/* ═══════════════════════════════════════════════════
   FAHRSCHULE LANDING — style.css
   Tokens match references/design-system.md (Polyvault brand)
   ═══════════════════════════════════════════════════ */

:root {
  --fs-blue:   #2A7FFF;
  --fs-dark:   #000000;
  --fs-white:  #ffffff;
  --fs-cream:  #F4F1EA;
  --fs-serif:  'Playfair Display', Georgia, serif;
  --fs-sans:   'DM Sans', system-ui, sans-serif;
  --fs-ease:   cubic-bezier(0.16, 1, 0.3, 1);
}

body.fs-page { margin: 0; }
body.fs-page * { box-sizing: border-box; }

.fs-container { max-width: 900px; margin: 0 auto; padding: 0 clamp(20px, 5vw, 64px); }

/* ── Reveal on scroll (transform/opacity only, no layout shift) ── */
.fs-reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--fs-ease), transform 0.7s var(--fs-ease); }
.fs-reveal.fs-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .fs-reveal { opacity: 1; transform: none; transition: none; }
}

/* ── Nav ─────────────────────────────────────────── */
.fs-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: 68px; transition: background 0.3s ease, border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}
.fs-nav.fs-nav--solid { background: rgba(0,0,0,0.85); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom-color: rgba(255,255,255,0.08); }
.fs-nav-inner { max-width: 1200px; margin: 0 auto; padding: 0 clamp(20px, 5vw, 64px); height: 100%; display: flex; align-items: center; justify-content: space-between; }
.fs-nav-logo { font-family: var(--fs-serif); font-weight: 700; font-size: 20px; color: var(--fs-white); text-decoration: none; letter-spacing: -0.01em; }
.fs-nav-dot { color: var(--fs-blue); }
.fs-nav-links { display: flex; align-items: center; gap: 32px; }
.fs-nav-link { font-family: var(--fs-sans); font-size: 13px; font-weight: 500; letter-spacing: 0.04em; color: rgba(255,255,255,0.6); text-decoration: none; transition: color 0.2s; }
.fs-nav-link:hover { color: var(--fs-white); }
.fs-nav-cta { font-family: var(--fs-sans); font-size: 12px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--fs-dark); background: var(--fs-white); padding: 10px 20px; border-radius: 50px; text-decoration: none; transition: transform 0.2s ease; }
.fs-nav-cta:hover { transform: translateY(-1px); }
@media (max-width: 720px) { .fs-nav-links .fs-nav-link { display: none; } }

/* ── Sticky mobile CTA (hidden on desktop, shown after hero on mobile) ── */
.fs-sticky-cta {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 1001;
  padding: 12px clamp(16px, 5vw, 24px) calc(12px + env(safe-area-inset-bottom));
  background: rgba(0,0,0,0.92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid rgba(255,255,255,0.08);
  transform: translateY(100%); transition: transform 0.3s var(--fs-ease);
  display: none;
}
.fs-sticky-cta.fs-sticky-cta--show { transform: translateY(0); }
.fs-sticky-cta .fs-cta-btn--sticky { display: block; width: 100%; text-align: center; }
@media (max-width: 720px) { .fs-sticky-cta { display: block; } }

/* ── CTA button (matches the brand's .pv-cta-btn recipe) ── */
.fs-cta-btn {
  display: inline-block; font-family: var(--fs-sans); font-size: 13px; font-weight: 500;
  letter-spacing: 0.05em; text-transform: uppercase; text-decoration: none;
  background: var(--fs-white); color: var(--fs-dark);
  padding: 16px 32px; border-radius: 50px; border: none; cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.fs-cta-btn:hover { transform: translateY(-2px); box-shadow: 0 0 28px rgba(255,255,255,0.4), 0 0 60px rgba(255,255,255,0.15); }
.fs-cta-btn--form { width: 100%; }
.fs-cta-btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; box-shadow: none; }

