:root {
    --bg: #0d1117;
    --bg-deep: #090c10;
    --card: #12161f;
    --card-soft: #161c27;
    --card-raised: #1a2130;
    --border: #242c3a;
    --border-soft: #1b2230;
    --text: #e9edf4;
    --text-dim: #b3bccd;
    --muted: #7a8499;
    --primary: #5865f2;
    --primary-hover: #6a76f5;
    --primary-soft: rgba(88, 101, 242, 0.14);
    --accent: #23a55a;
    --accent-soft: rgba(35, 165, 90, 0.14);
    --danger: #f23f43;
    --danger-soft: rgba(242, 63, 67, 0.12);
    --success: #23a55a;
    --success-soft: rgba(35, 165, 90, 0.14);
    --warning: #f0b232;
    --warning-soft: rgba(240, 178, 50, 0.13);
    --violet: #9b6af5;
    --violet-soft: rgba(155, 106, 245, 0.14);
    --teal: #1fb8a6;
    --teal-soft: rgba(31, 184, 166, 0.13);
    --pink: #eb5c9d;
    --pink-soft: rgba(235, 92, 157, 0.13);
    --sidebar: #0b0e13;
    --sidebar-active: #191f2b;
    --sidebar-text: #a9b2c2;
    --sidebar-muted: #5c6577;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 6px 24px rgba(0, 0, 0, 0.28);
    --radius: 12px;
    --radius-sm: 8px;
    --font: "Inter", "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
    --mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    line-height: 1.55;
    font-size: 14px;
}

a { color: #8b94f7; text-decoration: none; }
a:hover { color: #aab1fa; text-decoration: underline; }

::selection { background: rgba(88, 101, 242, 0.35); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #262f40; border-radius: 999px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: #333e54; }

.icon-svg { display: inline-flex; flex-shrink: 0; }

/* ============ APP SHELL ============ */
.app-shell { display: flex; min-height: 100vh; }

/* ============ SIDEBAR ============ */
.sidebar {
    width: 252px;
    flex-shrink: 0;
    background: var(--sidebar);
    border-right: 1px solid var(--border-soft);
    color: var(--sidebar-text);
    padding: 16px 12px 14px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sidebar .brand {
    display: flex;
    align-items: center;
    gap: 11px;
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
    margin: 2px 8px 4px;
    letter-spacing: 0.01em;
}

.sidebar .brand .brand-logo {
    width: 32px;
    height: 32px;
    border-radius: 9px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--violet) 100%);
    color: #fff;
    box-shadow: 0 4px 14px rgba(88, 101, 242, 0.35);
}

.sidebar .brand .brand-text small {
    display: block;
    font-size: 0.66rem;
    font-weight: 500;
    color: var(--sidebar-muted);
    letter-spacing: 0.04em;
}

.sidebar .section-label {
    margin: 16px 12px 5px;
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--sidebar-muted);
}

.sidebar nav { display: flex; flex-direction: column; gap: 1px; }

.sidebar nav a {
    position: relative;
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 8px 11px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--sidebar-text);
    font-size: 0.875rem;
    font-weight: 500;
    transition: background 0.12s ease, color 0.12s ease;
}

.sidebar nav a:hover { background: var(--sidebar-active); color: #fff; text-decoration: none; }

.sidebar nav a.active {
    background: var(--primary-soft);
    color: #fff;
    font-weight: 600;
}

.sidebar nav a.active::before {
    content: "";
    position: absolute;
    left: -12px;
    top: 8px;
    bottom: 8px;
    width: 3px;
    border-radius: 0 3px 3px 0;
    background: var(--primary);
}

.sidebar nav a .icon-svg { color: var(--sidebar-muted); }
.sidebar nav a:hover .icon-svg,
.sidebar nav a.active .icon-svg { color: var(--primary-hover); }

.sidebar nav a .badge { margin-left: auto; }

.sidebar-footer {
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px solid var(--border-soft);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 11px;
    background: var(--sidebar-active);
    border-radius: 9px;
}

.sidebar-user .avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--violet));
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
}

.sidebar-user .who { min-width: 0; flex: 1; }
.sidebar-user .who strong { display: block; color: #fff; font-size: 0.8rem; font-weight: 600; line-height: 1.25; }
.sidebar-user .who span { display: block; color: var(--sidebar-muted); font-size: 0.68rem; line-height: 1.25; }

.sidebar-user a { color: var(--sidebar-muted); display: flex; padding: 4px; border-radius: 6px; }
.sidebar-user a:hover { color: var(--danger); background: var(--danger-soft); text-decoration: none; }

