:root {
  --bg: #f7f4ed;
  --paper: #fffdf8;
  --ink: #151515;
  --muted: #5f625f;
  --red: #b4232a;
  --green: #176a5b;
  --gold: #d7a84d;
  --line: rgba(21, 21, 21, 0.12);
  --shadow: 0 22px 70px rgba(20, 30, 28, 0.11);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Be Vietnam Pro", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(180, 35, 42, 0.06) 1px, transparent 1px),
    linear-gradient(rgba(23, 106, 91, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.5), transparent 70%);
}

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

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

.site-header,
.section,
.footer {
  padding-left: 28px;
  padding-right: 28px;
}

.nav,
.hero,
.section-heading,
.feature-grid,
.course-grid,
.schedule,
.image-grid,
.register-panel,
.footer {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-logo {
  width: 62px;
  height: 62px;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1.12rem;
  font-weight: 800;
}

.brand small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.84rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: #303330;
  font-weight: 700;
}

.nav-links a,
.text-link {
  border-bottom: 2px solid transparent;
}

.nav-links a:hover,
.text-link:hover {
  border-color: var(--red);
}

.nav-call,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 8px;
  font-weight: 800;
}

.nav-call {
  background: var(--ink);
  color: #fff;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.86fr);
  gap: 42px;
  align-items: center;
  min-height: calc(100vh - 106px);
  padding-top: 34px;
  padding-bottom: 64px;
}

.eyebrow,
.section-tag,
.course-level {
  margin: 0 0 14px;
  color: var(--red);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: "Noto Serif SC", "Be Vietnam Pro", serif;
  line-height: 1.05;
  letter-spacing: 0;
}

h1 {
  max-width: 820px;
  margin-bottom: 24px;
  font-size: clamp(2.8rem, 6vw, 5.9rem);
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(2rem, 4vw, 4.2rem);
}

h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.hero-text,
.section p,
.course-card li,
.footer p {
  color: var(--muted);
  line-height: 1.75;
}

.hero-text {
  max-width: 700px;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button-primary {
  border: 0;
  background: var(--red);
  color: #fff;
  box-shadow: 0 14px 32px rgba(180, 35, 42, 0.22);
  cursor: pointer;
}

.button-secondary {
  border: 1px solid var(--line);
  background: var(--paper);
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.trust-row span {
  padding: 9px 12px;
  border: 1px solid rgba(23, 106, 91, 0.24);
  border-radius: 999px;
  background: rgba(23, 106, 91, 0.08);
  color: var(--green);
  font-weight: 800;
  font-size: 0.9rem;
}

.hero-media {
  position: relative;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.hero-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 6px;
  background: #f2e7d8;
}

.hero-card {
  position: absolute;
  left: 36px;
  right: 36px;
  bottom: 36px;
  display: grid;
  gap: 6px;
  padding: 18px;
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.94);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.11);
}

.hero-card span {
  color: var(--muted);
  line-height: 1.55;
}

.section {
  padding-top: 70px;
  padding-bottom: 70px;
}

.section-heading {
  margin-bottom: 26px;
}

.section-heading.split {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
}

.text-link {
  color: var(--red);
  font-weight: 800;
  white-space: nowrap;
}

.feature-grid,
.course-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card,
.course-card,
.schedule,
.register-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.feature-card,
.course-card {
  padding: 24px;
}

.course-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.course-card {
  display: flex;
  flex-direction: column;
}

.course-card p {
  min-height: 112px;
}

.course-card ul {
  display: grid;
  gap: 9px;
  margin: auto 0 0;
  padding-left: 18px;
}

.course-card.accent {
  background:
    linear-gradient(180deg, rgba(23, 106, 91, 0.1), rgba(255, 253, 248, 0.96)),
    var(--paper);
}

.schedule {
  display: grid;
  grid-template-columns: 0.82fr 1fr;
  gap: 28px;
  padding: 32px;
}

.schedule-copy h2 {
  max-width: 620px;
}

.schedule-table {
  display: grid;
  gap: 12px;
}

.schedule-table div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbf8f0;
}

.schedule-table span {
  color: var(--muted);
  text-align: right;
}

.image-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr 0.9fr;
  gap: 18px;
}

.image-grid img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.register-panel {
  display: grid;
  grid-template-columns: 0.9fr 1fr;
  gap: 28px;
  padding: 32px;
  background:
    linear-gradient(135deg, rgba(180, 35, 42, 0.07), transparent 35%),
    var(--paper);
}

.contact-boxes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.contact-boxes a {
  display: grid;
  gap: 8px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbf8f0;
}

.contact-boxes span {
  color: var(--red);
  font-weight: 800;
}

.register-form {
  display: grid;
  gap: 14px;
  padding: 24px;
  border-radius: 8px;
  background: #151515;
  color: #fff;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  font-weight: 700;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font: inherit;
  outline: none;
}

.field input::placeholder,
.field textarea::placeholder {
  color: rgba(255, 255, 255, 0.52);
}

.field select option {
  color: var(--ink);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--gold);
}

.form-submit {
  width: 100%;
  margin-top: 4px;
}

.form-message {
  min-height: 22px;
  margin: 0;
  color: #f2d48a;
  font-weight: 700;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding-top: 28px;
  padding-bottom: 42px;
}

.footer strong {
  font-size: 1.1rem;
}

.footer p {
  margin: 8px 0 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-weight: 800;
}

.reveal-up {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms ease, transform 520ms ease;
}

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

@media (max-width: 1080px) {
  .hero,
  .schedule,
  .register-panel {
    grid-template-columns: 1fr;
  }

  .course-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .course-card p {
    min-height: 0;
  }
}

@media (max-width: 760px) {
  .site-header,
  .section,
  .footer {
    padding-left: 18px;
    padding-right: 18px;
  }

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

  .nav-links {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .nav-call {
    width: 100%;
  }

  .hero {
    min-height: auto;
    padding-top: 18px;
  }

  .hero-media {
    padding: 12px;
  }

  .hero-card {
    position: static;
    margin-top: 12px;
  }

  .feature-grid,
  .course-grid,
  .image-grid,
  .contact-boxes {
    grid-template-columns: 1fr;
  }

  .section-heading.split,
  .schedule-table div,
  .footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .schedule-table span {
    text-align: left;
  }

  .image-grid img {
    height: auto;
    min-height: 220px;
  }
}