/* =============================================
   ONDESIGN — Main Stylesheet
   ============================================= */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Noto Sans JP', 'Noto Sans', 'Inter', sans-serif;
  color: #1e293b;
  background: #fff;
  line-height: 1.7;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* --- CSS Variables --- */
:root {
  --blue:     #1a56db;
  --blue-dk:  #1340b0;
  --blue-lt:  #e8f0fe;
  --navy:     #0f172a;
  --slate:    #1e293b;
  --gray:     #64748b;
  --gray-lt:  #f1f5f9;
  --border:   #e2e8f0;
  --white:    #ffffff;
  --shadow:   0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg:0 12px 48px rgba(0,0,0,0.12);
  --radius:   12px;
  --radius-sm:8px;
  --trans:    0.3s ease;
  --header-h: 72px;
}

/* =============================================
   HEADER
   ============================================= */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 1000;
  transition: background var(--trans), box-shadow var(--trans);
  background: transparent;
}
#header.scrolled {
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 40px;
}

/* Logo */
.logo {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.logo img {
  max-height: 48px;
  width: auto;
  object-fit: contain;
}

/* Nav */
#main-nav { flex: 1; }
.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--slate);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: color var(--trans), background var(--trans);
  white-space: nowrap;
}
.nav-link:hover { color: var(--blue); background: var(--blue-lt); }
#header:not(.scrolled) .nav-link { color: rgba(255,255,255,0.9); }
#header:not(.scrolled) .nav-link:hover { color: #fff; background: rgba(255,255,255,0.15); }

/* Dropdown */
.has-dropdown { position: relative; }
.dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--trans);
  z-index: 100;
}
.has-dropdown:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown li a {
  display: block;
  padding: 10px 16px;
  font-size: 13px;
  color: var(--slate);
  transition: background var(--trans), color var(--trans);
}
.dropdown li a:hover { background: var(--blue-lt); color: var(--blue); }
.dropdown li:first-child a { border-radius: var(--radius-sm) var(--radius-sm) 0 0; }
.dropdown li:last-child a  { border-radius: 0 0 var(--radius-sm) var(--radius-sm); }

/* Header Controls */
.header-controls {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 20px;
  padding: 4px 12px;
  transition: all var(--trans);
}
#header.scrolled .lang-switcher {
  background: var(--gray-lt);
  border-color: var(--border);
}
.lang-btn {
  font-size: 12px;
  font-weight: 600;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.5px;
  transition: color var(--trans);
  padding: 2px 4px;
  border-radius: 4px;
}
.lang-btn.active, .lang-btn:hover { color: #fff; }
#header.scrolled .lang-btn { color: var(--gray); }
#header.scrolled .lang-btn.active, #header.scrolled .lang-btn:hover { color: var(--blue); }
.lang-divider { color: rgba(255,255,255,0.4); font-size: 11px; }
#header.scrolled .lang-divider { color: var(--border); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all var(--trans);
}
#header.scrolled .hamburger span { background: var(--slate); }
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu */
.mobile-menu {
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0;
  background: #fff;
  border-bottom: 1px solid var(--border);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: all var(--trans);
  z-index: 999;
  box-shadow: var(--shadow);
}
.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}
.mobile-menu ul { padding: 16px 24px; }
.mobile-menu ul li a {
  display: block;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  font-weight: 500;
  color: var(--slate);
}
.mobile-menu ul li:last-child a { border-bottom: none; }

/* =============================================
   HERO
   ============================================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background-color: #0f172a;
  background-image: url('https://images.unsplash.com/photo-1486325212027-8081e485255e?w=1920&auto=format&fit=crop&q=85');
  background-size: cover;
  background-position: center 40%;
}
.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(10,20,48,0.88) 0%,
    rgba(15,30,70,0.80) 40%,
    rgba(26,86,219,0.55) 100%
  );
}
.hero-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 120px 24px 80px;
  max-width: 800px;
}
.hero-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 20px;
  padding: 6px 20px;
  margin-bottom: 32px;
  animation: fadeUp 0.8s ease 0.2s both;
}
.hero-title {
  font-size: clamp(64px, 12vw, 120px);
  font-weight: 700;
  letter-spacing: -4px;
  line-height: 1;
  margin-bottom: 28px;
  animation: fadeUp 0.8s ease 0.4s both;
}
.hero-title-on { color: #93c5fd; }
.hero-title-design { color: #ffffff; }
.hero-sub {
  font-size: clamp(15px, 2vw, 18px);
  color: rgba(255,255,255,0.75);
  font-weight: 300;
  letter-spacing: 0.5px;
  margin-bottom: 48px;
  animation: fadeUp 0.8s ease 0.6s both;
}
.hero-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeUp 0.8s ease 0.8s both;
}
.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,0.4);
  font-size: 10px;
  letter-spacing: 3px;
  animation: fadeIn 1s ease 1.2s both;
}
.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
  animation: scrollPulse 1.5s ease infinite;
}

