/* ── TND Student Portal — Frontend Styles ── */
@import url('https://fonts.googleapis.com/css2?family=Inter+Tight:wght@400;500;600;700;800;900&display=swap');

:root {
  --tnd-primary:    #1a56db;
  --tnd-primary-dk: #1044b5;
  --tnd-accent:     #f97316;
  --tnd-green:      #16a34a;
  --tnd-purple:     #7c3aed;
  --tnd-text:       #111827;
  --tnd-mid:        #374151;
  --tnd-soft:       #6b7280;
  --tnd-border:     #e5e7eb;
  --tnd-bg:         #f9fafb;
  --tnd-white:      #ffffff;
  --tnd-radius:     16px;
  --tnd-shadow:     0 4px 24px rgba(0,0,0,.09);
}

/* ── Wrap ── */
.tnd-wrap { font-family:'Inter Tight',sans-serif; max-width:100%; }

/* ══════════════════════════════
   AUTH CARDS (Register / Login)
══════════════════════════════ */
.tnd-register-wrap,
.tnd-login-wrap {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  background: linear-gradient(135deg,#eff6ff 0%,#fff 60%,#fff7ed 100%);
}

.tnd-card {
  background: var(--tnd-white);
  border-radius: 24px;
  padding: 40px 36px;
  width: 100%;
  max-width: 440px;
  box-shadow: 0 20px 60px rgba(26,86,219,.12);
  border: 1.5px solid rgba(26,86,219,.08);
}

.tnd-card-header {
  text-align: center;
  margin-bottom: 32px;
}
.tnd-logo-icon { font-size: 48px; margin-bottom: 12px; }
.tnd-card-header h2 {
  font-size: 26px; font-weight: 900;
  color: var(--tnd-text); letter-spacing: -0.5px; margin: 0 0 6px;
}
.tnd-card-header p { color: var(--tnd-soft); font-size: 14px; font-weight: 500; }

/* ── Fields ── */
.tnd-field { margin-bottom: 18px; }
.tnd-field label {
  display: block; font-size: 13px; font-weight: 600;
  color: var(--tnd-mid); margin-bottom: 6px;
}
.req { color: #dc2626; }

.tnd-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.tnd-icon {
  position: absolute; left: 14px;
  font-size: 16px; pointer-events: none;
}
.tnd-input-wrap input {
  width: 100%; padding: 12px 44px 12px 44px;
  border: 2px solid var(--tnd-border); border-radius: 12px;
  font-size: 14px; font-family: 'Inter Tight',sans-serif;
  color: var(--tnd-text); background: var(--tnd-bg);
  transition: border-color .2s, box-shadow .2s;
  outline: none;
}
.tnd-input-wrap input:focus {
  border-color: var(--tnd-primary);
  box-shadow: 0 0 0 3px rgba(26,86,219,.12);
  background: #fff;
}
.tnd-eye {
  position: absolute; right: 12px;
  background: none; border: none; cursor: pointer;
  font-size: 16px; padding: 4px;
}

/* ── Terms ── */
.tnd-terms {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 20px; font-size: 13px; color: var(--tnd-mid);
}
.tnd-terms a { color: var(--tnd-primary); }

/* ── Remember / Forgot ── */
.tnd-remember {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 20px; font-size: 13px;
}
.tnd-forgot { color: var(--tnd-primary); text-decoration: none; font-weight: 600; }

/* ── Buttons ── */
.tnd-btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 13px 24px; border-radius: 12px;
  font-family: 'Inter Tight',sans-serif; font-weight: 700; font-size: 15px;
  text-decoration: none; cursor: pointer; border: none;
  transition: all .2s; letter-spacing: -0.2px;
}
.tnd-btn-primary {
  width: 100%; background: var(--tnd-primary); color: #fff !important;
  box-shadow: 0 6px 20px rgba(26,86,219,.32);
}
.tnd-btn-primary:hover { background: var(--tnd-primary-dk); transform: translateY(-1px); }
.tnd-btn-outline {
  width: 100%; background: transparent;
  color: var(--tnd-primary) !important;
  border: 2px solid var(--tnd-primary); margin-top: 16px;
}
.tnd-btn-outline:hover { background: var(--tnd-primary); color: #fff !important; }

.tnd-switch-link {
  text-align: center; margin-top: 20px;
  font-size: 13px; color: var(--tnd-soft);
}
.tnd-switch-link a { color: var(--tnd-primary); font-weight: 600; text-decoration: none; }

