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

:root {
  --navy:   #0d1b2a;
  --navy2:  #152338;
  --gold:   #c9a84c;
  --gold2:  #e8c46a;
  --white:  #ffffff;
  --off:    #f5f3ef;
  --text:   #1a1a2e;
  --muted:  #6b7a90;
  --border: #e2e0db;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(13,27,42,.10);
  --transition: .25s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  font-size: 16px;
}

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
  padding: 18px 0;
}

.nav.scrolled {
  background: rgba(13,27,42,.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0,0,0,.3);
  padding: 12px 0;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav__logo {
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gold);
  text-decoration: none;
  letter-spacing: .02em;
}

.nav__links {
  display: flex;
  gap: 32px;
  list-style: none;
  align-items: center;
}

.nav__links a {
  color: rgba(255,255,255,.8);
  text-decoration: none;
  font-size: .9rem;
  font-weight: 500;
  transition: color var(--transition);
}

.nav__links a:hover { color: var(--gold); }

.nav__cta {
  background: var(--gold) !important;
  color: var(--navy) !important;
  padding: 8px 20px;
  border-radius: 6px;
  font-weight: 600 !important;
  transition: background var(--transition) !important;
}

.nav__cta:hover { background: var(--gold2) !important; }

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── HERO ── */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy2) 60%, #1a2f4a 100%);
  display: flex;
  align-items: center;
  padding: 100px 24px 60px;
  position: relative;
  overflow: hidden;
  gap: 40px;
  max-width: 1160px;
  margin: 0 auto;
}

.hero__bg-formula {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero__bg-formula svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__content {
  position: relative;
  z-index: 1;
  flex: 1;
  max-width: 600px;
}

.hero__eyebrow {
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
}

.hero__name {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero__tagline {
  font-size: 1.15rem;
  color: rgba(255,255,255,.7);
  margin-bottom: 28px;
  line-height: 1.6;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}

.badge {
  background: rgba(201,168,76,.15);
  border: 1px solid rgba(201,168,76,.35);
  color: var(--gold2);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: .03em;
}

.hero__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero__photo-wrap {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.hero__photo-placeholder  img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 14px;
}

.hero__initials {
  font-family: 'Playfair Display', serif;
  font-size: 4rem;
  font-weight: 700;
  color: var(--gold);
  opacity: .5;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 28px;
  border-radius: 8px;
  font-size: .95rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn--gold {
  background: var(--gold);
  color: var(--navy);
}

.btn--gold:hover {
  background: var(--gold2);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(201,168,76,.35);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,.35);
}

.btn--outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn--outline-dark {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--navy);
}

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

.btn--full { width: 100%; }

/* ── STATS ── */
.stats {
  background: var(--gold);
  padding: 40px 0;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  text-align: center;
}

.stats__item {
  padding: 16px 24px;
  border-right: 1px solid rgba(13,27,42,.15);
}

.stats__item:last-child { border-right: none; }

.stats__num {
  display: block;
  font-family: 'Playfair Display', serif;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
  margin-bottom: 6px;
}

.stats__label {
  font-size: .8rem;
  font-weight: 500;
  color: rgba(13,27,42,.65);
  text-transform: uppercase;
  letter-spacing: .06em;
}

/* ── SECTIONS ── */
.section {
  padding: 96px 0;
}

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

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

.section__eyebrow {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}

.section__eyebrow--light { color: var(--gold2); }

.section__title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
  margin-bottom: 48px;
}

.section__title--light { color: var(--white); }

/* ── ABOUT ── */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.about__lead {
  font-size: 1.1rem;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 16px;
  line-height: 1.7;
}

.about__body {
  color: var(--muted);
  margin-bottom: 14px;
  line-height: 1.75;
}

.about__links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 28px;
}

.about__extlink {
  color: var(--gold);
  text-decoration: none;
  font-weight: 500;
  font-size: .9rem;
  transition: color var(--transition);
}

.about__extlink:hover { color: var(--navy); }

.about__features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.feature-card {
  background: var(--off);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  transition: box-shadow var(--transition), transform var(--transition);
}

.feature-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.feature-card__icon {
  font-size: 1.8rem;
  margin-bottom: 10px;
}

.feature-card h3 {
  font-size: .95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.feature-card p {
  font-size: .85rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ── SUBJECTS ── */
.subjects__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.subject-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(201,168,76,.2);
  border-radius: var(--radius);
  padding: 28px;
  transition: background var(--transition), border-color var(--transition);
}

.subject-card:hover {
  background: rgba(201,168,76,.08);
  border-color: rgba(201,168,76,.45);
}

.subject-card__icon {
  font-size: 2rem;
  margin-bottom: 14px;
}

.subject-card__title {
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem;
  color: var(--white);
  margin-bottom: 8px;
}

.subject-card__desc {
  font-size: .875rem;
  color: rgba(255,255,255,.6);
  line-height: 1.65;
  margin-bottom: 16px;
}

.subject-card__levels {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.level-tag {
  background: rgba(201,168,76,.15);
  color: var(--gold2);
  border: 1px solid rgba(201,168,76,.25);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 500;
}

/* ── PRICES ── */
.prices__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  align-items: start;
}

.price-card {
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  position: relative;
  transition: box-shadow var(--transition);
}

