/* =====================================================
   Advanced Membership System — Premium Glassmorphism UI
===================================================== */

* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #0071e3; /* Modern Tech Blue */
  --primary-dark: #005bb5;
  --bg-gradient: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);
  --surface: rgba(255, 255, 255, 0.65);
  --border: rgba(255, 255, 255, 0.4);
  --text: #1d1d1f;
  --muted: #86868b;
  --success: #34c759;
  --danger: #ff3b30;
  --warning: #f59e0b;
  --radius: 18px;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
  --blur: blur(20px);
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  color: var(--text);
  background: var(--bg-gradient);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--primary-dark); }

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* ---------- Header (Glass) ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 20px;
}

.logo { font-weight: 700; font-size: 20px; color: var(--text); letter-spacing: -0.5px; }

.nav { display: flex; gap: 24px; align-items: center; }
.nav a { color: var(--text); font-weight: 500; font-size: 15px; }
.nav a:hover { color: var(--primary); }

/* ---------- Main & Animations ---------- */
.main-area { 
  padding: 50px 20px 80px; 
  min-height: 75vh;
  animation: fadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeUp {
  0% { opacity: 0; transform: translateY(20px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* ---------- Footer ---------- */
.site-footer {
  padding: 30px 0; color: var(--muted); text-align: center; font-size: 14px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; padding: 12px 22px;
  border-radius: 99px; border: none; font-weight: 600; cursor: pointer;
  font-size: 15px; transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  text-align: center;
}

.btn-primary { 
  background: var(--primary); color: #fff; 
  box-shadow: 0 4px 14px rgba(0, 113, 227, 0.3);
}
.btn-primary:hover { 
  background: var(--primary-dark); transform: translateY(-2px); 
  box-shadow: 0 6px 20px rgba(0, 113, 227, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.8); color: var(--text);
  border: 1px solid rgba(0,0,0,0.05);
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.btn-secondary:hover { background: #fff; transform: translateY(-2px); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 8px 16px; font-size: 14px; }
.btn-block { width: 100%; }

/* ---------- Cards (Glassmorphism) ---------- */
.card {
  background: var(--surface);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.card h2, .card h3 { margin-bottom: 16px; letter-spacing: -0.3px; }

/* ---------- Hero ---------- */
.hero { text-align: center; padding: 80px 20px 50px; }
.hero h1 { font-size: 48px; margin-bottom: 16px; letter-spacing: -1px; font-weight: 800;}
.hero p  { color: var(--muted); font-size: 20px; max-width: 600px; margin: 0 auto 30px; line-height: 1.5; }

/* ---------- Plans grid ---------- */
.plans {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; margin-top: 40px;
}
.plan-card {
  background: var(--surface); backdrop-filter: var(--blur);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 36px 24px; text-align: center; box-shadow: var(--shadow);
  transition: all 0.3s ease;
}
.plan-card:hover { transform: translateY(-8px); border-color: var(--primary); box-shadow: 0 15px 40px rgba(0,0,0,0.08); }
.plan-card h3 { margin-bottom: 8px; font-size: 22px; font-weight: 700; }
.plan-price { font-size: 36px; font-weight: 800; color: var(--text); margin: 16px 0; }
.plan-price small { font-size: 16px; color: var(--muted); font-weight: 500; }

/* ---------- Forms ---------- */
.form-wrap { max-width: 480px; margin: 0 auto; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 8px; font-size: 14px; color: var(--text); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 14px 16px;
  border: 1px solid rgba(0,0,0,0.1); border-radius: 12px;
  font-size: 15px; background: rgba(255,255,255,0.9);
  font-family: inherit; transition: all 0.2s;
}
.form-group input:focus, .form-group select:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.15);
  background: #fff;
}

/* ---------- Flash ---------- */
.flash {
  padding: 14px 20px; border-radius: 12px; margin-bottom: 24px;
  font-size: 15px; font-weight: 500; border: 1px solid transparent;
}
.flash-success { background: rgba(52,199,89,0.1); color: #248a3d; border-color: rgba(52,199,89,0.2); }
.flash-error   { background: rgba(255,59,48,0.1); color: #c92a21; border-color: rgba(255,59,48,0.2); }

/* ---------- Tables ---------- */
.table {
  width: 100%; border-collapse: collapse; background: transparent;
}
.table th, .table td {
  padding: 16px; text-align: left;
  border-bottom: 1px solid rgba(0,0,0,0.05); font-size: 14px;
}
.table th { font-weight: 600; color: var(--muted); text-transform: uppercase; font-size: 12px; letter-spacing: 0.5px; }

/* ---------- Badges ---------- */
.badge { display: inline-block; padding: 4px 12px; border-radius: 99px; font-size: 12px; font-weight: 700; text-transform: uppercase;}
.badge-active    { background: rgba(52,199,89,0.15); color: #248a3d; }
.badge-expired   { background: rgba(255,59,48,0.15); color: #c92a21; }
.badge-cancelled { background: rgba(0,0,0,0.05); color: var(--text); }
.badge-pending   { background: rgba(245,158,11,0.15); color: #b45309; }

/* ---------- Utility ---------- */
.dash-grid { display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.muted { color: var(--muted); }
.text-center { text-align: center; }
.mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; }

@media (max-width: 600px) {
  .hero h1 { font-size: 36px; }
  .header-inner { flex-direction: column; gap: 16px; }
  .nav { gap: 16px; flex-wrap: wrap; justify-content: center;}
}