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: all var(--trans);
  cursor: pointer;
}
.btn-primary {
  background: var(--blue);
  color: #fff;
  border: 2px solid var(--blue);
}
.btn-primary:hover {
  background: var(--blue-dk);
  border-color: var(--blue-dk);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(26,86,219,0.4);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.5);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
  transform: translateY(-2px);
}
.btn-full { width: 100%; }

/* =============================================
   SECTIONS COMMON
   ============================================= */
.section { padding: 100px 0; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-header--left { text-align: left; }
.section-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 16px;
  color: var(--gray);
  max-width: 560px;
  margin: 0 auto;
}
.section-more { text-align: center; margin-top: 48px; }
.more-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--blue);
  letter-spacing: 0.3px;
  transition: letter-spacing var(--trans);
}
.more-link:hover { letter-spacing: 1px; }

/* =============================================
   NEWS
   ============================================= */
.news-section { background: var(--gray-lt); }
.news-list { display: flex; flex-direction: column; gap: 0; }
.news-item {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  transition: background var(--trans);
}
.news-item:last-child { border-bottom: none; }
.news-date {
  font-size: 13px;
  color: var(--gray);
  white-space: nowrap;
  font-weight: 500;
  min-width: 90px;
}
.news-cat {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  padding: 3px 10px;
  border-radius: 20px;
  background: var(--blue-lt);
  color: var(--blue);
  white-space: nowrap;
}
.news-cat--green { background: #dcfce7; color: #16a34a; }
.news-cat--blue  { background: #dbeafe; color: #1d4ed8; }
.news-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--slate);
  transition: color var(--trans);
}
.news-title:hover { color: var(--blue); }

/* =============================================
   SERVICES
   ============================================= */
.services-section { background: #fff; }
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.service-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--trans), box-shadow var(--trans), border-color var(--trans);
  display: flex;
  flex-direction: column;
  background: #fff;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--blue);
}
.service-visual {
  height: 220px;
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 0;
}
.service-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  transition: opacity var(--trans);
}
.service-card:hover .service-visual::after { opacity: 0.7; }
.service-visual svg { display: none; }

.sv-drawing {
  background-image: url('https://images.unsplash.com/photo-1477959858617-67f85cf4f1df?w=700&auto=format&fit=crop&q=80');
}
.sv-drawing::after {
  background: linear-gradient(160deg, rgba(26,86,219,0.65) 0%, rgba(10,30,80,0.55) 100%);
}
.sv-bim {
  background-image: url('https://images.unsplash.com/photo-1558618666-fcd25c85cd64?w=700&auto=format&fit=crop&q=80');
}
.sv-bim::after {
  background: linear-gradient(160deg, rgba(217,119,6,0.60) 0%, rgba(80,40,0,0.50) 100%);
}
.sv-design {
  background-image: url('https://images.unsplash.com/photo-1504307651254-35680f356dfd?w=700&auto=format&fit=crop&q=80');
}
.sv-design::after {
  background: linear-gradient(160deg, rgba(22,163,74,0.60) 0%, rgba(5,60,25,0.55) 100%);
}
.sv-hr {
  background-image: url('https://images.unsplash.com/photo-1522202176988-66273c2fd55f?w=700&auto=format&fit=crop&q=80');
}
.sv-hr::after {
  background: linear-gradient(160deg, rgba(219,39,119,0.60) 0%, rgba(80,10,40,0.55) 100%);
}

/* Service number badge floating over photo */
.service-visual-badge {
  position: absolute;
  bottom: 16px;
  left: 20px;
  z-index: 2;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  color: rgba(255,255,255,0.7);
  text-shadow: 0 1px 4px rgba(0,0,0,0.4);
}
.service-body { padding: 32px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.service-num {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--blue);
}
.service-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.3;
}
.service-desc { font-size: 14px; color: var(--gray); line-height: 1.7; }
.service-features {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 4px;
}
.service-features li {
  font-size: 13px;
  color: var(--slate);
  padding-left: 16px;
  position: relative;
}
.service-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--blue);
  font-weight: 700;
}
.service-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--blue);
  margin-top: auto;
  padding-top: 16px;
  display: inline-block;
  transition: letter-spacing var(--trans);
}
.service-link:hover { letter-spacing: 0.5px; }

