/* ==========================================================================
   DuyHaiIT - Visual-First, High Image Showcase Theme
   Typography: Be Vietnam Pro (100% Native Vietnamese Support)
   Brand Colors:
   - Golden Amber: #FFB800 / #FFA000
   - Royal Navy: #0D3B66 / #07223D / #041426
   - Crisp Background: #FFFFFF / #F8FAFC
   ========================================================================== */

:root {
  --brand-yellow: #ffb800;
  --brand-yellow-dark: #e69500;
  --brand-yellow-light: #fff5dc;
  --gradient-gold: linear-gradient(135deg, #ffb800 0%, #ff8800 100%);

  --brand-navy: #0d3b66;
  --brand-navy-dark: #07223d;
  --brand-navy-darker: #041426;
  --brand-navy-light: #16538c;
  --brand-navy-soft: #edf4fa;

  --bg-body: #f8fafc;
  --bg-card: #ffffff;

  --text-main: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;

  --border-light: #e2e8f0;

  --shadow-sm: 0 2px 8px rgba(13, 59, 102, 0.06);
  --shadow-md: 0 8px 24px rgba(13, 59, 102, 0.08);
  --shadow-lg: 0 16px 36px rgba(13, 59, 102, 0.12);
  --shadow-gold: 0 6px 20px rgba(255, 184, 0, 0.35);

  --font-heading: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-body);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
}

body {
  position: relative;
  overflow-x: hidden;
}

/* Helpers */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.text-center { text-align: center; }
.c-gold { color: var(--brand-yellow); }
.c-navy { color: var(--brand-navy); }
.c-gold-grad {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section {
  padding: 80px 0;
}
.section-title-wrap {
  max-width: 720px;
  margin: 0 auto 48px;
}
.section-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--brand-navy);
  background: var(--brand-navy-soft);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}
.section-heading {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  font-weight: 800;
  color: var(--brand-navy-dark);
  line-height: 1.25;
  margin-bottom: 10px;
}
.section-intro {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Topbar
   ========================================================================== */
.topbar-strip {
  background: var(--brand-navy-darker);
  color: #cbd5e1;
  font-size: 0.84rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.topbar-left, .topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}
.top-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.top-item svg {
  width: 14px;
  height: 14px;
  color: var(--brand-yellow);
}
.top-divider {
  color: rgba(255, 255, 255, 0.2);
}
.top-phone {
  color: #ffffff;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: color 0.2s;
}
.top-phone:hover {
  color: var(--brand-yellow);
}
.top-phone svg {
  width: 14px;
  height: 14px;
  color: var(--brand-yellow);
}

/* ==========================================================================
   Header
   ========================================================================== */
.header-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.logo-box {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: #ffffff;
  border: 1px solid var(--border-light);
  padding: 4px;
  box-shadow: var(--shadow-sm);
}
.brand-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.brand-text {
  display: flex;
  flex-direction: column;
}
.brand-name {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  line-height: 1;
}
.brand-slogan {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--brand-navy);
  letter-spacing: 0.05em;
  margin-top: 3px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.2s;
}
.nav-link:hover {
  color: var(--brand-navy);
}
.btn-header-call {
  background: var(--gradient-gold);
  color: #0b1424;
  font-weight: 700;
  font-size: 0.88rem;
  padding: 9px 18px;
  border-radius: var(--radius-full);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: var(--shadow-gold);
  transition: all 0.25s;
}
.btn-header-call:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255, 184, 0, 0.45);
}
.btn-header-call svg {
  width: 15px;
  height: 15px;
}
.mobile-nav-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--brand-navy);
  cursor: pointer;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.98rem;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.25s ease;
}
.btn-gold {
  background: var(--gradient-gold);
  color: #0b1424;
  box-shadow: var(--shadow-gold);
}
.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 184, 0, 0.5);
  color: #000;
}
.btn-zalo {
  background: #0068ff;
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(0, 104, 255, 0.25);
}
.btn-zalo:hover {
  background: #0056d6;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 104, 255, 0.4);
}
.btn-lg {
  padding: 14px 28px;
  font-size: 1.05rem;
}
.btn-block {
  width: 100%;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  padding: 60px 0;
  background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
  border-bottom: 1px solid var(--border-light);
}
.hero-container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}
.hero-tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--brand-yellow-light);
  border: 1px solid rgba(255, 184, 0, 0.4);
  border-radius: var(--radius-full);
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--brand-navy-dark);
  margin-bottom: 18px;
}
.hero-heading {
  font-family: var(--font-heading);
  font-size: clamp(2.3rem, 4.2vw, 3.4rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--brand-navy-dark);
  margin-bottom: 14px;
}
.hero-subtext {
  font-size: 1.15rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 28px;
}
.hero-action-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.hero-mini-badges {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.m-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--brand-navy-dark);
}
.m-badge svg {
  width: 18px;
  height: 18px;
  color: #16a34a;
}

