/* ==========================================================================
   ATSO — Enterprise UI layer (design tokens + overrides)
   Loads after app.css. Does not alter Twig/PHP logic.
   Typography: Google Sans Flex via Google Fonts (public OFL; see head.htm note).
   ========================================================================== */

:root {
  --color-page-bg: #f7f8fa;
  --color-primary: #012340;
  --color-primary-dark: #01182b;
  --color-primary-soft: #0a3558;
  --color-accent: #bfaa69;
  --color-accent-soft: #d4c992;
  --color-accent-muted: rgba(191, 170, 105, 0.22);

  --primary: #012340;
  --primary-dark: #01182b;
  --primary-light: #0a3558;
  --accent: #bfaa69;
  --accent-light: #d4c992;
  --accent-dark: #9a884f;
  --blue-tint: #eef1f5;
  --white: #ffffff;

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-2xl: 22px;
  --radius-3xl: 28px;

  --shadow-sm: 0 1px 2px rgba(1, 35, 64, 0.05);
  --shadow: 0 4px 14px rgba(1, 35, 64, 0.07);
  --shadow-md: 0 12px 32px rgba(1, 35, 64, 0.1);
  --shadow-lg: 0 22px 48px rgba(1, 35, 64, 0.12);

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 0.2s var(--ease-out);
  --transition: 0.32s var(--ease-out);

  --font-sans: "Google Sans Flex", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --teal: #0e4a72;
  --teal-light: #1a5f8f;
  --teal-dark: #0a3558;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  color: #243241;
  background-color: var(--color-page-bg);
  background-image: none;
}

body::before {
  background: var(--color-page-bg);
}

body.layout-home {
  background: var(--color-page-bg);
}

h1,
h2,
h3,
h4,
h5,
h6,
.hero-title,
.section-header h2,
.footer-title {
  font-family: var(--font-sans);
  letter-spacing: -0.02em;
}

/* ——— Layout shells (replaces inline flex on body/main) ——— */
.layout-body {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.layout-main {
  flex: 1 0 auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  z-index: 100000;
  padding: 12px 20px;
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: left var(--transition-fast), top var(--transition-fast);
}

.skip-link:focus {
  left: 12px;
  top: 12px;
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ——— Preloader ——— */
#global-loader {
  background: var(--color-page-bg);
}

/* ——— Navbar ——— */
.site-header.scrolled {
  background: rgba(247, 248, 250, 0.94);
  border-bottom: 1px solid rgba(1, 35, 64, 0.06);
  box-shadow: var(--shadow-sm);
}

.site-header .brand-full-name {
  font-weight: 700;
  letter-spacing: 0.06em;
}

.site-header.scrolled .brand-full-name {
  color: var(--color-primary);
}

.site-header .nav-menu .nav-item > a {
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.site-header .nav-menu .nav-item > a:hover,
.site-header .nav-menu .nav-item:hover > a {
  color: #fff;
  background: rgba(191, 170, 105, 0.2);
}

.site-header.scrolled .nav-menu .nav-item > a:hover,
.site-header.scrolled .nav-menu .nav-item:hover > a {
  color: var(--color-primary);
  background: var(--color-accent-muted);
}

.site-header.scrolled .nav-menu .nav-item > a {
  color: #314456;
}

/* Dropdowns + megamenu */
.nav-dropdown,
.nav-subdropdown,
.nav-item.has-megamenu > .nav-dropdown.megamenu {
  background: rgba(1, 35, 64, 0.96) !important;
  border: 1px solid rgba(191, 170, 105, 0.18) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-lg) !important;
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  transition:
    opacity 0.28s var(--ease-out),
    visibility 0.28s,
    transform 0.28s var(--ease-out) !important;
}

.nav-item:hover .nav-dropdown {
  transform: translateX(-50%) translateY(0) !important;
}

.nav-dropdown a:hover,
.nav-subdropdown a:hover {
  background: rgba(191, 170, 105, 0.12) !important;
  color: #fff !important;
}

.megamenu-title {
  color: var(--color-accent) !important;
  border-bottom-color: rgba(191, 170, 105, 0.25) !important;
}

.megamenu-col {
  border-right-color: rgba(255, 255, 255, 0.07) !important;
}

/* Utils buttons */
.site-header .nav-action-btn:hover,
.site-header .lang-switcher-btn-nav:hover,
.site-header .social-trigger-btn:hover {
  background: rgba(191, 170, 105, 0.18) !important;
  color: #fff !important;
}

