/* ================================================================
   TUNEDIK Alumni Management System — Custom Styles v2
   Palette: Deep teal primary · Amber accent · Clean white surfaces
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  /* ── Brand colours ────────────────────────────────────────── */
  --primary:      #0f4c75;   /* deep ocean blue                */
  --primary-lt:   #1b6ca8;   /* medium blue                    */
  --primary-dk:   #082a42;   /* darkest blue (footer top)      */
  --accent:       #f5a623;   /* warm amber                     */
  --accent-dk:    #d4891a;
  --accent-lt:    #fde8b8;   /* light amber tint               */

  /* ── Semantic ─────────────────────────────────────────────── */
  --success:      #16a34a;
  --success-lt:   #dcfce7;
  --danger:       #dc2626;
  --danger-lt:    #fee2e2;
  --warning:      #d97706;
  --warning-lt:   #fef3c7;
  --info:         #0891b2;
  --info-lt:      #cffafe;

  /* ── Neutrals ─────────────────────────────────────────────── */
  --white:        #ffffff;
  --gray-50:      #f8fafc;
  --gray-100:     #f1f5f9;
  --gray-200:     #e2e8f0;
  --gray-300:     #cbd5e1;
  --gray-500:     #64748b;
  --gray-700:     #334155;
  --gray-900:     #0f172a;

  /* ── Footer specific ─────────────────────────────────────── */
  --footer-bg:         #0f172a;   /* very dark slate            */
  --footer-border:     #1e293b;
  --footer-text:       #cbd5e1;   /* light slate — readable     */
  --footer-heading:    #f1f5f9;   /* near white                 */
  --footer-link:       #94a3b8;
  --footer-link-hover: #f5a623;   /* amber on hover             */
  --footer-bottom-bg:  #080f1a;

  /* ── Radius / Shadow ─────────────────────────────────────── */
  --radius-sm:    8px;
  --radius-md:    12px;
  --radius-lg:    16px;
  --shadow-sm:    0 1px 4px rgba(0,0,0,.08);
  --shadow-md:    0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:    0 8px 32px rgba(0,0,0,.14);
}

/* ── Base ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html, body {
  height: 100%;
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  font-size: 15px;
  color: var(--gray-900);
  background: var(--gray-100);
  -webkit-font-smoothing: antialiased;
}

body { display: flex; flex-direction: column; }
main { flex: 1; }

/* ── Navbar ────────────────────────────────────────────────── */
.bg-primary-custom {
  background: linear-gradient(135deg, var(--primary-dk) 0%, var(--primary) 60%, var(--primary-lt) 100%) !important;
  box-shadow: 0 2px 12px rgba(0,0,0,.20) !important;
}

.navbar-brand {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.navbar-dark .navbar-nav .nav-link {
  color: rgba(255,255,255,.88);
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: background .2s, color .2s;
  display: flex;
  align-items: center;
  flex-direction: row;
  gap: 5px;
}

.navbar-dark .navbar-nav .nav-link i {
  font-size: 1rem;
  line-height: 1;
  flex-shrink: 0;
}

.navbar-dark .navbar-nav .nav-link:hover {
  color: var(--accent);
  background: rgba(255,255,255,.08);
}

/* Mobile: full-width items with left-aligned icon+text */
@media (max-width: 991.98px) {
  .navbar-dark .navbar-nav .nav-link {
    padding: 10px 14px;
    border-radius: 0;
  }
  .navbar-dark .navbar-nav {
    padding: 8px 0;
  }
}

/* ── Hero ──────────────────────────────────────────────────── */
.hero-section {
  background:
    linear-gradient(135deg, rgba(8,42,66,.96) 0%, rgba(15,76,117,.92) 60%, rgba(27,108,168,.88) 100%),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  color: white;
  padding: 90px 0 70px;
  position: relative;
  overflow: hidden;
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 40px;
  background: var(--gray-100);
  clip-path: ellipse(55% 100% at 50% 100%);
}

/* ── Cards ─────────────────────────────────────────────────── */
.card {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s, transform .2s;
  background: var(--white);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.card-header {
  background: var(--white) !important;
  border-bottom: 1px solid var(--gray-200) !important;
  border-radius: var(--radius-md) var(--radius-md) 0 0 !important;
  padding: 16px 20px;
}

