/* ============================================================
   Longsday International Freight Forwarding — Main Stylesheet
   Brand: Navy #162d59 / Steel #46659b / Cream #f9f7e8
   ============================================================ */

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

:root {
  --navy: #162d59;
  --navy-dark: #111f3d;
  --navy-light: #1e3d73;
  --steel: #46659b;
  --steel-light: #7498ba;
  --steel-muted: #97aab1;
  --cream: #f9f7e8;
  --cream-dark: #efe9d0;
  --cream-light: #fdfbf4;
  --near-black: #1c1b19;
  --white: #ffffff;
  --gray-100: #f5f5f5;
  --gray-200: #e5e5e5;
  --gray-500: #888888;
  --gray-700: #555555;
  --radius: 8px;
  --radius-lg: 16px;
  --shadow: 0 2px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --max-width: 1200px;
  --header-h: 72px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--near-black);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-wrap: pretty;
}

/* --- Typography --- */
h1, h2, h3, h4 { line-height: 1.25; font-weight: 700; color: var(--navy); }
h1 { font-size: clamp(2.2rem, 4vw, 3.4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: -0.01em; }
h3 { font-size: 1.25rem; }
p { margin-bottom: 1rem; color: var(--gray-700); }

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--steel);
  margin-bottom: 0.5rem;
}

.section-title {
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--gray-500);
  max-width: 600px;
  margin-bottom: 3rem;
}

/* --- Language Switcher --- */
.lang-switch {
  display: inline-flex;
  border: 1px solid var(--gray-200);
  border-radius: 20px;
  overflow: hidden;
  font-size: 0.8rem;
  font-weight: 500;
}
.lang-switch button {
  padding: 4px 14px;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--gray-500);
  transition: all 0.2s;
}
.lang-switch button.active {
  background: var(--navy);
  color: var(--white);
}
.lang-switch button:hover:not(.active) {
  color: var(--navy);
}

/* Bilingual content visibility */
[data-lang] { display: none; }
:root[lang="zh"] [data-lang="zh"] { display: revert; }
:root[lang="en"] [data-lang="en"] { display: revert; }

/* Map language switching */
:root[lang="zh"] #map-google { display: none; }
:root[lang="en"] #map-baidu { display: none; }

/* --- Navigation --- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--header-h);
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  display: flex; align-items: center;
}

.nav-inner {
  width: 100%; max-width: var(--max-width);
  margin: 0 auto; padding: 0 2rem;
  display: flex; align-items: center; justify-content: space-between;
}

.nav-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; font-weight: 700; font-size: 1.2rem;
  color: var(--navy);
}
.nav-logo img { height: 36px; width: auto; }

.nav-links {
  display: flex; align-items: center; gap: 2rem;
  list-style: none;
}
.nav-links a {
  text-decoration: none; color: var(--gray-700);
  font-size: 0.9rem; font-weight: 500;
  transition: color 0.2s; position: relative;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--navy);
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 2px; background: var(--steel);
  transition: width 0.2s;
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.nav-right { display: flex; align-items: center; gap: 1rem; }

.nav-cta {
  padding: 8px 20px;
  background: var(--navy);
  color: var(--white) !important;
  border-radius: 20px;
  font-size: 0.85rem; font-weight: 600;
  text-decoration: none;
  transition: background 0.2s;
}
.nav-cta:hover { background: var(--navy-light); }

.menu-toggle {
  display: none; background: none; border: none;
  font-size: 1.5rem; cursor: pointer; color: var(--navy);
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  background: var(--navy-dark);
  padding: calc(var(--header-h) + 3rem) 2rem 4rem;
  position: relative; overflow: hidden;
}

.hero-inner {
  width: 100%; max-width: var(--max-width);
  margin: 0 auto; position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 4rem; align-items: center;
}

.hero-content { max-width: 560px; }

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(70,101,155,0.1);
  color: var(--steel);
  border-radius: 20px;
  font-size: 0.85rem; font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero h1 {
  margin-bottom: 1.25rem;
  color: var(--navy-dark);
}

.hero p {
  font-size: 1.15rem;
  color: var(--gray-500);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex; gap: 1rem; flex-wrap: wrap;
}

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px;
  border: none; border-radius: 28px;
  font-size: 0.95rem; font-weight: 600;
  cursor: pointer; text-decoration: none;
  transition: all 0.25s;
}

.btn-primary {
  background: var(--navy);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(22,45,89,0.3);
}
.btn-primary:hover {
  background: var(--navy-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(22,45,89,0.4);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 2px solid var(--navy);
}
.btn-outline:hover {
  background: var(--navy);
  color: var(--white);
}

.hero-visual {
  display: flex; justify-content: center; align-items: center;
}

.hero-visual img {
  max-width: 100%; height: auto;
  filter: drop-shadow(0 20px 40px rgba(22,45,89,0.15));
}

