/* ==========================================================
   Tehran Karate Federation - modern custom theme on Bootstrap 5
   ========================================================== */
:root {
  --tk-green: #0f8a3f;
  --tk-green-dark: #0a5c2a;
  --tk-green-light: #22c55e;
  --tk-red: #dc2626;
  --tk-red-dark: #a51c1c;
  --tk-gold: #f0b429;
  --tk-dark: #0b1220;
  --tk-dark-2: #121a2b;
  --tk-gray: #64748b;
  --tk-radius: 1.1rem;
  --tk-radius-sm: .7rem;
  --tk-shadow: 0 10px 30px -12px rgba(15, 23, 42, .18);
  --tk-shadow-lg: 0 20px 45px -15px rgba(15, 23, 42, .28);
}

* { scroll-behavior: smooth; }

body {
  font-family: 'Poppins', 'Segoe UI', Arial, sans-serif;
  background-color: #f6f8fa;
  color: #1f2937;
}

a { text-decoration: none; }

/* ---------- Top utility bar ---------- */
.top-bar {
  background: var(--tk-dark);
  color: #cbd5e1;
  font-size: .82rem;
  padding: .45rem 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.top-bar a { color: #cbd5e1; }
.top-bar a:hover { color: #7ee2a8; }
.top-bar .top-bar-item { display: inline-flex; align-items: center; gap: .35rem; }
.top-bar .social-mini {
  width: 26px; height: 26px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.08); color: #e5e7eb; font-size: .8rem;
  transition: all .2s ease;
}
.top-bar .social-mini:hover { background: var(--tk-green); color: #fff; transform: translateY(-2px); }

/* ---------- Navbar ---------- */
.main-navbar {
  background: rgba(11, 18, 32, .92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.06);
  padding-top: .65rem;
  padding-bottom: .65rem;
  transition: box-shadow .25s ease, padding .25s ease;
}
.main-navbar.is-scrolled {
  box-shadow: 0 8px 24px rgba(0,0,0,.25);
  padding-top: .4rem;
  padding-bottom: .4rem;
}
.main-navbar .brand-text small { color: #94a3b8; font-size: .68rem; letter-spacing: .04em; }
.main-navbar .navbar-brand strong { font-size: 1.15rem; }
.main-navbar .nav-link {
  font-weight: 500;
  font-size: .93rem;
  position: relative;
  margin: 0 .05rem;
  padding-top: .6rem !important;
  padding-bottom: .6rem !important;
  padding-inline: .55rem !important;
}
.main-navbar .navbar-brand strong { font-size: 1.05rem; }
.main-navbar .nav-link::after {
  content: "";
  position: absolute;
  left: .75rem; right: .75rem; bottom: .1rem;
  height: 2px;
  background: linear-gradient(90deg, var(--tk-green-light), var(--tk-gold));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .25s ease;
  border-radius: 2px;
}
.main-navbar .nav-link:hover::after,
.main-navbar .nav-link.active::after { transform: scaleX(1); }
.main-navbar .nav-link.active { color: #7ee2a8 !important; }
.main-navbar .dropdown-menu {
  border: none;
  border-radius: var(--tk-radius-sm);
  box-shadow: var(--tk-shadow-lg);
  padding: .5rem;
  margin-top: .5rem;
}
.main-navbar .dropdown-item { border-radius: .5rem; padding: .55rem .8rem; font-size: .92rem; }
.main-navbar .dropdown-item:hover { background: rgba(15,138,63,.08); color: var(--tk-green-dark); }

.btn-brand {
  background: linear-gradient(135deg, var(--tk-green-light), var(--tk-green));
  border: none;
  color: #fff;
  box-shadow: 0 8px 20px -8px rgba(15,138,63,.6);
  transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
}
.btn-brand:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 12px 26px -8px rgba(15,138,63,.7); filter: brightness(1.05); }
.btn-brand:active { transform: translateY(0); }

