/* ========================================
   TopUniversities.info — Core Stylesheet
   Version: 1.0.0
   ======================================== */

/* CSS Variables */
:root {
  --tui-blue:     #1a56db;
  --tui-blue-dk:  #1340b0;
  --tui-green:    #057a55;
  --tui-green-lt: #def7ec;
  --tui-orange:   #e3a008;
  --tui-red:      #c81e1e;
  --tui-gray:     #6b7280;
  --tui-gray-lt:  #f3f4f6;
  --tui-gray-bd:  #e5e7eb;
  --tui-text:     #111827;
  --tui-text-sm:  #374151;
  --tui-white:    #ffffff;
  --tui-radius:   8px;
  --tui-shadow:   0 1px 4px rgba(0,0,0,.10);
  --tui-shadow-md:0 4px 16px rgba(0,0,0,.12);
  --tui-font:     'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --tui-max-w:    1200px;
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--tui-font); color: var(--tui-text); line-height: 1.6; background: var(--tui-white); }
a { color: var(--tui-blue); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }

/* Container */
.tui-container { max-width: var(--tui-max-w); margin: 0 auto; padding: 0 16px; }

/* ========== BUTTONS ========== */
.tui-btn-primary,
.tui-btn-secondary,
.tui-btn-green,
.tui-btn-card {
  display: inline-block;
  padding: 10px 22px;
  border-radius: var(--tui-radius);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: background .2s, transform .1s;
  text-align: center;
}
.tui-btn-primary  { background: var(--tui-blue);  color: var(--tui-white); }
.tui-btn-primary:hover  { background: var(--tui-blue-dk); color: var(--tui-white); text-decoration: none; }
.tui-btn-secondary{ background: var(--tui-white); color: var(--tui-blue); border: 2px solid var(--tui-blue); }
.tui-btn-secondary:hover{ background: var(--tui-gray-lt); text-decoration: none; }
.tui-btn-green    { background: var(--tui-green); color: var(--tui-white); }
.tui-btn-green:hover { background: #046644; color: var(--tui-white); text-decoration: none; }
.tui-btn-card     { background: var(--tui-blue); color: var(--tui-white); font-size: 0.88rem; padding: 7px 14px; margin-top: 10px; display: block; text-align: center; }
.tui-btn-card:hover { background: var(--tui-blue-dk); color: var(--tui-white); text-decoration: none; }

/* ========== BADGES ========== */
.tui-badge-featured { background: var(--tui-orange); color: #fff; font-size: .72rem; font-weight: 700; padding: 2px 8px; border-radius: 4px; display: inline-block; margin-bottom: 6px; }
.tui-badge-partial  { background: #fef3c7; color: #92400e; font-size: .72rem; font-weight: 600; padding: 2px 8px; border-radius: 4px; display: inline-block; margin-bottom: 6px; }
.tui-badge-verified { background: var(--tui-green-lt); color: var(--tui-green); font-size: .72rem; font-weight: 600; padding: 2px 8px; border-radius: 4px; display: inline-block; }
.tui-badge-needs-review { background: #fee2e2; color: var(--tui-red); font-size: .72rem; font-weight: 600; padding: 2px 8px; border-radius: 4px; display: inline-block; }

/* ========== SEARCH WIDGET ========== */
.tui-search-widget { background: var(--tui-white); border-radius: 12px; padding: 24px; box-shadow: var(--tui-shadow-md); }
.tui-search-form .tui-search-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; }
.tui-field { display: flex; flex-direction: column; flex: 1 1 180px; }
.tui-field label { font-size: .82rem; font-weight: 600; color: var(--tui-text-sm); margin-bottom: 4px; }
.tui-field input, .tui-field select {
  padding: 9px 12px;
  border: 1.5px solid var(--tui-gray-bd);
  border-radius: var(--tui-radius);
  font-size: .93rem;
  background: var(--tui-white);
  color: var(--tui-text);
  outline: none;
}
.tui-field input:focus, .tui-field select:focus { border-color: var(--tui-blue); }
.tui-field.tui-submit { flex: 0 0 auto; }
.tui-field.tui-submit button { width: 100%; white-space: nowrap; }

