/* ---------------------------------------------------------------------------
   SafeFile — Landingpage
   Siehe DESIGN.md: monochrome Basis (Ink/Paper/Slate/Silver/White) + ein
   Signal-Gruen als durchgehender CTA-Akzent. Wiederverwendet die Farb-/Font-
   Werte aus static/styles.css (App), damit Landingpage und Produkt wie eine
   Marke wirken.
   --------------------------------------------------------------------------- */
:root {
  --color-ink: #0f2429;
  --color-signal: #0d7a63;
  --color-signal-dark: #0a5f4d;
  --color-signal-tint: #e2f2ee;
  --color-white: #ffffff;
  --color-paper: #eef2f0;
  --color-slate: #4a5f64;
  --color-silver: #d3ddda;
  --color-danger: #b4231f;

  --font-display: "Space Grotesk", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --shadow-card: rgba(15, 36, 41, 0.06) 0px 4px 16px 0px;
  --shadow-card-hover: rgba(15, 36, 41, 0.10) 0px 8px 24px 0px;

  --page-max-width: 1180px;
  --section-gap: 96px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: 0.01em;
  margin: 0;
  color: var(--color-ink);
}
p { margin: 0; max-width: 68ch; }
a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--color-signal);
  outline-offset: 2px;
  border-radius: 4px;
}

.wrap { max-width: var(--page-max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: var(--section-gap) 0; }
.section-head { max-width: 640px; margin: 0 0 40px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
  display: inline-block; font-family: var(--font-mono); font-size: 12px; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-signal);
  background: var(--color-signal-tint); padding: 5px 12px; border-radius: 9999px; margin: 0 0 16px;
}
.section-head h2 { font-size: clamp(28px, 3.6vw, 40px); }
.section-head p { margin-top: 14px; font-size: 18px; color: var(--color-slate); }

/* --- Buttons --------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-body); font-weight: 600; font-size: 16px;
  padding: 14px 28px; border-radius: 9999px; border: 1px solid transparent;
  text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: transform 180ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 180ms cubic-bezier(0.16, 1, 0.3, 1), background 150ms ease;
}
.btn-primary { background: var(--color-signal); color: var(--color-white); }
.btn-primary:hover { background: var(--color-signal-dark); transform: translateY(-1px); box-shadow: var(--shadow-card-hover); }
.btn-ghost { background: transparent; color: var(--color-ink); border-color: var(--color-slate); }
.btn-ghost:hover { background: var(--color-white); transform: translateY(-1px); }
.btn-header {
  border-radius: 8px; padding: 9px 18px; font-size: 14px;
}
.btn-sm { padding: 10px 20px; font-size: 14px; }

/* --- Header ------------------------------------------------------------------ */
.site-header {
  position: sticky; top: 0; z-index: 40; background: rgba(238, 242, 240, 0.85);
  backdrop-filter: saturate(140%) blur(10px); -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 200ms ease, box-shadow 200ms ease;
}
.site-header.scrolled { border-bottom-color: var(--color-silver); box-shadow: var(--shadow-card); }
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between; padding-top: 16px; padding-bottom: 16px;
}
.brand { display: flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 14px;
  font-weight: 500; letter-spacing: 0.04em; text-transform: uppercase; text-decoration: none; color: var(--color-ink); }
.brand img { width: 22px; height: 22px; border-radius: 6px; }
.site-nav { display: flex; align-items: center; gap: 32px; }
.site-nav__links { display: flex; align-items: center; gap: 24px; }
.site-nav__links a { font-size: 15px; text-decoration: none; color: var(--color-ink); }
.site-nav__links a:hover { color: var(--color-signal); }
.site-nav__actions { display: flex; align-items: center; gap: 12px; }
.link-quiet { font-size: 15px; text-decoration: none; color: var(--color-slate); }
.link-quiet:hover { color: var(--color-ink); }

/* --- Hero -------------------------------------------------------------------- */
.hero { padding: 72px 0 var(--section-gap); }
.hero__grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.hero__eyebrow { margin-bottom: 20px; }
.hero h1 { font-size: clamp(34px, 5vw, 56px); letter-spacing: 0.02em; }
.hero__sub { margin-top: 20px; font-size: 19px; color: var(--color-slate); max-width: 52ch; }
.hero__ctas { margin-top: 32px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.hero__note { margin-top: 16px; font-size: 13px; color: var(--color-slate); }