/* ── Hero ────────────────────────────────────────── */
.fs-hero { background: var(--fs-dark); min-height: 92vh; display: flex; align-items: center; padding: 120px clamp(20px, 5vw, 64px) 80px; }
.fs-hero-inner { max-width: 820px; margin: 0 auto; text-align: center; }
.fs-hero-headline { font-family: var(--fs-serif); font-weight: 700; font-size: clamp(32px, 5.4vw, 60px); line-height: 1.08; letter-spacing: -0.02em; color: var(--fs-white); margin: 0 0 24px; }
.fs-hero-sub { font-family: var(--fs-sans); font-weight: 300; font-size: clamp(15px, 1.6vw, 18px); line-height: 1.6; color: rgba(255,255,255,0.65); max-width: 640px; margin: 0 auto 40px; }
.fs-hero-actions { display: flex; flex-direction: column; align-items: center; gap: 20px; }
.fs-hero-ghost { font-family: var(--fs-sans); font-size: 13px; color: rgba(255,255,255,0.5); text-decoration: underline; text-underline-offset: 3px; }
.fs-hero-ghost:hover { color: rgba(255,255,255,0.8); }

/* ── Hero mockup visual (abstract "concept preview", no real asset needed) ── */
.fs-mockup { max-width: 460px; margin: 56px auto 0; background: #0a0a0a; border: 1px solid rgba(255,255,255,0.1); border-radius: 14px; overflow: hidden; box-shadow: 0 30px 80px rgba(0,0,0,0.6); }
.fs-mockup-bar { display: flex; gap: 6px; padding: 12px 16px; border-bottom: 1px solid rgba(255,255,255,0.07); }
.fs-mockup-bar span { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,0.18); }
.fs-mockup-body { padding: 28px 24px 32px; }
.fs-mockup-line { height: 12px; border-radius: 4px; background: rgba(255,255,255,0.12); margin-bottom: 10px; }
.fs-mockup-line--title { width: 70%; height: 18px; background: rgba(255,255,255,0.22); }
.fs-mockup-line--sub { width: 45%; }
.fs-mockup-cta { width: 130px; height: 30px; border-radius: 20px; background: var(--fs-blue); margin-top: 18px; }
.fs-mockup-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 22px; }
.fs-mockup-grid div { aspect-ratio: 1; border-radius: 6px; background: rgba(255,255,255,0.07); }

/* ── Video ───────────────────────────────────────── */
.fs-video-section { background: #000; padding: 0 5% 120px; display: flex; align-items: center; justify-content: center; }
.fs-video-win { position: relative; width: 100%; max-width: 1100px; border-radius: 20px; overflow: hidden; box-shadow: 0 0 0 0.5px rgba(255,255,255,0.1), 0 40px 100px rgba(0,0,0,0.8); cursor: pointer; user-select: none; -webkit-user-select: none; }
.fs-video-el { width: 100%; height: auto; display: block; }
.fs-video-controls { position: absolute; bottom: 0; left: 0; right: 0; z-index: 20; background: linear-gradient(transparent, rgba(0,0,0,0.6)); padding: 28px 16px 14px; display: flex; align-items: center; gap: 12px; opacity: 0; pointer-events: none; transition: opacity 0.4s ease; }
.fs-video-controls.fs-video-controls--visible { opacity: 1; pointer-events: all; }
.fs-video-prog { flex: 1; cursor: pointer; padding: 10px 0; margin: -10px 0; }
.fs-video-prog-track { height: 3px; background: rgba(255,255,255,0.2); border-radius: 2px; position: relative; }
.fs-video-prog-fill { position: absolute; top: 0; left: 0; height: 100%; background: rgba(255,255,255,0.88); border-radius: 2px; width: 0%; transition: width 0.1s linear; }
.fs-video-btn { background: none; border: none; color: #fff; cursor: pointer; padding: 0; display: flex; align-items: center; opacity: 0.7; transition: opacity 0.15s; flex-shrink: 0; }
.fs-video-btn:hover { opacity: 1; }
.fs-video-time { color: rgba(255,255,255,0.5); font-size: 11px; font-family: var(--fs-sans); white-space: nowrap; flex-shrink: 0; }
.fs-video-play { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); z-index: 15; width: 76px; height: 76px; border-radius: 50%; background: rgba(255,255,255,0.1); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border: 1.5px solid rgba(255,255,255,0.5); display: flex; align-items: center; justify-content: center; cursor: pointer; transition: opacity 0.3s ease, background 0.2s, transform 0.3s ease; }
.fs-video-play:hover { background: rgba(255,255,255,0.18); transform: translate(-50%,-50%) scale(1.06); }
.fs-video-play.fs-video-play--playing { opacity: 0; pointer-events: none; transform: translate(-50%,-50%) scale(0.88); }

