/* ============================================================
   思湃智能制造 — 设计系统
   概念方向：精密工业 · 机器视觉 · 数据可信
   ============================================================ */

:root {
  /* Type Scale */
  --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, 3.25rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 4.5rem);

  /* 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;

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.625rem;
  --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);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 1040px;
  --content-wide: 1280px;
  --content-full: 100%;

  /* Fonts */
  --font-display: 'Cabinet Grotesk', 'General Sans', 'Segoe UI', sans-serif;
  --font-body: 'General Sans', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', monospace;
}

/* ===== LIGHT MODE (default) ===== */
:root,
[data-theme='light'] {
  /* Surfaces — clean white, corporate confidence */
  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-surface-2: #fbfcfd;
  --color-surface-offset: #eef1f4;
  --color-surface-offset-2: #e4e8ed;
  --color-surface-dynamic: #d8dee5;
  --color-divider: #e1e5ea;
  --color-border: #ccd3db;

  /* Text — deep navy ink (from brand book) */
  --color-text: #12233a;
  --color-text-muted: #526075;
  --color-text-faint: #97a1af;
  --color-text-inverse: #f6f8fa;

  /* Primary Accent — brand navy (from brand book #1a3a5c family) */
  --color-primary: #1a4a7a;
  --color-primary-hover: #133a61;
  --color-primary-active: #0d2c49;
  --color-primary-highlight: #dce8f4;

  /* Secondary accent — brand orange (from brand book #e8621a family) */
  --color-accent: #e2600f;
  --color-accent-hover: #c74f0a;
  --color-accent-active: #a84109;
  --color-accent-highlight: #fbe3d2;

  /* Secondary accent — steel */
  --color-steel: #3d5069;

  /* Success / Warning / Error */
  --color-success: #2f7d4f;
  --color-success-highlight: #d4ecdd;
  --color-warning: #a15b12;
  --color-warning-highlight: #eddac2;
  --color-error: #a4304a;
  --color-error-highlight: #ecd3da;

  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.625rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px oklch(0.15 0.02 240 / 0.08);
  --shadow-md: 0 6px 20px oklch(0.15 0.02 240 / 0.10);
  --shadow-lg: 0 16px 40px oklch(0.15 0.02 240 / 0.16);
}

/* ===== DARK MODE ===== */
[data-theme='dark'] {
  --color-bg: #0a1420;
  --color-surface: #101d2e;
  --color-surface-2: #142236;
  --color-surface-offset: #17273c;
  --color-surface-offset-2: #1c2f47;
  --color-surface-dynamic: #253d5a;
  --color-divider: #1e3049;
  --color-border: #28405e;

  --color-text: #e8edf4;
  --color-text-muted: #9aabc0;
  --color-text-faint: #5f7592;
  --color-text-inverse: #0a1420;

  --color-primary: #5b9bd9;
  --color-primary-hover: #82b3e3;
  --color-primary-active: #a8c9ec;
  --color-primary-highlight: #17324f;

  --color-accent: #ff8a3d;
  --color-accent-hover: #ffa564;
  --color-accent-active: #ffbd8c;
  --color-accent-highlight: #3a2517;

  --color-steel: #8fa1ba;

  --color-success: #63b787;
  --color-success-highlight: #1c3329;
  --color-warning: #d99a52;
  --color-warning-highlight: #3a2c1a;
  --color-error: #dd7690;
  --color-error-highlight: #3a2129;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.35);
  --shadow-md: 0 6px 20px oklch(0 0 0 / 0.4);
  --shadow-lg: 0 20px 48px oklch(0 0 0 / 0.55);
}

/* ============================================================
   About / Values / Principles
   ============================================================ */

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-16);
  align-items: start;
}

@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
}

.about-pillars {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-8);
}

@media (max-width: 560px) {
  .about-pillars { grid-template-columns: 1fr; }
}

.about-pillar {
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
}

.about-pillar .pillar-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 600;
}

.about-pillar h4 {
  margin-top: var(--space-2);
  font-size: var(--text-lg);
  font-weight: 650;
}

