/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  color: #e8e6ff;
  background: #07061a;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
h1, h2, h3 { font-family: 'Fraunces', Georgia, serif; font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; margin: 0 0 0.4em; color: #fff; }
h1 { font-size: clamp(2.2rem, 5.5vw + 1rem, 4.2rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 2.5vw + 1rem, 2.6rem); }
h3 { font-size: 1.15rem; font-family: 'Inter', sans-serif; font-weight: 700; color: #fff; }
p { margin: 0 0 1rem; }

/* ---------- Layout ---------- */
.wrap { width: min(1100px, 92%); margin: 0 auto; position: relative; z-index: 2; }
.narrow { max-width: 720px; }

/* ---------- Theme tokens (Aurora) ---------- */
:root {
  --bg-0: #07061a;
  --bg-1: #0d0a2c;
  --ink: #f5f3ff;
  --muted: #a8a4d4;
  --muted-2: #7e7ab0;
  --line: rgba(255,255,255,0.08);
  --line-strong: rgba(255,255,255,0.16);

  /* Aurora palette */
  --neon-magenta: #f0abfc;
  --neon-violet: #a78bfa;
  --neon-blue: #60a5fa;
  --neon-cyan: #22d3ee;
  --neon-pink: #fb7185;
  --neon-mint: #5eead4;
  --neon-amber: #fbbf24;

  --indigo-700: #4f46e5;
  --indigo-500: #6366f1;
  --violet-500: #8b5cf6;
  --violet-400: #a78bfa;

  --good: #34d399;
  --warn: #fbbf24;
  --bad: #fb7185;

  --glass: rgba(255,255,255,0.06);
  --glass-strong: rgba(255,255,255,0.09);
  --glass-border: rgba(255,255,255,0.12);

  --shadow-glow: 0 20px 60px -20px rgba(139, 92, 246, 0.45);
  --shadow-card: 0 30px 80px -30px rgba(0, 0, 0, 0.7);
  --radius: 22px;
}

/* ---------- Animated aurora mesh background ---------- */
body::before {
  content: "";
  position: fixed; inset: -20%;
  background:
    radial-gradient(40% 35% at 12% 18%, rgba(240,171,252,0.45), transparent 60%),
    radial-gradient(35% 30% at 88% 12%, rgba(96,165,250,0.42), transparent 60%),
    radial-gradient(45% 40% at 82% 80%, rgba(34,211,238,0.32), transparent 60%),
    radial-gradient(35% 35% at 18% 82%, rgba(167,139,250,0.40), transparent 60%);
  filter: blur(40px) saturate(140%);
  z-index: -2;
  animation: meshDrift 22s ease-in-out infinite alternate;
  pointer-events: none;
}
body::after {
  content: "";
  position: fixed; inset: 0;
  background:
    radial-gradient(ellipse at top, transparent 30%, rgba(7,6,26,0.85) 90%),
    linear-gradient(180deg, rgba(7,6,26,0.4), rgba(7,6,26,0.7));
  z-index: -1;
  pointer-events: none;
}
@keyframes meshDrift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  50%  { transform: translate3d(2%, -2%, 0) scale(1.05); }
  100% { transform: translate3d(-2%, 1%, 0) scale(1); }
}

/* Subtle grain on top for texture */
.grain {
  position: fixed; inset: 0; pointer-events: none; z-index: -1;
  opacity: 0.06; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 30;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: rgba(13, 10, 44, 0.55);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0;
}
.logo {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; letter-spacing: -0.01em; color: #fff;
  font-size: 1.02rem;
}
.logo-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 12px;
  background: linear-gradient(135deg, var(--neon-magenta) 0%, var(--neon-violet) 50%, var(--neon-cyan) 100%);
  color: #0d0a2c;
  box-shadow: 0 8px 24px -6px rgba(167,139,250,0.6), inset 0 1px 0 rgba(255,255,255,0.4);
}
.site-header nav a {
  margin-left: 22px;
  color: var(--muted); font-weight: 500; font-size: 0.95rem;
  transition: color 0.18s ease;
}
.site-header nav a:hover { color: #fff; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  isolation: isolate;
  padding: clamp(72px, 11vw, 140px) 0 clamp(100px, 12vw, 180px);
  text-align: center;
  color: #fff;
  overflow: hidden;
}
.hero-inner { position: relative; z-index: 3; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.16em;
  color: #fff;
  background: linear-gradient(135deg, rgba(240,171,252,0.18), rgba(96,165,250,0.18));
  border: 1px solid var(--glass-border);
  padding: 8px 16px; border-radius: 999px;
  margin-bottom: 1.4rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.eyebrow::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--neon-mint);
  box-shadow: 0 0 12px var(--neon-mint);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: 0.4; transform: scale(0.85); } }

