:root {
  --primary-color: #0d9488; /* Teal */
  --primary-dark: #0f766e;
  --secondary: #0f172a; /* Slate 900 */
  --accent-amber: #d97706;
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --font-heading: 'Merriweather', Georgia, serif;
  --font-sans: 'Inter', system-ui, sans-serif;
}

* { margin:0; padding:0; box-sizing:border-box; }
body { font-family: var(--font-sans); color: var(--text-main); background: var(--bg-light); line-height: 1.6; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Plan Banner Strip */
.plan-banner-strip {
  background: var(--secondary);
  color: #f8fafc;
  padding: 8px 0;
  font-size: 0.82rem;
  border-bottom: 2px solid var(--primary-color);
}
.plan-banner-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.plan-tag-starter {
  background: var(--primary-color);
  color: #ffffff;
  padding: 2px 10px;
  border-radius: 4px;
  font-weight: 800;
  text-transform: uppercase;
  font-size: 0.75rem;
}
.plan-pricing-highlight { color: #5eead4; font-weight: 600; }

/* Header & Menu */
.header {
  background: var(--bg-white);
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}
.brand-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: #ffffff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}
.brand-text h1 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--secondary);
  line-height: 1.2;
}
.brand-text p {
  font-size: 0.78rem;
  color: var(--primary-dark);
  font-weight: 600;
}
.nav-menu {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.nav-menu a {
  text-decoration: none;
  color: var(--text-main);
  font-size: 0.88rem;
  font-weight: 600;
  transition: color 0.2s;
}
.nav-menu a:hover { color: var(--primary-color); }
.btn-fee-pill {
  background: #ea580c;
  color: #ffffff !important;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 700 !important;
}

/* Hero Section */
.hero {
  background: linear-gradient(rgba(15, 23, 42, 0.88), rgba(13, 148, 136, 0.85)), url('https://images.unsplash.com/photo-1541829070764-84a7d30dd3f3?auto=format&fit=crop&w=1500&q=80') center/cover;
  color: #ffffff;
  padding: 85px 0;
  text-align: center;
}
.hero-tag {
  display: inline-block;
  background: rgba(13, 148, 136, 0.3);
  border: 1px solid var(--primary-color);
  color: #5eead4;
  padding: 5px 15px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 15px;
}
.hero h2 {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  margin-bottom: 14px;
  line-height: 1.2;
}
.hero p {
  font-size: 1.12rem;
  max-width: 720px;
  margin: 0 auto 25px;
  color: #cbd5e1;
}
.hero-btns {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
}
.btn-primary {
  background: var(--primary-color);
  color: #ffffff;
  padding: 12px 26px;
  border-radius: 6px;
  font-weight: 700;
  text-decoration: none;
}
.btn-fee {
  background: #ea580c;
  color: #ffffff;
  padding: 12px 26px;
  border-radius: 6px;
  font-weight: 700;
  text-decoration: none;
}

/* Quick Bar */
.quick-bar {
  background: #ffffff;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.06);
  padding: 20px 30px;
  margin: -35px auto 40px;
  position: relative;
  z-index: 10;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}
.quick-item { border-right: 1px solid var(--border); }
.quick-item:last-child { border-right: none; }
.quick-item strong { display: block; font-size: 1.8rem; color: var(--primary-dark); font-family: var(--font-heading); }
.quick-item span { font-size: 0.82rem; color: var(--text-muted); text-transform: uppercase; font-weight: 600; }

/* Sections */
.section { padding: 60px 0; }
.section-title {
  text-align: center;
  font-family: var(--font-heading);
  font-size: 2.2rem;
  color: var(--secondary);
  margin-bottom: 10px;
}
.section-sub {
  text-align: center;
  color: var(--text-muted);
  max-width: 650px;
  margin: 0 auto 40px;
}

/* Academic Wings Grid */
.wings-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.wing-card {
  background: #ffffff;
  border-radius: 10px;
  padding: 24px;
  border: 1px solid var(--border);
  box-shadow: 0 2px 6px rgba(0,0,0,0.04);
}
.wing-card h4 {
  font-family: var(--font-heading);
  color: var(--primary-dark);
  font-size: 1.15rem;
  margin-bottom: 8px;
}
.wing-card p { font-size: 0.88rem; color: var(--text-muted); }

/* GuruDesk Online Fee Portal Module */
.feepay-box {
  background: linear-gradient(135deg, #0f172a, #134e4a);
  color: #ffffff;
  border-radius: 12px;
  padding: 40px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}
.feepay-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 35px;
  align-items: center;
}
.form-input {
  width: 100%;
  padding: 10px 14px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.1);
  color: #ffffff;
  font-size: 0.95rem;
  margin-top: 6px;
}
.form-input:focus { outline: none; border-color: #5eead4; }

/* Downloads */
.download-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.download-card {
  background: #ffffff;
  border-radius: 8px;
  padding: 20px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.download-card h5 { font-size: 0.95rem; color: var(--secondary); margin-bottom: 4px; }
.download-card span { font-size: 0.78rem; color: var(--text-muted); }
.btn-dl {
  background: var(--primary-color);
  color: #ffffff;
  padding: 6px 12px;
  border-radius: 4px;
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 600;
}

/* Footer */
.footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 50px 0 20px;
  border-top: 4px solid var(--primary-color);
  font-size: 0.88rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 30px;
  margin-bottom: 30px;
}
.footer-col h4 { color: #ffffff; margin-bottom: 12px; }
.footer-col a { color: #94a3b8; text-decoration: none; }
.footer-col a:hover { color: var(--primary-color); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .hero h2 { font-size: 2rem; }
  .quick-bar { grid-template-columns: 1fr 1fr; }
  .wings-grid { grid-template-columns: 1fr 1fr; }
  .feepay-grid { grid-template-columns: 1fr; }
  .download-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-menu { display: none; }
}