/* ═══════════════════════════════════════════════════════════════════════════
   MailFlow — main.css  |  Full redesign — elegant & stylish
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─── Google Fonts import ────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap');

/* ─── Design tokens — Light ──────────────────────────────────────────────── */
:root {
  /* Backgrounds */
  --bg:              #f3f1fa;
  --bg-card:         #ffffff;
  --bg-hover:        #edeaf6;
  --bg-sidebar:      #0e0b1a;
  --bg-sidebar-item: rgba(139,92,246,.13);

  /* Text */
  --text:            #1a1428;
  --text-muted:      #7c6f94;
  --text-sidebar:    #9588b4;
  --text-sidebar-h:  #cfc4f0;

  /* Borders */
  --border:          #e3dff2;

  /* Brand */
  --primary:         #7c3aed;
  --primary-h:       #6d28d9;
  --primary-r:       124;
  --primary-g:       58;
  --primary-b:       237;
  --primary-light:   #f2eeff;
  --primary-mid:     #a78bfa;

  /* Status */
  --success:         #059669;
  --success-bg:      #edfdf6;
  --danger:          #dc2626;
  --danger-bg:       #fef2f2;
  --warning:         #d97706;
  --warning-bg:      #fffbeb;
  --info:            #0891b2;
  --info-bg:         #ecfeff;

  /* Elevation */
  --shadow-xs:  0 1px 2px rgba(15,10,40,.05);
  --shadow-sm:  0 2px 6px rgba(15,10,40,.06), 0 1px 2px rgba(15,10,40,.04);
  --shadow:     0 4px 14px rgba(15,10,40,.07), 0 1px 3px rgba(15,10,40,.05);
  --shadow-md:  0 8px 24px rgba(15,10,40,.09), 0 2px 6px rgba(15,10,40,.05);
  --shadow-lg:  0 16px 40px rgba(15,10,40,.11), 0 4px 10px rgba(15,10,40,.06);
  --shadow-xl:  0 28px 60px rgba(15,10,40,.14), 0 8px 18px rgba(15,10,40,.08);
  --glow:       0 0 0 3px rgba(124,58,237,.18);

  /* Layout */
  --sidebar-w:  252px;
  --topbar-h:   64px;
  --radius:     14px;
  --radius-sm:  9px;
  --radius-xs:  6px;
  --radius-pill:999px;

  /* Type */
  --font:         'DM Sans', system-ui, sans-serif;
  --font-heading: 'Syne', system-ui, sans-serif;

  /* Motion */
  --ease:       cubic-bezier(.22,1,.36,1);
  --t:          .18s;
}

/* ─── Design tokens — Dark ───────────────────────────────────────────────── */
[data-theme="dark"] {
  --bg:              #09070f;
  --bg-card:         #100d1e;
  --bg-hover:        #1a1630;
  --bg-sidebar:      #070510;
  --bg-sidebar-item: rgba(139,92,246,.16);

  --text:            #ece7f8;
  --text-muted:      #8878a8;
  --text-sidebar:    #6b5f8a;
  --text-sidebar-h:  #c4b3ee;

  --border:          #1f1b32;

  --primary-light:   #1c1540;
  --primary-mid:     #7c3aed;

  --success-bg:      #021f14;
  --danger-bg:       #1f0707;
  --warning-bg:      #1f1200;
  --info-bg:         #021b20;

  --shadow-xs:  0 1px 2px rgba(0,0,0,.4);
  --shadow-sm:  0 2px 6px rgba(0,0,0,.45), 0 1px 2px rgba(0,0,0,.35);
  --shadow:     0 4px 14px rgba(0,0,0,.5), 0 1px 3px rgba(0,0,0,.4);
  --shadow-md:  0 8px 24px rgba(0,0,0,.55), 0 2px 6px rgba(0,0,0,.4);
  --shadow-lg:  0 16px 40px rgba(0,0,0,.6), 0 4px 10px rgba(0,0,0,.45);
  --shadow-xl:  0 28px 60px rgba(0,0,0,.7), 0 8px 18px rgba(0,0,0,.5);
}

