/* ==========================================================================
   BMW Corporate Design System - 迈泽会展 MAIZE EVENT
   ========================================================================== */

/* CSS Variables - BMW Design Tokens */
:root {
  /* Brand & Accent */
  --primary: #1c69d4;
  --primary-active: #0653b6;
  --primary-disabled: #d6d6d6;

  /* Surface */
  --canvas: #ffffff;
  --surface-soft: #f7f7f7;
  --surface-card: #fafafa;
  --surface-strong: #ebebeb;
  --surface-dark: #1a2129;
  --surface-dark-elevated: #262e38;

  /* Hairlines */
  --hairline: #e6e6e6;
  --hairline-strong: #cccccc;

  /* Text */
  --ink: #262626;
  --body: #3c3c3c;
  --body-strong: #1a1a1a;
  --muted: #6b6b6b;
  --muted-soft: #9a9a9a;
  --on-primary: #ffffff;
  --on-dark: #ffffff;
  --on-dark-soft: #bbbbbb;

  /* Typography */
  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing */
  --xxs: 4px;
  --xs: 8px;
  --sm: 12px;
  --md: 16px;
  --lg: 24px;
  --xl: 32px;
  --xxl: 48px;
  --section: 80px;

  /* Container */
  --container-max: 1440px;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.55;
  letter-spacing: 0;
  color: var(--body);
  background-color: var(--canvas);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0;
  color: var(--ink);
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

/* ==========================================================================
   Top Navigation
   ========================================================================== */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
  background-color: var(--canvas);
  border-bottom: 1px solid var(--hairline);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  height: 100%;
  padding: 0 var(--lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--xl);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--sm);
}

.nav-logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--primary);
  color: var(--on-primary);
  font-size: 20px;
  font-weight: 700;
  border-radius: 50%;
}

.nav-logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.5px;
}

.nav-menu {
  display: flex;
  gap: var(--xl);
  flex: 1;
  margin-left: var(--xxl);
}

.nav-menu a {
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.3px;
  color: var(--ink);
  transition: color 0.15s ease;
}

.nav-menu a:hover {
  color: var(--primary);
}

.nav-btn {
  height: 40px;
  padding: 0 20px;
  font-size: 13px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 32px;
  font-family: var(--font-family);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.5px;
  line-height: 1.0;
  border: none;
  border-radius: 0;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--on-primary);
}

.btn-primary:hover {
  background-color: var(--primary-active);
}

.btn-secondary {
  background-color: var(--canvas);
  color: var(--ink);
  border: 1px solid var(--hairline-strong);
}

.btn-secondary:hover {
  border-color: var(--ink);
}

.btn-secondary-on-dark {
  background-color: transparent;
  color: var(--on-dark);
  border: 1px solid var(--on-dark);
}

.btn-secondary-on-dark:hover {
  background-color: var(--on-dark);
  color: var(--surface-dark);
}

/* ==========================================================================
   Hero Band (Dark)
   ========================================================================== */
.hero-band {
  background-color: var(--surface-dark);
  color: var(--on-dark);
  padding: var(--section) 0;
}

.hero-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--lg);
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--xxxl);
  align-items: center;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: var(--xl);
}

.hero-title {
  font-size: 64px;
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: 0;
  color: var(--on-dark);
  margin-bottom: var(--xl);
}

.hero-tagline {
  font-size: 18px;
  font-weight: 300;
  line-height: 1.55;
  color: var(--on-dark-soft);
  margin-bottom: var(--xl);
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: var(--md);
  flex-wrap: wrap;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--xl) var(--lg);
  padding-left: var(--xl);
  border-left: 1px solid var(--surface-dark-elevated);
}

.hero-meta-item {
  display: flex;
  flex-direction: column;
  gap: var(--xs);
}

.meta-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--on-dark-soft);
}

.meta-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--on-dark);
}

.meta-value sup {
  font-size: 14px;
  margin-left: 1px;
}

/* ==========================================================================
   Trusted By Strip
   ========================================================================== */
.trusted-strip {
  background-color: var(--surface-soft);
  padding: var(--xl) 0;
}

