/* ==========================================
   Cerium Desk - Modern Design System
   ========================================== */

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

:root {
    /* Common Colors */
    --color-primary: hsl(220, 90%, 50%);
    --color-primary-dark: hsl(220, 90%, 40%);
    --color-secondary: hsl(280, 70%, 60%);
    --color-accent: hsl(170, 65%, 45%);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    --gradient-accent: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);

    /* Common Spacing & Styling */
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Light Theme (Default) */
:root,
[data-theme="light"] {
    --color-bg-light: hsl(0, 0%, 98%);
    --color-bg-lighter: hsl(0, 0%, 100%);
    --color-bg-gray: hsl(220, 15%, 95%);

    --color-text-primary: hsl(220, 20%, 15%);
    --color-text-secondary: hsl(220, 10%, 35%);
    --color-text-muted: hsl(220, 5%, 55%);

    /* Additional colors for hash section */
    --surface-color: hsl(220, 15%, 97%);
    --border-color: hsl(220, 15%, 85%);
    --code-bg: hsl(220, 15%, 92%);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 40px rgba(59, 130, 246, 0.2);
}

/* Dark Theme */
[data-theme="dark"] {
    --color-bg-light: hsl(220, 20%, 10%);
    --color-bg-lighter: hsl(220, 20%, 5%);
    --color-bg-gray: hsl(220, 15%, 15%);

    --color-text-primary: hsl(0, 0%, 98%);
    --color-text-secondary: hsl(0, 0%, 70%);
    --color-text-muted: hsl(0, 0%, 50%);

    /* Additional colors for hash section */
    --surface-color: hsl(220, 20%, 12%);
    --border-color: hsl(220, 15%, 25%);
    --code-bg: hsl(220, 20%, 8%);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px rgba(59, 130, 246, 0.3);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--color-bg-light);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* =================== Typography =================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--color-text-primary);
}

h3 {
    font-size: 1.5rem;
    color: var(--color-accent);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
    font-size: 1.125rem;
}

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

section {
    padding: var(--spacing-xl) 0;
    animation: fadeInUp 0.8s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* =================== Header =================== */
header {
    background: #8B1F41;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.2);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo img {
    height: 55px;
    width: auto;
}

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

nav a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: white;
    transition: width var(--transition-normal);
}

nav a:hover {
    color: white;
}

nav a:hover::after {
    width: 100%;
}

/* Theme Toggle Button */
.theme-toggle {
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    color: white;
    margin-left: var(--spacing-sm);
    position: relative;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: scale(1.1);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.theme-icon {
    position: absolute;
    transition: opacity 0.3s ease, transform 0.3s ease;
    opacity: 0;
    transform: scale(0.5) rotate(-90deg);
}

.theme-icon.active {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}

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

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.5;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    margin-bottom: var(--spacing-md);
}

.hero p {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto var(--spacing-md);
}

.subtitle {
    color: var(--color-text-muted);
    font-size: 1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* =================== Buttons =================== */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-secondary {
    background: rgba(0, 0, 0, 0.03);
    color: var(--color-text-primary);
    border: 2px solid rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(0, 0, 0, 0.06);
    border-color: var(--color-primary);
}

/* =================== Download Section =================== */
.download-section {
    background: var(--color-bg-gray);
}

.download-section h2 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.platform-note {
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
}

/* =================== Download Table =================== */
.table-wrapper {
    background: var(--color-bg-lighter);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: var(--shadow-md);
    overflow-x: auto;
}

.download-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
}

.download-table thead {
    background: rgba(59, 130, 246, 0.08);
    border-bottom: 2px solid var(--color-primary);
}

.download-table th {
    padding: var(--spacing-sm) var(--spacing-sm);
    text-align: left;
    font-weight: 600;
    color: var(--color-primary-dark);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.download-table tbody tr {
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    transition: all var(--transition-fast);
}

.download-table tbody tr:hover {
    background: rgba(59, 130, 246, 0.04);
    transform: scale(1.01);
}

.download-table td {
    padding: var(--spacing-sm);
    color: var(--color-text-secondary);
}

.download-table .platform-cell {
    font-weight: 600;
    color: var(--color-text-primary);
}

.download-table .arch-cell {
    color: var(--color-accent);
    font-weight: 500;
}

.download-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.25);
    border-radius: var(--radius-sm);
    color: var(--color-primary-dark);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.download-link:hover {
    background: rgba(59, 130, 246, 0.18);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.download-link::before {
    content: '⬇';
    font-size: 1rem;
}

/* Additional Downloads */
.additional-downloads {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: rgba(170, 75, 255, 0.04);
    border-left: 4px solid var(--color-secondary);
    border-radius: var(--radius-sm);
}

.additional-downloads h3 {
    margin-bottom: var(--spacing-sm);
}

.additional-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

/* Marca el enlace del menú correspondiente a la página o sección actual */
nav a.active {
    color: white;
}
nav a.active::after {
    width: 100%;
}

/* Cabecera reducida para páginas secundarias (verificación, ayuda) */
.page-header {
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-lg) 0 var(--spacing-md);
    text-align: center;
}
.page-header h1 {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    margin-bottom: var(--spacing-xs);
}
.page-header p {
    max-width: 720px;
    margin: 0 auto;
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    line-height: 1.6;
}