.site-header.scrolled .nav-action-btn:hover,
.site-header.scrolled .lang-switcher-btn-nav:hover,
.site-header.scrolled .social-trigger-btn:hover {
  background: var(--color-accent-muted) !important;
  color: var(--color-primary) !important;
}

.lang-dropdown-nav,
.social-dropdown {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(1, 35, 64, 0.06);
}

.lang-dropdown-item.active {
  background: var(--color-accent-muted) !important;
  color: var(--color-primary) !important;
}

.social-dropdown-item:hover {
  color: var(--color-primary) !important;
}

.social-dropdown-item__icon {
  display: inline-flex;
  width: 1.125rem;
  height: 1.125rem;
  flex-shrink: 0;
}

.social-dropdown-item__icon svg {
  width: 100%;
  height: 100%;
}

/* ——— Hero ——— */
.hero.hero--premium {
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--color-primary);
}

.hero.hero--premium .hero-video {
  opacity: 0.95;
}

.hero.hero--premium .hero-overlay {
  background: linear-gradient(
    115deg,
    rgba(1, 35, 64, 0.92) 0%,
    rgba(1, 35, 64, 0.55) 45%,
    rgba(1, 24, 48, 0.78) 100%
  );
}

body.layout-home .hero.hero--premium .hero-overlay {
  background: linear-gradient(
    115deg,
    rgba(1, 35, 64, 0.92) 0%,
    rgba(1, 35, 64, 0.5) 42%,
    rgba(1, 24, 48, 0.82) 100%
  ) !important;
}

.hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  min-height: min(78vh, 720px);
  padding: clamp(5.5rem, 12vw, 8rem) 0 clamp(3rem, 8vw, 5rem);
}

@media (min-width: 960px) {
  .hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.35fr);
  }
}

.hero__copy {
  max-width: 40rem;
}

.hero__accent-bar {
  width: 3.5rem;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-soft));
  margin-bottom: 1.25rem;
  opacity: 0;
  animation: fadeUp 0.75s var(--ease-out) 0.05s forwards;
}

.hero--premium .hero-badge {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(191, 170, 105, 0.35);
  color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.hero--premium .hero-badge-dot {
  background: var(--color-accent);
  box-shadow: 0 0 0 0 rgba(191, 170, 105, 0.45);
  animation: pulseAccent 2.4s ease-in-out infinite;
}

@keyframes pulseAccent {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(191, 170, 105, 0.45);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(191, 170, 105, 0);
  }
}

.hero-title .highlight-stroke {
  -webkit-text-stroke: 1px rgba(191, 170, 105, 0.85);
  color: transparent;
}

.hero-title .teal-text {
  color: var(--color-accent-soft);
}

.hero--premium .hero-text {
  color: rgba(247, 248, 250, 0.88);
  font-size: clamp(1rem, 2.1vw, 1.125rem);
  max-width: 36rem;
}

.hero__aside {
  display: none;
}

@media (min-width: 960px) {
  .hero__aside {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 1rem;
    opacity: 0.95;
  }
}

.hero__stat-pill {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(191, 170, 105, 0.22);
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  min-width: 200px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), border-color var(--transition);
}

.hero__stat-pill:hover {
  transform: translateY(-3px);
  border-color: rgba(191, 170, 105, 0.45);
}

.hero__stat-pill strong {
  display: block;
  font-size: 1.75rem;
  font-weight: 750;
  color: #fff;
  letter-spacing: -0.03em;
}

.hero__stat-pill span {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent-soft);
}

.btn-hero-primary {
  background: linear-gradient(135deg, var(--color-accent) 0%, #a89254 100%);
  color: var(--color-primary) !important;
  border: none;
  border-radius: var(--radius);
  font-weight: 700;
  box-shadow: 0 4px 18px rgba(191, 170, 105, 0.35);
}

.btn-hero-primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
  box-shadow: 0 8px 26px rgba(191, 170, 105, 0.45);
}

.btn-hero-outline {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.06);
  color: #fff !important;
  font-weight: 600;
}

.btn-hero-outline:hover {
  background: rgba(191, 170, 105, 0.14);
  border-color: rgba(191, 170, 105, 0.55);
}

/* ——— Stats ——— */
.stats-bar-inner .stat-item:nth-child(odd) {
  background: linear-gradient(145deg, var(--color-primary) 0%, var(--color-primary-soft) 100%);
}

