/* SAAS ADMIN PANEL THEME */
:root {
    --bg-main: #f8fafc;
    --bg-surface: #ffffff;
    --border-color: #e2e8f0;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --success: #10b981;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --sidebar-bg: #ffffff;
    --sidebar-text: #475569;
    --sidebar-active: #eff6ff;
    --font-main: 'Inter', -apple-system, sans-serif;
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: var(--font-main);
    -webkit-font-smoothing: antialiased;
    line-height: 1.5;
}

a { text-decoration: none; }

/* Utilities */
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-primary { color: var(--primary); }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    font-family: var(--font-main);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 8px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
}
.btn-block { width: 100%; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: var(--danger-hover); }
.btn-outline-primary { background: white; border-color: var(--primary); color: var(--primary); }
.btn-outline-primary:hover { background: #eff6ff; }
.btn-icon { padding: 8px; background: transparent; border: 1px solid var(--border-color); color: var(--text-muted); border-radius: 8px; }
.btn-icon:hover { background: #f1f5f9; color: var(--text-main); }

.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 500; color: var(--text-main); margin-bottom: 6px; }
.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: var(--font-main);
    font-size: 0.95rem;
    color: var(--text-main);
    background: #ffffff;
    transition: border-color 0.2s;
}
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.form-control:disabled { background: #f1f5f9; color: var(--text-muted); cursor: not-allowed; }

/* LOGIN PAGE */
.login-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}
.login-card {
    background: var(--bg-surface);
    width: 100%;
    max-width: 400px;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.05);
    text-align: center;
}
.brand-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 30px;
}
.brand-logo .logo-icon { background: var(--primary); color: white; padding: 10px; border-radius: 10px; display: flex; }
.brand-logo h2 { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.5px; }

.login-card h3 { font-size: 1.25rem; font-weight: 600; margin-bottom: 8px; }
.login-card p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 25px; }

.login-form { text-align: left; }
.alert { padding: 12px; border-radius: 8px; display: flex; align-items: center; gap: 10px; font-size: 0.9rem; margin-bottom: 20px; }
.alert-error { background: #fef2f2; color: #dc2626; border: 1px solid #fecaca; }
.login-footer { margin-top: 30px; font-size: 0.8rem; color: var(--text-muted); }

/* ADMIN LAYOUT */
.admin-layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}
.sidebar-header {
    height: 70px;
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
}
.sidebar-header .logo-icon { background: var(--primary); color: white; padding: 6px; border-radius: 8px; display: flex; }
.sidebar-header .logo-icon svg { width: 18px; height: 18px; }
.sidebar-header .brand-name { font-weight: 700; font-size: 1.1rem; letter-spacing: -0.3px; }

.sidebar-nav {
    padding: 24px 16px;
    flex-grow: 1;
    overflow-y: auto;
}
.nav-label { font-size: 0.75rem; font-weight: 600; color: #94a3b8; letter-spacing: 1px; margin: 0 8px 12px 8px; }
.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    color: var(--sidebar-text);
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 4px;
    transition: all 0.2s;
}
.nav-item svg { width: 18px; height: 18px; color: #94a3b8; transition: color 0.2s; }
.nav-item:hover { background: #f8fafc; color: var(--text-main); }
.nav-item.active { background: var(--sidebar-active); color: var(--primary); }
.nav-item.active svg { color: var(--primary); }
.nav-item.text-danger:hover { background: #fef2f2; color: var(--danger); }
.nav-item.text-danger:hover svg { color: var(--danger); }

/* Main Content */
.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}
.topbar {
    height: 70px;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    z-index: 10;
}
.topbar-left h2 { font-size: 1.25rem; font-weight: 600; letter-spacing: -0.3px; }
.topbar-left p { font-size: 0.85rem; color: var(--text-muted); }
.topbar-right { display: flex; align-items: center; gap: 20px; }
.user-dropdown { display: flex; align-items: center; gap: 12px; cursor: pointer; padding-left: 20px; border-left: 1px solid var(--border-color); }
.avatar { width: 36px; height: 36px; background: #e0e7ff; color: var(--primary); border-radius: 50%; display: flex; justify-content: center; align-items: center; font-weight: 600; font-size: 0.9rem; }
.user-details { display: flex; flex-direction: column; }
.user-details .name { font-size: 0.9rem; font-weight: 600; }
.user-details .role { font-size: 0.75rem; color: var(--text-muted); }

.content-body {
    padding: 40px;
    max-width: 1400px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 30px;
}
.stat-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}
.stat-icon { width: 48px; height: 48px; border-radius: 12px; display: flex; justify-content: center; align-items: center; }
.stat-info { display: flex; flex-direction: column; }
.stat-label { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; margin-bottom: 4px; }
.stat-value { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.5px; }

/* Master Action Bar */
.master-action-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 20px 24px;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}
.master-action-bar h4 { font-size: 1.1rem; font-weight: 600; margin-bottom: 4px; }
.master-action-bar p { font-size: 0.9rem; color: var(--text-muted); }

/* Campaigns Grid */
.campaign-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 24px;
}
.campaign-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
    transition: all 0.2s;
}
.campaign-card.active-slot {
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(37,99,235,0.1);
}
.campaign-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f8fafc;
}
.campaign-header h4 { font-size: 0.95rem; font-weight: 600; color: var(--text-main); }
.status-badge { font-size: 0.75rem; font-weight: 600; padding: 4px 10px; border-radius: 20px; }
.status-badge.idle { background: #e2e8f0; color: #475569; }
.status-badge.running { background: #dcfce7; color: #166534; }

.campaign-body { padding: 20px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.label-with-action { display: flex; justify-content: space-between; align-items: center; }
.action-link { color: var(--primary); cursor: pointer; transition: 0.2s; background: #eff6ff; padding: 2px 8px; border-radius: 4px; font-size: 0.75rem; }
.action-link:hover { background: var(--primary); color: white; }

.campaign-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    background: #f8fafc;
}

/* Button States (Dynamic) */
.btn-lock-slot.locked {
    background: var(--success);
    border-color: var(--success);
    color: white;
}
.btn-lock-slot.locked svg { fill: white; }

/* Responsive adjustments */
@media (max-width: 1024px) {
    .sidebar { width: 80px; }
    .sidebar-header .brand-name, .sidebar-nav .nav-item span, .nav-label { display: none; }
    .sidebar-nav .nav-item { justify-content: center; padding: 12px; }
    .sidebar-nav .nav-item svg { margin: 0; }
}
@media (max-width: 768px) {
    .admin-layout { flex-direction: column; }
    .sidebar { width: 100%; height: auto; border-right: none; border-bottom: 1px solid var(--border-color); flex-direction: row; align-items: center; }
    .sidebar-nav { display: flex; padding: 10px; overflow-x: auto; white-space: nowrap; }
    .sidebar-header { border-bottom: none; border-right: 1px solid var(--border-color); padding: 0 16px; }
    .topbar { padding: 0 20px; }
    .content-body { padding: 20px; }
    .stats-grid { grid-template-columns: 1fr; }
    .master-action-bar { flex-direction: column; text-align: center; gap: 16px; }
    .campaign-grid { grid-template-columns: 1fr; }
}