.trusted-strip .container {
  display: flex;
  flex-direction: column;
  gap: var(--md);
}

.trusted-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
}

.trusted-logos {
  display: flex;
  flex-wrap: wrap;
  gap: var(--lg) var(--xl);
  align-items: center;
}

.trusted-logo-img {
  height: 64px;
  width: auto;
  max-width: 220px;
  filter: grayscale(1) opacity(0.7);
  transition: filter 0.25s ease, transform 0.25s ease;
  cursor: default;
}

.trusted-logo-img:hover {
  filter: grayscale(0) opacity(1);
  transform: translateY(-3px);
}

/* ==========================================================================
   Section Base
   ========================================================================== */
.section {
  padding: var(--section) 0;
}

.section-light {
  background-color: var(--canvas);
}

.section-band {
  background-color: var(--surface-soft);
}

.section-label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: var(--md);
}

.section-title {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0;
  color: var(--ink);
  margin-bottom: var(--xxl);
}

.section-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--xxxl);
  margin-bottom: var(--xxl);
  align-items: end;
}

.section-intro {
  font-size: 16px;
  font-weight: 300;
  line-height: 1.55;
  color: var(--body);
  max-width: 480px;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--xxxl);
  margin-bottom: var(--xxxl);
  align-items: start;
}

.about-text p {
  font-size: 16px;
  font-weight: 300;
  line-height: 1.55;
  color: var(--body);
  margin-bottom: var(--md);
}

.about-text p:last-child {
  margin-bottom: 0;
}

/* Values */
.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--hairline);
  border-left: 1px solid var(--hairline);
}

.value-card {
  padding: var(--xl);
  border-right: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}

.value-num {
  display: block;
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--md);
  line-height: 1.0;
}

.value-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: var(--sm);
}

.value-desc {
  font-size: 14px;
  font-weight: 300;
  line-height: 1.55;
  color: var(--body);
}

/* ==========================================================================
   By The Numbers
   ========================================================================== */
.numbers-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}

.number-cell {
  padding: var(--xl) var(--md);
  display: flex;
  flex-direction: column;
  gap: var(--xs);
  border-right: 1px solid var(--hairline);
}

.number-cell:last-child {
  border-right: none;
}

.number-value {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.0;
  color: var(--ink);
}

.number-value sup {
  font-size: 16px;
  margin-left: 1px;
}

.number-label {
  font-size: 13px;
  font-weight: 300;
  color: var(--muted);
  line-height: 1.4;
}

/* ==========================================================================
   Services Grid (6-up in 2 rows of 3)
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--xl) var(--lg);
}

.service-card {
  background-color: var(--canvas);
  display: flex;
  flex-direction: column;
}

.service-photo {
  width: 100%;
  height: 200px;
  background-color: var(--surface-card);
  background-size: cover;
  background-position: center;
}

.service-1 { background-image: url('../img/service-1.jpg'); }
.service-2 { background-image: url('../img/service-2.jpg'); }
.service-3 { background-image: url('../img/service-3.jpg'); }
.service-4 { background-image: url('../img/service-4.jpg'); }

.service-title {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
  margin-top: var(--lg);
  margin-bottom: var(--sm);
}

.service-desc {
  font-size: 14px;
  font-weight: 300;
  line-height: 1.55;
  color: var(--body);
  margin-bottom: var(--md);
}

.service-list {
  margin-bottom: var(--md);
}

.service-list li {
  font-size: 13px;
  font-weight: 300;
  color: var(--muted);
  padding: var(--xs) 0;
  border-bottom: 1px solid var(--hairline);
}

.service-list li:last-child {
  border-bottom: none;
}

.service-list li::before {
  content: "—";
  margin-right: var(--xs);
  color: var(--primary);
}

.text-link {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--ink);
  margin-top: auto;
  transition: color 0.15s ease;
  display: inline-block;
}