/* ============ MAIN ============ */
.main { flex: 1; min-width: 0; padding-bottom: 60px; }

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    background: rgba(11, 14, 19, 0.88);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-soft);
    padding: 12px 28px;
    position: sticky;
    top: 0;
    z-index: 30;
}

.page-title { font-size: 1rem; font-weight: 700; color: #fff; line-height: 1.3; }
.page-sub { color: var(--muted); font-size: 0.78rem; }

.topbar-right { display: flex; align-items: center; gap: 10px; }

.container { max-width: 1280px; margin: 26px auto; padding: 0 28px; }

.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; margin-bottom: 22px; flex-wrap: wrap; }
.page-head .titles h1 { margin: 0 0 4px; }
.page-head .titles .page-sub { max-width: 640px; }
.page-head .page-actions { display: flex; gap: 9px; align-items: center; flex-wrap: wrap; }

h1 { font-size: 1.4rem; margin: 2px 0 18px; font-weight: 700; color: #fff; letter-spacing: -0.01em; }
h2 { font-size: 1.05rem; margin: 0 0 10px; color: #fff; }
h3 { font-size: 0.95rem; margin: 0 0 8px; color: var(--text); font-weight: 600; }

/* ============ CARDS ============ */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px 24px;
    margin-bottom: 18px;
    box-shadow: var(--shadow);
}

.card h2 { font-size: 1rem; font-weight: 700; margin: 0 0 6px; }
.card h3 { font-size: 0.92rem; }

/* ============ TABLES ============ */
.table-wrap { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; }

th, td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-soft);
    font-size: 0.85rem;
    vertical-align: middle;
}

th {
    color: var(--muted);
    font-weight: 600;
    font-size: 0.67rem;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

tr:last-child td { border-bottom: none; }
tbody tr:hover td, table tr:hover td { background: rgba(88, 101, 242, 0.05); }

td strong { color: #fff; font-weight: 600; }

/* ============ BUTTONS ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 8px 15px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--card-raised);
    color: var(--text);
    text-decoration: none;
    font-size: 0.84rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
    line-height: 1.25;
    white-space: nowrap;
}

.btn:hover { background: #202839; border-color: #2e3a52; color: #fff; text-decoration: none; }

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); color: #fff; box-shadow: 0 4px 16px rgba(88, 101, 242, 0.3); }

.btn-success { background: var(--success); border-color: var(--success); color: #fff; }
.btn-success:hover { background: #2bb96b; border-color: #2bb96b; color: #fff; }

.btn-danger { color: var(--danger); border-color: rgba(242, 63, 67, 0.32); background: transparent; }
.btn-danger:hover { background: var(--danger-soft); border-color: var(--danger); color: #ff8083; }

.btn-ghost { border-color: transparent; background: transparent; color: var(--text-dim); }
.btn-ghost:hover { background: var(--card-raised); color: #fff; }

.btn-sm { padding: 4px 11px; font-size: 0.78rem; border-radius: 7px; }

.btn-icon { padding: 7px 9px; }

form.inline { display: inline; }

.actions { display: flex; gap: 7px; align-items: center; flex-wrap: wrap; }

/* ============ FORMS ============ */
.row { display: flex; gap: 16px; flex-wrap: wrap; }
.row > .field { flex: 1; min-width: 210px; }

.field { margin-bottom: 14px; }

.field label {
    display: block;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-dim);
    margin-bottom: 5px;
}

.field input, .field select, .field textarea, .input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.87rem;
    font-family: inherit;
    background: var(--bg-deep);
    color: var(--text);
    transition: border-color 0.12s ease, box-shadow 0.12s ease;
}

.field input::placeholder, .field textarea::placeholder { color: #4f5a70; }

.field input:focus, .field select:focus, .field textarea:focus, .input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(88, 101, 242, 0.16);
}

.field select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%237a8499' d='M1.4.6 6 5.2 10.6.6 12 2 6 8 0 2z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

.field textarea { resize: vertical; font-family: var(--mono); font-size: 0.83rem; line-height: 1.6; }

.field input[type="checkbox"], .field input[type="radio"] {
    width: auto;
    padding: 0;
    border: none;
    vertical-align: middle;
    accent-color: var(--primary);
}

.checkbox-label {
    display: flex !important;
    align-items: center;
    gap: 8px;
    font-size: 0.86rem;
    font-weight: 500 !important;
    color: var(--text) !important;
    margin-bottom: 8px;
    cursor: pointer;
}

