/* ============================================================
   STAMPEDE DESIGN SYSTEM  (stampede-ds.css)
   ------------------------------------------------------------
   One Apple-grade design language for the whole site. Loaded as
   a NEW layer alongside the legacy stylesheet; pages migrate onto
   it one at a time. Everything is `sds-` prefixed so it can never
   collide with the old styles.

   Principles: ruthless consistency · generous whitespace ·
   one component for everything · calm, intentional motion ·
   restraint over decoration.
   ============================================================ */

/* ───────────────────────── TOKENS ───────────────────────── */
:root {
  /* Brand */
  --sds-gold:        #c79a3b;
  --sds-gold-soft:   rgba(199,154,59,0.12);
  --sds-gold-line:   rgba(199,154,59,0.30);
  --sds-ink-navy:    #1a2645;

  /* Light theme (default) — warm, paper-like, Apple-calm */
  --sds-canvas:      #faf8f3;   /* page background */
  --sds-surface:     #ffffff;   /* cards */
  --sds-surface-2:   #f3f0e9;   /* subtle panels */
  --sds-elev:        #ffffff;
  --sds-ink:         #16181d;    /* primary text */
  --sds-ink-2:       #5a5d66;    /* secondary */
  --sds-ink-3:       #8a8d96;    /* tertiary */
  --sds-line:        rgba(20,22,28,0.10);
  --sds-line-strong: rgba(20,22,28,0.16);
  --sds-good:        #178a4a;
  --sds-bad:         #c5402f;

  /* Type */
  --sds-font:        'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --sds-font-display:'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --sds-fs-eyebrow:  0.78rem;
  --sds-fs-caption:  0.82rem;
  --sds-fs-body:     1.0rem;
  --sds-fs-lead:     1.18rem;
  --sds-fs-h4:       1.25rem;
  --sds-fs-h3:       1.6rem;
  --sds-fs-h2:       clamp(1.7rem, 3.5vw, 2.4rem);
  --sds-fs-h1:       clamp(2.1rem, 5vw, 3.2rem);
  --sds-fs-display:  clamp(2.9rem, 8vw, 5.2rem);

  /* Space — 8pt scale */
  --sds-1: 4px;  --sds-2: 8px;  --sds-3: 12px; --sds-4: 16px;
  --sds-5: 24px; --sds-6: 32px; --sds-7: 48px; --sds-8: 64px;
  --sds-9: 96px; --sds-10: 128px;

  /* Radius */
  --sds-r-sm: 10px; --sds-r-md: 14px; --sds-r-lg: 20px; --sds-r-xl: 28px; --sds-r-full: 999px;

  /* Elevation */
  --sds-sh-1: 0 1px 2px rgba(20,22,28,0.06), 0 1px 3px rgba(20,22,28,0.05);
  --sds-sh-2: 0 6px 16px rgba(20,22,28,0.08);
  --sds-sh-3: 0 18px 48px rgba(20,22,28,0.14);

  /* Motion */
  --sds-ease: cubic-bezier(0.16, 0.84, 0.44, 1);
  --sds-ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --sds-dur-1: 0.18s; --sds-dur-2: 0.4s; --sds-dur-3: 0.7s;

  /* Layout */
  --sds-container: 1120px;
  --sds-gutter: clamp(18px, 5vw, 40px);
}

html[data-theme="dark"] {
  --sds-canvas:      #0c0d11;
  --sds-surface:     #15161c;
  --sds-surface-2:   #1b1d24;
  --sds-elev:        #1a1c22;
  --sds-ink:         #f3f0e7;
  --sds-ink-2:       #a8abb4;
  --sds-ink-3:       #7c7f88;
  --sds-line:        rgba(255,255,255,0.10);
  --sds-line-strong: rgba(255,255,255,0.16);
  --sds-gold:        #d4af37;
  --sds-sh-1: 0 1px 3px rgba(0,0,0,0.4);
  --sds-sh-2: 0 6px 18px rgba(0,0,0,0.45);
  --sds-sh-3: 0 18px 48px rgba(0,0,0,0.55);
}

/* ──────────────────────── PRIMITIVES ─────────────────────── */
.sds { font-family: var(--sds-font); color: var(--sds-ink); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
.sds-container { width: 100%; max-width: var(--sds-container); margin-inline: auto; padding-inline: var(--sds-gutter); box-sizing: border-box; }
.sds-section { padding-block: clamp(48px, 9vw, 112px); }
.sds-section--tight { padding-block: clamp(32px, 6vw, 64px); }
.sds-bg { background: var(--sds-canvas); }
.sds-bg-2 { background: var(--sds-surface-2); }

