/* ========================================
   DLA LANDING PAGES — DESIGN SYSTEM v1.0
   Trường ĐH Kinh tế Công nghiệp Long An
   ======================================== */

/* ① GOOGLE FONTS */
@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@300;400;500;600;700;800&family=Inter:wght@400;500;600&display=swap');

/* ② COLOR TOKENS */
:root {
  /* Brand */
  --color-primary: #1a5fa8;
  --color-primary-dark: #134a84;
  --color-primary-light: #2d7dd2;
  --color-secondary: #e8a020;
  --color-secondary-dark: #c8851a;
  --color-cta: #d63031;
  --color-cta-dark: #b52626;
  --color-cta-hover: #e84040;

  /* Neutrals */
  --color-dark: #0f1724;
  --color-dark-2: #1e2a3b;
  --color-dark-3: #2d3f55;
  --color-mid: #4a5f78;
  --color-muted: #8096b0;
  --color-border: #d0dae6;
  --color-light: #f4f7fb;
  --color-white: #ffffff;

  /* Semantic */
  --color-success: #27ae60;
  --color-warning: #f39c12;
  --color-danger: #e74c3c;
  --color-info: #2980b9;

  /* Group accent colors */
  --color-cq: #1a5fa8;
  /* ĐH Chính Quy — blue */
  --color-sdh: #6c3483;
  /* Sau ĐH — purple */
  --color-tx: #1a7a4a;
  /* Thường Xuyên — green */
  --color-txa: #c0392b;
  /* Từ Xa — red */

  /* ③ TYPOGRAPHY */
  --font-primary: 'Be Vietnam Pro', 'Segoe UI', system-ui, sans-serif;
  --font-secondary: 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'Courier New', monospace;

  /* Font sizes — fluid */
  --fs-xs: 0.75rem;
  /* 12px */
  --fs-sm: 0.875rem;
  /* 14px */
  --fs-base: 1rem;
  /* 16px */
  --fs-md: 1.125rem;
  /* 18px */
  --fs-lg: 1.25rem;
  /* 20px */
  --fs-xl: 1.5rem;
  /* 24px */
  --fs-2xl: 1.875rem;
  /* 30px */
  --fs-3xl: 2.25rem;
  /* 36px */
  --fs-4xl: clamp(2rem, 4vw, 3rem);
  --fs-hero: clamp(2.2rem, 5vw, 3.75rem);

  /* Font weights */
  --fw-light: 300;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-black: 800;

  /* Line heights */
  --lh-tight: 1.2;
  --lh-snug: 1.4;
  --lh-normal: 1.6;
  --lh-loose: 1.8;

  /* ④ SPACING */
  --sp-1: 0.25rem;
  /* 4px  */
  --sp-2: 0.5rem;
  /* 8px  */
  --sp-3: 0.75rem;
  /* 12px */
  --sp-4: 1rem;
  /* 16px */
  --sp-5: 1.25rem;
  /* 20px */
  --sp-6: 1.5rem;
  /* 24px */
  --sp-8: 2rem;
  /* 32px */
  --sp-10: 2.5rem;
  /* 40px */
  --sp-12: 3rem;
  /* 48px */
  --sp-16: 4rem;
  /* 64px */
  --sp-20: 5rem;
  /* 80px */
  --sp-24: 6rem;
  /* 96px */

  /* ⑤ BORDERS & RADIUS */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* ⑥ SHADOWS */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10), 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12), 0 4px 8px rgba(0, 0, 0, 0.06);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15), 0 8px 16px rgba(0, 0, 0, 0.08);
  --shadow-cta: 0 8px 25px rgba(214, 48, 49, 0.40);
  --shadow-card: 0 4px 20px rgba(26, 95, 168, 0.08);

  /* ⑦ TRANSITIONS */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-spring: 300ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* ⑧ LAYOUT */
  --container-max: 1280px;
  --container-wide: 1440px;
  --section-py: clamp(3rem, 6vw, 6rem);
  --nav-height: 70px;
}

/* ⑨ RESET & BASE */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-primary);
  font-size: var(--fs-base);
  font-weight: var(--fw-regular);
  line-height: var(--lh-normal);
  color: var(--color-dark-2);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  width: 100%;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
  word-wrap: break-word;
  hyphens: auto;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

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

/* ⑩ TYPOGRAPHY UTILITIES */
.text-hero {
  font-size: var(--fs-hero);
  font-weight: var(--fw-black);
  line-height: var(--lh-tight);
}