.hint { font-size: 0.77rem; color: var(--muted); margin-top: 5px; line-height: 1.55; }

/* ============ BADGES ============ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 2px 9px;
    border-radius: 999px;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.badge-active, .badge-sent, .badge-read, .badge-delivered { background: var(--success-soft); color: #4ade80; }
.badge-unsubscribed, .badge-queued { background: rgba(122, 132, 153, 0.15); color: var(--muted); }
.badge-bounced, .badge-failed { background: var(--danger-soft); color: #ff7a7d; }
.badge-complained { background: var(--warning-soft); color: var(--warning); }
.badge-notify { background: var(--danger); color: #fff; font-size: 0.66rem; padding: 1px 7px; }
.badge-neutral { background: rgba(122, 132, 153, 0.15); color: var(--text-dim); }
.badge-info { background: var(--primary-soft); color: #9aa2f9; }
.badge-violet { background: var(--violet-soft); color: var(--violet); }
.badge-teal { background: var(--teal-soft); color: var(--teal); }
.badge-pink { background: var(--pink-soft); color: var(--pink); }
.badge-dot::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* ============ STATS ============ */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; margin-bottom: 22px; }

.stat {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 18px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.stat .stat-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.stat .label { color: var(--muted); font-size: 0.76rem; font-weight: 600; letter-spacing: 0.02em; }
.stat .num { font-size: 1.7rem; font-weight: 700; color: #fff; font-variant-numeric: tabular-nums; line-height: 1.15; }
.stat .trend { font-size: 0.72rem; color: var(--muted); }

.stat .stat-ico {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat .stat-ico.blue { background: var(--primary-soft); color: var(--primary-hover); }
.stat .stat-ico.green { background: var(--success-soft); color: var(--success); }
.stat .stat-ico.red { background: var(--danger-soft); color: var(--danger); }
.stat .stat-ico.violet { background: var(--violet-soft); color: var(--violet); }
.stat .stat-ico.teal { background: var(--teal-soft); color: var(--teal); }
.stat .stat-ico.amber { background: var(--warning-soft); color: var(--warning); }

/* ============ ALERTS ============ */
.alert {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 16px;
    font-size: 0.86rem;
    border: 1px solid transparent;
}

.alert-success { background: var(--success-soft); color: #6ee7a0; border-color: rgba(35, 165, 90, 0.28); }
.alert-danger { background: var(--danger-soft); color: #ff8a8d; border-color: rgba(242, 63, 67, 0.28); }
.alert-info { background: var(--primary-soft); color: #aab1fa; border-color: rgba(88, 101, 242, 0.28); }

/* ============ EMPTY STATES ============ */
.empty {
    text-align: center;
    padding: 38px 20px;
    color: var(--muted);
}

.empty .empty-ico {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    margin: 0 auto 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-raised);
    color: var(--muted);
}

.empty .empty-title { color: var(--text-dim); font-weight: 600; font-size: 0.95rem; margin-bottom: 4px; }
.empty .hint { margin-top: 0; }

/* ============ LOGIN ============ */
.login-wrap { max-width: 390px; margin: 10vh auto; padding: 32px 30px; }

.login-brand { display: flex; align-items: center; gap: 13px; margin-bottom: 24px; }

.login-brand .logo {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--violet) 100%);
    box-shadow: 0 8px 22px rgba(88, 101, 242, 0.4);
    color: #fff;
    flex-shrink: 0;
}

.login-brand h1 { margin: 0; font-size: 1.15rem; }
.login-brand .page-sub { margin-top: 1px; }

/* ============ MISC ============ */
.muted { color: var(--muted); }

code {
    background: var(--card-raised);
    color: #9aa2f9;
    padding: 1px 6px;
    border-radius: 5px;
    font-size: 0.82em;
    font-family: var(--mono);
    word-break: break-all;
}

.kbd {
    display: inline-block;
    padding: 1px 6px;
    border-radius: 5px;
    border: 1px solid var(--border);
    border-bottom-width: 2px;
    background: var(--card-raised);
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--text-dim);
}

/* ============ SETTINGS ============ */
.settings-shell { display: flex; gap: 22px; align-items: flex-start; }

.settings-nav {
    width: 236px;
    flex-shrink: 0;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 12px;
    position: sticky;
    top: 78px;
    box-shadow: var(--shadow);
}

.settings-group { margin-bottom: 16px; }
.settings-group:last-child { margin-bottom: 2px; }

.settings-group-label {
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--sidebar-muted);
    margin: 0 10px 5px;
}

