/* =====================================================================
   BAWAMAI NEXUS — Alumni Portal Stylesheet
   Glassmorphism / Dark-Light dual theme, state-of-the-art HTML5 design
   ===================================================================== */

:root[data-theme="dark"] {
  --bg-base: #030712;
  --bg-surface: rgba(17, 24, 39, 0.75);
  --bg-card: rgba(31, 41, 55, 0.45);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(56, 189, 248, 0.35);
  --primary: #0284c7;
  --primary-glow: #38bdf8;
  --accent-gold: #f59e0b;
  --accent-gold-glow: rgba(245, 158, 11, 0.35);
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --input-bg: rgba(10, 15, 29, 0.7);
  --modal-bg: rgba(3, 7, 18, 0.85);
  --hero-grad-start: #ffffff;
  --success: #10b981;
  --danger: #ef4444;
}

:root[data-theme="light"] {
  --bg-base: #f0f4f8;
  --bg-surface: rgba(255, 255, 255, 0.85);
  --bg-card: rgba(255, 255, 255, 0.65);
  --border-glass: rgba(15, 23, 42, 0.08);
  --border-glow: rgba(2, 132, 199, 0.3);
  --primary: #0284c7;
  --primary-glow: #0284c7;
  --accent-gold: #d97706;
  --accent-gold-glow: rgba(217, 119, 6, 0.25);
  --text-main: #0f172a;
  --text-muted: #475569;
  --input-bg: rgba(241, 245, 249, 0.9);
  --modal-bg: rgba(15, 23, 42, 0.45);
  --hero-grad-start: #0f172a;
  --success: #059669;
  --danger: #dc2626;
}

* { margin: 0; padding: 0; box-sizing: border-box; transition: background-color .3s ease, border-color .3s ease, color .3s ease; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  background-color: var(--bg-base);
  color: var(--text-main);
  overflow-x: hidden;
  line-height: 1.6;
}

#neural-canvas { position: fixed; inset: 0; width: 100vw; height: 100vh; z-index: 0; pointer-events: none; }
.app-container { position: relative; z-index: 1; max-width: 1240px; margin: 0 auto; padding: 0 24px; }

.glass-panel {
  background: var(--bg-surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: 24px;
  box-shadow: 0 20px 50px rgba(0,0,0,.08);
}
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  transition: all .35s cubic-bezier(.16,1,.3,1);
}
.glass-card:hover { border-color: var(--border-glow); transform: translateY(-4px); box-shadow: 0 12px 30px rgba(2,132,199,.12); }

nav { position: sticky; top: 20px; z-index: 50; display: flex; align-items: center; justify-content: space-between; padding: 14px 28px; margin: 20px auto 40px; max-width: 1240px; }
.brand { display: flex; align-items: center; gap: 14px; text-decoration: none; color: var(--text-main); }
.brand-icon { width: 44px; height: 44px; border-radius: 12px; background: linear-gradient(135deg, var(--primary), var(--accent-gold)); display: flex; align-items: center; justify-content: center; font-size: 20px; color: #fff; box-shadow: 0 0 20px var(--accent-gold-glow); }
.brand-title { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1.15rem; letter-spacing: -.5px; }
.brand-title span { color: var(--primary-glow); }
.nav-actions { display: flex; gap: 12px; align-items: center; }

.theme-toggle { width: 42px; height: 42px; border-radius: 12px; background: var(--bg-card); border: 1px solid var(--border-glass); color: var(--text-main); display: flex; align-items: center; justify-content: center; cursor: pointer; font-size: 1.1rem; }
.theme-toggle:hover { border-color: var(--border-glow); transform: rotate(15deg); }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 22px; border-radius: 12px; font-weight: 600; font-size: .9rem; cursor: pointer; transition: all .3s cubic-bezier(.16,1,.3,1); text-decoration: none; border: 1px solid transparent; }
.btn-glow { background: linear-gradient(135deg, #0284c7, #2563eb); color: #fff !important; box-shadow: 0 0 25px rgba(2,132,199,.35); }
.btn-glow:hover { box-shadow: 0 0 35px rgba(56,189,248,.6); transform: scale(1.02); }
.btn-outline { background: rgba(255,255,255,.05); color: var(--text-main); border-color: var(--border-glass); }
.btn-outline:hover { background: rgba(255,255,255,.12); border-color: var(--primary-glow); }
.btn-wa { background: linear-gradient(135deg, #25D366, #128C7E); color: #fff !important; box-shadow: 0 0 20px rgba(37,211,102,.35); }
.btn-wa:hover { box-shadow: 0 0 30px rgba(37,211,102,.6); transform: scale(1.02); }
.btn-danger { background: rgba(239,68,68,.12); color: var(--danger); border-color: rgba(239,68,68,.3); }
.btn-sm { padding: 6px 14px; font-size: .8rem; }
.btn:disabled { opacity: .6; cursor: not-allowed; }