/* Type helpers */
.sds-eyebrow { font-size: var(--sds-fs-eyebrow); font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--sds-gold); }
.sds-display { font-family: var(--sds-font-display); font-weight: 600; font-size: var(--sds-fs-display); line-height: 1.02; letter-spacing: -0.01em; color: var(--sds-ink); }
.sds-h1 { font-family: var(--sds-font-display); font-weight: 600; font-size: var(--sds-fs-h1); line-height: 1.08; letter-spacing: -0.01em; color: var(--sds-ink); margin: 0; }
.sds-h2 { font-family: var(--sds-font-display); font-weight: 600; font-size: var(--sds-fs-h2); line-height: 1.12; color: var(--sds-ink); margin: 0; }
.sds-h3 { font-weight: 700; font-size: var(--sds-fs-h3); line-height: 1.2; letter-spacing: -0.01em; color: var(--sds-ink); margin: 0; }
.sds-h4 { font-weight: 700; font-size: var(--sds-fs-h4); line-height: 1.3; color: var(--sds-ink); margin: 0; }
.sds-lead { font-size: var(--sds-fs-lead); line-height: 1.55; color: var(--sds-ink-2); font-weight: 400; }
.sds-body { font-size: var(--sds-fs-body); line-height: 1.65; color: var(--sds-ink-2); }
.sds-caption { font-size: var(--sds-fs-caption); line-height: 1.5; color: var(--sds-ink-3); }
.sds-muted { color: var(--sds-ink-3); }

/* ───────────────────────── BUTTONS ───────────────────────── */
.sds-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: inherit; font-weight: 600; font-size: 0.98rem; line-height: 1;
  padding: 14px 24px; border-radius: var(--sds-r-full); border: 1px solid transparent;
  cursor: pointer; text-decoration: none; white-space: nowrap; min-height: 48px;
  transition: transform var(--sds-dur-1) var(--sds-ease), background var(--sds-dur-1) var(--sds-ease), box-shadow var(--sds-dur-1) var(--sds-ease), border-color var(--sds-dur-1) var(--sds-ease);
  -webkit-tap-highlight-color: transparent;
}
.sds-btn:active { transform: scale(0.97); }
.sds-btn--primary { background: var(--sds-gold); color: #1a2238; box-shadow: var(--sds-sh-2); }
.sds-btn--primary:hover { filter: brightness(1.04); box-shadow: var(--sds-sh-3); }
.sds-btn--dark { background: var(--sds-ink-navy); color: #fff; }
.sds-btn--dark:hover { filter: brightness(1.12); }
.sds-btn--ghost { background: transparent; color: var(--sds-ink); border-color: var(--sds-line-strong); }
.sds-btn--ghost:hover { border-color: var(--sds-gold); color: var(--sds-gold); }
.sds-btn--sm { padding: 9px 16px; font-size: 0.88rem; min-height: 40px; }
.sds-btn--lg { padding: 17px 30px; font-size: 1.06rem; min-height: 56px; }
.sds-btn--block { width: 100%; }

/* ───────────────────────── CHIPS ─────────────────────────── */
.sds-chip {
  display: inline-flex; align-items: center; gap: 6px; font-size: 0.86rem; font-weight: 600;
  padding: 9px 15px; border-radius: var(--sds-r-full); border: 1px solid var(--sds-line-strong);
  background: var(--sds-surface); color: var(--sds-ink); text-decoration: none; cursor: pointer;
  transition: border-color var(--sds-dur-1) var(--sds-ease), background var(--sds-dur-1) var(--sds-ease), transform var(--sds-dur-1) var(--sds-ease);
}
.sds-chip:hover { border-color: var(--sds-gold); transform: translateY(-1px); }
.sds-chip--on { background: var(--sds-ink-navy); color: #fff; border-color: var(--sds-ink-navy); }

/* ───────────────────────── CARDS ─────────────────────────── */
.sds-card {
  background: var(--sds-surface); border: 1px solid var(--sds-line); border-radius: var(--sds-r-lg);
  box-shadow: var(--sds-sh-1); overflow: hidden;
  transition: transform var(--sds-dur-2) var(--sds-ease), box-shadow var(--sds-dur-2) var(--sds-ease), border-color var(--sds-dur-2) var(--sds-ease);
}
@media (hover: hover) { .sds-card--hover:hover { transform: translateY(-4px); box-shadow: var(--sds-sh-3); border-color: var(--sds-gold-line); } }
.sds-card__body { padding: var(--sds-5); }

/* ───────────────────────── INPUTS ────────────────────────── */
.sds-input {
  width: 100%; box-sizing: border-box; font-family: inherit; font-size: 1rem; color: var(--sds-ink);
  background: var(--sds-surface); border: 1px solid var(--sds-line-strong); border-radius: var(--sds-r-md);
  padding: 15px 18px; transition: border-color var(--sds-dur-1) var(--sds-ease), box-shadow var(--sds-dur-1) var(--sds-ease);
}
.sds-input::placeholder { color: var(--sds-ink-3); }
.sds-input:focus { outline: none; border-color: var(--sds-gold); box-shadow: 0 0 0 4px var(--sds-gold-soft); }
.sds-field-label { display: block; font-size: 0.8rem; font-weight: 600; color: var(--sds-ink-2); margin-bottom: 6px; }

/* ───────────────────────── GRID ──────────────────────────── */
.sds-grid { display: grid; gap: var(--sds-4); }
.sds-grid--2 { grid-template-columns: repeat(2, 1fr); }
.sds-grid--3 { grid-template-columns: repeat(3, 1fr); }
.sds-grid--4 { grid-template-columns: repeat(4, 1fr); }
.sds-grid--auto { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
@media (max-width: 900px) { .sds-grid--4 { grid-template-columns: repeat(2, 1fr); } .sds-grid--3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .sds-grid--2, .sds-grid--3, .sds-grid--4 { grid-template-columns: 1fr; } }