.text-link:hover {
  color: var(--primary);
}

/* ==========================================================================
   Process Grid
   ========================================================================== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  border-top: 1px solid var(--hairline);
  border-left: 1px solid var(--hairline);
}

.process-step {
  padding: var(--xl);
  border-right: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  position: relative;
}

.process-num {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: var(--md);
}

.process-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: var(--sm);
}

.process-desc {
  font-size: 14px;
  font-weight: 300;
  line-height: 1.55;
  color: var(--body);
}

/* ==========================================================================
   Cases Grid - Editorial Magazine Layout
   ========================================================================== */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: 260px 260px 260px;
  gap: var(--md);
}

.case-card {
  position: relative;
  overflow: hidden;
  background-color: var(--surface-card);
}

.case-large {
  grid-column: span 2;
  grid-row: span 2;
}

.case-wide {
  grid-column: span 2;
}

.case-photo {
  width: 100%;
  height: 100%;
  background-color: var(--surface-card);
  background-size: cover;
  background-position: center;
  transition: transform 0.4s ease;
}

.case-card:hover .case-photo {
  transform: scale(1.04);
}

.case-1 { background-image: url('../img/case-1.jpg'); }
.case-2 { background-image: url('../img/case-2.jpg'); }
.case-3 { background-image: url('../img/case-3.jpg'); }
.case-4 { background-image: url('../img/case-4.jpg'); }
.case-5 { background-image: url('../img/case-5.jpg'); }

.case-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--lg);
  background: linear-gradient(to top, rgba(26, 33, 41, 0.92), transparent);
  color: var(--on-dark);
}

.case-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--primary);
  background-color: rgba(255,255,255,0.95);
  padding: 4px 10px;
  margin-right: var(--xs);
}

.case-year {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--on-dark-soft);
}

.case-title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--on-dark);
  margin-top: var(--sm);
  margin-bottom: var(--xs);
}

.case-large .case-title {
  font-size: 28px;
}

.case-meta {
  font-size: 12px;
  font-weight: 300;
  color: var(--on-dark-soft);
}

/* ==========================================================================
   Case Feature Detail Block
   ========================================================================== */
.case-feature {
  margin-top: var(--xxl);
  padding: var(--xxl);
  background-color: var(--surface-card);
  border: 1px solid var(--hairline);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--lg);
}

.case-feature-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: var(--md);
}

.case-feature-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: var(--md);
}

.case-feature-text {
  font-size: 16px;
  font-weight: 300;
  line-height: 1.7;
  color: var(--body);
  margin-bottom: var(--xl);
  max-width: 900px;
}

.case-feature-meta {
  display: flex;
  flex-direction: column;
  gap: var(--md);
  padding-top: var(--lg);
  border-top: 1px solid var(--hairline);
  margin-bottom: var(--xl);
}

.meta-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--lg);
  align-items: start;
}

.meta-key {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 2px;
}

.meta-val {
  font-size: 15px;
  font-weight: 300;
  line-height: 1.6;
  color: var(--ink);
}

.case-feature-btn {
  display: inline-flex;
}

/* ==========================================================================
   Partners Grid
   ========================================================================== */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--hairline);
  border-left: 1px solid var(--hairline);
}

.partner-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--xxl) var(--lg);
  border-right: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  transition: background-color 0.2s ease;
  text-align: center;
  min-height: 220px;
  justify-content: center;
}

.partner-card:hover {
  background-color: var(--surface-card);
}

.partner-logo {
  height: 88px;
  width: auto;
  max-width: 220px;
  margin-bottom: var(--lg);
  filter: grayscale(0.3);
  transition: filter 0.25s ease, transform 0.25s ease;
}

.partner-card:hover .partner-logo {
  filter: grayscale(0);
  transform: scale(1.05);
}

.partner-meta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--xs);
}

.partner-tag {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: var(--xs);
}

.partner-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 2px;
}

.partner-note {
  font-size: 13px;
  font-weight: 300;
  color: var(--muted);
}

/* ==========================================================================
   Team Grid
   ========================================================================== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--lg);
}

