/* ═══════════════════════════════════════════════════
   Margin Labs — style.css
   Iron + Copper palette · DM Sans + DM Mono
   Dark mode default · light mode via data-theme="light"
   ═══════════════════════════════════════════════════ */

/* ── THEME TOKENS ───────────────────────────────── */
:root {
  --copper:    #C8823C;
  --copper-lt: #D9944E;
  --copper-dk: #9E6228;
  --font:      'DM Sans', system-ui, sans-serif;
  --mono:      'DM Mono', monospace;
}

[data-theme="dark"] {
  --bg:         #0A0A0A;
  --bg2:        #111111;
  --bg3:        #171717;
  --bg4:        #1E1E1E;
  --bg5:        #252525;
  --bg-mm:      #141414;
  --bg-product: #0F0F0F;
  --border:     rgba(200,130,60,0.13);
  --border2:    rgba(240,235,228,0.07);
  --text:       #F0EBE4;
  --dim:        rgba(240,235,228,0.52);
  --dimmer:     rgba(240,235,228,0.26);
  --nav-bg:     #111111;
  --nav-border: rgba(240,235,228,0.07);
  --hero-glow:  rgba(200,130,60,0.05);
  --input-bg:   #1A1A1A;
  --input-border: rgba(240,235,228,0.10);
  --input-text: rgba(240,235,228,0.45);
  --footer-bg:  #0D0D0D;
  --stat-bg:    #1E1E1E;
  --card-bg:    #1A1A1A;
  --toggle-bg:  #2A2A2A;
}

[data-theme="light"] {
  --bg:         #F5F0EA;
  --bg2:        #FFFFFF;
  --bg3:        #FAF7F3;
  --bg4:        #F0EBE3;
  --bg5:        #E8E0D5;
  --bg-mm:      #F5F0EA;
  --bg-product: #F0EBE3;
  --border:     rgba(158,98,40,0.15);
  --border2:    rgba(30,20,10,0.08);
  --text:       #1A1208;
  --dim:        rgba(30,20,10,0.55);
  --dimmer:     rgba(30,20,10,0.28);
  --nav-bg:     #FFFFFF;
  --nav-border: rgba(30,20,10,0.08);
  --hero-glow:  rgba(200,130,60,0.07);
  --input-bg:   #F5F0EA;
  --input-border: rgba(30,20,10,0.15);
  --input-text: rgba(30,20,10,0.40);
  --footer-bg:  #EDE7DF;
  --stat-bg:    #EDE7DF;
  --card-bg:    #EDE7DF;
  --toggle-bg:  #E8E0D5;
}

/* ── RESET ──────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  font-family: var(--font);
  color: var(--text);
  line-height: 1.6;
  transition: background 0.3s ease, color 0.3s ease;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ── WORDMARK ───────────────────────────────────── */
.wordmark { display: flex; flex-direction: column; gap: 1px; }
.wm-text { letter-spacing: -0.025em; line-height: 1; white-space: nowrap; }
.wm-text .mg { font-weight: 300; color: var(--text); transition: color 0.3s; }
.wm-text .lb { font-weight: 700; color: var(--copper); }
.wm-tag {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dimmer);
  transition: color 0.3s;
}

/* ── NAV ────────────────────────────────────────── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
  padding: 0 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
  transition: background 0.3s, border-color 0.3s;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.nav-brand .wm-text { font-size: 19px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  font-size: 13px;
  font-weight: 400;
  color: var(--dim);
  letter-spacing: 0.02em;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--text); }
.nav-links a.nav-cta {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--copper) !important;
  border: 1px solid rgba(200,130,60,0.35);
  padding: 7px 16px;
  border-radius: 2px;
  transition: background 0.15s, color 0.15s;
}
.nav-links a.nav-cta:hover {
  background: var(--copper);
  color: #111 !important;
  border-color: var(--copper);
}

/* Nav right controls */
.nav-controls {
  display: flex;
  align-items: center;
  gap: 20px;
}

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--toggle-bg);
  border: none;
  border-radius: 20px;
  padding: 5px 12px 5px 9px;
  cursor: pointer;
  transition: background 0.2s, opacity 0.2s;
}
.theme-toggle:hover { opacity: 0.8; }
.theme-toggle-icon { font-size: 13px; line-height: 1; }
.theme-toggle-text {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dimmer);
}

