/* ========================================
   LA COMPUTADORA DE DIOS - Stylesheet
   Terminal limpia, blanca y vectorial
   ======================================== */

:root {
    --color-bg: #ffffff;
    --color-text: #000000;
    --color-gray-light: #f5f5f5;
    --color-gray-medium: #e0e0e0;
    --color-gray-dark: #666666;
    --color-accent: #000000;
    --font-mono: 'Courier New', 'Courier', monospace;
    --spacing-unit: 1rem;
    --border-radius: 4px;
    --transition-speed: 0.3s;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-mono);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    font-size: 14px;
    overflow-x: hidden;
    position: relative;
}

/* ========================================
   Patrón de Fondo Vectorial
   ======================================== */

.background-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.03;
    pointer-events: none;
    background-image:
        linear-gradient(0deg, transparent 24%, rgba(0, 0, 0, .05) 25%, rgba(0, 0, 0, .05) 26%, transparent 27%, transparent 74%, rgba(0, 0, 0, .05) 75%, rgba(0, 0, 0, .05) 76%, transparent 77%, transparent),
        linear-gradient(90deg, transparent 24%, rgba(0, 0, 0, .05) 25%, rgba(0, 0, 0, .05) 26%, transparent 27%, transparent 74%, rgba(0, 0, 0, .05) 75%, rgba(0, 0, 0, .05) 76%, transparent 77%, transparent);
    background-size: 50px 50px;
}

/* ========================================
   Container
   ======================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ========================================
   Terminal Header
   ======================================== */

.terminal-header {
    background-color: var(--color-bg);
    border-bottom: 2px solid var(--color-text);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.logo-link {
    text-decoration: none;
    color: inherit;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.terminal-prompt {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
}

/* Navigation */
.main-nav {
    flex: 1;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-list a {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.9rem;
    transition: opacity var(--transition-speed);
    position: relative;
}

.nav-list a:hover {
    opacity: 0.7;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-text);
    transition: width var(--transition-speed);
}

.nav-list a:hover::after {
    width: 100%;
}

.nav-cta {
    background-color: var(--color-text);
    color: var(--color-bg) !important;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    opacity: 0.8 !important;
}

/* Social Icons */
.social-icons {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.social-link {
    color: var(--color-text);
    transition: transform var(--transition-speed), opacity var(--transition-speed);
    display: flex;
    align-items: center;
}

.social-link:hover {
    transform: translateY(-2px);
    opacity: 0.7;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    transition: all var(--transition-speed);
}

.prompt-symbol {
    color: var(--color-text);
    font-weight: bold;
}

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

.cursor {
    display: inline-block;
    width: 8px;
    height: 1.2rem;
    background-color: var(--color-text);
    animation: blink 1s infinite;
    margin-left: 2px;
}

@keyframes blink {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

/* ========================================
   Sections
   ======================================== */

.section {
    padding: 4rem 0;
}

.alt-section {
    background-color: var(--color-gray-light);
}

.section-title {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-title.centered {
    justify-content: center;
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    padding: 4rem 0;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.terminal-window {
    border: 2px solid var(--color-text);
    border-radius: var(--border-radius);
    background-color: var(--color-bg);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.terminal-header-bar {
    background-color: var(--color-gray-light);
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--color-text);
    display: flex;
    gap: 0.5rem;
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--color-text);
    background-color: var(--color-bg);
}

.terminal-content {
    padding: 2rem;
}

.ascii-art {
    font-size: 0.85rem;
    line-height: 1.4;
    margin-bottom: 1.5rem;
    overflow-x: auto;
}

.terminal-text {
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.terminal-text.small {
    font-size: 0.85rem;
}

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

.comment {
    color: var(--color-gray-dark);
    font-style: italic;
}

.highlight {
    background-color: var(--color-text);
    color: var(--color-bg);
    padding: 0.1rem 0.3rem;
    font-weight: bold;
}

/* ========================================
   Code Block
   ======================================== */

.code-block {
    border: 2px solid var(--color-text);
    border-radius: var(--border-radius);
    background-color: var(--color-bg);
    overflow: hidden;
    margin: 2rem 0;
}

.code-header {
    background-color: var(--color-gray-light);
    padding: 0.5rem 1rem;
    border-bottom: 1px solid var(--color-text);
    font-size: 0.85rem;
}

.code-content {
    padding: 1.5rem;
    overflow-x: auto;
    font-size: 0.9rem;
    line-height: 1.6;
}

.line-number {
    color: var(--color-gray-dark);
    user-select: none;
    margin-right: 1rem;
}

.keyword {
    font-weight: bold;
}

.class-name {
    font-weight: bold;
}

.string {
    color: var(--color-gray-dark);
}

.boolean,
.null {
    font-style: italic;
}

.function {
    text-decoration: underline;
}

/* ========================================
   OS Grid (Sistemas Operativos)
   ======================================== */