.about-pillar p {
  margin-top: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.about-fact-card {
  background: linear-gradient(160deg, var(--color-primary), var(--color-primary-active));
  color: var(--color-text-inverse);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
}

.about-fact-card h3 {
  color: white;
  font-size: var(--text-lg);
}

.about-fact-list {
  margin-top: var(--space-6);
  display: grid;
  gap: var(--space-4);
}

.about-fact-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-3);
  padding-block: var(--space-3);
  border-top: 1px solid oklch(1 0 0 / 0.15);
}

.about-fact-item:first-child { border-top: none; padding-top: 0; }

.about-fact-item .fact-label {
  font-size: var(--text-sm);
  opacity: 0.78;
}

.about-fact-item .fact-value {
  font-family: var(--font-mono);
  font-weight: 600;
  text-align: right;
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-10);
}

@media (max-width: 900px) {
  .principles-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .principles-grid { grid-template-columns: 1fr; }
}

.principle-card {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  text-align: center;
}

.principle-card .principle-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.principle-card p {
  margin-top: var(--space-2);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.5;
}

/* ============================================================
   Domain badges + spec chips (product matrix)
   ============================================================ */

.domain-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: var(--space-6);
}

.domain-badge.is-pv {
  background: var(--color-primary-highlight);
  color: var(--color-primary);
}

.domain-badge.is-bottle {
  background: var(--color-accent-highlight);
  color: var(--color-accent);
}

.spec-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.spec-chip {
  font-size: var(--text-xs);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--color-surface-offset);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}

.spec-chip.is-highlight {
  background: var(--color-accent-highlight);
  color: var(--color-accent);
  font-weight: 600;
}

/* ============================================================
   Layout Primitives
   ============================================================ */

.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.container--default {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

@media (min-width: 768px) {
  .container,
  .container--default {
    padding-inline: var(--space-8);
  }
}

section {
  padding-block: clamp(var(--space-16), 9vw, var(--space-32));
}

.section-tight {
  padding-block: clamp(var(--space-10), 6vw, var(--space-16));
}

/* ============================================================
   Typography
   ============================================================ */

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-weight: 500;
}

.eyebrow::before {
  content: '';
  width: 20px;
  height: 1px;
  background: currentColor;
  display: inline-block;
}

/* Brand signature — orange gradient rule, echoes SparksAI print materials */
.brand-rule {
  width: 64px;
  height: 4px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--color-accent), oklch(from var(--color-accent) l c h / 0.15));
  margin-bottom: var(--space-4);
}

.h-hero {
  font-size: var(--text-3xl);
  font-weight: 650;
  line-height: 1.08;
}

.h-section {
  font-size: var(--text-2xl);
  font-weight: 650;
  line-height: 1.12;
}

.h-sub {
  font-size: var(--text-lg);
  font-weight: 600;
}

.text-lede {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 56ch;
}

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

.mono {
  font-family: var(--font-mono);
}

/* ============================================================
   Buttons
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  white-space: nowrap;
  border: 1px solid transparent;
  min-height: 44px;
  transition:
    background var(--transition-interactive),
    color var(--transition-interactive),
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive);
}

.btn-primary {
  background: var(--color-accent);
  color: white;
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.btn-primary:active {
  background: var(--color-accent-active);
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border-color: oklch(from var(--color-text) l c h / 0.18);
}
.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  padding-inline: var(--space-2);
}
.btn-ghost:hover {
  color: var(--color-primary);
}

/* ============================================================
   Header / Nav
   ============================================================ */

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.08);
  transition:
    transform 0.3s var(--ease-out),
    box-shadow 0.3s var(--ease-out);
}
.header--hidden {
  transform: translateY(-100%);
}
.header--scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-base);
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.brand svg {
  width: 32px;
  height: 32px;
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.nav-links a {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 500;
}
.nav-links a:hover {
  color: var(--color-text);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
}
.icon-btn:hover {
  background: var(--color-surface-offset);
  color: var(--color-text);
}
.icon-btn svg {
  width: 18px;
  height: 18px;
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }
  .menu-toggle {
    display: inline-flex;
  }
}