/* --- Trial widget -------------------------------------------------------------*/
.trial-card {
  background: var(--color-white); border-radius: 12px; box-shadow: var(--shadow-card);
  padding: 20px; position: sticky; top: 96px;
}
.trial-card__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.trial-card__head h2 { font-size: 15px; font-family: var(--font-body); font-weight: 600; }
.trial-card__badge {
  font-family: var(--font-mono); font-size: 11px; color: var(--color-signal); background: var(--color-signal-tint);
  padding: 3px 10px; border-radius: 9999px; text-transform: uppercase; letter-spacing: 0.06em;
}
.trial-drop {
  display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center;
  gap: 6px; padding: 36px 20px; border: 1.5px dashed var(--color-slate); border-radius: 10px;
  cursor: pointer; background: var(--color-paper); transition: border-color 150ms ease, background 150ms ease;
}
.trial-drop:hover, .trial-drop.hot { border-color: var(--color-signal); background: var(--color-signal-tint); }
.trial-drop:has(input:focus-visible) { outline: 2px solid var(--color-signal); outline-offset: 2px; border-color: var(--color-signal); }
.trial-drop strong { font-family: var(--font-display); font-size: 16px; font-weight: 600; }
.trial-drop span { font-size: 13px; color: var(--color-slate); }
.trial-drop input { position: absolute; width: 1px; height: 1px; opacity: 0; overflow: hidden; }

.trial-confirm { display: none; flex-direction: column; gap: 8px; }
.trial-confirm.active { display: flex; }
.trial-confirm__file {
  font-family: var(--font-mono); font-size: 12.5px; color: var(--color-slate);
  background: var(--color-paper); border-radius: 6px; padding: 6px 10px; margin: 0;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.trial-confirm label { font-size: 13.5px; font-weight: 600; color: var(--color-ink); margin-top: 4px; }
.trial-confirm input[type="text"] {
  font: inherit; font-size: 15px; padding: 10px 12px; border-radius: 8px;
  border: 1.5px solid var(--color-slate); background: var(--color-white);
}
.trial-confirm input[type="text"]:focus-visible { outline: 2px solid var(--color-signal); outline-offset: 1px; border-color: var(--color-signal); }
.trial-confirm__hint { font-size: 12.5px; color: var(--color-slate); margin: 0; }
.trial-confirm__actions { display: flex; align-items: center; gap: 14px; margin-top: 6px; flex-wrap: wrap; }

.trial-status { display: none; align-items: center; gap: 10px; padding: 20px 4px; font-size: 14px; color: var(--color-slate); }
.trial-status.active { display: flex; }
.spinner {
  width: 18px; height: 18px; border-radius: 50%; border: 2px solid var(--color-silver);
  border-top-color: var(--color-signal); animation: spin 0.7s linear infinite; flex: 0 0 auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

.trial-result { display: none; }
.trial-result.active { display: block; }
.trial-result__preview {
  font-family: var(--font-mono); font-size: 12.5px; line-height: 1.6; white-space: pre-wrap; word-break: break-word;
  background: var(--color-ink); color: #dce8e6; border-radius: 8px; padding: 16px; max-height: 260px; overflow-y: auto;
  margin-bottom: 14px;
}
.trial-result__preview .tok { color: var(--color-signal-tint); background: var(--color-signal-dark); border-radius: 4px; padding: 0 3px; }
.trial-result__cta { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.trial-result__cta p { font-size: 13px; color: var(--color-slate); max-width: 32ch; }

.trial-error { display: none; color: var(--color-danger); font-size: 13.5px; padding: 14px 2px; }
.trial-error.active { display: block; }
.trial-reset { background: none; border: none; color: var(--color-signal); font: inherit; font-size: 13px; text-decoration: underline; cursor: pointer; padding: 0; margin-top: 10px; }

/* --- Problem / Solution ------------------------------------------------------ */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split--reverse .split__visual { order: -1; }
.split__visual { background: var(--color-white); border-radius: 12px; box-shadow: var(--shadow-card); padding: 28px; }
.split ul { margin: 20px 0 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 14px; }
.split li { display: flex; gap: 12px; font-size: 16px; color: var(--color-slate); }
.split li::before {
  content: ""; flex: 0 0 auto; width: 6px; height: 6px; border-radius: 50%; background: var(--color-signal);
  margin-top: 9px;
}

.redact-demo__line { font-family: var(--font-mono); font-size: 14px; line-height: 2.1; }
.redact-demo__before { color: var(--color-slate); }
.redact-demo__before .hit { background: var(--color-signal-tint); color: var(--color-ink); border-radius: 3px; padding: 0 2px; }
.redact-demo__arrow { text-align: center; color: var(--color-slate); font-size: 13px; margin: 10px 0; }
.redact-demo__after { color: var(--color-ink); }
.redact-demo__after .tok {
  background: var(--color-signal); color: var(--color-white); border-radius: 4px; padding: 1px 5px; font-weight: 500;
}

