/* PropTech AI - Common Styles Shared Across All Pages */

/* =====================================================
   RESET & BASE STYLES
   ===================================================== */

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

:root {
    /* Green-First Color System */
    --primary: #059669;
    --primary-light: #10b981;
    --primary-medium: #047857;
    --primary-dark: #064e3b;
    --secondary: #0891b2;
    --accent: #d97706;
    
    /* Semantic Colors */
    --success: #059669;
    --warning: #d97706;
    --error: #dc2626;
    --info: #0891b2;
    
    /* Neutral Scale */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --container-max: 1200px;
    --section-padding: 5rem 0;
    --section-padding-mobile: 3rem 0;
    
    /* Animation */
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.6s ease-out;
    
    /* Effects */
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    --gradient-accent: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary) 100%);
    --gradient-success: linear-gradient(135deg, var(--success) 0%, var(--primary-light) 100%);
    --gradient-text: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden; /* Prevenir scroll horizontal */
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-50);
    overflow-x: hidden;
    font-size-adjust: 0.5;
    width: 100%;
    max-width: 100vw;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
    box-sizing: border-box;
}

/* =====================================================
   TYPOGRAPHY SYSTEM
   ===================================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
    margin-bottom: 1rem;
    color: var(--gray-600);
}

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

a:hover {
    color: var(--primary-dark);
}

.text-gradient {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.highlight-text {
    position: relative;
    color: var(--primary);
}

.highlight-text::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 100%;
    height: 3px;
    background: var(--gradient-accent);
    border-radius: 2px;
    opacity: 0.7;
}

/* =====================================================
   BUTTON SYSTEM
   ===================================================== */

.btn-primary-ai {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.btn-primary-ai:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    color: white;
}

.btn-primary-ai::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 0.6s;
}

.btn-primary-ai:hover::before {
    left: 100%;
}

.btn-ai-indicator {
    padding: 0.5rem;
    background: rgba(255,255,255,0.2);
    border-radius: 8px;
    animation: pulse-ai 2s infinite;
}

@keyframes pulse-ai {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.btn-secondary-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    border-radius: 12px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.btn-secondary-outline:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-1px);
}

.btn-green-gradient {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: var(--gradient-success);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.btn-green-gradient:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-primary-large {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 2.5rem;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: 16px;
    font-weight: 700;
    font-size: 1.2rem;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-xl);
}

.btn-primary-large:hover {
    transform: translateY(-3px);
    box-shadow: 0 25px 30px -5px rgba(0, 0, 0, 0.15);
    color: white;
}

/* =====================================================
   NAVIGATION
   ===================================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    max-width: 100vw;
    z-index: 1000;
    background: rgba(249, 250, 251, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    transition: all var(--transition-normal);
    box-sizing: border-box;
}

/* Removed .navbar.scrolled styles to prevent dynamic header changes */

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    width: 100%;
    box-sizing: border-box;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 24px;
    color: var(--gray-800);
}

.brand-logo {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.brand-accent {
    color: var(--primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--gray-600);
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    transition: color var(--transition-fast);
    position: relative;
}

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

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

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 16px;
    transition: all var(--transition-normal);
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    color: white;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none !important;
    border: none !important;
    cursor: pointer;
    padding: 0.5rem;
    outline: none !important; /* Eliminar outline del focus */
    box-shadow: none !important; /* Eliminar cualquier sombra */
    -webkit-tap-highlight-color: transparent; /* Eliminar highlight en móvil */
    position: relative;
    z-index: 1001;
}

.nav-toggle:focus,
.nav-toggle:active,
.nav-toggle:hover,
.nav-toggle:focus-visible {
    outline: none !important;
    box-shadow: none !important;
    background: none !important;
    border: none !important;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--gray-600);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

.brand-link {
    display: flex;
}

/* =====================================================
   COMMON SECTIONS
   ===================================================== */

section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.section-subtitle {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1rem;
}

.section-title {
    margin-bottom: 1.5rem;
}

.section-description {
    font-size: 1.1rem;
    color: var(--gray-600);
    line-height: 1.6;
}

/* Intelligence Section - Shared */
.intelligence-section {
    background: white;
}

.intelligence-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.intelligence-card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: 16px;
    padding: 2rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.intelligence-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.intelligence-card:hover::before {
    transform: scaleX(1);
}