.hero-stats {
  display: flex; gap: 3rem; margin-top: 2.5rem;
  padding-top: 2rem; border-top: 1px solid rgba(0,0,0,0.06);
}

.hero-stat h4 {
  font-size: 1.8rem; color: var(--navy); margin-bottom: 0.15rem;
}
.hero-stat span {
  font-size: 0.85rem; color: var(--gray-500);
}

/* --- Sections --- */
.section {
  padding: 6rem 2rem;
}

.section-alt {
  background: var(--cream-light);
}

.section-inner {
  width: 100%; max-width: var(--max-width);
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

/* --- Services Grid --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: var(--white);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all 0.3s;
  cursor: default;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.service-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: rgba(22,45,89,0.06);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
  color: var(--steel);
}

.service-card h3 {
  margin-bottom: 0.5rem;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--gray-500);
  margin-bottom: 0;
}

/* --- Why Us --- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.why-item {
  text-align: center;
  padding: 2rem 1.5rem;
}

.why-num {
  display: inline-flex;
  align-items: center; justify-content: center;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  font-size: 1.5rem; font-weight: 700;
  margin-bottom: 1.25rem;
}

.why-item h3 { margin-bottom: 0.5rem; }
.why-item p { font-size: 0.9rem; color: var(--gray-500); }

/* --- CTA Banner --- */
.cta-banner {
  background: var(--navy);
  padding: 5rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(70,101,155,0.3) 0%, transparent 60%);
}

.cta-banner-inner {
  position: relative; z-index: 1;
  max-width: 700px; margin: 0 auto;
}

.cta-banner h2 { color: var(--white); margin-bottom: 1rem; }
.cta-banner p { color: rgba(255,255,255,0.75); margin-bottom: 2rem; font-size: 1.05rem; }

.cta-banner .btn-primary {
  background: var(--white);
  color: var(--navy);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}
.cta-banner .btn-primary:hover {
  box-shadow: 0 6px 28px rgba(0,0,0,0.35);
}

/* --- Footer --- */
.footer {
  background: var(--navy-dark);
  color: rgba(255,255,255,0.65);
  padding: 4rem 2rem 2rem;
}

.footer-inner {
  max-width: var(--max-width); margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
}

.footer h4 {
  color: var(--white);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.footer a {
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  font-size: 0.88rem;
  display: block;
  margin-bottom: 0.6rem;
  transition: color 0.2s;
}
.footer a:hover { color: var(--white); }

.footer-brand p {
  color: rgba(255,255,255,0.5);
  font-size: 0.88rem;
  margin-top: 0.75rem;
}

.footer-bottom {
  max-width: var(--max-width); margin: 0 auto;
  padding-top: 2rem; margin-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex; justify-content: space-between;
  font-size: 0.8rem; color: rgba(255,255,255,0.35);
}

/* --- Page Header (inner pages) --- */
.page-header {
  padding: calc(var(--header-h) + 4rem) 2rem 3rem;
  background: linear-gradient(135deg, var(--cream) 0%, var(--cream-light) 100%);
  text-align: center;
}

.page-header h1 { margin-bottom: 0.75rem; }
.page-header p { color: var(--gray-500); font-size: 1.05rem; max-width: 500px; margin: 0 auto; }

/* --- Services Page --- */
.service-detail {
  padding: 5rem 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.service-detail:nth-child(even) {
  direction: rtl;
}
.service-detail:nth-child(even) .service-detail-content {
  direction: ltr;
}

.service-detail-icon {
  width: 64px; height: 64px;
  border-radius: 18px;
  background: rgba(22,45,89,0.06);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 1.5rem;
  color: var(--steel);
}

.service-detail h2 { margin-bottom: 0.75rem; }

.service-features {
  list-style: none;
  margin-top: 1.5rem;
}
.service-features li {
  padding: 0.35rem 0;
  font-size: 0.92rem;
  color: var(--gray-700);
}
.service-features li::before {
  content: '✓ ';
  color: var(--steel);
  font-weight: 700;
}

.service-detail-visual {
  background: var(--cream-light);
  border-radius: var(--radius-lg);
  min-height: 280px;
  display: flex; align-items: center; justify-content: center;
  color: var(--steel-muted);
  font-size: 0.9rem;
  border: 2px dashed rgba(0,0,0,0.06);
}

/* --- About Page --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-image {
  background: var(--cream-light);
  border-radius: var(--radius-lg);
  min-height: 360px;
  display: flex; align-items: center; justify-content: center;
  border: 2px dashed rgba(0,0,0,0.06);
}

