/* ================================================================
   LOKU LANDING — Design Tokens
   Source of truth: loku-app/public/assets/css/app-custom.css
   Bright blue palette + Plus Jakarta Sans + modern fintech vibe
   ================================================================ */

:root {
  /* Brand — bright blue (single source: loku-app) */
  --primary: #2563eb;          /* Bright Blue (accent in app, hero on landing) */
  --primary-deep: #1e3a8a;     /* Royal Blue */
  --primary-dark: #0c1e4a;     /* Deep Navy */
  --primary-active: #1d4ed8;   /* Medium Blue */
  --primary-light: #93c5fd;    /* Soft Azure */
  --primary-soft: #dbeafe;     /* Sky tint */
  --primary-mist: #eff6ff;     /* Pale wash */

  /* Accent — for variation pops */
  --accent-cyan: #06b6d4;
  --accent-violet: #7c3aed;

  /* Neutral — cool slate */
  --ink-900: #0b1220;
  --ink-800: #0f172a;
  --ink-700: #1e293b;
  --ink-600: #334155;
  --ink-500: #64748b;
  --ink-400: #94a3b8;
  --ink-300: #cbd5e1;
  --ink-200: #e2e8f0;
  --ink-100: #f1f5f9;
  --ink-50:  #f8fafc;
  --paper:   #ffffff;

  /* Status */
  --success: #15803d;
  --warning: #b45309;
  --error:   #be123c;

  /* Geometry */
  --radius-sm: 10px;
  --radius:    16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  /* Type */
  --font-sans: 'Plus Jakarta Sans', ui-sans-serif, system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow:    0 8px 24px -8px rgba(15, 23, 42, 0.12), 0 4px 12px -4px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 24px 48px -12px rgba(15, 23, 42, 0.18), 0 8px 24px -6px rgba(15, 23, 42, 0.08);
  --shadow-blue: 0 24px 48px -16px rgba(37, 99, 235, 0.32), 0 8px 24px -6px rgba(37, 99, 235, 0.18);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  background: var(--ink-50);
  color: var(--ink-800);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body {
  font-feature-settings: "ss01", "cv11";
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
img, svg { display: block; max-width: 100%; }
input::placeholder {
    color: unset;
}
/* ================================================================
   LAYOUT PRIMITIVES
   ================================================================ */

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}
@media (max-width: 720px) {
  .container { padding: 0 20px; }
}

.section {
  position: relative;
  padding: 120px 0;
}
@media (max-width: 720px) { .section { padding: 80px 0; } }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, currentColor 22%, transparent);
  color: var(--ink-600);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.eyebrow .dot {
  width: 6px; height: 6px; border-radius: 999px;
  background: var(--primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}

h1, h2, h3, h4 {
  font-family: var(--font-sans);
  letter-spacing: -0.025em;
  line-height: 1.05;
  margin: 0;
  color: var(--ink-900);
  text-wrap: balance;
}
h1 { font-size: clamp(40px, 6.4vw, 84px); font-weight: 800; }
h2 { font-size: clamp(32px, 4.4vw, 56px); font-weight: 800; letter-spacing: -0.03em; }
h3 { font-size: clamp(20px, 2vw, 26px); font-weight: 700; letter-spacing: -0.02em; }

p { margin: 0; color: var(--ink-600); line-height: 1.6; text-wrap: pretty; }
.lede { font-size: clamp(18px, 1.4vw, 22px); color: var(--ink-600); }

.muted { color: var(--ink-500); }
.mono { font-family: var(--font-mono); font-feature-settings: "zero", "ss02"; }

/* ================================================================
   BUTTONS
   ================================================================ */

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.01em;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: var(--shadow-blue);
}
.btn-primary:hover { transform: translateY(-2px); background: var(--primary-active); }
.btn-ghost {
  color: var(--ink-800);
  border: 1.5px solid var(--ink-200);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.btn-dark {
  background: var(--ink-900); color: white;
}
.btn-dark:hover { background: var(--ink-800); transform: translateY(-2px); }

.btn .arrow {
  width: 18px; height: 18px;
  transition: transform .2s ease;
}
.btn:hover .arrow { transform: translateX(3px); }