/* ─── Reset & Base ───────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
button { cursor: pointer; font-family: var(--font); border: none; background: none; }
img { max-width: 100%; display: block; }
input, textarea, select {
  font-family: var(--font);
  font-size: .9rem;
  color: var(--text);
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .55rem .85rem;
  outline: none;
  width: 100%;
  transition: border-color var(--t) var(--ease), box-shadow var(--t) var(--ease), background var(--t);
}
input:focus, textarea:focus, select:focus {
  border-color: var(--primary);
  box-shadow: var(--glow);
  background: var(--bg-card);
}
input::placeholder, textarea::placeholder { color: var(--text-muted); opacity: .7; }
textarea { resize: vertical; min-height: 100px; line-height: 1.6; }
select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%237c6f94' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right .75rem center; padding-right: 2.2rem; }
.hidden { display: none !important; }

/* ─── Login page ─────────────────────────────────────────────────────────── */
.page { min-height: 100vh; }

.login-bg {
  position: fixed; inset: 0;
  background: radial-gradient(ellipse at 20% 50%, #1a0b35 0%, #09070f 45%, #0f1a35 100%);
  z-index: 0; overflow: hidden;
}
.login-orb {
  position: absolute; border-radius: 50%;
  filter: blur(90px); pointer-events: none;
  animation: orb-drift 10s ease-in-out infinite alternate;
}
.orb-1 { width: 700px; height: 700px; top: -200px; left: -150px; background: radial-gradient(circle, rgba(124,58,237,.5), transparent 70%); animation-delay: 0s; }
.orb-2 { width: 500px; height: 500px; bottom: -100px; right: -80px;  background: radial-gradient(circle, rgba(99,102,241,.45), transparent 70%); animation-delay: -4s; }
.orb-3 { width: 350px; height: 350px; top: 35%; left: 45%;           background: radial-gradient(circle, rgba(16,185,129,.3), transparent 70%); animation-delay: -7s; }
@keyframes orb-drift {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(35px, 25px) scale(1.1); }
}

.login-container {
  position: relative; z-index: 1;
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 2rem;
}

.login-card {
  background: rgba(255,255,255,.055);
  backdrop-filter: blur(28px) saturate(1.4);
  -webkit-backdrop-filter: blur(28px) saturate(1.4);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 24px;
  padding: 2.75rem 2.25rem;
  width: 100%; max-width: 420px;
  text-align: center;
  box-shadow: 0 32px 80px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.12);
  animation: card-in .5s var(--ease) both;
}
@keyframes card-in { from { opacity: 0; transform: translateY(20px) scale(.97); } to { opacity: 1; transform: none; } }

.login-logo {
  display: inline-flex; align-items: center; gap: .65rem;
  margin-bottom: 2rem;
  font-family: var(--font-heading); font-size: 1.6rem; font-weight: 700; color: #fff;
}
.login-logo .logo-icon {
  width: 46px; height: 46px; border-radius: 13px;
  background: linear-gradient(135deg, #7c3aed, #4f46e5);
  display: flex; align-items: center; justify-content: center; color: #fff;
  box-shadow: 0 8px 20px rgba(124,58,237,.5);
}
.login-card h1 {
  font-family: var(--font-heading); font-size: 1.9rem; font-weight: 800;
  color: #fff; letter-spacing: -.02em; margin-bottom: .4rem;
}
.login-sub { color: rgba(255,255,255,.5); font-size: .9rem; margin-bottom: 2rem; }

.btn-google {
  display: flex; align-items: center; justify-content: center; gap: .75rem;
  width: 100%; padding: .9rem 1.5rem;
  background: #fff; color: #1a1428;
  border-radius: var(--radius-sm); border: none;
  font-size: .95rem; font-weight: 600; font-family: var(--font);
  cursor: pointer; text-decoration: none;
  box-shadow: 0 4px 16px rgba(0,0,0,.25);
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
}
.btn-google:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.3); text-decoration: none; color: #1a1428; }
.btn-google:active { transform: translateY(0); }

.login-privacy { color: rgba(255,255,255,.3); font-size: .73rem; margin-top: 1.75rem; line-height: 1.65; }

.alert { padding: .75rem 1rem; border-radius: var(--radius-sm); font-size: .875rem; margin-bottom: 1rem; text-align: left; }
.alert-error { background: rgba(220,38,38,.15); color: #fca5a5; border: 1px solid rgba(220,38,38,.3); }

/* ─── App layout ─────────────────────────────────────────────────────────── */
#main-layout { display: flex; min-height: 100vh; }