/* --- How it works (process flow, not a card grid) ---------------------------- */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.flow__step { position: relative; padding: 0 20px; }
.flow__step:first-child { padding-left: 0; }
.flow__step:last-child { padding-right: 0; }
.flow__num {
  width: 36px; height: 36px; border-radius: 50%; background: var(--color-ink); color: var(--color-white);
  display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-weight: 600;
  font-size: 15px; margin-bottom: 18px; position: relative; z-index: 1;
}
.flow__step::after {
  content: ""; position: absolute; top: 18px; left: calc(50% + 38px); right: calc(-50% + 18px);
  height: 1px; background: var(--color-silver);
}
.flow__step:last-child::after { display: none; }
.flow__step h3 { font-size: 17px; margin-bottom: 8px; }
.flow__step p { font-size: 14.5px; color: var(--color-slate); }

/* --- Use cases ---------------------------------------------------------------- */
.usecases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.usecase-card {
  background: var(--color-white); border-radius: 12px; box-shadow: var(--shadow-card); padding: 28px;
  transition: transform 200ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 200ms cubic-bezier(0.16, 1, 0.3, 1);
}
.usecase-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-card-hover); }
.usecase-card__tag {
  font-family: var(--font-mono); font-size: 11px; color: var(--color-signal); text-transform: uppercase; letter-spacing: 0.06em;
}
.usecase-card h3 { font-size: 19px; margin: 10px 0 10px; }
.usecase-card p { font-size: 15px; color: var(--color-slate); }

/* --- Pricing ------------------------------------------------------------------ */
.pricing-card {
  background: var(--color-white); border-radius: 12px; box-shadow: var(--shadow-card);
  padding: 40px; display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px;
}
.pricing-card__included h3, .pricing-card__usage h3 { font-size: 13px; font-family: var(--font-mono);
  text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-slate); margin-bottom: 16px; }
.pricing-card__included ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.pricing-card__included li { display: flex; gap: 10px; font-size: 15px; }
.pricing-card__included li svg { flex: 0 0 auto; color: var(--color-signal); margin-top: 3px; }
.pricing-card__usage { border-left: 1px solid var(--color-silver); padding-left: 48px; }
.price-line { display: flex; align-items: baseline; gap: 8px; margin-bottom: 8px; }
.price-line .amount { font-family: var(--font-display); font-size: 40px; font-weight: 600; }
.price-line .unit { font-size: 15px; color: var(--color-slate); }
.pricing-card__usage p.detail { font-size: 14.5px; color: var(--color-slate); margin: 8px 0 24px; }

/* --- Final CTA ----------------------------------------------------------------*/
.final-cta {
  background: var(--color-ink); border-radius: 20px; padding: 64px 48px; text-align: center;
}
.final-cta h2 { color: var(--color-white); font-size: clamp(26px, 3.4vw, 36px); }
.final-cta p { color: #a9bdb9; margin: 14px auto 0; font-size: 17px; }
.final-cta .hero__ctas { justify-content: center; margin-top: 28px; }
.final-cta .btn-ghost { color: var(--color-white); border-color: #3a4c4f; }
.final-cta .btn-ghost:hover { background: rgba(255,255,255,0.06); }

/* --- Footer ---------------------------------------------------------------- */
.site-footer { padding: 56px 0 40px; border-top: 1px solid var(--color-silver); margin-top: var(--section-gap); }
.site-footer .wrap { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.site-footer nav { display: flex; gap: 24px; flex-wrap: wrap; }
.site-footer a { font-size: 14px; text-decoration: none; color: var(--color-slate); }
.site-footer a:hover { color: var(--color-ink); }
.site-footer .copy { font-size: 13px; color: var(--color-slate); }

/* --- Scroll reveal ----------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 500ms cubic-bezier(0.16, 1, 0.3, 1), transform 500ms cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* --- Responsive ---------------------------------------------------------------*/
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
  .trial-card { position: static; margin-top: 40px; }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .split--reverse .split__visual { order: 0; }
  .flow { grid-template-columns: 1fr 1fr; row-gap: 32px; }
  .flow__step::after { display: none; }
  .usecases { grid-template-columns: 1fr; }
  .pricing-card { grid-template-columns: 1fr; padding: 28px; }
  .pricing-card__usage { border-left: none; padding-left: 0; border-top: 1px solid var(--color-silver); padding-top: 28px; }
  .site-nav__links { display: none; }
}
@media (max-width: 560px) {
  .flow { grid-template-columns: 1fr; }
  .final-cta { padding: 40px 24px; }
  .hero__ctas .btn { width: 100%; }
}