.team-card {
  background-color: var(--canvas);
}

.team-photo {
  width: 100%;
  height: 320px;
  background-color: var(--surface-card);
  background-size: cover;
  background-position: center top;
  filter: grayscale(0.3);
}

.team-1 { background-image: url('../img/team-1.jpg'); }
.team-2 { background-image: url('../img/team-2.jpg'); }
.team-3 { background-image: url('../img/team-3.jpg'); }
.team-4 { background-image: url('../img/team-4.jpg'); }

.team-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  margin-top: var(--lg);
  margin-bottom: var(--xs);
}

.team-title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: var(--sm);
}

.team-bio {
  font-size: 14px;
  font-weight: 300;
  line-height: 1.55;
  color: var(--body);
}

/* ==========================================================================
   Insights Grid
   ========================================================================== */
.insights-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: var(--lg);
}

.insight-card {
  background-color: var(--canvas);
  display: flex;
  flex-direction: column;
}

.insight-large {
  grid-row: span 2;
}

.insight-photo {
  width: 100%;
  height: 200px;
  background-color: var(--surface-card);
  background-size: cover;
  background-position: center;
}

.insight-large .insight-photo {
  height: 360px;
}

.article-1 { background-image: url('../img/article-1.jpg'); }
.article-2 { background-image: url('../img/article-2.jpg'); }
.article-3 { background-image: url('../img/article-3.jpg'); }

.insight-content {
  padding: var(--lg) 0;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.insight-meta {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: var(--sm);
}

.insight-title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
  margin-bottom: var(--sm);
}

.insight-large .insight-title {
  font-size: 24px;
}

.insight-excerpt {
  font-size: 14px;
  font-weight: 300;
  line-height: 1.55;
  color: var(--body);
  margin-bottom: var(--md);
  flex: 1;
}

/* ==========================================================================
   Testimonials
   ========================================================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--xl);
}

.testimonial-card {
  background-color: var(--canvas);
  padding: var(--xl);
  margin: 0;
  border: 1px solid var(--hairline);
  position: relative;
}

.testimonial-card::before {
  content: """;
  position: absolute;
  top: var(--lg);
  left: var(--lg);
  font-size: 60px;
  font-weight: 700;
  line-height: 1.0;
  color: var(--primary);
  opacity: 0.2;
  font-family: Georgia, serif;
}

.testimonial-text {
  font-size: 16px;
  font-weight: 300;
  line-height: 1.7;
  color: var(--ink);
  margin-bottom: var(--xl);
  padding-top: var(--xl);
}

.testimonial-author {
  padding-top: var(--md);
  border-top: 1px solid var(--hairline);
}

.testimonial-author strong {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: var(--xs);
}

.testimonial-author span {
  font-size: 13px;
  font-weight: 300;
  color: var(--muted);
}

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--hairline);
  padding: var(--lg) 0;
}

.faq-question {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--md);
  padding-right: var(--md);
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: "+";
  font-size: 24px;
  font-weight: 300;
  color: var(--primary);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-question::after {
  content: "−";
}

.faq-answer {
  padding-top: var(--md);
  margin-top: var(--md);
  border-top: 1px solid var(--hairline);
}

.faq-answer p {
  font-size: 15px;
  font-weight: 300;
  line-height: 1.7;
  color: var(--body);
}

/* ==========================================================================
   CTA Band (Dark)
   ========================================================================== */
.cta-band {
  background-color: var(--surface-dark);
  color: var(--on-dark);
  padding: var(--section) 0;
  text-align: center;
}

.cta-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: var(--md);
}

.cta-title {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.15;
  color: var(--on-dark);
  margin-bottom: var(--md);
}

.cta-text {
  font-size: 16px;
  font-weight: 300;
  color: var(--on-dark-soft);
  margin-bottom: var(--xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  gap: var(--md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--xxl);
}

.cta-contact {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--xl);
  padding-top: var(--xl);
  border-top: 1px solid var(--surface-dark-elevated);
  max-width: 1100px;
  margin: 0 auto;
  text-align: left;
}

