:root {
  --ink: #0f0e0c;
  --paper: #f5f2ec;
  --accent: #1a6b4a;
  --accent-light: #d4ede3;
  --mid: #6b6560;
  --rule: rgba(15,14,12,0.12);
  --serif: 'DM Serif Display', Georgia, serif;
  --sans: 'DM Sans', system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.2rem 2.5rem;
  background: rgba(245,242,236,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}
.logo {
  font-family: var(--serif);
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
}
.logo span { color: var(--accent); font-style: italic; }
nav ul { list-style: none; display: flex; gap: 2rem; }
nav a { text-decoration: none; color: var(--mid); font-size: 0.88rem; font-weight: 500; letter-spacing: 0.04em; text-transform: uppercase; transition: color 0.2s; }
nav a:hover { color: var(--ink); }

/* HERO */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding-top: 5rem;
}
.hero-left {
  padding: 6rem 3rem 4rem 2.5rem;
  border-right: 1px solid var(--rule);
  display: flex; flex-direction: column; justify-content: center;
}
.eyebrow {
  font-size: 0.78rem; font-weight: 500; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent);
  margin-bottom: 1.5rem;
  display: flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ''; display: block; width: 28px; height: 1px; background: var(--accent); }
h1 {
  font-family: var(--serif);
  font-size: clamp(2.8rem, 5vw, 4.4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 1.8rem;
  color: var(--ink);
}
h1 em { font-style: italic; color: var(--accent); }
.hero-desc {
  font-size: 1.05rem; color: var(--mid); line-height: 1.75;
  max-width: 420px; margin-bottom: 2.5rem;
}
.cta-group { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn-primary {
  background: var(--ink); color: var(--paper);
  padding: 0.85rem 2rem; border-radius: 2px;
  font-family: var(--sans); font-size: 0.88rem; font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase;
  text-decoration: none; transition: background 0.2s, transform 0.1s;
  display: inline-block;
  border: none; cursor: pointer; text-align: center;
}
.btn-primary:hover { background: var(--accent); transform: translateY(-1px); }
.btn-secondary {
  border: 1px solid var(--rule); color: var(--mid);
  padding: 0.85rem 2rem; border-radius: 2px;
  font-family: var(--sans); font-size: 0.88rem; font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase;
  text-decoration: none; transition: border-color 0.2s, color 0.2s;
  display: inline-block;
}
.btn-secondary:hover { border-color: var(--ink); color: var(--ink); }
.hero-right {
  padding: 6rem 2.5rem 4rem 3rem;
  display: flex; flex-direction: column; justify-content: center; align-items: flex-start;
}
.stat-stack { width: 100%; }
.stat-item {
  padding: 1.8rem 0;
  border-bottom: 1px solid var(--rule);
  display: flex; justify-content: space-between; align-items: baseline;
}
.stat-item:first-child { border-top: 1px solid var(--rule); }
.stat-num {
  font-family: var(--serif); font-size: 3.5rem;
  color: var(--ink); line-height: 1;
}
.stat-num sup { font-size: 1.4rem; vertical-align: super; }
.stat-label { font-size: 0.88rem; color: var(--mid); font-weight: 400; text-align: right; max-width: 180px; }

/* SECTION SHARED */
section { padding: 6rem 2.5rem; }
.section-rule {
  display: flex; align-items: center; gap: 1.5rem;
  margin-bottom: 3rem;
}
.section-rule h2 {
  font-family: var(--serif); font-size: clamp(1.8rem, 3vw, 2.8rem);
  letter-spacing: -0.015em;
}
.section-rule::after { content: ''; flex: 1; height: 1px; background: var(--rule); }

/* ABOUT */
.about { border-top: 1px solid var(--rule); }
.about-grid { display: grid; grid-template-columns: 2fr 3fr; gap: 5rem; align-items: start; }
.about-tag {
  display: inline-block; background: var(--accent-light); color: var(--accent);
  font-size: 0.78rem; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.35rem 0.8rem; border-radius: 2px; margin-bottom: 1.5rem;
}
.about-name { font-family: var(--serif); font-size: 2rem; margin-bottom: 0.5rem; }
.about-title { font-size: 0.9rem; color: var(--mid); margin-bottom: 2rem; line-height: 1.6; }
.about-body p { color: var(--mid); margin-bottom: 1.2rem; line-height: 1.8; }
.about-body strong { color: var(--ink); font-weight: 500; }
.credentials { margin-top: 2rem; display: flex; flex-direction: column; gap: 0.7rem; }
.cred {
  display: flex; align-items: flex-start; gap: 0.8rem;
  font-size: 0.9rem; color: var(--ink);
}
.cred-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); margin-top: 0.55rem; flex-shrink: 0; }