.text-h1 {
  font-size: var(--fs-4xl);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
}

.text-h2 {
  font-size: var(--fs-3xl);
  font-weight: var(--fw-bold);
  line-height: var(--lh-snug);
}

.text-h3 {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-snug);
}

.text-h4 {
  font-size: var(--fs-xl);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-normal);
}

.text-lg {
  font-size: var(--fs-lg);
  line-height: var(--lh-loose);
}

.text-md {
  font-size: var(--fs-md);
  line-height: var(--lh-normal);
}

.text-sm {
  font-size: var(--fs-sm);
  line-height: var(--lh-normal);
}

.text-xs {
  font-size: var(--fs-xs);
  line-height: var(--lh-normal);
}

.text-primary {
  color: var(--color-primary);
}

.text-secondary {
  color: var(--color-secondary);
}

.text-cta {
  color: var(--color-cta);
}

.text-muted {
  color: var(--color-muted);
}

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

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

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

.font-bold {
  font-weight: var(--fw-bold);
}

.font-semibold {
  font-weight: var(--fw-semibold);
}

/* ⑪ LAYOUT UTILITIES */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--sp-6);
}

@media (max-width: 768px) {
  .container {
    padding-inline: var(--sp-4);
  }
}

.section {
  padding-block: var(--section-py);
}

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

.section--dark {
  background-color: var(--color-dark);
  color: var(--color-white);
}

.section--primary {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-white);
}

/* Grid */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-6);
}

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* Flex */
.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-col {
  flex-direction: column;
}

.gap-4 {
  gap: var(--sp-4);
}

.gap-6 {
  gap: var(--sp-6);
}

.gap-8 {
  gap: var(--sp-8);
}

/* ⑫ SECTION HEADER */
.section-header {
  text-align: center;
  margin-bottom: var(--sp-12);
}

.section-header .eyebrow {
  display: inline-block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: rgba(26, 95, 168, 0.08);
  padding: var(--sp-1) var(--sp-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--sp-4);
}

.section-header h2 {
  font-size: var(--fs-3xl);
  font-weight: var(--fw-bold);
  color: var(--color-dark);
  margin-bottom: var(--sp-4);
  line-height: var(--lh-tight);
}

.section-header p {
  font-size: var(--fs-md);
  color: var(--color-mid);
  max-width: 640px;
  margin-inline: auto;
  line-height: var(--lh-loose);
}

.section--dark .section-header h2 {
  color: var(--color-white);
}

.section--dark .section-header p {
  color: rgba(255, 255, 255, 0.75);
}

.section--dark .eyebrow {
  background: rgba(255, 255, 255, 0.15);
  color: var(--color-white);
}

.section--primary .section-header h2 {
  color: var(--color-white);
}

.section--primary .section-header p {
  color: rgba(255, 255, 255, 0.85);
}

/* ⑬ BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-8);
  border-radius: var(--radius-full);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  line-height: 1;
  transition: all var(--transition-base);
  white-space: nowrap;
  min-height: 48px;
  cursor: pointer;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(26, 95, 168, 0.30);
}

.btn--primary:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(26, 95, 168, 0.40);
}

.btn--cta {
  background: var(--color-cta);
  color: var(--color-white);
  box-shadow: var(--shadow-cta);
  font-size: var(--fs-md);
  padding: var(--sp-4) var(--sp-10);
}

.btn--cta:hover {
  background: var(--color-cta-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(214, 48, 49, 0.50);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

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

.btn--outline-white {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255, 255, 255, 0.7);
}

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

.btn--secondary {
  background: var(--color-secondary);
  color: var(--color-dark);
}

.btn--secondary:hover {
  background: var(--color-secondary-dark);
  transform: translateY(-2px);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-white);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.22);
}

.btn--sm {
  padding: var(--sp-2) var(--sp-5);
  font-size: var(--fs-sm);
  min-height: 36px;
}

.btn--lg {
  padding: var(--sp-5) var(--sp-12);
  font-size: var(--fs-lg);
}

.btn svg,
.btn i {
  font-size: 1.1em;
  flex-shrink: 0;
}

/* ⑭ BADGE */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.badge--primary {
  background: rgba(26, 95, 168, 0.12);
  color: var(--color-primary);
}

.badge--success {
  background: rgba(39, 174, 96, 0.12);
  color: var(--color-success);
}

.badge--warning {
  background: rgba(243, 156, 18, 0.12);
  color: var(--color-warning);
}

