/* css/design_system.css */

:root {
    /* Colors - Premium Gold & Dark Theme */
    --color-bg-primary: #0a0a0a;
    /* Ultra Dark */
    --color-bg-secondary: #0f1012;
    /* Slightly Lighter Dark */
    --color-bg-tertiary: #1a1b1e;
    /* Card/Bubble Dark */

    --color-text-primary: #ffffff;
    --color-text-secondary: #a0a0a0;
    --color-text-muted: #666666;

    --color-accent: #d4af37;
    /* Premium Gold */
    --color-accent-hover: #b8860b;
    /* Darker Gold */
    --color-accent-glow: rgba(212, 175, 55, 0.5);

    --color-success: #10b981;
    /* Emerald 500 */
    --color-error: #ef4444;
    /* Red 500 */
    --color-warning: #f59e0b;
    /* Amber 500 */

    /* Typography */
    --font-family-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.5;

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

    /* Borders & Rounding */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-full: 9999px;

    --border-color: #333333;

    /* Shadows & Effects */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.5);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.5), 0 2px 4px -2px rgb(0 0 0 / 0.5);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.5), 0 4px 6px -4px rgb(0 0 0 / 0.5);
    --shadow-glow: 0 0 15px var(--color-accent-glow);

    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
}

/* Base Resets & Global Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

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

a:hover {
    color: var(--color-accent-hover);
    text-shadow: 0 0 8px var(--color-accent-glow);
}

h1,
h2,
h3,
h4 {
    color: var(--color-text-primary);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.025em;
}

/* Utility Classes */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.card {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-md);
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: linear-gradient(135deg, #d4af37 0%, #aa8e28 100%);
    color: #000;
    font-weight: 700;
    border: 1px solid #b8860b;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #e5c15e 0%, #c49f33 100%);
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
}

/* Input Fields */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="url"],
textarea {
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--color-text-primary);
    padding: 0.75rem;
    border-radius: var(--border-radius-md);
    width: 100%;
    transition: border-color var(--transition-fast);
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px var(--color-accent-glow);
}