:root {
  color-scheme: dark;
  --bg: #070b14;
  --bg-glow: radial-gradient(circle at 12% -10%, #1c2f57 0%, transparent 40%),
    radial-gradient(circle at 90% 0%, #2a1c4d 0%, transparent 35%);
  --surface: rgba(18, 27, 46, 0.72);
  --surface-solid: #101a2e;
  --surface-2: #0a1424;
  --border: rgba(140, 165, 214, 0.14);
  --border-strong: rgba(140, 165, 214, 0.28);
  --text: #f3f6fc;
  --muted: #8fa0bd;
  --faint: #5b6a88;
  --brand: #5b8dff;
  --brand-2: #9c6bff;
  --brand-gradient: linear-gradient(135deg, var(--brand), var(--brand-2));
  --success: #38d996;
  --success-bg: rgba(56, 217, 150, 0.12);
  --danger: #ff6b81;
  --danger-bg: rgba(255, 107, 129, 0.12);
  --warn: #ffb648;
  --warn-bg: rgba(255, 182, 72, 0.12);
  --radius-sm: 8px;
  --radius: 16px;
  --radius-lg: 22px;
  --shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.55);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg-glow), var(--bg);
  background-attachment: fixed;
  color: var(--text);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: #a9c4ff; text-decoration: none; transition: color 0.15s var(--ease); }
a:hover { color: #cddcff; }

h1, h2, h3 { margin: 0.15rem 0; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.4rem, 3vw, 1.85rem); font-weight: 750; }
h2 { font-size: 1.15rem; font-weight: 700; }

.eyebrow {
  color: var(--brand);
  text-transform: uppercase;
  font-weight: 700;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
}

/* --- Top nav --- */
.topnav {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(7, 11, 20, 0.78);
  border-bottom: 1px solid var(--border);
}

.topnav-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 22px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
}

.brand-mark .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--brand-gradient);
  box-shadow: 0 0 14px rgba(91, 141, 255, 0.7);
}

.nav-pills {
  display: flex;
  gap: 4px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  padding: 4px;
  border-radius: 100px;
}

.nav-pills a {
  color: var(--muted);
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 0.86rem;
  font-weight: 600;
  transition: all 0.18s var(--ease);
}

.nav-pills a:hover { color: var(--text); background: rgba(255, 255, 255, 0.05); }

.nav-pills a.active {
  color: #fff;
  background: var(--brand-gradient);
  box-shadow: 0 6px 18px -6px rgba(91, 141, 255, 0.6);
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.84rem;
  color: var(--muted);
}

.nav-user strong { color: var(--text); font-weight: 650; }

.nav-user .logout {
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 7px 14px;
  border-radius: 100px;
  font-weight: 600;
  transition: all 0.18s var(--ease);
}

.nav-user .logout:hover { color: var(--danger); border-color: rgba(255, 107, 129, 0.4); }

/* --- Layout --- */
.layout { max-width: 1180px; margin: 0 auto; padding: 28px 22px 60px; }
.page-head { margin-bottom: 18px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 0 0 22px;
}

.stats > div {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}

.stats strong { display: block; font-size: 1.6rem; font-weight: 750; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.stats span { display: block; color: var(--muted); font-size: 0.78rem; margin-top: 4px; }

.composer, .history, .account-card { padding: 26px; margin-top: 18px; }
.composer form, .account-card form { display: grid; gap: 14px; margin-top: 18px; max-width: 760px; }

label { font-weight: 650; font-size: 0.92rem; }
label small { float: right; color: var(--faint); font-weight: 500; }

input, textarea {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  outline: none;
  transition: border-color 0.15s var(--ease), box-shadow 0.15s var(--ease);
}

input:focus, textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(91, 141, 255, 0.18);
}

input::placeholder, textarea::placeholder { color: var(--faint); }

button, .button {
  border: 0;
  border-radius: 100px;
  background: var(--brand-gradient);
  color: white;
  padding: 12px 22px;
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  width: max-content;
  box-shadow: 0 10px 24px -10px rgba(91, 141, 255, 0.55);
  transition: transform 0.15s var(--ease), box-shadow 0.15s var(--ease), filter 0.15s var(--ease);
}

button:hover, .button:hover { transform: translateY(-1px); filter: brightness(1.06); }
button:active, .button:active { transform: translateY(0); }