.hero h1 { max-width: 920px; margin-left: auto; margin-right: auto; }
.hero .lede {
  font-size: clamp(1.05rem, 1vw + 0.95rem, 1.3rem);
  color: var(--muted);
  max-width: 600px; margin: 0 auto 2.2rem;
}
.grad {
  background: linear-gradient(110deg, var(--neon-magenta) 0%, var(--neon-violet) 35%, var(--neon-blue) 65%, var(--neon-cyan) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: gradShift 6s ease-in-out infinite;
}
@keyframes gradShift {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 100% center; }
}

.trust {
  list-style: none; padding: 0; margin: 1.8rem 0 0;
  display: flex; justify-content: center; flex-wrap: wrap; gap: 8px 22px;
  font-size: 0.85rem; color: var(--muted-2);
}
.trust li { white-space: nowrap; display: inline-flex; align-items: center; gap: 6px; }
.trust li::before { content: "✦"; color: var(--neon-violet); }

/* Stars + moon */
.stars {
  position: absolute; inset: 0;
  background-image:
    radial-gradient(1px 1px at 20% 30%, #fff, transparent),
    radial-gradient(1px 1px at 70% 20%, #fff, transparent),
    radial-gradient(1.5px 1.5px at 40% 60%, #fff, transparent),
    radial-gradient(1px 1px at 85% 75%, #fff, transparent),
    radial-gradient(1px 1px at 15% 80%, #fff, transparent),
    radial-gradient(2px 2px at 55% 35%, #fff, transparent),
    radial-gradient(1px 1px at 90% 40%, #fff, transparent),
    radial-gradient(1px 1px at 30% 15%, #fff, transparent),
    radial-gradient(1.5px 1.5px at 65% 88%, #fff, transparent),
    radial-gradient(1px 1px at 8% 50%, #fff, transparent);
  opacity: 0.6;
  animation: twinkle 4s ease-in-out infinite alternate;
  z-index: 1;
}
@keyframes twinkle { from { opacity: 0.35; } to { opacity: 0.8; } }
.moon {
  position: absolute; top: 80px; right: 8%;
  width: 100px; height: 100px; border-radius: 50%;
  background:
    radial-gradient(circle at 35% 35%, #fff, #fef9c3 50%, #fbbf24 100%);
  box-shadow:
    0 0 80px rgba(251, 191, 36, 0.5),
    0 0 160px rgba(251, 191, 36, 0.25),
    inset -16px -10px 0 rgba(13,10,44,0.15);
  z-index: 1;
  animation: moonFloat 8s ease-in-out infinite alternate;
}
@keyframes moonFloat {
  0% { transform: translateY(0) rotate(-2deg); }
  100% { transform: translateY(-14px) rotate(2deg); }
}
@media (max-width: 640px) { .moon { width: 64px; height: 64px; top: 40px; right: 10%; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 13px 22px; border-radius: 14px;
  font-weight: 600; font-size: 0.98rem;
  transition: transform 0.15s ease, box-shadow 0.22s ease, background 0.22s ease;
  white-space: nowrap;
  position: relative;
  isolation: isolate;
}
.btn-primary {
  color: #0d0a2c;
  background: linear-gradient(110deg, var(--neon-magenta), var(--neon-violet) 50%, var(--neon-cyan));
  background-size: 200% auto;
  box-shadow:
    0 12px 32px -8px rgba(167,139,250,0.55),
    0 0 0 1px rgba(255,255,255,0.18) inset;
  font-weight: 700;
}
.btn-primary:hover {
  transform: translateY(-2px);
  background-position: right center;
  box-shadow:
    0 18px 40px -8px rgba(167,139,250,0.7),
    0 0 0 1px rgba(255,255,255,0.25) inset;
}
.btn-primary:active { transform: translateY(0); }
.btn-lg { padding: 17px 30px; font-size: 1.05rem; border-radius: 16px; }
.btn-block { width: 100%; padding: 17px; font-size: 1.05rem; border-radius: 16px; }
.btn-secondary {
  color: #fff;
  background: var(--glass-strong);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.btn-secondary:hover { background: rgba(255,255,255,0.14); border-color: var(--neon-violet); }
.btn-ghost {
  color: #fff;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  font-size: 0.92rem;
  padding: 11px 18px;
}
.btn-ghost:hover { background: var(--glass-strong); border-color: var(--neon-violet); color: var(--neon-magenta); }