.about-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

.value-card {
  background: var(--white);
  border: 1px solid rgba(0,0,0,0.05);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.value-card h4 { font-size: 1rem; margin-bottom: 0.35rem; }
.value-card p { font-size: 0.85rem; color: var(--gray-500); margin: 0; }

/* --- Contact Page --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info-item {
  display: flex; gap: 1rem; margin-bottom: 2rem;
}

.contact-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(22,45,89,0.06);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  color: var(--steel);
}

.contact-info-item h4 { font-size: 0.95rem; margin-bottom: 0.2rem; }
.contact-info-item p { font-size: 0.9rem; color: var(--gray-500); margin: 0; }

.contact-form {
  background: var(--white);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid rgba(0,0,0,0.04);
}

.form-group { margin-bottom: 1.25rem; }

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--navy);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  font-size: 0.92rem;
  font-family: inherit;
  color: var(--near-black);
  background: var(--cream-light);
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--steel);
  box-shadow: 0 0 0 3px rgba(70,101,155,0.1);
}

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

/* --- Tools Page --- */
.tools-tabs {
  display: flex; gap: 0.5rem; margin-bottom: 2rem;
  justify-content: center;
}

.tool-tab {
  padding: 10px 28px;
  border: 1px solid var(--gray-200);
  border-radius: 24px;
  background: var(--white);
  cursor: pointer;
  font-size: 0.9rem; font-weight: 500;
  color: var(--gray-700);
  transition: all 0.2s;
}

.tool-tab.active {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

.tool-tab:hover:not(.active) {
  border-color: var(--steel);
  color: var(--navy);
}

.tool-panel { display: none; }
.tool-panel.active { display: block; }

.tool-card {
  background: var(--white);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  max-width: 800px;
  margin: 0 auto;
}

.tool-card h3 { margin-bottom: 0.5rem; }

.search-box {
  display: flex; gap: 0.75rem;
  margin: 1.5rem 0;
}

.search-box input {
  flex: 1;
  padding: 12px 18px;
  border: 2px solid var(--gray-200);
  border-radius: 28px;
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--cream-light);
}

.search-box input:focus {
  outline: none;
  border-color: var(--steel);
}

.search-box button {
  padding: 12px 28px;
  border: none; border-radius: 28px;
  background: var(--navy);
  color: var(--white);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.2s;
}

.search-box button:hover { background: var(--navy-light); }

.tool-result {
  margin-top: 1.5rem;
  padding: 1.5rem;
  background: var(--cream-light);
  border-radius: var(--radius);
  border: 1px solid rgba(0,0,0,0.04);
  display: none;
}

.tool-result.visible { display: block; }

.tool-result-placeholder {
  text-align: center;
  padding: 2rem;
  color: var(--gray-500);
  font-size: 0.9rem;
}

.tool-note {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--gray-500);
  text-align: center;
}

/* --- HS Search Results --- */
.hs-placeholder { text-align: center; padding: 2rem 1rem; }
.hs-placeholder-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.hs-placeholder-hint { font-size: 0.85rem; color: var(--gray-500); margin-top: 0.3rem; }

.hs-loading { text-align: center; padding: 2rem; }
.hs-loading-spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--navy);
  border-radius: 50%;
  animation: hs-spin 0.8s linear infinite;
  margin: 0 auto 1rem;
}
@keyframes hs-spin { to { transform: rotate(360deg); } }

.hs-error, .hs-no-results { text-align: center; padding: 2rem; color: var(--gray-600); }
.hs-external-link {
  display: inline-block; margin-top: 0.8rem;
  color: var(--steel); font-size: 0.9rem; text-decoration: none;
}
.hs-external-link:hover { text-decoration: underline; }

.hs-results-header {
  margin-bottom: 1rem; padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  font-size: 0.9rem; color: var(--gray-600);
}

.hs-results-list { display: flex; flex-direction: column; gap: 0.75rem; }

.hs-result-item {
  background: var(--white);
  border: 1px solid rgba(0,0,0,0.05);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  transition: border-color 0.2s;
}
.hs-result-item:hover { border-color: var(--steel); }

.hs-result-code {
  display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.4rem;
}
.hs-result-code code {
  font-size: 1.1rem; font-weight: 700; color: var(--navy);
  letter-spacing: 0.5px; background: none; padding: 0;
}

.hs-level {
  font-size: 0.7rem; padding: 2px 8px; border-radius: 10px;
  background: rgba(70,101,155,0.1); color: var(--steel);
  font-weight: 600; text-transform: uppercase;
}

.hs-result-names { display: flex; flex-direction: column; gap: 0.2rem; }
.hs-name-zh { font-size: 0.95rem; color: var(--text-black); font-weight: 500; }
.hs-name-en { font-size: 0.82rem; color: var(--gray-500); }