/* Mobile hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--dim);
  transition: transform 0.25s, opacity 0.25s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile nav drawer */
.nav-mobile {
  display: none;
  position: fixed;
  top: 64px;
  left: 0; right: 0;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
  padding: 24px 32px 28px;
  z-index: 199;
  transform: translateY(-8px);
  opacity: 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav-mobile.open {
  transform: translateY(0);
  opacity: 1;
}
.nav-mobile ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.nav-mobile ul a {
  display: block;
  font-size: 15px;
  font-weight: 400;
  color: var(--dim);
  padding: 10px 0;
  border-bottom: 1px solid var(--border2);
  letter-spacing: 0.02em;
  transition: color 0.15s;
}
.nav-mobile ul a:last-child { border-bottom: none; }
.nav-mobile ul a:hover, .nav-mobile ul a.nav-cta { color: var(--copper); }
.nav-mobile-toggle {
  margin-top: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ── HERO ───────────────────────────────────────── */
.hero {
  position: relative;
  overflow: hidden;
  padding: 72px 48px 64px;
  background: var(--bg2);
  transition: background 0.3s;
}
.hero::before {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 520px; height: 520px;
  background: radial-gradient(circle, var(--hero-glow) 0%, transparent 65%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(200,130,60,0.18), transparent);
}
.hero-inner { max-width: 1080px; margin: 0 auto; }

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero-eyebrow::before {
  content: '';
  width: 18px; height: 1px;
  background: var(--copper);
  opacity: 0.55;
}

.hero-h1 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 300;
  color: var(--text);
  line-height: 1.2;
  letter-spacing: -0.025em;
  max-width: 640px;
  margin-bottom: 22px;
  transition: color 0.3s;
}
.hero-h1 strong { font-weight: 600; }

.hero-sub {
  font-size: 15px;
  font-weight: 300;
  color: var(--dim);
  max-width: 520px;
  line-height: 1.8;
  margin-bottom: 38px;
  transition: color 0.3s;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.btn-primary {
  background: var(--copper);
  color: #111;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 14px 28px;
  border-radius: 2px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 0.15s;
  white-space: nowrap;
}
.btn-primary:hover { background: var(--copper-lt); }

.btn-ghost {
  font-size: 13px;
  font-weight: 400;
  color: var(--dim);
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.15s;
}
.btn-ghost:hover { color: var(--text); }

/* Self-sort tiles */
.self-sort {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.sort-tile {
  background: var(--bg3);
  border: 1px solid var(--border2);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  text-decoration: none;
}
.sort-tile:hover {
  border-color: rgba(200,130,60,0.3);
  background: var(--bg4);
}
.sort-tile-text {
  font-size: 12px;
  font-weight: 400;
  color: var(--dim);
  line-height: 1.5;
  transition: color 0.2s;
}
.sort-tile:hover .sort-tile-text { color: var(--text); }
.sort-tile-arrow {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--copper);
  opacity: 0.5;
  flex-shrink: 0;
  transition: opacity 0.2s;
}
.sort-tile:hover .sort-tile-arrow { opacity: 1; }

/* ── MARGIN MULTIPLIER ──────────────────────────── */
.mm-section {
  background: var(--bg-mm);
  border-top: 1px solid var(--border2);
  border-bottom: 1px solid var(--border2);
  transition: background 0.3s;
}
.mm-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 56px 48px;
}
.mm-header { margin-bottom: 36px; }
.mm-eyebrow {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--copper);
  opacity: 0.75;
  margin-bottom: 12px;
}
.mm-title {
  font-size: 28px;
  font-weight: 300;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.2;
  transition: color 0.3s;
}
.mm-title strong { font-weight: 600; }
.mm-subtitle {
  font-size: 13px;
  font-weight: 300;
  color: var(--dim);
  max-width: 560px;
  line-height: 1.8;
  transition: color 0.3s;
}

.mm-models {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  margin: 32px 0;
}
.mm-model {
  background: var(--card-bg);
  padding: 22px 18px;
  position: relative;
  border-top: 2px solid transparent;
  transition: background 0.3s;
}
.mm-model.active { border-top-color: var(--copper); }
.mm-model-num {
  font-family: var(--mono);
  font-size: 8px;
  color: var(--copper);
  letter-spacing: 0.16em;
  margin-bottom: 10px;
  opacity: 0.6;
}
.mm-model-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
  line-height: 1.3;
  transition: color 0.3s;
}
.mm-model-desc {
  font-size: 11px;
  font-weight: 300;
  color: var(--dim);
  line-height: 1.65;
  margin-bottom: 14px;
  transition: color 0.3s;
}
.mm-model-rate {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--copper-lt);
  letter-spacing: 0.05em;
}

