:root {
  --sv-navy: #0a1628;
  --sv-blue: #0066cc;
  --sv-blue-deep: #004a99;
  --sv-green: #2e8b57;
  --sv-wash: #f0f4fa;
  --sv-text: #454545;
  --sv-cta: linear-gradient(123deg, #0066cc, #004a99);
  --container: min(1280px, calc(100% - 1.5rem));
  --font: "Poppins", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--sv-text);
  background: var(--sv-wash);
  line-height: 1.5;
}

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

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

.container {
  width: var(--container);
  margin-inline: auto;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 27px;
  border: none;
  border-radius: 4px;
  font-size: 1.05rem;
  font-weight: 600;
  color: #fff;
  background: var(--sv-cta);
  cursor: pointer;
  transition: filter 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

.btn-primary:hover {
  filter: brightness(1.08);
  box-shadow: 0 4px 12px rgba(0, 102, 204, 0.35);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-primary:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 10px 16px;
  border: 1px solid var(--sv-blue);
  border-radius: 4px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--sv-blue);
  background: transparent;
  transition: background 0.2s;
}

.btn-outline:hover {
  background: var(--sv-wash);
}

.link {
  transition: color 0.2s;
}

.link:hover {
  color: var(--sv-blue-deep);
}

.top-bar {
  background: var(--sv-blue);
  color: #fff;
  font-size: 14px;
}

.top-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  gap: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.is-dark {
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(6px);
}

.site-header.is-light {
  background: #fff;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 10px 0;
}

.logo img {
  height: 40px;
  width: auto;
}

.logo.on-dark {
  background: rgba(255, 255, 255, 0.95);
  padding: 4px 8px;
  border-radius: 6px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

.nav-desktop {
  display: none;
  gap: 2px;
  font-size: 15px;
  font-weight: 500;
}

.nav-desktop a {
  padding: 8px 12px;
  border-radius: 4px;
  white-space: nowrap;
}

.site-header.is-light .nav-desktop a:hover {
  color: var(--sv-blue);
}

.site-header.is-dark .nav-desktop a {
  color: #fff;
}

.site-header.is-dark .nav-desktop a:hover {
  opacity: 0.85;
}

.nav-login {
  font-size: 0.875rem;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 4px;
}

.menu-toggle {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 1.5rem;
}

.nav-mobile {
  display: none;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  background: #fff;
  padding: 12px 16px;
}

.nav-mobile.is-open {
  display: block;
}

.nav-mobile a {
  display: block;
  padding: 10px 8px;
  font-weight: 500;
  color: #000;
}

@media (min-width: 1280px) {
  .nav-desktop {
    display: flex;
  }
  .menu-toggle {
    display: none;
  }
}

.hero {
  position: relative;
  min-height: calc(100vh - 6.5rem);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--sv-navy) center / cover no-repeat;
  background-image: linear-gradient(135deg, #0a1628 0%, #004a99 100%);
}

.hero-bg.has-image {
  background-image: linear-gradient(rgba(0, 0, 0, 0.45), rgba(0, 0, 0, 0.45)), url("../marketing/hero.jpg");
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
}

.hero-content {
  position: relative;
  z-index: 2;
  min-height: calc(100vh - 6.5rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 4rem 0 9rem;
  color: #fff;
}

.hero h1 {
  max-width: 40rem;
  font-size: clamp(2.4rem, 6vw, 3.375rem);
  line-height: 1.15;
  margin: 0;
}

.hero h1 .accent {
  color: var(--sv-blue);
}

.hero p {
  max-width: 48rem;
  margin: 1.5rem 0 0;
  font-size: clamp(1rem, 2vw, 1.25rem);
}

.hero-partners {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  z-index: 2;
  padding: 4rem 0 1.5rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
}

.hero-partners h2 {
  text-align: center;
  color: #fff;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  margin: 0 0 1rem;
}

.marquee-wrap {
  overflow: hidden;
}

.marquee {
  display: flex;
  width: max-content;
  gap: 3rem;
  padding: 0 2rem;
  animation: marquee 28s linear infinite;
}

.marquee span {
  white-space: nowrap;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--sv-blue);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}

@keyframes marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

.section {
  padding: 4rem 0;
  scroll-margin-top: 6rem;
}

.section-alt {
  background: #f9fafb;
}

.section-title {
  text-align: center;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  color: #000;
  margin: 0 0 2rem;
}

.mode-toggle {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.mode-toggle button {
  border: none;
  border-radius: 999px;
  padding: 8px 24px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  transition: background 0.2s, color 0.2s;
}

.mode-toggle button.active {
  background: var(--sv-blue);
  color: #fff;
}

.courses-layout {
  display: grid;
  gap: 2rem;
}

@media (min-width: 1024px) {
  .courses-layout {
    grid-template-columns: 280px 1fr;
  }
}

.category-list {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  height: fit-content;
}

.category-list button {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 14px 16px;
  border: none;
  border-bottom: 1px solid #f0f0f0;
  background: #fff;
  text-align: left;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.category-list button.active {
  background: var(--sv-blue);
  color: #fff;
}

