@font-face {
  font-family: 'Nunito';
  src: url('font/nunito/Nunito-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap
}

@font-face {
  font-family: 'Nunito';
  src: url('font/nunito/Nunito-Italic.ttf') format('truetype');
  font-weight: 400;
  font-style: italic;
  font-display: swap
}

@font-face {
  font-family: 'Nunito';
  src: url('font/nunito/Nunito-Light.ttf') format('truetype');
  font-weight: 300;
  font-style: normal;
  font-display: swap
}

@font-face {
  font-family: 'Nunito';
  src: url('font/nunito/Nunito-LightItalic.ttf') format('truetype');
  font-weight: 300;
  font-style: italic;
  font-display: swap
}

@font-face {
  font-family: 'Nunito';
  src: url('font/nunito/Nunito-ExtraLight.ttf') format('truetype');
  font-weight: 200;
  font-style: normal;
  font-display: swap
}

@font-face {
  font-family: 'Nunito';
  src: url('font/nunito/Nunito-ExtraLightItalic.ttf') format('truetype');
  font-weight: 200;
  font-style: italic;
  font-display: swap
}

@font-face {
  font-family: 'Nunito';
  src: url('font/nunito/Nunito-Medium.ttf') format('truetype');
  font-weight: 500;
  font-style: normal;
  font-display: swap
}

@font-face {
  font-family: 'Nunito';
  src: url('font/nunito/Nunito-SemiBold.ttf') format('truetype');
  font-weight: 600;
  font-style: normal;
  font-display: swap
}

@font-face {
  font-family: 'Nunito';
  src: url('font/nunito/Nunito-SemiBoldItalic.ttf') format('truetype');
  font-weight: 600;
  font-style: italic;
  font-display: swap
}

@font-face {
  font-family: 'Nunito';
  src: url('font/nunito/Nunito-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap
}

@font-face {
  font-family: 'Nunito';
  src: url('font/nunito/Nunito-BoldItalic.ttf') format('truetype');
  font-weight: 700;
  font-style: italic;
  font-display: swap
}

@font-face {
  font-family: 'Nunito';
  src: url('font/nunito/Nunito-ExtraBold.ttf') format('truetype');
  font-weight: 800;
  font-style: normal;
  font-display: swap
}

@font-face {
  font-family: 'Nunito';
  src: url('font/nunito/Nunito-Black.ttf') format('truetype');
  font-weight: 900;
  font-style: normal;
  font-display: swap
}

@font-face {
  font-family: 'Nunito';
  src: url('font/nunito/Nunito-BlackItalic.ttf') format('truetype');
  font-weight: 900;
  font-style: italic;
  font-display: swap
}

body {
  font-family: 'Nunito', sans-serif
}

:root {
  --primary: #0c4ae9;
  --primary-dark: #01257d;
  --primary-light: #2865ff;
  --primary-soft: #e8f5ef;
  --primary-glow: rgba(13, 110, 79, 0.12);

  --accent: #0284c7;
  --accent-soft: #e0f2fe;

  --text-main: #131322;
  --text-muted: #4b5063;
  --text-light: #70768a;
  --text-inverse: #ffffff;

  --bg-page: #fbfdfc;
  --bg-surface: #ffffff;
  --bg-alt: #f4f8f5;
  --bg-subtle: #edf3ef;

  --border-subtle: #dce7e1;
  --border-focus: #0d1a6e;

  --shadow-sm: 0 1px 3px rgba(19, 34, 29, 0.05), 0 1px 2px rgba(19, 34, 29, 0.03);
  --shadow-md: 0 4px 12px -2px rgba(19, 34, 29, 0.08), 0 2px 6px -1px rgba(19, 34, 29, 0.04);
  --shadow-lg: 0 12px 28px -4px rgba(19, 34, 29, 0.1), 0 6px 14px -2px rgba(19, 34, 29, 0.05);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --container-max: 1200px;
  --header-height: 76px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Nunito', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--bg-page);
  overflow-x: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding: 84px 0;
  position: relative;
}