.hero { display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px; align-items: center; padding: 60px 48px; margin-bottom: 60px; position: relative; overflow: hidden; }
.badge-status { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; background: rgba(56,189,248,.12); border: 1px solid var(--border-glow); border-radius: 999px; font-size: .8rem; color: var(--primary-glow); margin-bottom: 20px; font-weight: 600; text-transform: uppercase; letter-spacing: .5px; }
.pulse-dot { width: 8px; height: 8px; background: var(--primary-glow); border-radius: 50%; box-shadow: 0 0 8px var(--primary-glow); animation: pulse 2s infinite; }
@keyframes pulse { 0%{opacity:1;transform:scale(1)} 50%{opacity:.4;transform:scale(1.4)} 100%{opacity:1;transform:scale(1)} }

.hero-title { font-family: 'Space Grotesk', sans-serif; font-size: 3.2rem; line-height: 1.1; font-weight: 700; margin-bottom: 20px; background: linear-gradient(135deg, var(--hero-grad-start) 40%, var(--primary-glow) 80%, var(--accent-gold) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-desc { color: var(--text-muted); font-size: 1.05rem; margin-bottom: 30px; max-width: 540px; }
.hero-visual { display: flex; justify-content: center; align-items: center; position: relative; }
.core-node { width: 240px; height: 240px; border-radius: 50%; background: radial-gradient(circle, rgba(2,132,199,.15) 0%, transparent 70%); border: 1px dashed var(--border-glow); display: flex; align-items: center; justify-content: center; position: relative; animation: rotateRing 20s linear infinite; }
@keyframes rotateRing { to { transform: rotate(360deg); } }
.node-hub { width: 110px; height: 110px; background: var(--bg-card); border: 2px solid var(--accent-gold); border-radius: 50%; display: flex; flex-direction: column; align-items: center; justify-content: center; box-shadow: 0 0 40px var(--accent-gold-glow); animation: counterRotate 20s linear infinite; }
@keyframes counterRotate { to { transform: rotate(-360deg); } }

.bento-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; margin-bottom: 70px; }
.bento-card { padding: 28px; position: relative; overflow: hidden; }
.bento-metric { font-family: 'Space Grotesk', sans-serif; font-size: 2.4rem; font-weight: 700; color: var(--text-main); margin: 10px 0 4px; }

.section-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 24px; flex-wrap: wrap; gap: 16px; }
.section-header h2 { font-family: 'Space Grotesk', sans-serif; font-size: 1.8rem; font-weight: 700; }
.search-filter-bar { display: flex; gap: 12px; background: var(--bg-card); padding: 6px; border-radius: 14px; border: 1px solid var(--border-glass); width: 100%; max-width: 480px; }
.search-filter-bar input { flex: 1; background: transparent; border: none; outline: none; color: var(--text-main); padding: 8px 14px; font-family: inherit; }
.search-filter-bar select { background: var(--input-bg); border: 1px solid var(--border-glass); color: var(--text-main); padding: 0 12px; border-radius: 8px; outline: none; }

.directory-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px,1fr)); gap: 20px; margin-bottom: 30px; }
.alumni-node { padding: 24px; display: flex; flex-direction: column; gap: 14px; }
.node-header { display: flex; align-items: center; gap: 14px; }
.avatar-token { width: 46px; height: 46px; border-radius: 12px; background: linear-gradient(135deg, rgba(2,132,199,.2), rgba(245,158,11,.2)); display: flex; align-items: center; justify-content: center; font-weight: 700; color: var(--primary-glow); border: 1px solid var(--border-glow); overflow: hidden; }
.avatar-token img { width: 100%; height: 100%; object-fit: cover; }
.tag-batch { align-self: flex-start; font-size: .75rem; padding: 2px 10px; border-radius: 6px; background: rgba(245,158,11,.12); color: var(--accent-gold); border: 1px solid rgba(245,158,11,.3); }
.node-actions { display: flex; gap: 8px; margin-top: 4px; }
.pagination { display: flex; justify-content: center; gap: 8px; margin: 20px 0 80px; }
.pagination button { width: 36px; height: 36px; border-radius: 8px; border: 1px solid var(--border-glass); background: var(--bg-card); color: var(--text-main); cursor: pointer; }
.pagination button.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.matrix-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; margin-bottom: 80px; }
.agenda-list { display: flex; flex-direction: column; gap: 14px; margin-bottom: 80px; }
.agenda-item { display: flex; align-items: center; gap: 18px; padding: 18px 22px; }
.agenda-date { background: var(--primary); color: #fff; padding: 10px 16px; border-radius: 12px; font-weight: 700; font-size: .85rem; text-align: center; min-width: 64px; }

