/* ==========================================================================
   RadioBreak Schedule Manager - Main Design Tokens & Layout Shell
   ========================================================================== */

:root {
    --bg-base: #090a0f;
    --bg-card: #11131c;
    --bg-input: #151821;
    --bg-hover: #1e2230;
    --border-color: #1e2230;
    --border-subtle: #202433;
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --text-dim: #6b7280;
    
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --primary-glow: rgba(59, 130, 246, 0.2);
    
    --success: #10b981;
    --success-hover: #059669;
    --success-bg: rgba(16, 185, 129, 0.15);
    --success-border: rgba(16, 185, 129, 0.25);
    
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --danger-bg: rgba(239, 68, 68, 0.15);
    --danger-border: rgba(239, 68, 68, 0.25);
    
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.15);
    
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

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

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-base);
    color: var(--text-main);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.header {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 20px 30px;
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    color: #fff;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 20px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-email {
    color: var(--text-muted);
    font-size: 14px;
}

.content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    color: var(--text-main);
}

.login-container {
    max-width: 400px;
    margin: 100px auto;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    color: var(--text-main);
}

.login-container h2 {
    margin-bottom: 30px;
    color: var(--text-main);
    text-align: center;
}

/* Nav Tabs */
.nav-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-subtle);
    overflow-x: auto;
    white-space: nowrap;
}

.nav-tab {
    padding: 10px 18px;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-muted);
    transition: all 0.2s ease-in-out;
}

.nav-tab:hover {
    color: #60a5fa;
}

.nav-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Status Notifications */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
}

.error {
    background: var(--danger-bg);
    color: #f87171;
    padding: 15px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    border: 1px solid var(--danger-border);
}

.success {
    background: var(--success-bg);
    color: #34d399;
    padding: 15px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    border: 1px solid var(--success-border);
}

.hidden {
    display: none !important;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.spin {
    animation: spin 1s linear infinite;
}