/* MM email gate */
.mm-gate {
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 28px 28px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: end;
  transition: background 0.3s;
}
.mm-gate-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--copper);
  opacity: 0.7;
  margin-bottom: 8px;
}
.mm-gate-headline {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
  letter-spacing: -0.01em;
  max-width: 480px;
  transition: color 0.3s;
}
.mm-gate-sub {
  font-size: 11px;
  font-weight: 300;
  color: var(--dim);
  line-height: 1.6;
  transition: color 0.3s;
}
.mm-form {
  display: flex;
  gap: 8px;
  align-items: flex-end;
  flex-wrap: wrap;
}
.mm-form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.mm-form-label {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dimmer);
}
.mm-input, .mm-select {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 2px;
  padding: 9px 12px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--input-text);
  letter-spacing: 0.04em;
  transition: all 0.3s;
  appearance: none;
  -webkit-appearance: none;
}
.mm-input { width: 180px; }
.mm-select { width: 148px; }
.mm-input:focus, .mm-select:focus {
  outline: none;
  border-color: rgba(200,130,60,0.4);
}
.mm-btn {
  background: var(--copper);
  color: #111;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  padding: 9px 18px;
  border-radius: 2px;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s;
}
.mm-btn:hover { background: var(--copper-lt); }

/* ── SECTION WRAPPER ────────────────────────────── */
.section-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 48px;
}
.section-tag {
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--dimmer);
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}
.section-tag::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border2);
}

/* ── USE CASES ──────────────────────────────────── */
.use-cases {
  background: var(--bg2);
  border-bottom: 1px solid var(--border2);
  transition: background 0.3s;
}
.uc-header {
  max-width: 1080px;
  margin: 0 auto;
  padding: 52px 48px 24px;
}
.uc-eyebrow {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--copper);
  opacity: 0.7;
  margin-bottom: 8px;
}
.uc-title {
  font-size: 22px;
  font-weight: 300;
  letter-spacing: -0.02em;
  color: var(--text);
  transition: color 0.3s;
}
.uc-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border2);
  max-width: 1080px;
  margin: 0 auto;
}
.uc-item {
  background: var(--bg2);
  padding: 28px 24px 32px;
  transition: background 0.3s;
}
.uc-item.muted { background: var(--bg3); }
.uc-num {
  font-family: var(--mono);
  font-size: 8px;
  color: var(--copper);
  letter-spacing: 0.16em;
  margin-bottom: 12px;
  opacity: 0.65;
}
.uc-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
  line-height: 1.3;
  transition: color 0.3s;
}
.uc-desc {
  font-size: 11px;
  font-weight: 300;
  color: var(--dim);
  line-height: 1.7;
  transition: color 0.3s;
}

/* ── WHY MARGIN LABS ────────────────────────────── */
.why-section {
  background: var(--bg3);
  border-bottom: 1px solid var(--border2);
  transition: background 0.3s;
}
.why-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 60px 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.why-eyebrow {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--copper);
  opacity: 0.75;
  margin-bottom: 16px;
}
.why-h2 {
  font-size: 26px;
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 16px;
  transition: color 0.3s;
}
.why-h2 strong { font-weight: 600; }
.why-body {
  font-size: 13px;
  font-weight: 300;
  color: var(--dim);
  line-height: 1.85;
  transition: color 0.3s;
}
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}
.stat-cell {
  background: var(--stat-bg);
  padding: 24px 20px;
  transition: background 0.3s;
}
.stat-num {
  font-size: 28px;
  font-weight: 300;
  letter-spacing: -0.03em;
  color: var(--copper-lt);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 11px;
  font-weight: 300;
  color: var(--dim);
  line-height: 1.5;
  transition: color 0.3s;
}

/* ── PRODUCTS ───────────────────────────────────── */
.products-section {
  background: var(--bg-product);
  border-bottom: 1px solid var(--border2);
  transition: background 0.3s;
}
.products-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 56px 48px;
}
.prod-header { margin-bottom: 32px; }
.prod-eyebrow {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--copper);
  opacity: 0.7;
  margin-bottom: 10px;
}
.prod-title {
  font-size: 22px;
  font-weight: 300;
  letter-spacing: -0.02em;
  color: var(--text);
  transition: color 0.3s;
}
.prod-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}
.prod-card {
  background: var(--bg3);
  padding: 32px 28px;
  position: relative;
  transition: background 0.3s;
}
.prod-card-tag {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--copper);
  opacity: 0.65;
  margin-bottom: 14px;
}
.prod-card-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
  margin-bottom: 6px;
  transition: color 0.3s;
}
.prod-card-price {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 400;
  color: var(--copper);
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}
.prod-card-desc {
  font-size: 12px;
  font-weight: 300;
  color: var(--dim);
  line-height: 1.75;
  margin-bottom: 22px;
  transition: color 0.3s;
}
.prod-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--copper);
  border-bottom: 1px solid rgba(200,130,60,0.3);
  padding-bottom: 2px;
  transition: border-color 0.15s, opacity 0.15s;
}
.prod-cta:hover { border-color: var(--copper); opacity: 0.85; }
.prod-soon {
  position: absolute;
  top: 20px; right: 20px;
  background: rgba(200,130,60,0.12);
  border: 1px solid rgba(200,130,60,0.25);
  border-radius: 2px;
  padding: 3px 8px;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--copper);
}

