/* Teenage Engineering Inspired Stylesheet */
/* Based on https://teenage.engineering/store design language */

:root {
    /* Typography - Clean, modern sans-serif */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    
    /* TE Color Palette */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f8f8;
    --bg-accent: #000000;
    
    --text-primary: #000000;
    --text-secondary: #666666;
    --text-muted: #999999;
    --text-inverse: #ffffff;
    
    /* TE Accent Colors */
    --accent-primary: #ff0066;
    --accent-secondary: #ff3366;
    --accent-muted: #666666;
    --accent-subtle: #f0f0f0;
    
    /* Interactive Elements */
    --button-primary: #000000;
    --button-secondary: #f0f0f0;
    --button-hover: #333333;
    --button-active: #000000;
    
    /* Borders and Dividers */
    --border-light: #e0e0e0;
    --border-medium: #cccccc;
    --border-dark: #000000;
    
    /* Shadows */
    --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.15);
    
    /* Spacing Scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
}

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

body {
    font-family: var(--font-family);
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-primary);
    min-height: 100vh;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* General link styles */
a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s ease, text-decoration 0.2s ease;
}

a:hover {
    color: var(--accent-primary);
    text-decoration: underline;
}

/* Header - Clean, minimal TE style */
header {
    padding: var(--space-xl) 0;
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-primary);
    
    .logo {
        margin-bottom: var(--space-lg);
        margin-left: var(--space-xl);
        font-size: 2.5rem;
        font-weight: 600;
        letter-spacing: -0.02em;
    }
    
    nav {
        margin-bottom: 0;
        padding: 0 var(--space-xl);
        display: flex;
        align-items: center;
        gap: var(--space-2xl);
    }
    
    a {
        text-decoration: none;
        color: var(--text-primary);
        font-size: 0.9rem;
        font-weight: 500;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        transition: color 0.2s ease;
        
        &:hover {
            color: var(--accent-primary);
        }
    }
}

/* Logo styles - TE inspired typography */
.logo {
    display: inline-flex;
    align-items: baseline;
    gap: var(--space-sm);
    font-family: var(--font-family);
    font-weight: 600;
    line-height: 1;
    letter-spacing: -0.02em;
    font-size: 2.5rem;
}

.logo-404 {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.logo-shirt {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1rem;
}

.logo-not {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: 0.1em;
}

.logo-found {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1rem;
}

/* Logo hover effects - TE style */
header a:hover {
    .logo-shirt,
    .logo-found {
        color: var(--accent-primary);
        transition: color 0.2s ease;
    }
    
    .logo-404 {
        color: var(--accent-primary);
        transition: color 0.2s ease;
    }
    
    .logo-not {
        color: var(--accent-primary);
        transition: color 0.2s ease;
    }
}

/* Navigation - TE minimal style */
nav a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.2s ease;
    
    &:hover {
        color: var(--accent-primary);
    }
    
    &.active {
        font-weight: 600;
        color: var(--accent-primary);
    }
}

/* Main content - TE grid system */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-2xl);
}

/* Gallery - TE product grid */
.filters {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--space-sm) var(--space-lg);
    text-decoration: none;
    color: var(--text-primary);
    background: transparent;
    border: 1px solid var(--border-medium);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.2s ease;
    
    &:hover {
        color: var(--accent-primary);
        border-color: var(--accent-primary);
        background: var(--accent-subtle);
    }
    
    &.active {
        color: var(--text-inverse);
        background: var(--button-primary);
        border-color: var(--button-primary);
    }
}

/* Shirt Grid - TE product card style */
.shirt-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-2xl);
    margin-bottom: var(--space-3xl);
}

.shirt-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    overflow: hidden;
    
    &:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-medium);
        border-color: var(--accent-primary);
    }
    
    a {
        text-decoration: none;
        color: inherit;
        display: flex;
        flex-direction: column;
        height: 100%;
    }
    
    img {
        width: 100%;
        height: 240px;
        object-fit: cover;
        display: block;
        background: var(--bg-secondary);
        
        /* Placeholder styling for external images */
        &[src*="kagi.com"] {
            opacity: 0.8;
            filter: grayscale(10%);
        }
    }
    
    h3 {
        padding: var(--space-lg) var(--space-lg) var(--space-sm);
        font-size: 1.1rem;
        font-weight: 600;
        color: var(--text-primary);
        line-height: 1.3;
    }
}

.shirt-description {
    padding: 0 var(--space-lg) var(--space-sm);
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.4;
}

.shirt-categories {
    padding: 0 var(--space-lg) var(--space-lg);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    justify-content: flex-end;
    margin-top: auto;
}

.category-chip {
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: none;
    border: none;
    padding: 0;
}

.purchase-info {
    padding: 0 var(--space-lg) var(--space-lg);
    margin-top: auto;
    padding-top: var(--space-sm);
}

/* Purchase Links - TE button style */
.purchase-link {
    display: inline-block;
    color: var(--text-primary);
    padding: var(--space-sm) var(--space-lg);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid var(--border-medium);
    background: transparent;
    transition: all 0.2s ease;
    
    &:hover {
        color: var(--accent-primary);
        border-color: var(--accent-primary);
        background: var(--accent-subtle);
    }
}

/* Individual shirt pages - TE clean layout */
.shirt-detail {
    max-width: 800px;
    margin: 0 auto;
    
    h1 {
        font-size: 2.5rem;
        font-weight: 600;
        margin-bottom: var(--space-lg);
        color: var(--text-primary);
        letter-spacing: -0.02em;
    }
    
    img {
        width: 100%;
        max-width: 500px;
        height: auto;
        margin: var(--space-lg) 0;
        border: 1px solid var(--border-light);
    }
    
    h2 {
        margin-top: var(--space-2xl);
        margin-bottom: var(--space-lg);
        color: var(--text-primary);
        font-size: 1.5rem;
        font-weight: 600;
    }
    
    p {
        margin-bottom: var(--space-lg);
        color: var(--text-secondary);
        line-height: 1.6;
    }
}

