/* ============================================
   THE NEW SHAPE — Design System
   Base grid: 4px / 8px
   ============================================ */

:root {
  /* ---------- Color Tokens ---------- */
  --color-bg: #0A0A0A;
  --color-bg-elevated: #161616;
  --color-surface: rgba(245, 245, 245, 0.05);
  --color-surface-hover: rgba(245, 245, 245, 0.08);
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-strong: rgba(255, 255, 255, 0.12);
  --color-divider: rgba(245, 245, 245, 0.15);

  --color-primary: #5C45FD;
  --color-primary-hover: #6E58FF;
  --color-primary-soft: #A89BFF;

  --color-text: #F5F5F5;
  --color-text-muted: #969799;
  --color-text-subtle: rgba(245, 245, 245, 0.55);

  /* ---------- Typography ---------- */
  --font-sans: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --fs-display: clamp(48px, 7vw, 112px);
  --fs-h1: clamp(40px, 5.5vw, 80px);
  --fs-h2: clamp(32px, 4vw, 56px);
  --fs-h3: clamp(24px, 2.5vw, 32px);
  --fs-h4: 20px;
  --fs-body-lg: 18px;
  --fs-body: 16px;
  --fs-small: 14px;
  --fs-xs: 12px;

  --fw-regular: 400;
  --fw-medium: 500;
  --fs-semibold: 600;
  --fw-bold: 700;

  --lh-tight: 1.05;
  --lh-snug: 1.2;
  --lh-normal: 1.5;
  --lh-relaxed: 1.65;

  /* ---------- Spacing (4/8 grid) ---------- */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-8: 32px;
  --sp-10: 40px;
  --sp-12: 48px;
  --sp-16: 64px;
  --sp-20: 80px;
  --sp-24: 96px;
  --sp-32: 128px;
  --sp-40: 160px;

  /* ---------- Radius (iOS-style smooth corners) ---------- */
  --r-xs: 8px;
  --r-sm: 12px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 28px;
  --r-2xl: 32px;
  --r-pill: 999px;

  /* ---------- Shadow ---------- */
  --shadow-glow: 0 0 0 1px rgba(92, 69, 253, 0.3), 0 20px 60px -10px rgba(92, 69, 253, 0.35);
  --shadow-card: 0 1px 0 rgba(255,255,255,0.03) inset;

  /* ---------- Layout ---------- */
  --container: 1280px;
  --container-px: clamp(20px, 4vw, 80px);

  /* ---------- Motion ---------- */
  --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-mid: 420ms;
  --dur-slow: 800ms;
}

/* iOS-style corner smoothing (squircle) — supported in Safari/iOS */
.squircle {
  -webkit-corner-smoothing: 60%;
          corner-smoothing: 60%;
}

/* ---------- Light mode override ---------- */
[data-theme="light"] {
  --color-bg: #FAFAFA;
  --color-bg-elevated: #FFFFFF;
  --color-surface: rgba(10, 10, 10, 0.04);
  --color-surface-hover: rgba(10, 10, 10, 0.07);
  --color-border: rgba(10, 10, 10, 0.08);
  --color-border-strong: rgba(10, 10, 10, 0.14);
  --color-divider: rgba(10, 10, 10, 0.12);
  --color-text: #0A0A0A;
  --color-text-muted: #55555A;
  --color-text-subtle: rgba(10, 10, 10, 0.55);
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background var(--dur-mid) var(--ease-out), color var(--dur-mid) var(--ease-out);
}
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: 0; background: transparent; color: inherit; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, p { margin: 0; }

/* ---------- Container ---------- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--container-px);
  padding-right: var(--container-px);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 0 var(--sp-8);
  height: 56px;
  border-radius: var(--r-pill);
  font-weight: var(--fw-medium);
  font-size: var(--fs-body);
  letter-spacing: -0.01em;
  transition: transform var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
  will-change: transform;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--color-primary);
  color: #FFFFFF;
  box-shadow: 0 8px 24px -8px rgba(92,69,253,0.6);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 12px 36px -8px rgba(92,69,253,0.8);
}
.btn-ghost {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}
.btn-ghost:hover { background: var(--color-surface-hover); }

.btn-sm { height: 40px; padding: 0 var(--sp-5); font-size: var(--fs-small); }

/* ---------- Card ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  padding: var(--sp-8);
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out), transform var(--dur-mid) var(--ease-out);
}
.card:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-border-strong);
}

/* ---------- Eyebrow label ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 6px var(--sp-4);
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  font-weight: var(--fw-regular);
  letter-spacing: 0.01em;
}
.eyebrow .dot { display: none; }

/* ---------- Animations: reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* Split-letter rise used for hero */
.rise-char {
  display: inline-block;
  transform: translateY(110%);
  opacity: 0;
  transition: transform 900ms var(--ease-out), opacity 600ms var(--ease-out);
}
.rise-word { display: inline-block; overflow: hidden; padding: 0.18em 0.02em 0.28em; line-height: 1; vertical-align: top; }
.rise.in .rise-char { transform: translateY(0); opacity: 1; }

/* Accent word */
.accent {
  color: var(--color-primary-soft);
  font-style: italic;
  font-weight: var(--fw-regular);
}

/* Utility */
.grid { display: grid; gap: var(--sp-6); }
.flex { display: flex; }
.hidden-mobile { display: initial; }
@media (max-width: 768px) {
  .hidden-mobile { display: none !important; }
}
.only-mobile { display: none; }
@media (max-width: 768px) {
  .only-mobile { display: initial; }
}