.stats-bar-inner .stat-item:nth-child(even) {
  background: linear-gradient(145deg, var(--color-primary-soft) 0%, #0a2944 100%);
}

.stat-item {
  border: 1px solid rgba(191, 170, 105, 0.12);
  border-radius: var(--radius-xl);
}

.stat-item:hover {
  border-color: rgba(191, 170, 105, 0.35);
}

/* ——— Sections ——— */
.section-gray {
  background: var(--blue-tint);
}

.section-line {
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-soft));
  height: 3px;
  border-radius: 999px;
}

.section-header h2 {
  color: var(--color-primary);
  font-weight: 750;
}

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

.section-link:hover {
  color: var(--color-accent-dark);
  border-bottom-color: var(--color-accent);
}

/* Cards */
.news-card {
  border-radius: var(--radius-xl);
  border-color: rgba(1, 35, 64, 0.06);
  box-shadow: var(--shadow);
}

.news-card:hover {
  border-color: rgba(191, 170, 105, 0.45);
  box-shadow: var(--shadow-md);
}

.news-card:hover .news-card-body h3 {
  color: var(--color-primary);
}

.news-card-date {
  color: var(--color-accent-dark);
}

.news-card-more {
  color: var(--color-primary);
}

.news-card-more:hover {
  color: var(--color-accent-dark);
}

/* Useful links, applicant cards — accent border glow on hover */
.useful-link-card,
.applicant-card {
  border-radius: var(--radius-xl);
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    border-color var(--transition);
}

.useful-link-card:hover,
.applicant-card:hover {
  box-shadow: var(--shadow-md);
}

.applicant-card-bachelor,
.applicant-card-master,
.applicant-card-docs {
  border: 1px solid rgba(1, 35, 64, 0.06);
}

/* Page header inner pages */
.page-header {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary), var(--color-primary-soft));
}

/* Footer */
.footer-accent {
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-primary));
}

.site-footer {
  background: linear-gradient(180deg, #010f1a 0%, var(--color-primary-dark) 100%);
}

.footer-title {
  color: var(--color-accent-soft);
}

.footer-social a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-primary);
}

.footer-desc--spaced {
  margin-top: 1.5rem;
}

.footer-social--spaced {
  margin-top: 1.25rem;
}

/* Useful link icons (light section) */
.useful-link-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius);
  background: var(--color-accent-muted);
  color: var(--color-primary);
  transition: background var(--transition-fast), transform var(--transition-fast), color var(--transition-fast);
}

.useful-link-card:hover .useful-link-icon {
  background: rgba(191, 170, 105, 0.38);
  transform: scale(1.05);
  color: var(--color-primary-dark);
}

/* Buttons site-wide touch */
.btn-about,
.btn-admission,
.btn-virtual-tour,
.btn-newsletter {
  border-radius: var(--radius);
}

/* Focus visible (a11y) */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ——— Homepage blocks: align legacy gradients with new primary ——— */
.vision-overlay {
  background: linear-gradient(135deg, rgba(1, 35, 64, 0.92) 0%, rgba(1, 35, 64, 0.78) 100%) !important;
}

.admission-cta {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 45%, var(--color-primary-soft) 100%) !important;
}

.admission-cta::before {
  background: rgba(191, 170, 105, 0.12) !important;
}

.btn-admission:hover {
  box-shadow: 0 8px 25px rgba(191, 170, 105, 0.4) !important;
}

.virtual-tour-overlay {
  background: linear-gradient(135deg, rgba(1, 35, 64, 0.9) 0%, rgba(1, 35, 64, 0.72) 100%) !important;
}

.applicant-card-bachelor {
  background: linear-gradient(145deg, var(--color-primary) 0%, var(--color-primary-soft) 100%) !important;
}

.applicant-card-master {
  background: linear-gradient(145deg, #0a3558 0%, var(--teal-light) 100%) !important;
}

.applicant-card-docs {
  background: linear-gradient(145deg, var(--color-primary-soft) 0%, #0d4a38 100%) !important;
}

.applicant-icon {
  background: rgba(255, 255, 255, 0.14) !important;
  border-radius: 50% !important;
}

.applicant-icon i {
  color: #fff !important;
}

.applicant-card:hover .applicant-icon {
  background: rgba(191, 170, 105, 0.35) !important;
}

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

.gallery-item:hover .gallery-overlay {
  background: rgba(1, 35, 64, 0.55) !important;
}

.useful-links-section {
  background: linear-gradient(180deg, var(--blue-tint) 0%, var(--color-page-bg) 100%);
}