/* ─── Sidebar ────────────────────────────────────────────────────────────── */
#sidebar {
  width: var(--sidebar-w);
  background: var(--bg-sidebar);
  position: fixed; top: 0; left: 0; bottom: 0;
  display: flex; flex-direction: column;
  transition: width .22s var(--ease);
  z-index: 100; overflow: hidden;
  border-right: 1px solid rgba(255,255,255,.04);
}
#sidebar.collapsed { width: 62px; }

.sidebar-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 1rem; min-height: var(--topbar-h);
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.sidebar-logo {
  display: flex; align-items: center; gap: .65rem;
  font-family: var(--font-heading); font-size: 1.15rem; font-weight: 700;
  color: #fff; white-space: nowrap; overflow: hidden;
}
.sidebar-logo .logo-icon {
  width: 34px; height: 34px; border-radius: 10px; flex-shrink: 0;
  background: linear-gradient(135deg, #7c3aed, #4f46e5);
  display: flex; align-items: center; justify-content: center; color: #fff;
  box-shadow: 0 4px 12px rgba(124,58,237,.4);
}
.sidebar-toggle {
  color: rgba(255,255,255,.25); padding: .35rem; border-radius: var(--radius-xs);
  flex-shrink: 0; transition: color var(--t), background var(--t);
  display: flex; align-items: center; justify-content: center;
}
.sidebar-toggle:hover { color: rgba(255,255,255,.7); background: rgba(255,255,255,.07); }

.sidebar-nav {
  flex: 1; padding: .85rem .65rem;
  overflow-y: auto; overflow-x: hidden;
  display: flex; flex-direction: column; gap: .2rem;
  scrollbar-width: none;
}
.sidebar-nav::-webkit-scrollbar { display: none; }

.nav-item {
  display: flex; align-items: center; gap: .75rem;
  padding: .6rem .75rem; border-radius: var(--radius-sm);
  color: var(--text-sidebar); font-size: .875rem; font-weight: 500;
  cursor: pointer; white-space: nowrap; overflow: hidden;
  user-select: none; position: relative;
  transition: color var(--t) var(--ease), background var(--t) var(--ease);
  border: 1px solid transparent;
}
.nav-item svg { flex-shrink: 0; transition: opacity var(--t); }
.nav-item:hover {
  color: var(--text-sidebar-h);
  background: rgba(255,255,255,.06);
}
.nav-item.active {
  color: #c4b3ee;
  background: var(--bg-sidebar-item);
  border-color: rgba(124,58,237,.25);
}
.nav-item.active::before {
  content: '';
  position: absolute; left: 0; top: 20%; bottom: 20%;
  width: 3px; border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, #a78bfa, #7c3aed);
  box-shadow: 0 0 8px rgba(124,58,237,.6);
}

.nav-divider {
  height: 1px; background: rgba(255,255,255,.06);
  margin: .4rem .5rem;
}

.sidebar-footer {
  padding: .85rem .65rem;
  border-top: 1px solid rgba(255,255,255,.05);
  display: flex; align-items: center; gap: .5rem;
}
.user-info { display: flex; align-items: center; gap: .6rem; flex: 1; overflow: hidden; min-width: 0; }
.user-avatar {
  width: 36px; height: 36px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--primary), #4f46e5);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: .82rem; font-weight: 700; overflow: hidden;
  box-shadow: 0 2px 8px rgba(124,58,237,.35);
}
.user-avatar img { width: 100%; height: 100%; object-fit: cover; }
.user-details { overflow: hidden; min-width: 0; }
.user-name  { font-size: .8rem; font-weight: 600; color: rgba(255,255,255,.85); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-email { font-size: .7rem; color: var(--text-sidebar); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: .05rem; }

.btn-logout {
  color: var(--text-sidebar); padding: .4rem; border-radius: var(--radius-xs); flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  transition: color var(--t), background var(--t);
}
.btn-logout:hover { color: #f87171; background: rgba(220,38,38,.15); }

/* ─── Main content ───────────────────────────────────────────────────────── */
#main-content {
  flex: 1; margin-left: var(--sidebar-w);
  display: flex; flex-direction: column; min-height: 100vh;
  transition: margin-left .22s var(--ease);
}
#sidebar.collapsed ~ #main-content { margin-left: 62px; }