.hero-banner-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
}
.hero-main-img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  display: block;
}
.hero-img-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(7, 34, 61, 0.92) 100%);
  padding: 24px 20px 16px;
  color: #ffffff;
}
.overlay-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  margin-bottom: 6px;
}
.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
}
.overlay-text {
  font-size: 0.88rem;
  opacity: 0.9;
}

/* ==========================================================================
   7 Main Services
   ========================================================================== */
.services-sec {
  background: var(--bg-body);
}
.service-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.service-photo-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}
.service-photo-card:hover {
  transform: translateY(-6px);
  border-color: var(--brand-yellow);
  box-shadow: var(--shadow-lg);
}
.card-featured {
  border: 2px solid var(--brand-yellow);
  box-shadow: 0 8px 28px rgba(255, 184, 0, 0.2);
}
.card-img-wrap {
  position: relative;
  height: 200px;
  overflow: hidden;
  background: #e2e8f0;
}
.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.service-photo-card:hover .card-img-wrap img {
  transform: scale(1.05);
}
.card-ribbon {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--gradient-gold);
  color: #0b1424;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.card-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}
.card-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--brand-navy-dark);
  margin-bottom: 12px;
}
.card-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
  flex-grow: 1;
}
.card-features li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.45;
}
.card-features li svg {
  width: 16px;
  height: 16px;
  color: #16a34a;
  flex-shrink: 0;
  margin-top: 3px;
}

.card-target {
  background: var(--bg-body);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}
.card-target svg {
  width: 13px;
  height: 13px;
  color: var(--brand-navy);
}

.btn-card-action {
  background: var(--brand-navy-soft);
  color: var(--brand-navy);
  font-weight: 700;
  font-size: 0.88rem;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.2s;
}
.btn-card-action:hover {
  background: var(--gradient-gold);
  color: #0b1424;
  box-shadow: var(--shadow-gold);
}

.card-span-wide {
  grid-column: span 3;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
}
.card-span-wide .card-img-wrap {
  height: 100%;
  min-height: 240px;
}

/* ==========================================================================
   Real Projects Section & Stats
   ========================================================================== */
.projects-sec {
  background: #ffffff;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

/* Stats Counter Strip */
.stats-counter-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  background: linear-gradient(135deg, var(--brand-navy-dark) 0%, var(--brand-navy-darker) 100%);
  border-radius: var(--radius-lg);
  padding: 24px 30px;
  margin-bottom: 36px;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 184, 0, 0.25);
}
.stat-counter-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}
.stat-counter-item:last-child {
  border-right: none;
}
.s-count {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 900;
  color: var(--brand-yellow);
  line-height: 1.1;
  margin-bottom: 4px;
}
.s-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: #cbd5e1;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-bottom: 40px;
}
.project-card {
  background: var(--bg-body);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all 0.3s;
}
.project-card:hover {
  border-color: var(--brand-navy);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.proj-img-wrap {
  position: relative;
  background: #0f1c2e;
  overflow: hidden;
}
.proj-img-wrap img {
  width: 100%;
  height: auto;
  max-height: 380px;
  object-fit: cover;
  display: block;
}
.proj-info {
  padding: 24px;
}
.proj-badge {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 700;
  color: #0b1424;
  background: var(--brand-yellow);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 10px;
}
.proj-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--brand-navy-dark);
  margin-bottom: 8px;
}
.proj-loc {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--brand-navy);
  margin-bottom: 14px;
}
.proj-loc svg {
  width: 15px;
  height: 15px;
}
.proj-specs {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid var(--border-light);
  padding-top: 12px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* Dynamic Interactive Carousel / Slider */
.carousel-section-box {
  background: var(--bg-body);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  box-shadow: var(--shadow-md);
}
.carousel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}
.c-box-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--brand-navy-dark);
  margin-bottom: 4px;
}
.c-box-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
}
.carousel-nav-arrows {
  display: flex;
  gap: 10px;
}
.slider-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: #ffffff;
  border: 1px solid var(--border-light);
  color: var(--brand-navy-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}
.slider-btn:hover {
  background: var(--brand-yellow);
  color: #0b1424;
  border-color: var(--brand-yellow);
  transform: scale(1.08);
}
.slider-btn svg {
  width: 20px;
  height: 20px;
}