/* ── CONTACT FORM ───────────────────────────────── */
.contact-section {
  background: var(--bg2);
  border-bottom: 1px solid var(--border2);
  transition: background 0.3s;
}
.contact-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 60px 48px;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: start;
}
.contact-eyebrow {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--copper);
  opacity: 0.7;
  margin-bottom: 14px;
}
.contact-h2 {
  font-size: 26px;
  font-weight: 300;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.3;
  transition: color 0.3s;
}
.contact-h2 strong { font-weight: 600; }
.contact-sub {
  font-size: 13px;
  font-weight: 300;
  color: var(--dim);
  line-height: 1.8;
  transition: color 0.3s;
}

/* Form fields */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 10px;
}
.form-full { margin-bottom: 10px; }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-label {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dimmer);
}
.form-input, .form-select, .form-textarea {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 2px;
  padding: 10px 13px;
  font-family: var(--font);
  font-size: 13px;
  color: var(--input-text);
  width: 100%;
  transition: all 0.3s;
}
.form-select {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.03em;
  appearance: none;
  -webkit-appearance: none;
}
.form-textarea {
  resize: none;
  height: 88px;
  display: block;
  margin-bottom: 16px;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: rgba(200,130,60,0.45);
}
.form-submit {
  background: var(--copper);
  color: #111;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 13px 28px;
  border-radius: 2px;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 0.15s;
}
.form-submit:hover { background: var(--copper-lt); }
.form-note {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.08em;
  color: var(--dimmer);
  margin-top: 10px;
  line-height: 1.6;
}

/* ── FOOTER ─────────────────────────────────────── */
.site-footer {
  background: var(--footer-bg);
  padding: 26px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  transition: background 0.3s;
}
.site-footer .wm-text { font-size: 13px; }
.footer-copy {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.10em;
  color: var(--dimmer);
  text-transform: uppercase;
  transition: color 0.3s;
}
.footer-copy a {
  color: inherit;
  transition: color 0.15s;
}
.footer-copy a:hover { color: var(--copper); }

/* ── PAGE HERO (about/principal) ────────────────── */
.page-hero {
  background: var(--bg2);
  padding: 72px 48px 64px;
  border-bottom: 1px solid var(--border2);
  position: relative;
  overflow: hidden;
  transition: background 0.3s;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, var(--hero-glow) 0%, transparent 65%);
  pointer-events: none;
}
.page-hero-inner { max-width: 1080px; margin: 0 auto; }
.page-hero-eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-hero-eyebrow::before {
  content: '';
  width: 18px; height: 1px;
  background: var(--copper);
  opacity: 0.55;
}
.page-hero h1 {
  font-size: clamp(26px, 3.5vw, 38px);
  font-weight: 300;
  letter-spacing: -0.025em;
  line-height: 1.2;
  color: var(--text);
  max-width: 580px;
  margin-bottom: 18px;
  transition: color 0.3s;
}
.page-hero h1 strong { font-weight: 600; }
.page-hero p {
  font-size: 15px;
  font-weight: 300;
  color: var(--dim);
  max-width: 500px;
  line-height: 1.8;
  transition: color 0.3s;
}

/* ── CONTENT SECTIONS (about/principal) ─────────── */
.content-section {
  padding: 60px 48px;
  border-bottom: 1px solid var(--border2);
  transition: background 0.3s;
}
.content-section:nth-child(even) { background: var(--bg3); }
.content-section:nth-child(odd)  { background: var(--bg2); }
.content-inner { max-width: 1080px; margin: 0 auto; }

.content-eyebrow {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--copper);
  opacity: 0.75;
  margin-bottom: 14px;
}
.content-h2 {
  font-size: 24px;
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 20px;
  transition: color 0.3s;
}
.content-h2 strong { font-weight: 600; }
.content-body {
  font-size: 14px;
  font-weight: 300;
  color: var(--dim);
  line-height: 1.85;
  max-width: 680px;
  transition: color 0.3s;
}
.content-body p + p { margin-top: 16px; }

