/* 
 * Download Proxy - Plain CSS Styles
 * Modern, responsive design without Tailwind
 */

/* ===== CSS VARIABLES (Design Tokens) ===== */
:root {
    /* Colors */
    --color-primary: #3b82f6;
    --color-primary-hover: #2563eb;
    --color-bg: #ffffff;
    --color-bg-card: #ffffff;
    --color-bg-muted: #f8fafc;
    --color-text: #1e293b;
    --color-text-muted: #64748b;
    --color-border: #e2e8f0;
    --color-success: #22c55e;
    --color-success-bg: #dcfce7;
    --color-error: #ef4444;
    --color-error-bg: #fee2e2;
    --color-warning-bg: #fef3c7;
    --color-warning: #d97706;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);

    /* Font */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* Dark Mode */
.dark {
    --color-primary: #60a5fa;
    --color-primary-hover: #3b82f6;
    --color-bg: #0f172a;
    --color-bg-card: #1e293b;
    --color-bg-muted: #334155;
    --color-text: #f1f5f9;
    --color-text-muted: #94a3b8;
    --color-border: #334155;
    --color-success-bg: #14532d;
    --color-error-bg: #450a0a;
    --color-warning-bg: #451a03;
}

/* ===== BASE STYLES ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* ===== LAYOUT ===== */
.main-content {
    flex: 1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container-sm {
    max-width: 768px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* ===== HEADER ===== */
.site-header {
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-bg);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-md);
}

.logo-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo-icon {
    color: var(--color-primary);
    width: 24px;
    height: 24px;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
}

/* ===== FOOTER ===== */
.site-footer {
    border-top: 1px solid var(--color-border);
    padding: var(--space-xl) 0;
    margin-top: auto;
    text-align: center;
}

.footer-text {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.footer-link {
    color: var(--color-primary);
}

.footer-link:hover {
    text-decoration: underline;
}

/* ===== PAGE SECTIONS ===== */
.page-content {
    min-height: 600px;
    padding-bottom: var(--space-2xl);
}

.header-section {
    background: linear-gradient(to bottom, var(--color-bg-muted), var(--color-bg));
    padding: var(--space-2xl) var(--space-md) var(--space-xl);
    text-align: center;
}

.page-subtitle {
    color: var(--color-text-muted);
    font-weight: 500;
    margin-bottom: var(--space-md);
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    max-width: 800px;
    margin: 0 auto var(--space-lg);
    word-break: break-word;
}

@media (min-width: 768px) {
    .page-title {
        font-size: 1.875rem;
    }
}

/* ===== CARDS ===== */
.card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.info-card {
    max-width: 400px;
    margin: 0 auto;
    padding: var(--space-lg);
}

.info-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    color: var(--color-text-muted);
    font-size: 0.875rem;
    margin-bottom: var(--space-sm);
}

.info-item:last-child {
    margin-bottom: 0;
}

.info-value {
    font-weight: 600;
    color: var(--color-text);
}

/* ===== TABLE SECTION ===== */
.table-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.table-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    background: linear-gradient(to right, #334155, #1e293b);
    color: #fff;
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.table-body {
    border: 1px solid var(--color-border);
    border-top: none;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    background-color: var(--color-bg-card);
    overflow: hidden;
}

/* Column Headers (Hidden on mobile, shown on desktop) */
.table-columns {
    display: none;
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--space-md);
    padding: var(--space-md);
    background-color: var(--color-bg-muted);
    border-bottom: 1px solid var(--color-border);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-align: center;
}

@media (min-width: 768px) {
    .table-columns {
        display: grid;
    }
}

/* ===== HOST ROWS ===== */
.host-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-border);
    transition: background-color 0.15s ease;
}

.host-row:last-child {
    border-bottom: none;
}

.host-row:hover {
    background-color: var(--color-bg-muted);
}

@media (min-width: 768px) {
    .host-row {
        grid-template-columns: 1fr 1fr 1fr;
        align-items: center;
    }
}

/* Host Cell */
.host-cell {
    display: flex;
    justify-content: center;
    align-items: center;
}

.host-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #000;
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
    min-width: 120px;
    height: 40px;
}

.host-logo {
    max-height: 32px;
    max-width: 100px;
    object-fit: contain;
}

.host-name {
    color: #fff;
    font-weight: 700;
    font-size: 0.875rem;
}

/* Download Cell */
.download-cell {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Status Cell */
.status-cell {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #fff;
}

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

.btn-outline {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    color: var(--color-text);
}

.btn-outline:hover {
    background-color: var(--color-bg-muted);
}

/* ===== STATUS BADGES ===== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
}

.badge-success {
    background-color: var(--color-success-bg);
    color: var(--color-success);
}

.dark .badge-success {
    color: #4ade80;
}

.badge-error {
    background-color: var(--color-error-bg);
    color: var(--color-error);
}

.dark .badge-error {
    color: #f87171;
}

.badge-processing {
    background-color: var(--color-warning-bg);
    color: var(--color-warning);
}