.cta-contact-item {
  display: flex;
  flex-direction: column;
  gap: var(--xs);
}

.cta-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--on-dark-soft);
}

.cta-value {
  font-size: 15px;
  font-weight: 700;
  color: var(--on-dark);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background-color: var(--surface-soft);
  padding: var(--xxl) 0 var(--lg);
}

.footer-top {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--xxl);
  padding-bottom: var(--xl);
  border-bottom: 1px solid var(--hairline-strong);
}

.footer-brand .nav-logo {
  margin-bottom: var(--md);
}

.footer-tagline {
  font-size: 14px;
  font-weight: 300;
  line-height: 1.6;
  color: var(--muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--xl);
  margin-bottom: 0;
}

.footer-heading {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: var(--md);
}

.footer-links li {
  margin-bottom: var(--xs);
}

.footer-links a {
  font-size: 14px;
  font-weight: 300;
  color: var(--muted);
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: var(--ink);
}

.footer-bottom {
  padding-top: var(--lg);
}

.footer-bottom p {
  font-size: 13px;
  font-weight: 300;
  color: var(--muted);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1280px) {
  .numbers-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .number-cell:nth-child(3) {
    border-right: none;
  }
  .number-cell:nth-child(4),
  .number-cell:nth-child(5),
  .number-cell:nth-child(6) {
    border-top: 1px solid var(--hairline);
  }
}

@media (max-width: 1024px) {
  .nav-menu {
    gap: var(--lg);
    margin-left: var(--lg);
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: var(--xxl);
  }

  .hero-meta {
    padding-left: 0;
    border-left: none;
    padding-top: var(--lg);
    border-top: 1px solid var(--surface-dark-elevated);
  }

  .hero-title {
    font-size: 48px;
  }

  .section-title {
    font-size: 36px;
  }

  .section-header {
    grid-template-columns: 1fr;
    gap: var(--md);
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--lg);
  }

  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cases-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: auto;
  }

  .case-large,
  .case-wide {
    grid-column: span 2;
    grid-row: span 1;
  }

  .case-card {
    height: 260px;
  }

  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .partners-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .insights-grid {
    grid-template-columns: 1fr 1fr;
  }

  .insight-large {
    grid-column: span 2;
    grid-row: span 1;
  }

  .insight-large .insight-photo {
    height: 240px;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .cta-contact {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--xl);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

  .nav-btn {
    display: none;
  }

  .hero-title {
    font-size: 36px;
  }

  .section-title {
    font-size: 28px;
  }

  .cta-title {
    font-size: 28px;
  }

  .hero-actions,
  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .trusted-strip .container {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--md);
  }

  .values-grid {
    grid-template-columns: 1fr;
  }

  .numbers-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .number-cell:nth-child(odd) {
    border-right: 1px solid var(--hairline);
  }

  .number-cell:nth-child(even) {
    border-right: none;
  }

  .number-cell:nth-child(3),
  .number-cell:nth-child(4) {
    border-top: 1px solid var(--hairline);
  }

  .number-cell:nth-child(5),
  .number-cell:nth-child(6) {
    border-top: 1px solid var(--hairline);
  }

  .services-grid,
  .process-grid,
  .cases-grid {
    grid-template-columns: 1fr;
  }

  .case-large,
  .case-wide {
    grid-column: span 1;
  }

  .team-grid,
  .insights-grid {
    grid-template-columns: 1fr;
  }

  .partners-grid {
    grid-template-columns: 1fr;
  }

  .insight-large {
    grid-column: span 1;
  }

  .cta-contact,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    --section: 56px;
  }

  .container {
    padding: 0 var(--md);
  }

  .hero-title {
    font-size: 32px;
  }

  .section-title {
    font-size: 24px;
  }

  .number-value {
    font-size: 28px;
  }

  .case-feature {
    padding: var(--lg);
  }

  .case-feature-title {
    font-size: 24px;
  }

  .meta-row {
    grid-template-columns: 1fr;
    gap: var(--xs);
  }
}