/* ================================================================
   NAV
   ================================================================ */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 16px 24px;
  transition: padding .3s ease;
}
.nav.scrolled {
  padding: 10px 24px;
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 16px;
  padding: 8px 12px 8px 20px;
  box-shadow: 0 4px 24px rgba(15, 23, 42, 0.08), 0 1px 4px rgba(15, 23, 42, 0.04);
  transition: box-shadow .3s ease, background .3s ease;
}
.nav.scrolled .nav-inner {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 8px 32px rgba(15, 23, 42, 0.12), 0 1px 6px rgba(15, 23, 42, 0.06);
}
.nav-brand {
  display: flex; align-items: center; gap: 12px;
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--ink-900);
}
.nav-brand-mark {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  color: var(--primary);
}
.nav-brand sup {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--primary);
  background: var(--primary-mist);
  padding: 3px 7px;
  border-radius: 6px;
  margin-left: 2px;
  text-transform: uppercase;
}

.nav-links {
  display: flex; align-items: center; gap: 2px;
}
/* .nav-link is the base class for all desktop nav links */
.nav-link {
  font-size: 14px; font-weight: 600; color: var(--ink-600);
  display: inline-flex; align-items: center; gap: 4px;
  padding: 6px 11px; border-radius: 8px;
  text-decoration: none;
  transition: color .15s, background .15s;
  position: relative;
}
.nav-link:hover { color: var(--ink-900); background: var(--ink-50); }
.nav-link--active { color: var(--primary) !important; }
.nav-link--active::after {
  content: ""; position: absolute; bottom: 3px; left: 11px; right: 11px;
  height: 2px; background: var(--primary); border-radius: 2px;
}
.nav-cta { display: flex; align-items: center; gap: 10px; }
.nav-login  { padding: 9px 16px; font-size: 14px; }
.nav-trial  { padding: 9px 18px; font-size: 14px; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-demo { display: none; }
  .nav-trial { display: none; }
}

/* ================================================================
   PARALLAX UTILITIES
   ================================================================ */

.parallax-layer {
}

/* Subtle blueprint/grid background */
.grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(37, 99, 235, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(37, 99, 235, 0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  pointer-events: none;
}

/* Floating blob */
.blob {
  position: absolute;
  border-radius: 999px;
  filter: blur(60px);
  pointer-events: none;
  opacity: 0.5;
  z-index: 0;
}
.blob.b1 { background: var(--primary); }
.blob.b2 { background: var(--primary-light); }
.blob.b3 { background: var(--accent-cyan); }
.blob.b4 { background: var(--accent-violet); opacity: 0.25; }

/* ================================================================
   FADE-IN ON SCROLL
   ================================================================ */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .6s cubic-bezier(.16,1,.3,1), transform .8s cubic-bezier(.16,1,.3,1);
  will-change: opacity, transform;
}
.reveal.in { opacity: 1 !important; transform: translateY(0); }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }
.reveal.d4 { transition-delay: .32s; }

/* ================================================================
   CARDS / SURFACES
   ================================================================ */

.card {
  background: white;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: all .3s ease;
}
.card:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

/* Floating UI mockup chrome (used heavily in hero / sections) */
.mock {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--ink-200);
  overflow: hidden;
}

.mock-bar {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--ink-100);
  background: var(--ink-50);
}
.mock-bar .dot {
  width: 10px; height: 10px; border-radius: 999px;
  background: var(--ink-200);
}
.mock-bar .dot:nth-child(1) { background: #fda4af; }
.mock-bar .dot:nth-child(2) { background: #fcd34d; }
.mock-bar .dot:nth-child(3) { background: #86efac; }

/* ================================================================
   MARQUEE
   ================================================================ */

.marquee {
  overflow: hidden;
  position: relative;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}
.marquee-track {
  display: flex;
  gap: 64px;
  width: max-content;
  animation: marquee 40s linear infinite;
}
@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ================================================================
   FOOTER
   ================================================================ */

footer {
  background: var(--ink-900);
  color: var(--ink-300);
  padding: 80px 0 32px;
  position: relative;
  overflow: hidden;
}
footer h4 {
  color: white;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
footer a { color: var(--ink-300); display: block; padding: 6px 0; font-size: 14px; }
footer a:hover { color: white; }

/* ================================================================
   RESPONSIVE HELPERS
   ================================================================ */

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
@media (max-width: 900px) {
  .grid-2 { grid-template-columns: 1fr; gap: 40px; }
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
}
@media (max-width: 1100px) and (min-width: 901px) {
  .grid-4 { grid-template-columns: 1fr 1fr; }
}