/* ---------- Why strip ---------- */
.why-section {
  margin-top: -90px; position: relative; z-index: 6; padding-bottom: 16px;
}
.why-strip {
  list-style: none; margin: 0; padding: 18px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  box-shadow: var(--shadow-card);
}
.why-strip li {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px;
  border-right: 1px solid var(--line);
}
.why-strip li:last-child { border-right: 0; }
@media (max-width: 820px) {
  .why-strip { grid-template-columns: 1fr 1fr; gap: 4px; padding: 14px; }
  .why-strip li:nth-child(2) { border-right: 0; }
  .why-strip li:nth-child(1), .why-strip li:nth-child(2) {
    border-bottom: 1px solid var(--line); padding-bottom: 14px;
  }
  .why-strip li:nth-child(3), .why-strip li:nth-child(4) { padding-top: 14px; }
}
@media (max-width: 480px) {
  .why-strip { grid-template-columns: 1fr; }
  .why-strip li {
    border-right: 0; border-bottom: 1px solid var(--line) !important;
    padding: 12px 8px !important;
  }
  .why-strip li:last-child { border-bottom: 0 !important; }
}
.why-icon {
  font-size: 1.5rem; flex-shrink: 0;
  filter: drop-shadow(0 0 12px rgba(167,139,250,0.5));
}
.why-strip strong { display: block; color: #fff; font-size: 0.95rem; line-height: 1.2; }
.why-strip em {
  display: block; font-style: normal; color: var(--muted-2);
  font-size: 0.78rem; margin-top: 2px;
}

/* ---------- Calculator ---------- */
.calculator-section {
  margin-top: 32px; position: relative; z-index: 5; padding-bottom: 80px;
}
.card {
  background: var(--glass);
  border-radius: var(--radius);
  padding: clamp(22px, 3vw, 34px);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.06), transparent 40%);
  pointer-events: none;
}
.calculator-card {
  padding: clamp(26px, 4vw, 44px);
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.04));
  box-shadow: var(--shadow-card), 0 0 0 1px rgba(167,139,250,0.18) inset;
}
.calculator-card::after {
  content: ""; position: absolute; top: -50%; right: -20%;
  width: 400px; height: 400px; border-radius: 50%;
  background: radial-gradient(circle, rgba(240,171,252,0.18), transparent 70%);
  filter: blur(40px); pointer-events: none; z-index: -1;
}
.calculator-card h2 { margin-bottom: 6px; }
.muted { color: var(--muted); }
.small { font-size: 0.9rem; }
.grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
  margin-bottom: 18px;
}
@media (max-width: 540px) { .grid { grid-template-columns: 1fr; } }
.field { display: block; margin-bottom: 20px; position: relative; z-index: 2; }
.label {
  display: block; font-weight: 600; font-size: 0.88rem; color: var(--muted);
  margin-bottom: 10px; text-transform: uppercase; letter-spacing: 0.08em;
}
input[type="time"], select {
  width: 100%; padding: 15px 16px;
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  background: rgba(13, 10, 44, 0.4);
  font-size: 1rem; color: #fff;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
  -webkit-appearance: none; appearance: none;
  font-family: inherit;
  font-weight: 500;
}
input[type="time"] { color-scheme: dark; }
select option { background: #1a1640; color: #fff; }
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23a78bfa' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 16px center;
  background-color: rgba(13, 10, 44, 0.4);
  padding-right: 42px;
}
input[type="time"]:focus, select:focus {
  outline: none;
  border-color: var(--neon-violet);
  box-shadow: 0 0 0 4px rgba(167,139,250,0.18);
  background: rgba(13, 10, 44, 0.55);
}

