/* ==========================================================================
   VINACAD OFFICIAL BRAND DESIGN SYSTEM & STYLES
   Industrial High-Tech Aesthetic with VinaCAD Signature Emerald Brand Green
   ========================================================================== */

:root {
  /* VinaCAD Signature Brand Green Palette */
  --color-brand: #00a859;
  --color-brand-hover: #008f4c;
  --color-brand-dark: #006837;
  --color-brand-vivid: #00c853;
  --color-brand-light: #e8f8f0;
  --color-brand-glow: rgba(0, 168, 89, 0.35);

  /* Legacy alias for full template harmony */
  --color-gold: #00a859;
  --color-gold-hover: #008f4c;
  --color-gold-light: #e8f8f0;
  --color-gold-glow: rgba(0, 168, 89, 0.35);

  --bg-dark-hero: #0f1418;
  --bg-dark-section: #141b22;
  --bg-dark-card: #1c2530;
  --bg-dark-card-hover: #222e3c;
  --bg-darker: #0a0e12;

  --bg-light: #ffffff;
  --bg-light-alt: #f4f8f6;
  --bg-light-card: #ffffff;

  --text-dark: #12181f;
  --text-dark-muted: #556575;
  --text-light: #ffffff;
  --text-light-muted: #9bb0c4;

  --border-dark: rgba(255, 255, 255, 0.08);
  --border-dark-strong: rgba(255, 255, 255, 0.16);
  --border-light: #e1eae5;
  --border-brand: #00a859;

  /* Typography */
  --font-display: 'Barlow Condensed', 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Transitions & Radii */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-dark: 0 10px 30px rgba(0, 0, 0, 0.45);
  --shadow-light: 0 8px 24px rgba(0, 168, 89, 0.06);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text-dark);
  background-color: var(--bg-light);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

ul {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.text-gold, .text-brand {
  color: var(--color-brand-vivid) !important;
}

.highlight {
  color: var(--color-brand-vivid);
}

/* Section Common Styles */
.section {
  padding: 96px 0;
  position: relative;
}

.section-dark {
  background-color: var(--bg-dark-section);
  color: var(--text-light);
}

.section-darker {
  background-color: var(--bg-darker);
  color: var(--text-light);
}

.section-light {
  background-color: var(--bg-light);
  color: var(--text-dark);
}

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

/* Section Header */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-brand);
  margin-bottom: 12px;
}

.section-tag::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 3px;
  background-color: var(--color-brand);
  border-radius: 2px;
}

.section-tag.center-tag {
  justify-content: center;
}

.section-tag.center-tag::after {
  content: '';
  display: inline-block;
  width: 24px;
  height: 3px;
  background-color: var(--color-brand);
  border-radius: 2px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 18px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-dark-muted);
  max-width: 680px;
  margin-bottom: 48px;
}

.section-dark .section-subtitle {
  color: var(--text-light-muted);
}

.text-center {
  text-align: center;
}

.text-center .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.btn-gold, .btn-brand {
  background-color: var(--color-brand);
  color: #ffffff;
  border-color: var(--color-brand);
  box-shadow: 0 4px 14px rgba(0, 168, 89, 0.3);
}

.btn-gold:hover, .btn-brand:hover {
  background-color: var(--color-brand-hover);
  border-color: var(--color-brand-hover);
  box-shadow: 0 6px 20px var(--color-brand-glow);
  transform: translateY(-2px);
  color: #ffffff;
}

.btn-outline-light {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--text-light);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline-light:hover {
  background-color: rgba(0, 168, 89, 0.15);
  border-color: var(--color-brand);
  color: var(--color-brand-vivid);
  transform: translateY(-2px);
}

.btn-outline-dark {
  background-color: transparent;
  color: var(--color-brand-dark);
  border-color: var(--color-brand);
}

.btn-outline-dark:hover {
  background-color: var(--color-brand);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-block {
  width: 100%;
}

.btn-arrow {
  font-size: 1.2rem;
  transition: transform var(--transition-fast);
}

.btn:hover .btn-arrow {
  transform: translateX(4px);
}

/* ==========================================================================
   NAVIGATION BAR
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(15, 20, 24, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-dark);
  transition: all var(--transition-normal);
}

.navbar-container {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  padding: 0 24px;
  max-width: 1440px;
  margin: 0 auto;
  min-height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

