/* iota plus: ein Stylesheet für alle Seiten. Dunkles Grundthema, Akzent Türkis -> Blau. */
:root {
  --bg: #070b14;
  --bg2: #0b1220;
  --card: #0f1828;
  --line: #1c2a40;
  --text: #e6edf7;
  --muted: #94a3b8;
  --accent: #5eead4;
  --accent2: #3b82f6;
  --grad: linear-gradient(135deg, #5eead4 0%, #3b82f6 100%);
  --warn: #fbbf24;
  --radius: 18px;
  --font: "Inter", "Segoe UI Variable", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 var(--font); -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { display: block; }
.wrap { width: min(1160px, 100% - 40px); margin-inline: auto; }
.narrow { width: min(820px, 100% - 40px); }

/* Kopfleiste */
.topbar { position: sticky; top: 0; z-index: 20; background: rgba(7, 11, 20, .72); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid transparent; transition: border-color .2s; }
.topbar.scrolled { border-bottom-color: var(--line); }
.bar { display: flex; align-items: center; gap: 28px; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; font-size: 19px; letter-spacing: -.01em; }
.brand:hover { text-decoration: none; }
.brand b { font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; margin-left: 4px; }
.links { display: flex; gap: 24px; margin-left: auto; }
.links a { color: var(--muted); font-size: 15px; }
.links a:hover { color: var(--text); text-decoration: none; }
.bar-end { display: flex; align-items: center; gap: 14px; }
.links:empty + .bar-end { margin-left: auto; }
.lang { color: var(--muted); font-size: 13px; font-weight: 600; border: 1px solid var(--line); border-radius: 8px; padding: 4px 8px; }
.lang:hover { color: var(--text); text-decoration: none; border-color: #2c3f5e; }

/* Knöpfe */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; cursor: pointer; font: 600 16px/1 var(--font); color: #04121a; background: var(--grad); padding: 15px 24px; border-radius: 12px; box-shadow: 0 8px 30px -10px rgba(94, 234, 212, .55); transition: transform .15s, box-shadow .15s; }
.btn:hover { text-decoration: none; transform: translateY(-1px); box-shadow: 0 12px 34px -10px rgba(94, 234, 212, .7); }
.btn-sm { padding: 10px 16px; font-size: 14px; border-radius: 10px; }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--line); box-shadow: none; }
.btn-ghost:hover { border-color: #2c3f5e; box-shadow: none; }
.btn[disabled] { opacity: .6; cursor: wait; }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 84px 0 40px; }
.hero::before { content: ""; position: absolute; inset: -40% -10% auto auto; width: 900px; height: 900px; background: radial-gradient(circle, rgba(59, 130, 246, .22), transparent 60%); pointer-events: none; }
.hero::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 56px 56px; opacity: .25; mask-image: radial-gradient(ellipse at 70% 30%, #000 0%, transparent 65%); -webkit-mask-image: radial-gradient(ellipse at 70% 30%, #000 0%, transparent 65%); pointer-events: none; }
.hero-in { position: relative; z-index: 1; display: grid; grid-template-columns: 1.25fr 1fr; gap: 56px; align-items: center; }
.eyebrow, .label { font: 600 13px/1 var(--font); letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin: 0 0 18px; }
h1 { font-size: clamp(40px, 6vw, 70px); line-height: 1.04; letter-spacing: -.035em; margin: 0 0 22px; font-weight: 800; }
h1 em { font-style: normal; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
h2 { font-size: clamp(30px, 4vw, 44px); line-height: 1.12; letter-spacing: -.025em; margin: 0 0 16px; font-weight: 750; }
h3 { font-size: 18px; line-height: 1.3; margin: 0 0 8px; letter-spacing: -.01em; }
.lede { color: var(--muted); font-size: 19px; max-width: 640px; margin: 0 0 30px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.chips { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 28px 0 0; }
.chips li { font-size: 13px; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 5px 12px; background: rgba(15, 24, 40, .6); }

.panel { background: linear-gradient(180deg, rgba(15, 24, 40, .95), rgba(11, 18, 32, .95)); border: 1px solid var(--line); border-radius: 20px; padding: 20px 22px 22px; box-shadow: 0 40px 80px -40px rgba(0, 0, 0, .8), 0 0 0 1px rgba(94, 234, 212, .04); transform: perspective(1200px) rotateY(-6deg) rotateX(3deg); }
.panel-head { display: flex; align-items: center; gap: 6px; padding-bottom: 14px; border-bottom: 1px solid var(--line); margin-bottom: 8px; }
.panel-head span { width: 10px; height: 10px; border-radius: 50%; background: #23324a; }
.panel-head b { margin-left: 10px; font-size: 13px; color: var(--muted); font-weight: 600; }
.panel dl { margin: 0; }
.panel dl div { display: grid; grid-template-columns: 90px 1fr; gap: 12px; padding: 12px 0; border-bottom: 1px dashed var(--line); font-size: 15px; }
.panel dt { color: var(--muted); }
.panel dd { margin: 0; }
.panel-status { display: flex; align-items: center; gap: 10px; margin-top: 16px; font-size: 14px; color: var(--accent); }
.panel-status i { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(94, 234, 212, .6); animation: puls 2s infinite; }
@keyframes puls { 70% { box-shadow: 0 0 0 10px rgba(94, 234, 212, 0); } 100% { box-shadow: 0 0 0 0 rgba(94, 234, 212, 0); } }

.proof { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(4, 1fr); margin: 64px 0 0; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(11, 18, 32, .7); }
.proof div { padding: 20px 24px; border-left: 1px solid var(--line); }
.proof div:first-child { border-left: 0; }
.proof dt { color: var(--muted); font-size: 13px; }
.proof dd { margin: 4px 0 0; font-weight: 650; font-size: 17px; }