/* ── Body sections ───────────────────────────────── */
.fs-section { padding: clamp(64px, 10vw, 120px) 0; }
body.fs-page .fs-hero, body.fs-page .fs-video-section, body.fs-page .fs-section, body.fs-page .fs-footer { margin: 0 !important; }
body.fs-page .fs-section--light { background: var(--fs-white) !important; }
body.fs-page .fs-section--cream { background: var(--fs-cream) !important; }
body.fs-page .fs-hero { background: var(--fs-dark) !important; }
body.fs-page .fs-video-section { background: #000 !important; }
body.fs-page .fs-footer { background: var(--fs-cream) !important; }
.fs-h2 { font-family: var(--fs-serif); font-weight: 700; font-size: clamp(26px, 3.6vw, 40px); line-height: 1.15; letter-spacing: -0.01em; color: var(--fs-dark); margin: 0 0 24px; }
.fs-h2--sm { font-size: clamp(22px, 2.8vw, 30px); }
.fs-body { font-family: var(--fs-sans); font-weight: 300; font-size: 16px; line-height: 1.7; color: rgba(0,0,0,0.68); margin: 0 0 20px; }

/* ── Diagnosis points ────────────────────────────── */
.fs-point-list { list-style: none; margin: 0 0 28px; padding: 0; display: flex; flex-direction: column; gap: 18px; }
.fs-point { font-family: var(--fs-sans); font-weight: 300; font-size: 16px; line-height: 1.7; color: rgba(0,0,0,0.68); padding-left: 24px; border-left: 2px solid var(--fs-blue); }
.fs-point strong { display: block; font-weight: 500; color: var(--fs-dark); margin-bottom: 4px; }
.fs-personal { font-style: italic; border-left: 2px solid var(--fs-blue); padding-left: 24px; }

/* ── Process ─────────────────────────────────────── */
.fs-process-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 32px; }
.fs-process-step { display: flex; gap: 20px; align-items: flex-start; }
.fs-process-num { font-family: var(--fs-serif); font-weight: 700; font-size: 22px; color: var(--fs-blue); flex-shrink: 0; width: 40px; height: 40px; border: 1.5px solid var(--fs-blue); border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.fs-process-step strong { display: block; font-family: var(--fs-sans); font-weight: 500; font-size: 17px; color: var(--fs-dark); margin-bottom: 4px; }
.fs-process-step p { font-family: var(--fs-sans); font-weight: 300; font-size: 15px; color: rgba(0,0,0,0.6); margin: 0; }

/* ── Risk reversal ───────────────────────────────── */
.fs-risk-card { background: var(--fs-cream); border: 1px solid rgba(0,0,0,0.08); border-radius: 16px; padding: clamp(28px, 5vw, 48px); }
.fs-badge { display: inline-block; font-family: var(--fs-sans); font-size: 12px; font-weight: 500; letter-spacing: 0.04em; color: var(--fs-blue); background: rgba(42,127,255,0.08); border: 1px solid rgba(42,127,255,0.25); padding: 8px 16px; border-radius: 50px; }