/* Slider */
.slider-row {
  display: flex; align-items: center; gap: 14px;
  background: rgba(13, 10, 44, 0.4);
  border: 1px solid var(--glass-border);
  border-radius: 14px; padding: 14px 16px;
}
.slider-row .emoji {
  font-size: 1.7rem; flex-shrink: 0;
  filter: drop-shadow(0 0 12px rgba(240,171,252,0.4));
  transition: transform 0.2s ease;
}
.slider-row input[type="range"] {
  flex: 1; -webkit-appearance: none; appearance: none;
  height: 6px; border-radius: 999px;
  background: linear-gradient(90deg, var(--neon-pink) 0%, var(--neon-amber) 50%, var(--neon-mint) 100%);
  outline: none;
  box-shadow: inset 0 0 8px rgba(0,0,0,0.4);
}
.slider-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 24px; height: 24px; border-radius: 50%;
  background: #fff;
  border: 3px solid var(--neon-violet);
  box-shadow: 0 0 0 4px rgba(167,139,250,0.18), 0 4px 12px rgba(0,0,0,0.4);
  cursor: grab;
}
.slider-row input[type="range"]::-moz-range-thumb {
  width: 24px; height: 24px; border-radius: 50%;
  background: #fff;
  border: 3px solid var(--neon-violet);
  box-shadow: 0 0 0 4px rgba(167,139,250,0.18), 0 4px 12px rgba(0,0,0,0.4);
  cursor: grab;
}
.slider-row output {
  font-size: 0.85rem; font-weight: 700; color: #fff;
  min-width: 90px; text-align: right;
}
.slider-scale {
  display: flex; justify-content: space-between;
  font-size: 0.72rem; color: var(--muted-2); margin-top: 8px; padding: 0 6px;
  text-transform: uppercase; letter-spacing: 0.08em;
}

/* Toggle chips */
.toggles {
  border: 0; padding: 0; margin: 0 0 24px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
}
.toggles legend { grid-column: 1 / -1; padding: 0; margin-bottom: 2px; }
.toggles .label { display: block; }
@media (max-width: 540px) { .toggles { grid-template-columns: 1fr; } }
.chip {
  display: flex; align-items: center; gap: 10px;
  background: rgba(13, 10, 44, 0.4);
  border: 1px solid var(--glass-border);
  border-radius: 14px; padding: 13px 15px;
  cursor: pointer; user-select: none;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.12s ease;
  font-size: 0.93rem; color: var(--muted);
  font-weight: 500;
}
.chip:hover { border-color: var(--neon-violet); color: #fff; transform: translateY(-1px); }
.chip input { accent-color: var(--neon-violet); width: 18px; height: 18px; flex-shrink: 0; }
.chip:has(input:checked) {
  background: linear-gradient(135deg, rgba(240,171,252,0.16), rgba(96,165,250,0.16));
  border-color: var(--neon-violet);
  color: #fff;
  box-shadow: 0 0 24px -6px rgba(167,139,250,0.4);
  font-weight: 600;
}

/* ---------- Results ---------- */
.results { margin-top: 28px; display: grid; gap: 18px; animation: rise 0.45s cubic-bezier(0.2, 0.8, 0.2, 1); }
@keyframes rise {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.result-summary {
  text-align: center; padding: clamp(30px, 4vw, 48px);
  background: linear-gradient(180deg, rgba(255,255,255,0.10), rgba(255,255,255,0.04));
  position: relative;
}
.result-summary::after {
  content: ""; position: absolute; top: -30%; left: 50%;
  width: 600px; height: 400px; transform: translateX(-50%);
  background: radial-gradient(circle, rgba(240,171,252,0.22), transparent 60%);
  filter: blur(40px); z-index: -1;
}
.time-display {
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  margin: 8px 0 24px;
}
.time-display span:first-child {
  font-family: 'Fraunces', Georgia, serif;
  font-size: clamp(3.4rem, 9vw, 6rem); font-weight: 700;
  background: linear-gradient(110deg, var(--neon-magenta), var(--neon-violet) 50%, var(--neon-cyan));
  background-size: 200% auto;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  line-height: 1;
  letter-spacing: -0.03em;
  filter: drop-shadow(0 4px 30px rgba(167,139,250,0.4));
  animation: gradShift 6s ease-in-out infinite;
}
.cycles-pill {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(167,139,250,0.16); color: #fff;
  border: 1px solid rgba(167,139,250,0.4);
  padding: 7px 16px; border-radius: 999px;
  font-size: 0.86rem; font-weight: 600;
  backdrop-filter: blur(10px);
}
.cycles-pill.subtle { background: var(--glass); color: var(--muted); border-color: var(--glass-border); }
.alt-time {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding-top: 22px; border-top: 1px solid var(--line);
}
.alt-time strong {
  font-family: 'Fraunces', Georgia, serif; font-size: 1.8rem; color: #fff;
}