.badge--hot {
  background: var(--color-cta);
  color: var(--color-white);
}

/* ⑮ ANIMATIONS */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(32px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-32px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes countUp {
  from {
    opacity: 0;
    transform: scale(0.8);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.05);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }

  100% {
    background-position: 200% 0;
  }
}

.animate-fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-delay-1 {
  transition-delay: 0.1s;
}

.animate-delay-2 {
  transition-delay: 0.2s;
}

.animate-delay-3 {
  transition-delay: 0.3s;
}

.animate-delay-4 {
  transition-delay: 0.4s;
}

.animate-delay-5 {
  transition-delay: 0.5s;
}

/* ⑯ CARD */
.card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card__body {
  padding: var(--sp-6);
}

.card__header {
  padding: var(--sp-6);
  border-bottom: 1px solid var(--color-border);
}

.card__footer {
  padding: var(--sp-4) var(--sp-6);
  background: var(--color-light);
}

/* ⑰ FORM ELEMENTS */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.form-label {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-dark-2);
}

.form-label .required {
  color: var(--color-cta);
  margin-left: 2px;
}

.form-control {
  width: 100%;
  padding: var(--sp-3) var(--sp-4);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--fs-base);
  font-family: var(--font-primary);
  color: var(--color-dark);
  background: var(--color-white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 48px;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 95, 168, 0.12);
}

.form-control.error {
  border-color: var(--color-danger);
}

.form-control.success {
  border-color: var(--color-success);
}

.form-error {
  font-size: var(--fs-xs);
  color: var(--color-danger);
  display: none;
}

.form-error.visible {
  display: block;
}

/* ⑱ DIVIDER */
.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin-block: var(--sp-8);
}

/* ⑲ BREADCRUMB */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-sm);
  color: var(--color-muted);
}

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

.breadcrumb .separator {
  color: var(--color-border);
}

.breadcrumb .current {
  color: var(--color-dark-2);
  font-weight: var(--fw-medium);
}

/* ⑳ SKIP LINK (Accessibility) */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--sp-4);
  background: var(--color-primary);
  color: white;
  padding: var(--sp-2) var(--sp-4);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  z-index: 9999;
  font-weight: var(--fw-semibold);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

/* ㉑ RESPONSIVE HELPERS */
.hide-mobile {
  display: block;
}

.show-mobile {
  display: none;
}

@media (max-width: 768px) {
  .hide-mobile {
    display: none;
  }

  .show-mobile {
    display: block;
  }
}

/* ㉒ PREFERS REDUCED MOTION */
@media (prefers-reduced-motion: reduce) {

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

  html {
    scroll-behavior: auto;
  }
}

/* ── WHY DLA SECTION ── */
.why-dla {
  background: rgb(184, 16, 31);
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}

.why-dla::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(26, 95, 168, .12) 0%, transparent 60%);
}

.why-dla .section-header h2 {
  color: white;
}

.why-dla .section-header p {
  color: rgba(255, 255, 255, .7);
}

.why-dla .eyebrow {
  background: rgba(255, 255, 255, .1) !important;
  color: rgba(255, 255, 255, .9) !important;
}

.why-dla-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  position: relative;
}

@media(max-width:768px) {
  .why-dla-grid {
    grid-template-columns: 1fr
  }
}

.why-dla-card {
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .10);
  border-radius: 16px;
  padding: 2rem;
  transition: all .25s ease;
}

.why-dla-card:hover {
  background: rgba(255, 255, 255, .08);
  border-color: rgba(255, 255, 255, .20);
  transform: translateY(-4px);
}

.why-dla-card__icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.why-dla-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: white;
  margin-bottom: .625rem;
}

.why-dla-card__desc {
  font-size: .875rem;
  color: rgba(255, 255, 255, .65);
  line-height: 1.65;
}

/* ══ TÀI CHÍNH & CHÍNH SÁCH ══ */

.policy-section {
  background: #fff;
  padding: 5rem 0;
}

.policy-header {
  text-align: center;
  margin-bottom: 4rem;
}

.policy-header .eyebrow {
  color: #1a5fa8;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
  display: block;
}

.policy-header h2 {
  font-size: 2.5rem;
  font-weight: 800;
  color: #0f1724;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.policy-header p {
  color: #64748b;
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

.policy-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 3rem;
  align-items: start;
}