/* 3D Isometric VinaCAD Logo Cube */
.logo-symbol {
  width: 36px;
  height: 36px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-symbol svg {
  width: 100%;
  height: 100%;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 900;
  letter-spacing: 0.5px;
  color: var(--text-light);
}

.logo-text span {
  color: var(--color-brand);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-light-muted);
  padding: 8px 0;
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-light);
}

.nav-link.active::after, .nav-link:hover::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2.5px;
  background-color: var(--color-brand);
  border-radius: 2px;
}

/* Header Contact Pill */
.nav-contact-pill {
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: var(--color-brand);
  color: #ffffff;
  padding: 0 22px;
  margin: 10px 0;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background-color var(--transition-fast);
  box-shadow: 0 4px 12px rgba(0, 168, 89, 0.3);
}

.nav-contact-pill:hover {
  background-color: var(--color-brand-hover);
  color: #ffffff;
}

.nav-contact-icon {
  font-size: 1.25rem;
  color: #ffffff;
}

.nav-contact-info {
  display: flex;
  flex-direction: column;
}

.nav-contact-number {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 0.5px;
  color: #ffffff;
}

.nav-contact-label {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: rgba(255, 255, 255, 0.85);
}

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

/* ==========================================================================
   HERO SECTION (High-Contrast, Clean & High-Legibility Polish)
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 136px 0 80px 0;
  background-color: #0b0f14;
  background-image: 
    radial-gradient(ellipse at 15% 40%, rgba(0, 168, 89, 0.18) 0%, transparent 65%),
    radial-gradient(circle at 85% 30%, rgba(0, 200, 83, 0.08) 0%, transparent 50%),
    linear-gradient(to right, #0b0f14 0%, #0d1318 42%, rgba(13, 19, 24, 0.9) 68%, rgba(13, 19, 24, 0.45) 100%),
    url('assets/images/hero-bg.jpg');
  background-size: cover;
  background-position: right center;
  background-repeat: no-repeat;
  color: var(--text-light);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.hero-content {
  max-width: 660px;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 168, 89, 0.14);
  border: 1px solid rgba(0, 200, 83, 0.35);
  padding: 7px 16px;
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #00e676;
  margin-bottom: 24px;
  border-radius: 20px;
  box-shadow: 0 4px 16px rgba(0, 168, 89, 0.15);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: #00e676;
  border-radius: 50%;
  box-shadow: 0 0 10px #00e676;
  animation: pulse-dot 1.8s infinite ease-in-out;
}

@keyframes pulse-dot {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.6; }
  100% { transform: scale(1); opacity: 1; }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5vw, 4.4rem);
  font-weight: 900;
  line-height: 1.08;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
  color: #ffffff;
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.8);
}

.hero-highlight-box {
  display: inline-block;
  color: #00e676;
  background: linear-gradient(135deg, #00e676 0%, #00b0ff 120%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 2px 14px rgba(0, 230, 118, 0.35));
}

.hero-title-divider {
  width: 72px;
  height: 4px;
  background: linear-gradient(90deg, #00c853, transparent);
  margin-bottom: 24px;
  border-radius: 2px;
}

.hero-desc {
  font-size: 1.15rem;
  line-height: 1.7;
  color: #d1dde8;
  margin-bottom: 36px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.6);
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 38px;
}

.hero-actions .btn {
  padding: 16px 30px;
  font-size: 1.08rem;
}

.hero-actions .btn-outline-light {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(8px);
  color: #ffffff;
}

.hero-actions .btn-outline-light:hover {
  background: rgba(0, 168, 89, 0.2);
  border-color: #00e676;
  color: #00e676;
}

.hero-trust-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 0.92rem;
  font-weight: 600;
  color: #e1ebf5;
  background: rgba(255, 255, 255, 0.04);
  padding: 7px 14px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(6px);
}

.trust-icon-wrap {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(0, 200, 83, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #00e676;
}

.trust-icon-wrap svg {
  width: 12px;
  height: 12px;
}

/* Right CAD Preview UI Window */
.hero-preview-col {
  position: relative;
  z-index: 2;
}

.hero-preview-card {
  background: rgba(18, 25, 33, 0.92);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 200, 83, 0.35);
  border-radius: 10px;
  padding: 14px;
  box-shadow: 0 25px 60px -10px rgba(0, 0, 0, 0.8), 0 0 35px rgba(0, 168, 89, 0.25);
  position: relative;
  transition: all var(--transition-normal);
}

