:root {
    /* Colors - Formal Genshin Inspired */
    --c-primary: #B8860B; /* Dark Goldenrod, more academic */
    --c-primary-glow: rgba(184, 134, 11, 0.3);
    --c-primary-hover: #D4AF37; /* Brighter gold for hover */
    --c-bg-main: #ffffff;
    --c-bg-alt: #f5f7fa;
    --c-bg-darker: #1a1a1a;
    --c-text-main: #222222;
    --c-text-muted: #666666;
    --c-text-light: #ffffff;
    --c-border: #e2e8f0;
    --c-white: #ffffff;
    
    /* Elements Colors */
    --c-anemo: #74C2A8;
    --c-geo: #E3B342;
    --c-electro: #A781CB;
    --c-dendro: #A5C83B;
    --c-hydro: #4CC2F1;
    --c-pyro: #E17757;
    --c-cryo: #9FD6E3;
    
    /* Glassmorphism -> Solid Design */
    --glass-bg: #ffffff;
    --glass-border: #e2e8f0;
    --glass-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --glass-blur: none;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-serif: 'Cinzel', serif;
    
    /* Layout */
    --max-width: 1200px;
    --nav-height: 80px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    background-color: var(--c-bg-main);
    color: var(--c-text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
}

body {
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.2;
}

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

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

button {
    font-family: var(--font-sans);
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

/* Typography Utilities */
.gradient-text {
    color: var(--c-primary);
    /* Removed gradient for formal look */
}

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

.mt-4 { margin-top: 2rem; }

/* Sections */
.section {
    padding: 6rem 0;
    position: relative;
}

.alt-bg {
    background-color: var(--c-bg-alt);
}

.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--c-primary); /* Academic gold for section titles */
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--c-text-muted);
}

/* Dark Theme Overrides */
[data-theme="dark"] {
    --c-bg-main: #121212;
    --c-bg-alt: #1a1a1a;
    --c-bg-darker: #000000;
    --c-text-main: #e0e0e0;
    --c-text-muted: #a0a0a0;
    --c-text-light: #ffffff;
    --c-border: #333333;
    --c-white: #ffffff;
    
    --glass-bg: #1e1e1e;
    --glass-border: #333333;
}

[data-theme="dark"] .logo-img {
    filter: invert(1);
}