/* ── RESET & BASE ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #ffffff;
  --surface: #f8f9fc;
  --border: #e2e6f0;
  --navy: #1a2340;
  --blue: #2563eb;
  --blue-light: #eff6ff;
  --green: #059669;
  --green-light: #ecfdf5;
  --text: #1a2340;
  --dim: #5a6480;
  --muted: #9aa3be;
  --radius: 12px;
  --shadow: 0 2px 16px rgba(26,35,64,0.08);
  --shadow-lg: 0 8px 40px rgba(26,35,64,0.13);
}
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Georgia', 'Times New Roman', serif;
  line-height: 1.7;
  font-size: 17px;
}
h1,h2,h3,h4,h5 { font-family: 'Georgia', serif; font-weight: 700; line-height: 1.2; color: var(--navy); }
p { color: var(--dim); }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }

/* ── LAYOUT ── */
.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }

/* ── NAV ── */
nav {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 1px 8px rgba(26,35,64,0.06);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 70px; max-width: 1080px; margin: 0 auto; padding: 0 24px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo .logo-icon {
  width: 42px; height: 42px; border-radius: 10px;
  background: linear-gradient(135deg, #2563eb, #1a40a8);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 900; font-size: 18px; font-family: Georgia, serif;
}
.nav-logo span { font-weight: 700; font-size: 20px; color: var(--navy); font-family: Georgia, serif; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { color: var(--dim); font-size: 15px; font-family: 'Arial', sans-serif; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover, .nav-links a.active { color: var(--navy); text-decoration: none; }
.nav-cta {
  background: var(--blue); color: #fff !important;
  padding: 10px 22px; border-radius: 8px; font-weight: 600 !important;
}
.nav-cta:hover { background: #1d4ed8; text-decoration: none !important; }
.hamburger { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--navy); margin: 5px 0; border-radius: 2px; }

/* ── BUTTONS ── */
.btn {
  display: inline-block; padding: 13px 28px; border-radius: 8px;
  font-weight: 600; font-size: 15px; cursor: pointer; border: none;
  font-family: Arial, sans-serif; transition: all 0.2s; text-align: center;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: #1d4ed8; text-decoration: none; color: #fff; }
.btn-outline { background: transparent; border: 2px solid var(--border); color: var(--dim); }
.btn-outline:hover { border-color: var(--blue); color: var(--blue); text-decoration: none; }
.btn-green { background: var(--green); color: #fff; }
.btn-green:hover { background: #047857; text-decoration: none; color: #fff; }
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-lg { padding: 16px 40px; font-size: 17px; }

/* ── HERO (HOME) ── */
.hero {
  background: linear-gradient(135deg, #f0f4ff 0%, #ffffff 60%);
  border-bottom: 1px solid var(--border);
  padding: 90px 0 80px;
}
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-tag {
  display: inline-block; background: var(--blue-light); color: var(--blue);
  padding: 5px 14px; border-radius: 999px; font-size: 12px; font-weight: 700;
  letter-spacing: 0.5px; text-transform: uppercase; margin-bottom: 20px;
  font-family: Arial, sans-serif;
}
.hero h1 { font-size: clamp(32px, 4vw, 52px); margin-bottom: 20px; }
.hero p { font-size: 18px; color: var(--dim); margin-bottom: 36px; line-height: 1.8; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-image {
  background: linear-gradient(135deg, #e0e9ff, #f0f4ff);
  border-radius: 20px; padding: 48px 40px; text-align: center;
  border: 1px solid var(--border);
}
.hero-image .big-icon { font-size: 72px; margin-bottom: 16px; }
.hero-image h3 { color: var(--navy); font-size: 20px; margin-bottom: 8px; }
.hero-image p { font-size: 14px; color: var(--dim); margin: 0; }
.trust-bar {
  display: flex; gap: 32px; flex-wrap: wrap; margin-top: 48px;
  padding-top: 32px; border-top: 1px solid var(--border);
}
.trust-item { display: flex; align-items: center; gap: 8px; }
.trust-item .icon { font-size: 20px; }
.trust-item span { font-size: 14px; color: var(--dim); font-family: Arial, sans-serif; }

/* ── SECTION HEADERS ── */
.section-header { text-align: center; margin-bottom: 52px; }
.section-header .label {
  display: inline-block; background: var(--blue-light); color: var(--blue);
  padding: 4px 14px; border-radius: 999px; font-size: 11px; font-weight: 700;
  letter-spacing: 1px; text-transform: uppercase; margin-bottom: 14px;
  font-family: Arial, sans-serif;
}
.section-header h2 { font-size: clamp(26px, 3.5vw, 40px); margin-bottom: 14px; }
.section-header p { color: var(--dim); font-size: 17px; max-width: 560px; margin: 0 auto; }