.tuition-card {
  background: linear-gradient(145deg, #1a5fa8, #0f3a6a);
  border-radius: 20px;
  padding: 2.5rem 2rem;
  color: white;
  box-shadow: 0 20px 40px rgba(26, 95, 168, 0.2);
  position: sticky;
  top: 100px;
}

.tuition-card .t-label {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 1rem;
  opacity: 0.9;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tuition-card .t-price {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.5rem;
  color: #f8fafc;
}

.tuition-card .t-price span {
  font-size: 1.5rem;
  font-weight: 600;
}

.tuition-card .t-desc {
  font-size: 0.95rem;
  opacity: 0.8;
  margin-bottom: 2rem;
}

.tuition-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.tuition-card li {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.tuition-card li i {
  color: #4ade80;
  margin-top: 4px;
  font-size: 1.1rem;
}

.tuition-card li span {
  font-size: 0.95rem;
  line-height: 1.5;
  opacity: 0.95;
}

.policy-accordions {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.accordion-section h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: #0f1724;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-transform: uppercase;
}

.accordion-group {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.modern-details {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.modern-details[open] {
  background: white;
  border-color: #cbd5e1;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
}

.modern-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: #1e293b;
  cursor: pointer;
  list-style: none;
  transition: background 0.2s ease;
}

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

.modern-summary:hover {
  background: rgba(0, 0, 0, 0.02);
}

.modern-summary .summary-content {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.modern-summary .icon-box {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(26, 95, 168, 0.1);
  color: #1a5fa8;
  font-size: 1.1rem;
}

.modern-details[open] .modern-summary .icon-box {
  background: #1a5fa8;
  color: white;
}

.modern-summary .chevron {
  color: #94a3b8;
  transition: transform 0.3s ease;
}

.modern-details[open] .modern-summary .chevron {
  transform: rotate(180deg);
  color: #1a5fa8;
}

.modern-details-content {
  padding: 0 1.5rem 1.5rem 4.75rem;
  color: #475569;
  line-height: 1.6;
  font-size: 0.95rem;
  animation: fadeInDown 0.3s ease-out;
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 991px) {
  .policy-grid {
    grid-template-columns: 1fr;
  }

  .tuition-card {
    position: static;
    margin-bottom: 1rem;
  }
}

@media (max-width: 576px) {
  .modern-details-content {
    padding-left: 1.5rem;
    padding-top: 0.5rem;
  }

  .modern-summary {
    align-items: flex-start;
  }

  .modern-summary .chevron {
    margin-top: 5px;
  }
}

/*Học bổng*/
#hocbong {
  padding: 5rem 0;
  background: #f8fafc;
  position: relative;
  overflow: hidden;
}

#hocbong::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: radial-gradient(circle at top right, rgba(26, 95, 168, 0.04), transparent 40%),
    radial-gradient(circle at bottom left, rgba(214, 48, 49, 0.03), transparent 40%);
  pointer-events: none;
}

#hocbong .section-header {
  text-align: center;
  margin-bottom: 3.5rem;
  position: relative;
  z-index: 1;
}

#hocbong .section-header h2 {
  color: #0f1724;
  font-size: 2.25rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

#hocbong .section-header p {
  color: #64748b;
  font-size: 1.1rem;
}

.sc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  position: relative;
  z-index: 1;
}

@media (max-width: 991px) {
  .sc-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .sc-grid {
    grid-template-columns: 1fr;
  }
}

.sc-card {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 1.25rem;
  box-shadow: 0 4px 12px rgba(15, 23, 36, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.8);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.sc-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--card-color, #1a5fa8);
  transition: width 0.3s ease;
  opacity: 0.8;
}

.sc-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 24px rgba(15, 23, 36, 0.08);
  background: #fff;
}

.sc-card:hover::after {
  width: 100%;
  opacity: 0.04;
}

.sc-card__icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  flex-shrink: 0;
  margin-right: 1.25rem;
  background: var(--card-color);
  position: relative;
  z-index: 1;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.sc-card__content {
  flex: 1;
  position: relative;
  z-index: 1;
}

.sc-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #0f1724;
  margin-bottom: 0.3rem;
  line-height: 1.3;
}

.sc-card__desc {
  font-size: 0.85rem;
  color: var(--card-color);
  font-weight: 700;
  margin: 0;
  text-transform: uppercase;
}

.sc-card__arrow {
  color: #cbd5e1;
  font-size: 1.2rem;
  transition: all 0.3s ease;
  position: relative;
  z-index: 1;
}