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

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

/* Typography Utilities */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px auto;
}

.section-header.text-left {
  text-align: left;
  margin-left: 0;
}

.section-title {
  font-size: clamp(1.85rem, 3.2vw, 2.5rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-main);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  color: var(--text-muted);
  line-height: 1.65;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 26px;
  font-size: 0.9375rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--text-inverse);
  box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(13, 110, 79, 0.22);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-main);
  border-color: var(--border-subtle);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--bg-subtle);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

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

.btn-outline-primary:hover {
  background-color: var(--primary-soft);
  transform: translateY(-2px);
}

/* Accessibility focus state */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 3px;
}

/* ==========================================================================
       2. HEADER & NAVIGATION
       ========================================================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

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

.brand-logo-badge img,
.logo-mark img{
  width: 42px;
  height: 42px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 3px 10px var(--primary-glow);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.brand-name span {
  color: var(--primary-light);
}

.brand-tagline {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  line-height: 1.2;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  position: relative;
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary);
}

.header-cta-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Mobile Nav toggle using pure CSS checkbox hack */
.mobile-menu-toggle {
  display: none;
}

.menu-toggle-label {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
}

.hamburger-icon {
  width: 20px;
  height: 14px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hamburger-icon span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text-main);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* ==========================================================================
       3. HERO SECTION
       ========================================================================== */
.hero-section {
  padding: 64px 0 80px 0;
  background: linear-gradient(180deg, #f3faf6 0%, var(--bg-page) 100%);
  position: relative;
  overflow: hidden;
}

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

.hero-content {
  max-width: 620px;
}

.hero-title {
  font-size: clamp(2.2rem, 4.2vw, 3.25rem);
  font-weight: 800;
  line-height: 1.16;
  color: var(--text-main);
  margin-bottom: 22px;
  letter-spacing: -0.03em;
}

.hero-title em {
  font-style: normal;
  color: var(--primary);
  position: relative;
  display: inline-block;
}

.hero-desc {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
}

.hero-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.pillar-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.pillar-icon {
  width: 22px;
  height: 22px;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.pillar-text {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.35;
}

/* Hero Visual Card */
.hero-visual {
  position: relative;
}

.hero-main-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-subtle);
  position: relative;
  overflow: hidden;
}

.hero-img-wrap {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: #e2ece6;
  position: relative;
}

.hero-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 70, 50, 0.05) 0%, rgba(7, 70, 50, 0.4) 100%);
}

.hero-badge-live {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(255, 255, 255, 0.94);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: var(--shadow-sm);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary-light);
}

/* Floating UI Badges */
.hero-mock-chips {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}

.mock-chip {
  background: var(--bg-alt);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mock-chip-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mock-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #cde4d9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--primary-dark);
  font-size: 0.8125rem;
}

.mock-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-main);
}

.mock-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.mock-chip-right {
  text-align: right;
}

.mock-price {
  font-size: 0.9375rem;
  font-weight: 800;
  color: var(--primary);
}

.mock-status {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  display: inline-block;
}

/* ==========================================================================
       4. SECTION: PA HUER LÀ GÌ?
       ========================================================================== */
.about-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(13, 110, 79, 0.3);
}

.card-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
  line-height: 1.3;
}

.card-text {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.card-list {
  list-style: none;
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.card-list-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.card-list-item svg {
  width: 16px;
  height: 16px;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 3px;
}

/* Highlight Banner in Section */
.highlight-strip {
  margin-top: 48px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: var(--text-inverse);
  border-radius: var(--radius-lg);
  padding: 32px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.highlight-strip-content h3 {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.highlight-strip-content p {
  font-size: 0.9375rem;
  opacity: 0.9;
  line-height: 1.6;
  max-width: 760px;
}

/* ==========================================================================
       5. SECTION: HAI ỨNG DỤNG, MỘT HỆ SINH THÁI
       ========================================================================== */
.ecosystem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}

