border:rgba(0,0,0,0.08);--border-strong:rgba(0,0,0,0.16);
  --accent:#0071e3;--accent-hover:#0077ed;
  --nav-bg:rgba(251,251,253,0.72);--nav-border:rgba(0,0,0,0.10);
  --shadow-lg:0 20px 60px rgba(0,0,0,0.10);
  --logo-filter:brightness(0);
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#000000;--bg-elev:#1d1d1f;--bg-card:#161617;
    --fg:#f5f5f7;--fg-muted:#a1a1a6;--fg-subtle:#86868b;
    --border:rgba(255,255,255,0.10);--border-strong:rgba(255,255,255,0.20);
    --accent:#2997ff;--accent-hover:#47a5ff;
    --nav-bg:rgba(22,22,23,0.72);--nav-border:rgba(255,255,255,0.10);
    --shadow-lg:0 20px 60px rgba(0,0,0,0.50);
    --logo-filter:brightness(0) invert(1);
  }
}
html[data-theme="light"]{--bg:#fff;--bg-elev:#f5f5f7;--bg-card:#fbfbfd;--fg:#1d1d1f;--fg-muted:#6e6e73;--accent:#0071e3;--accent-hover:#0077ed;--logo-filter:brightness(0)}
html[data-theme="dark"]{--bg:#000;--bg-elev:#1d1d1f;--bg-card:#161617;--fg:#f5f5f7;--fg-muted:#a1a1a6;--accent:#2997ff;--accent-hover:#47a5ff;--logo-filter:brightness(0) invert(1)}

.nav{position:fixed;top:0;left:0;right:0;z-index:100;height:52px;background:var(--nav-bg);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--nav-border)}
.nav-inner{max-width:1200px;margin:0 auto;height:100%;display:flex;align-items:center;justify-content:space-between;padding:0 24px}
.nav-logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit}
.nav-logo img{height:24px;filter:var(--logo-filter)}
.nav-logo-text{font-size:17px;font-weight:500;letter-spacing:-0.01em;color:var(--fg)}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-link{font-size:13px;color:var(--fg);opacity:.85;text-decoration:none}
.nav-link:hover{opacity:1;color:var(--accent)}
.theme-toggle{background:none;border:none;cursor:pointer;color:var(--fg);width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center}
.theme-toggle:hover{background:rgba(127,127,127,0.10)}
.theme-toggle .sun{display:none}.theme-toggle .moon{display:block}
html[data-theme="dark"] .theme-toggle .sun{display:block}
html[data-theme="dark"] .theme-toggle .moon{display:none}
@media(prefers-color-scheme:dark){html:not([data-theme="light"]) .theme-toggle .sun{display:block}html:not([data-theme="light"]) .theme-toggle .moon{display:none}}

.hero{padding-top:120px;padding-bottom:80px;text-align:center;position:relative;overflow:hidden;min-height:calc(100vh - 52px);display:flex;flex-direction:column;justify-content:center}
.hero-bg{position:absolute;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(circle at 20% 30%,rgba(0,113,227,0.10),transparent 50%),radial-gradient(circle at 80% 70%,rgba(175,82,222,0.08),transparent 50%)}
@media(prefers-color-scheme:dark){.hero-bg{background:radial-gradient(circle at 20% 30%,rgba(41,151,255,0.18),transparent 50%),radial-gradient(circle at 80% 70%,rgba(191,90,242,0.12),transparent 50%)}}
html[data-theme="dark"] .hero-bg{background:radial-gradient(circle at 20% 30%,rgba(41,151,255,0.18),transparent 50%),radial-gradient(circle at 80% 70%,rgba(191,90,242,0.12),transparent 50%)}

.container{max-width:1200px;margin:0 auto;padding:0 24px}
.hero-logo{width:clamp(120px,18vw,200px);height:auto;margin:0 auto 40px;filter:var(--logo-filter)}
.hero h1{font-size:clamp(32px,5vw,48px);font-weight:700;letter-spacing:-0.04em;margin-bottom:16px;color:var(--fg)}
.hero .lead{max-width:520px;margin:0 auto 32px;color:var(--fg-muted);font-size:18px;line-height:1.45}
.eyebrow{display:inline-block;font-size:13px;font-weight:500;letter-spacing:0.04em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}