.intelligence-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.card-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.card-header h3 {
    margin: 0;
    color: var(--gray-800);
}

.card-content {
    color: var(--gray-600);
}

.feature-list {
    margin: 1.5rem 0;
}

.feature-item {
    padding: 0.5rem 0;
    color: var(--gray-600);
    font-size: 0.95rem;
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    padding: 20px 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.5rem;
    color: white;
    margin-bottom: 0;
}

.brand img {
    height: 50px;
    width: auto;
    object-fit: contain;
}

p {
    line-height: 1.6;
    margin-bottom: 0;
}

.footer-section h4 {
    color: white;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-section a {
    display: block;
    color: var(--gray-400);
    text-decoration: none;
    margin-bottom: 0.75rem;
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
        padding: 20px 0;

}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-certifications {
    display: flex;
    gap: 1rem;
}

.cert-badge {
    padding: 0.5rem 1rem;
    background: var(--gray-800);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--gray-400);
}

/* Final CTA Section - Shared */
.final-cta-section {
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
    color: white;
    text-align: center;
}

.cta-badge {
    display: inline-block;
    padding: 0.75rem 2rem;
    background: rgba(5, 150, 105, 0.2);
    border: 1px solid rgba(5, 150, 105, 0.3);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: 2rem;
}

.cta-content h2 {
    color: white;
    margin-bottom: 1.5rem;
}

.cta-content p {
    font-size: 1.1rem;
    color: var(--gray-300);
    margin-bottom: 3rem;
}

.cta-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.cta-guarantee {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--gray-400);
}

.cta-guarantee i {
    color: var(--primary-light);
}

/* =====================================================
   ANIMATIONS & INTERACTIONS
   ===================================================== */

/* Scroll-triggered animations */
@media (prefers-reduced-motion: no-preference) {
    .fade-in-up {
        opacity: 0;
        transform: translateY(30px);
        transition: all 0.6s ease-out;
    }
    
    .fade-in-up.visible {
        opacity: 1;
        transform: translateY(0);
    }
    
    .scale-in {
        opacity: 0;
        transform: scale(0.9);
        transition: all 0.6s ease-out;
    }
    
    .scale-in.visible {
        opacity: 1;
        transform: scale(1);
    }
}

/* Focus management for accessibility */
*:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Exception for nav toggle button */
.nav-toggle:focus,
.nav-toggle:focus-visible {
    outline: none !important;
    outline-offset: 0 !important;
    box-shadow: none !important;
    background: none !important;
}

button:focus,
a:focus,
input:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Ensure nav-toggle doesn't get button focus styles */
button.nav-toggle:focus,
button.nav-toggle:focus-visible,
button.nav-toggle:active {
    outline: none !important;
    outline-offset: 0 !important;
    box-shadow: none !important;
    background: none !important;
    border: none !important;
}

/* =====================================================
   RESPONSIVE DESIGN - COMMON
   ===================================================== */

@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: var(--section-padding-mobile);
    }
    
    .nav-container {
        padding: 1rem;
    }
    
    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(249, 250, 251, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        z-index: 999;
        padding-top: 80px; /* Espacio para el navbar fijo */
        box-sizing: border-box;
    }
    
    .nav-links.active {
        display: flex !important;
        animation: fadeIn 0.3s ease-out;
        visibility: visible;
        opacity: 1;
    }
    
    /* Prevent body scroll when menu is open */
    body.nav-open {
        overflow: hidden;
    }
    
    @keyframes fadeIn {
        from { opacity: 0; }
        to { opacity: 1; }
    }
    
    .nav-link {
        font-size: 1.5rem;
        font-weight: 600;
    }
    
    .nav-cta {
        padding: 1rem 2rem;
        font-size: 1.2rem;
    }
    
    .nav-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .nav-brand {
        font-size: 20px;
    }
    
    .brand-logo {
        height: 32px;
    }
    
    .intelligence-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
    
    .btn-primary-ai,
    .btn-secondary-outline,
    .btn-primary-large {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .nav-container {
        padding: 0.75rem;
    }
    
    .nav-brand {
        font-size: 18px;
    }
    
    .brand-logo {
        height: 28px;
    }
    
    .intelligence-card {
        padding: 1.5rem;
    }
}

/* Print styles */
@media print {
    .navbar {
        display: none;
    }
    
    * {
        box-shadow: none !important;
        text-shadow: none !important;
    }
}