.app-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.app-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary);
}

.app-box.app-driver::before {
  background: var(--accent);
}

.app-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
  width: fit-content;
}

.app-rider .app-badge {
  background: var(--primary-soft);
  color: var(--primary);
}

.app-driver .app-badge {
  background: var(--accent-soft);
  color: var(--accent);
}

.app-name {
  font-size: 1.85rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--text-main);
}

.app-summary {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.6;
}

.feature-checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
  flex-grow: 1;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9375rem;
  color: var(--text-main);
  line-height: 1.45;
}

.feature-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

.app-driver .feature-check {
  background: var(--accent-soft);
  color: var(--accent);
}

.app-notice {
  font-size: 0.75rem;
  color: var(--text-light);
  margin-top: 14px;
  font-style: italic;
}

/* ==========================================================================
       6. SECTION: CÁCH PA HUER HOẠT ĐỘNG
       ========================================================================== */
.timeline-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  position: relative;
}

.step-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  position: relative;
  box-shadow: var(--shadow-sm);
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  font-size: 1.125rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  box-shadow: 0 4px 10px var(--primary-glow);
}

.step-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
}

.step-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.step-callout-box {
  margin-top: 40px;
  background: var(--bg-surface);
  border-left: 4px solid var(--primary);
  padding: 20px 24px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  box-shadow: var(--shadow-sm);
}

.step-callout-box p {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.6;
}

/* ==========================================================================
       7. SECTION: GIÁ CƯỚC MINH BẠCH
       ========================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}

.pricing-explanation h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 18px;
  color: var(--text-main);
}

.pricing-explanation p {
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.65;
}

.rule-box-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.rule-box {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.rule-box-icon {
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.rule-box-content strong {
  display: block;
  font-size: 0.9375rem;
  color: var(--text-main);
  margin-bottom: 4px;
}

.rule-box-content span {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.formula-panel {
  background: var(--bg-surface);
  border: 2px dashed var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
}

.formula-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--primary-soft);
  color: var(--primary);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
}

.formula-box {
  background: var(--bg-alt);
  border-radius: var(--radius-md);
  padding: 18px;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 24px;
  border: 1px solid var(--border-subtle);
  line-height: 1.5;
}

.pricing-mock-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
  font-size: 0.875rem;
}

.pricing-mock-table th,
.pricing-mock-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

.pricing-mock-table th {
  background: var(--bg-alt);
  color: var(--text-muted);
  font-weight: 700;
  font-size: 0.8125rem;
}

.pricing-mock-table td {
  color: var(--text-main);
}

.pricing-mock-table .disclaimer-row td {
  font-size: 0.75rem;
  color: var(--text-light);
  font-style: italic;
  border-bottom: none;
  padding-top: 14px;
}

/* ==========================================================================
       8. SECTION: VÌ SAO KHÔNG THU HOA HỒNG
       ========================================================================== */
.values-triplet {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.triplet-col {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  box-shadow: var(--shadow-sm);
}

.triplet-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.triplet-badge {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}

.triplet-header h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
}

.triplet-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.triplet-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.triplet-list li svg {
  width: 16px;
  height: 16px;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 3px;
}

/* ==========================================================================
       9. SECTION: AN TOÀN, UY TÍN & TRÁCH NHIỆM
       ========================================================================== */
.safety-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.safety-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  box-shadow: var(--shadow-sm);
}

.safety-card-icon {
  color: var(--primary);
  margin-bottom: 16px;
}

.safety-card h4 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
}

.safety-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
       10. SECTION: NGUỒN LỰC DUY TRÌ NỀN TẢNG
       ========================================================================== */
.sustainability-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 20px;
}

.sustain-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.sustain-tag {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary-dark);
  background: var(--primary-soft);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  width: fit-content;
  margin-bottom: 16px;
}

