/* Design Tokens */
:root {
    /* Colors */
    --color-text: #111;
    --color-text-muted: #666;
    --color-text-subtle: #777;
    --color-text-hover: #333;
    --color-bg-dark: #222;
    --color-bg-light: #fff;
    --color-border: #ccc;
    --color-border-light: #ddd;
    
    /* Spacing */
    --spacing-xs: 2px;
    --spacing-sm: 4px;
    --spacing-md: 6px;
    --spacing-base: 8px;
    --spacing-gap: 12px;
    --spacing-md-lg: 16px;
    --spacing-lg: 20px;
    --spacing-xl: 24px;
    --spacing-xxl: 32px;
    --spacing-xxxl: 40px;
    --spacing-huge: 48px;
    --spacing-nav-top: 60px;
    
    /* Typography */
    --font-size-xs: 12px;
    --font-size-sm: 13px;
    --font-size-base: 15px;
    --font-size-title: 36px;
    --line-height-tight: 16px;
    --line-height-base: 18px;
    --line-height-loose: 20px;
    --letter-spacing-subtle: 0.1px;
    
    /* Layout */
    --container-narrow: 700px;
    --container-wide: 1140px;
    --container-nav: 1400px;
    --container-nav-wide: 1600px;
    --column-width: 200px;
    --header-offset: -4px;
    
    /* Component-specific */
    --underline-offset: 3px;
}

/* Global Reset (Minimal) */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Body Typography */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: var(--font-size-sm);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background: var(--color-bg-light);
    font-weight: normal;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
    font-weight: normal;
    font-size: var(--font-size-base);
    color: var(--color-text);
}

/* Container */
.container {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md-lg);
}

.home-container {
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md-lg);
}

/* Navigation */
.nav {
    width: 100%;
    background: var(--color-bg-light);
    padding: var(--spacing-huge) 0 0 0;
}

.nav-container {
    max-width: var(--container-nav-wide);
    margin: 0 auto;
    padding: var(--spacing-gap) var(--spacing-xxl) var(--spacing-xxl) var(--spacing-xxl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    border-bottom: 1px solid var(--color-text);
    min-height: var(--spacing-nav-top);
}

.nav-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.nav-links a {
    color: var(--color-text);
    text-decoration: none;
    font-size: var(--font-size-sm);
    line-height: var(--line-height-base);
}

.nav-links a:hover {
    text-decoration: underline;
}

.nav-links a.active {
    font-weight: bold;
}

.nav-title {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    font-family: "Ballet", cursive;
    font-optical-sizing: auto;
    font-weight: 400;
    font-style: normal;
    font-size: clamp(32px, 5vw, 56px);
    color: var(--color-text);
    white-space: nowrap;
    display: flex;
    align-items: center;
}

.nav-title a {
    color: var(--color-text);
    text-decoration: none;
}

.nav-title a:hover {
    text-decoration: none;
}

/* Links */
a {
    color: var(--color-text);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Main Content */
main {
    padding: var(--spacing-gap) 0;
}

/* Footer */
.site-footer {
    text-align: center;
    padding: var(--spacing-xl) 0;
    font-size: calc(var(--font-size-sm) * .8);
    line-height: var(--line-height-base);
    color: var(--color-text-muted);
}

/* Home Page - Compact Multi-column Layout */
.home-columns {
    column-width: var(--column-width);
    column-gap: var(--spacing-xxl);
    column-fill: balanced;
    margin-top: 0;
}

.category-block {
    margin: 0;
    break-inside: avoid;
}

.category-header {
    margin: 0 0 var(--spacing-md) 0;
    line-height: var(--line-height-tight);
}

.category-header a,
.category-header .category-header-text {
    display: block;
    background: var(--color-bg-dark);
    color: var(--color-bg-light);
    padding: var(--spacing-xs) 0 var(--spacing-xs) var(--spacing-sm);
    margin-left: var(--header-offset);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-tight);
    text-decoration: none;
}

.category-header a:hover {
    text-decoration: underline;
}

.game-list {
    list-style: none;
    margin-bottom: var(--spacing-xxl);
    padding: 0;
}

