/* ===== LETS LEARN INSTITUTE – MAIN STYLESHEET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary:    #1a237e;
  --primary-lt: #283593;
  --primary-dk: #0d1445;
  --accent:     #ff6f00;
  --accent-lt:  #ffa726;
  --accent-dk:  #e65100;
  --text:       #1c1c1c;
  --text-muted: #5f6368;
  --bg-light:   #f5f7fa;
  --bg-white:   #ffffff;
  --border:     #e0e4ef;
  --success:    #27ae60;
  --radius:     10px;
  --radius-lg:  16px;
  --shadow:     0 4px 20px rgba(26,35,126,.08);
  --shadow-lg:  0 8px 40px rgba(26,35,126,.14);
  --transition: .25s ease;
}

html { scroll-behavior: smooth; }
body { font-family: 'Poppins', sans-serif; color: var(--text); background: var(--bg-white); font-size: 15px; line-height: 1.75; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ─── CONTAINER ─── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section    { padding: 80px 0; }
.section-alt  { background: var(--bg-light); }
.section-dark { background: var(--primary); color: #fff; }

/* ─── TYPOGRAPHY HELPERS ─── */
.section-label {
  display: inline-block; background: var(--accent); color: #fff;
  font-size: 11px; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase; padding: 5px 14px; border-radius: 20px; margin-bottom: 14px;
}
.section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(26px, 3.6vw, 42px); font-weight: 900; line-height: 1.2; margin-bottom: 16px;
}
.section-sub { color: var(--text-muted); font-size: 15px; max-width: 580px; }
.center { text-align: center; }
.center .section-sub { margin: 0 auto; }

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 30px; border-radius: 50px;
  font-family: 'Poppins', sans-serif; font-weight: 600; font-size: 14px;
  cursor: pointer; border: none; transition: all var(--transition); white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dk); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(255,111,0,.35); }
.btn-outline { background: transparent; border: 2px solid #fff; color: #fff; }
.btn-outline:hover { background: #fff; color: var(--primary); }
.btn-dark   { background: var(--primary); color: #fff; }
.btn-dark:hover { background: var(--primary-lt); transform: translateY(-2px); }
.btn-accent-outline { background: transparent; border: 2px solid var(--accent); color: var(--accent); }
.btn-accent-outline:hover { background: var(--accent); color: #fff; }
.btn-sm { padding: 9px 22px; font-size: 13px; }

/* ─── PAGE HERO BANNER (inner pages) ─── */
.page-hero {
  background: linear-gradient(135deg, var(--primary) 0%, #283593 60%, #1565c0 100%);
  color: #fff; padding: 60px 0 70px; position: relative; overflow: hidden;
}
.page-hero::after {
  content: ''; position: absolute; bottom: -2px; left: 0; right: 0; height: 60px;
  background: var(--bg-white); clip-path: ellipse(55% 100% at 50% 100%);
}
.page-hero.alt-bg::after { background: var(--bg-light); }
.page-hero-inner { position: relative; z-index: 1; }
.page-hero h1 { font-family: 'Playfair Display', serif; font-size: clamp(28px,4vw,48px); font-weight:900; margin-bottom: 12px; }
.page-hero p  { font-size: 16px; opacity: .85; max-width: 560px; }
.breadcrumb   { display: flex; align-items: center; gap: 8px; font-size: 13px; opacity: .75; margin-bottom: 18px; }
.breadcrumb a:hover { opacity: 1; text-decoration: underline; }
.breadcrumb i { font-size: 10px; }

/* ─── TOPBAR ─── */
.topbar { background: var(--primary-dk); color: rgba(255,255,255,.8); font-size: 12.5px; padding: 8px 0; }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.topbar-links { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
.topbar-links a { color: rgba(255,255,255,.8); transition: color var(--transition); }
.topbar-links a:hover { color: var(--accent-lt); }
.topbar-links i { margin-right: 5px; color: var(--accent-lt); }
.social-links { display: flex; gap: 8px; }
.social-links a {
  width: 26px; height: 26px; background: rgba(255,255,255,.12); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; color: #fff; transition: background var(--transition);
}
.social-links a:hover { background: var(--accent); }

/* ─── NAVBAR ─── */
.navbar { background: #fff; box-shadow: 0 2px 16px rgba(0,0,0,.07); position: sticky; top: 0; z-index: 1000; }
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 24px; max-width: 1200px; margin: 0 auto;
}
.logo img { height: 56px; width: auto; }
.logo-text { font-size: 20px; font-weight: 800; color: var(--primary); display: none; }
.nav-menu { display: flex; gap: 2px; align-items: center; }
.nav-item { position: relative; }
.nav-item > a {
  display: block; padding: 9px 14px; border-radius: 7px;
  font-size: 14px; font-weight: 500; color: var(--text);
  transition: all var(--transition); white-space: nowrap;
}
.nav-item > a:hover,
.nav-item > a.active { background: var(--primary); color: #fff; }
.nav-cta > a { background: var(--accent) !important; color: #fff !important; border-radius: 50px !important; padding: 9px 22px !important; }
.nav-cta > a:hover { background: var(--accent-dk) !important; }

/* Dropdown */
.has-dropdown:hover .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown {
  position: absolute; top: calc(100% + 8px); left: 0;
  background: #fff; border-radius: var(--radius); padding: 8px 0;
  min-width: 220px; box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: all var(--transition); z-index: 100;
  border-top: 3px solid var(--accent);
}
.dropdown a {
  display: block; padding: 10px 20px; font-size: 13.5px;
  color: var(--text); transition: all var(--transition);
}
.dropdown a:hover { background: var(--bg-light); color: var(--accent); padding-left: 26px; }

/* Hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 3px; background: var(--primary); border-radius: 2px; transition: all .3s; }
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,6px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-6px); }

/* ─── FOOTER ─── */
.site-footer { background: #0a0f2e; color: rgba(255,255,255,.65); padding: 70px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 50px; }
.footer-brand p { font-size: 13.5px; margin: 16px 0 22px; line-height: 1.85; }
.footer-logo img { height: 48px; filter: brightness(0) invert(1); }
.footer-logo-text { color: #fff; font-size: 20px; font-weight: 800; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 36px; height: 36px; background: rgba(255,255,255,.1); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; color: #fff; font-size: 14px; transition: background var(--transition);
}
.footer-social a:hover { background: var(--accent); }
.footer-heading {
  font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 20px;
  padding-bottom: 10px; position: relative;
}
.footer-heading::after { content: ''; position: absolute; bottom: 0; left: 0; width: 34px; height: 2px; background: var(--accent); }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255,255,255,.6); font-size: 13.5px; transition: color var(--transition); display: flex; align-items: center; gap: 7px; }
.footer-links a i { font-size: 10px; color: var(--accent); }
.footer-links a:hover { color: var(--accent-lt); padding-left: 4px; }
.footer-contact-item { display: flex; gap: 12px; margin-bottom: 14px; font-size: 13.5px; align-items: flex-start; }
.footer-contact-item i { color: var(--accent-lt); margin-top: 3px; flex-shrink: 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 20px 0; }
.footer-bottom-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; font-size: 12.5px; }
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: rgba(255,255,255,.5); transition: color var(--transition); }
.footer-bottom-links a:hover { color: var(--accent-lt); }

/* ─── CARDS SHARED ─── */
.card {
  background: #fff; border-radius: var(--radius-lg); padding: 32px 28px;
  box-shadow: var(--shadow); border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }

/* ─── STATS STRIP ─── */
.stats-strip { background: var(--accent); padding: 38px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(6,1fr); gap: 10px; text-align: center; }
.stat-item { color: #fff; }
.stat-number { font-size: clamp(26px,3vw,42px); font-weight: 800; font-family: 'Playfair Display',serif; line-height: 1; }
.stat-label  { font-size: 12px; opacity: .85; margin-top: 5px; font-weight: 500; }

/* ─── BACK TO TOP + WHATSAPP ─── */
#back-to-top {
  position: fixed; bottom: 30px; right: 30px; width: 44px; height: 44px;
  background: var(--primary); color: #fff; border: none; border-radius: 50%;
  font-size: 16px; cursor: pointer; box-shadow: var(--shadow-lg);
  display: none; align-items: center; justify-content: center;
  transition: all var(--transition); z-index: 999;
}
#back-to-top:hover { background: var(--accent); transform: translateY(-3px); }
#back-to-top.visible { display: flex; }
.whatsapp-fab {
  position: fixed; bottom: 84px; right: 30px; width: 50px; height: 50px;
  background: #25d366; color: #fff; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; box-shadow: 0 4px 18px rgba(37,211,102,.5);
  z-index: 999; transition: transform var(--transition);
}
.whatsapp-fab:hover { transform: scale(1.1); }

/* ─── FORMS ─── */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; padding: 12px 16px;
  border: 1.5px solid var(--border); border-radius: 8px;
  font-family: 'Poppins',sans-serif; font-size: 14px; color: var(--text);
  background: #fff; transition: border-color var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { outline: none; border-color: var(--primary); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-success { background: #e8f5e9; color: #2e7d32; padding: 14px 18px; border-radius: 8px; font-size: 14px; margin-bottom: 20px; border-left: 4px solid var(--success); }
.form-error   { background: #fdecea; color: #c62828; padding: 14px 18px; border-radius: 8px; font-size: 14px; margin-bottom: 20px; border-left: 4px solid #e53935; }

/* ─── CHECKLIST ─── */
.checklist li { padding: 7px 0; display: flex; align-items: flex-start; gap: 10px; font-size: 14.5px; }
.checklist li i { color: var(--success); margin-top: 3px; flex-shrink: 0; font-size: 14px; }

/* ─── TAG BADGE ─── */
.tag { display: inline-block; padding: 3px 12px; border-radius: 20px; font-size: 11.5px; font-weight: 600; }
.tag-accent  { background: rgba(255,111,0,.12); color: var(--accent-dk); }
.tag-primary { background: rgba(26,35,126,.1);  color: var(--primary); }
.tag-green   { background: rgba(39,174,96,.12); color: #1a7a42; }

/* ─── RESPONSIVE ─── */
@media (max-width: 1100px) {
  .stats-grid { grid-template-columns: repeat(3,1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 55px 0; }
  .nav-menu {
    display: none; flex-direction: column; align-items: stretch;
    position: absolute; top: 100%; left: 0; right: 0;
    background: #fff; padding: 12px 16px 20px; box-shadow: 0 8px 24px rgba(0,0,0,.12); gap: 4px;
  }
  .nav-menu.open { display: flex; }
  .hamburger { display: flex; }
  .nav-item > a { border-radius: 8px; }
  .has-dropdown:hover .dropdown,
  .has-dropdown .dropdown { position: static; box-shadow: none; opacity: 1; visibility: visible; transform: none; border-top: none; border-left: 3px solid var(--accent); margin: 4px 0 4px 16px; padding: 4px 0; display: none; }
  .has-dropdown.dd-open .dropdown { display: block; }
  .stats-grid { grid-template-columns: repeat(2,1fr); gap: 20px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .topbar-inner { flex-direction: column; align-items: flex-start; gap: 6px; }
  .page-hero { padding: 45px 0 60px; }
}
@media (max-width: 480px) {
  .btn { padding: 11px 22px; font-size: 13px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}