/* ==========================================================================
   Webmail - base styles, theme variables, layout shell, auth pages, admin
   ========================================================================== */

:root {
  --wm-bg: #f5f6fa;
  --wm-surface: #ffffff;
  --wm-surface-alt: #f8f9fb;
  --wm-border: #e3e6ec;
  --wm-text: #202124;
  --wm-text-muted: #6b7280;
  --wm-primary: #2f5fdb;
  --wm-primary-hover: #2650bd;
  --wm-primary-soft: #eaf0ff;
  --wm-danger: #d93025;
  --wm-warning: #f0a30a;
  --wm-success: #1a8754;
  --wm-hover: #f0f2f8;
  --wm-selected: #e6edff;
  --wm-shadow: 0 2px 10px rgba(20, 24, 40, 0.06);
  --wm-radius: 10px;
  --wm-topbar-h: 58px;
  --wm-sidebar-w: 240px;
}

[data-theme="dark"] {
  --wm-bg: #16181d;
  --wm-surface: #1e2127;
  --wm-surface-alt: #23262d;
  --wm-border: #2e3138;
  --wm-text: #e7e9ee;
  --wm-text-muted: #9aa0ab;
  --wm-primary: #5c86ff;
  --wm-primary-hover: #7599ff;
  --wm-primary-soft: #202a45;
  --wm-hover: #262a32;
  --wm-selected: #223055;
  --wm-shadow: 0 2px 14px rgba(0, 0, 0, 0.4);
}

@media (prefers-color-scheme: dark) {
  :root[data-theme="auto"] {
    --wm-bg: #16181d;
    --wm-surface: #1e2127;
    --wm-surface-alt: #23262d;
    --wm-border: #2e3138;
    --wm-text: #e7e9ee;
    --wm-text-muted: #9aa0ab;
    --wm-primary: #5c86ff;
    --wm-primary-hover: #7599ff;
    --wm-primary-soft: #202a45;
    --wm-hover: #262a32;
    --wm-selected: #223055;
  }
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  background: var(--wm-bg);
  color: var(--wm-text);
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
}

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

.btn-icon {
  width: 38px; height: 38px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--wm-text-muted);
  font-size: 15px;
}
.btn-icon:hover { background: var(--wm-hover); color: var(--wm-text); }

.btn-primary {
  background: var(--wm-primary);
  border-color: var(--wm-primary);
}
.btn-primary:hover, .btn-primary:focus {
  background: var(--wm-primary-hover);
  border-color: var(--wm-primary-hover);
}

/* ---------------- App shell ---------------- */
#app-root { display: flex; flex-direction: column; height: 100vh; overflow: hidden; }

.topbar {
  height: var(--wm-topbar-h);
  display: flex; align-items: center; gap: 16px;
  padding: 0 16px;
  background: var(--wm-surface);
  border-bottom: 1px solid var(--wm-border);
  flex-shrink: 0;
  z-index: 40;
}
.topbar-left { display: flex; align-items: center; gap: 8px; }
.topbar-logo { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 18px; color: var(--wm-text); }
.topbar-logo i { color: var(--wm-primary); }
.topbar-search { flex: 1 1 auto; max-width: 640px; }
.topbar-right { display: flex; align-items: center; gap: 6px; margin-left: auto; }

.search-box { position: relative; display: flex; align-items: center; }
.search-box i.fa-magnifying-glass { position: absolute; left: 12px; color: var(--wm-text-muted); font-size: 14px; }
.search-box input {
  width: 100%; padding: 8px 34px; border-radius: 20px; border: 1px solid var(--wm-border);
  background: var(--wm-surface-alt); color: var(--wm-text);
}
.search-box input:focus { outline: none; border-color: var(--wm-primary); background: var(--wm-surface); }
.search-clear { position: absolute; right: 8px; background: none; border: none; color: var(--wm-text-muted); }

.notif-dot { position: absolute; top: 6px; right: 6px; width: 8px; height: 8px; border-radius: 50%; background: var(--wm-danger); }
.notif-panel { width: 300px; max-height: 360px; overflow-y: auto; }

.profile-btn { border: none; background: none; padding: 0; }
.avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--wm-primary); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 14px;
}

