/* ============================================
   NUJU LANDING — design tokens + base
   Sans-serif only. Liquid-glass + warm cream.
   ============================================ */

:root {
  --bg: #FAF9F6;
  --bg-deep: #F4EFE6;
  --bg-warmer: #FBF7EF;
  --ink: #1A1726;
  --ink-soft: #4B4666;
  --ink-mute: #7B7592;
  --line: rgba(26, 23, 38, 0.08);
  --line-strong: rgba(26, 23, 38, 0.14);

  --purple: #7C6EDB;
  --purple-deep: #5B4FBE;
  --purple-soft: #EDE9FE;
  --teal: #4ECDC4;
  --teal-soft: #C8F0EC;
  --orange: #FFB347;
  --rose: #E8878C;
  --sky: #6C9BCF;
  --mint: #95E1D3;

  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-bg-strong: rgba(255, 255, 255, 0.72);
  --glass-border: rgba(255, 255, 255, 0.7);
  --glass-shadow:
    0 1px 1px rgba(255, 255, 255, 0.6) inset,
    0 -1px 1px rgba(26, 23, 38, 0.04) inset,
    0 24px 60px -30px rgba(40, 30, 80, 0.22),
    0 6px 18px -10px rgba(40, 30, 80, 0.12);

  --display: "Bricolage Grotesque", "DM Sans", system-ui, -apple-system, sans-serif;
  --body: "DM Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --radius-card: 28px;
  --radius-pill: 999px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-feature-settings: "ss01", "cv02", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body.dark-mode {
  --bg: #0E0B16;
  --bg-deep: #14101D;
  --bg-warmer: #1A1525;
  --ink: #F4F1FF;
  --ink-soft: #C9C2E0;
  --ink-mute: #8B83A8;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);
  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-bg-strong: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.12);
  --purple-soft: rgba(124, 110, 219, 0.18);
}

button { font-family: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

::selection { background: rgba(124, 110, 219, 0.25); color: var(--ink); }

/* ============== TYPE ============== */
.display {
  font-family: var(--display);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 0.96;
  font-variation-settings: "wdth" 92;
}
.display-tight { letter-spacing: -0.04em; line-height: 0.92; }
.eyebrow {
  font-family: var(--body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.mono {
  font-family: var(--mono);
  font-feature-settings: "ss01";
  font-size: 11px;
  letter-spacing: 0.04em;
}

/* ============== GLASS ============== */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--radius-card);
  position: relative;
}
.glass::before {
  /* liquid glass top sheen */
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255,255,255,0.4), rgba(255,255,255,0) 30%);
  pointer-events: none;
  mix-blend-mode: overlay;
  opacity: 0.7;
}
.glass-strong {
  background: var(--glass-bg-strong);
  backdrop-filter: blur(32px) saturate(160%);
  -webkit-backdrop-filter: blur(32px) saturate(160%);
}
.glass-pill {
  background: var(--glass-bg-strong);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  box-shadow: 0 8px 24px -10px rgba(40, 30, 80, 0.16);
}

/* ============== BUTTONS ============== */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 0 26px;
  height: 56px;
  border: 0;
  border-radius: 999px;
  color: white;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.005em;
  background: linear-gradient(135deg, #9388F0 0%, #7C6EDB 45%, #5B4FBE 100%);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.4) inset,
    0 -1px 0 rgba(0,0,0,0.15) inset,
    0 16px 40px -18px rgba(91, 79, 190, 0.7),
    0 4px 12px -4px rgba(91, 79, 190, 0.35);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s;
  position: relative;
  overflow: hidden;
}
.btn-primary::after {
  /* glossy hover sheen */
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(255,255,255,0.35) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.btn-primary:hover { transform: translateY(-1px); }
.btn-primary:hover::after { transform: translateX(100%); }
.btn-primary:active { transform: translateY(0) scale(0.98); }