.hero-preview-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 230, 118, 0.65);
  box-shadow: 0 32px 70px -10px rgba(0, 0, 0, 0.9), 0 0 50px rgba(0, 168, 89, 0.35);
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 6px 12px 6px;
  margin-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.window-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.window-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.dot-red { background-color: #ff5f56; }
.dot-yellow { background-color: #ffbd2e; }
.dot-green { background-color: #27c93f; }

.preview-title {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: #c4d3e0;
}

.preview-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  color: #00e676;
}

.preview-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #00e676;
  box-shadow: 0 0 10px #00e676;
}

.preview-image-wrap {
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  cursor: pointer;
}

.preview-image-wrap img {
  width: 100%;
  height: auto;
  border-radius: 4px;
  transition: transform var(--transition-normal);
}

.preview-image-wrap:hover img {
  transform: scale(1.02);
}

.preview-tag-float {
  position: absolute;
  bottom: 14px;
  right: 14px;
  background: rgba(11, 15, 20, 0.94);
  border: 1px solid #00e676;
  padding: 8px 16px;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: #00e676;
  border-radius: 4px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.6);
}

/* ==========================================================================
   SECTION 2: FEATURES & WHAT WE DO (Nền Sáng)
   ========================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
}

.feature-item {
  text-align: center;
  padding: 24px 16px;
  transition: transform var(--transition-fast);
  border-radius: var(--radius-sm);
}

.feature-item:hover {
  transform: translateY(-6px);
  background-color: var(--color-brand-light);
}

.feature-icon-box {
  width: 68px;
  height: 68px;
  margin: 0 auto 18px auto;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-brand-dark);
}

.feature-icon-box svg {
  width: 48px;
  height: 48px;
  stroke-width: 1.7;
}

.feature-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
  color: var(--text-dark);
}

.feature-desc {
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--text-dark-muted);
}

/* ==========================================================================
   SECTION 3: PAIN POINTS & VIETNAM MAP (Nền Tối)
   ========================================================================== */
.projects-section {
  background-color: var(--bg-dark-section);
  border-top: 1px solid var(--border-dark);
  border-bottom: 1px solid var(--border-dark);
}

.projects-layout {
  display: grid;
  grid-template-columns: 1fr 0.8fr 1fr;
  gap: 36px;
  align-items: center;
}

.pain-left-col .section-title {
  margin-bottom: 16px;
}

.pain-cards-row {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 28px;
}

.pain-point-mini-card {
  background: var(--bg-dark-card);
  border-left: 3px solid #e63946;
  padding: 14px 18px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.pain-point-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 4px;
}

.pain-point-desc {
  font-size: 0.85rem;
  color: var(--text-light-muted);
}

/* Official Multi-Province Vietnam Map Styles */
.map-centerpiece {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 20px;
}

.map-svg-wrap {
  width: 100%;
  max-width: 360px;
  position: relative;
}

.vietnam-official-svg {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 0 25px rgba(0, 168, 89, 0.25));
}

.vn-province-path {
  fill: #1e2833;
  stroke: var(--color-brand);
  stroke-width: 1.2;
  stroke-linejoin: round;
  stroke-linecap: round;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
}

.vn-province-path:hover {
  fill: var(--color-brand);
  fill-opacity: 0.55;
  stroke: #ffffff;
  stroke-width: 2.2;
  filter: drop-shadow(0 0 10px rgba(0, 168, 89, 0.9));
}

.archipelago-box {
  fill: rgba(0, 168, 89, 0.06);
  stroke: var(--color-brand);
  stroke-width: 1.5;
  stroke-dasharray: 6 4;
}

.archipelago-title {
  fill: var(--color-brand-vivid);
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 2px;
}

.archipelago-sub {
  fill: #9bb0c4;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
}

.map-city-callout rect {
  fill: #0f1418;
  stroke: var(--color-brand);
  stroke-width: 2;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.5));
}

.map-city-callout text {
  fill: var(--color-brand-vivid);
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 1px;
}

.map-hub-marker circle:first-child {
  animation: pulse-hub 2s infinite ease-in-out;
}

@keyframes pulse-hub {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.75; }
  100% { transform: scale(1); opacity: 1; }
}