/* ── Stat Cards ────────────────────────────────────────────── */
.stat-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  border-left: 4px solid var(--primary);
  transition: transform .2s, box-shadow .2s;
}

.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stat-card.accent  { border-left-color: var(--accent); }
.stat-card.success { border-left-color: var(--success); }
.stat-card.danger  { border-left-color: var(--danger); }

.stat-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.stat-icon.blue   { background: #dbeafe; color: var(--primary); }
.stat-icon.orange { background: var(--accent-lt); color: var(--accent-dk); }
.stat-icon.green  { background: var(--success-lt); color: var(--success); }
.stat-icon.red    { background: var(--danger-lt); color: var(--danger); }

.stat-value { font-size: 1.75rem; font-weight: 800; line-height: 1.1; color: var(--gray-900); }
.stat-label { font-size: .72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--gray-500); }

/* ── Membership Badge ──────────────────────────────────────── */
.membership-badge {
  background: linear-gradient(135deg, var(--primary-dk) 0%, var(--primary) 60%, var(--primary-lt) 100%);
  color: white;
  border-radius: var(--radius-lg);
  padding: 28px 28px 32px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.membership-badge::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
}

.membership-badge::after {
  content: '';
  position: absolute;
  bottom: -30px;
  left: -30px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(255,255,255,.04);
}

.membership-id {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-family: 'Courier New', monospace;
  text-shadow: 0 1px 4px rgba(0,0,0,.3);
}

/* ── Status Badges ─────────────────────────────────────────── */
.status-badge {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 700;
  text-transform: capitalize;
  letter-spacing: .02em;
}

.badge-active   { background: var(--success-lt); color: var(--success); }
.badge-pending  { background: var(--warning-lt); color: var(--warning); }
.badge-expired  { background: var(--danger-lt);  color: var(--danger);  }
.badge-rejected { background: var(--danger-lt);  color: var(--danger);  }
.badge-success  { background: var(--success-lt); color: var(--success); }
.badge-failed   { background: var(--gray-200);   color: var(--gray-700);}

/* ── Countdown ─────────────────────────────────────────────── */
.countdown-wrapper {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 14px 0;
}

.countdown-box {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius-sm);
  width: 68px;
  padding: 10px 6px;
  text-align: center;
  backdrop-filter: blur(4px);
}

.countdown-num { font-size: 1.8rem; font-weight: 800; line-height: 1; }
.countdown-lbl { font-size: .6rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; opacity: .75; margin-top: 2px; }

/* ── Forms ─────────────────────────────────────────────────── */
.form-control, .form-select {
  border-color: var(--gray-300);
  border-radius: var(--radius-sm);
  font-size: .9rem;
  color: var(--gray-900);
}

.form-control:focus, .form-select:focus {
  border-color: var(--primary-lt);
  box-shadow: 0 0 0 3px rgba(27,108,168,.15);
}

.form-label { font-weight: 600; font-size: .875rem; color: var(--gray-700); margin-bottom: 5px; }
.form-text  { font-size: .78rem; color: var(--gray-500); }

/* ── Buttons ───────────────────────────────────────────────── */
.btn { font-weight: 600; border-radius: var(--radius-sm); transition: all .2s; }

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.btn-primary:hover {
  background: var(--primary-lt);
  border-color: var(--primary-lt);
  color: white;
  box-shadow: 0 4px 12px rgba(15,76,117,.35);
}

.btn-warning {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
  font-weight: 700;
}

.btn-warning:hover {
  background: var(--accent-dk);
  border-color: var(--accent-dk);
  color: white;
  box-shadow: 0 4px 12px rgba(212,137,26,.35);
}

/* ── Auth Pages ────────────────────────────────────────────── */
.auth-wrapper {
  min-height: calc(100vh - 56px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 16px;
  background: linear-gradient(145deg, var(--gray-100) 0%, #e8eef5 100%);
}

.auth-card {
  width: 100%;
  max-width: 480px;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 44px 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
}

.auth-card .auth-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  width: 100%;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.auth-card .auth-logo i {
  font-size: 3rem;
  color: var(--primary);
}

/* ── Admin Sidebar ─────────────────────────────────────────── */
.admin-wrapper {
  display: flex;
  min-height: calc(100vh - 56px);
}