.btn-glass {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 0 22px;
  height: 56px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  color: var(--ink);
  background: var(--glass-bg-strong);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 22px -10px rgba(40, 30, 80, 0.15);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.3s;
}
.btn-glass:hover { transform: translateY(-1px); background: rgba(255,255,255,0.85); }
.btn-glass:active { transform: scale(0.98); }

.app-store-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 56px;
  padding: 0 23px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: #111114;
  color: #fff;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: -0.01em;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.16),
    0 18px 42px -24px rgba(0,0,0,0.72);
  transition: transform 0.28s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.25s, box-shadow 0.25s;
}
.app-store-cta:hover {
  color: #fff;
  background: #1d1d21;
  transform: translateY(-1px);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.18),
    0 22px 48px -24px rgba(0,0,0,0.82);
}
.app-store-cta:active { transform: scale(0.98); }
.app-store-cta-sm {
  min-height: 42px;
  padding: 0 16px;
  gap: 7px;
  font-size: 14px;
}

.btn-sm { height: 42px; padding: 0 18px; font-size: 14px; }
.btn-md { height: 48px; padding: 0 20px; font-size: 14px; }

/* ============== AURORA BACKGROUND ============== */
.aurora-stage {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: -1;
}
.aurora-stage .blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
  mix-blend-mode: multiply;
  will-change: transform;
}
body.dark-mode .aurora-stage .blob {
  mix-blend-mode: screen;
  opacity: 0.5;
  filter: blur(100px);
}
.aurora-stage .blob.b1 { background: radial-gradient(circle, #C8B8FF 0%, transparent 70%); width: 720px; height: 720px; }
.aurora-stage .blob.b2 { background: radial-gradient(circle, #B7F0E9 0%, transparent 70%); width: 620px; height: 620px; }
.aurora-stage .blob.b3 { background: radial-gradient(circle, #FFD6A0 0%, transparent 70%); width: 540px; height: 540px; }
.aurora-stage .blob.b4 { background: radial-gradient(circle, #F6B8BD 0%, transparent 70%); width: 460px; height: 460px; }

@keyframes auroraDriftA {
  0%, 100% { transform: translate3d(-12%, -8%, 0) scale(1); }
  50% { transform: translate3d(8%, 6%, 0) scale(1.15); }
}
@keyframes auroraDriftB {
  0%, 100% { transform: translate3d(15%, -10%, 0) scale(1.05); }
  50% { transform: translate3d(-10%, 12%, 0) scale(0.95); }
}
@keyframes auroraDriftC {
  0%, 100% { transform: translate3d(-8%, 18%, 0) scale(1); }
  50% { transform: translate3d(14%, -6%, 0) scale(1.2); }
}
@keyframes auroraDriftD {
  0%, 100% { transform: translate3d(20%, 14%, 0) scale(1.1); }
  50% { transform: translate3d(-4%, -2%, 0) scale(0.85); }
}

.aurora-stage .b1 { animation: auroraDriftA 22s ease-in-out infinite; top: -10%; left: -8%; }
.aurora-stage .b2 { animation: auroraDriftB 26s ease-in-out infinite; top: -6%; right: -10%; }
.aurora-stage .b3 { animation: auroraDriftC 28s ease-in-out infinite; bottom: -12%; left: 12%; }
.aurora-stage .b4 { animation: auroraDriftD 30s ease-in-out infinite; bottom: -8%; right: 8%; }

.grain {
  position: absolute; inset: 0; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.04;
  mix-blend-mode: multiply;
}
body.dark-mode .grain { mix-blend-mode: screen; opacity: 0.06; }

.cursor-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle 480px at var(--mx, 50%) var(--my, 50%), rgba(124, 110, 219, 0.18), transparent 60%);
  transition: background 0.3s ease;
}

/* ============== KEYFRAMES ============== */
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(2deg); }
}
@keyframes floatSlow {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-8px) rotate(-1.5deg); }
}
@keyframes pulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.08); }
}
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
@keyframes textShimmer {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}
@keyframes drawLine {
  from { stroke-dashoffset: 1000; }
  to { stroke-dashoffset: 0; }
}
@keyframes blink {
  0%, 70%, 100% { opacity: 0; }
  35% { opacity: 1; }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@keyframes breathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.04); }
}
@keyframes glassShine {
  0% { transform: translateX(-150%) rotate(20deg); }
  100% { transform: translateX(250%) rotate(20deg); }
}