/* Right Solution List with circular icons */
.solution-list-wrap {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.solution-badge-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px;
  background: var(--bg-dark-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-dark);
  transition: border-color var(--transition-fast);
}

.solution-badge-item:hover {
  border-color: var(--color-brand);
}

.solution-badge-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: 50%;
  background: rgba(0, 168, 89, 0.15);
  border: 1px solid var(--color-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-brand-vivid);
}

.solution-badge-icon svg {
  width: 22px;
  height: 22px;
}

.solution-badge-content h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-light);
}

.solution-badge-content p {
  font-size: 0.85rem;
  color: var(--text-light-muted);
}

/* ==========================================================================
   SECTION 4: COMMITMENT & ENGINEER BANNER
   ========================================================================== */
.commitment-section {
  padding: 0;
  background-color: #ffffff;
}

.commitment-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: stretch;
}

.commitment-image {
  position: relative;
  min-height: 480px;
}

.commitment-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.commitment-image-overlay {
  position: absolute;
  top: 24px;
  left: 24px;
  background: rgba(15, 20, 24, 0.88);
  backdrop-filter: blur(8px);
  padding: 10px 18px;
  border-left: 3px solid var(--color-brand);
  color: var(--text-light);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 1px;
}

.commitment-content {
  padding: 72px 56px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 36px;
}

.pillar-item {
  text-align: center;
}

.pillar-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 12px auto;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-brand);
}

.pillar-icon svg {
  width: 42px;
  height: 42px;
}

.pillar-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.pillar-desc {
  font-size: 0.78rem;
  color: var(--text-dark-muted);
  line-height: 1.4;
}

/* ==========================================================================
   SECTION 5: COMPARISON & PRICING
   ========================================================================== */
.comparison-table-wrap {
  overflow-x: auto;
  margin-bottom: 72px;
  box-shadow: var(--shadow-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  background-color: #ffffff;
}

.comparison-table th, .comparison-table td {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-light);
}

.comparison-table th {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background-color: var(--bg-dark-section);
  color: var(--text-light);
}

.comparison-table th.highlight-col {
  background-color: var(--color-brand);
  color: #ffffff;
}

.comparison-table td.highlight-col {
  background-color: #f2faf5;
  font-weight: 600;
  color: var(--text-dark);
}

.comparison-table tr:hover td {
  background-color: #f9fbfd;
}

.comparison-table tr:hover td.highlight-col {
  background-color: #e5f7ed;
}

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.pricing-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-light);
}

.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 36px rgba(0, 168, 89, 0.1);
}

.pricing-card.featured {
  border: 2px solid var(--color-brand);
  background: #ffffff;
  transform: scale(1.03);
}

.pricing-card.featured:hover {
  transform: scale(1.03) translateY(-6px);
}

.pricing-ribbon {
  position: absolute;
  top: -14px;
  right: 24px;
  background: var(--color-brand);
  color: #ffffff;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: var(--radius-sm);
}

.pricing-plan-name {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.pricing-plan-target {
  font-size: 0.9rem;
  color: var(--text-dark-muted);
  margin-bottom: 24px;
}

.pricing-plan-price {
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-light);
}

.price-val {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--color-brand-dark);
}

.price-unit {
  font-size: 0.9rem;
  color: var(--text-dark-muted);
}

.pricing-features-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-dark);
}

.pricing-feature-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-brand);
  min-width: 18px;
}

/* ==========================================================================
   SECTION 6: TESTIMONIALS
   ========================================================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-bottom: 48px;
}

.testimonial-card {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  border-left: 4px solid var(--color-brand);
  border-radius: var(--radius-sm);
  padding: 32px;
  position: relative;
}

.quote-icon {
  font-family: var(--font-display);
  font-size: 3rem;
  line-height: 1;
  color: var(--color-brand);
  opacity: 0.5;
  margin-bottom: 8px;
}

.testimonial-quote {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-light);
  font-style: italic;
  margin-bottom: 24px;
}

.author-info {
  display: flex;
  align-items: center;
  gap: 14px;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-brand);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
}

.author-details h4 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-light);
}

.author-details p {
  font-size: 0.85rem;
  color: var(--text-light-muted);
}

.client-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 40px;
  padding-top: 36px;
  border-top: 1px solid var(--border-dark);
  opacity: 0.75;
}

.client-logo-item {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--text-light-muted);
}