.course-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

.course-grid--compact {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.875rem;
}

.course-card {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(0, 102, 204, 0.08);
  box-shadow: 0 2px 8px rgba(10, 22, 40, 0.06);
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.45s ease, border-color 0.35s ease;
}

.course-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 32px rgba(0, 102, 204, 0.18);
  border-color: rgba(0, 102, 204, 0.25);
}

.course-card__media {
  overflow: hidden;
}

.course-card .thumb {
  height: 160px;
  background: var(--sv-wash) center / cover no-repeat;
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.course-card:hover .thumb {
  transform: scale(1.06);
}

.course-card--compact .thumb {
  height: 108px;
}

.course-card .body {
  padding: 1rem 1.25rem 1.25rem;
}

.course-card--compact .body {
  padding: 0.65rem 0.85rem 0.85rem;
}

.course-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
  color: #000;
  line-height: 1.25;
  transition: color 0.25s ease;
}

.course-card--compact h3 {
  font-size: 0.92rem;
}

.course-card:hover h3 {
  color: var(--sv-blue-deep);
}

.course-card .rating {
  color: var(--sv-blue);
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.course-card .desc {
  margin: 0 0 0.65rem;
  font-size: 0.875rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.course-card--compact .desc {
  font-size: 0.78rem;
  margin-bottom: 0.5rem;
  -webkit-line-clamp: 2;
}

.course-card .actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
}

.btn-sm {
  font-size: 0.78rem !important;
  padding: 6px 12px !important;
}

.btn-ghost {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--sv-blue);
  padding: 6px 8px;
  border-radius: 4px;
  transition: background 0.25s ease, color 0.25s ease;
}

.btn-ghost:hover {
  background: var(--sv-wash);
  color: var(--sv-blue-deep);
}

.branches-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
}

.branch-card {
  background: #fff;
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.branch-card h3 {
  margin: 0;
  color: #000;
}

.modes-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.mode-card {
  background: #fff;
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.mode-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1rem;
  border-radius: 50%;
  background: var(--sv-cta);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 2rem;
}

.faq-contact {
  display: grid;
  gap: 3rem;
}

@media (min-width: 1024px) {
  .faq-contact {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.faq-list {
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
}

.faq-item button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border: none;
  border-bottom: 1px solid #e5e7eb;
  background: #fff;
  text-align: left;
  font-weight: 600;
  color: #000;
  cursor: pointer;
}

.faq-item .answer {
  padding: 0 1.25rem 1rem;
  font-size: 0.875rem;
  display: none;
}

.faq-item.is-open .answer {
  display: block;
}

.faq-item.is-open .chevron {
  transform: rotate(180deg);
}

.chevron {
  transition: transform 0.3s;
  flex-shrink: 0;
}

.contact-card {
  background: #f9fafb;
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.contact-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
  color: #000;
}

.site-footer {
  border-top: 1px solid #e5e7eb;
  background: #fff;
  padding: 2rem 0;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.875rem;
}

.fab-callback {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  writing-mode: vertical-rl;
  background: var(--sv-blue);
  color: #fff;
  border: none;
  padding: 2rem 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  cursor: pointer;
  border-radius: 6px 0 0 6px;
  transition: background 0.3s, padding 0.3s;
  display: none;
}

.fab-callback:hover {
  background: var(--sv-blue-deep);
  padding-right: 12px;
}

.fab-phone {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 40;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--sv-blue);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  box-shadow: 0 4px 16px rgba(0, 102, 204, 0.4);
  transition: transform 0.3s, background 0.3s;
}

.fab-phone:hover {
  transform: scale(1.05);
  background: var(--sv-blue-deep);
}

@media (min-width: 768px) {
  .fab-callback {
    display: block;
  }
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  place-items: center;
  padding: 1rem;
}

.modal-backdrop.is-open {
  display: grid;
}

.modal {
  width: 100%;
  max-width: 420px;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
  animation: modalIn 0.25s ease;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--sv-blue-deep);
  color: #fff;
}

.modal-head button {
  background: none;
  border: none;
  color: #fff;
  font-size: 1.25rem;
  cursor: pointer;
}

.modal form {
  padding: 1.25rem;
  display: grid;
  gap: 0.75rem;
}

.modal input,
.modal select,
.modal textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  font: inherit;
}

.modal .hp {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
}

.form-msg {
  font-size: 0.875rem;
  text-align: center;
  min-height: 1.25rem;
}

.form-msg.error {
  color: #b91c1c;
}

.form-msg.ok {
  color: var(--sv-green);
}

.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  z-index: 200;
  padding: 12px 20px;
  border-radius: 8px;
  color: #fff;
  font-size: 0.875rem;
  font-weight: 500;
  transition: transform 0.3s ease;
  max-width: 90vw;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

