/* Ueno Container Logistics (UCL) - Modern Corporate Stylesheet */
:root {
  --primary-900: #0a1f44;
  --primary-800: #0f2b5c;
  --primary-700: #1a458b;
  --primary-600: #255eb3;
  --primary-500: #3b82f6;
  --accent-blue: #0284c7;
  --accent-gold: #c59b27;
  --accent-gold-dark: #927014;
  
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --bg-alt: #f1f5f9;
  
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-light: #94a3b8;
  --text-white: #ffffff;
  
  --border-light: #e2e8f0;
  --border-focus: #0284c7;
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -1px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-heading: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  
  --max-w: 1200px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  color: var(--text-main);
  background-color: var(--bg-main);
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

a {
  color: var(--primary-700);
  text-decoration: none;
  transition: color 0.15s ease, opacity 0.15s ease;
}

a:hover {
  color: var(--primary-500);
}

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

/* Container */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--primary-900);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.015em;
}

h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 2.2vw, 1.6rem); }
h4 { font-size: 1.2rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-muted);
}

p:last-child {
  margin-bottom: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
}

.btn-primary {
  background-color: var(--primary-800);
  color: var(--text-white);
}

.btn-primary:hover {
  background-color: var(--primary-700);
  color: var(--text-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--primary-800);
  border-color: var(--border-light);
}

.btn-secondary:hover {
  background-color: var(--bg-alt);
  color: var(--primary-900);
  border-color: var(--primary-600);
}

.btn-gold {
  background-color: var(--accent-gold);
  color: var(--text-white);
}

.btn-gold:hover {
  background-color: var(--accent-gold-dark);
  color: var(--text-white);
}

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
}

/* Header & Navbar */
.site-header {
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.top-bar {
  background-color: var(--primary-900);
  color: #cbd5e1;
  font-size: 0.825rem;
  padding: 0.4rem 0;
}

.top-bar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.top-bar-info {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.top-bar-info a {
  color: #e2e8f0;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.top-bar-info a:hover {
  color: var(--text-white);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo img {
  height: 52px;
  width: auto;
  object-fit: contain;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-list {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 0.25rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.85rem;
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--primary-900);
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary-700);
  background-color: var(--bg-alt);
}

/* Dropdown */
.has-dropdown:hover .dropdown-menu,
.has-dropdown:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--bg-card);
  min-width: 250px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
  list-style: none;
  padding: 0.5rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 100;
}

.dropdown-link {
  display: block;
  padding: 0.55rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-main);
  transition: all 0.15s ease;
}

.dropdown-link:hover, .dropdown-link.active {
  background-color: var(--bg-alt);
  color: var(--primary-700);
  padding-left: 1.5rem;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.65rem;
  font-size: 1.25rem;
  color: var(--primary-900);
  cursor: pointer;
}

/* Hero Section */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--primary-900) 0%, var(--primary-800) 60%, var(--primary-700) 100%);
  color: var(--text-white);
  padding: 4.5rem 0 5rem;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at 85% 20%, rgba(2, 132, 199, 0.25) 0%, transparent 60%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #e2e8f0;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

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

.hero p {
  color: #cbd5e1;
  font-size: 1.15rem;
  line-height: 1.6;
  margin-bottom: 2rem;
  max-width: 680px;
}

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

/* Page Banner */
.page-banner {
  background: linear-gradient(135deg, var(--primary-900) 0%, var(--primary-800) 100%);
  color: var(--text-white);
  padding: 3rem 0;
}

.page-banner h1 {
  color: var(--text-white);
  font-size: 2.25rem;
  margin-bottom: 0.5rem;
}

.page-banner p {
  color: #94a3b8;
  font-size: 1.05rem;
  max-width: 650px;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: #94a3b8;
  margin-bottom: 0.75rem;
}

.breadcrumbs a {
  color: #cbd5e1;
}

.breadcrumbs a:hover {
  color: var(--text-white);
}

/* Sections */
.section {
  padding: 4.5rem 0;
}

.section-alt {
  background-color: var(--bg-alt);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem;
}

.section-header .section-tag {
  color: var(--accent-blue);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 0.5rem;
}

.section-header h2 {
  margin-bottom: 0.75rem;
}

.section-header p {
  font-size: 1.05rem;
}

/* Cards & Grids */
.grid {
  display: grid;
  gap: 1.75rem;
}

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: #cbd5e1;
}

.card-img-wrap {
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 1.25rem;
  aspect-ratio: 16 / 10;
  background-color: #e2e8f0;
}

.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.card:hover .card-img-wrap img {
  transform: scale(1.03);
}

.card h3 {
  margin-bottom: 0.75rem;
}

.card p {
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Feature List */
.feature-list {
  list-style: none;
  margin: 1rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.925rem;
  color: var(--text-muted);
}