.os-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.os-card {
    border: 2px solid var(--color-text);
    border-radius: var(--border-radius);
    padding: 2rem;
    background-color: var(--color-bg);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    position: relative;
}

.os-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.os-card.highlighted {
    background-color: var(--color-gray-light);
    border-width: 3px;
}

.os-icon {
    margin-bottom: 1rem;
    color: var(--color-text);
}

.os-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.highlight-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background-color: var(--color-text);
    color: var(--color-bg);
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    border-radius: var(--border-radius);
}

.os-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.card-arrow {
    position: absolute;
    bottom: 1.5rem;
    right: 1.5rem;
    font-size: 1.5rem;
    opacity: 0;
    transform: translateX(-10px);
    transition: opacity var(--transition-speed), transform var(--transition-speed);
}

.os-card-link:hover .card-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* ========================================
   Concept Box (Logos)
   ======================================== */

.concept-box {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.logo-diagram {
    margin: 2rem 0;
    display: flex;
    justify-content: center;
}

.logo-diagram svg {
    color: var(--color-text);
}

/* ========================================
   Two Column Layout
   ======================================== */

.two-column {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.info-box {
    border: 2px solid var(--color-text);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    background-color: var(--color-bg);
}

.info-box h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--color-text);
    padding-bottom: 0.5rem;
}

.terminal-list {
    list-style: none;
}

.terminal-list li {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.bullet {
    flex-shrink: 0;
}

/* ========================================
   Products Grid
   ======================================== */

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.product-card {
    border: 2px solid var(--color-text);
    border-radius: var(--border-radius);
    padding: 2rem;
    background-color: var(--color-bg);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    position: relative;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.product-card.highlighted {
    background-color: var(--color-gray-light);
    border-width: 3px;
}

.product-header {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.product-header svg {
    color: var(--color-text);
}

.product-header h3 {
    font-size: 1.2rem;
    margin: 0.5rem 0;
    line-height: 1.3;
}

.product-description {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--color-gray-dark);
    flex-grow: 1;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0.5rem 0;
}

.feature-tag {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--color-text);
    border-radius: var(--border-radius);
    background-color: var(--color-bg);
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-gray-medium);
}

.product-price {
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--color-text);
}

.buy-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background-color: var(--color-text);
    color: var(--color-bg);
    border: none;
    border-radius: var(--border-radius);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.buy-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.buy-button:active {
    transform: translateY(0);
}

.section-subtitle {
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 3rem;
}

/* ========================================
   Free Library Resources
   ======================================== */

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.resource-card {
    border: 2px solid var(--color-text);
    border-radius: var(--border-radius);
    padding: 2rem;
    background-color: var(--color-bg);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.resource-icon {
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.resource-card h3 {
    font-size: 1.2rem;
    margin: 0.5rem 0;
}

.resource-description {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--color-gray-dark);
    flex-grow: 1;
}

.resource-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background-color: var(--color-text);
    color: var(--color-bg);
    border: none;
    border-radius: var(--border-radius);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    margin-top: 0.5rem;
}

.resource-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.resource-button:active {
    transform: translateY(0);
}

.articles-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 900px;
}

.article-card {
    border: 2px solid var(--color-text);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    background-color: var(--color-bg);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.article-card:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.article-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
}

.article-tag {
    font-size: 0.7rem;
    padding: 0.25rem 0.5rem;
    background-color: var(--color-text);
    color: var(--color-bg);
    border-radius: var(--border-radius);
    font-weight: bold;
}

.article-header h3 {
    font-size: 1.1rem;
    margin: 0;
    flex: 1;
}

.article-meta {
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--color-gray-dark);
}

/* ========================================
   CTA Section
   ======================================== */

.cta-section {
    background-color: var(--color-bg);
    padding: 4rem 0;
}

.cta-box {
    max-width: 700px;
    margin: 0 auto;
    border: 3px solid var(--color-text);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.15);
}

.cta-content {
    padding: 3rem 2rem;
    background-color: var(--color-bg);
}

.cta-title {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.cta-features {
    margin: 2rem 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.feature {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border: 1px solid var(--color-gray-medium);
    border-radius: var(--border-radius);
    transition: background-color var(--transition-speed);
}

.feature:hover {
    background-color: var(--color-gray-light);
}

.feature svg {
    flex-shrink: 0;
}

.cta-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 1.25rem 2rem;
    background-color: var(--color-text);
    color: var(--color-bg);
    border: none;
    border-radius: var(--border-radius);
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    margin-top: 2rem;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

.cta-button:active {
    transform: translateY(0);
}

.button-arrow {
    font-size: 1.2rem;
    transition: transform var(--transition-speed);
}