/* PACKAGES */
.packages { background: var(--ink); color: var(--paper); }
.packages h2 { color: var(--paper); }
.packages .section-rule::after { background: rgba(245,242,236,0.15); }
.pkg-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5px; background: rgba(245,242,236,0.12); border: 1.5px solid rgba(245,242,236,0.12); }
.pkg-card {
  background: var(--ink);
  padding: 2.2rem 1.8rem;
  transition: background 0.25s;
  position: relative; overflow: hidden;
}
.pkg-card:hover { background: #1c1b18; }
.pkg-card.featured { background: var(--accent); }
.pkg-card.featured:hover { background: #165c3e; }
.pkg-badge {
  font-size: 0.72rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 1rem; display: block;
}
.pkg-card.featured .pkg-badge { color: rgba(245,242,236,0.75); }
.pkg-name { font-family: var(--serif); font-size: 1.55rem; margin-bottom: 0.4rem; color: var(--paper); }
.pkg-price { font-size: 2rem; font-weight: 300; color: var(--paper); margin-bottom: 1.5rem; }
.pkg-price span { font-size: 0.85rem; color: rgba(245,242,236,0.5); font-weight: 400; }
.pkg-features { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; margin-bottom: 2rem; }
.pkg-features li { font-size: 0.9rem; color: rgba(245,242,236,0.7); display: flex; gap: 0.6rem; }
.pkg-features li::before { content: '→'; color: var(--accent); flex-shrink: 0; }
.pkg-card.featured .pkg-features li::before { color: rgba(245,242,236,0.6); }
.pkg-cta {
  font-size: 0.82rem; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--paper); text-decoration: none; border-bottom: 1px solid rgba(245,242,236,0.3);
  padding-bottom: 2px; transition: border-color 0.2s;
}
.pkg-cta:hover { border-color: var(--paper); }

/* EXAMS */
.exams { border-top: 1px solid var(--rule); }
.exam-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; border: 1px solid var(--rule); }
.exam-card {
  padding: 2rem 2.2rem;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  transition: background 0.2s;
}
.exam-card:hover { background: rgba(26,107,74,0.04); }
.exam-card:nth-child(2n) { border-right: none; }
.exam-card:nth-last-child(-n+2) { border-bottom: none; }
.exam-icon { font-size: 1.4rem; margin-bottom: 0.8rem; }
.exam-name { font-family: var(--serif); font-size: 1.3rem; margin-bottom: 0.4rem; }
.exam-desc { font-size: 0.9rem; color: var(--mid); line-height: 1.65; }

/* TESTIMONIALS */
.testi { background: var(--accent-light); border-top: 1px solid rgba(26,107,74,0.15); }
.testi-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 2rem; }
.testi-card { background: #fff; padding: 1.8rem; border-radius: 2px; }
.testi-text { font-size: 0.95rem; color: var(--ink); line-height: 1.75; margin-bottom: 1.2rem; font-style: italic; }
.testi-name { font-size: 0.82rem; font-weight: 500; color: var(--accent); text-transform: uppercase; letter-spacing: 0.06em; }

/* CONTACT */
.contact { border-top: 1px solid var(--rule); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6rem; }
.contact-info p { color: var(--mid); line-height: 1.8; margin-bottom: 1.5rem; }
.contact-detail { display: flex; align-items: flex-start; gap: 1rem; margin-bottom: 1rem; font-size: 0.9rem; }
.contact-detail-label { color: var(--mid); min-width: 80px; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.06em; padding-top: 2px; }
form { display: flex; flex-direction: column; gap: 1rem; }
input, select, textarea {
  background: transparent; border: 1px solid var(--rule);
  padding: 0.9rem 1rem; font-family: var(--sans); font-size: 0.95rem;
  color: var(--ink); border-radius: 2px; transition: border-color 0.2s;
  width: 100%;
}
input::placeholder, textarea::placeholder { color: var(--mid); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }
textarea { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-error { font-size: 0.82rem; color: #c0392b; margin-top: -0.5rem; }

/* FOOTER */
footer {
  border-top: 1px solid var(--rule);
  padding: 2rem 2.5rem;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.82rem; color: var(--mid);
}
footer a { color: var(--mid); text-decoration: none; }
footer a:hover { color: var(--ink); }

/* ANIMATIONS */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-left > * { animation: fadeUp 0.7s ease both; }
.hero-left > *:nth-child(1) { animation-delay: 0.05s; }
.hero-left > *:nth-child(2) { animation-delay: 0.15s; }
.hero-left > *:nth-child(3) { animation-delay: 0.25s; }
.hero-left > *:nth-child(4) { animation-delay: 0.35s; }

/* RESPONSIVE */
@media (max-width: 900px) {
  nav ul { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-right { border-top: 1px solid var(--rule); border-right: none; }
  .hero-left { padding: 4rem 1.5rem 3rem; border-right: none; }
  .hero-right { padding: 3rem 1.5rem; }
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .pkg-grid { grid-template-columns: 1fr; }
  .exam-grid { grid-template-columns: 1fr; }
  .exam-card:nth-child(n) { border-right: none; }
  .testi-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .form-row { grid-template-columns: 1fr; }
  section { padding: 4rem 1.5rem; }
  footer { flex-direction: column; gap: 0.5rem; text-align: center; }
}