/* ========== INSTITUTION CARDS GRID ========== */
.tui-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 20px;
  margin: 24px 0;
}
.tui-card {
  background: var(--tui-white);
  border: 1.5px solid var(--tui-gray-bd);
  border-radius: 10px;
  padding: 18px 16px;
  box-shadow: var(--tui-shadow);
  transition: box-shadow .2s, transform .15s;
  position: relative;
}
.tui-card:hover { box-shadow: var(--tui-shadow-md); transform: translateY(-2px); }
.tui-card-featured { border-color: var(--tui-orange); border-width: 2px; }
.tui-card-title { font-size: 1.02rem; font-weight: 700; line-height: 1.35; margin-bottom: 6px; }
.tui-card-title a { color: var(--tui-text); }
.tui-card-title a:hover { color: var(--tui-blue); text-decoration: none; }
.tui-card-meta { font-size: .82rem; color: var(--tui-gray); margin-bottom: 10px; }
.tui-card-table { width: 100%; border-collapse: collapse; font-size: .83rem; margin-bottom: 8px; }
.tui-card-table th { text-align: left; color: var(--tui-gray); font-weight: 500; padding: 3px 6px 3px 0; width: 48%; }
.tui-card-table td { color: var(--tui-text); font-weight: 600; padding: 3px 0; }
.tui-card-courses { font-size: .8rem; color: var(--tui-gray); line-height: 1.4; }

/* ========== QUICK FACTS BOX ========== */
.tui-quick-facts {
  background: linear-gradient(135deg, #eff6ff 0%, #ecfdf5 100%);
  border: 1.5px solid #dbeafe;
  border-radius: 12px;
  padding: 24px;
  margin: 0 0 32px;
}
.tui-quick-facts h2 { font-size: 1.1rem; color: var(--tui-blue-dk); margin-bottom: 16px; }
.tui-facts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}
.tui-fact-item { display: flex; flex-direction: column; }
.tui-fact-label { font-size: .75rem; font-weight: 600; color: var(--tui-gray); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 2px; }
.tui-fact-value { font-size: .97rem; font-weight: 700; color: var(--tui-text); }
.tui-fact-value a { color: var(--tui-blue); }
.tui-fact-value.tui-verified { color: var(--tui-green); }
.tui-fact-value.tui-partial  { color: var(--tui-orange); }

/* ========== RESPONSIVE TABLES ========== */
.tui-table-wrap { overflow-x: auto; margin: 16px 0; -webkit-overflow-scrolling: touch; }
.tui-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}
.tui-table th {
  background: var(--tui-blue);
  color: var(--tui-white);
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
}
.tui-table td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--tui-gray-bd);
  vertical-align: top;
}
.tui-table tr:nth-child(even) td { background: var(--tui-gray-lt); }
.tui-table tr:hover td { background: #eff6ff; }

/* ========== FAQ SECTION ========== */
.tui-faq { margin: 32px 0; }
.tui-faq h2 { font-size: 1.3rem; margin-bottom: 16px; color: var(--tui-text); }
.tui-faq-item { border: 1px solid var(--tui-gray-bd); border-radius: var(--tui-radius); margin-bottom: 8px; overflow: hidden; }
.tui-faq-q {
  padding: 14px 16px;
  background: var(--tui-gray-lt);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}
.tui-faq-q::after { content: '+'; font-size: 1.2rem; color: var(--tui-blue); }
.tui-faq-item.open .tui-faq-q::after { content: '−'; }
.tui-faq-a { padding: 14px 16px; display: none; font-size: .92rem; color: var(--tui-text-sm); line-height: 1.65; }
.tui-faq-item.open .tui-faq-a { display: block; }