.game-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: var(--spacing-xs) 0 var(--spacing-base) 0;
    gap: var(--spacing-gap);
    line-height: var(--line-height-tight);
}

.game-left a {
    text-decoration: none;
    color: var(--color-text);
    display: block;
}

.game-right {
    display: flex;
    gap: var(--spacing-gap);
    white-space: nowrap;
}

.game-action {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-decoration: none;
}

.game-action:hover,
.game-left a:hover,
.game-row:has(.game-action:hover) .game-left a {
    text-decoration: underline;
}

/* Page Titles */
.page-title {
    font-size: var(--font-size-base);
    font-weight: bold;
    margin-bottom: var(--spacing-md-lg);
    color: var(--color-text);
}

/* Detail Pages */
.game-detail {
    width: 100%;
}

/* Game Header - Grid Layout */
.game-header {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: flex-start;
    gap: var(--spacing-lg) var(--spacing-xxl);
}

/* Breadcrumb */
.game-header-breadcrumb {
    font-size: var(--font-size-sm);
    color: var(--color-text-subtle);
    margin-bottom: var(--spacing-gap);
    letter-spacing: var(--letter-spacing-subtle);
    line-height: 1.4;
}

.game-header-breadcrumb a {
    color: var(--color-text-subtle);
    text-decoration: none;
}

.game-header-breadcrumb a:hover {
    color: var(--color-text-hover);
    text-decoration: underline;
}

/* Title */
.game-header h1.game-header-title,
h1.game-header-title {
    font-size: var(--font-size-title);
    font-weight: 700;
    line-height: 1.25;
    margin: 0.43em 0 0.15em 0;
    color: var(--color-text);
}

/* Subtitle (short description line) */
.game-header-subtitle {
    font-size: var(--font-size-base);
    font-style: italic;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-gap);
    line-height: 1.45;
}

/* Tags */
.game-header-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm) var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.game-header-tag {
    font-size: var(--font-size-sm);
    color: var(--color-text);
    text-decoration: underline dotted;
    text-underline-offset: var(--underline-offset);
    cursor: pointer;
    transition: text-decoration-style 0.15s ease;
}

.game-header-tag:hover {
    text-decoration-style: solid;
    color: var(--color-text);
}

/* Game header actions container */
.game-header-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-gap);
    align-items: flex-start;
}

/* Primary action buttons */
.play-button,
.edit-button {
    display: inline-block;
    padding: var(--spacing-gap) var(--spacing-lg);
    border: 1px solid var(--color-text);
    box-sizing: border-box;
    text-decoration: none;
    color: var(--color-text);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-base);
    background: var(--color-bg-light);
    transition: all 0.15s ease;
    white-space: nowrap;
    width: 100%;
    text-align: center;
}

.play-button:hover,
.edit-button:hover {
    background: var(--color-text);
    color: var(--color-bg-light);
    text-decoration: none;
}

/* Divider under header */
.detail-divider {
    margin-top: var(--spacing-md-lg);
    margin-bottom: var(--spacing-xl);
    border: none;
    border-top: 1px solid var(--color-border-light);
}

/* Breadcrumb */
.breadcrumb {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-gap);
}

.breadcrumb a {
    color: var(--color-text-muted);
    text-decoration: none;
}

.breadcrumb a:hover {
    color: var(--color-text);
    text-decoration: underline;
}

.long-description {
    margin-bottom: var(--spacing-huge);
    line-height: var(--line-height-loose);
}

.long-description p {
    margin-bottom: var(--spacing-md-lg);
    color: var(--color-text);
}

.long-description h2 {
    font-size: var(--font-size-base);
    font-weight: bold;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-gap);
    color: var(--color-text);
}

.long-description h3 {
    font-size: var(--font-size-base);
    font-weight: bold;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-base);
    color: var(--color-text);
}

.long-description ul, .long-description ol {
    margin-bottom: var(--spacing-md-lg);
    padding-left: var(--spacing-lg);
}

.long-description li {
    margin-bottom: var(--spacing-md);
}

.long-description strong {
    font-weight: bold;
    color: var(--color-text);
}