/* Tarjeta "Cómo verificar" en la página de verificación */
.hash-howto {
    background: var(--surface-color);
    padding: 1.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    margin-bottom: var(--spacing-md);
}
.hash-howto h3 {
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}
.hash-howto p {
    margin: 0.5rem 0 0.25rem;
    font-size: 0.9rem;
}
.hash-howto code {
    display: block;
    background: var(--code-bg);
    padding: 0.75rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
}
.hash-howto code:last-child {
    margin-bottom: 0;
}
.hash-search-tip {
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    text-align: center;
}
.hash-search-tip kbd {
    background: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    padding: 0.05rem 0.35rem;
    font-family: 'Courier New', monospace;
    font-size: 0.8rem;
}

/* ========== Página de Ayuda al usuario ========== */

.help-toc {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}
.help-toc h2 {
    font-size: 1.1rem;
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
}
.help-toc ol {
    margin: 0;
    padding-left: 1.25rem;
    line-height: 1.9;
}
.help-toc a {
    color: var(--color-primary);
    text-decoration: none;
}
.help-toc a:hover { text-decoration: underline; }

.help-section {
    margin-bottom: var(--spacing-xl);
    scroll-margin-top: 90px; /* compensa el header fijo al saltar a anclas */
}
.help-section > h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-primary);
    display: inline-block;
}
.help-section > p {
    margin: 0.75rem 0;
    line-height: 1.7;
}
.help-section h3 {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: 1.15rem;
}

.help-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}
.help-card {
    background: var(--color-bg-lighter);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-md);
    transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}
.help-card:hover {
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}
.help-card h3 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-size: 1.05rem;
    color: var(--color-primary-dark);
}
.help-card p {
    margin: 0.5rem 0;
    line-height: 1.6;
    font-size: 0.95rem;
}
.help-card ol,
.help-card ul {
    margin: 0.5rem 0;
    padding-left: 1.25rem;
    line-height: 1.7;
    font-size: 0.95rem;
}
.help-card ul ul,
.help-card ol ul {
    margin-top: 0.25rem;
}
.help-card code {
    display: inline-block;
    background: var(--code-bg);
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
}
.help-card > code {
    display: block;
    padding: 0.6rem 0.75rem;
    margin: 0.5rem 0;
    font-size: 0.85rem;
}
.help-card-meta {
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    margin-top: 0.75rem !important;
}

.help-note {
    background: rgba(59, 130, 246, 0.06);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-sm);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
}
.help-note h3 {
    margin-top: 0;
    margin-bottom: 0.75rem;
    color: var(--color-primary-dark);
}
.help-note ul {
    margin: 0.5rem 0 0;
    padding-left: 1.25rem;
    line-height: 1.8;
}

/* <kbd> reutilizable en cualquier página */
kbd {
    background: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    padding: 0.05rem 0.4rem;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    box-shadow: 0 1px 0 var(--border-color);
}

/* Llamada a la verificación desde la página principal */
.verify-cta {
    margin-top: var(--spacing-md);
    text-align: center;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}
.verify-cta a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    margin-left: 0.25rem;
}
.verify-cta a:hover {
    text-decoration: underline;
}

.version-badge {
    display: inline-block;
    margin-left: 0.4rem;
    padding: 0.1rem 0.45rem;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-text-muted);
    background: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 999px;
    vertical-align: middle;
    white-space: nowrap;
}

/* Reservar espacio para evitar layout shift mientras se carga manifest.json */
#downloads-container { min-height: 320px; }
#hashes-container    { min-height: 480px; }

#hashTable th:nth-child(1) { width: 32%; }
#hashTable th:nth-child(2) { width: 10%; }
#hashTable th:nth-child(3) { width: 58%; }
#hashTable td code { font-size: 0.85rem; }
#hashTable td:last-child code { font-size: 0.75rem; word-break: break-all; }

.manifest-error {
    color: hsl(0, 70%, 45%);
}

.download-notification {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--gradient-primary);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-weight: 600;
    z-index: 10000;
    animation: slideInUp 0.3s ease;
}
.download-notification.is-leaving {
    animation: slideOutDown 0.3s ease;
}
@keyframes slideInUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes slideOutDown {
    from { opacity: 1; transform: translateY(0); }
    to   { opacity: 0; transform: translateY(20px); }
}

/* =================== Footer =================== */
footer {
    background: var(--color-bg-lighter);
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    padding: var(--spacing-md) 0;
    text-align: center;
}

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

footer a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* =================== Responsive Design =================== */
@media (max-width: 768px) {
    nav ul {
        gap: var(--spacing-sm);
    }

    section {
        padding: var(--spacing-lg) 0;
    }

    .table-wrapper {
        padding: var(--spacing-sm);
    }

    .download-table {
        font-size: 0.875rem;
    }

    .download-table th,
    .download-table td {
        padding: var(--spacing-xs) var(--spacing-xs);
    }

    .additional-links {
        flex-direction: column;
    }
}

/* =================== Utility Classes =================== */
.text-center {
    text-align: center;
}

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

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