/* ChatFlow AI Pro v4 - Professional Dark Theme */
:root {
    --primary: #25D366;
    --primary-hover: #1ebe5a;
    --bg: #0a0a0f;
    --sidebar-bg: #0d0d14;
    --card-bg: #12121a;
    --input-bg: #1a1a24;
    --border: #1f1f2e;
    --text: #ffffff;
    --text-muted: #6b7280;
    --danger: #ef4444;
    --warning: #f59e0b;
    --success: #10b981;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background: var(--sidebar-bg);
    height: 100vh;
    position: fixed;
    right: 0;
    top: 0;
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-header .logo {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), #128c7e);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.sidebar-header h1 { font-size: 18px; font-weight: 700; }
.sidebar-header .version {
    font-size: 10px;
    padding: 2px 8px;
    background: rgba(37,211,102,0.15);
    color: var(--primary);
    border-radius: 10px;
    margin-right: auto;
}

.nav-menu {
    list-style: none;
    padding: 16px 12px;
    flex: 1;
}

.nav-menu li { margin-bottom: 4px; }

.nav-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 10px;
    font-size: 14px;
    transition: all 0.2s;
}

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

.nav-menu a.active {
    background: rgba(37,211,102,0.15);
    color: var(--primary);
}

.nav-menu .icon { font-size: 18px; width: 24px; text-align: center; }
.nav-divider { height: 1px; background: var(--border); margin: 16px 0; }
.nav-menu a.logout { color: var(--danger); }

/* Main */
.main-content {
    margin-right: 250px;
    padding: 30px;
    min-height: 100vh;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.page-header h1 {
    font-size: 26px;
    font-weight: 700;
}

.page-header p {
    color: var(--text-muted);
    margin-top: 4px;
    font-size: 14px;
}

.bot-status {
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 14px;
}
.bot-status.active { background: rgba(16,185,129,0.15); color: var(--success); }
.bot-status.inactive { background: rgba(239,68,68,0.15); color: var(--danger); }

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.2s;
}

.stat-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.stat-card .icon { font-size: 28px; margin-bottom: 12px; }
.stat-card .value { font-size: 32px; font-weight: 700; }
.stat-card .label { color: var(--text-muted); font-size: 13px; margin-top: 4px; }

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
}

.card h3 { font-size: 16px; margin-bottom: 16px; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 10px;
    border: none;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #1ebe5a);
    color: #000;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 4px 15px rgba(37,211,102,0.3); }

.btn-secondary {
    background: var(--input-bg);
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--primary); }

.btn-lg { padding: 16px 32px; font-size: 16px; }
.btn-sm { padding: 8px 16px; font-size: 13px; }

/* Forms */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 500; font-size: 14px; }
.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--input-bg);
    color: var(--text);
    font-size: 14px;
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}
.form-group small { display: block; margin-top: 6px; color: var(--text-muted); font-size: 12px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* Tables */
table { width: 100%; border-collapse: collapse; }
th, td { padding: 14px 16px; text-align: right; border-bottom: 1px solid var(--border); }
th { background: var(--input-bg); font-weight: 600; color: var(--text-muted); font-size: 12px; text-transform: uppercase; }
tbody tr:hover { background: rgba(255,255,255,0.02); }

/* Badges */
.badge { display: inline-block; padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge-success { background: rgba(16,185,129,0.15); color: var(--success); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-danger { background: rgba(239,68,68,0.15); color: var(--danger); }

/* Alerts */
.alert { padding: 16px; border-radius: 12px; margin-bottom: 24px; }
.alert-success { background: rgba(37,211,102,0.1); border: 1px solid rgba(37,211,102,0.3); color: var(--primary); }
.alert-danger { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: var(--danger); }

/* Login */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-box {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 48px;
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-box .logo {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary), #128c7e);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    margin: 0 auto 20px;
}

.login-box h1 { font-size: 22px; margin-bottom: 8px; }
.login-box .subtitle { color: var(--text-muted); margin-bottom: 30px; font-size: 14px; }
.login-box .form-group { text-align: right; }
.login-box .btn { width: 100%; padding: 14px; margin-top: 8px; }
.login-error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: var(--danger); padding: 12px; border-radius: 10px; margin-bottom: 20px; }

/* Empty State */
.empty-state { text-align: center; padding: 60px 20px; }
.empty-state .icon { font-size: 64px; margin-bottom: 16px; opacity: 0.5; }

/* Responsive */
@media (max-width: 1024px) {
    .sidebar { transform: translateX(100%); }
    .main-content { margin-right: 0; }
}
@media (max-width: 768px) {
    .page-header { flex-direction: column; align-items: flex-start; gap: 16px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .form-row { grid-template-columns: 1fr; }
}