/*
Theme Name: Yukie Ueda - LXD Specialist
Theme URI: https://example.com/yukieu
Author: Antigravity
Author URI: https://example.com
Description: A professional, clean, and playful custom WordPress theme for specialists in Education, Technology, and Learning Experience Design.
Version: 1.0.0
Text Domain: yukieu
*/

/* --- Design System Variables --- */
:root {
    --color-primary: #5C5C3D;    /* Sophisticated Olive Khaki */
    --color-secondary: #FFB7C5;  /* Soft Blossom Pink */
    --color-accent: #E08E79;     /* Muted Rose */
    --color-bg: #FDFBF7;         /* High-end Paper White */
    --color-border: #D1CFB9;     /* Structural Line Color */
    --color-text: #4A4A32;       /* Deep Muted Olive */
    --color-text-light: #8B8B7A;
    --radius: 0px;               /* Sharp Architectural Edges */
    --shadow: none;              /* No shadows in Ledger style */
    --border-thick: 2px solid var(--color-primary);
    --border-thin: 1px solid var(--color-border);
    --container-width: 1300px;
    --side-bar-width: 80px;      /* New vertical index width */
}

/* Base Styles */
body {
    font-family: 'Lora', serif;
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.8;
    margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Playfair Display', serif;
    color: var(--color-primary);
    margin-top: 0;
    font-weight: 700;
}

a {
    color: var(--color-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

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

/* Utilities */
.section-padding {
    padding: 100px 0;
}

.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
}