/* =========================================
   Reset & Variables
   ========================================= */
:root {
    --bg-color: #06090f;        /* Very dark navy / almost black */
    --surface-color: #111827;   /* Charcoal gray */
    --surface-hover: #1f2937;   /* Lighter charcoal for hover */
    --accent-color: #0ea5e9;    /* Electric Blue */
    --accent-glow: rgba(14, 165, 233, 0.3); /* Blue glow */
    --text-primary: #f9fafb;    /* Off-white */
    --text-secondary: #9ca3af;  /* Gray */
    --border-color: rgba(255, 255, 255, 0.08);
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

.glow {
    text-shadow: 0 0 20px var(--accent-glow);
}

/* =========================================
   Navbar
   ========================================= */
.navbar {
    padding: 24px 0;
    position: relative;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
    background: rgba(6, 9, 15, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.5px;
}

.logo i {
    font-size: 1.5rem;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}

.nav-btn:hover {
    background: var(--surface-color);
    border-color: var(--text-secondary);
}

/* =========================================
   Buttons
   ========================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--accent-color);
    color: #fff;
    box-shadow: 0 4px 14px 0 var(--accent-glow);
    border: 1px solid transparent;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--accent-glow);
    background-color: #0284c7; /* Darker blue */
}

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

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

/* =========================================
   Hero Section
   ========================================= */
.hero {
    position: relative;
    padding: 100px 0 120px;
    text-align: center;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, rgba(6, 9, 15, 0) 70%);
    z-index: -1;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(14, 165, 233, 0.1);
    color: var(--accent-color);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 24px;
    border: 1px solid rgba(14, 165, 233, 0.2);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -1px;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* =========================================
   Features
   ========================================= */
.features {
    padding: 80px 0;
    background-color: var(--bg-color);
}

.section-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 48px;
    letter-spacing: -0.5px;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.feature-card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(14, 165, 233, 0.3);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

.feature-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(14, 165, 233, 0.1);
    color: var(--accent-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* =========================================
   How it Works
   ========================================= */
.how-it-works {
    padding: 80px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(180deg, rgba(17, 24, 39, 0) 0%, rgba(17, 24, 39, 0.5) 100%);
}

.steps-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    margin-top: 60px;
}

.step {
    flex: 1;
    text-align: center;
    position: relative;
}

.step-number {
    width: 64px;
    height: 64px;
    background-color: var(--surface-color);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin: 0 auto 20px;
    z-index: 2;
    position: relative;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
    transition: var(--transition);
}

.step:hover .step-number {
    border-color: var(--accent-color);
    box-shadow: 0 0 20px var(--accent-glow);
}

.step-content h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.step-connector {
    color: var(--border-color);
    font-size: 2rem;
    align-self: flex-start;
    margin-top: 16px;
}

/* =========================================
   Tech Section
   ========================================= */
.tech-section {
    padding: 100px 0;
}

.tech-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.tech-info p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.tech-info strong {
    color: var(--text-primary);
}

.tech-list {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.tech-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
}

.tech-list li i {
    color: var(--accent-color);
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

/* Code Window Simulation */
.tech-code {
    width: 100%;
}

.code-window {
    background-color: #0d1117;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.7);
}

.window-header {
    background-color: #161b22;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.red { background-color: #ff5f56; }
.yellow { background-color: #ffbd2e; }
.green { background-color: #27c93f; }

.window-title {
    margin-left: auto;
    margin-right: auto;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-family: 'Inter', sans-serif;
}

.window-content {
    padding: 24px;
    overflow-x: auto;
}

.window-content pre {
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    color: #e6edf3;
}

/* Syntax Highlighting */
.kwd { color: #ff7b72; }
.str { color: #a5d6ff; }
.func { color: #d2a8ff; }
.dec { color: #d2a8ff; }
.comment { color: #8b949e; font-style: italic; }

/* =========================================
   Footer
   ========================================= */
.footer {
    background-color: #04060a;
    border-top: 1px solid var(--border-color);
    padding-top: 60px;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 16px;
    max-width: 300px;
}

.footer-links h4 {
    margin-bottom: 16px;
    font-size: 1.1rem;
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--text-secondary);
}

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

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding: 24px 0;
}

.bottom-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.bottom-flex p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.accent-link {
    color: var(--accent-color);
    font-weight: 500;
}

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

/* =========================================
   Download Section
   ========================================= */
.download-section {
    padding: 80px 0;
    background-color: var(--surface-color);
    border-top: 1px solid var(--border-color);
}

.download-card {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    max-width: 700px;
    margin: 0 auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    transition: var(--transition);
}

.download-card:hover {
    border-color: rgba(14, 165, 233, 0.3);
    box-shadow: 0 10px 40px -10px var(--accent-glow);
}

.download-header {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 30px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.download-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-md);
    object-fit: contain;
    background-color: white; /* Ajustado al icono */
    padding: 5px;
}

.download-title h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.download-version {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.download-body {
    text-align: center;
    margin-bottom: 40px;
}

.download-btn {
    width: 100%;
    max-width: 300px;
    padding: 16px 24px;
    font-size: 1.1rem;
}

.download-hashes {
    background: rgba(17, 24, 39, 0.8);
    padding: 20px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.download-hashes h4 {
    margin-bottom: 8px;
    font-size: 1.05rem;
    color: var(--text-primary);
}

.download-hashes p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.hash-block {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 10px;
    font-family: 'Fira Code', monospace;
    font-size: 0.85rem;
    align-items: center;
}

.hash-block:last-child {
    margin-bottom: 0;
}

.hash-label {
    color: var(--accent-color);
    font-weight: 600;
    min-width: 60px;
}

.hash-value {
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.05);
    padding: 4px 8px;
    border-radius: 4px;
    word-break: break-all;
    flex: 1;
}

/* =========================================
   Responsive
   ========================================= */
@media (max-width: 900px) {
    .container {
        padding: 0 20px;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 60px 0 80px;
    }

    .hero-title {
        font-size: 2.5rem;
    }
    
    .steps-container {
        flex-direction: column;
        align-items: center;
        gap: 40px;
    }
    
    .step-connector {
        transform: rotate(90deg);
        align-self: center;
        margin-top: 0;
    }
    
    .tech-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .bottom-flex {
        flex-direction: column;
        text-align: center;
    }

    .download-card {
        padding: 24px;
    }

    .download-header {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    
    .hash-block {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
}

@media (max-width: 480px) {
    .nav-container {
        flex-direction: column;
        gap: 16px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-actions {
        flex-direction: column;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .tech-list {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
}