.admin-sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--primary-dk);
  color: white;
  min-height: 100%;
  border-right: 1px solid rgba(255,255,255,.06);
}

/* Inner sticky+scroll container — keeps background full-height
   while nav scrolls independently within the viewport */
.admin-sidebar-inner {
  position: sticky;
  top: 56px;
  max-height: calc(100vh - 56px);
  overflow-y: auto;
  overflow-x: hidden;
  background: inherit;
}

.admin-sidebar .sidebar-header {
  padding: 12px 16px 10px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  font-weight: 700;
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: rgba(255,255,255,.45);
}

.admin-sidebar .nav-link {
  color: rgba(255,255,255,.75);
  padding: 8px 16px;
  font-weight: 500;
  font-size: .83rem;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: background .15s, color .15s, border-left-color .15s;
  border-left: 3px solid transparent;
}

.admin-sidebar .nav-link i { font-size: .95rem; width: 18px; text-align: center; }

.admin-sidebar .nav-link:hover {
  background: rgba(255,255,255,.07);
  color: white;
  border-left-color: rgba(245,166,35,.5);
}

.admin-sidebar .nav-link.active {
  background: rgba(245,166,35,.12);
  color: var(--accent);
  border-left-color: var(--accent);
  font-weight: 600;
}

.admin-main {
  flex: 1;
  padding: 28px 32px;
  background: var(--gray-100);
  overflow-x: auto;
}

/* ── Tables ────────────────────────────────────────────────── */
.table-custom thead th {
  background: var(--primary);
  color: white;
  font-weight: 600;
  font-size: .8rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  border: none;
  padding: 13px 16px;
}

.table-custom thead th:first-child { border-radius: var(--radius-sm) 0 0 0; }
.table-custom thead th:last-child  { border-radius: 0 var(--radius-sm) 0 0; }

.table-custom tbody tr {
  vertical-align: middle;
  border-bottom: 1px solid var(--gray-200);
  transition: background .12s;
}

.table-custom tbody tr:hover { background: var(--gray-50); }
.table-custom td { padding: 12px 16px; font-size: .875rem; color: var(--gray-700); }

/* ── Receipt Thumb ─────────────────────────────────────────── */
.receipt-thumb {
  max-width: 80px;
  max-height: 60px;
  border-radius: 6px;
  object-fit: cover;
  border: 2px solid var(--gray-200);
  cursor: zoom-in;
  transition: transform .2s;
}
.receipt-thumb:hover { transform: scale(1.05); }

/* ═══════════════════════════════════════════════════════════
   FOOTER  — high-contrast dark slate
   ═══════════════════════════════════════════════════════════ */
.footer-custom {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding-top: 56px !important;
  padding-bottom: 0 !important;
  border-top: 3px solid var(--accent);
}

/* Headings in footer */
.footer-custom h5,
.footer-custom h6 {
  color: var(--footer-heading);
  font-weight: 700;
  letter-spacing: .01em;
  margin-bottom: 16px;
}

/* Body text in footer */
.footer-custom p,
.footer-custom li,
.footer-custom small,
.footer-custom .text-muted {
  color: var(--footer-text) !important;
  font-size: .875rem;
  line-height: 1.7;
}

/* Footer links */
.footer-custom a.text-decoration-none,
.footer-custom ul a {
  color: var(--footer-link) !important;
  text-decoration: none !important;
  transition: color .2s, padding-left .2s;
  display: inline-block;
}

.footer-custom a.text-decoration-none:hover,
.footer-custom ul a:hover {
  color: var(--footer-link-hover) !important;
  padding-left: 4px;
}

/* Contact info items */
.footer-custom ul.list-unstyled li {
  color: var(--footer-text) !important;
  margin-bottom: 10px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.footer-custom ul.list-unstyled li i {
  color: var(--accent);
  margin-top: 3px;
  flex-shrink: 0;
}

/* Social icons */
.footer-custom .social-icons {
  display: flex;
  gap: 10px;
  margin-top: 6px;
}

.footer-custom .social-icons a {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.10);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--footer-text) !important;
  font-size: 1rem;
  transition: background .2s, color .2s, transform .2s;
  text-decoration: none !important;
  padding-left: 0 !important;
}