.cta-button:hover .button-arrow {
    transform: translateX(5px);
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background-color: var(--color-gray-light);
    border-top: 2px solid var(--color-text);
    padding: 3rem 0;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 3rem;
    align-items: start;
}

.footer-main {
    max-width: 400px;
}

.footer-nav {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-nav a {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.85rem;
    transition: opacity var(--transition-speed);
}

.footer-nav a:hover {
    opacity: 0.7;
}

.footer-social {
    text-align: right;
}

/* ========================================
   Animations
   ======================================== */

.fade-in {
    animation: fadeIn 1s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.typing-effect {
    overflow: hidden;
    border-right: 2px solid var(--color-text);
    white-space: nowrap;
    animation: typing 2s steps(30) 1s 1 normal both;
}

@keyframes typing {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    .section {
        padding: 2rem 0;
    }

    .hero {
        min-height: auto;
        padding: 2rem 0;
    }

    .terminal-content {
        padding: 1rem;
    }

    .ascii-art {
        font-size: 0.6rem;
    }

    .section-title {
        font-size: 1.2rem;
    }

    .cta-title {
        font-size: 1.3rem;
        flex-direction: column;
    }

    .os-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .products-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .product-card {
        padding: 1.5rem;
    }

    .product-footer {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }

    .buy-button {
        width: 100%;
        justify-content: center;
    }

    .resources-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .resource-card {
        padding: 1.5rem;
    }

    .articles-list {
        gap: 1rem;
    }

    .article-card {
        padding: 1rem;
    }

    .article-title {
        font-size: 1.8rem;
    }

    .article-subtitle {
        font-size: 1rem;
    }

    .article-meta-info {
        flex-direction: column;
        gap: 0.5rem;
    }

    .content-section h2 {
        font-size: 1.4rem;
    }

    .content-section h3 {
        font-size: 1.1rem;
    }

    .two-column {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .code-content {
        font-size: 0.75rem;
    }

    /* Header y Navegación Mobile */
    .header-content {
        flex-direction: column;
        align-items: stretch;
    }

    .main-nav {
        order: 3;
        width: 100%;
    }

    .nav-list {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
        display: none;
    }

    .nav-list.active {
        display: flex;
    }

    .social-icons {
        order: 2;
        justify-content: center;
    }

    .menu-toggle {
        display: flex;
        align-self: flex-end;
        position: absolute;
        top: 1.5rem;
        right: 1rem;
    }

    .logo-link {
        order: 1;
    }

    /* Footer Mobile */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .footer-main {
        max-width: 100%;
    }

    .footer-nav {
        align-items: center;
    }

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

    .footer-social .social-icons {
        justify-content: center;
    }
}

/* ========================================
   Article Pages
   ======================================== */

.article-hero {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.article-category {
    display: inline-block;
    background-color: var(--color-text);
    color: var(--color-bg);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.article-title {
    font-size: 2.5rem;
    line-height: 1.2;
    margin: 1rem 0;
}

.article-subtitle {
    font-size: 1.2rem;
    line-height: 1.6;
    color: var(--color-gray-dark);
    margin: 1.5rem 0;
}

.article-meta-info {
    display: flex;
    gap: 2rem;
    justify-content: center;
    margin: 1.5rem 0;
    font-size: 0.9rem;
    color: var(--color-gray-dark);
}

.pdf-download-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background-color: var(--color-text);
    color: var(--color-bg);
    border: none;
    border-radius: var(--border-radius);
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    margin-top: 1.5rem;
}

.pdf-download-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

.pdf-download-button svg {
    stroke: currentColor;
}

.article-content {
    padding: 4rem 0;
}

.article-body {
    max-width: 800px;
    margin: 0 auto;
}

.content-section {
    margin: 3rem 0;
}

.content-section h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.content-section h3 {
    font-size: 1.3rem;
    margin: 2rem 0 1rem 0;
}

.content-section h4 {
    font-size: 1.1rem;
    margin: 1.5rem 0 0.75rem 0;
}

.content-section p {
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.content-section ol,
.content-section ul:not(.terminal-list) {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.content-section li {
    margin-bottom: 0.75rem;
    line-height: 1.8;
}

.content-section a {
    color: var(--color-text);
    text-decoration: underline;
    font-weight: bold;
}

.content-section a:hover {
    opacity: 0.7;
}

/* ========================================
   Utility Classes
   ======================================== */

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

.mt-1 { margin-top: var(--spacing-unit); }
.mt-2 { margin-top: calc(var(--spacing-unit) * 2); }
.mb-1 { margin-bottom: var(--spacing-unit); }
.mb-2 { margin-bottom: calc(var(--spacing-unit) * 2); }