.toast.ok {
  background: var(--sv-green);
}

.toast.err {
  background: #b91c1c;
}

/* Login page */
.login-page {
  min-height: 100vh;
  display: grid;
}

@media (min-width: 900px) {
  .login-page {
    grid-template-columns: 1fr 1fr;
  }
}

.login-brand {
  padding: 3rem 2rem;
  color: #fff;
  background: linear-gradient(160deg, #0a1628, #0066cc 45%, #004a99);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.login-brand .tagline {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 1.5rem;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.9);
}

.login-brand .tagline::before,
.login-brand .tagline::after {
  content: "";
  flex: 1;
  max-width: 48px;
  height: 2px;
  background: var(--sv-green);
}

.login-form-wrap {
  padding: 3rem 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
}

.login-form {
  width: 100%;
  max-width: 400px;
}

.login-form h2 {
  margin: 0 0 0.25rem;
  color: #000;
}

.login-form label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
}

.login-form input,
.login-form textarea {
  width: 100%;
  margin-bottom: 1rem;
  padding: 10px 12px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font: inherit;
}

.stats-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.stat-pill {
  background: #fff;
  border-radius: 8px;
  padding: 1rem;
  text-align: center;
  font-weight: 700;
  color: var(--sv-blue);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.feature-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin-top: 2rem;
}

.feature-card {
  background: #fff;
  border-radius: 12px;
  padding: 1.25rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.feature-card h3 {
  margin: 0 0 0.5rem;
  color: #000;
}

.eyebrow {
  color: var(--sv-green);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

/* Multipage + motion */
.page-home .site-header.is-dark {
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(6px);
}

.page-home .site-header.is-light,
body:not(.page-home) .site-header {
  background: #fff;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

body:not(.page-home) .site-header .nav-link,
body:not(.page-home) .site-header .nav-login {
  color: var(--sv-navy);
}

.nav-link {
  padding: 8px 12px;
  border-radius: 4px;
  transition: color 0.25s ease, background 0.25s ease;
}

.nav-link.is-active {
  color: var(--sv-blue);
  font-weight: 600;
}

.site-header.is-light .nav-link:hover,
body:not(.page-home) .nav-link:hover {
  color: var(--sv-blue);
  background: var(--sv-wash);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.75s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.75s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.page-hero {
  padding: 3.5rem 0 2.5rem;
  background: linear-gradient(135deg, var(--sv-navy) 0%, var(--sv-blue-deep) 55%, var(--sv-blue) 100%);
  color: #fff;
}

.page-hero h1 {
  margin: 0.25rem 0 0.75rem;
  font-size: clamp(1.85rem, 4vw, 2.75rem);
}

.page-hero p:last-child {
  margin: 0;
  max-width: 36rem;
  opacity: 0.92;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: 4px;
  font-weight: 600;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.85);
  transition: background 0.3s ease, transform 0.2s ease;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

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

.section-more {
  color: var(--sv-blue);
  font-weight: 600;
}

.section-title--left {
  text-align: left !important;
}

.section-sub {
  text-align: center;
  font-size: 1.1rem;
  margin: 0 0 1rem;
  color: #000;
}

.tile-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.tile-card {
  background: #fff;
  border-radius: 12px;
  padding: 1.25rem;
  border: 1px solid transparent;
  box-shadow: 0 2px 10px rgba(10, 22, 40, 0.06);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.4s ease, border-color 0.35s ease;
}

.tile-card:hover {
  transform: translateY(-5px) scale(1.01);
  box-shadow: 0 16px 36px rgba(0, 102, 204, 0.15);
  border-color: rgba(0, 102, 204, 0.2);
}

.tile-icon {
  font-size: 1.75rem;
  display: block;
  margin-bottom: 0.5rem;
}

.tile-card h3 {
  margin: 0 0 0.35rem;
  color: #000;
  font-size: 1.05rem;
}

.tile-card p {
  margin: 0;
  font-size: 0.85rem;
}

.branch-card,
.mode-card,
.feature-card,
.stat-pill,
.partner-pill {
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.35s ease;
}

.branch-card:hover,
.mode-card:hover,
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 24px rgba(0, 102, 204, 0.12);
}

.stat-pill:hover,
.partner-pill:hover {
  transform: scale(1.04);
}

.partner-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  justify-content: center;
}

.partner-pill {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: #fff;
  border-radius: 999px;
  font-weight: 700;
  color: var(--sv-blue);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

.btn-block {
  width: 100%;
}

.text-blue {
  color: var(--sv-blue);
}

.footer-logo {
  height: 48px;
}

.footer-login {
  color: var(--sv-blue);
  font-weight: 600;
}

.top-bar-tag {
  display: none;
}

@media (min-width: 640px) {
  .top-bar-tag {
    display: inline;
  }
}

.category-list button {
  transition: background 0.25s ease, color 0.25s ease, padding-left 0.25s ease;
}

.category-list button:hover:not(.active) {
  background: var(--sv-wash);
  padding-left: 1.25rem;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .course-card:hover,
  .tile-card:hover,
  .course-card:hover .thumb {
    transform: none;
  }
}