/* =============================================
   STATS
   ============================================= */
.stats-section {
  background: var(--navy);
  padding: 72px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.stat-item { padding: 24px; }
.stat-num {
  font-size: clamp(40px, 5vw, 56px);
  font-weight: 700;
  color: #fff;
  line-height: 1;
}
.stat-unit {
  font-size: 20px;
  font-weight: 500;
  color: #93c5fd;
}
.stat-label {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  margin-top: 8px;
  letter-spacing: 0.5px;
}

/* =============================================
   WORKS
   ============================================= */
.works-section { background: var(--gray-lt); }
.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 20px;
}
.work-card--large { grid-column: span 1; grid-row: span 2; }
.work-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  min-height: 220px;
  display: block;
}
.work-card--large { min-height: 460px; }
.work-img {
  position: absolute;
  inset: 0;
  transition: transform 0.6s ease;
}
.work-card:hover .work-img { transform: scale(1.05); }

/* Work image backgrounds — real Unsplash photos */
.wi-1 {
  background-image: url('https://images.unsplash.com/photo-1487958449943-2429e8be8625?w=900&auto=format&fit=crop&q=80');
  background-size: cover; background-position: center;
}
.wi-2 {
  background-image: url('https://images.unsplash.com/photo-1551882547-ff40c63fe2fa?w=700&auto=format&fit=crop&q=80');
  background-size: cover; background-position: center;
}
.wi-3 {
  background-image: url('https://images.unsplash.com/photo-1497366216548-37526070297c?w=700&auto=format&fit=crop&q=80');
  background-size: cover; background-position: center;
}
.wi-4 {
  background-image: url('https://images.unsplash.com/photo-1580582932707-520aed937b7b?w=700&auto=format&fit=crop&q=80');
  background-size: cover; background-position: center;
}
.wi-5 {
  background-image: url('https://images.unsplash.com/photo-1480714378408-67cf0d13bc1b?w=700&auto=format&fit=crop&q=80');
  background-size: cover; background-position: center;
}
.wi-6 {
  background-image: url('https://images.unsplash.com/photo-1545558014-8692077e9b5c?w=700&auto=format&fit=crop&q=80');
  background-size: cover; background-position: center;
}

/* Subtle dark overlay on work cards for text legibility */
.wi-1::after, .wi-2::after, .wi-3::after, .wi-4::after, .wi-5::after, .wi-6::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(10,20,40,0.25);
  transition: background var(--trans);
}
.work-card:hover .work-img::after,
.wi-1:hover::after, .wi-2:hover::after, .wi-3:hover::after,
.wi-4:hover::after, .wi-5:hover::after, .wi-6:hover::after {
  background: rgba(10,20,40,0.10);
}
.work-overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 24px;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, transparent 100%);
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 2;
}
.work-area {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
}
.work-name {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  line-height: 1.4;
}
.work-type {
  font-size: 11px;
  background: rgba(26,86,219,0.8);
  color: #fff;
  padding: 3px 10px;
  border-radius: 20px;
  display: inline-block;
  align-self: flex-start;
}

/* =============================================
   ABOUT
   ============================================= */
.about-section { background: #fff; }
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.about-text .section-header { margin-bottom: 32px; }
.about-lead {
  font-size: 16px;
  color: var(--gray);
  line-height: 1.8;
  margin-bottom: 40px;
}
.company-table { width: 100%; border-collapse: collapse; }
.company-table tr { border-bottom: 1px solid var(--border); }
.company-table tr:last-child { border-bottom: none; }
.company-table th, .company-table td { padding: 16px 0; vertical-align: top; }
.company-table th {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray);
  white-space: nowrap;
  padding-right: 32px;
  width: 120px;
}
.company-table td { font-size: 14px; color: var(--slate); }
.about-map {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.about-map svg { width: 100%; height: auto; display: block; }