.login-card{max-width:440px;margin:0 auto;background:var(--bg-card);border:1px solid var(--border);border-radius:20px;padding:32px;box-shadow:var(--shadow-lg);text-align:left}
.login-card h2{font-size:22px;font-weight:600;margin-bottom:8px;letter-spacing:-0.02em}
.login-card .sub{font-size:15px;color:var(--fg-muted);margin-bottom:24px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:980px;font-size:16px;font-weight:500;text-decoration:none;border:none;cursor:pointer;transition:transform .15s,background .15s}
.btn-primary{background:var(--accent);color:#fff;width:100%}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--fg);border:1px solid var(--border)}
.btn-ghost:hover{background:rgba(127,127,127,0.08)}

.alert{padding:12px 14px;border-radius:12px;font-size:14px;margin-bottom:20px;line-height:1.45}
.alert-error{background:rgba(255,59,48,0.12);color:#ff3b30}
.alert-warn{background:rgba(255,149,0,0.12);color:#ff9500}
@media (prefers-color-scheme:dark){.alert-error{color:#ff6961}.alert-warn{color:#ffb340}}

.page{padding-top:72px;padding-bottom:64px}
.page-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:40px;padding-bottom:24px;border-bottom:1px solid var(--border)}
.page-head h1{font-size:clamp(28px,4vw,40px);font-weight:700;letter-spacing:-0.03em}
.user-meta{font-size:14px;color:var(--fg-muted)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.tile{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:20px;transition:transform .15s,border-color .15s}
.tile:hover{transform:translateY(-2px);border-color:var(--accent)}
.tile h3{font-size:17px;font-weight:600;margin-bottom:6px;letter-spacing:-0.02em}
.tile p{font-size:14px;color:var(--fg-muted);line-height:1.45}
.tile a{font-size:14px;font-weight:500;color:var(--accent);text-decoration:none;display:inline-block;margin-top:12px}
.panel{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:24px;margin-top:24px}
.panel h2{font-size:18px;font-weight:600;margin-bottom:12px}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{font-size:12px;padding:4px 10px;border-radius:980px;background:rgba(127,127,127,0.12)}
.kv{display:grid;grid-template-columns:140px 1fr;gap:8px 16px;font-size:14px;margin-top:12px}
.kv dt{color:var(--fg-muted)}
.site-footer{margin-top:56px;padding-top:40px;border-top:1px solid var(--border)}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:28px 32px;margin-bottom:28px}
.footer-col h3{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:0.06em;color:var(--fg-muted);margin-bottom:12px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.footer-col a{font-size:14px;color:var(--fg);text-decoration:none;opacity:.9}
.footer-col a:hover{color:var(--accent);opacity:1}
.foot{margin-top:0;text-align:center;font-size:12px;color:var(--fg-subtle)}
.foot a{color:var(--accent);text-decoration:none}

.tabs{display:flex;gap:8px;margin-bottom:28px;border-bottom:1px solid var(--border);padding-bottom:0}
.tab{
  appearance:none;background:none;border:none;border-bottom:2px solid transparent;
  color:var(--fg-muted);cursor:pointer;font:inherit;font-size:15px;font-weight:500;
  padding:12px 16px;margin-bottom:-1px;transition:color .15s,border-color .15s;
}
.tab:hover{color:var(--fg)}
.tab.active{color:var(--accent);border-bottom-color:var(--accent)}
.tab-panel{display:none}
.tab-panel.active{display:block}
.programme-intro{margin-bottom:20px;font-size:15px;color:var(--fg-muted)}
.programme-grid{margin-bottom:24px}
.btn-sm{padding:8px 16px;font-size:14px;width:auto}
.programme-frame-wrap{
  margin-top:8px;border:1px solid var(--border);border-radius:16px;overflow:hidden;
  background:var(--bg-card);box-shadow:var(--shadow-lg);
}
.programme-frame-head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding:12px 16px;border-bottom:1px solid var(--border);background:var(--bg-elev);
}
.programme-frame-hint{font-size:12px;color:var(--fg-muted);font-weight:400}
.programme-frame{
  display:block;width:100%;height:min(75vh,900px);border:0;background:var(--bg);
}