/* ─── Topbar ─────────────────────────────────────────────────────────────── */
.topbar {
  height: var(--topbar-h);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 1.75rem;
  position: sticky; top: 0; z-index: 50;
  box-shadow: var(--shadow-xs);
}
.page-title {
  font-family: var(--font-heading); font-size: 1.2rem; font-weight: 700;
  letter-spacing: -.01em;
}
.topbar-right { display: flex; align-items: center; gap: .65rem; }

.theme-toggle {
  width: 38px; height: 38px; border-radius: var(--radius-xs);
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-hover); color: var(--text-muted); font-size: 1rem;
  transition: background var(--t), color var(--t), transform var(--t);
  border: 1px solid var(--border);
}
.theme-toggle:hover { background: var(--primary-light); color: var(--primary); transform: rotate(15deg); }
[data-theme="light"] .theme-icon-dark  { display: none; }
[data-theme="dark"]  .theme-icon-light { display: none; }

.user-avatar-sm {
  width: 36px; height: 36px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #4f46e5);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: .82rem; font-weight: 700; overflow: hidden;
  box-shadow: 0 2px 8px rgba(124,58,237,.3);
}
.user-avatar-sm img { width: 100%; height: 100%; object-fit: cover; }

/* ─── Page content ───────────────────────────────────────────────────────── */
.page-content { flex: 1; padding: 1.75rem; }
.page-section { animation: fade-up .22s var(--ease) both; }
@keyframes fade-up { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ─── Cards ──────────────────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--t) var(--ease), border-color var(--t);
}
.card:hover { box-shadow: var(--shadow); }
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1.1rem; padding-bottom: .9rem;
  border-bottom: 1px solid var(--border);
}
.card-title {
  font-family: var(--font-heading); font-size: .975rem; font-weight: 700;
  letter-spacing: -.01em;
}

/* ─── Section header ─────────────────────────────────────────────────────── */
.section-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1.35rem; gap: 1rem;
}
.section-title {
  font-family: var(--font-heading); font-size: 1.15rem; font-weight: 700;
  letter-spacing: -.015em;
}

/* ─── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
  padding: .58rem 1.15rem; border-radius: var(--radius-sm);
  font-size: .875rem; font-weight: 600; font-family: var(--font);
  cursor: pointer; white-space: nowrap; line-height: 1.4;
  border: 1.5px solid transparent;
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease),
              background var(--t), border-color var(--t), color var(--t);
  position: relative; overflow: hidden;
}
.btn:hover  { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: linear-gradient(135deg, #7c3aed, #5b21b6);
  color: #fff; border-color: transparent;
  box-shadow: 0 4px 12px rgba(124,58,237,.3);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #6d28d9, #4c1d95);
  box-shadow: 0 6px 20px rgba(124,58,237,.45);
}

.btn-secondary {
  background: var(--bg-hover); color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover { background: var(--border); border-color: transparent; }

.btn-danger {
  background: var(--danger-bg); color: var(--danger);
  border-color: rgba(220,38,38,.25);
}
.btn-danger:hover { background: var(--danger); color: #fff; border-color: transparent; box-shadow: 0 4px 12px rgba(220,38,38,.3); }

.btn-success {
  background: var(--success-bg); color: var(--success);
  border-color: rgba(5,150,105,.25);
}
.btn-success:hover { background: var(--success); color: #fff; border-color: transparent; box-shadow: 0 4px 12px rgba(5,150,105,.3); }

.btn-sm  { padding: .38rem .8rem;  font-size: .8rem; border-radius: var(--radius-xs); }
.btn-icon{ padding: .45rem; }
.btn[disabled], .btn:disabled { opacity: .5; pointer-events: none; transform: none !important; box-shadow: none !important; }

/* ─── Badges ─────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: .3rem;
  padding: .22rem .7rem; border-radius: var(--radius-pill);
  font-size: .71rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
}
.badge-draft     { background: var(--bg-hover);     color: var(--text-muted); }
.badge-sending   { background: #fef3c7;              color: #92400e; }
.badge-completed { background: var(--success-bg);   color: var(--success); }
.badge-failed    { background: var(--danger-bg);     color: var(--danger); }
.badge-active    { background: var(--success-bg);   color: var(--success); }
.badge-inactive  { background: var(--bg-hover);     color: var(--text-muted); }
.badge-sent      { background: var(--success-bg);   color: var(--success); }
.badge-pending   { background: #fef3c7;              color: #92400e; }
[data-theme="dark"] .badge-sending { background: rgba(217,119,6,.18); color: #fbbf24; }

