:root {
  --primary: #1565c0;
  --primary-dark: #0d47a1;
  --primary-light: #e8f1fc;
  --accent: #2aa8ff;
  --bg: #ffffff;
  --card: #ffffff;
  --text: #1a2330;
  --muted: #64748b;
  --danger: #c0392b;
  --warn: #c9821a;
  --ok: #1e8449;
  --border: #e4e9f0;
  --radius: 14px;
}
/* ---- Role-based color identity ----
   الطبيب: أزرق (اللون الأساسي للمنصة) - ثقة وطابع طبي
   المريض: أخضر فيروزي - هدوء وطابع صحي
   الإدارة: كُحلي داكن - سلطة ورسمية
   الموظف: كهرماني - مميز عن الإدارة، يوحي بأنه دعم مساعد لا سلطة كاملة */
body[data-role="patient"] {
  --primary: #0d9488;
  --primary-dark: #0f766e;
  --primary-light: #e3f5f2;
  --accent: #14b8a6;
}
body[data-role="admin"] {
  --primary: #3730a3;
  --primary-dark: #27217a;
  --primary-light: #ebe9f8;
  --accent: #6366f1;
}
body[data-role="staff"] {
  --primary: #b45309;
  --primary-dark: #92400e;
  --primary-light: #fdf1e3;
  --accent: #d97706;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Almarai", "Segoe UI", "Tahoma", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
#app { max-width: 480px; margin: 0 auto; padding: 14px 14px 40px; min-height: 100vh; }
@media (min-width: 640px) { #app { max-width: 640px; } }
@media (min-width: 900px) { #app { max-width: 820px; } }

h1, h2, h3 { margin: 0 0 10px; font-weight: 700; }
h1 { font-size: 1.3rem; }
h2 { font-size: 1.1rem; }
h3 { font-size: 1rem; color: var(--primary-dark); }
h4 { font-size: 0.9rem; color: var(--primary-dark); margin: 0 0 6px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 12px;
  box-shadow: 0 1px 3px rgba(21, 101, 192, 0.04);
}
.muted { color: var(--muted); font-size: 0.85rem; }
.row { display: flex; gap: 8px; align-items: center; }
.row.between { justify-content: space-between; }
.wrap { flex-wrap: wrap; }
.col { display: flex; flex-direction: column; gap: 8px; }

input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.95rem;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
textarea { resize: vertical; min-height: 70px; }
label { font-size: 0.85rem; color: var(--muted); margin-bottom: 2px; display: block; }

button, .btn {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-family: inherit;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  transition: background .15s;
}
button:hover { background: var(--primary-dark); }
button.secondary { background: #fff; color: var(--primary); border: 1px solid var(--primary); }
button.secondary:hover { background: var(--primary-light); }
button.danger { background: var(--danger); }
button.ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button.block { width: 100%; }

.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 0.75rem; }
.badge.active, .badge.ok, .badge.accepted, .badge.answered, .badge.confirmed { background: #e3f6ea; color: var(--ok); }
.badge.pending, .badge.pending_review, .badge.open, .badge.pending_doctor_review, .badge.awaiting_doctor, .badge.awaiting_patient { background: #fdf0de; color: var(--warn); }
.badge.blocked, .badge.limited, .badge.declined { background: #fbe9e7; color: var(--danger); }
.badge.resolved, .badge.closed, .badge.completed { background: #eef1f5; color: var(--muted); }
.badge.specialty { background: var(--primary-light); color: var(--primary-dark); font-weight: 700; }

.specialty-group h3 { color: var(--primary-dark); border-bottom: 1px solid var(--border); padding-bottom: 4px; }

nav.tabs { display: flex; gap: 6px; overflow-x: auto; margin-bottom: 14px; padding-bottom: 4px; }
nav.tabs button {
  flex: none; background: #fff; color: var(--text); border: 1px solid var(--border);
  white-space: nowrap; display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 8px 14px; font-size: 0.8rem; min-width: 64px;
}
nav.tabs button .tab-icon { font-size: 1.1rem; }
nav.tabs button.active { background: var(--primary); color: #fff; border-color: var(--primary); }

header.topbar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 10px; padding: 10px 2px;
}
header.topbar .brand { font-weight: bold; color: var(--primary-dark); font-size: 1.15rem; }
header.topbar .brand::before { content: "🩺 "; }

.reg-chip {
  background: var(--primary-light); color: var(--primary-dark);
  border-radius: 10px; padding: 8px 12px; font-size: 0.82rem; margin-bottom: 12px;
}

.privacy-banner {
  background: #fff7e6; border: 1px solid #f0d9a8; color: #7a5a14;
  border-radius: 10px; padding: 10px 12px; font-size: 0.8rem; margin-bottom: 12px; line-height: 1.6;
}

.list-item { padding: 10px 0; border-bottom: 1px solid var(--border); }
.list-item:last-child { border-bottom: none; }