.long-description blockquote {
    margin: var(--spacing-lg) 0;
    padding-left: var(--spacing-lg);
    border-left: 2px solid var(--color-border-light);
    color: var(--color-text-muted);
    font-style: italic;
}

.long-description a {
    font-size: var(--font-size-sm);
    color: var(--color-text);
    text-decoration: underline dotted;
    text-underline-offset: var(--underline-offset);
    transition: text-decoration-style 0.15s ease;
}

.long-description a:hover {
    text-decoration-style: solid;
    color: var(--color-text);
}

/* Screenshots */
.screenshots {
    margin-top: var(--spacing-xxl);
}

.screenshots figure {
    margin-bottom: var(--spacing-xl);
}

.screenshots img {
    max-width: 100%;
    height: auto;
    display: block;
}

.screenshots figcaption {
    margin-top: var(--spacing-gap);
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
    font-style: italic;
}

/* Form Styles */
.submit-form {
    margin-top: var(--spacing-xl);
}

.form-group {
    margin-bottom: var(--spacing-md-lg);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    line-height: var(--line-height-base);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-base) var(--spacing-gap);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-base);
    font-family: inherit;
    color: var(--color-text);
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: 0;
    box-sizing: border-box;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-text);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.form-submit {
    padding: var(--spacing-base) var(--spacing-md-lg);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-base);
    font-family: inherit;
    color: var(--color-bg-light);
    background: var(--color-text);
    border: 1px solid var(--color-text);
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

.form-submit:hover {
    background: var(--color-bg-dark);
    border-color: var(--color-bg-dark);
    text-decoration: none;
}

.form-submit:focus {
    outline: 2px solid var(--color-text);
    outline-offset: 2px;
}

.form-error {
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    line-height: var(--line-height-base);
}

.form-error ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.form-error li {
    margin: 0;
}

/* Messages */
.messages {
    margin-top: var(--spacing-md-lg);
    margin-bottom: var(--spacing-md-lg);
}

.message {
    padding: var(--spacing-gap);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-base);
    margin-bottom: var(--spacing-gap);
    border: 1px solid var(--color-border);
}

.message-success {
    background: var(--color-bg-light);
    color: var(--color-text);
    border-color: var(--color-text);
}

.message-error {
    background: var(--color-bg-light);
    color: var(--color-text);
    border-color: var(--color-text);
}

/* Responsive - Natural column collapse */
@media (max-width: 1696px) {
    .nav {
        padding: var(--spacing-huge) var(--spacing-xxl) 0 var(--spacing-xxl);
    }
    
    .nav-container {
        padding: var(--spacing-gap) var(--spacing-xxl) var(--spacing-xxxl) var(--spacing-xxl);
        max-width: var(--container-nav);
    }
}


@media (max-width: 768px) {
    .nav {
        padding: var(--spacing-xxl) var(--spacing-xl) 0 var(--spacing-xl);
    }
    
    .nav-container {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md-lg);
        padding: 0 0 var(--spacing-md-lg) 0;
        max-width: none;
    }
    
    /* Game detail responsive */
    .game-header {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .game-header-actions {
        width: 100%;
        align-items: stretch;
    }
    
    .game-header > a.play-button,
    .game-header-actions .play-button,
    .game-header-actions .edit-button {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .nav {
        padding: var(--spacing-xxl) var(--spacing-md-lg) 0 var(--spacing-md-lg);
    }
    
    .nav-container {
        padding: 0 0 var(--spacing-md-lg) 0;
        flex-direction: row;
        justify-content: space-between;
    }
    
    .nav-title {
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
        font-size: clamp(24px, 6vw, 48px);
        margin: 0;
        width: auto;
        text-align: center;
        white-space: nowrap;
    }
    
    .container {
        padding: var(--spacing-xl) var(--spacing-xl);
    }
    
    main {
        padding: var(--spacing-xl) 0;
    }
    
    /* Game detail responsive */
    .game-header {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .game-header-actions {
        width: 40%;
        margin: 0 auto;
        align-items: stretch;
    }
    
    .game-header > a.play-button,
    .game-header-actions .play-button,
    .game-header-actions .edit-button {
        width: 100%;
        text-align: center;
    }
    
}