/* ── CARDS ── */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px 28px;
  box-shadow: var(--shadow); transition: box-shadow 0.2s, transform 0.2s;
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.card-icon { font-size: 36px; margin-bottom: 16px; }
.card h3 { font-size: 18px; margin-bottom: 10px; }
.card p { font-size: 14px; color: var(--dim); line-height: 1.7; margin: 0; }

/* ── BLOG LIST ── */
.blog-list { display: flex; flex-direction: column; gap: 0; }
.blog-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0; border-bottom: 1px solid var(--border);
  gap: 20px; cursor: pointer; transition: background 0.15s;
}
.blog-item:hover .blog-title { color: var(--blue); }
.blog-item-left { display: flex; align-items: center; gap: 16px; flex: 1; }
.blog-cat {
  background: var(--blue-light); color: var(--blue);
  padding: 3px 10px; border-radius: 999px; font-size: 11px;
  font-weight: 700; white-space: nowrap; font-family: Arial, sans-serif;
}
.blog-title { font-size: 16px; font-weight: 600; color: var(--navy); transition: color 0.2s; font-family: Georgia, serif; }
.blog-date { font-size: 13px; color: var(--muted); white-space: nowrap; font-family: Arial, sans-serif; }

/* ── BLOG POST ── */
.post-header { background: var(--surface); border-bottom: 1px solid var(--border); padding: 60px 0 48px; }
.post-meta { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.post-body { max-width: 720px; margin: 0 auto; padding: 48px 24px; }
.post-body h2 { margin: 36px 0 14px; font-size: 26px; }
.post-body h3 { margin: 28px 0 10px; font-size: 20px; }
.post-body p { margin-bottom: 20px; line-height: 1.9; color: var(--dim); }
.post-body ul, .post-body ol { margin: 0 0 20px 24px; color: var(--dim); }
.post-body li { margin-bottom: 8px; line-height: 1.8; }
.post-body blockquote {
  border-left: 4px solid var(--blue); padding: 16px 24px;
  background: var(--blue-light); border-radius: 0 8px 8px 0;
  margin: 24px 0; font-style: italic; color: var(--navy);
}

/* ── COMMENTS ── */
.comments-section { max-width: 720px; margin: 0 auto; padding: 0 24px 60px; }
.comments-section h3 { font-size: 22px; margin-bottom: 28px; padding-top: 40px; border-top: 1px solid var(--border); }
.comment-form { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; margin-bottom: 36px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-group label { font-size: 13px; font-weight: 600; color: var(--navy); font-family: Arial, sans-serif; }
.form-group input, .form-group textarea, .form-group select {
  padding: 11px 14px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 15px; font-family: inherit; color: var(--text);
  background: #fff; transition: border-color 0.2s; outline: none;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--blue); }
.form-group textarea { min-height: 100px; resize: vertical; }
.comment-item {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px 24px; margin-bottom: 16px;
}
.comment-author { font-weight: 700; color: var(--navy); font-size: 15px; font-family: Arial, sans-serif; }
.comment-date { font-size: 12px; color: var(--muted); margin-left: 10px; font-family: Arial, sans-serif; }
.comment-text { margin-top: 10px; color: var(--dim); font-size: 15px; line-height: 1.7; }
.comment-pending { font-size: 12px; color: var(--muted); font-style: italic; margin-top: 6px; font-family: Arial, sans-serif; }

/* ── TESTIMONIALS ── */
.testimonial {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; position: relative;
}
.testimonial::before { content: '"'; font-size: 60px; color: var(--blue); opacity: 0.2; position: absolute; top: 10px; left: 20px; line-height: 1; font-family: Georgia; }
.testimonial p { font-style: italic; color: var(--dim); font-size: 16px; line-height: 1.8; margin-bottom: 16px; }
.testimonial-author { font-weight: 700; font-size: 14px; color: var(--navy); font-family: Arial, sans-serif; }
.testimonial-role { font-size: 13px; color: var(--muted); font-family: Arial, sans-serif; }

/* ── PRICING ── */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.pricing-card {
  background: #fff; border: 2px solid var(--border);
  border-radius: 16px; padding: 36px 28px; text-align: center;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.pricing-card.featured { border-color: var(--blue); box-shadow: var(--shadow-lg); }
.pricing-card .featured-badge {
  background: var(--blue); color: #fff; font-size: 11px; font-weight: 700;
  padding: 4px 12px; border-radius: 999px; display: inline-block;
  margin-bottom: 16px; font-family: Arial, sans-serif;
}
.pricing-card h3 { font-size: 20px; margin-bottom: 8px; }
.pricing-card .price { font-size: 42px; font-weight: 900; color: var(--navy); margin: 16px 0 4px; font-family: Arial, sans-serif; }
.pricing-card .price span { font-size: 18px; font-weight: 400; color: var(--muted); }
.pricing-card .desc { font-size: 14px; color: var(--dim); margin-bottom: 24px; }
.pricing-features { list-style: none; text-align: left; margin-bottom: 28px; }
.pricing-features li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--dim); padding: 6px 0; font-family: Arial, sans-serif; }
.pricing-features li::before { content: "✓"; color: var(--green); font-weight: 700; }