/* =============================================
   CAREERS
   ============================================= */
.careers-section { padding: 0; }
.careers-inner {
  background: linear-gradient(135deg, #1e3a5f 0%, #1a56db 100%);
  padding: 100px 0;
}
.careers-content {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 32px;
  text-align: center;
}
.careers-content .section-tag { color: rgba(255,255,255,0.6); }
.careers-content .section-title { color: #fff; margin-bottom: 24px; }
.careers-desc {
  font-size: 16px;
  color: rgba(255,255,255,0.75);
  line-height: 1.8;
  margin-bottom: 40px;
}
.careers-positions {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 40px;
  text-align: left;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 24px;
}
.position-item {
  display: flex;
  align-items: center;
  gap: 12px;
}
.position-item p {
  font-size: 15px;
  color: #fff;
  font-weight: 500;
}
.position-badge {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  background: #ef4444;
  color: #fff;
  padding: 3px 10px;
  border-radius: 20px;
  white-space: nowrap;
}
.position-badge--green { background: #16a34a; }
.careers-content .btn-primary {
  background: #fff;
  color: var(--blue);
  border-color: #fff;
}
.careers-content .btn-primary:hover {
  background: var(--blue-lt);
  border-color: var(--blue-lt);
  color: var(--blue-dk);
}

/* =============================================
   CONTACT
   ============================================= */
.contact-section { background: var(--gray-lt); }
.contact-wrapper {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 64px;
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 32px; }
.contact-info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--blue-lt);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.ci-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 6px;
}
.ci-value { font-size: 14px; color: var(--slate); line-height: 1.6; }
.contact-lang-note {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--gray);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
}
.lang-flag { font-size: 18px; }
.lang-sep { color: var(--border); }

/* Contact Form */
.contact-form {
  background: #fff;
  border-radius: var(--radius);
  padding: 48px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.form-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }
.form-group:last-child { margin-bottom: 0; }
.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--slate);
}
.form-group input,
.form-group textarea,
.form-group select {
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--slate);
  background: var(--gray-lt);
  transition: border-color var(--trans), background var(--trans), box-shadow var(--trans);
  width: 100%;
  outline: none;
  -webkit-appearance: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--blue);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(26,86,219,0.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-success {
  display: none;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  padding: 16px;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: #16a34a;
  font-weight: 500;
}
.form-success.show { display: flex; }
.form-success svg { flex-shrink: 0; }

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: var(--navy);
  padding: 72px 0 0;
  color: rgba(255,255,255,0.65);
}
.footer-inner {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 64px;
  padding-bottom: 64px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand { display: flex; flex-direction: column; gap: 16px; }
.footer-tagline { font-size: 13px; color: rgba(255,255,255,0.4); }
.footer-lang-switch {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  margin-top: 8px;
}
.lang-btn-footer {
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: color var(--trans);
  padding: 2px 4px;
}
.lang-btn-footer.active, .lang-btn-footer:hover { color: #fff; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.footer-col h4 {
  font-size: 13px;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col ul li a {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  transition: color var(--trans);
}
.footer-col ul li a:hover { color: #fff; }
.footer-bottom {
  text-align: center;
  padding: 24px;
  font-size: 12px;
  color: rgba(255,255,255,0.3);
}

/* =============================================
   BACK TO TOP
   ============================================= */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(26,86,219,0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--trans);
  z-index: 999;
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--blue-dk);
  transform: translateY(-4px);
}

/* =============================================
   ANIMATIONS
   ============================================= */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes scrollPulse {
  0%   { transform: scaleY(1); opacity: 1; }
  50%  { transform: scaleY(0.6); opacity: 0.4; }
  100% { transform: scaleY(1); opacity: 1; }
}

/* Scroll-reveal utility */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .about-inner { grid-template-columns: 1fr; gap: 48px; }
  .about-map { max-width: 420px; }
  .contact-wrapper { grid-template-columns: 1fr; gap: 40px; }
  .footer-inner { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 900px) {
  #main-nav { display: none; }
  .hamburger { display: flex; }
  .works-grid { grid-template-columns: 1fr 1fr; }
  .work-card--large { grid-column: span 2; min-height: 320px; }
}

@media (max-width: 640px) {
  :root { --header-h: 60px; }
  .section { padding: 72px 0; }
  .container { padding: 0 20px; }
  .header-inner { padding: 0 20px; }
  .services-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .works-grid { grid-template-columns: 1fr; }
  .work-card--large { grid-column: span 1; min-height: 280px; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 28px 20px; }
  .hero-btns { flex-direction: column; align-items: center; }
  .careers-content .btn { width: 100%; }
}

@media (max-width: 420px) {
  .news-item { flex-wrap: wrap; gap: 8px; }
  .footer-links { grid-template-columns: 1fr; }
}

/* Vietnamese font adjustment */
body.lang-vi {
  font-family: 'Noto Sans', 'Inter', sans-serif;
}
body.lang-vi .hero-title { letter-spacing: -2px; }