.settings-nav a {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 7px 10px;
    border-radius: 7px;
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 500;
    margin-bottom: 1px;
    border-left: 2px solid transparent;
    transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
}

.settings-nav a .icon-svg { color: var(--muted); }

.settings-nav a:hover { background: var(--primary-soft); color: #fff; text-decoration: none; }
.settings-nav a:hover .icon-svg { color: var(--primary-hover); }

.settings-nav a.active {
    background: var(--primary-soft);
    color: #fff;
    border-left-color: var(--primary);
    font-weight: 600;
}

.settings-nav a.active .icon-svg { color: var(--primary-hover); }

.settings-content { flex: 1; min-width: 0; }
.settings-section-card { scroll-margin-top: 78px; }

.section-heading {
    display: flex;
    align-items: flex-start;
    gap: 13px;
    margin-bottom: 14px;
}

.section-heading .icon-box {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.section-heading .icon-box.blue { background: var(--primary-soft); color: var(--primary-hover); }
.section-heading .icon-box.teal { background: var(--teal-soft); color: var(--teal); }
.section-heading .icon-box.green { background: var(--success-soft); color: var(--success); }
.section-heading .icon-box.amber { background: var(--warning-soft); color: var(--warning); }
.section-heading .icon-box.red { background: var(--danger-soft); color: var(--danger); }
.section-heading .icon-box.violet { background: var(--violet-soft); color: var(--violet); }
.section-heading .icon-box.pink { background: var(--pink-soft); color: var(--pink); }

.section-heading h2 { margin: 0; }
.section-heading .section-desc { margin: 2px 0 0; }

.divider { height: 1px; background: var(--border-soft); margin: 16px 0; }

.subpanel {
    background: var(--bg-deep);
    border: 1px solid var(--border-soft);
    border-radius: 10px;
    padding: 16px 16px 4px;
    margin-top: 14px;
}

.subpanel-title {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin: 0 0 12px;
}

.btn-toolbar { display: flex; gap: 9px; align-items: center; flex-wrap: wrap; margin: 10px 0 12px; }

.pill-tabs { display: flex; gap: 8px; flex-wrap: wrap; }

.pill-tabs a {
    display: inline-flex;
    align-items: center;
    padding: 6px 13px;
    border-radius: 999px;
    background: var(--card-soft);
    border: 1px solid var(--border);
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.12s ease;
}

.pill-tabs a:hover { background: var(--primary-soft); border-color: var(--primary); color: #fff; text-decoration: none; }

/* ============ VARIANT PICKER ============ */
.variant-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(136px, 1fr));
    gap: 9px;
    margin: 8px 0 4px;
}

.variant-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 7px;
    padding: 12px 8px 10px;
    background: var(--bg-deep);
    border: 1px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
    text-align: center;
    transition: border-color 0.12s ease, background 0.12s ease, box-shadow 0.12s ease;
}

.variant-card input { position: absolute; opacity: 0; pointer-events: none; }

.variant-card .variant-swatch {
    width: 40px;
    height: 40px;
    border-radius: 9px;
    box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.12), 0 3px 8px rgba(0, 0, 0, 0.4);
}

.variant-card .variant-name { font-size: 0.72rem; font-weight: 600; color: var(--text-dim); line-height: 1.3; }
.variant-card:hover { border-color: #33405a; }

.variant-card:has(input:checked) {
    border-color: var(--primary);
    background: var(--primary-soft);
    box-shadow: 0 0 0 3px rgba(88, 101, 242, 0.14);
}

.variant-card:has(input:checked) .variant-name { color: #fff; }

/* ============ MISC HELPERS ============ */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }

@media (max-width: 1000px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

.toolbar {
    display: flex;
    align-items: flex-end;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.toolbar .field { margin-bottom: 0; min-width: 170px; }

.mono { font-family: var(--mono); font-size: 0.83rem; }

/* ============ RESPONSIVE ============ */
@media (max-width: 1100px) {
    .settings-shell { flex-direction: column; }
    .settings-nav { width: 100%; position: static; display: flex; flex-wrap: wrap; align-items: center; gap: 2px; }
    .settings-group { margin-bottom: 8px; display: contents; }
    .settings-group-label { width: 100%; margin-top: 6px; }
}

@media (max-width: 900px) {
    .app-shell { flex-direction: column; }
    .sidebar { width: 100%; height: auto; position: static; padding: 12px; }
    .sidebar nav a.active::before { display: none; }
    .main { padding-bottom: 40px; }
    .container { padding: 0 16px; }
    .topbar { padding: 12px 16px; }
}