:root {
  --color-primary: #E1122B;      /* EMP red */
  --color-ink: #1A1A1A;          /* EMP black */
  --color-ink-soft: #3A3A3A;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F7F7F8;
  --color-border: #E5E5E7;
  --color-success: #1E7A3D;
  --color-warning: #B8860B;
  --color-danger: #C81E2C;
  --color-asu-navy: #123A5E;     /* Ain Shams crest navy, used sparingly */
  --color-asu-gold: #C9A227;

  --radius-sm: 6px;
  --radius-md: 10px;
  --shadow-card: 0 1px 3px rgba(26,26,26,0.08), 0 1px 2px rgba(26,26,26,0.06);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

[data-theme="dark"] {
  --color-ink: #F2F2F3;
  --color-ink-soft: #C9C9CC;
  --color-surface: #17181A;
  --color-surface-alt: #1F2023;
  --color-border: #2C2D30;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-surface-alt);
  color: var(--color-ink);
  font-size: 15px;
  line-height: 1.5;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-surface);
  border-bottom: 3px solid var(--color-primary);
  padding: 10px 24px;
}

.app-header .brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.app-header .brand img { height: 44px; }
.app-header .brand .divider { width: 1px; height: 32px; background: var(--color-border); }
.app-header .brand .title { font-weight: 700; font-size: 15px; color: var(--color-ink); }
.app-header .brand .subtitle { font-size: 12px; color: var(--color-ink-soft); }

.app-header .user-menu { display: flex; align-items: center; gap: 12px; font-size: 14px; }
.app-header .user-menu .role-badge {
  background: var(--color-primary);
  color: #fff;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.app-shell { display: flex; min-height: calc(100vh - 65px); }

.app-sidebar {
  width: 220px;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  padding: 16px 0;
}
.app-sidebar a {
  display: block;
  padding: 10px 20px;
  color: var(--color-ink-soft);
  font-size: 14px;
  border-left: 3px solid transparent;
}
.app-sidebar a:hover, .app-sidebar a.active {
  color: var(--color-ink);
  background: var(--color-surface-alt);
  border-left-color: var(--color-primary);
  text-decoration: none;
}

.app-main { flex: 1; padding: 24px 32px; }

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 20px;
  margin-bottom: 20px;
}

.card h2, .card h3 { margin-top: 0; }

.btn {
  display: inline-block;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: #c30f26; text-decoration: none; }
.btn-outline { background: transparent; border-color: var(--color-border); color: var(--color-ink); }
.btn-outline:hover { border-color: var(--color-ink); text-decoration: none; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-pending  { background: #FBEFD2; color: var(--color-warning); }
.badge-accepted { background: #DFF3E4; color: var(--color-success); }
.badge-rejected { background: #FBDEE0; color: var(--color-danger); }
.badge-progress { background: #E3EEF9; color: var(--color-asu-navy); }

table.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data-table th, table.data-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border);
}
table.data-table th { color: var(--color-ink-soft); font-weight: 600; font-size: 12.5px; text-transform: uppercase; letter-spacing: .03em; }

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-alt);
  padding: 20px;
}
.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 32px;
  text-align: center;
}
.auth-card .logos { display: flex; align-items: center; justify-content: center; gap: 16px; margin-bottom: 18px; }
.auth-card .logos img { height: 56px; }
.auth-card h1 { font-size: 18px; margin: 4px 0 2px; }
.auth-card p.subtitle { color: var(--color-ink-soft); font-size: 13px; margin-top: 0; margin-bottom: 22px; }

.form-group { margin-bottom: 16px; text-align: left; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--color-ink-soft); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  background: var(--color-surface);
  color: var(--color-ink);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.alert { padding: 10px 14px; border-radius: var(--radius-sm); font-size: 13.5px; margin-bottom: 16px; text-align: left; }
.alert-error   { background: #FBDEE0; color: var(--color-danger); }
.alert-success { background: #DFF3E4; color: var(--color-success); }

.role-tabs { display: flex; gap: 8px; margin-bottom: 20px; justify-content: center; flex-wrap: wrap; }
.role-tabs a {
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  font-size: 12.5px;
  color: var(--color-ink-soft);
}
.role-tabs a.active { background: var(--color-ink); border-color: var(--color-ink); color: #fff; }

.notif-bell { position: relative; }
.notif-bell summary { list-style: none; cursor: pointer; font-size: 18px; position: relative; padding: 4px 8px; user-select: none; }
.notif-bell summary::-webkit-details-marker { display: none; }
.notif-count {
  position: absolute; top: -2px; right: -2px;
  background: var(--color-primary); color: #fff;
  font-size: 10px; font-weight: 700; line-height: 1;
  padding: 3px 5px; border-radius: 999px;
}
.notif-dropdown {
  position: absolute; right: 0; top: 32px; width: 300px;
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md);
  box-shadow: var(--shadow-card); z-index: 50; max-height: 360px; overflow-y: auto;
}
.notif-item { padding: 10px 14px; border-bottom: 1px solid var(--color-border); font-size: 13px; }
.notif-time { font-size: 11px; color: var(--color-ink-soft); margin-top: 2px; }
.notif-empty { padding: 14px; font-size: 13px; color: var(--color-ink-soft); }
.notif-view-all { display: block; text-align: center; padding: 10px; font-size: 12.5px; }