/* ─── Sending dot ────────────────────────────────────────────────────────── */
.sending-dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: var(--warning); flex-shrink: 0;
  animation: pulse-dot 1.5s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; box-shadow: 0 0 0 0 rgba(217,119,6,.5); }
  50%       { transform: scale(1.3); opacity: .8; box-shadow: 0 0 0 5px rgba(217,119,6,0); }
}

.sending-status-badge {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .24rem .7rem; border-radius: var(--radius-pill);
  background: #fef3c7; color: #92400e;
  font-size: .71rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  white-space: nowrap;
}
[data-theme="dark"] .sending-status-badge { background: rgba(217,119,6,.18); color: #fbbf24; }

/* ─── Tables ─────────────────────────────────────────────────────────────── */
.table-wrap {
  overflow-x: auto; border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
}
table { width: 100%; border-collapse: collapse; font-size: .875rem; }
thead { background: var(--bg-hover); }
th {
  padding: .8rem 1.1rem; text-align: left;
  font-size: .72rem; font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase; color: var(--text-muted);
  border-bottom: 1px solid var(--border); white-space: nowrap;
}
td {
  padding: .85rem 1.1rem; border-bottom: 1px solid var(--border);
  vertical-align: middle; color: var(--text);
}
tr:last-child td { border-bottom: none; }
tbody tr { transition: background var(--t); }
tbody tr:hover { background: var(--bg-hover); }

/* ─── Progress bar ───────────────────────────────────────────────────────── */
.progress-bar-wrap {
  background: var(--bg-hover); border-radius: var(--radius-pill);
  height: 6px; overflow: hidden;
}
.progress-bar {
  height: 100%; border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--primary), #818cf8);
  transition: width .5s var(--ease);
}

/* ─── Forms ──────────────────────────────────────────────────────────────── */
.form-group  { margin-bottom: 1.1rem; }
.form-label  { display: block; font-size: .82rem; font-weight: 600; color: var(--text-muted); margin-bottom: .4rem; letter-spacing: .01em; }
.form-hint   { font-size: .75rem; color: var(--text-muted); margin-top: .35rem; line-height: 1.5; }
.input-row   { display: flex; gap: .5rem; }
.input-row input { flex: 1; }

/* ─── Tag input ──────────────────────────────────────────────────────────── */
.tag-input-wrap {
  border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg-card); padding: .4rem .6rem;
  display: flex; flex-wrap: wrap; gap: .35rem; align-items: center;
  cursor: text; min-height: 44px;
  transition: border-color var(--t), box-shadow var(--t);
}
.tag-input-wrap:focus-within { border-color: var(--primary); box-shadow: var(--glow); }
.tag {
  display: inline-flex; align-items: center; gap: .3rem;
  background: var(--primary-light); color: var(--primary);
  border-radius: 5px; padding: .22rem .55rem;
  font-size: .78rem; font-weight: 600; line-height: 1;
}
.tag-remove { cursor: pointer; opacity: .6; font-size: .85rem; line-height: 1; transition: opacity var(--t); }
.tag-remove:hover { opacity: 1; }
.tag-input-wrap input {
  border: none; background: none; box-shadow: none !important;
  padding: .22rem .15rem; min-width: 130px; flex: 1; font-size: .875rem; width: auto;
}

/* ─── Variant tabs ───────────────────────────────────────────────────────── */
.variant-tabs { display: flex; gap: .35rem; margin-bottom: 1.1rem; flex-wrap: wrap; }
.variant-tab {
  padding: .42rem 1rem; border-radius: var(--radius-xs);
  font-size: .825rem; font-weight: 600; cursor: pointer;
  border: 1.5px solid var(--border);
  background: var(--bg-hover); color: var(--text-muted);
  transition: all var(--t) var(--ease);
}
.variant-tab:hover { border-color: var(--primary); color: var(--primary); }
.variant-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); box-shadow: 0 3px 10px rgba(124,58,237,.35); }
.variant-tab-add {
  padding: .42rem .9rem; border-radius: var(--radius-xs);
  font-size: .825rem; font-weight: 600; cursor: pointer;
  border: 1.5px dashed var(--border); background: transparent; color: var(--text-muted);
  transition: all var(--t) var(--ease);
}
.variant-tab-add:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }

/* ─── Modal ──────────────────────────────────────────────────────────────── */
#modal-container {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center; padding: 1rem;
}
.modal-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-xl);
  width: 100%; max-width: 560px;
  max-height: 90vh; overflow-y: auto;
  padding: 1.75rem;
  animation: modal-in .22s var(--ease) both;
  scrollbar-width: thin;
}
@keyframes modal-in { from { opacity: 0; transform: scale(.95) translateY(-12px); } to { opacity: 1; transform: none; } }
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.35rem; }
.modal-title  { font-family: var(--font-heading); font-size: 1.1rem; font-weight: 700; letter-spacing: -.01em; }
.modal-close  {
  color: var(--text-muted); padding: .3rem; border-radius: var(--radius-xs);
  font-size: 1rem; line-height: 1;
  transition: background var(--t), color var(--t);
  display: flex; align-items: center; justify-content: center;
}
.modal-close:hover { background: var(--danger-bg); color: var(--danger); }
.modal-footer {
  display: flex; gap: .65rem; justify-content: flex-end;
  margin-top: 1.35rem; padding-top: 1.1rem;
  border-top: 1px solid var(--border);
}

/* ─── Toast ──────────────────────────────────────────────────────────────── */
#toast-container {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  display: flex; flex-direction: column; gap: .5rem; z-index: 9999;
  pointer-events: none;
}
.toast {
  display: flex; align-items: center; gap: .7rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .8rem 1.1rem;
  box-shadow: var(--shadow-lg);
  font-size: .875rem; min-width: 260px; max-width: 380px;
  pointer-events: all; cursor: pointer;
  animation: toast-in .28s var(--ease) both;
}
@keyframes toast-in { from { opacity: 0; transform: translateX(24px) scale(.95); } to { opacity: 1; transform: none; } }
.toast-success { border-left: 3.5px solid var(--success); }
.toast-error   { border-left: 3.5px solid var(--danger);  }
.toast-info    { border-left: 3.5px solid var(--primary);  }

/* ─── Spinner / Loader ───────────────────────────────────────────────────── */
.spinner {
  width: 22px; height: 22px; border-radius: 50%;
  border: 2.5px solid var(--border);
  border-top-color: var(--primary);
  animation: spin .65s linear infinite; display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-center {
  display: flex; align-items: center; justify-content: center;
  padding: 4rem 2rem; gap: .75rem; color: var(--text-muted);
  font-size: .9rem;
}

/* ─── Empty state ────────────────────────────────────────────────────────── */
.empty-state {
  text-align: center; padding: 3.5rem 1.5rem; color: var(--text-muted);
}
.empty-state svg { opacity: .3; margin: 0 auto 1.1rem; }
.empty-state h3 {
  font-family: var(--font-heading); font-size: 1.1rem; font-weight: 700;
  margin-bottom: .4rem; color: var(--text);
}
.empty-state p { font-size: .875rem; max-width: 300px; margin: 0 auto; }

/* ─── Gmail cards ────────────────────────────────────────────────────────── */
.gmail-card {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 1.25rem; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius);
  margin-bottom: .75rem; gap: 1rem;
  transition: box-shadow var(--t) var(--ease), border-color var(--t), transform var(--t);
  box-shadow: var(--shadow-xs);
}
.gmail-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }
.gmail-card.is-active {
  border-color: rgba(124,58,237,.4);
  background: var(--primary-light);
  box-shadow: 0 4px 16px rgba(124,58,237,.12);
}
.gmail-info    { display: flex; align-items: center; gap: .85rem; flex: 1; min-width: 0; }
.gmail-avatar  {
  width: 42px; height: 42px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--primary), #4f46e5);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: .95rem;
  box-shadow: 0 2px 8px rgba(124,58,237,.3);
}
.gmail-email { font-weight: 600; font-size: .9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.gmail-meta  { font-size: .75rem; color: var(--text-muted); margin-top: .15rem; }
.gmail-actions { display: flex; gap: .4rem; flex-shrink: 0; }

/* ─── Dashboard — Welcome ────────────────────────────────────────────────── */
.dash-welcome {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1.75rem; flex-wrap: wrap; gap: 1rem;
}
.dash-welcome-title {
  font-family: var(--font-heading); font-size: 1.6rem; font-weight: 800;
  letter-spacing: -.025em; line-height: 1.2; margin-bottom: .25rem;
}
.dash-welcome-sub { font-size: .9rem; color: var(--text-muted); }