@media (max-width: 420px) {
  .header-inner {
    gap: var(--space-3);
  }
  .brand {
    font-size: var(--text-sm);
    gap: var(--space-2);
  }
  .brand svg {
    width: 26px;
    height: 26px;
  }
  .nav-actions {
    gap: var(--space-2);
  }
  .nav-actions .btn {
    padding-inline: var(--space-3);
    font-size: var(--text-xs);
  }
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4) var(--space-6) var(--space-6);
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.08);
  background: var(--color-bg);
}
.mobile-menu.is-open {
  display: flex;
}
.mobile-menu a {
  color: var(--color-text);
  font-size: var(--text-base);
  padding: var(--space-3) 0;
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.06);
}
.mobile-menu .btn {
  margin-top: var(--space-3);
  width: 100%;
}

/* ============================================================
   Hero
   ============================================================ */

.hero {
  position: relative;
  padding-block: clamp(var(--space-16), 10vw, var(--space-24)) clamp(var(--space-12), 6vw, var(--space-16));
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-12);
  align-items: center;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
}

.hero-copy p.text-lede {
  margin-top: var(--space-5);
}

.hero-stats-inline {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  margin-top: var(--space-10);
  padding-top: var(--space-8);
  border-top: 1px solid oklch(from var(--color-text) l c h / 0.1);
}

.hero-stat-num {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
}
.hero-stat-num span {
  color: var(--color-primary);
}
.hero-stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-8);
  flex-wrap: wrap;
}

.hero-media {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4 / 3.2;
  box-shadow: var(--shadow-lg);
  border: 1px solid oklch(from var(--color-text) l c h / 0.08);
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-media-badge {
  position: absolute;
  bottom: var(--space-5);
  left: var(--space-5);
  right: var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  background: oklch(0.1 0.02 240 / 0.55);
  backdrop-filter: blur(10px);
  border: 1px solid oklch(1 0 0 / 0.12);
  color: #fff;
}
.hero-media-badge .label {
  font-size: var(--text-xs);
  color: oklch(1 0 0 / 0.7);
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}
.hero-media-badge .value {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: 700;
  color: #6fd4f5;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.5;
  mask-image: linear-gradient(to bottom, black, transparent 85%);
}

/* ============================================================
   Trust / Logos strip
   ============================================================ */

.trust-strip {
  padding-block: var(--space-8);
  border-top: 1px solid oklch(from var(--color-text) l c h / 0.08);
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.08);
}
.trust-strip-inner {
  display: flex;
  align-items: center;
  gap: var(--space-10);
  flex-wrap: wrap;
  justify-content: space-between;
}
.trust-strip-label {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  white-space: nowrap;
}
.trust-logos {
  display: flex;
  gap: var(--space-8);
  flex-wrap: wrap;
  align-items: center;
}
.trust-logos span {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-base);
  color: var(--color-text-faint);
  letter-spacing: 0.02em;
}

/* ============================================================
   Metrics / Core data section
   ============================================================ */

.metrics-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--space-8);
  margin-bottom: var(--space-16);
  flex-wrap: wrap;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-divider);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

@media (max-width: 900px) {
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.metric-card {
  background: var(--color-surface);
  padding: var(--space-8) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.metric-value {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
}
.metric-value .unit {
  font-size: var(--text-lg);
  color: var(--color-primary);
  font-weight: 600;
}
.metric-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}
.metric-detail {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* Data highlight banner */
.data-banner {
  margin-top: var(--space-10);
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-10);
  align-items: center;
  padding: var(--space-10);
  border-radius: var(--radius-xl);
  background: var(--color-surface-offset);
  border: 1px solid var(--color-divider);
}
@media (max-width: 900px) {
  .data-banner {
    grid-template-columns: 1fr;
  }
}
.data-banner-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.data-banner-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}
.data-banner-item svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}
.data-banner-item h4 {
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-1);
}
.data-banner-item p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.data-banner-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: var(--shadow-md);
}
.data-banner-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============================================================
   Products / Services
   ============================================================ */