.empty { color: var(--muted); text-align: center; padding: 24px 10px; }

.msg-bubble { max-width: 80%; padding: 8px 12px; border-radius: 14px; margin-bottom: 6px; font-size: 0.9rem; }
.msg-bubble.mine { background: var(--primary); color: #fff; margin-inline-start: auto; }
.msg-bubble.mine.read { background: var(--ok); }
.msg-bubble.theirs { background: var(--primary-light); color: var(--text); margin-inline-end: auto; }
.msg-bubble a.link { color: inherit; text-decoration: underline; }
.msg-row-compact { padding: 6px 10px; cursor: pointer; }
.msg-row-compact:hover { background: var(--primary-light); }
.unread-dot { display:inline-block; width:8px; height:8px; border-radius:50%; background: var(--danger); margin-inline-start:4px; }
.tab-badge { display:inline-block; min-width:16px; padding:0 4px; height:16px; line-height:16px; border-radius:999px; background: var(--danger); color:#fff; font-size:.65rem; text-align:center; margin-inline-start:3px; vertical-align:top; }
.cal-dot-red { color: var(--danger); }
.cal-dot-green { color: var(--ok); }

.toast {
  position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%);
  background: #222; color: #fff; padding: 10px 18px; border-radius: 10px; font-size: 0.88rem;
  z-index: 50; max-width: 90%; text-align: center;
}
.toast.err { background: var(--danger); }

a.link { color: var(--primary); cursor: pointer; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px; text-align: center; }
.stat .num { font-size: 1.4rem; font-weight: bold; color: var(--primary-dark); }
.stat .label { font-size: 0.78rem; color: var(--muted); }

/* ---- Landing / hero ---- */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  border-radius: 20px;
  padding: 32px 22px;
  text-align: center;
  margin-bottom: 22px;
  box-shadow: 0 8px 24px rgba(13, 71, 161, 0.2);
}
.hero h1 { font-size: 2.1rem; margin: 10px 0 8px; letter-spacing: .5px; }
.hero-sub { color: rgba(255,255,255,0.9); font-size: 0.95rem; max-width: 420px; margin: 0 auto; line-height: 1.6; }
.hero-badge {
  display: inline-block; background: rgba(255,255,255,0.18); color: #fff;
  font-size: 0.75rem; padding: 4px 12px; border-radius: 999px; margin-bottom: 6px;
}
.hero button { background: #fff; color: var(--primary-dark); font-weight: bold; }
.hero button:hover { background: #f0f3f8; }
.hero button.secondary { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.65); }
.hero button.secondary:hover { background: rgba(255,255,255,0.12); }

.section-title { text-align: center; color: var(--primary-dark); margin: 6px 0 14px; font-size: 1.15rem; }

.services-grid { display: grid; grid-template-columns: 1fr; gap: 10px; }
@media (min-width: 640px) { .services-grid { grid-template-columns: 1fr 1fr; } }
.service-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; transition: transform .15s, box-shadow .15s;
}
.service-card:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(21,101,192,0.1); }
.service-icon { font-size: 1.6rem; margin-bottom: 6px; }
.service-card h3 { color: var(--primary-dark); font-size: 0.98rem; margin-bottom: 4px; }
.service-card p { margin: 0; font-size: 0.85rem; line-height: 1.5; }

.guide-card { background: var(--primary-light); border: none; margin-top: 18px; }

/* ---- Footer: disclaimer + usage guide, persistent ---- */
.app-footer {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.footer-disclaimer {
  font-size: 0.78rem;
  line-height: 1.7;
  color: #7a5a14;
  background: #fff8e9;
  border: 1px solid #f0dfae;
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 8px;
}

/* ---- Collapsible disclosure (تنبيهات / دليل الاستخدام) ----
   صغير ومطوي افتراضياً، يتسع عند الضغط لعرض كل التفاصيل. */
.disclosure { margin-bottom: 10px; }
.disclosure > summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  background: #fff8e9;
  border: 1px solid #f0dfae;
  color: #7a5a14;
  border-radius: 12px;
  padding: 9px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  user-select: none;
}
.disclosure > summary::-webkit-details-marker { display: none; }
.disclosure > summary::marker { content: ''; }
.disclosure-chevron { margin-inline-start: auto; transition: transform .18s; font-size: 0.75rem; }
.disclosure[open] .disclosure-chevron { transform: rotate(180deg); }
.disclosure[open] > summary { border-radius: 12px 12px 0 0; }
.disclosure-body {
  background: #fffdf7;
  border: 1px solid #f0dfae;
  border-top: none;
  border-radius: 0 0 12px 12px;
  padding: 12px 14px;
  font-size: 0.8rem;
  line-height: 1.85;
  color: #5c4310;
  max-height: 420px;
  overflow-y: auto;
}
.disclosure-body h4 { color: #8a6416; font-size: 0.85rem; margin: 10px 0 2px; }
.disclosure-body h4:first-child { margin-top: 0; }
.disclosure-body p { margin: 2px 0 8px; }
.disclosure-body .emergency-note {
  background: #fde8e6; border: 1px solid #f3b9b3; color: #8a241b;
  border-radius: 8px; padding: 8px 10px; font-weight: 600; margin-bottom: 10px;
}
/* نسخة بلون المنصة الأساسي لدليل الاستخدام (ليس تحذيراً) */
.disclosure.guide > summary { background: var(--primary-light); border-color: var(--primary-light); color: var(--primary-dark); }
.disclosure.guide .disclosure-body { background: #fff; border-color: var(--border); color: var(--text); }
.disclosure.guide .disclosure-body h4 { color: var(--primary-dark); }
.footer-meta { text-align: center; font-size: 0.75rem; }