.sc-card:hover .sc-card__arrow {
  color: var(--card-color, #1a5fa8);
  transform: translateX(4px);
}

/* Specific Scholarship Colors */
.grad-1 {
  --card-color: #d63031;
}

/* Red */
.grad-2 {
  --card-color: #e8a020;
}

/* Yellow/Orange */
.grad-3 {
  --card-color: #27ae60;
}

/* Green */
.grad-4 {
  --card-color: #2980b9;
}

/* Blue */
.grad-5 {
  --card-color: #8e44ad;
}

/* Purple */

.sc-footer {
  text-align: center;
  margin-top: 3.5rem;
  position: relative;
  z-index: 1;
}

/* /* ── CONTACT ── */
.contact-master {
  background: linear-gradient(135deg, #0c1e3b, #1a2f52);
  padding: 5rem 0;
  color: white;
}

.contact-master-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 4rem;
  align-items: start;
}

@media(max-width:768px) {
  .contact-master-grid {
    grid-template-columns: 1fr;
    gap: 2rem
  }
}

.contact-master__title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  color: white;
  margin-bottom: 1rem;
}

.contact-master__desc {
  color: rgba(255, 255, 255, .75);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.contact-master__info {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-master__item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-master__item i {
  color: var(--color-secondary);
  font-size: 1.1rem;
  margin-top: 3px;
  width: 18px;
  flex-shrink: 0;
}

.contact-master__item-label {
  font-size: .75rem;
  color: rgba(255, 255, 255, .5);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: .25rem;
}

.contact-master__item-value {
  color: white;
  font-weight: 500;
}

.contact-master__item-value a {
  color: white;
}

.contact-master__item-value a:hover {
  color: var(--color-secondary);
}

/*** Spinner ***/
#spinner {
  opacity: 0;
  visibility: hidden;
  transition: opacity .5s ease-out, visibility 0s linear .5s;
  z-index: 99999;
}

#spinner.show {
  transition: opacity .5s ease-out, visibility 0s linear 0s;
  visibility: visible;
  opacity: 1;
}

.back-to-top {
  position: fixed;
  right: 45px;
  bottom: 45px;
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: #1a5fa8 !important;
  color: white;
}

.btn-zalo {
  position: fixed;
  right: 45px;
  bottom: 105px;
  z-index: 99;
  background-color: #0068ff;
  border-color: #0068ff;
  color: white;
  display: flex;
}

.btn-zalo:hover {
  background-color: #0056d6;
  border-color: #0056d6;
  color: white;
}

.btn-hotline {
  position: fixed;
  right: 45px;
  bottom: 165px;
  z-index: 99;
  background-color: #dc3545;
  border-color: #dc3545;
  color: white;
  display: flex;
  animation: hotlinergb 1.5s infinite;
}

.btn-hotline:hover {
  background-color: #c82333;
  border-color: #bd2130;
  color: white;
}

@keyframes hotlinergb {
  0% {
    box-shadow: 0 0 0 0 rgba(220, 53, 69, 0.7);
  }

  70% {
    box-shadow: 0 0 0 10px rgba(220, 53, 69, 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(220, 53, 69, 0);
  }
}

.btn-tuvan {
  position: fixed;
  right: 45px;
  bottom: 225px;
  z-index: 99;
  background-color: #fd7e14;
  border-color: #fd7e14;
  color: white;
  display: flex;
}

.btn-tuvan:hover {
  background-color: #e86e0c;
  border-color: #e86e0c;
  color: white;
}

/* Mobile responsive for floating buttons */
@media (max-width: 768px) {

  .back-to-top,
  .btn-zalo,
  .btn-hotline,
  .btn-tuvan {
    right: 15px !important;
    width: 38px !important;
    height: 38px !important;
    font-size: 16px !important;
    padding: 0 !important;
  }

  .back-to-top {
    bottom: 20px !important;
  }

  .btn-zalo {
    bottom: 68px !important;
  }

  .btn-hotline {
    bottom: 116px !important;
  }

  .btn-tuvan {
    bottom: 164px !important;
  }

  .btn-zalo b {
    font-size: 11px !important;
  }
}

/*** Button ***/
.btn {
  transition: .5s;
}

.btn-square {
  width: 38px;
  height: 38px;
}

.btn-sm-square {
  width: 32px;
  height: 32px;
}

.btn-lg-square {
  width: 48px;
  height: 48px;
}

.btn-square,
.btn-sm-square,
.btn-lg-square {
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: normal;
  border-radius: 3px;
}