.footer-custom .social-icons a:hover {
  background: var(--accent);
  color: white !important;
  border-color: var(--accent);
  transform: translateY(-2px);
}

/* Divider */
.footer-custom hr {
  border-color: rgba(255,255,255,.08) !important;
  margin: 32px 0 0;
}

/* Bottom bar */
.footer-custom .footer-bottom {
  background: var(--footer-bottom-bg);
  padding: 14px 0;
  margin-top: 0;
}

.footer-custom .footer-bottom .text-muted,
.footer-custom .footer-bottom small {
  color: rgba(255,255,255,.4) !important;
  font-size: .78rem;
}

/* ── WhatsApp Widget ───────────────────────────────────────── */
.wa-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.65rem;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(37,211,102,.4);
  z-index: 9999;
  transition: transform .25s, box-shadow .25s;
}

.wa-float:hover {
  transform: scale(1.12);
  box-shadow: 0 6px 28px rgba(37,211,102,.55);
  color: white;
}

.wa-tooltip {
  position: absolute;
  right: 64px;
  white-space: nowrap;
  background: var(--gray-900);
  color: white;
  padding: 6px 14px;
  border-radius: 8px;
  font-size: .8rem;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
  border: 1px solid rgba(255,255,255,.1);
}

.wa-float:hover .wa-tooltip { opacity: 1; }

/* ── Settings page ─────────────────────────────────────────── */
.settings-section-title {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .09em;
  color: var(--gray-500);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--gray-200);
}

/* ── Payment method cards ──────────────────────────────────── */
.payment-method-card {
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 20px;
  cursor: pointer;
  transition: border-color .2s, box-shadow .2s, background .2s;
  background: var(--white);
}

.payment-method-card.selected,
.payment-method-card:hover {
  border-color: var(--primary-lt);
  background: #f0f7ff;
  box-shadow: 0 0 0 3px rgba(27,108,168,.12);
}

/* ── Alerts ────────────────────────────────────────────────── */
.alert {
  border-radius: var(--radius-md);
  border-left-width: 4px;
  font-size: .875rem;
}

/* ── Page section titles ───────────────────────────────────── */
.section-title {
  font-weight: 800;
  color: var(--gray-900);
  position: relative;
  padding-bottom: 12px;
  margin-bottom: 8px;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}

/* ── Feature cards (homepage) ──────────────────────────────── */
.feature-card {
  border: none;
  border-radius: var(--radius-lg);
  background: var(--white);
  padding: 32px 28px;
  text-align: center;
  transition: transform .25s, box-shadow .25s;
  box-shadow: var(--shadow-sm);
  border-bottom: 3px solid transparent;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-bottom-color: var(--accent);
}

.feature-card .icon-wrap {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  margin: 0 auto 20px;
}

/* ── Stats Counter Section ─────────────────────────────────── */
.stats-counter-section {
  background: linear-gradient(135deg, var(--gray-50) 0%, #e8f4fd 100%);
}

.stats-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  box-shadow: var(--shadow-sm);
  border-bottom: 3px solid transparent;
  transition: transform .25s, box-shadow .25s, border-bottom-color .25s;
}

.stats-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-bottom-color: var(--accent);
}

.stats-icon-wrap {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stats-number {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.02em;
  margin-bottom: 6px;
}

.stats-label {
  font-size: .82rem;
  font-weight: 600;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: .06em;
}

/* ── Dashboard Quick Nav ───────────────────────────────────── */
.dash-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  text-decoration: none;
  color: #444;
  transition: transform .15s, opacity .15s;
}
.dash-nav-item:hover { transform: translateY(-3px); opacity: .85; color: #000; }

.dash-nav-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 2px;
}

.dash-nav-item span {
  font-size: .7rem;
  font-weight: 600;
  line-height: 1.2;
  color: #555;
  text-align: center;
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 768px) {
  .admin-wrapper   { flex-direction: column; }
  .admin-sidebar   { width: 100%; min-height: auto; }
  .admin-main      { padding: 18px 16px; }
  .auth-card       { padding: 28px 20px; }
  .stat-card       { padding: 14px 16px; }
  .membership-id   { font-size: 1.15rem; }
  .footer-custom   { padding-top: 40px !important; }
}