/* Slider Viewport and Track */
.slider-viewport {
  overflow-x: auto;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none; /* Hide scrollbar for clean UI */
  padding: 10px 4px 16px;
}
.slider-viewport::-webkit-scrollbar {
  display: none;
}
.slider-track {
  display: flex;
  gap: 20px;
  width: max-content;
  cursor: grab;
}
.slider-track:active {
  cursor: grabbing;
}
.slide-card {
  width: 270px;
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: all 0.25s ease;
}
.slide-card:hover {
  transform: translateY(-5px);
  border-color: var(--brand-yellow);
  box-shadow: var(--shadow-md);
}
.slide-img-box {
  position: relative;
  height: 180px;
  background: #0f1c2e;
  overflow: hidden;
}
.slide-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}
.slide-card:hover .slide-img-box img {
  transform: scale(1.06);
}
.slide-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(13, 59, 102, 0.88);
  backdrop-filter: blur(6px);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 184, 0, 0.4);
}
.slide-body {
  padding: 16px 14px;
}
.slide-body h4 {
  font-family: var(--font-heading);
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--brand-navy-dark);
  margin-bottom: 4px;
  line-height: 1.35;
}
.slide-body p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Founder Section
   ========================================================================== */
.founder-sec {
  background: var(--bg-body);
}
.founder-card-box {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 40px;
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  align-items: center;
}
.founder-photo-col {
  text-align: center;
}
.founder-img {
  width: 100%;
  max-width: 320px;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--brand-yellow);
}
.founder-badge-under {
  margin-top: 14px;
}
.founder-badge-under strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--brand-navy-dark);
}
.founder-badge-under span {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.founder-highlight-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--brand-yellow-light);
  border: 1px solid rgba(255, 184, 0, 0.4);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--brand-navy-dark);
  margin-bottom: 14px;
}
.founder-heading {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--brand-navy-dark);
  line-height: 1.3;
  margin-bottom: 14px;
}
.founder-desc {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 24px;
}
.founder-activities-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
.f-act-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--bg-body);
  padding: 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
}
.f-act-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--brand-navy-soft);
  color: var(--brand-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.f-act-item strong {
  display: block;
  font-size: 0.9rem;
  color: var(--brand-navy-dark);
}
.f-act-item p {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.founder-work-preview {
  border-top: 1px solid var(--border-light);
  padding-top: 16px;
}
.preview-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.preview-img-wrap img {
  width: 100%;
  max-height: 220px;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   4-Step Process
   ========================================================================== */
.process-sec {
  background: #ffffff;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.step-item {
  background: var(--bg-body);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 26px 20px;
  text-align: center;
  transition: all 0.25s;
}
.step-item:hover {
  border-color: var(--brand-yellow);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.step-num {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--brand-navy-dark);
  color: var(--brand-yellow);
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
}
.step-item h4 {
  font-family: var(--font-heading);
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--brand-navy-dark);
  margin-bottom: 6px;
}
.step-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-sec {
  background: #ffffff;
}
.contact-card-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  background: linear-gradient(135deg, #ffffff 0%, var(--brand-navy-soft) 100%);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  margin-bottom: 30px;
}
.c-heading {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--brand-navy-dark);
  margin-bottom: 8px;
}
.c-sub {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}
.contact-rows {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.c-row {
  display: flex;
  align-items: center;
  gap: 14px;
}
.c-icon-circle {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--brand-yellow-light);
  color: var(--brand-navy-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.c-sublabel {
  display: block;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}
.c-row strong {
  font-size: 0.98rem;
  color: var(--brand-navy-dark);
}
.hotline-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.hotline-item {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--brand-navy);
  text-decoration: none;
}
.hotline-item:hover {
  color: var(--brand-yellow-dark);
}
.zalo-btn-link {
  font-size: 0.95rem;
  font-weight: 700;
  color: #0068ff;
  text-decoration: none;
}
.zalo-btn-link:hover {
  text-decoration: underline;
}