.app-body { flex: 1 1 auto; display: flex; min-height: 0; }

.sidebar {
  width: var(--wm-sidebar-w); flex-shrink: 0;
  background: var(--wm-surface);
  border-right: 1px solid var(--wm-border);
  display: flex; flex-direction: column;
  padding: 14px 10px;
}
.compose-btn {
  display: flex; align-items: center; gap: 10px;
  border-radius: 24px; padding: 10px 18px; font-weight: 600;
  box-shadow: var(--wm-shadow);
  margin-bottom: 14px;
}
.folder-nav { flex: 1 1 auto; overflow-y: auto; }
.folder-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 8px; cursor: pointer;
  color: var(--wm-text); font-size: 14.5px;
  margin-bottom: 2px;
}
.folder-item i { width: 18px; text-align: center; color: var(--wm-text-muted); }
.folder-item:hover { background: var(--wm-hover); }
.folder-item.active { background: var(--wm-selected); color: var(--wm-primary); font-weight: 600; }
.folder-item.active i { color: var(--wm-primary); }
.folder-item .folder-name { flex: 1 1 auto; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.folder-item .folder-count { font-size: 12px; color: var(--wm-text-muted); }
.folder-item.active .folder-count { color: var(--wm-primary); }
.folder-section-label { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--wm-text-muted); padding: 12px 12px 4px; }
.sidebar-footer { padding: 10px 4px 0; border-top: 1px solid var(--wm-border); margin-top: 8px; }

.sidebar-backdrop { display: none; }

/* ---------------- Auth pages ---------------- */
.auth-body { background: linear-gradient(135deg, #eef2fb, #f7f9fd); display: flex; align-items: center; justify-content: center; min-height: 100vh; }
[data-theme="dark"] .auth-body { background: linear-gradient(135deg, #14161b, #1b1e24); }
.auth-wrapper { width: 100%; max-width: 420px; padding: 20px; }
.auth-card { background: var(--wm-surface); border-radius: 16px; box-shadow: var(--wm-shadow); padding: 36px 32px; }
.auth-brand { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 700; color: var(--wm-text); margin-bottom: 4px; }
.auth-brand i { color: var(--wm-primary); }
.auth-subtitle { color: var(--wm-text-muted); margin-bottom: 24px; font-size: 14px; }
.auth-footer { text-align: center; font-size: 12.5px; color: var(--wm-text-muted); margin-top: 18px; margin-bottom: 0; }

/* ---------------- Admin ---------------- */
.admin-body { background: var(--wm-bg); color: var(--wm-text); }
.admin-shell { display: flex; min-height: 100vh; }
.admin-sidebar { width: 230px; flex-shrink: 0; background: var(--wm-surface); border-right: 1px solid var(--wm-border); display: flex; flex-direction: column; padding: 18px 12px; }
.admin-brand { font-weight: 700; font-size: 18px; padding: 6px 10px 18px; }
.admin-sidebar .nav-link { color: var(--wm-text); border-radius: 8px; padding: 9px 12px; font-size: 14.5px; }
.admin-sidebar .nav-link i { width: 20px; }
.admin-sidebar .nav-link.active, .admin-sidebar .nav-link:hover { background: var(--wm-selected); color: var(--wm-primary); }
.admin-sidebar-footer { margin-top: auto; padding-top: 12px; border-top: 1px solid var(--wm-border); display: flex; flex-direction: column; gap: 6px; font-size: 13.5px; }
.admin-main { flex: 1 1 auto; padding: 28px 32px; max-width: 1200px; }
.admin-page-header h1 { font-size: 24px; font-weight: 700; }
.admin-panel { background: var(--wm-surface); border: 1px solid var(--wm-border); border-radius: var(--wm-radius); padding: 20px; margin-bottom: 20px; }
.stat-card { display: flex; align-items: center; gap: 14px; background: var(--wm-surface); border: 1px solid var(--wm-border); border-radius: var(--wm-radius); padding: 18px; height: 100%; }
.stat-card i { font-size: 22px; color: var(--wm-primary); background: var(--wm-primary-soft); width: 46px; height: 46px; border-radius: 12px; display: flex; align-items: center; justify-content: center; }
.stat-card.stat-warn i { color: var(--wm-warning); background: #fdf3dd; }
.stat-card.stat-danger i { color: var(--wm-danger); background: #fbe3e1; }
.stat-value { font-size: 22px; font-weight: 700; line-height: 1.1; }
.stat-label { font-size: 12.5px; color: var(--wm-text-muted); }