/* Sleep timeline */
.kicker {
  text-transform: uppercase; letter-spacing: 0.14em;
  font-size: 0.78rem !important; color: var(--muted-2) !important;
  margin-bottom: 4px;
}
.timeline {
  list-style: none; padding: 22px 0 4px; margin: 14px 0 26px;
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  position: relative;
}
.timeline::before {
  content: ""; position: absolute;
  top: 36px; left: 16%; right: 16%; height: 2px;
  background: linear-gradient(90deg, var(--neon-magenta), var(--neon-violet) 50%, var(--neon-cyan));
  opacity: 0.5;
  z-index: 0;
}
.timeline li {
  display: flex; flex-direction: column; align-items: center;
  gap: 6px; position: relative; z-index: 1;
}
.timeline .dot {
  width: 14px; height: 14px; border-radius: 50%;
  border: 3px solid #0d0a2c;
  box-shadow: 0 0 0 2px currentColor, 0 0 16px currentColor;
}
.timeline .dot.bed { color: var(--neon-magenta); background: var(--neon-magenta); }
.timeline .dot.asleep { color: var(--neon-violet); background: var(--neon-violet); }
.timeline .dot.wake { color: var(--neon-cyan); background: var(--neon-cyan); }
.timeline strong {
  font-family: 'Fraunces', Georgia, serif; font-size: 1.15rem;
  color: #fff; margin-top: 6px; line-height: 1;
}
.timeline em {
  font-style: normal; font-size: 0.74rem; color: var(--muted-2);
  text-transform: uppercase; letter-spacing: 0.08em; text-align: center;
}
@media (max-width: 480px) {
  .timeline strong { font-size: 1rem; }
  .timeline em { font-size: 0.68rem; }
}

.result-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 18px;
}
@media (max-width: 720px) { .result-grid { grid-template-columns: 1fr; } }

/* Gauge */
.gauge-wrap {
  position: relative; width: 190px; height: 190px; margin: 10px auto 4px;
}
.gauge { width: 100%; height: 100%; transform: rotate(-90deg); }
.gauge-track {
  fill: none; stroke: rgba(255,255,255,0.08); stroke-width: 12;
}
.gauge-fill {
  fill: none; stroke-width: 12;
  stroke-linecap: round;
  stroke-dasharray: 326.7;
  stroke-dashoffset: 326.7;
  transition: stroke-dashoffset 0.9s cubic-bezier(0.5, 0, 0.2, 1);
  stroke: url(#gaugeGradient);
  filter: drop-shadow(0 0 12px rgba(167,139,250,0.7));
}
.gauge-text {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
}
.gauge-text span {
  font-family: 'Fraunces', Georgia, serif; font-size: 2.8rem; font-weight: 700; color: #fff;
  line-height: 1;
}
.gauge-text small { color: var(--muted-2); font-size: 0.95rem; margin-top: 2px; }
.gauge-text em {
  display: block; margin-top: 8px;
  font-style: normal; font-size: 0.82rem; font-weight: 600;
  color: var(--neon-violet); text-transform: uppercase; letter-spacing: 0.08em;
}

/* Cycle bars */
.cycle-bars {
  list-style: none; padding: 0; margin: 18px 0 24px;
  display: flex; gap: 7px; align-items: flex-end; height: 100px;
}
.cycle-bars li {
  flex: 1; border-radius: 10px;
  background: linear-gradient(180deg, var(--neon-magenta), var(--neon-violet) 60%, var(--neon-blue));
  position: relative;
  min-height: 28px;
  transform-origin: bottom;
  animation: barRise 0.7s cubic-bezier(0.2, 0.8, 0.2, 1) both;
  box-shadow: 0 0 16px rgba(167,139,250,0.4), inset 0 1px 0 rgba(255,255,255,0.3);
}
.cycle-bars li.dim {
  background: rgba(255,255,255,0.06);
  box-shadow: none;
}
.cycle-bars li span {
  position: absolute; bottom: -22px; left: 0; right: 0;
  text-align: center; font-size: 0.7rem; color: var(--muted-2); font-weight: 600;
}
@keyframes barRise {
  from { transform: scaleY(0); opacity: 0.4; }
  to { transform: scaleY(1); opacity: 1; }
}