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-16);
}
.section-head .text-lede {
  margin-top: var(--space-4);
}

.solutions-list {
  display: flex;
  flex-direction: column;
}

.solution-row {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-12);
  align-items: center;
  padding-block: var(--space-16);
  border-top: 1px solid var(--color-divider);
}
.solution-row:last-child {
  border-bottom: 1px solid var(--color-divider);
}
.solution-row:nth-child(even) .solution-media {
  order: -1;
}

@media (max-width: 900px) {
  .solution-row,
  .solution-row:nth-child(even) {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  .solution-row:nth-child(even) .solution-media {
    order: 0;
  }
}

.solution-index {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  display: block;
}

.solution-copy h3 {
  font-size: var(--text-xl);
  font-weight: 650;
  margin-bottom: var(--space-4);
}
.solution-copy p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.solution-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.tag {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.solution-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-divider);
}
.solution-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============================================================
   Process
   ============================================================ */

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}
@media (max-width: 900px) {
  .process-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
}
.process-step {
  position: relative;
  padding-top: var(--space-8);
  border-top: 2px solid var(--color-primary);
}
.process-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-bottom: var(--space-3);
}
.process-step h4 {
  font-size: var(--text-base);
  font-weight: 650;
  margin-bottom: var(--space-2);
}
.process-step p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ============================================================
   Contact / CTA
   ============================================================ */

.cta-band {
  background: var(--color-text);
  color: var(--color-text-inverse);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-10), 6vw, var(--space-16));
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-10);
  align-items: center;
  position: relative;
  overflow: hidden;
}
[data-theme='dark'] .cta-band {
  background: var(--color-surface-offset);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
@media (max-width: 900px) {
  .cta-band {
    grid-template-columns: 1fr;
    text-align: left;
  }
}
.cta-band h2 {
  font-size: var(--text-2xl);
  font-family: var(--font-display);
  font-weight: 650;
  color: inherit;
  margin-bottom: var(--space-4);
}
.cta-band p {
  color: oklch(from var(--color-text-inverse) l c h / 0.72);
  font-size: var(--text-base);
}
[data-theme='dark'] .cta-band p {
  color: var(--color-text-muted);
}
.cta-band .btn-primary {
  background: var(--color-primary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  margin-top: var(--space-20);
}
@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.contact-info-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-divider);
}
.contact-info-item:last-child {
  border-bottom: none;
}
.contact-info-item svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}
.contact-info-item h4 {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: var(--space-1);
}
.contact-info-item p,
.contact-info-item a {
  font-size: var(--text-base);
  color: var(--color-text);
  font-weight: 500;
}

/* Form */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}
.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.form-field.full {
  grid-column: 1 / -1;
}
.form-field label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
}
.form-field input,
.form-field textarea,
.form-field select {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  font-size: var(--text-base);
  color: var(--color-text);
  min-height: 44px;
}
.form-field textarea {
  min-height: 120px;
  resize: vertical;
}
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-highlight);
}
@media (max-width: 640px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
  .form-field.full {
    grid-column: 1;
  }
}

.form-note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-3);
}

.form-success {
  display: none;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--color-success-highlight);
  color: var(--color-success);
  font-size: var(--text-sm);
  font-weight: 500;
}
.form-success.is-visible {
  display: flex;
}
.form-success svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ============================================================
   Footer
   ============================================================ */

.footer {
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-12);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  font-family: var(--font-display);
  font-weight: 700;
}
.footer-brand svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}
.footer-links {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
}
.footer-links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.footer-links a:hover {
  color: var(--color-primary);
}
.footer-copy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ============================================================
   Scroll reveal
   ============================================================ */

.reveal {
  opacity: 1;
}
@supports (animation-timeline: scroll()) {
  .reveal {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 40%;
  }
}
@keyframes reveal-fade {
  to {
    opacity: 1;
  }
}

/* Theme toggle icon swap handled via JS */