/* ── Booking card ────────────────────────────────── */
.fs-booking-card { background: var(--fs-white); border: 1px solid rgba(0,0,0,0.08); border-radius: 20px; padding: clamp(24px, 4vw, 40px); max-width: 520px; margin: 0 auto; }
.fs-hidden { display: none !important; }
.fs-cal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.fs-cal-nav { background: none; border: none; font-size: 16px; cursor: pointer; color: var(--fs-dark); padding: 8px; }
.fs-cal-month { font-family: var(--fs-sans); font-weight: 500; font-size: 15px; color: var(--fs-dark); }
.fs-cal-weekdays { display: grid; grid-template-columns: repeat(7, 1fr); text-align: center; font-family: var(--fs-sans); font-size: 11px; color: rgba(0,0,0,0.4); margin-bottom: 6px; }
.fs-cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.fs-cal-day { aspect-ratio: 1; border: none; background: none; border-radius: 50%; font-family: var(--fs-sans); font-size: 13px; color: var(--fs-dark); cursor: pointer; }
.fs-cal-day:hover:not(:disabled) { background: rgba(42,127,255,0.1); }
.fs-day-empty { visibility: hidden; }
.fs-day-past, .fs-day-sunday, .fs-day-booked { color: rgba(0,0,0,0.2); cursor: not-allowed; }
.fs-day-today { font-weight: 700; }
.fs-day-selected { background: var(--fs-blue); color: #fff; }
.fs-back-btn { background: none; border: none; font-family: var(--fs-sans); font-size: 13px; color: var(--fs-blue); cursor: pointer; padding: 0; margin-bottom: 16px; }
.fs-step-date { font-family: var(--fs-serif); font-weight: 700; font-size: 20px; color: var(--fs-dark); margin-bottom: 4px; }
.fs-slots-hint { font-family: var(--fs-sans); font-size: 12px; color: rgba(0,0,0,0.45); margin-bottom: 14px; }
.fs-slots-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.fs-slot-btn { font-family: var(--fs-sans); font-size: 13px; padding: 12px; border: 1px solid rgba(0,0,0,0.12); border-radius: 10px; background: var(--fs-white); cursor: pointer; transition: border-color 0.2s, background 0.2s; }
.fs-slot-btn:hover { border-color: var(--fs-blue); background: rgba(42,127,255,0.05); }
.fs-slots-empty { grid-column: 1 / -1; font-family: var(--fs-sans); font-size: 13px; color: rgba(0,0,0,0.45); }
.fs-time-summary { font-family: var(--fs-serif); font-weight: 700; font-size: 18px; margin-bottom: 20px; }
.fs-input { display: block; width: 100%; font-family: var(--fs-sans); font-size: 15px; padding: 14px 16px; border: 1px solid rgba(0,0,0,0.15); border-radius: 10px; margin-bottom: 12px; }
.fs-input:focus { outline: none; border-color: var(--fs-blue); }
.fs-form-error { font-family: var(--fs-sans); font-size: 13px; color: #d3402c; margin-bottom: 12px; }
.fs-confirm-wrap { text-align: center; padding: 20px 0; }
.fs-confirm-check { width: 56px; height: 56px; border-radius: 50%; background: var(--fs-blue); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 24px; margin: 0 auto 16px; }
.fs-confirm-title { font-family: var(--fs-serif); font-weight: 700; font-size: 22px; margin: 0 0 10px; }
.fs-confirm-body { font-family: var(--fs-sans); font-size: 14px; color: rgba(0,0,0,0.6); line-height: 1.6; margin: 0 0 20px; }
.fs-meet-btn { display: inline-block; font-family: var(--fs-sans); font-size: 13px; font-weight: 500; color: var(--fs-blue); text-decoration: none; }
.fs-micro { text-align: center; font-family: var(--fs-sans); font-size: 12px; color: rgba(0,0,0,0.45); margin-top: 20px; }

/* ── Footer ──────────────────────────────────────── */
.fs-footer { background: var(--fs-cream); padding: 0 0 40px; display: flex; justify-content: center; gap: 16px; font-family: var(--fs-sans); font-size: 12px; }
.fs-footer a { color: rgba(0,0,0,0.5); text-decoration: none; }
.fs-footer a:hover { color: var(--fs-dark); }
.fs-footer-divider { color: rgba(0,0,0,0.2); }

@keyframes fs-spin { to { transform: rotate(360deg); } }
.fs-spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid rgba(0,0,0,0.2); border-top-color: var(--fs-dark); border-radius: 50%; margin-left: 8px; animation: fs-spin 0.6s linear infinite; vertical-align: middle; }