/* Two-column content layout */
.content-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

/* Steps (How It Works) */
.steps-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  margin-top: 32px;
}
.step-card {
  background: var(--bg3);
  padding: 28px 24px;
  transition: background 0.3s;
}
[data-theme="dark"] .step-card { background: var(--bg4); }
.step-num {
  font-family: var(--mono);
  font-size: 8px;
  color: var(--copper);
  letter-spacing: 0.16em;
  margin-bottom: 10px;
  opacity: 0.7;
}
.step-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
  transition: color 0.3s;
}
.step-body {
  font-size: 12px;
  font-weight: 300;
  color: var(--dim);
  line-height: 1.7;
  transition: color 0.3s;
}

/* Tags (What It's Not) */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}
.tag-item {
  background: var(--bg4);
  border: 1px solid var(--border2);
  border-radius: 2px;
  padding: 6px 14px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--dimmer);
  transition: all 0.3s;
}

/* "What I Believe" list */
.belief-list {
  list-style: none;
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.belief-item {
  background: var(--bg3);
  border-left: 3px solid var(--border);
  padding: 18px 20px;
  font-size: 14px;
  font-weight: 300;
  color: var(--dim);
  line-height: 1.7;
  transition: background 0.3s, border-color 0.2s, color 0.3s;
}
[data-theme="dark"] .belief-item { background: var(--bg4); }
.belief-item:hover {
  border-left-color: var(--copper);
  color: var(--text);
}

/* CTA block (about/principal) */
.cta-block {
  max-width: 1080px;
  margin: 0 auto;
  padding: 56px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border2);
  background: var(--bg2);
  transition: background 0.3s;
}
.cta-block-left h3 {
  font-size: 22px;
  font-weight: 300;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 8px;
  transition: color 0.3s;
}
.cta-block-left h3 strong { font-weight: 600; }
.cta-block-left p {
  font-size: 13px;
  font-weight: 300;
  color: var(--dim);
  max-width: 440px;
  line-height: 1.7;
  transition: color 0.3s;
}

/* ── FORM SUCCESS MESSAGE ────────────────────────── */
.form-success {
  display: none;
  background: rgba(200,130,60,0.08);
  border: 1px solid rgba(200,130,60,0.25);
  border-radius: 2px;
  padding: 16px 20px;
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--copper);
}

/* ── MOBILE RESPONSIVE ──────────────────────────── */
@media (max-width: 900px) {
  .site-nav { padding: 0 32px; }
  .hero { padding: 56px 32px 48px; }
  .why-inner { grid-template-columns: 1fr; gap: 40px; padding: 48px 32px; }
  .mm-inner { padding: 48px 32px; }
  .uc-header { padding: 44px 32px 20px; }
  .products-inner { padding: 48px 32px; }
  .contact-inner { grid-template-columns: 1fr; gap: 40px; padding: 48px 32px; }
  .site-footer { padding: 24px 32px; }
  .page-hero { padding: 56px 32px 48px; }
  .content-section { padding: 48px 32px; }
  .cta-block { padding: 48px 32px; }
  .content-split { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-mobile { display: block; }
  .theme-toggle .theme-toggle-text { display: none; }

  .self-sort { grid-template-columns: 1fr; }
  .mm-models { grid-template-columns: 1fr 1fr; }
  .mm-gate { grid-template-columns: 1fr; }
  .mm-form { flex-direction: column; align-items: stretch; }
  .mm-input, .mm-select { width: 100%; }

  .uc-grid { grid-template-columns: 1fr 1fr; }
  .prod-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }

  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .site-nav { padding: 0 20px; }
  .hero { padding: 44px 20px 40px; }
  .hero-h1 { font-size: 26px; }
  .mm-inner, .uc-header, .products-inner,
  .contact-inner, .why-inner, .cta-block,
  .content-section, .page-hero { padding-left: 20px; padding-right: 20px; }
  .mm-models { grid-template-columns: 1fr; }
  .uc-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .site-footer { padding: 20px; flex-direction: column; align-items: flex-start; gap: 12px; }
}

/* ── ANIMATIONS ─────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero-eyebrow, .hero-h1, .hero-sub, .hero-actions, .self-sort {
  animation: fadeUp 0.6s ease both;
}
.hero-eyebrow { animation-delay: 0.05s; }
.hero-h1      { animation-delay: 0.15s; }
.hero-sub     { animation-delay: 0.25s; }
.hero-actions { animation-delay: 0.35s; }
.self-sort    { animation-delay: 0.45s; }