/* ===================================
   EasyDL - Dark Carnival Theme
   Main Stylesheet
   =================================== */

/* === CSS Variables === */
:root {
    /* Color Palette */
    --color-primary: #2d1b3d;
    --color-secondary: #8b0000;
    --color-accent: #d4af37;
    --color-background: #0a0a0a;
    --color-surface: #1a1a1a;
    --color-text: #e0e0e0;
    --color-text-muted: #a0a0a0;
    --color-border: #333333;
    
    /* Typography */
    --font-display: 'Creepster', cursive;
    --font-accent: 'Special Elite', cursive;
    --font-body: 'Roboto', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Breakpoints */
    --breakpoint-mobile: 768px;
    --breakpoint-tablet: 1024px;
    --breakpoint-desktop: 1440px;
    
    /* Effects */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(212, 175, 55, 0.3);
    --shadow-glow-red: 0 0 20px rgba(139, 0, 0, 0.5);
}

/* === Reset & Base Styles === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
    background-image: 
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 10px,
            rgba(45, 27, 61, 0.05) 10px,
            rgba(45, 27, 61, 0.05) 20px
        );
    min-height: 100vh;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    color: var(--color-accent);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }

p {
    margin-bottom: var(--spacing-sm);
}

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

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

/* === Container === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* === Header === */
.site-header {
    background-color: var(--color-primary);
    border-bottom: 3px solid var(--color-accent);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.site-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-xs);
    color: var(--color-accent);
}

.site-subtitle {
    font-family: var(--font-accent);
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
}

.main-nav {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.nav-link {
    font-family: var(--font-accent);
    padding: var(--spacing-xs) var(--spacing-md);
    border: 2px solid transparent;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.nav-link:hover {
    border-color: var(--color-accent);
    background-color: rgba(212, 175, 55, 0.1);
}

.nav-link.active {
    border-color: var(--color-accent);
    background-color: rgba(212, 175, 55, 0.2);
}

/* === Hero Section === */
.hero-section {
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.hero-description {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* === Download Form === */
.download-form {
    max-width: 600px;
    margin: 0 auto;
}

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

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    background-color: var(--color-surface);
    border: 2px solid var(--color-accent);
    border-radius: 4px;
    color: var(--color-text);
    font-size: 1rem;
    font-family: var(--font-body);
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: var(--shadow-glow-red);
}

.form-input::placeholder {
    color: var(--color-text-muted);
}

/* === Format Selector === */
.format-selector {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.format-group {
    display: flex;
    gap: var(--spacing-sm);
    flex: 1;
}

.format-label {
    flex: 1;
    cursor: pointer;
}

.format-label input[type="radio"] {
    display: none;
}

.format-option {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: 4px;
    text-align: center;
    transition: all 0.3s ease;
    font-weight: bold;
}

.format-label input[type="radio"]:checked + .format-option {
    background-color: var(--color-primary);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow);
}

.format-option:hover {
    border-color: var(--color-accent);
}

.quality-selector {
    flex: 1;
}

.quality-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-surface);
    border: 2px solid var(--color-accent);
    border-radius: 4px;
    color: var(--color-text);
    font-size: 1rem;
    font-family: var(--font-body);
    cursor: pointer;
    transition: all 0.3s ease;
}

.quality-select:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: var(--shadow-glow-red);
}

/* === Buttons === */
.btn-download {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border: 2px solid var(--color-accent);
    border-radius: 4px;
    color: var(--color-accent);
    font-size: 1.2rem;
    font-weight: bold;
    font-family: var(--font-accent);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    clip-path: polygon(
        0 0, 
        calc(100% - 10px) 0, 
        100% 10px, 
        100% 100%, 
        10px 100%, 
        0 calc(100% - 10px)
    );
}

.btn-download:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-glow);
}

.btn-download:active {
    transform: scale(0.98);
}

.btn-download .btn-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--color-accent);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* === Download Result === */
.download-result {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: 4px;
    border: 2px solid;
}

.download-result.success {
    background-color: rgba(0, 128, 0, 0.1);
    border-color: #00ff00;
    color: #00ff00;
}

.download-result.error {
    background-color: rgba(139, 0, 0, 0.2);
    border-color: var(--color-secondary);
    color: #ff6666;
}

/* === Sections === */
.features-section,
.files-section,
.tools-section,
.extension-section,
.tool-section,
.content-section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.section-description {
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* === Features Grid === */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.feature-card {
    background-color: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: 8px;
    padding: var(--spacing-lg);
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.feature-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--color-text-muted);
}

/* === Files List === */
.files-list {
    max-width: 800px;
    margin: 0 auto;
}

.empty-state {
    text-align: center;
    color: var(--color-text-muted);
    padding: var(--spacing-xl);
    font-style: italic;
}

.file-item {
    background-color: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: 4px;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.file-item:hover {
    border-color: var(--color-accent);
}

.file-info {
    flex: 1;
}

.file-name {
    font-weight: bold;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.file-meta {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.file-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-file {
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: transparent;
    border: 2px solid var(--color-accent);
    border-radius: 4px;
    color: var(--color-accent);
    font-family: var(--font-body);
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-file:hover {
    background-color: var(--color-accent);
    color: var(--color-background);
}

.btn-delete {
    border-color: var(--color-secondary);
    color: var(--color-secondary);
}

.btn-delete:hover {
    background-color: var(--color-secondary);
    color: var(--color-text);
}

/* === Tools Grid === */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.tool-card {
    background-color: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: 8px;
    padding: var(--spacing-lg);
    text-align: center;
    transition: all 0.3s ease;
    display: block;
}

.tool-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.tool-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.tool-title {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent);
}

.tool-description {
    color: var(--color-text-muted);
}

/* === Extension Section === */
.extension-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: var(--spacing-sm) 0;
    color: var(--color-text);
    font-size: 1.1rem;
}

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

.btn-extension {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border: 2px solid var(--color-accent);
    border-radius: 4px;
    color: var(--color-accent);
    font-size: 1.2rem;
    font-weight: bold;
    font-family: var(--font-accent);
    transition: all 0.3s ease;
}

.btn-extension:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

.extension-note {
    margin-top: var(--spacing-md);
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* === Tool Sections === */
.tool-section {
    border-top: 2px solid var(--color-border);
    padding: var(--spacing-xl) 0;
}

.tool-header {
    margin-bottom: var(--spacing-lg);
}

.tool-form {
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

.tool-result {
    margin-top: var(--spacing-lg);
}

/* === Privacy Page === */
.page-title {
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.page-intro {
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
}

.privacy-content {
    max-width: 800px;
    margin: 0 auto;
}

.privacy-section {
    margin-bottom: var(--spacing-xl);
}

.privacy-heading {
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.privacy-list {
    list-style: none;
    padding-left: var(--spacing-md);
}

.privacy-list li {
    margin-bottom: var(--spacing-sm);
    position: relative;
    padding-left: var(--spacing-md);
}

.privacy-list li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

/* === Footer === */
.site-footer {
    background-color: var(--color-primary);
    border-top: 3px solid var(--color-accent);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.footer-description {
    font-family: var(--font-accent);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.footer-heading {
    color: var(--color-accent);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: var(--color-text);
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* === Responsive Design === */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.5rem; }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .format-selector {
        flex-direction: column;
    }
    
    .features-grid,
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .file-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .file-actions {
        width: 100%;
        justify-content: flex-end;
    }
}

/* === Accessibility === */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
a:focus,
button:focus,
input:focus,
select:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Screen reader only content */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}