@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    /* Light Theme (Default fallback, overridden by body.theme-dark) */
    --color-bg-base: #f1f5f9;
    --color-bg-surface: #ffffff;
    --color-bg-surface-hover: #f8fafc;
    --color-text-primary: #0f172a;
    --color-text-secondary: #64748b;
    --color-primary: #4f46e5;
    --color-primary-hover: #4338ca;
    --color-primary-light: rgba(79, 70, 229, 0.1);
    --color-danger: #ef4444;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-border: #e2e8f0;
    --color-shadow: rgba(0, 0, 0, 0.05);
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    --transition-speed: 0.3s;
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body.theme-light {
    --color-bg-base: #f1f5f9;
    --color-bg-surface: #ffffff;
    --color-bg-surface-hover: #f8fafc;
    --color-text-primary: #0f172a;
    --color-text-secondary: #64748b;
    --color-primary: #4f46e5;
    --color-primary-hover: #4338ca;
    --color-primary-light: rgba(79, 70, 229, 0.1);
    --color-border: #e2e8f0;
    --color-shadow: rgba(0, 0, 0, 0.05);
}

body.theme-dark {
    --color-bg-base: #09090b;
    --color-bg-surface: #18181b;
    --color-bg-surface-hover: #27272a;
    --color-text-primary: #fafafa;
    --color-text-secondary: #a1a1aa;
    --color-primary: #6366f1;
    --color-primary-hover: #818cf8;
    --color-primary-light: rgba(99, 102, 241, 0.15);
    --color-border: #27272a;
    --color-shadow: rgba(0, 0, 0, 0.5);
}

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

body {
    font-family: var(--font-family);
    background-color: var(--color-bg-base);
    color: var(--color-text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

/* Base Elements */
a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-primary-hover);
}

/* Forms */
.form-group { margin-bottom: 1.25rem; }
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}
.form-control {
    width: 100%;
    padding: 0.625rem 0.875rem;
    background-color: var(--color-bg-base);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: 0.875rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color var(--transition-speed) ease;
}
.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}
.btn-primary {
    background-color: var(--color-primary);
    color: #ffffff;
    box-shadow: 0 4px 6px -1px var(--color-primary-light);
}
.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-1px);
}
.btn-secondary {
    background-color: var(--color-bg-surface-hover);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}
.btn-secondary:hover {
    background-color: var(--color-border);
}
.btn-icon {
    padding: 0.5rem;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--color-text-secondary);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}
.btn-icon:hover {
    background-color: var(--color-bg-surface-hover);
    color: var(--color-text-primary);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}
.badge-primary { background-color: var(--color-primary-light); color: var(--color-primary); }
.badge-success { background-color: rgba(16, 185, 129, 0.1); color: var(--color-success); }
.badge-warning { background-color: rgba(245, 158, 11, 0.1); color: var(--color-warning); }
.badge-danger { background-color: rgba(239, 68, 68, 0.1); color: var(--color-danger); }
.badge-info { background-color: rgba(99, 102, 241, 0.1); color: rgb(99, 102, 241); }

/* Utilities */
.w-full { width: 100%; }
.mt-lg { margin-top: 2rem; }
.mb-lg { margin-bottom: 2rem; }

.alert {
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    font-size: 0.875rem;
}
.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--color-danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}