.feature-list li svg,
.feature-list li .bullet-icon {
  flex-shrink: 0;
  color: var(--accent-blue);
  width: 18px;
  height: 18px;
  margin-top: 0.2rem;
}

/* Awards Section */
.awards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.award-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  align-items: center;
  gap: 1.75rem;
  box-shadow: var(--shadow-sm);
}

.award-img {
  width: 110px;
  height: 110px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.award-img img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.award-body h3 {
  font-size: 1.15rem;
  color: var(--primary-900);
  margin-bottom: 0.35rem;
}

.award-year {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-gold-dark);
  background-color: #fef3c7;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.5rem;
}

.award-body p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Responsive Table */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  background: var(--bg-card);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.925rem;
}

.data-table th, .data-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-light);
}

.data-table th {
  background-color: var(--primary-900);
  color: var(--text-white);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.data-table th.highlight-col {
  background-color: var(--primary-700);
  border-left: 2px solid var(--accent-blue);
  border-right: 2px solid var(--accent-blue);
}

.data-table td.highlight-col {
  background-color: #f0f7ff;
  font-weight: 600;
  color: var(--primary-900);
  border-left: 2px solid var(--accent-blue);
  border-right: 2px solid var(--accent-blue);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:hover td:not(.highlight-col) {
  background-color: var(--bg-alt);
}

.category-row th {
  background-color: #e2e8f0;
  color: var(--primary-900);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  padding: 0.65rem 1.25rem;
}

/* Interactive Calculators */
.calc-wrapper {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 2.25rem;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

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

.calc-form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.calc-form-group .hint {
  font-size: 0.775rem;
  color: var(--text-light);
  margin-top: 0.25rem;
}

.form-control {
  width: 100%;
  padding: 0.7rem 0.9rem;
  font-size: 0.95rem;
  color: var(--text-main);
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

.calc-results {
  background: linear-gradient(135deg, #f8fafc 0%, #edf2f7 100%);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.result-card {
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid #cbd5e1;
}

.result-card:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.result-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.result-value {
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--primary-900);
  margin-top: 0.2rem;
}

.result-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.825rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  margin-top: 0.4rem;
}

.status-safe {
  background-color: #dcfce7;
  color: #166534;
}

.status-warning {
  background-color: #fef3c7;
  color: #92400e;
}

.status-danger {
  background-color: #fee2e2;
  color: #991b1b;
}

/* Forms */
.form-box {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 2.25rem;
  box-shadow: var(--shadow-sm);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

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

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.form-group label .req {
  color: #dc2626;
}

textarea.form-control {
  min-height: 140px;
  resize: vertical;
}

.form-status {
  padding: 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.25rem;
  font-size: 0.925rem;
  display: none;
}

.form-status.success {
  display: block;
  background-color: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.form-status.error {
  display: block;
  background-color: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

/* Contact / Office Directory */
.office-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}

.office-card.head-office {
  border-top: 4px solid var(--accent-blue);
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.office-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background-color: var(--primary-100, #e0f2fe);
  color: var(--primary-700);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
}

.office-card h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--primary-900);
}

.office-info-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  font-size: 0.9rem;
}

.office-info-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: var(--text-muted);
}

.office-info-list .icon {
  flex-shrink: 0;
  color: var(--accent-blue);
  width: 18px;
  height: 18px;
  margin-top: 0.2rem;
}

.office-actions {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
  display: flex;
  gap: 0.75rem;
}

/* Footer */
.site-footer {
  background-color: var(--primary-900);
  color: #94a3b8;
  padding: 4.5rem 0 2rem;
  border-top: 3px solid var(--accent-blue);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-col h4 {
  color: var(--text-white);
  font-size: 1rem;
  margin-bottom: 1.25rem;
  letter-spacing: 0.02em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  font-size: 0.9rem;
}

.footer-links a {
  color: #cbd5e1;
}

.footer-links a:hover {
  color: var(--text-white);
  padding-left: 0.25rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
}

.footer-awards-strip {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.footer-award-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-award-item img {
  height: 32px;
  width: auto;
}

.footer-award-item span {
  font-size: 0.8rem;
  color: #e2e8f0;
  line-height: 1.2;
}

/* Mobile Responsiveness */
@media (max-width: 992px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem; }
  .calc-grid { grid-template-columns: 1fr; gap: 1.5rem; }
}

@media (max-width: 768px) {
  .top-bar { display: none; }
  .main-nav { display: none; }
  .mobile-toggle { display: block; }
  
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  
  .award-card {
    flex-direction: column;
    text-align: center;
  }
  
  .mobile-menu-active .main-nav {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-xl);
    padding: 1rem 1.5rem 1.5rem;
    align-items: stretch;
  }
  
  .mobile-menu-active .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
  }
  
  .mobile-menu-active .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background-color: var(--bg-alt);
    margin-top: 0.35rem;
    padding: 0.5rem 0;
    border-radius: var(--radius-sm);
  }
}