.float { animation: float 6s ease-in-out infinite; }
.float-slow { animation: floatSlow 9s ease-in-out infinite; }
.pulse { animation: pulse 3s ease-in-out infinite; }
.breathe { animation: breathe 4s ease-in-out infinite; }

.text-shimmer {
  background: linear-gradient(90deg, #7C6EDB 0%, #4ECDC4 40%, #FFB347 70%, #7C6EDB 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: textShimmer 6s linear infinite;
}

/* ============== SCROLL REVEALS ============== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* ============== LAYOUT ============== */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow { max-width: 980px; margin: 0 auto; padding: 0 24px; }

/* ============== SECTION DIVIDERS ============== */
.divider-glow {
  position: relative;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
  margin: 0 auto;
  max-width: 720px;
}

/* ============== NAV ============== */
.nav-shell {
  position: fixed;
  inset-inline: 0;
  top: 18px;
  z-index: 100;
  display: flex;
  justify-content: center;
  padding: 0 20px;
  pointer-events: none;
}
.nav {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 8px 8px 18px;
  height: 60px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: 0 18px 50px -28px rgba(40, 30, 80, 0.35);
  width: min(680px, 100%);
}
body.dark-mode .nav {
  background: rgba(20, 16, 30, 0.62);
  border-color: rgba(255, 255, 255, 0.1);
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 18px;
}
.nav-logo-orb {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #C8B8FF, #7C6EDB 60%, #5B4FBE);
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.6), 0 4px 12px -3px rgba(124,110,219,0.5);
  display: grid; place-items: center;
  overflow: hidden;
}
.nav-logo-orb img { width: 22px; height: 22px; }
.nav-links {
  display: flex;
  gap: 6px;
  margin-left: auto;
  align-items: center;
}
.nav-link {
  padding: 0 14px;
  height: 36px;
  display: inline-flex; align-items: center;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink-soft);
  border: 0;
  background: transparent;
  transition: background 0.25s, color 0.25s;
}
.nav-link:hover { background: rgba(255,255,255,0.6); color: var(--ink); }
body.dark-mode .nav-link:hover { background: rgba(255,255,255,0.08); }

/* hide nav links on narrow */
@media (max-width: 720px) {
  .nav-links .nav-link { display: none; }
  .nav-links .nav-cta { display: inline-flex; }
  .nav-links .nav-appstore { display: none; }
}

/* ============== STICKY CTA ============== */
.sticky-cta {
  position: fixed;
  bottom: 22px;
  inset-inline: 0;
  z-index: 90;
  display: flex; justify-content: center;
  pointer-events: none;
  transform: translateY(160%);
  opacity: 0;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s;
}
.sticky-cta.show { transform: translateY(0); opacity: 1; }
.sticky-cta-inner {
  pointer-events: auto;
  display: flex; align-items: center; gap: 14px;
  padding: 10px 10px 10px 22px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(28px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: 0 22px 60px -18px rgba(40, 30, 80, 0.45);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink-soft);
}
body.dark-mode .sticky-cta-inner {
  background: rgba(20, 16, 30, 0.78);
  border-color: rgba(255, 255, 255, 0.12);
}
.sticky-cta-inner strong { color: var(--ink); font-weight: 600; }
.sticky-cta-inner .btn-primary { height: 44px; padding: 0 18px; font-size: 13.5px; }

/* ============== UTILITY ============== */
.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-5 { gap: 20px; }
.gap-6 { gap: 24px; }
.gap-8 { gap: 32px; }
.text-center { text-align: center; }
.relative { position: relative; }
.section { padding: 100px 0; position: relative; }
.section-tight { padding: 64px 0; position: relative; }

@media (max-width: 720px) {
  .section { padding: 64px 0; }
}