/* Fonts: Playfair Display for Headings (Deluxe feel), Inter for Body (Readability) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500&family=Playfair+Display:ital,wght@0,600;0,700;1,600&display=swap');

:root {
    /* Core Colors - Deluxe Light Palette */
    --color-bg-body: #fdfbf7;
    /* Warm Cream/Alabaster - More premium than pure white */
    --color-bg-card: #ffffff;
    /* Pure White */
    --color-text-main: #1c1917;
    /* Warm Black (Stone 900) */
    --color-text-muted: #57534e;
    /* Warm Grey (Stone 500) */
    --color-border: #e7e5e4;
    /* Soft Stone border */

    /* Premium Accents */
    --color-gold-main: #d4af37;
    /* Classic Metallic Gold */
    --color-gold-light: #f3e5ab;
    /* Champagne */
    --color-header-bg: rgba(253, 251, 247, 0.9);
    /* High opacity cream for glass effect */

    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;

    /* Spacing & Layout */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Brand Colors - Sophisticated Deep Tones */
:root {
    --color-accent-main: #1e3a8a;
    /* Deep Royal Blue (Main) */
    --color-accent-glow: rgba(30, 58, 138, 0.15);
}

/* Deu Theme - Elegant Burgundy */
[data-theme="deu"] {
    --color-accent-main: #991b1b;
    /* Deep Burgundy Red */
    --color-accent-secondary: #b45309;
    /* Deep Gold/Ochre */
    --color-accent-glow: rgba(153, 27, 27, 0.15);
}

/* Trade Theme - Deep Emerald */
[data-theme="trade"] {
    --color-accent-main: #065f46;
    /* Deep Emerald Green */
    --color-accent-glow: rgba(6, 95, 70, 0.15);
}

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

body {
    background-color: var(--color-bg-body);
    color: var(--color-text-main);
    font-family: var(--font-sans);
    line-height: 1.7;
    /* Increased for airy, premium feel */
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--color-text-main);
    letter-spacing: -0.02em;
}

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

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

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    /* Wider gutters */
}

.section {
    padding: var(--spacing-xl) 0;
}

/* Premium Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    background-color: var(--color-accent-main);
    color: white;
    border-radius: 2px;
    /* Sharper corners for luxury feel */
    font-weight: 500;
    font-family: var(--font-sans);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-size: 0.85rem;
    transition: all var(--transition-medium);
    border: 1px solid var(--color-accent-main);
    cursor: pointer;
    box-shadow: 0 4px 6px -1px var(--color-accent-glow);
}

.btn:hover {
    background-color: transparent;
    color: var(--color-accent-main);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px var(--color-accent-glow);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-text-main);
    border: 1px solid var(--color-border);
}

.btn-outline:hover {
    border-color: var(--color-accent-main);
    color: var(--color-accent-main);
}

/* Deluxe Cards */
.card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    /* Minimal radius */
    padding: var(--spacing-md);
    transition: all var(--transition-medium);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    /* Very subtle base shadow */
    position: relative;
    overflow: hidden;
}

/* Add a gold top border on hover for that "deluxe" touch */
.card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-gold-light), var(--color-gold-main));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-medium);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05);
    border-color: transparent;
}

.card:hover::after {
    transform: scaleX(1);
}

/* Header/Nav - Glassmorphism */
.header {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--color-header-bg);
    transition: all var(--transition-medium);
}

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

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    /* Bold serif */
    font-size: 1.75rem;
    letter-spacing: -0.03em;
    color: var(--color-text-main);
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-muted);
    position: relative;
    padding-bottom: 2px;
}

.nav-links a:hover {
    color: var(--color-accent-main);
}

/* Underline effect for nav links */
.nav-links a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-gold-main);
    transition: width var(--transition-medium);
}

.nav-links a:hover::before {
    width: 100%;
}

/* Special styling for subdomain link to make it distinct but elegant */
.nav-subdomain {
    padding: 0.25rem 0.75rem;
    background-color: rgba(0, 0, 0, 0.03);
    border-radius: 99px;
    font-size: 0.85rem !important;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
}