/* ─── Dashboard — Stat cards ─────────────────────────────────────────────── */
.dash-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.1rem; margin-bottom: 1.5rem;
}
.dash-stat-card {
  border-radius: var(--radius); padding: 1.4rem 1.3rem 1.1rem;
  display: flex; flex-direction: column; gap: .9rem;
  position: relative; overflow: hidden; border: none;
  box-shadow: var(--shadow-md);
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
}
.dash-stat-card::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.08) 0%, transparent 60%);
  pointer-events: none;
}
.dash-stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }

.dash-stat-blue   { background: linear-gradient(135deg, #4f46e5 0%, #2563eb 100%); }
.dash-stat-green  { background: linear-gradient(135deg, #059669 0%, #0d9488 100%); }
.dash-stat-purple { background: linear-gradient(135deg, #7c3aed 0%, #a855f7 100%); }
.dash-stat-orange { background: linear-gradient(135deg, #d97706 0%, #ea580c 100%); }

.dash-stat-icon {
  width: 46px; height: 46px; border-radius: 12px;
  background: rgba(255,255,255,.18);
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(4px);
}
.dash-stat-body { flex: 1; }
.dash-stat-value {
  font-family: var(--font-heading); font-size: 2.3rem; font-weight: 600;
  color: #fff; line-height: 1; letter-spacing: -.03em;
}
.dash-stat-label {
  font-size: .75rem; font-weight: 600; color: rgba(255,255,255,.72);
  text-transform: uppercase; letter-spacing: .06em; margin-top: .3rem;
}
.dash-stat-badge {
  display: inline-block; padding: .22rem .65rem;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,.2); color: rgba(255,255,255,.9);
  font-size: .7rem; font-weight: 700; letter-spacing: .04em;
  align-self: flex-start; backdrop-filter: blur(4px);
}

/* ─── Dashboard — Live alert ─────────────────────────────────────────────── */
.dash-live-alert {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .9rem 1.3rem; border-radius: var(--radius);
  background: linear-gradient(90deg, rgba(217,119,6,.12), rgba(217,119,6,.06));
  border: 1px solid rgba(217,119,6,.25);
  margin-bottom: 1.5rem; flex-wrap: wrap;
}
[data-theme="dark"] .dash-live-alert { background: linear-gradient(90deg, rgba(217,119,6,.1), rgba(217,119,6,.04)); }
.dash-live-alert a { font-size: .875rem; font-weight: 600; color: var(--primary); }
.dash-live-alert a:hover { text-decoration: underline; }

/* ─── Dashboard — Two-col grid ───────────────────────────────────────────── */
.dash-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1.25rem; margin-bottom: 1.25rem;
}

/* ─── Dashboard — Campaign list ──────────────────────────────────────────── */
.dash-campaign-list  { display: flex; flex-direction: column; gap: .5rem; }
.dash-campaign-item  {
  display: flex; align-items: center; justify-content: space-between;
  padding: .8rem .9rem; border-radius: var(--radius-sm);
  border: 1px solid var(--border); gap: .75rem;
  transition: background var(--t), border-color var(--t), transform var(--t);
}
.dash-campaign-item:hover { background: var(--bg-hover); border-color: rgba(124,58,237,.25); transform: translateX(2px); }
.dash-campaign-left  { display: flex; align-items: center; gap: .7rem; flex: 1; min-width: 0; }
.dash-campaign-icon  {
  width: 36px; height: 36px; border-radius: var(--radius-xs); flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.dash-campaign-icon.draft     { background: var(--bg-hover); color: var(--text-muted); }
.dash-campaign-icon.sending   { background: #fef3c7; color: #92400e; }
.dash-campaign-icon.completed { background: var(--success-bg); color: var(--success); }
.dash-campaign-icon.failed    { background: var(--danger-bg); color: var(--danger); }
[data-theme="dark"] .dash-campaign-icon.sending { background: rgba(217,119,6,.18); color: #fbbf24; }

/* ─── Dashboard — Account list ───────────────────────────────────────────── */
.dash-account-list { display: flex; flex-direction: column; gap: .5rem; }
.dash-account-item {
  display: flex; align-items: center; gap: .8rem;
  padding: .75rem .9rem; border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: background var(--t), border-color var(--t);
}
.dash-account-item:hover { background: var(--bg-hover); border-color: rgba(124,58,237,.2); }