/* ── Alerts ── */
.tnd-alert {
  padding: 12px 16px; border-radius: 10px; margin-bottom: 16px;
  font-size: 13px; font-weight: 500;
}
.tnd-alert-error   { background: #fef2f2; color: #dc2626; border: 1.5px solid #fecaca; }
.tnd-alert-success { background: #f0fdf4; color: #16a34a; border: 1.5px solid #bbf7d0; }
.tnd-alert ul { margin: 4px 0 0 18px; }

/* ══════════════════════════════
   DASHBOARD
══════════════════════════════ */
.tnd-dashboard-wrap {
  font-family: 'Inter Tight',sans-serif;
  background: var(--tnd-bg); min-height: 100vh;
  padding-bottom: 40px;
}

/* Top Nav */
.tnd-dash-nav {
  background: var(--tnd-white); border-bottom: 2px solid var(--tnd-border);
  padding: 14px 24px; display: flex; align-items: center;
  justify-content: space-between; position: sticky; top: 0; z-index: 100;
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
.tnd-dash-brand {
  font-size: 16px; font-weight: 800; color: var(--tnd-primary); letter-spacing: -0.3px;
}
.tnd-dash-user { display: flex; align-items: center; gap: 12px; }
.tnd-dash-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--tnd-primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 14px; flex-shrink: 0;
}
.tnd-dash-username { font-weight: 600; font-size: 14px; color: var(--tnd-text); }
.tnd-btn-logout {
  background: #fef2f2; color: #dc2626; border: 1.5px solid #fecaca;
  border-radius: 8px; padding: 7px 14px; font-size: 13px;
  font-weight: 700; cursor: pointer; font-family: 'Inter Tight',sans-serif;
  transition: all .2s;
}
.tnd-btn-logout:hover { background: #dc2626; color: #fff; }

/* Welcome Banner */
.tnd-welcome-banner {
  margin: 24px 24px 0;
  background: linear-gradient(135deg,#1a56db,#3b82f6);
  border-radius: 20px; padding: 28px 32px;
  display: flex; align-items: center; justify-content: space-between;
  color: #fff;
}
.tnd-welcome-text h2 { font-size: 22px; font-weight: 800; margin: 0 0 6px; letter-spacing: -0.5px; }
.tnd-welcome-text p  { font-size: 14px; opacity: .8; margin: 0; }
.tnd-welcome-illustration { font-size: 52px; }

/* Stats Grid */
.tnd-stats-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 16px;
  padding: 20px 24px 0;
}
.tnd-stat-card {
  background: var(--tnd-white); border-radius: 16px;
  padding: 18px 20px; display: flex; align-items: center; gap: 14px;
  box-shadow: var(--tnd-shadow); border: 1.5px solid var(--tnd-border);
  transition: transform .2s;
}
.tnd-stat-card:hover { transform: translateY(-3px); }
.tnd-stat-icon { font-size: 28px; }
.tnd-stat-label { font-size: 11px; color: var(--tnd-soft); font-weight: 600; text-transform: uppercase; letter-spacing: .5px; }
.tnd-stat-val   { font-size: 13px; font-weight: 700; color: var(--tnd-text); margin-top: 2px; word-break: break-all; }
.tnd-stat-blue   { border-left: 4px solid var(--tnd-primary); }
.tnd-stat-green  { border-left: 4px solid var(--tnd-green);   }
.tnd-stat-orange { border-left: 4px solid var(--tnd-accent);  }
.tnd-stat-purple { border-left: 4px solid var(--tnd-purple);  }

/* Dashboard Card Grid */
.tnd-dash-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 20px;
  padding: 20px 24px;
}
.tnd-full-width { grid-column: 1 / -1; }

.tnd-dash-card {
  background: var(--tnd-white); border-radius: 20px;
  box-shadow: var(--tnd-shadow); border: 1.5px solid var(--tnd-border);
  overflow: hidden;
}
.tnd-dash-card-header {
  padding: 18px 22px; border-bottom: 1.5px solid var(--tnd-border);
  display: flex; align-items: center; justify-content: space-between;
}
.tnd-dash-card-header h3 { font-size: 15px; font-weight: 800; color: var(--tnd-text); margin: 0; }
.tnd-link-btn {
  font-size: 12px; color: var(--tnd-primary); text-decoration: none;
  font-weight: 600; border: 1.5px solid var(--tnd-primary);
  border-radius: 8px; padding: 4px 12px; transition: all .2s;
}
.tnd-link-btn:hover { background: var(--tnd-primary); color: #fff; }
.tnd-dash-card-body { padding: 22px; }