/* ==========================================================================
   SECTION 7: CONTACT & LEAD FORM
   ========================================================================== */
.contact-section {
  background-color: var(--bg-dark-hero);
  border-top: 1px solid var(--border-dark);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: stretch;
}

.contact-left-card {
  position: relative;
  background-image: linear-gradient(135deg, rgba(15, 20, 24, 0.92) 0%, rgba(15, 20, 24, 0.65) 100%), url('assets/images/contact-bg.jpg');
  background-size: cover;
  background-position: center;
  border-radius: var(--radius-md);
  padding: 48px 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--border-dark-strong);
  overflow: hidden;
}

.contact-left-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 100%;
  background-color: var(--color-brand);
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 32px;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.contact-info-icon {
  width: 38px;
  height: 38px;
  min-width: 38px;
  background: rgba(0, 168, 89, 0.15);
  border: 1px solid var(--color-brand);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-brand-vivid);
}

.contact-info-icon svg {
  width: 18px;
  height: 18px;
}

.contact-info-text strong {
  display: block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-light-muted);
  letter-spacing: 0.5px;
}

.contact-info-text span {
  font-size: 1rem;
  color: var(--text-light);
  font-weight: 600;
}

/* Contact Right Form */
.contact-form-card {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark-strong);
  border-radius: var(--radius-md);
  padding: 40px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-bottom: 20px;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-light-muted);
  margin-bottom: 6px;
}

.form-label span {
  color: var(--color-brand-vivid);
}

.form-control {
  width: 100%;
  background: rgba(15, 20, 24, 0.85);
  border: 1px solid var(--border-dark-strong);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text-light);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-brand);
  box-shadow: 0 0 0 2px var(--color-brand-glow);
}

.form-control::placeholder {
  color: #55687d;
}

.form-privacy-note {
  font-size: 0.82rem;
  color: var(--text-light-muted);
  margin-top: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ==========================================================================
   SECTION 8: FAQ ACCORDION
   ========================================================================== */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  background-color: #ffffff;
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: var(--color-brand);
}

.faq-header {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  cursor: pointer;
}

.faq-question {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-dark);
}

.faq-icon {
  width: 24px;
  height: 24px;
  min-width: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-brand);
  transition: transform var(--transition-normal);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out;
  padding: 0 24px;
}

.faq-item.active .faq-body {
  padding: 0 24px 20px 24px;
}

.faq-answer {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-dark-muted);
  border-top: 1px solid var(--border-light);
  padding-top: 14px;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  background-color: var(--bg-darker);
  color: var(--text-light);
  padding: 72px 0 28px 0;
  border-top: 1px solid var(--border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-light-muted);
  margin-top: 14px;
  max-width: 320px;
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 20px;
  position: relative;
  display: inline-block;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 24px;
  height: 2px;
  background-color: var(--color-brand);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-light-muted);
}

.footer-links a:hover {
  color: var(--color-brand-vivid);
  padding-left: 4px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 28px;
  border-top: 1px solid var(--border-dark);
  font-size: 0.85rem;
  color: var(--text-light-muted);
}

/* ==========================================================================
   FLOATING WIDGETS & MODAL
   ========================================================================== */
.floating-hotline {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.float-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
  transition: transform var(--transition-fast);
  color: #ffffff;
}

.float-btn:hover {
  transform: scale(1.1);
}

.float-zalo {
  background-color: #0068ff;
  font-weight: 900;
  font-size: 0.8rem;
  letter-spacing: -0.5px;
}

.float-phone {
  background-color: var(--color-brand);
  color: #ffffff;
}

/* Modal */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  padding: 20px;
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-dark-card);
  border: 1px solid var(--color-brand);
  border-radius: var(--radius-md);
  max-width: 600px;
  width: 100%;
  padding: 36px;
  color: var(--text-light);
  position: relative;
  text-align: center;
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.modal-backdrop.active .modal-content {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-light-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(0, 168, 89, 0.15);
  border: 2px solid var(--color-brand);
  color: var(--color-brand-vivid);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px auto;
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .projects-layout {
    grid-template-columns: 1fr;
  }

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

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

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

  .pricing-card.featured {
    transform: none;
  }

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

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

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--bg-dark-hero);
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--border-dark);
  }

  .nav-menu.open {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .nav-contact-pill {
    display: none;
  }

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

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

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

  .form-group.full-width {
    grid-column: span 1;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

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