/*
 * Asistente de dibujo (cuadrícula) - Landing Page Styles
 * Copyright © 2025 ByKaizenES
 */

/* ========================================
   VARIABLES
   ======================================== */
:root {
    /* Colors - Palette azul noche */
    --bg-primary: #0D1117;
    --bg-secondary: #161B22;
    --bg-card: #1C2128;
    --accent-blue: #58A6FF;
    --accent-light: #79C0FF;
    --accent-bright: #A5D8FF;
    --neon-blue: #00D4FF;
    --text-primary: #F0F6FC;
    --text-secondary: #8B949E;
    --border: #30363D;
    
    /* Shadows */
    --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px rgba(88, 166, 255, 0.3);
    --shadow-neon: 0 0 30px rgba(0, 212, 255, 0.4);
    
    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   HEADER
   ======================================== */
.header {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    padding: 80px 20px;
    text-align: center;
    border-bottom: 2px solid var(--border);
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(90deg, transparent, transparent 49px, var(--border) 49px, var(--border) 50px),
        repeating-linear-gradient(0deg, transparent, transparent 49px, var(--border) 49px, var(--border) 50px);
    opacity: 0.1;
    pointer-events: none;
}

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

.logo {
    width: 120px;
    height: 120px;
    margin-bottom: 20px;
    border-radius: 24px;
    box-shadow: var(--shadow-glow);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--neon-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(88, 166, 255, 0.5);
}

.subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn-primary {
    display: inline-block;
    padding: 15px 40px;
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--neon-blue) 100%);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 600;
    border-radius: 8px;
    box-shadow: var(--shadow-neon);
    transition: var(--transition-smooth);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(0, 212, 255, 0.6);
}

.btn-donate {
    display: inline-block;
    padding: 12px 30px;
    background: #0070BA;
    color: white;
    text-decoration: none;
    font-weight: 600;
    border-radius: 6px;
    transition: var(--transition-smooth);
    margin-top: 15px;
}

.btn-donate:hover {
    background: #005EA6;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 112, 186, 0.4);
}

/* ========================================
   SECTIONS
   ======================================== */
section {
    padding: 80px 20px;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 30px;
    text-align: center;
    color: var(--accent-light);
}

.icon-section {
    color: var(--neon-blue);
    margin-right: 10px;
    font-size: 2.5rem;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.icon-feature {
    color: var(--accent-blue);
    margin-right: 8px;
    font-size: 1.5rem;
}

/* ========================================
   DESCRIPTION SECTION
   ========================================== */
.description-section {
    background: var(--bg-secondary);
}

.description-content {
    max-width: 900px;
    margin: 0 auto;
}

.description-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-primary);
    margin-bottom: 30px;
    text-align: justify;
}

.screenshot-container {
    margin: 50px 0;
    text-align: center;
}

.screenshot {
    width: 100%;
    max-width: 800px;
    border-radius: 12px;
    border: 2px solid var(--border);
    box-shadow: var(--shadow-medium);
    transition: var(--transition-smooth);
}

.screenshot:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-glow);
    border-color: var(--accent-blue);
}

.screenshot-caption {
    margin-top: 15px;
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-style: italic;
}

.feature-title {
    font-size: 1.8rem;
    color: var(--accent-blue);
    margin-top: 40px;
    margin-bottom: 20px;
}

.feature-list {
    list-style: none;
    padding-left: 0;
    margin-bottom: 30px;
}

.feature-list li {
    padding: 12px 0 12px 30px;
    position: relative;
    font-size: 1.05rem;
    line-height: 1.7;
    text-align: justify;
}

.feature-list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--neon-blue);
    font-size: 1.2rem;
}

.steps-list {
    counter-reset: step-counter;
    list-style: none;
    padding-left: 0;
    margin-bottom: 30px;
}

.steps-list li {
    counter-increment: step-counter;
    padding: 15px 0 15px 50px;
    position: relative;
    font-size: 1.05rem;
    line-height: 1.7;
    text-align: justify;
}

.steps-list li::before {
    content: counter(step-counter);
    position: absolute;
    left: 0;
    top: 12px;
    width: 32px;
    height: 32px;
    background: var(--accent-blue);
    color: var(--bg-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    box-shadow: var(--shadow-glow);
}

/* ========================================
   SUPPORT SECTION
   ======================================== */
.support-section {
    background: var(--bg-primary);
}

.support-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.support-text {
    font-size: 1.2rem;
    margin-bottom: 40px;
    color: var(--text-secondary);
    text-align: center;
}

.support-card {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 16px;
    border: 2px solid var(--border);
    box-shadow: var(--shadow-medium);
}

.coffee-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.support-card h3 {
    font-size: 2rem;
    color: var(--accent-blue);
    margin-bottom: 15px;
}

.support-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
    text-align: justify;
}

/* ========================================
   SOCIAL SECTION
   ======================================== */
.social-section {
    background: var(--bg-secondary);
}

.social-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.social-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-smooth);
    gap: 10px;
}

.social-link:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow);
}

.social-link svg {
    transition: var(--transition-smooth);
}

.social-link.twitter:hover {
    border-color: #1DA1F2;
}

.social-link.twitter:hover svg {
    color: #1DA1F2;
}

.social-link.instagram:hover {
    border-color: #E4405F;
}

.social-link.instagram:hover svg {
    color: #E4405F;
}

.social-link.youtube:hover {
    border-color: #FF0000;
}

.social-link.youtube:hover svg {
    color: #FF0000;
}

.social-link.github:hover {
    border-color: var(--accent-light);
}

.social-link.github:hover svg {
    color: var(--accent-light);
}

.social-link span {
    font-weight: 600;
    font-size: 1.1rem;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--bg-primary);
    padding: 40px 20px;
    text-align: center;
    border-top: 2px solid var(--border);
}

.footer p {
    color: var(--text-secondary);
    margin: 5px 0;
}

.footer-note {
    color: var(--accent-blue);
    font-size: 0.95rem;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .title {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .feature-title {
        font-size: 1.5rem;
    }
    
    .social-links {
        grid-template-columns: 1fr;
    }
    
    section {
        padding: 60px 20px;
    }
    
    .support-card {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 2rem;
    }
    
    .logo {
        width: 100px;
        height: 100px;
    }
    
    .header {
        padding: 60px 20px;
    }
}