/* ---------- Hero ---------- */
.hero-section {
  position: relative;
  background:
    radial-gradient(1100px 480px at 85% -10%, rgba(34,197,94,.25), transparent 60%),
    radial-gradient(700px 400px at -5% 110%, rgba(220,38,38,.18), transparent 60%),
    linear-gradient(120deg, var(--tk-dark) 0%, var(--tk-dark-2) 55%, #0d2a1a 130%);
  color: #fff;
  padding: 5.5rem 0 4.5rem;
  overflow: hidden;
}
.hero-section::before {
  content: "";
  position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: .5;
  pointer-events: none;
}
.hero-section h1 { font-weight: 800; letter-spacing: -.02em; }
.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 50rem;
  padding: .4rem 1.1rem;
  font-size: .85rem;
  backdrop-filter: blur(6px);
}
.stat-box {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 1rem;
  padding: 1.2rem;
  text-align: center;
  transition: transform .2s ease, background .2s ease;
}
.stat-box:hover { transform: translateY(-4px); background: rgba(255,255,255,.08); }
.stat-box .num { font-size: 1.9rem; font-weight: 800; color: #7ee2a8; }
.hero-photo-frame {
  position: relative;
  border-radius: 1.5rem;
  padding: .5rem;
  background: linear-gradient(135deg, rgba(34,197,94,.5), rgba(240,180,41,.4));
}
.hero-photo-frame img {
  border-radius: 1.15rem;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 320px;
}

/* ---------- Cards ---------- */
.tk-card {
  border: none;
  border-radius: var(--tk-radius);
  overflow: hidden;
  box-shadow: var(--tk-shadow);
  transition: transform .25s ease, box-shadow .25s ease;
  height: 100%;
  background: #fff;
}
.tk-card:hover { transform: translateY(-6px); box-shadow: var(--tk-shadow-lg); }
.tk-card .tk-card-img-wrap { position: relative; overflow: hidden; height: 190px; }
.tk-card img, .tk-card .tk-card-img {
  height: 190px; width: 100%; object-fit: cover; object-position: center; background: #eef2f0;
  transition: transform .4s ease;
}
.tk-card:hover img { transform: scale(1.06); }
.tk-card img.img-fallback { object-fit: contain; padding: 1.2rem; background: #f1f5f4; }
.tk-card .card-body { padding: 1.15rem 1.3rem; }
.tk-card .badge-cat {
  background: linear-gradient(135deg, var(--tk-green-light), var(--tk-green));
  font-weight: 500;
}

.section-title {
  position: relative;
  font-weight: 800;
  letter-spacing: -.01em;
  margin-bottom: .25rem;
}
.section-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--tk-red), var(--tk-gold));
  border-radius: 2px;
  margin-top: .6rem;
}
.section-title.text-center::after { margin-inline: auto; }
.section-eyebrow {
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .75rem;
  font-weight: 700;
  color: var(--tk-green);
}

.icon-tile {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 1rem;
  background: linear-gradient(135deg, rgba(15,138,63,.12), rgba(240,180,41,.12));
  color: var(--tk-green);
  font-size: 1.5rem;
}

/* ---------- Footer ---------- */
.site-footer {
  position: relative;
  background: linear-gradient(180deg, var(--tk-dark) 0%, #060a12 100%);
  color: #cbd5e1;
  padding-top: 4rem;
}
.site-footer .footer-wave { display: block; width: 100%; height: 60px; margin-bottom: -1px; }
.site-footer h6 { font-weight: 700; color: #fff; letter-spacing: .02em; }
.footer-links li { margin-bottom: .6rem; }
.footer-links a { color: #9fb0c3; transition: color .15s ease, padding-inline-start .15s ease; }
.footer-links a:hover { color: #7ee2a8; padding-inline-start: .25rem; }
.footer-bottom { background: #05070c; color: #7c8aa0; }
.footer-bottom a { color: #a7b4c6; }
.footer-bottom a:hover { color: #7ee2a8; }