/* ========== CTA BOX ========== */
.tui-cta-box {
  background: linear-gradient(135deg, #1a56db 0%, #057a55 100%);
  color: var(--tui-white);
  border-radius: 12px;
  padding: 32px 28px;
  text-align: center;
  margin: 40px 0;
}
.tui-cta-box h3 { font-size: 1.4rem; margin-bottom: 8px; }
.tui-cta-box p  { font-size: .95rem; opacity: .9; margin-bottom: 20px; }
.tui-cta-buttons { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.tui-cta-buttons a {
  background: var(--tui-white);
  color: var(--tui-blue);
  padding: 10px 20px;
  border-radius: var(--tui-radius);
  font-weight: 700;
  font-size: .9rem;
  transition: transform .15s;
}
.tui-cta-buttons a:hover { transform: scale(1.04); text-decoration: none; }
.tui-cta-buttons a.tui-wa { background: #25d366; color: #fff; }

/* ========== DISCLAIMER / DATA WARNING ========== */
.tui-disclaimer {
  background: #fffbeb;
  border-left: 4px solid var(--tui-orange);
  border-radius: 0 var(--tui-radius) var(--tui-radius) 0;
  padding: 12px 16px;
  font-size: .84rem;
  color: #78350f;
  margin: 16px 0;
}
.tui-verified-note {
  background: var(--tui-green-lt);
  border-left: 4px solid var(--tui-green);
  border-radius: 0 var(--tui-radius) var(--tui-radius) 0;
  padding: 10px 14px;
  font-size: .82rem;
  color: #064e3b;
  margin: 12px 0;
}

/* ========== BREADCRUMBS ========== */
.tui-breadcrumb { font-size: .82rem; color: var(--tui-gray); padding: 10px 0; }
.tui-breadcrumb a { color: var(--tui-blue); }
.tui-breadcrumb span { color: var(--tui-gray); }

/* ========== AD SLOTS ========== */
.tui-ad-slot {
  display: block;
  width: 100%;
  min-height: 90px;
  background: var(--tui-gray-lt);
  border: 1px dashed var(--tui-gray-bd);
  border-radius: var(--tui-radius);
  margin: 24px 0;
  text-align: center;
  line-height: 90px;
  color: var(--tui-gray);
  font-size: .8rem;
}
.tui-ad-slot-sidebar { min-height: 250px; line-height: 250px; }

/* ========== WHATSAPP STICKY ========== */
.tui-wa-btn {
  position: fixed;
  bottom: 20px;
  right: 16px;
  background: #25d366;
  color: var(--tui-white) !important;
  border-radius: 50px;
  padding: 10px 18px 10px 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: .9rem;
  box-shadow: 0 4px 16px rgba(37,211,102,.4);
  z-index: 9999;
  text-decoration: none !important;
  transition: transform .2s;
}
.tui-wa-btn:hover { transform: scale(1.06); }
@media (min-width: 769px) { .tui-wa-btn span { display: inline; } }

/* ========== HERO SECTION ========== */
.tui-hero {
  background: linear-gradient(135deg, #0f3460 0%, #1a56db 60%, #0e9f6e 100%);
  color: var(--tui-white);
  padding: 64px 16px 56px;
  text-align: center;
}
.tui-hero h1 { font-size: clamp(1.6rem, 4vw, 2.6rem); font-weight: 800; line-height: 1.25; margin-bottom: 14px; }
.tui-hero p.sub { font-size: clamp(.9rem, 2vw, 1.1rem); opacity: .9; max-width: 680px; margin: 0 auto 28px; }
.tui-hero .tui-search-widget { max-width: 860px; margin: 0 auto; }

/* ========== SECTION HEADINGS ========== */
.tui-section { padding: 48px 0; }
.tui-section-alt { background: var(--tui-gray-lt); }
.tui-section-title { font-size: 1.5rem; font-weight: 800; margin-bottom: 6px; color: var(--tui-text); }
.tui-section-sub   { color: var(--tui-gray); font-size: .95rem; margin-bottom: 24px; }