.schedule { display: flex; align-items: end; gap: 18px; }
.schedule > label:first-child { flex: 1; }
.check { padding-bottom: 11px; font-weight: 500; }
.check input { display: inline; width: auto; margin-right: 6px; }

.weekdays { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.weekdays .check {
  padding: 7px 13px 7px 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 100px;
  transition: all 0.15s var(--ease);
}
.weekdays .check:has(input:checked) {
  background: rgba(91, 141, 255, 0.14);
  border-color: rgba(91, 141, 255, 0.5);
  color: #cddcff;
}

.table-wrap { overflow: auto; margin-top: 16px; border-radius: var(--radius-sm); }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { text-align: left; border-top: 1px solid var(--border); padding: 14px 12px; vertical-align: top; }
th { color: var(--faint); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; font-weight: 700; }
tbody tr { transition: background 0.15s var(--ease); }
tbody tr:hover { background: rgba(255, 255, 255, 0.025); }
td small { display: block; color: var(--muted); max-width: 520px; margin-top: 2px; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 100px;
  padding: 5px 12px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
}

.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

.badge.sent { background: var(--success-bg); color: var(--success); }
.badge.failed { background: var(--danger-bg); color: var(--danger); }
.badge.scheduled, .badge.processing { background: rgba(91, 141, 255, 0.14); color: #a9c4ff; }
.badge.cancelled { background: rgba(255, 255, 255, 0.06); color: var(--faint); }

.link { background: none; padding: 0; box-shadow: none; width: auto; color: #a9c4ff; font-weight: 600; }
.link:hover { background: none; transform: none; color: #cddcff; }
.danger, .error-text { color: var(--danger) !important; }

.alert {
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  background: rgba(91, 141, 255, 0.1);
  border: 1px solid rgba(91, 141, 255, 0.25);
  margin-bottom: 16px;
  font-size: 0.9rem;
}
.alert.error { background: var(--danger-bg); border-color: rgba(255, 107, 129, 0.3); }
.alert.success { background: var(--success-bg); border-color: rgba(56, 217, 150, 0.3); }

.auth { width: min(430px, calc(100% - 32px)); margin: 9vh auto; padding: 32px; }
.auth form { display: grid; gap: 14px; margin-top: 22px; }
.auth p { color: var(--muted); }
.auth-logo {
  width: 44px; height: 44px; border-radius: 14px;
  background: var(--brand-gradient);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 24px -8px rgba(91, 141, 255, 0.6);
  margin-bottom: 14px;
}

/* --- Icon pill action buttons (table rows) --- */
.actions { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.inline-form { display: inline-flex; }

.icon-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  border-radius: 100px;
  padding: 7px 13px 7px 10px;
  font-size: 0.78rem;
  font-weight: 650;
  cursor: pointer;
  box-shadow: none;
  width: auto;
  transition: all 0.15s var(--ease);
}
.icon-btn svg { width: 14px; height: 14px; flex-shrink: 0; }
.icon-btn:hover { transform: translateY(-1px); background: rgba(255, 255, 255, 0.06); color: var(--text); }

.icon-btn-edit:hover { border-color: rgba(91, 141, 255, 0.5); color: #a9c4ff; }
.icon-btn-toggle:hover { border-color: rgba(255, 182, 72, 0.5); color: var(--warn); }
.icon-btn-enable:hover { border-color: rgba(56, 217, 150, 0.5); color: var(--success); }
.icon-btn-danger:hover { border-color: rgba(255, 107, 129, 0.5); color: var(--danger); }

/* --- Account page --- */
.account-card { max-width: 560px; }
.hint { color: var(--faint); font-size: 0.82rem; margin-top: -4px; }
hr.sep { border: none; border-top: 1px solid var(--border); margin: 6px 0 4px; }

@media (max-width: 720px) {
  .topnav-inner { gap: 10px; }
  .nav-pills { order: 3; width: 100%; justify-content: center; }
  .stats { grid-template-columns: 1fr 1fr; }
  .schedule { display: block; }
  .check { display: block; margin-top: 12px; }
  table { min-width: 620px; }
}