.footer-contact-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 1rem;
  padding: 1.1rem 1.2rem;
  height: 100%;
  transition: background .2s ease, transform .2s ease;
}
.footer-contact-card:hover { background: rgba(255,255,255,.07); transform: translateY(-3px); }
.footer-contact-card .icon-tile { background: rgba(34,197,94,.15); color: #7ee2a8; width: 46px; height: 46px; font-size: 1.2rem; }
.footer-contact-card .label { font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; color: #8593a8; }
.footer-contact-card .value { color: #fff; font-weight: 600; font-size: .95rem; }
.footer-contact-card a.value { color: #fff; }
.footer-contact-card a.value:hover { color: #7ee2a8; }

.footer-newsletter {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 1.2rem;
  padding: 2rem;
}
.footer-newsletter .form-control {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.14);
  color: #fff;
}
.footer-newsletter .form-control::placeholder { color: #94a3b8; }
.footer-newsletter .form-control:focus {
  background: rgba(255,255,255,.09);
  border-color: var(--tk-green-light);
  color: #fff;
  box-shadow: 0 0 0 .2rem rgba(34,197,94,.2);
}

.social-btn {
  width: 38px; height: 38px; border-radius: 50%;
  background: rgba(255,255,255,.07);
  color: #fff; display: flex; align-items: center; justify-content: center;
  transition: all .2s ease;
}
.social-btn:hover { background: linear-gradient(135deg, var(--tk-green-light), var(--tk-green)); color: #fff; transform: translateY(-3px); }

.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  inset-inline-end: 1.5rem;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--tk-green-light), var(--tk-green));
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--tk-shadow-lg);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: all .25s ease;
  z-index: 1040;
  border: none;
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { filter: brightness(1.1); color: #fff; }

/* ---------- Auth / forms ---------- */
.auth-card {
  max-width: 480px;
  margin: 3rem auto;
  border-radius: 1.4rem;
  box-shadow: var(--tk-shadow-lg);
  border: none;
}
.form-label { font-weight: 600; font-size: .92rem; }
.required::after { content: " *"; color: var(--tk-red); }
.form-control, .form-select {
  border-radius: .65rem;
  border-color: #e2e8f0;
  padding: .6rem .85rem;
}
.form-control:focus, .form-select:focus {
  border-color: var(--tk-green-light);
  box-shadow: 0 0 0 .2rem rgba(34,197,94,.15);
}

/* ---------- Dashboard ---------- */
.dash-sidebar {
  background: #fff;
  border-radius: var(--tk-radius);
  box-shadow: var(--tk-shadow);
  padding: 1rem;
}
.dash-sidebar .nav-link {
  color: #374151;
  border-radius: .6rem;
  padding: .55rem .8rem;
  font-weight: 500;
}
.dash-sidebar .nav-link.active, .dash-sidebar .nav-link:hover {
  background: rgba(15,138,63,.1);
  color: var(--tk-green);
}
.kpi-card {
  border-radius: var(--tk-radius);
  padding: 1.25rem;
  color: #fff;
  height: 100%;
  box-shadow: var(--tk-shadow);
}
.kpi-card.green { background: linear-gradient(135deg,#22c55e,#0a5c2a); }
.kpi-card.red { background: linear-gradient(135deg,#ef4444,#8f1414); }
.kpi-card.dark { background: linear-gradient(135deg,#1f2937,#0b1220); }
.kpi-card.amber { background: linear-gradient(135deg,#f0b429,#8f610c); }

/* ---------- IELTS program ---------- */
.ielts-band {
  border: 2px dashed var(--tk-green);
  border-radius: 1rem;
  padding: 1rem;
  text-align: center;
  background: rgba(15,138,63,.05);
}

/* ---------- misc ---------- */
.page-header {
  position: relative;
  background: linear-gradient(120deg, var(--tk-dark), var(--tk-dark-2));
  color: #fff;
  padding: 3.2rem 0;
  overflow: hidden;
}
.page-header::before {
  content: "";
  position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: .5;
}
.avatar-sm { width: 42px; height: 42px; border-radius: 50%; object-fit: cover; }
.table-responsive-card .card { border-radius: .8rem; }
.breadcrumb-bar { background:#fff; border-bottom:1px solid #eee; }

::selection { background: rgba(34,197,94,.25); }