/* Individual Shirt Page Styles - TE inspired */
.shirt-page {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-2xl);
}

.shirt-image-container {
    display: flex;
    justify-content: center;
    margin-bottom: var(--space-lg);
}

.shirt-image-link {
    display: block;
    text-decoration: none;
    transition: opacity 0.2s;
    
    &:hover {
        opacity: 0.9;
    }
}

.shirt-main-image {
    max-width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: contain;
    margin: var(--space-lg) 0;
    display: block;
    border: 1px solid var(--border-light);
}

.purchase-section {
    text-align: center;
    margin: var(--space-2xl) 0;
}

.purchase-button {
    display: inline-block;
    padding: var(--space-lg) var(--space-2xl);
    background: var(--button-primary);
    color: var(--text-inverse);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid var(--button-primary);
    transition: all 0.2s ease;
    
    &:hover {
        background: var(--accent-primary);
        border-color: var(--accent-primary);
    }
    
    &:focus {
        outline: 2px solid var(--accent-primary);
        outline-offset: 2px;
    }
}

.shirt-title-row {
    display: flex;
    align-items: baseline;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin-bottom: var(--space-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.shirt-content {
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
    text-align: left;
}

.shirt-title-row h2 {
    margin: 0;
    flex-shrink: 0;
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.shirt-body {
    margin-top: var(--space-lg);
}

.shirt-content h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.shirt-content h2:first-of-type {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.shirt-content h2,
.shirt-content h3 {
    font-weight: 600;
    color: var(--text-primary);
}

.shirt-content h2 {
    font-size: 1.5rem;
    margin: var(--space-2xl) 0 var(--space-lg) 0;
}

.shirt-content h3 {
    font-size: 1.25rem;
    margin: var(--space-xl) 0 var(--space-md) 0;
}

.shirt-content p {
    margin-bottom: var(--space-lg);
    color: var(--text-secondary);
}

.shirt-content ul,
.shirt-content ol {
    margin: var(--space-lg) 0;
    padding-left: var(--space-2xl);
}

.shirt-content li {
    margin-bottom: var(--space-sm);
    color: var(--text-secondary);
}

.shirt-content strong {
    font-weight: 600;
    color: var(--text-primary);
}

.shirt-content hr {
    border: none;
    height: 1px;
    background: var(--border-light);
    margin: var(--space-2xl) 0;
}

.shirt-content img {
    max-width: 100%;
    height: auto;
    margin: var(--space-lg) 0;
    border: 1px solid var(--border-light);
}

/* Footer - TE minimal style */
footer {
    color: var(--text-muted);
    text-align: right;
    padding: var(--space-2xl);
    margin-top: var(--space-3xl);
    font-size: 0.7rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: 0;
    border-top: 1px solid var(--border-light);
}

.disclaimer {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-bottom: 0;
    line-height: 1.4;
}

/* Responsive design - TE mobile approach */
@media (max-width: 768px) {
    header {
        padding: var(--space-lg) 0;
        
        .logo {
            margin-left: var(--space-lg);
            font-size: 2rem;
        }
        
        nav {
            padding: 0 var(--space-lg);
            gap: var(--space-lg);
        }
    }
    
    main {
        padding: var(--space-lg);
    }
    
    .filters {
        gap: var(--space-sm);
        margin-bottom: var(--space-2xl);
    }
    
    .filter-btn {
        padding: var(--space-sm) var(--space-md);
        font-size: 0.7rem;
    }
    
    .shirt-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: var(--space-lg);
    }
    
    .shirt-page {
        padding: var(--space-lg);
    }
    
    .shirt-content h1 {
        font-size: 2rem;
    }
    
    .shirt-title-row {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }
    
    .shirt-title-row h2 {
        font-size: 2rem;
    }
    
    .shirt-content h2 {
        font-size: 1.25rem;
    }
    
    .shirt-content h3 {
        font-size: 1.1rem;
    }
    
    .shirt-main-image {
        max-height: 300px;
    }
}

/* TE Typography Enhancements */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.2;
}

/* TE Button Variants */
.btn-primary {
    background: var(--button-primary);
    color: var(--text-inverse);
    border: 1px solid var(--button-primary);
    
    &:hover {
        background: var(--accent-primary);
        border-color: var(--accent-primary);
    }
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
    
    &:hover {
        color: var(--accent-primary);
        border-color: var(--accent-primary);
        background: var(--accent-subtle);
    }
}

/* TE Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-mono { font-family: var(--font-mono); }
.font-bold { font-weight: 600; }
.font-medium { font-weight: 500; }

.text-xs { font-size: 0.7rem; }
.text-sm { font-size: 0.8rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.1rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 2rem; }

.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-primary { color: var(--text-primary); }

.border { border: 1px solid var(--border-light); }
.border-t { border-top: 1px solid var(--border-light); }
.border-b { border-bottom: 1px solid var(--border-light); }

.p-0 { padding: 0; }
.p-1 { padding: var(--space-xs); }
.p-2 { padding: var(--space-sm); }
.p-3 { padding: var(--space-md); }
.p-4 { padding: var(--space-lg); }
.p-5 { padding: var(--space-xl); }

.m-0 { margin: 0; }
.m-1 { margin: var(--space-xs); }
.m-2 { margin: var(--space-sm); }
.m-3 { margin: var(--space-md); }
.m-4 { margin: var(--space-lg); }
.m-5 { margin: var(--space-xl); }