/* =============================================
   DETAIL PAGES (News, Services)
   ============================================= */
.page-header {
  padding: 160px 0 80px;
  background: var(--navy);
  color: #fff;
  text-align: center;
}
.page-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  margin-bottom: 16px;
}
.page-meta {
  color: #93c5fd;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
}
.detail-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 80px 32px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--slate);
}
.detail-content h3 { font-size: 24px; color: var(--navy); margin: 40px 0 20px; }
.detail-content p { margin-bottom: 24px; }
.detail-content img { border-radius: var(--radius); margin: 32px 0; }

.service-detail {
  max-width: 1120px;
}
.service-lead {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  align-items: stretch;
  margin-bottom: 48px;
}
.service-lead-copy {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 32px;
  box-shadow: var(--shadow);
}
.service-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}
.service-lead-copy h2 {
  color: var(--navy);
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.35;
  margin-bottom: 18px;
}
.service-lead-copy p {
  color: var(--gray);
  font-size: 16px;
  margin-bottom: 0;
}
.service-summary {
  display: grid;
  gap: 16px;
}
.service-summary-item {
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 24px;
}
.service-summary-item strong {
  display: block;
  font-size: 26px;
  line-height: 1;
  margin-bottom: 10px;
}
.service-summary-item span {
  color: #cbd5e1;
  font-size: 13px;
}
.service-section {
  margin-top: 56px;
}
.service-section-title {
  color: var(--navy);
  font-size: 24px;
  margin: 0 0 22px;
}
.service-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.service-info-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 26px;
  background: #fff;
}
.service-info-card h3 {
  font-size: 18px;
  margin: 0 0 10px;
}
.service-info-card p {
  color: var(--gray);
  font-size: 14px;
  margin: 0;
}
.service-flow {
  counter-reset: flow;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.service-flow-step {
  counter-increment: flow;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 22px;
  background: #fff;
  position: relative;
}
.service-flow-step::before {
  content: counter(flow, decimal-leading-zero);
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--blue-lt);
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 16px;
}
.service-flow-step h3 {
  font-size: 16px;
  margin: 0 0 8px;
}
.service-flow-step p {
  color: var(--gray);
  font-size: 13px;
  margin: 0;
}
.service-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.service-list li {
  border-left: 3px solid var(--blue);
  background: var(--gray-lt);
  padding: 14px 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.service-price-card {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  border: 1px solid #bfdbfe;
  background: linear-gradient(135deg, #eff6ff 0%, #fff 100%);
  border-radius: var(--radius-sm);
  padding: 28px;
}
.service-price-card strong {
  color: var(--navy);
  font-size: clamp(26px, 4vw, 40px);
}
.service-license {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--blue-lt);
  color: var(--blue-dk);
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 700;
}
.service-cta {
  margin-top: 64px;
  padding: 34px;
  border-radius: var(--radius-sm);
  background: var(--navy);
  color: #fff;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}
.service-cta h2 {
  font-size: 24px;
  margin-bottom: 8px;
}
.service-cta p {
  color: #cbd5e1;
  margin: 0;
}

@media (max-width: 860px) {
  .service-lead,
  .service-card-grid,
  .service-list { grid-template-columns: 1fr; }
  .service-flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .service-cta,
  .service-price-card { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 560px) {
  .service-flow { grid-template-columns: 1fr; }
  .service-lead-copy,
  .service-cta { padding: 24px; }
}

/* =============================================
   FAQ & LIST PAGES
   ============================================= */
.faq-section { background: var(--gray-lt); }
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 28px;
}
.faq-item h3 {
  font-size: 17px;
  color: var(--navy);
  margin-bottom: 12px;
}
.faq-item p {
  color: var(--gray);
  font-size: 14px;
}
.list-page {
  max-width: 1000px;
  margin: 0 auto;
  padding: 80px 32px;
}
.list-page .news-list {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.works-list-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}
.works-list-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #fff;
  transition: transform var(--trans), box-shadow var(--trans);
}
.works-list-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.works-list-card .work-img {
  min-height: 220px;
  border-radius: 0;
}
.works-list-body {
  padding: 24px;
}
.works-list-body h3 {
  color: var(--navy);
  font-size: 18px;
  margin-bottom: 10px;
}
.works-list-body p {
  color: var(--gray);
  font-size: 14px;
}

@media (max-width: 640px) {
  .faq-grid,
  .works-list-grid { grid-template-columns: 1fr; }
  .list-page { padding: 56px 20px; }
}