/* Tips */
.tips { margin: 8px 0 0; padding: 0; list-style: none; }
.tips li {
  position: relative; padding: 12px 0 12px 32px;
  border-bottom: 1px solid var(--line);
  font-size: 0.97rem; color: #d6d3ff;
}
.tips li:last-child { border-bottom: none; }
.tips li::before {
  content: "✦"; position: absolute; left: 4px; top: 12px;
  color: var(--neon-magenta);
  text-shadow: 0 0 12px var(--neon-magenta);
}

/* Share */
.share-card {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 18px;
}
.share-row { display: flex; flex-wrap: wrap; gap: 8px; }
#twShare, #fbShare { font-weight: 700; min-width: 44px; padding: 11px 14px; }

/* ---------- How it works ---------- */
.how-section { padding: 100px 0 80px; position: relative; }
.how-section::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(40% 50% at 80% 30%, rgba(34,211,238,0.10), transparent 60%),
    radial-gradient(40% 50% at 20% 70%, rgba(240,171,252,0.10), transparent 60%);
  pointer-events: none; z-index: 0;
}
.how-grid {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px; align-items: start;
  position: relative; z-index: 2;
}
@media (max-width: 800px) { .how-grid { grid-template-columns: 1fr; gap: 36px; } }
.how-section p { color: var(--muted); }
.how-section strong { color: #fff; }
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.steps li {
  display: flex; gap: 14px; align-items: flex-start;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  padding: 20px;
  border-radius: 16px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: transform 0.18s ease, border-color 0.18s ease;
}
.steps li:hover { transform: translateY(-2px); border-color: rgba(167,139,250,0.4); }
.steps strong { display: block; margin-bottom: 4px; color: #fff; }
.steps p { margin: 0; font-size: 0.92rem; color: var(--muted); }
.step-num {
  flex-shrink: 0; width: 38px; height: 38px; border-radius: 12px;
  background: linear-gradient(135deg, var(--neon-magenta), var(--neon-violet) 60%, var(--neon-cyan));
  color: #0d0a2c; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  box-shadow: 0 6px 20px -4px rgba(167,139,250,0.5);
}

/* ---------- FAQ ---------- */
.faq-section { padding: 80px 0 100px; }
.faq-section h2 { text-align: center; margin-bottom: 32px; }
details {
  background: var(--glass);
  border-radius: 16px; border: 1px solid var(--glass-border);
  padding: 18px 22px; margin-bottom: 12px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: border-color 0.2s ease, background 0.2s ease;
}
details[open] {
  background: var(--glass-strong);
  border-color: rgba(167,139,250,0.3);
}
summary {
  cursor: pointer; font-weight: 600; color: #fff;
  list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: "+"; font-size: 1.6rem; font-weight: 300; color: var(--neon-violet);
  transition: transform 0.25s ease;
  line-height: 1;
}
details[open] summary::after { content: "−"; }
details p { margin: 14px 0 0; color: var(--muted); }

/* ---------- Footer ---------- */
.site-footer {
  padding: 60px 0 30px;
  background: linear-gradient(180deg, transparent, rgba(7,6,26,0.8));
  border-top: 1px solid var(--line);
  position: relative;
  z-index: 2;
}
.site-footer strong { color: #fff; font-size: 1.05rem; }
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1.2fr; gap: 30px;
  align-items: start;
  padding-bottom: 30px; border-bottom: 1px solid var(--line);
}
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr; gap: 22px; } }
.site-footer nav { display: flex; flex-direction: column; gap: 8px; }
.site-footer nav a { color: var(--muted); font-size: 0.95rem; transition: color 0.15s ease; }
.site-footer nav a:hover { color: var(--neon-magenta); }
.privacy { margin: 0; color: var(--muted); }
.copyright {
  text-align: center; margin: 24px 0 0;
  font-size: 0.82rem; color: var(--muted-2);
}

/* ---------- Ad slots ---------- */
.ad-slot {
  margin: 36px 0;
  padding: 14px 16px 18px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  border-radius: 18px;
  text-align: center;
  min-height: 120px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.ad-label {
  display: block;
  font-size: 0.68rem;
  color: var(--muted-2);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  margin-bottom: 10px;
  font-weight: 600;
}
.ad-slot ins.adsbygoogle { background: transparent; }

/* ---------- Misc ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}