/* ========== STATE / DISTRICT GRID ========== */
.tui-state-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
  margin: 16px 0;
}
.tui-state-tile {
  background: var(--tui-white);
  border: 1.5px solid var(--tui-gray-bd);
  border-radius: 8px;
  padding: 14px 10px;
  text-align: center;
  font-size: .88rem;
  font-weight: 600;
  color: var(--tui-text);
  transition: border-color .15s, background .15s;
  cursor: pointer;
}
.tui-state-tile:hover { border-color: var(--tui-blue); background: #eff6ff; text-decoration: none; }
.tui-state-tile .count { font-size: .76rem; color: var(--tui-gray); font-weight: 400; }

/* ========== TRUST BAR ========== */
.tui-trust-bar {
  background: var(--tui-white);
  border: 1.5px solid var(--tui-gray-bd);
  border-radius: 10px;
  padding: 20px 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  justify-content: center;
  margin: 24px 0;
}
.tui-trust-item { display: flex; align-items: center; gap: 8px; font-size: .88rem; font-weight: 600; color: var(--tui-text-sm); }
.tui-trust-icon { font-size: 1.3rem; }

/* ========== FOOTER ========== */
.tui-footer {
  background: #0f172a;
  color: #cbd5e1;
  padding: 40px 16px 20px;
  margin-top: 48px;
  font-size: .88rem;
}
.tui-footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 28px;
  max-width: var(--tui-max-w);
  margin: 0 auto 28px;
}
.tui-footer h4 { color: #fff; font-size: .95rem; margin-bottom: 10px; }
.tui-footer a  { color: #94a3b8; display: block; margin-bottom: 5px; }
.tui-footer a:hover { color: #fff; text-decoration: none; }
.tui-footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 16px;
  text-align: center;
  font-size: .8rem;
  color: #64748b;
  max-width: var(--tui-max-w);
  margin: 0 auto;
}
.tui-footer-disclaimer {
  background: #1e293b;
  border-radius: 8px;
  padding: 12px 16px;
  font-size: .78rem;
  color: #94a3b8;
  line-height: 1.6;
  margin-bottom: 20px;
  max-width: var(--tui-max-w);
  margin-left: auto;
  margin-right: auto;
}

/* ========== INSTITUTION SINGLE PAGE ========== */
.tui-institution-header { margin-bottom: 32px; }
.tui-institution-header h1 { font-size: clamp(1.3rem, 3vw, 1.9rem); font-weight: 800; line-height: 1.3; margin-bottom: 8px; }
.tui-section-content { margin: 28px 0; }
.tui-section-content h2 { font-size: 1.15rem; font-weight: 700; color: var(--tui-blue-dk); margin-bottom: 12px; padding-bottom: 6px; border-bottom: 2px solid var(--tui-gray-bd); }
.tui-quick-take ul { padding-left: 18px; }
.tui-quick-take li { margin-bottom: 7px; font-size: .95rem; line-height: 1.55; }

/* ========== COMPARE TABLE ========== */
.tui-compare-table th:first-child { background: #f8fafc; color: var(--tui-text); font-weight: 700; }
.tui-compare-table td { text-align: center; }
.tui-compare-winner { color: var(--tui-green); font-weight: 700; }

/* ========== SIDEBAR ========== */
.tui-layout-with-sidebar { display: grid; grid-template-columns: 1fr 300px; gap: 28px; align-items: start; }
.tui-sidebar { position: sticky; top: 80px; }
.tui-sidebar-card { background: var(--tui-gray-lt); border-radius: 10px; padding: 18px; margin-bottom: 16px; }
.tui-sidebar-card h4 { font-size: .95rem; font-weight: 700; margin-bottom: 10px; }

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .tui-layout-with-sidebar { grid-template-columns: 1fr; }
  .tui-sidebar { position: static; }
  .tui-facts-grid { grid-template-columns: 1fr 1fr; }
  .tui-hero { padding: 40px 16px 36px; }
  .tui-search-form .tui-search-row { flex-direction: column; }
  .tui-field { flex: 1 1 100%; }
}
@media (max-width: 480px) {
  .tui-facts-grid { grid-template-columns: 1fr; }
  .tui-cards-grid { grid-template-columns: 1fr; }
  .tui-cta-buttons { flex-direction: column; align-items: center; }
}