/* Quick Form */
.quick-form-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--shadow-md);
}
.q-form-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--brand-navy-dark);
  margin-bottom: 4px;
}
.q-form-desc {
  font-size: 0.84rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.form-field {
  margin-bottom: 12px;
}
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-body);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: all 0.2s;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--brand-navy);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(13, 59, 102, 0.12);
}

.map-embed-box {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer-simple {
  background: var(--brand-navy-darker);
  color: #94a3b8;
  padding: 30px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.88rem;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #ffffff;
}
.f-img {
  width: 32px;
  height: 32px;
  border-radius: 4px;
  background: #fff;
  padding: 2px;
}

/* ==========================================================================
   Floating Action Buttons
   ========================================================================== */
.floating-quick-bar {
  position: fixed;
  bottom: 24px;
  right: 20px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.float-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  text-decoration: none;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  position: relative;
  transition: transform 0.2s;
}
.float-btn:hover {
  transform: scale(1.1);
}
.float-zalo {
  background: #0068ff;
  animation: pulse-zalo 2s infinite;
  padding: 0;
}
.float-zalo img,
.float-zalo svg {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: block;
}
.float-phone svg {
  width: 24px;
  height: 24px;
}
@keyframes pulse-zalo {
  0% { box-shadow: 0 0 0 0 rgba(0, 104, 255, 0.7); }
  70% { box-shadow: 0 0 0 14px rgba(0, 104, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 104, 255, 0); }
}
.float-phone {
  background: var(--gradient-gold);
  color: #0b1424;
}
.tooltip {
  position: absolute;
  right: 64px;
  background: var(--brand-navy-darker);
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateX(10px);
  transition: all 0.2s;
}
.float-btn:hover .tooltip {
  opacity: 1;
  transform: translateX(0);
}
.pulse-ring {
  animation: pulse-glow 2s infinite;
}
@keyframes pulse-glow {
  0% { box-shadow: 0 0 0 0 rgba(255, 184, 0, 0.7); }
  70% { box-shadow: 0 0 0 14px rgba(255, 184, 0, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 184, 0, 0); }
}

/* Toast */
.toast-wrap {
  position: fixed;
  bottom: 20px;
  left: 20px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast-msg {
  padding: 12px 18px;
  background: var(--brand-navy-dark);
  border-left: 4px solid var(--brand-yellow);
  color: #ffffff;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 992px) {
  .hero-container, .founder-card-box, .contact-card-wrapper {
    grid-template-columns: 1fr;
  }
  .service-cards-grid, .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .card-span-wide {
    grid-column: span 2;
    grid-template-columns: 1fr;
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .topbar-strip {
    display: none;
  }
  .nav-links {
    display: none;
  }
  .mobile-nav-btn {
    display: block;
  }
  .service-cards-grid, .projects-grid {
    grid-template-columns: 1fr;
  }
  .card-span-wide {
    grid-column: span 1;
  }
  .founder-activities-grid, .steps-grid {
    grid-template-columns: 1fr;
  }
  .hero-section {
    padding: 36px 0;
  }
  .hero-main-img {
    height: 260px;
  }
  .contact-card-wrapper {
    padding: 20px;
  }
}