/* ─── Dashboard — Quick actions ──────────────────────────────────────────── */
.dash-quick-actions {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: .9rem;
}
.dash-quick-btn {
  display: flex; flex-direction: column; align-items: center; gap: .7rem;
  padding: 1.35rem 1rem; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--bg-card); text-align: center;
  cursor: pointer;
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease), border-color var(--t);
}
.dash-quick-btn:hover {
  transform: translateY(-3px); box-shadow: var(--shadow-md);
  border-color: rgba(124,58,237,.3);
}
.dash-quick-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center; color: #fff;
  box-shadow: 0 6px 16px rgba(0,0,0,.2);
  transition: transform var(--t) var(--ease);
}
.dash-quick-btn:hover .dash-quick-icon { transform: scale(1.08); }

/* ─── Stats grid (legacy, keep for compat) ───────────────────────────────── */
.stats-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem; margin-bottom: 1.5rem;
}
.stat-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.35rem; box-shadow: var(--shadow-sm);
}
.stat-label { font-size: .75rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: .06em; margin-bottom: .45rem; }
.stat-value { font-family: var(--font-heading); font-size: 2rem; font-weight: 800; line-height: 1; letter-spacing: -.02em; }
.stat-sub   { font-size: .78rem; color: var(--text-muted); margin-top: .35rem; }

/* ─── Quill editor overrides ─────────────────────────────────────────────── */
.ql-toolbar {
  border-radius: var(--radius-sm) var(--radius-sm) 0 0 !important;
  border: 1.5px solid var(--border) !important;
  border-bottom: 1px solid var(--border) !important;
  background: var(--bg-hover) !important;
  font-family: var(--font) !important;
}
.ql-container {
  border-radius: 0 0 var(--radius-sm) var(--radius-sm) !important;
  border: 1.5px solid var(--border) !important;
  border-top: none !important;
  min-height: 200px; font-family: var(--font) !important;
}
.ql-container:focus-within {
  border-color: var(--primary) !important;
  box-shadow: var(--glow) !important;
}
.ql-editor {
  font-family: var(--font) !important;
  font-size: .9rem !important;
  color: var(--text) !important;
  min-height: 200px;
  line-height: 1.7 !important;
}
.ql-editor.ql-blank::before { color: var(--text-muted) !important; opacity: .7; font-style: normal !important; }
[data-theme="dark"] .ql-toolbar .ql-stroke { stroke: var(--text-muted) !important; }
[data-theme="dark"] .ql-toolbar .ql-fill   { fill:   var(--text-muted) !important; }
[data-theme="dark"] .ql-toolbar .ql-picker  { color:  var(--text-muted) !important; }
[data-theme="dark"] .ql-toolbar .ql-picker-options { background: var(--bg-card) !important; border-color: var(--border) !important; }
[data-theme="dark"] .ql-editor { background: var(--bg-card) !important; }

/* ─── Status dot ─────────────────────────────────────────────────────────── */
.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: .4rem; }
.status-dot.sent    { background: var(--success); }
.status-dot.failed  { background: var(--danger);  }
.status-dot.pending { background: var(--warning);  }

/* ─── Utility classes ────────────────────────────────────────────────────── */
.text-muted   { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger  { color: var(--danger); }
.text-primary { color: var(--primary); }
.fw-bold      { font-weight: 700; }
.mt-1         { margin-top: .5rem; }
.mt-2         { margin-top: 1rem; }
.mb-1         { margin-bottom: .5rem; }
.mb-2         { margin-bottom: 1rem; }
.gap-row      { display: flex; gap: .75rem; align-items: center; }
.flex-1       { flex: 1; }
.grid-2       { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 1200px) {
  .dash-stats { grid-template-columns: repeat(2, 1fr); }
  .dash-quick-actions { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .dash-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  #sidebar { width: 62px; }
  #sidebar .sidebar-logo span,
  #sidebar .nav-item span,
  #sidebar .user-details { display: none; }
  #sidebar .nav-item::before { display: none; }
  #main-content { margin-left: 62px; }
  .dash-stats { grid-template-columns: 1fr 1fr; }
  .page-content { padding: 1.1rem; }
  .topbar { padding: 0 1.1rem; }
}
@media (max-width: 580px) {
  .dash-stats { grid-template-columns: 1fr; }
  .dash-quick-actions { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .section-header { flex-direction: column; align-items: flex-start; }
}