/* ───────────────────────── PILL / BADGE ──────────────────── */
.sds-pill { display: inline-flex; align-items: center; gap: 7px; padding: 6px 14px; border-radius: var(--sds-r-full);
  background: var(--sds-gold-soft); border: 1px solid var(--sds-gold-line); color: var(--sds-gold);
  font-size: 0.76rem; font-weight: 700; letter-spacing: 0.04em; }
.sds-pill__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--sds-good); }

/* ───────────────────────── DIVIDER ───────────────────────── */
.sds-hr { height: 1px; background: var(--sds-line); border: 0; margin: 0; }

/* ───────────────────────── MOTION ────────────────────────── */
.sds-reveal { opacity: 0; transform: translateY(24px); transition: opacity var(--sds-dur-3) var(--sds-ease), transform var(--sds-dur-3) var(--sds-ease); will-change: opacity, transform; }
.sds-reveal.is-in { opacity: 1; transform: none; }
.sds-reveal[data-delay="1"] { transition-delay: 0.06s; }
.sds-reveal[data-delay="2"] { transition-delay: 0.12s; }
.sds-reveal[data-delay="3"] { transition-delay: 0.18s; }
.sds-reveal[data-delay="4"] { transition-delay: 0.24s; }

@media (prefers-reduced-motion: reduce) {
  .sds-reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .sds-btn, .sds-card, .sds-chip { transition: none !important; }
}

/* ───────────────────────── HERO ──────────────────────────── */
.sds-hero { background: var(--sds-canvas); position: relative; overflow: hidden; }
.sds-hero__inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(36px, 6vw, 88px); align-items: center; padding-block: clamp(64px, 12vw, 168px); }
.sds-hero__copy { min-width: 0; }
.sds-hero .sds-display { letter-spacing: -0.025em; }

/* Headline gold shimmer (premium accent on "I move faster") */
.sds-shimmer { background: linear-gradient(100deg, var(--sds-gold) 28%, #efd486 50%, var(--sds-gold) 72%); background-size: 220% auto; -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; animation: sdsShimmer 5.5s linear infinite; }
@keyframes sdsShimmer { to { background-position: 220% center; } }

/* Choreographed entrance — elements rise + fade in sequence on load (Apple-calm) */
@keyframes sdsRise { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: none; } }
.sds-hero__copy > * { animation: sdsRise 1s var(--sds-ease-out) both; }
.sds-hero__copy > *:nth-child(1) { animation-delay: .05s; }
.sds-hero__copy > *:nth-child(2) { animation-delay: .16s; }
.sds-hero__copy > *:nth-child(3) { animation-delay: .30s; }
.sds-hero__copy > *:nth-child(4) { animation-delay: .44s; }
.sds-hero__copy > *:nth-child(5) { animation-delay: .56s; }
.sds-hero__media { animation: sdsRise 1.15s var(--sds-ease-out) both; animation-delay: .22s; }
@media (prefers-reduced-motion: reduce) {
  .sds-hero__copy > *, .sds-hero__media { animation: none !important; }
  .sds-shimmer { animation: none !important; }
}
.sds-hero__media { position: relative; display: flex; flex-direction: column; align-items: center; }
.sds-hero__photo { width: 100%; max-width: 420px; aspect-ratio: 4/5; border-radius: var(--sds-r-xl); overflow: hidden; background: var(--sds-surface-2); box-shadow: var(--sds-sh-3); }
.sds-hero__photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.sds-hero__social { display: flex; gap: 10px; margin-top: 18px; }
.sds-hero__social a { width: 42px; height: 42px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: var(--sds-surface); border: 1px solid var(--sds-line); color: var(--sds-ink-2); transition: color var(--sds-dur-1) var(--sds-ease), border-color var(--sds-dur-1) var(--sds-ease), transform var(--sds-dur-1) var(--sds-ease); }
.sds-hero__social a:hover { color: var(--sds-gold); border-color: var(--sds-gold); transform: translateY(-2px); }
.sds-hero__social svg { width: 19px; height: 19px; fill: currentColor; }
@media (max-width: 900px) {
  .sds-hero__inner { grid-template-columns: 1fr; text-align: center; gap: 30px; }
  .sds-hero__copy .sds-row { justify-content: center; }
  .sds-hero__copy .sds-maxw-prose { margin-inline: auto; }
  .sds-hero__media { order: -1; }
  .sds-hero__photo { max-width: 300px; }
}

/* ───────────────────────── UTILITIES ─────────────────────── */
.sds-center { text-align: center; }
.sds-stack > * + * { margin-top: var(--sds-3); }
.sds-row { display: flex; align-items: center; gap: var(--sds-3); flex-wrap: wrap; }
.sds-row--center { justify-content: center; }
.sds-maxw-prose { max-width: 60ch; }
.sds-maxw-md { max-width: 720px; }
.sds-mx-auto { margin-inline: auto; }