.sustain-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 14px;
}

.sustain-desc {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 24px;
}

.sustain-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
  flex-grow: 1;
}

.sustain-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-main);
  line-height: 1.5;
}

.sustain-list li svg {
  width: 16px;
  height: 16px;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 3px;
}

/* ==========================================================================
       11. SECTION: PARTICIPATION (DÀNH CHO TÀI XẾ & KHÁCH HÀNG)
       ========================================================================== */
.dual-cta-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.cta-target-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 44px 36px;
  box-shadow: var(--shadow-sm);
}

.cta-target-card.highlight {
  background: linear-gradient(180deg, #f0f8f4 0%, var(--bg-surface) 100%);
  border-color: rgba(13, 110, 79, 0.25);
}

.cta-target-card h3 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
}

.cta-target-card p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 24px;
}

.step-mini-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.step-mini-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.875rem;
  color: var(--text-main);
}

.mini-badge {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 700;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ==========================================================================
       12. SECTION: CÂU HỎI THƯỜNG GẶP (ACCORDION THUẦN HTML/CSS)
       ========================================================================== */
.faq-container {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

details.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

details.faq-item[open] {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

summary.faq-question {
  padding: 20px 24px;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  user-select: none;
}

summary.faq-question::-webkit-details-marker {
  display: none;
}

.faq-icon-arrow {
  width: 20px;
  height: 20px;
  color: var(--primary);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

details.faq-item[open] .faq-icon-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 24px 22px 24px;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.68;
  border-top: 1px solid var(--border-subtle);
  margin-top: 0;
  padding-top: 16px;
}

/* ==========================================================================
       13. SECTION: LIÊN HỆ & GÓP Ý
       ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 48px;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 24px;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-text strong {
  display: block;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.contact-text span {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  font-family: monospace;
}

.contact-groups-chips {
  margin-top: 32px;
}

.contact-groups-chips h4 {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.chips-flex {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip-item {
  font-size: 0.8125rem;
  font-weight: 600;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  color: var(--text-main);
}

/* Form Container */
.form-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-sm);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

.form-label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--bg-page);
  font-size: 0.9375rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
  background: #fff;
}

textarea.form-control {
  resize: vertical;
  min-height: 110px;
}

.form-notice {
  font-size: 0.75rem;
  color: var(--text-light);
  margin-top: 14px;
  line-height: 1.5;
  font-style: italic;
}

/* ==========================================================================
       14. FOOTER
       ========================================================================== */
.footer {
  background-color: #0b1713;
  color: #b0c4bb;
  padding: 72px 0 32px 0;
  border-top: 1px solid #1c2e27;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr 0.9fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}

.footer-brand .brand-name {
  color: #ffffff;
}

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.65;
  margin-top: 16px;
  max-width: 320px;
  color: #9cb5a9;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.footer-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-nav a {
  font-size: 0.875rem;
  color: #9cb5a9;
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--primary-light);
}

.legal-placeholder-box {
  background: #11211b;
  border: 1px solid #1a2f26;
  border-radius: var(--radius-md);
  padding: 14px;
  font-size: 0.8125rem;
  color: #8fa79c;
  line-height: 1.5;
}

.legal-placeholder-box code {
  font-family: monospace;
  color: #5eead4;
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid #1a2f26;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.8125rem;
  color: #799488;
}

/* ==========================================================================
       15. RESPONSIVE DESIGN & MEDIA QUERIES
       ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-visual {
    max-width: 580px;
    margin: 0 auto;
  }

  .about-cards-grid,
  .timeline-steps,
  .values-triplet {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-top {
    grid-template-columns: repeat(2, 1fr);
    gap: 36px;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 68px;
  }

  .section {
    padding: 56px 0;
  }

  .menu-toggle-label {
    display: flex;
  }

  .nav-menu {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    gap: 16px;
    box-shadow: var(--shadow-lg);
    display: none;
  }

