/* ============================================================
   IN-N-OUT DIGITAL — DESIGN TOKENS & STYLES
   Art direction: Dark, sophisticated, VC-native proximity tech
   Palette: Deep navy/charcoal + teal accents + warm amber data
   ============================================================ */

/* --- TYPE SCALE --- */
:root {
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);

  /* --- SPACING (4px base) --- */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* --- FONTS --- */
  --font-display: 'Cabinet Grotesk', 'Satoshi', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;

  /* --- RADIUS --- */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* --- TRANSITIONS --- */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* --- CONTENT WIDTHS --- */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
}

/* --- DARK PALETTE (default) --- */
:root, [data-theme="dark"] {
  --color-bg:          #0B0F14;
  --color-surface:     #111820;
  --color-surface-2:   #17202B;
  --color-surface-3:   #1D2836;
  --color-border:      rgba(255,255,255,0.08);
  --color-border-strong: rgba(255,255,255,0.14);
  --color-text:        #E8E6E3;
  --color-text-muted:  #8A9BB0;
  --color-text-faint:  #4E5D6E;
  --color-primary:     #38BCC8;
  --color-primary-hover:#2DA3AE;
  --color-primary-dim: rgba(56,188,200,0.12);
  --color-amber:       #D4A546;
  --color-amber-dim:   rgba(212,165,70,0.12);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.6);
}

/* --- LIGHT PALETTE --- */
[data-theme="light"] {
  --color-bg:          #F5F3EF;
  --color-surface:     #FFFFFF;
  --color-surface-2:   #F0EDE8;
  --color-surface-3:   #E6E2DC;
  --color-border:      rgba(0,0,0,0.08);
  --color-border-strong: rgba(0,0,0,0.14);
  --color-text:        #1A1F26;
  --color-text-muted:  #5C6878;
  --color-text-faint:  #A0AABB;
  --color-primary:     #0E7C86;
  --color-primary-hover:#0A5F67;
  --color-primary-dim: rgba(14,124,134,0.08);
  --color-amber:       #B8892A;
  --color-amber-dim:   rgba(184,137,42,0.08);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --color-bg:          #F5F3EF;
    --color-surface:     #FFFFFF;
    --color-surface-2:   #F0EDE8;
    --color-surface-3:   #E6E2DC;
    --color-border:      rgba(0,0,0,0.08);
    --color-border-strong: rgba(0,0,0,0.14);
    --color-text:        #1A1F26;
    --color-text-muted:  #5C6878;
    --color-text-faint:  #A0AABB;
    --color-primary:     #0E7C86;
    --color-primary-hover:#0A5F67;
    --color-primary-dim: rgba(14,124,134,0.08);
    --color-amber:       #B8892A;
    --color-amber-dim:   rgba(184,137,42,0.08);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  }
}

/* ============================================================
   CONTAINER
   ============================================================ */
.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}
@media (min-width: 768px) {
  .container { padding-inline: var(--space-8); }
}

/* ============================================================
   HEADER
   ============================================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 0.3s var(--ease-out);
}
.header--scrolled { box-shadow: var(--shadow-sm); }

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

/* --- LOGO --- */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
}
.logo__mark { width: 32px; height: 32px; flex-shrink: 0; }
.logo__text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.logo__text span {
  display: block;
  font-weight: 400;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* --- NAV --- */
.nav {
  display: none;
  flex-direction: column;
  position: absolute;
  top: 64px;
  left: 0;
  right: 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4);
  gap: var(--space-2);
}
.nav.is-open { display: flex; }

@media (min-width: 768px) {
  .nav {
    display: flex;
    flex-direction: row;
    align-items: center;
    position: static;
    background: none;
    border: none;
    padding: 0;
    gap: var(--space-6);
  }
  .mobile-menu-btn { display: none; }
}

.nav__link {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-2) 0;
  transition: color var(--transition-interactive);
}
.nav__link:hover { color: var(--color-text); }

.nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2) var(--space-5);
  background: var(--color-primary);
  color: #fff;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background var(--transition-interactive), transform var(--transition-interactive);
}
.nav__cta:hover { background: var(--color-primary-hover); transform: translateY(-1px); }
.nav__cta:active { transform: translateY(0); }

.theme-toggle {
  color: var(--color-text-muted);
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: color var(--transition-interactive), background var(--transition-interactive);
}
.theme-toggle:hover { color: var(--color-text); background: var(--color-primary-dim); }