/* ── ABOUT ── */
.about-grid { display: grid; grid-template-columns: 1fr 2fr; gap: 60px; align-items: start; }
.about-photo {
  background: linear-gradient(135deg, #e0e9ff, #f0f4ff);
  border-radius: 16px; padding: 40px 30px; text-align: center;
  border: 1px solid var(--border);
}
.about-photo .avatar { font-size: 72px; margin-bottom: 16px; display: block; }
.about-photo h3 { font-size: 20px; margin-bottom: 6px; }
.about-photo p { font-size: 14px; color: var(--dim); margin: 0; }
.about-content h2 { font-size: 36px; margin-bottom: 20px; }
.about-content p { margin-bottom: 20px; line-height: 1.9; }
.credentials { display: flex; flex-direction: column; gap: 12px; margin-top: 28px; }
.credential-item { display: flex; align-items: flex-start; gap: 14px; padding: 16px; background: var(--surface); border-radius: 10px; border: 1px solid var(--border); }
.credential-icon { font-size: 24px; }
.credential-text h4 { font-size: 15px; margin-bottom: 4px; color: var(--navy); }
.credential-text p { font-size: 13px; color: var(--dim); margin: 0; }

/* ── FOOTER ── */
footer {
  background: var(--navy); color: #a0aec0;
  padding: 60px 0 32px; border-top: 1px solid #2d3748;
}
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand .logo-text { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 12px; font-family: Georgia, serif; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 260px; }
.footer-col h4 { color: #fff; font-size: 14px; font-weight: 700; margin-bottom: 16px; font-family: Arial, sans-serif; letter-spacing: 0.5px; text-transform: uppercase; }
.footer-col a { display: block; color: #a0aec0; font-size: 14px; margin-bottom: 10px; font-family: Arial, sans-serif; transition: color 0.2s; }
.footer-col a:hover { color: #fff; text-decoration: none; }
.footer-bottom { border-top: 1px solid #2d3748; padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { font-size: 13px; font-family: Arial, sans-serif; }

/* ── STUDENTS SECTION (fun) ── */
.students-hero {
  background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
  color: #fff; padding: 90px 0; text-align: center;
}
.students-hero h1 { color: #fff; font-size: clamp(36px, 5vw, 64px); }
.students-hero p { color: rgba(255,255,255,0.7); font-size: 18px; max-width: 560px; margin: 20px auto 36px; }
.neon-text { color: #a855f7; text-shadow: 0 0 20px rgba(168,85,247,0.5); }
.fun-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.fun-card {
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px; padding: 28px 20px; text-align: center; color: #fff;
  backdrop-filter: blur(10px);
}
.fun-card .emoji { font-size: 44px; display: block; margin-bottom: 14px; }
.fun-card h3 { color: #fff; font-size: 16px; margin-bottom: 8px; }
.fun-card p { color: rgba(255,255,255,0.6); font-size: 13px; margin: 0; }

/* ── ADMIN ── */
.admin-header { background: var(--navy); color: #fff; padding: 20px 0; }
.admin-header h1 { color: #fff; font-size: 22px; }
.admin-nav { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }
.admin-tab { background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.7); border: none; padding: 8px 18px; border-radius: 6px; cursor: pointer; font-size: 14px; font-family: Arial, sans-serif; transition: all 0.2s; }
.admin-tab.active { background: var(--blue); color: #fff; }
.admin-panel { padding: 36px 0; }
.admin-panel h2 { font-size: 22px; margin-bottom: 24px; }
.admin-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin-bottom: 16px; }
.admin-card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.admin-card h3 { font-size: 16px; margin: 0; }
.btn-danger { background: #ef4444; color: #fff; }
.btn-danger:hover { background: #dc2626; text-decoration: none; color: #fff; }
.login-box { max-width: 400px; margin: 100px auto; background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 48px 40px; box-shadow: var(--shadow-lg); text-align: center; }
.login-box h2 { margin-bottom: 8px; }
.login-box p { color: var(--dim); margin-bottom: 28px; font-size: 15px; }
.alert { padding: 12px 16px; border-radius: 8px; font-size: 14px; margin-bottom: 16px; font-family: Arial, sans-serif; }
.alert-success { background: var(--green-light); color: var(--green); border: 1px solid #a7f3d0; }
.alert-error { background: #fef2f2; color: #dc2626; border: 1px solid #fecaca; }

/* ── MOBILE ── */
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-image { display: none; }
  .nav-links { display: none; }
  .hamburger { display: block; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}