/* ============================================================
   Exam Result Management System (ERMS) — Shared Styles
   ============================================================ */

:root {
  --erms-primary: #1e3a8a;
  --erms-primary-light: #2563eb;
  --erms-accent: #0ea5e9;
  --erms-success: #16a34a;
  --erms-danger: #dc2626;
  --erms-warning: #d97706;
  --erms-bg: #f4f7fb;
  --erms-card: #ffffff;
  --erms-border: #e2e8f0;
}

* { box-sizing: border-box; }

html, body {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background-color: var(--erms-bg);
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* Hero gradient */
.erms-hero-gradient {
  background: radial-gradient(1200px 600px at 10% -10%, rgba(59,130,246,0.35), transparent 60%),
              radial-gradient(1000px 500px at 100% 0%, rgba(14,165,233,0.30), transparent 60%),
              linear-gradient(135deg, #0b1b3a 0%, #10275e 45%, #0f3f7a 100%);
}

.erms-card {
  background: var(--erms-card);
  border: 1px solid var(--erms-border);
  border-radius: 1rem;
  box-shadow: 0 1px 2px rgba(15,23,42,0.04), 0 8px 24px -8px rgba(15,23,42,0.08);
}

.erms-card-hover { transition: transform .25s ease, box-shadow .25s ease; }
.erms-card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -12px rgba(15,23,42,0.18);
}

.erms-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-weight: 600; border-radius: .75rem; padding: .7rem 1.4rem;
  transition: all .2s ease; cursor: pointer; border: 1px solid transparent;
  font-size: .95rem;
}
.erms-btn:disabled { opacity: .55; cursor: not-allowed; }

.erms-btn-primary { background: var(--erms-primary-light); color: #fff; }
.erms-btn-primary:hover:not(:disabled) { background: var(--erms-primary); box-shadow: 0 8px 20px -6px rgba(37,99,235,.55); }

.erms-btn-accent { background: var(--erms-accent); color: #fff; }
.erms-btn-accent:hover:not(:disabled) { background: #0284c7; }

.erms-btn-outline { background: #fff; color: var(--erms-primary-light); border-color: #c7d7fb; }
.erms-btn-outline:hover:not(:disabled) { background: #eff4ff; }

.erms-btn-ghost { background: transparent; color: #475569; }
.erms-btn-ghost:hover:not(:disabled) { background: #eef2f7; }

.erms-btn-danger { background: #fee2e2; color: var(--erms-danger); }
.erms-btn-danger:hover:not(:disabled) { background: #fecaca; }

.erms-btn-success { background: var(--erms-success); color: #fff; }
.erms-btn-success:hover:not(:disabled) { background: #15803d; }

.erms-input {
  width: 100%; border: 1px solid var(--erms-border); border-radius: .65rem;
  padding: .68rem .9rem; font-size: .95rem; background: #fff;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.erms-input:focus {
  outline: none; border-color: var(--erms-primary-light);
  box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}
.erms-input.error { border-color: var(--erms-danger); box-shadow: 0 0 0 3px rgba(220,38,38,.1); }

.erms-label { font-size: .8rem; font-weight: 600; color: #334155; margin-bottom: .35rem; display: block; }

.erms-step-dot {
  width: 2rem; height: 2rem; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: .85rem; border: 2px solid #cbd5e1; color: #64748b; background: #fff;
}
.erms-step-dot.active { border-color: var(--erms-primary-light); background: var(--erms-primary-light); color: #fff; }
.erms-step-dot.done { border-color: var(--erms-success); background: var(--erms-success); color: #fff; }

/* Captcha */
.erms-captcha-canvas {
  border-radius: .65rem; border: 1px solid var(--erms-border); cursor: pointer;
  background: #f1f5f9; touch-action: none; user-select: none;
}

/* Sidebar */
.erms-sidebar-link {
  display: flex; align-items: center; gap: .75rem; padding: .65rem .9rem; border-radius: .65rem;
  color: #cbd5e1; font-weight: 500; font-size: .9rem; transition: background .15s ease, color .15s ease;
}
.erms-sidebar-link:hover { background: rgba(255,255,255,0.08); color: #fff; }
.erms-sidebar-link.active { background: var(--erms-accent); color: #fff; }

/* Toast */
#erms-toast-wrap { position: fixed; top: 1.25rem; right: 1.25rem; z-index: 9999; display: flex; flex-direction: column; gap: .6rem; }
.erms-toast {
  min-width: 260px; max-width: 340px; padding: .8rem 1rem; border-radius: .75rem; color: #fff;
  font-size: .875rem; font-weight: 500; box-shadow: 0 10px 25px -8px rgba(0,0,0,.35);
  display: flex; align-items: flex-start; gap: .6rem; animation: erms-slide-in .25s ease;
}
@keyframes erms-slide-in { from { opacity: 0; transform: translateX(30px); } to { opacity: 1; transform: translateX(0); } }
.erms-toast.success { background: #16a34a; }
.erms-toast.error { background: #dc2626; }
.erms-toast.info { background: #2563eb; }
.erms-toast.warning { background: #d97706; }

/* Modal */
.erms-modal-backdrop {
  position: fixed; inset: 0; background: rgba(15,23,42,.55); display: flex; align-items: center;
  justify-content: center; padding: 1rem; z-index: 999; backdrop-filter: blur(2px);
}
.erms-modal { background: #fff; border-radius: 1rem; max-width: 640px; width: 100%; max-height: 90vh; overflow-y: auto; }

/* Table */
.erms-table th { font-size: .72rem; text-transform: uppercase; letter-spacing: .04em; color: #64748b; font-weight: 700; }
.erms-table td, .erms-table th { padding: .7rem .9rem; border-bottom: 1px solid #eef2f7; }
.erms-table tr:hover td { background: #f8fafc; }

.erms-badge { font-size: .72rem; font-weight: 700; padding: .2rem .55rem; border-radius: .5rem; display: inline-flex; align-items: center; gap: .3rem; }
.erms-badge.active { background: #dcfce7; color: #15803d; }
.erms-badge.closed { background: #f1f5f9; color: #475569; }

.erms-spinner {
  width: 1.1rem; height: 1.1rem; border: 2.5px solid rgba(255,255,255,.4); border-top-color: #fff;
  border-radius: 50%; animation: erms-spin .7s linear infinite;
}
@keyframes erms-spin { to { transform: rotate(360deg); } }

.erms-skeleton {
  background: linear-gradient(90deg, #e2e8f0 25%, #f1f5f9 37%, #e2e8f0 63%);
  background-size: 400% 100%; animation: erms-shimmer 1.4s ease infinite; border-radius: .5rem;
}
@keyframes erms-shimmer { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }

/* Print (student result slip) */
@media print {
  .no-print { display: none !important; }
  body { background: #fff !important; }
  #resultPrintArea { box-shadow: none !important; border: 1px solid #333 !important; }
}

/* Password strength bar */
.erms-strength-bar { height: 6px; border-radius: 4px; background: #e2e8f0; overflow: hidden; }
.erms-strength-fill { height: 100%; width: 0%; transition: width .25s ease, background .25s ease; }