.mobile-menu-btn {
  color: var(--color-text);
  padding: var(--space-2);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    var(--color-bg) 0%,
    transparent 30%,
    transparent 60%,
    var(--color-bg) 100%
  );
}
.hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  padding-block: var(--space-32) var(--space-20);
}
.hero__eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}
.hero__title em {
  font-style: normal;
  color: var(--color-primary);
}
.hero__desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-8);
  max-width: 560px;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition-interactive),
              color var(--transition-interactive),
              transform var(--transition-interactive),
              box-shadow var(--transition-interactive);
}
.btn--primary {
  background: var(--color-primary);
  color: #fff;
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn--primary:active { transform: translateY(0); box-shadow: var(--shadow-sm); }

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}
.btn--outline:hover {
  background: var(--color-primary-dim);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ============================================================
   SECTION — shared patterns
   ============================================================ */
.section {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
}
.section__eyebrow {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.section__desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 600px;
  margin-bottom: var(--space-10);
}

/* ============================================================
   STATS BAR
   ============================================================ */
.stats {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-8);
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  text-align: center;
}
@media (min-width: 768px) {
  .stats__grid { grid-template-columns: repeat(4, 1fr); }
}
.stats__number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}
.stats__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ============================================================
   THE PHYSICS — tagline section
   ============================================================ */
.physics {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
  text-align: center;
}
.physics__quote {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
  max-width: 780px;
  margin: 0 auto var(--space-4);
  letter-spacing: -0.01em;
}
.physics__quote em {
  font-style: normal;
  color: var(--color-primary);
}
.physics__sub {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 520px;
  margin: 0 auto;
}

/* ============================================================
   THREE BUCKETS
   ============================================================ */
.buckets__grid {
  display: grid;
  gap: var(--space-6);
}
@media (min-width: 768px) {
  .buckets__grid { grid-template-columns: repeat(3, 1fr); }
}
.bucket-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}
.bucket-card:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
}
.bucket-card__icon {
  width: 40px;
  height: 40px;
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}
.bucket-card__label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.bucket-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.bucket-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-5);
}
.bucket-card__stat {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}
.bucket-card__stat-value {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-amber);
  font-variant-numeric: tabular-nums;
}
.bucket-card__stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ============================================================
   VENUE MAP
   ============================================================ */
.venues {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.venues__layout {
  display: grid;
  gap: var(--space-8);
}
@media (min-width: 768px) {
  .venues__layout { grid-template-columns: 1fr 1fr; align-items: start; }
}
.venue-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.venue-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-surface-2);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}
.venue-item__marker {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-dim);
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
}
.venue-item__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text);
  margin-bottom: var(--space-1);
}
.venue-item__detail {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.zones-visual {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.zone-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-2);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}
.zone-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}
.zone-dot--1 { background: var(--color-primary); }
.zone-dot--2 { background: #5B9BD5; }
.zone-dot--3 { background: var(--color-amber); }
.zone-dot--4 { background: #7BC67E; }
.zone-dot--5 { background: #C97BBD; }
.zone-name {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  flex: 1;
}
.zone-area {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.process__grid {
  display: grid;
  gap: var(--space-6);
  counter-reset: step;
}
@media (min-width: 768px) {
  .process__grid { grid-template-columns: repeat(3, 1fr); }
}
.process-step {
  counter-increment: step;
  position: relative;
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}
.process-step::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: var(--space-4);
}
.process-step__phase {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-amber);
  margin-bottom: var(--space-2);
}
.process-step__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.process-step__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================================
   MOAT / DIFFERENTIATOR
   ============================================================ */
.moat {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.moat__layout {
  display: grid;
  gap: var(--space-8);
}
@media (min-width: 768px) {
  .moat__layout { grid-template-columns: 1fr 1fr; align-items: center; }
}
.moat__text h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.moat__text p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}
.moat__points {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.moat-point {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}
.moat-point__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  margin-top: 2px;
}
.moat-point__content h3 {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}
.moat-point__content p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* ============================================================
   CTA
   ============================================================ */
.cta {
  text-align: center;
  padding-block: clamp(var(--space-16), 10vw, var(--space-32));
}
.cta__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.cta__desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 520px;
  margin: 0 auto var(--space-8);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-8);
}
.footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  text-align: center;
}
@media (min-width: 768px) {
  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}
.footer__copy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.footer__links {
  display: flex;
  gap: var(--space-6);
}
.footer__link {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.footer__link:hover { color: var(--color-text); }

/* ============================================================
   SCROLL REVEALS (CSS-only, no CLS)
   ============================================================ */
.fade-in {
  opacity: 1;
}
@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 100%;
  }
}
@keyframes reveal-fade {
  to { opacity: 1; }
}