/* Course List */
.tnd-course-item {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 0; border-bottom: 1px solid var(--tnd-border);
}
.tnd-course-item:last-child { border-bottom: none; }
.tnd-course-thumb img, .tnd-thumb-placeholder {
  width: 56px; height: 56px; border-radius: 10px;
  object-fit: cover; flex-shrink: 0;
}
.tnd-thumb-placeholder {
  background: var(--tnd-bg); display: flex; align-items: center;
  justify-content: center; font-size: 24px; border: 1.5px solid var(--tnd-border);
}
.tnd-course-info { flex: 1; min-width: 0; }
.tnd-course-title { font-size: 14px; font-weight: 700; color: var(--tnd-text); margin-bottom: 6px; }
.tnd-progress-bar {
  height: 6px; background: var(--tnd-border); border-radius: 100px; overflow: hidden;
}
.tnd-progress-fill { height: 100%; background: var(--tnd-green); border-radius: 100px; transition: width .5s; }
.tnd-progress-label { font-size: 11px; color: var(--tnd-soft); margin-top: 4px; }
.tnd-course-btn {
  font-size: 12px; color: var(--tnd-primary); text-decoration: none;
  font-weight: 700; white-space: nowrap;
}

/* Empty State */
.tnd-empty-state {
  text-align: center; padding: 32px 16px;
}
.tnd-empty-icon { font-size: 48px; margin-bottom: 12px; }
.tnd-empty-state p { color: var(--tnd-soft); font-size: 14px; margin-bottom: 16px; }

/* Profile */
.tnd-profile-avatar-big {
  width: 80px; height: 80px; border-radius: 50%;
  background: linear-gradient(135deg,#1a56db,#7c3aed);
  color: #fff; font-size: 28px; font-weight: 900;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px; letter-spacing: -1px;
}
.tnd-profile-rows { display: flex; flex-direction: column; gap: 12px; }
.tnd-profile-row {
  display: flex; justify-content: space-between; align-items: center;
  padding-bottom: 12px; border-bottom: 1px solid var(--tnd-border);
  font-size: 13px;
}
.tnd-profile-row:last-child { border-bottom: none; }
.tnd-profile-label { color: var(--tnd-soft); font-weight: 600; }
.tnd-profile-val   { color: var(--tnd-text); font-weight: 700; text-align: right; max-width: 55%; word-break: break-all; }

/* Badges */
.tnd-badge {
  display: inline-block; border-radius: 100px; padding: 3px 10px;
  font-size: 11px; font-weight: 700;
}
.tnd-badge-green       { background: #f0fdf4; color: #16a34a; border: 1px solid #bbf7d0; }
.tnd-badge-completed   { background: #f0fdf4; color: #16a34a; }
.tnd-badge-processing  { background: #eff6ff; color: #1a56db; }
.tnd-badge-pending     { background: #fff7ed; color: #f97316; }
.tnd-badge-cancelled   { background: #fef2f2; color: #dc2626; }

/* Orders Table */
.tnd-table-wrap { overflow-x: auto; }
.tnd-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.tnd-table th {
  background: var(--tnd-bg); padding: 10px 14px;
  font-weight: 700; text-align: left; color: var(--tnd-mid);
  border-bottom: 2px solid var(--tnd-border);
}
.tnd-table td {
  padding: 12px 14px; border-bottom: 1px solid var(--tnd-border);
  color: var(--tnd-text);
}
.tnd-table tr:last-child td { border-bottom: none; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .tnd-stats-grid  { grid-template-columns: 1fr 1fr; }
  .tnd-dash-grid   { grid-template-columns: 1fr; }
  .tnd-welcome-illustration { display: none; }
}
@media (max-width: 600px) {
  .tnd-card        { padding: 28px 20px; }
  .tnd-stats-grid  { grid-template-columns: 1fr 1fr; gap: 10px; padding: 14px 14px 0; }
  .tnd-stat-card   { padding: 14px 12px; gap: 10px; }
  .tnd-stat-icon   { font-size: 22px; }
  .tnd-dash-grid   { padding: 14px; gap: 14px; }
  .tnd-welcome-banner { padding: 20px; margin: 14px 14px 0; }
  .tnd-welcome-text h2 { font-size: 18px; }
  .tnd-dash-nav    { padding: 12px 14px; }
  .tnd-dash-brand  { font-size: 13px; }
  .tnd-dash-username { display: none; }
  .tnd-profile-row { flex-direction: column; align-items: flex-start; gap: 2px; }
  .tnd-profile-val { text-align: left; max-width: 100%; }
}
@media (max-width: 380px) {
  .tnd-stats-grid { grid-template-columns: 1fr; }
  .tnd-card       { border-radius: 16px; }
}