.hs-rates-toggle {
  margin-top: 0.6rem; font-size: 0.8rem; color: var(--steel);
  cursor: pointer; user-select: none;
}
.hs-rates-toggle:hover { text-decoration: underline; }

.hs-rates-detail {
  display: none; margin-top: 0.5rem;
  background: rgba(249,247,232,0.5);
  border-radius: 8px; padding: 0.6rem 1rem;
}
.hs-rates-detail.open { display: block; }

.hs-rates-table { width: 100%; font-size: 0.82rem; border-collapse: collapse; }
.hs-rates-table td { padding: 4px 8px; }
.hs-rates-table td:first-child { color: var(--gray-500); width: 40%; }
.hs-rates-table td:last-child { font-weight: 500; }

.hs-results-footer {
  margin-top: 1.5rem; padding-top: 0.75rem;
  border-top: 1px solid rgba(0,0,0,0.06);
  font-size: 0.8rem; color: var(--gray-500);
  text-align: center;
}

/* --- Container Tracking --- */
.track-result-card {
  background: var(--white);
  border: 1px solid rgba(0,0,0,0.05);
  border-radius: 10px;
  padding: 1.2rem;
}

.track-result-header {
  display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.5rem;
}
.track-number-display {
  font-size: 1.05rem; font-weight: 700; color: var(--navy);
  letter-spacing: 1px; font-family: monospace;
}

.track-result-type { font-size: 0.9rem; color: var(--gray-600); margin-bottom: 0.75rem; }

.track-carrier-badge {
  padding: 10px 16px;
  background: rgba(70,101,155,0.08);
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.track-iframe-container {
  border: 1px solid var(--gray-200);
  border-radius: 8px; overflow: hidden;
  margin-bottom: 0.5rem;
}
.track-iframe {
  width: 100%; height: 500px; border: none;
  display: block;
}

.track-iframe-note {
  font-size: 0.8rem; color: var(--gray-500); margin-bottom: 1rem;
}

.track-external-box {
  text-align: center; padding: 1.5rem;
  background: rgba(249,247,232,0.5);
  border-radius: 8px;
  margin-bottom: 1rem;
}
.track-external-box p { font-size: 0.9rem; color: var(--gray-600); margin-bottom: 1rem; }

.track-btn-external {
  display: inline-block;
  padding: 10px 24px;
  background: var(--navy); color: var(--white);
  border-radius: 24px; text-decoration: none;
  font-weight: 600; font-size: 0.9rem;
  transition: background 0.2s;
}
.track-btn-external:hover { background: var(--navy-light); }

.track-no-carrier { margin-bottom: 1rem; }
.track-no-carrier p { font-size: 0.9rem; color: var(--gray-600); margin-bottom: 0.75rem; }

.track-carrier-list { display: flex; flex-wrap: wrap; gap: 6px; }

.track-carrier-chip {
  padding: 6px 14px;
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  font-size: 0.8rem; text-decoration: none;
  color: var(--steel);
  transition: all 0.2s;
}
.track-carrier-chip:hover { border-color: var(--navy); color: var(--navy); background: rgba(22,45,89,0.04); }

.track-tip {
  margin-top: 1rem; font-size: 0.8rem; color: var(--gray-500);
}

/* --- Cases Page --- */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.5rem;
}

.case-card {
  background: var(--white);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.3s;
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.case-thumb {
  height: 200px;
  background: var(--cream-light);
  display: flex; align-items: center; justify-content: center;
  color: var(--steel-muted);
  font-size: 0.85rem;
  border-bottom: 1px solid rgba(0,0,0,0.04);
}

.case-body { padding: 1.5rem; }

.case-body .tag {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(70,101,155,0.08);
  color: var(--steel);
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.case-body h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.case-body p { font-size: 0.88rem; color: var(--gray-500); margin-bottom: 0; }

/* --- Responsive --- */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .hero-visual { order: -1; }
  .hero-visual img { max-width: 200px; }

  .service-detail {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .service-detail:nth-child(even) { direction: ltr; }

  .about-grid, .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

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

  .nav-links {
    display: none;
    position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
    background: var(--white);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    font-size: 1.1rem;
  }
  .nav-links.open { display: flex; }
  .menu-toggle { display: block; }

  .hero-stats { gap: 1.5rem; }
}

@media (max-width: 600px) {
  .section { padding: 3rem 1rem; }
  .hero { padding: calc(var(--header-h) + 2rem) 1rem 3rem; }
  .hero-stats { flex-direction: column; gap: 1rem; }
  .footer-inner { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .page-header { padding: calc(var(--header-h) + 3rem) 1rem 2rem; }
  /* Service quick nav: 3 columns on mobile */
  .hero + section > div[style*="grid-template-columns:repeat(6,1fr)"] {
    grid-template-columns: repeat(3,1fr) !important;
  }
}