/* Aleph Null - Base Styles */

:root {
    /* Colors */
    --color-bg: #ffffff;
    --color-bg-secondary: #f0f0f0;
    --color-text: #1a1a1a;
    --color-text-muted: #666;
    --color-accent: #0066cc;
    --color-accent-hover: #0052a3;
    --color-border: #e0e0e0;
    --color-success: #22c55e;
    --color-error: #ef4444;
    --color-warning: #f59e0b;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Layout */
    --max-width: 680px;
    --max-width-wide: 900px;

    /* Transitions */
    --transition: 150ms ease;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.375rem; }
h4 { font-size: 1.125rem; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition);
}

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

code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background-color: var(--color-bg-secondary);
    padding: 0.125em 0.375em;
    border-radius: 4px;
}

pre {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    background-color: var(--color-bg-secondary);
    padding: var(--spacing-md);
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
}

pre code {
    background: none;
    padding: 0;
}

/* Layout */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-lg);
}

.container-wide {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: var(--spacing-lg);
}

/* Components */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-primary {
    background-color: var(--color-accent);
    color: white;
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
}

.btn-secondary {
    background-color: var(--color-bg-secondary);
    color: var(--color-text);
}

.btn-secondary:hover {
    background-color: var(--color-border);
}

.btn-danger {
    background-color: var(--color-error);
    color: white;
}

.btn-danger:hover {
    opacity: 0.9;
}

.btn-success {
    background-color: var(--color-success);
    color: white;
}

.btn-success:hover {
    opacity: 0.9;
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    font-family: inherit;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    background-color: white;
    transition: border-color var(--transition);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* Cards */
.card {
    background-color: white;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.125rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 9999px;
}

.badge-success {
    background-color: #dcfce7;
    color: #166534;
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-error {
    background-color: #fee2e2;
    color: #991b1b;
}

/* Utilities */
.text-muted {
    color: var(--color-text-muted);
}

.text-sm {
    font-size: 0.875rem;
}

.text-center {
    text-align: center;
}

.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.flex {
    display: flex;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }

/* Loading state */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Alert messages */
.alert {
    padding: var(--spacing-md);
    border-radius: 6px;
    margin-bottom: var(--spacing-md);
}

.alert-success {
    background-color: #dcfce7;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.alert-error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-info {
    background-color: #dbeafe;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

/* Responsive */
@media (max-width: 768px) {
    :root {
        --max-width: 100%;
    }

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
}