.price-card:hover { box-shadow: var(--shadow); }

.price-card--featured {
  border-color: var(--gold);
  box-shadow: 0 0 0 1px var(--gold), var(--shadow);
}

.price-card__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gold);
  color: var(--navy);
  font-size: .75rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 20px;
  letter-spacing: .06em;
  text-transform: uppercase;
  white-space: nowrap;
}

.price-card__header h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.3rem;
  margin-bottom: 6px;
}

.price-card__desc {
  font-size: .85rem;
  color: var(--muted);
  margin-bottom: 24px;
}

.price-card__price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.price-card__amount {
  font-family: 'Playfair Display', serif;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--navy);
}

.price-card__unit {
  font-size: .85rem;
  color: var(--muted);
}

.price-card__list {
  list-style: none;
  margin-bottom: 28px;
}

.price-card__list li {
  font-size: .875rem;
  color: var(--text);
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
  border-bottom: 1px solid var(--border);
}

.price-card__list li:last-child { border-bottom: none; }

.price-card__list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-weight: 700;
}

.prices__note {
  text-align: center;
  color: var(--muted);
  font-size: .85rem;
  margin-top: 28px;
}

/* ── REVIEWS ── */
.reviews__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.review-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: box-shadow var(--transition);
}

.review-card:hover { box-shadow: var(--shadow); }

.review-card__stars {
  color: var(--gold);
  font-size: 1rem;
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.review-card__text {
  font-size: .875rem;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 18px;
  font-style: italic;
}

.review-card__author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.review-card__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .9rem;
  flex-shrink: 0;
}

.review-card__author strong {
  display: block;
  font-size: .875rem;
  color: var(--text);
}

.review-card__author span {
  font-size: .78rem;
  color: var(--muted);
}

.reviews__more {
  text-align: center;
  margin-top: 40px;
}

/* ── STEPS ── */
.steps {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.step {
  flex: 1;
  text-align: center;
}

.step__num {
  font-family: 'Playfair Display', serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--gold);
  opacity: .4;
  line-height: 1;
  margin-bottom: 12px;
}

.step h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 8px;
}

.step p {
  font-size: .85rem;
  color: rgba(255,255,255,.55);
  line-height: 1.65;
}

.step__arrow {
  font-size: 1.5rem;
  color: var(--gold);
  opacity: .4;
  padding-top: 20px;
  flex-shrink: 0;
}

/* ── CONTACT ── */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact__sub {
  color: var(--muted);
  margin-bottom: 32px;
  line-height: 1.7;
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact__social {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  font-size: .9rem;
  transition: color var(--transition);
}

.contact__social:hover { color: var(--gold); }

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: .82rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: .03em;
  text-transform: uppercase;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-family: 'Inter', sans-serif;
  font-size: .95rem;
  color: var(--text);
  background: var(--off);
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201,168,76,.15);
}

.form__success {
  display: none;
  background: #e8f5e9;
  color: #2e7d32;
  padding: 14px 18px;
  border-radius: 8px;
  font-size: .9rem;
  font-weight: 500;
  border: 1px solid #a5d6a7;
}

.form__error {
  display: none;
  background: #fdecea;
  color: #c62828;
  padding: 14px 18px;
  border-radius: 8px;
  font-size: .9rem;
  border: 1px solid #ef9a9a;
}

/* ── FOOTER ── */
.footer {
  background: var(--navy);
  padding: 40px 0 24px;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 28px;
  gap: 24px;
  flex-wrap: wrap;
}

.footer__name {
  font-family: 'Playfair Display', serif;
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 600;
}

.footer__sub {
  color: rgba(255,255,255,.45);
  font-size: .85rem;
  margin-top: 4px;
}

.footer__links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.footer__links a {
  color: rgba(255,255,255,.5);
  text-decoration: none;
  font-size: .85rem;
  transition: color var(--transition);
}

.footer__links a:hover { color: var(--gold); }

.footer__copy {
  color: rgba(255,255,255,.25);
  font-size: .78rem;
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 20px;
  text-align: center;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .about__grid,
  .contact__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .subjects__grid,
  .reviews__grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .stats__item:nth-child(2) { border-right: none; }
  .stats__item:nth-child(3) { border-top: 1px solid rgba(13,27,42,.15); border-right: 1px solid rgba(13,27,42,.15); }
  .stats__item:nth-child(4) { border-top: 1px solid rgba(13,27,42,.15); }

  .steps {
    flex-direction: column;
    gap: 24px;
  }

  .step__arrow { display: none; }

  .hero {
    flex-direction: column;
    text-align: center;
    padding: 110px 24px 60px;
  }

  .hero__badges { justify-content: center; }
  .hero__actions { justify-content: center; }
  .hero__photo-placeholder { width: 180px; height: 220px; }
}

@media (max-width: 640px) {
  .subjects__grid,
  .prices__grid,
  .reviews__grid,
  .about__features {
    grid-template-columns: 1fr;
  }

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

  .nav__links { display: none; }
  .nav__burger { display: flex; }

  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0;
    background: var(--navy);
    justify-content: center;
    align-items: center;
    gap: 32px;
    z-index: 200;
  }

  .nav__links.open a { font-size: 1.25rem; }

  .section__title { margin-bottom: 32px; }
  .section { padding: 64px 0; }
}

/* ── SCROLL REVEAL ── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .6s ease, transform .6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}