.testimoni-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px,1fr)); gap: 20px; margin-bottom: 80px; }
.testimoni-card { padding: 26px; }
.testimoni-card .quote-icon { font-size: 1.4rem; color: var(--accent-gold); opacity: .6; margin-bottom: 10px; }

.form-wrapper { padding: 44px; max-width: 720px; margin: 0 auto 90px; }
.form-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; }
.input-field { display: flex; flex-direction: column; gap: 6px; }
.input-field.full { grid-column: span 2; }
.input-field label { font-size: .85rem; font-weight: 600; color: var(--text-muted); }
.input-field input, .input-field select, .input-field textarea { background: var(--input-bg); border: 1px solid var(--border-glass); padding: 12px 16px; border-radius: 10px; color: var(--text-main); font-family: inherit; outline: none; }
.input-field input:focus, .input-field select:focus, .input-field textarea:focus { border-color: var(--primary-glow); }
.form-msg { grid-column: span 2; padding: 12px 16px; border-radius: 10px; font-size: .85rem; display: none; }
.form-msg.show { display: block; }
.form-msg.ok { background: rgba(16,185,129,.12); color: var(--success); border: 1px solid rgba(16,185,129,.3); }
.form-msg.err { background: rgba(239,68,68,.12); color: var(--danger); border: 1px solid rgba(239,68,68,.3); }

.modal-backdrop { display: none; position: fixed; inset: 0; background: var(--modal-bg); backdrop-filter: blur(12px); z-index: 100; align-items: center; justify-content: center; padding: 20px; }
.modal-backdrop.active { display: flex; }
.modal-window { width: 100%; max-width: 440px; padding: 32px; position: relative; max-height: 90vh; overflow-y: auto; }
.btn-close { position: absolute; top: 20px; right: 20px; background: transparent; border: none; color: var(--text-muted); cursor: pointer; font-size: 1.2rem; }

/* Floating WhatsApp button */
.wa-float { position: fixed; bottom: 24px; right: 24px; width: 60px; height: 60px; border-radius: 50%; background: linear-gradient(135deg,#25D366,#128C7E); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 28px; box-shadow: 0 8px 24px rgba(37,211,102,.5); z-index: 90; text-decoration: none; animation: waBounce 2.5s ease-in-out infinite; }
@keyframes waBounce { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-6px)} }
.wa-float:hover { box-shadow: 0 10px 30px rgba(37,211,102,.7); }

footer { border-top: 1px solid var(--border-glass); padding: 60px 0 30px; color: var(--text-muted); font-size: .9rem; }
.footer-content { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; margin-bottom: 40px; }

/* Admin panel specifics */
.admin-shell { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.admin-sidebar { padding: 24px; border-right: 1px solid var(--border-glass); display: flex; flex-direction: column; gap: 6px; }
.admin-sidebar a { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-radius: 12px; color: var(--text-muted); text-decoration: none; font-weight: 600; font-size: .9rem; }
.admin-sidebar a:hover, .admin-sidebar a.active { background: var(--bg-card); color: var(--text-main); border: 1px solid var(--border-glow); }
.admin-main { padding: 30px 40px; }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border-glass); font-size: .88rem; }
.data-table th { color: var(--text-muted); font-weight: 600; text-transform: uppercase; font-size: .72rem; letter-spacing: .5px; }
.status-pill { padding: 3px 12px; border-radius: 20px; font-size: .72rem; font-weight: 700; text-transform: uppercase; }
.status-pill.pending { background: rgba(245,158,11,.15); color: var(--accent-gold); }
.status-pill.approved { background: rgba(16,185,129,.15); color: var(--success); }
.status-pill.rejected { background: rgba(239,68,68,.15); color: var(--danger); }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding: 40px 24px; text-align: center; }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .bento-grid { grid-template-columns: repeat(2,1fr); }
  .matrix-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .input-field.full, .form-msg { grid-column: span 1; }
  .admin-shell { grid-template-columns: 1fr; }
  .admin-sidebar { flex-direction: row; overflow-x: auto; border-right: none; border-bottom: 1px solid var(--border-glass); }
}
@media (max-width: 600px) {
  .hero-title { font-size: 2.2rem; }
  .bento-grid { grid-template-columns: 1fr; }
  nav { padding: 12px 16px; }
  .brand-title { display: none; }
}