/*
Theme Name: GenTokyo
Theme URI: https://example.com/gentokyo
Author: Antigravity
Author URI: https://example.com
Description: A modern, high-performance Tech Magazine theme for WordPress 2025.
Version: 1.0.0
Requires at least: 6.4
Tested up to: 6.7
Requires PHP: 7.4
License: GPL v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: gentokyo
Tags: news, magazine, technology, modern, responsive, grid-layout, dark-mode
*/

:root {
    /* Typography */
    --font-heading: 'Inter', 'Rubik', sans-serif;
    --font-body: 'Inter', 'Roboto', sans-serif;
    --line-height-body: 1.7;

    /* Colors - Light Mode (Default) */
    --color-bg: #FFFFFF;
    --color-text-primary: #1A1A1A;
    --color-text-secondary: #666666;
    --color-accent: #2563EB;
    /* Default Blue */
    --color-border: #E5E5E5;
    --color-surface: #F8F9FA;

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

    /* Layout */
    --container-width: 1440px;
    --header-height: 80px;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --color-bg: #0D0D0D;
    --color-text-primary: #F5F5F5;
    --color-text-secondary: #B3B3B3;
    --color-accent: #3B82F6;
    /* Lighter Blue */
    --color-border: #333333;
    --color-surface: #1A1A1A;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    line-height: var(--line-height-body);
    transition: background-color 0.3s ease, color 0.3s ease;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

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

a:hover {
    opacity: 0.8;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--border-radius);
}

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

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

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-height);
    display: flex;
    align-items: center;
    transition: background-color 0.3s ease;
}

[data-theme="dark"] .site-header {
    background-color: rgba(13, 13, 13, 0.95);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.site-branding {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    text-transform: uppercase;
    letter-spacing: -0.02em;
}

.main-navigation ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.main-navigation a {
    color: var(--color-text-primary);
    font-weight: 600;
    font-size: 0.95rem;
}

/* Hero Grid */
.hero-section {
    padding: var(--spacing-lg) 0;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-md);
}

.hero-main-card {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    aspect-ratio: 16/9;
}

.hero-main-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: white;
}

.hero-content-overlay h2 {
    color: white;
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.hero-side-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.hero-side-card {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.hero-side-card img {
    width: 120px;
    height: 90px;
    object-fit: cover;
}

/* Latest News */
.latest-news {
    padding: var(--spacing-lg) 0;
}

.section-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    border-left: 4px solid var(--color-accent);
    padding-left: var(--spacing-sm);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.news-card {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-md);
    align-items: start;
}

.news-card-image {
    aspect-ratio: 16/9;
    object-fit: cover;
}

.news-meta {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    font-weight: 600;
}

.cat-tag {
    color: var(--color-accent);
    margin-right: var(--spacing-xs);
}

/* Single Post */
.single-post-header {
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.single-post-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.post-thumbnail-container {
    margin-bottom: var(--spacing-lg);
}

.post-thumbnail-container img {
    width: 100%;
    max-height: 700px;
    object-fit: cover;
}

.entry-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.125rem;
}

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

/* Footer */
.site-footer {
    background-color: #0D0D0D;
    color: #F5F5F5;
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.footer-widget h4 {
    color: white;
    margin-bottom: var(--spacing-md);
}

/* Dark Mode Toggle */
.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-primary);
    padding: var(--spacing-xs);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }

    .hero-side-list {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
    }

    .hero-side-card {
        flex-direction: column;
    }

    .hero-side-card img {
        width: 100%;
        height: auto;
        aspect-ratio: 16/9;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 2rem;
        --spacing-xl: 4rem;
    }

    .header-inner {
        flex-wrap: wrap;
    }

    .main-navigation {
        display: none;
        /* Needs JS toggle */
        width: 100%;
        order: 3;
    }

    .main-navigation.active {
        display: block;
    }

    .main-navigation ul {
        flex-direction: column;
        padding: var(--spacing-md) 0;
    }

    .hero-side-list {
        grid-template-columns: 1fr;
    }

    .news-card {
        grid-template-columns: 1fr;
    }

    .single-post-title {
        font-size: 2rem;
    }
}

/* Sidebar Layout */
.page-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-lg);
    align-items: start;
}

.widget-area {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.widget {
    background: var(--color-surface);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.widget-title {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-accent);
    padding-bottom: 0.5rem;
    display: inline-block;
}

.widget ul {
    list-style: none;
}

.widget ul li {
    margin-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 0.5rem;
}

.widget ul li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

@media (max-width: 1024px) {
    .page-grid {
        grid-template-columns: 1fr;
    }

    .widget-area {
        margin-top: var(--spacing-lg);
    }
}