.dark .badge-processing {
    color: #fbbf24;
}

/* ===== HOME PAGE STYLES ===== */

/* Hero Section */
.hero-icon-wrapper {
    display: inline-flex;
    padding: var(--space-lg);
    border-radius: 1rem;
    background-color: rgba(59, 130, 246, 0.1);
    margin-bottom: var(--space-lg);
}

.hero-icon {
    width: 40px;
    height: 40px;
    color: var(--color-primary);
}

.hero-title {
    font-size: 1.875rem;
    font-weight: 700;
    max-width: 800px;
    margin: 0 auto var(--space-md);
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
}

/* Search Form */
.search-form {
    max-width: 500px;
    margin: 0 auto;
}

.search-wrapper {
    display: flex;
    gap: var(--space-sm);
    flex-direction: column;
}

@media (min-width: 480px) {
    .search-wrapper {
        flex-direction: row;
    }
}

.search-input {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background-color: var(--color-bg-card);
    color: var(--color-text);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.search-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

.search-btn {
    padding: var(--space-sm) var(--space-lg);
    white-space: nowrap;
}

/* Features Section */
.features-section {
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--space-2xl) var(--space-md);
}

.features-grid {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
}

.feature-icon {
    display: inline-flex;
    padding: var(--space-sm);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-md);
}

.feature-icon-green {
    background-color: #d1fae5;
    color: #059669;
}

.dark .feature-icon-green {
    background-color: rgba(16, 185, 129, 0.2);
    color: #34d399;
}

.feature-icon-blue {
    background-color: #dbeafe;
    color: #2563eb;
}

.dark .feature-icon-blue {
    background-color: rgba(59, 130, 246, 0.2);
    color: #60a5fa;
}

.feature-icon-purple {
    background-color: #ede9fe;
    color: #7c3aed;
}

.dark .feature-icon-purple {
    background-color: rgba(139, 92, 246, 0.2);
    color: #a78bfa;
}

.feature-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.feature-description {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* How It Works Section */
.how-it-works-section {
    max-width: 700px;
    margin: 0 auto;
    padding: 0 var(--space-md) var(--space-2xl);
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-xl);
}

.steps-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.step-item {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
}

.step-number {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background-color: var(--color-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
}

.step-content {
    flex: 1;
}

.step-title {
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.step-description {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.code-inline {
    padding: 0.125rem 0.5rem;
    background-color: var(--color-bg-muted);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-family: monospace;
}

/* ===== EMPTY STATES ===== */
.empty-state {
    padding: var(--space-2xl);
    text-align: center;
}

.empty-icon {
    width: 48px;
    height: 48px;
    color: var(--color-text-muted);
    margin: 0 auto var(--space-md);
}

.empty-title {
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.empty-description {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* ===== NOT FOUND PAGE ===== */
.not-found {
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-xl);
}

.not-found-icon {
    width: 64px;
    height: 64px;
    color: var(--color-text-muted);
    margin: 0 auto var(--space-md);
}

.not-found-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.not-found-description {
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

/* ===== ANIMATIONS ===== */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.animate-spin {
    animation: spin 1s linear infinite;
}

/* ===== UTILITY CLASSES ===== */
.text-muted {
    color: var(--color-text-muted);
}

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

.text-sm {
    font-size: 0.875rem;
}

.text-error {
    color: var(--color-error);
}

.mt-md {
    margin-top: var(--space-md);
}

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

.mb-md {
    margin-bottom: var(--space-md);
}

.mb-lg {
    margin-bottom: var(--space-lg);
}

/* ===== MULTILINK FILE LIST ===== */
.file-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-border);
    transition: background-color 0.15s ease;
}

.file-row:last-child {
    border-bottom: none;
}

.file-row:hover {
    background-color: var(--color-bg-muted);
}

@media (min-width: 768px) {
    .file-row {
        grid-template-columns: 1fr auto auto;
        align-items: center;
    }
}

.file-name {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 500;
    word-break: break-word;
}

.file-name-icon {
    color: var(--color-primary);
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.file-size {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.file-actions {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
}

@media (max-width: 767px) {
    .file-size {
        font-size: 0.75rem;
        margin-top: var(--space-xs);
    }

    .file-actions {
        margin-top: var(--space-sm);
    }
}

/* ===== MULTILINK HEADER BADGE ===== */
.collection-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-muted);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.collection-icon {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

/* Copy All Button */
.copy-all-wrapper {
    margin-top: var(--space-lg);
}

/* ===== TOAST NOTIFICATION ===== */
.toast {
    position: fixed;
    bottom: var(--space-md);
    right: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 500;
    z-index: 50;
    transition: opacity 0.3s ease;
}

.toast-success {
    background-color: var(--color-success);
}

/* ===== DESKTOP TABLE COLUMNS FOR MULTILINK ===== */
.table-columns-multilink {
    display: none;
    grid-template-columns: 1fr auto auto;
    gap: var(--space-md);
    padding: var(--space-md);
    background-color: var(--color-bg-muted);
    border-bottom: 1px solid var(--color-border);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

.table-columns-multilink>*:first-child {
    text-align: left;
}

.table-columns-multilink>*:not(:first-child) {
    text-align: center;
}

@media (min-width: 768px) {
    .table-columns-multilink {
        display: grid;
    }
}