  .mobile-menu-toggle:checked~.nav-menu {
    display: flex;
  }

  .header-cta-wrap {
    display: none;
  }

  .hero-pillars {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .ecosystem-grid,
  .sustainability-grid,
  .dual-cta-section,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .about-cards-grid,
  .timeline-steps,
  .values-triplet,
  .safety-grid {
    grid-template-columns: 1fr;
  }

  .highlight-strip {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
  }

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

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

  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta-group .btn {
    width: 100%;
  }

  .pricing-mock-table {
    font-size: 0.8125rem;
  }

  .card,
  .step-card,
  .app-box,
  .sustain-card,
  .cta-target-card,
  .form-box {
    padding: 24px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* HEADER */
.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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


.brand-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  display: block;
  line-height: 1.2;
}

.brand-sub {
  font-size: 12px;
  color: var(--text-muted);
  display: block;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-nav a {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
}

.header-nav a:hover {
  color: var(--primary);
  text-decoration: none;
}

.btn-outline {
  display: inline-block;
  padding: 8px 16px;
  border: 1.5px solid var(--primary);
  color: var(--primary);
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none !important;
  transition: all 0.2s;
}

.btn-outline:hover {
  background: var(--primary);
  color: #ffffff;
}

/* MAIN CONTENT */
.main-content {
  max-width: 900px;
  margin: 40px auto 80px auto;
  padding: 0 24px;
}

/* NOTICE BOX */
.notice-box {
  background: #eff6ff;
  border-left: 4px solid var(--primary);
  padding: 18px 20px;
  border-radius: 0 10px 10px 0;
  margin-bottom: 32px;
  font-size: 15px;
  color: var(--primary-dark);
}

.notice-box p {
  margin-bottom: 8px;
}

.notice-box p:last-child {
  margin-bottom: 0;
}

/* CONTENT SECTIONS */
.doc-section {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 28px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.02);
}

.doc-section h2 {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.step-num {
  width: 32px;
  height: 32px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 800;
  flex-shrink: 0;
}

.doc-section p {
  color: #334155;
  margin-bottom: 14px;
  line-height: 1.7;
}

.doc-section ul {
  margin-left: 20px;
  margin-bottom: 16px;
  color: #334155;
}

.doc-section li {
  margin-bottom: 8px;
  line-height: 1.6;
}

/* FORM STYLES */
.deletion-form-card {
  background: #ffffff;
  border: 2px solid #bae6fd;
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 32px;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.06);
}

.form-header {
  margin-bottom: 24px;
}

.form-header h2 {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 8px;
}

.form-header p {
  color: var(--text-muted);
  font-size: 14px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 700;
  font-size: 14px;
  color: var(--text-main);
  margin-bottom: 8px;
}

.form-group label .required {
  color: #ef4444;
}

.form-control,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--border-color);
  border-radius: 8px;
  font-family: inherit;
  font-size: 15px;
  color: var(--text-main);
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
}

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

.form-textarea {
  resize: vertical;
  min-height: 90px;
}

.form-hint {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--text-muted);
}

.form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  font-size: 14px;
  color: #334155;
  line-height: 1.5;
}

.form-checkbox-label input[type="checkbox"] {
  margin-top: 3px;
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  cursor: pointer;
}

.form-submit-btn {
  width: 100%;
  background: #ef4444;
  color: #ffffff;
  border: none;
  padding: 14px 24px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
  transition: background 0.2s;
  font-family: inherit;
}

.form-submit-btn:hover {
  background: #dc2626;
}

.backend-notice {
  margin-top: 16px;
  padding: 12px 14px;
  background: #f1f5f9;
  border-radius: 8px;
  font-size: 13px;
  color: #64748b;
  display: flex;
  gap: 10px;
  align-items: center;
}


.policy-header {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 36px 32px;
  margin-bottom: 32px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.policy-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 6px;
  margin-bottom: 12px;
}

.policy-title {
  font-size: 30px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
  margin-bottom: 14px;
}

.policy-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 14px;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
}

.policy-meta-item strong {
  color: var(--text-main);
}