/* ==========================================================
   DESIGN SYSTEM — Tokens, Reset, Typography, Utilities
   ========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@100;200;300;400;500;600;700;800;900&family=Inter:wght@300;400;500;600&display=swap');

/* ── Tokens ── */
:root {
  --clr-bg: transparent;
  --clr-surface: rgba(255, 255, 255, 0.65);
  --clr-surface-2: rgba(255, 255, 255, 0.45);
  --clr-border: rgba(30, 41, 59, 0.1);
  --clr-primary: #2563eb;
  --clr-primary-h: 221;
  --clr-accent: #3b82f6;
  --clr-accent-2: #6366f1;
  --clr-text: #0f172a;
  --clr-muted: #64748b;
  --clr-white: #ffffff;

  /* Gradients */
  --grad-primary: linear-gradient(135deg, #2563eb, #6366f1);
  --grad-glow: radial-gradient(ellipse at center, rgba(37, 99, 235, 0.15) 0%, transparent 70%);

  /* Typography */
  --font-head: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Sizes */
  --size-xs: 0.75rem;
  --size-sm: 0.875rem;
  --size-base: 1rem;
  --size-lg: 1.125rem;
  --size-xl: 1.25rem;
  --size-2xl: 1.5rem;
  --size-3xl: 2rem;
  --size-4xl: 2.5rem;
  --size-5xl: 3.5rem;
  --size-6xl: 5rem;
  --size-7xl: 7rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Effects */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  --shadow-glow: 0 0 40px rgba(192, 160, 98, 0.18);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.25);
  --shadow-deep: 0 16px 60px rgba(0, 0, 0, 0.35);

  /* Animation */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 200ms;
  --dur-std: 600ms;
  --dur-slow: 1000ms;
  --dur-cinema: 1400ms;

  /* Nav height */
  --nav-h: 72px;
}

/* ── Reset ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: auto;
  /* Lenis handles smooth scroll */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 50%, #f1f5f9 100%);
  background-attachment: fixed;
  color: var(--clr-text);
  font-family: var(--font-body);
  font-size: var(--size-base);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 4px;
}

::-webkit-scrollbar-track {
  background: var(--clr-surface-2);
}

::-webkit-scrollbar-thumb {
  background: var(--clr-primary);
  border-radius: 999px;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

input,
textarea,
select {
  font-family: inherit;
}

ul,
ol {
  list-style: none;
}

/* ── Typography ── */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-head);
  line-height: 1.1;
  font-weight: 700;
}

h1 {
  font-size: clamp(2.5rem, 7vw, var(--size-7xl));
}

h2 {
  font-size: clamp(2rem, 5vw, var(--size-5xl));
}

h3 {
  font-size: clamp(1.5rem, 3vw, var(--size-3xl));
}

h4 {
  font-size: var(--size-2xl);
}

h5 {
  font-size: var(--size-xl);
}

p {
  color: var(--clr-muted);
  line-height: 1.8;
}

.display-text {
  font-family: var(--font-head);
  font-size: clamp(3rem, 10vw, 9rem);
  font-weight: 900;
  line-height: 0.9;
  letter-spacing: -0.04em;
}

.section-label {
  font-family: var(--font-head);
  font-size: var(--size-xs);
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--clr-primary);
}

.gradient-text {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Layout ── */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-8);
}

.container--narrow {
  max-width: 900px;
}

.container--wide {
  max-width: 1440px;
}

.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

/* ── Glass Card ── */
.glass {
  background: rgba(36, 39, 47, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(192, 160, 98, 0.12);
  border-radius: var(--radius-lg);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.85rem var(--space-8);
  border-radius: var(--radius-full);
  font-family: var(--font-head);
  font-size: var(--size-sm);
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: transform var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.1);
  opacity: 0;
  transition: opacity var(--dur-fast);
}

.btn:hover::before {
  opacity: 1;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--grad-primary);
  color: #1a1d23;
  box-shadow: 0 4px 24px rgba(192, 160, 98, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 8px 40px rgba(192, 160, 98, 0.5);
}

.btn-outline {
  background: transparent;
  color: var(--clr-text);
  border: 1px solid var(--clr-border);
}

.btn-outline:hover {
  border-color: var(--clr-primary);
  color: var(--clr-primary);
}

/* ── Tags / Chips ── */
.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: var(--size-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
  background: rgba(192, 160, 98, 0.1);
  color: var(--clr-primary);
  border: 1px solid rgba(192, 160, 98, 0.2);
}

/* ── Section ── */
.section {
  padding: var(--space-32) 0;
  position: relative;
}

.section-header {
  margin-bottom: var(--space-16);
}

.section-header .section-label {
  display: block;
  margin-bottom: var(--space-4);
}

/* ── Glow decorations ── */
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

/* ── Page wrapper ── */
.page {
  display: none;
  min-height: 100vh;
  position: relative;
  padding-top: var(--nav-h);
}

.page.active {
  display: block;
}

/* ── Utilities ── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.text-center {
  text-align: center;
}

.text-muted {
  color: var(--clr-muted);
}

.mt-2 {
  margin-top: var(--space-2);
}

.mt-4 {
  margin-top: var(--space-4);
}

.mt-6 {
  margin-top: var(--space-6);
}

.mt-8 {
  margin-top: var(--space-8);
}

.mt-12 {
  margin-top: var(--space-12);
}

.mb-4 {
  margin-bottom: var(--space-4);
}

.mb-8 {
  margin-bottom: var(--space-8);
}

/* ── Animations ── */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes pulse-glow {

  0%,
  100% {
    box-shadow: 0 0 20px rgba(192, 160, 98, 0.3);
  }

  50% {
    box-shadow: 0 0 50px rgba(192, 160, 98, 0.7);
  }
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-12px);
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }

  100% {
    background-position: 200% 0;
  }
}

/* ── Reveal classes (GSAP sets these) ── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
}

.reveal.visible {
  opacity: 1;
  transform: none;
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .container {
    padding: 0 var(--space-6);
  }
}

@media (max-width: 768px) {
  .display-text {
    font-size: clamp(2.5rem, 10vw, 5rem);
  }

  .section {
    padding: var(--space-16) 0;
  }

  .container {
    padding: 0 var(--space-4);
  }
}

/* ── Animations ── */
@keyframes bgAnime {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}