/* Abschnitte */
.sec { padding: 96px 0; }
.sec-alt { background: var(--bg2); border-block: 1px solid var(--line); }
.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 40px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; transition: transform .2s, border-color .2s; }
.card:hover { transform: translateY(-3px); border-color: #2c3f5e; }
.card p { color: var(--muted); font-size: 15px; margin: 0; }
.card-ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: rgba(94, 234, 212, .08); border: 1px solid rgba(94, 234, 212, .2); color: var(--accent); margin-bottom: 18px; }
.ico { width: 22px; height: 22px; }
.card-wallet { border-color: rgba(251, 191, 36, .25); }
.card-wallet .card-ico { color: var(--warn); background: rgba(251, 191, 36, .08); border-color: rgba(251, 191, 36, .25); }
.more { display: inline-block; margin-top: 14px; font-size: 14px; font-weight: 600; }

.werte { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; margin-top: 36px; }
.werte div { border-top: 2px solid; border-image: var(--grad) 1; padding-top: 18px; }
.werte p { color: var(--muted); font-size: 15px; margin: 0; }

.steps { list-style: none; padding: 0; margin: 36px 0 0; display: grid; gap: 22px; }
.steps li { display: grid; grid-template-columns: 48px 1fr; gap: 16px; }
.steps .n { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; font: 700 14px/1 ui-monospace, "Cascadia Code", Consolas, monospace; color: var(--accent); border: 1px solid var(--line); background: var(--card); }
.steps p { color: var(--muted); margin: 0; font-size: 15px; }
.steps-row { grid-template-columns: repeat(4, 1fr); gap: 28px; }
.steps-row li { grid-template-columns: 1fr; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.promise { list-style: none; padding: 0; margin: 36px 0 22px; display: grid; gap: 12px; }
.promise li { position: relative; padding: 14px 16px 14px 46px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; font-size: 15px; }
.promise li::before { content: ""; position: absolute; left: 16px; top: 17px; width: 16px; height: 16px; border-radius: 50%; background: var(--grad); -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3.5 8.5l3 3 6-7' fill='none' stroke='%23000' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3.5 8.5l3 3 6-7' fill='none' stroke='%23000' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat; }
.warn { border: 1px solid rgba(251, 191, 36, .35); background: rgba(251, 191, 36, .06); border-left: 4px solid var(--warn); border-radius: 12px; padding: 18px 20px; }
.warn b { color: var(--warn); }
.warn p { margin: 6px 0 0; font-size: 15px; color: #d6dbe4; }

.faq { margin-top: 30px; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 20px 40px 20px 0; font-weight: 600; font-size: 17px; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 16px; font-size: 24px; color: var(--accent); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0 0 20px; color: var(--muted); }

/* Kontakt */
.contact { background: radial-gradient(ellipse at 10% 0%, rgba(94, 234, 212, .08), transparent 55%), var(--bg2); border-top: 1px solid var(--line); }
.mail { color: var(--muted); }
.mail a { font-size: 20px; font-weight: 650; }
.form { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 28px; display: grid; gap: 16px; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form label { display: grid; gap: 7px; font-size: 14px; color: var(--muted); }
.form input, .form select, .form textarea { width: 100%; font: 16px/1.4 var(--font); color: var(--text); background: #0a1322; border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.form input:focus, .form select:focus, .form textarea:focus { outline: 2px solid rgba(94, 234, 212, .5); outline-offset: 1px; border-color: transparent; }
.form textarea { resize: vertical; }
.form .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.msg { margin: 0; min-height: 1.4em; font-size: 15px; }
.msg.ok { color: var(--accent); }
.msg.err { color: #fca5a5; }
.fine { margin: 0; font-size: 13px; color: var(--muted); }

/* Rechtliches */
.legal { padding: 64px 0 96px; }
.legal h1 { font-size: clamp(34px, 5vw, 48px); }
.legal h2 { font-size: 21px; margin: 36px 0 8px; letter-spacing: -.01em; }
.legal p, .legal li { color: #cbd5e1; }
.ph { background: rgba(251, 191, 36, .14); color: var(--warn); border-radius: 4px; padding: 0 4px; font-size: .92em; }

/* Fuss */
.foot { border-top: 1px solid var(--line); padding: 36px 0 44px; }
.foot-in { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.foot p { color: var(--muted); font-size: 14px; margin: 10px 0 0; }
.foot-links { display: grid; gap: 6px; text-align: right; font-size: 14px; color: var(--muted); }
.foot-links a { color: var(--muted); }
.foot-links a:hover { color: var(--text); }

/* Einblenden beim Scrollen (nur mit JS, sonst sofort sichtbar) */
.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .js .reveal { opacity: 1; transform: none; transition: none; } .panel-status i { animation: none; } }

/* Tablet / Handy */
@media (max-width: 1020px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .werte, .steps-row { grid-template-columns: repeat(2, 1fr); }
  .hero-in { grid-template-columns: 1fr; }
  .panel { transform: none; max-width: 520px; }
}
@media (max-width: 760px) {
  .links { display: none; }
  .bar-end { margin-left: auto; }
  .hero { padding: 48px 0 24px; }
  .hero-panel { display: none; }
  .lede { font-size: 17px; }
  .proof { grid-template-columns: 1fr 1fr; margin-top: 40px; }
  .proof div:nth-child(3) { border-left: 0; }
  .proof div:nth-child(n+3) { border-top: 1px solid var(--line); }
  .sec { padding: 64px 0; }
  .grid, .werte, .steps-row, .split, .form .row { grid-template-columns: 1fr; }
  .split { gap: 8px; }
  .foot-links { text-align: left; }
  .actions .btn { flex: 1 1 100%; }
}