/*
 * Karú - Soluciones Tecnológicas
 * Main Stylesheet
 * Author: Karú Team
 * Version: 2.0
 */

/* ============================================
   CSS Variables
   ============================================ */
:root {
    /* Colors */
    --color-primary: #00a388;
    --color-primary-dark: #008770;
    --color-primary-light: #1becde;
    --color-secondary: #0d7a6a;
    --color-accent: #1becde;
    
    /* Neutrals */
    --color-white: #ffffff;
    --color-gray-50: #f8f9fa;
    --color-gray-100: #f1f3f5;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --color-gray-400: #ced4da;
    --color-gray-500: #adb5bd;
    --color-gray-600: #6c757d;
    --color-gray-700: #495057;
    --color-gray-800: #343a40;
    --color-gray-900: #212529;
    --color-black: #000000;
    
    /* Text Colors */
    --color-text-primary: #2c3e50;
    --color-text-secondary: #6c757d;
    --color-text-light: #838b84;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'Poppins', sans-serif;
    
    /* Font Sizes */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--spacing-md);
}

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

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ============================================
   Utility Classes
   ============================================ */
.text-primary { color: var(--color-primary) !important; }
.bg-white { background-color: var(--color-white) !important; }
.bg-light { background-color: var(--color-gray-50) !important; }
.section-padding { padding: 5rem 0; }

/* ============================================
   Navbar
   ============================================ */
.navbar {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 1rem 0;
    transition: all var(--transition-base);
}

.navbar-scrolled {
    padding: 0.5rem 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    padding: 0;
}

.logo-img {
    height: 40px;
    width: auto;
    transition: height var(--transition-base);
}

.navbar-scrolled .logo-img {
    height: 35px;
}

.navbar-nav .nav-link {
    font-weight: 500;
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    padding: 0.5rem 1rem;
    margin: 0 0.25rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--color-primary);
    background-color: rgba(0, 163, 136, 0.05);
}

.navbar-nav .btn-contact {
    background-color: var(--color-primary);
    color: var(--color-white) !important;
    padding: 0.5rem 1.5rem;
}

.navbar-nav .btn-contact:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.navbar-toggler {
    border: none;
    padding: 0.5rem;
}

.navbar-toggler:focus {
    box-shadow: none;
}

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

.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8f0f2 100%);
    position: relative;
    padding-top: 80px;
}

.hero-title {
    font-size: clamp(1.5rem, 3.5vw, 2.75rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
}

.hero-banner {
    width: 100%;
    padding: 5rem 0 4rem;
}

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

.hero-logo-img {
    width: clamp(260px, 45vw, 420px);
    height: auto;
    margin: 0 auto var(--spacing-xl);
}

.background-title {
    background: url('../images/background-title.png') center/cover no-repeat;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.hero-image {
    max-width: 500px;
    margin: 0 auto;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-white);
    box-shadow: var(--shadow-md);
    color: var(--color-primary);
    animation: bounce 2s infinite;
}

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

/* ============================================
   Section Styles
   ============================================ */
.section-label {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

.solutions-subtitle {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--color-text-primary);
}

.bg-nosotros {
    background: linear-gradient(180deg, #f4fbf9 0%, #ffffff 100%);
}

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

.nosotros-centered .value-card,
.nosotros-centered .mission-vision-card {
    text-align: left;
}

/* ============================================
   Value Cards
   ============================================ */
.value-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    height: 100%;
    transition: all var(--transition-base);
    border: 2px solid var(--color-gray-200);
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.value-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    margin-bottom: var(--spacing-lg);
}

.value-card h4 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.value-card p {
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

/* ============================================
   Mission & Vision Cards
   ============================================ */
.mission-vision-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    height: 100%;
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--color-primary);
}

.card-header-custom h3 {
    font-size: var(--font-size-2xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

.mission-vision-card p {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 0;
}

/* ============================================
   Timeline
   ============================================ */
.timeline {
    position: relative;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-full);
}

.timeline-item {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
    position: relative;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-number {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 2;
}

.timeline-content {
    flex: 1;
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-top: 1rem;
}

.timeline-content h4 {
    font-size: var(--font-size-2xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.timeline-content p {
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

/* ============================================
   Solution Tabs
   ============================================ */
.solution-tabs {
    display: flex;
    justify-content: center;
    border: none;
    gap: 1rem;
    flex-wrap: wrap;
}

.solution-tabs .nav-link {
    background-color: var(--color-gray-100);
    color: var(--color-text-primary);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    padding: 0.75rem 2rem;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.solution-tabs .nav-link:hover {
    background-color: var(--color-gray-200);
    transform: translateY(-2px);
}

.solution-tabs .nav-link.active {
    background-color: var(--color-gray-100);
    color: var(--color-text-primary);
    border-color: var(--color-primary);
    box-shadow: none;
}

/* ============================================
   Solution Cards
   ============================================ */
.solution-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    height: 100%;
    transition: all var(--transition-base);
    border: 2px solid var(--color-gray-200);
    text-align: center;
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.solution-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
}

.solution-card h4 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.solution-card p {
    color: var(--color-text-secondary);
    margin-bottom: 0;
    font-size: var(--font-size-sm);
}

.solution-card-horizontal {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    height: 100%;
    transition: all var(--transition-base);
    border: 2px solid var(--color-gray-200);
}

.solution-card-horizontal:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.solution-icon-large {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.solution-card-horizontal h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.solution-card-horizontal p {
    color: var(--color-text-secondary);
    margin-bottom: 0;
    font-size: var(--font-size-sm);
}

/* ============================================
   Salesforce Section
   ============================================ */
.salesforce-content {
    padding-right: var(--spacing-2xl);
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-lg);
}

.feature-list svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

.salesforce-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-xl);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.stat-number {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    padding: 5rem 0;
    color: var(--color-white);
}

.cta-title {
    color: var(--color-white);
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-lg);
}

.cta-text {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.95;
}

/* ============================================
   Contact Section
   ============================================ */
.contact-form .form-group {
    margin-bottom: var(--spacing-lg);
}

.contact-form label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.contact-form .form-control {
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

.contact-form .form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 163, 136, 0.1);
    outline: none;
}

.contact-form textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.contact-info {
    background-color: var(--color-gray-50);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.contact-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background-color: var(--color-primary);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item h6 {
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
}

.contact-item a,
.contact-item p {
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    margin-bottom: 0;
}

.social-links .social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-white);
    color: var(--color-primary);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.social-links .social-link:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    border-radius: var(--radius-md);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
    border: none;
    cursor: pointer;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--color-white);
}

.btn-outline-primary {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

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

.btn-light {
    background-color: var(--color-white);
    color: var(--color-primary);
}

.btn-light:hover {
    background-color: var(--color-gray-50);
    color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: var(--font-size-lg);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: var(--color-white);
    padding: 4rem 0 2rem;
}

.footer-logo {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--color-white);
}

.footer-text {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer-text-small {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-white);
    padding-left: 5px;
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-sm);
}

.newsletter-form .form-control {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    flex: 1;
}

.newsletter-form .form-control::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.newsletter-form .btn {
    flex-shrink: 0;
}

.footer-divider {
    border-color: rgba(255, 255, 255, 0.1);
    margin: 2rem 0;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 0;
    font-size: var(--font-size-sm);
}

.footer-legal {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: var(--spacing-xl);
    justify-content: center;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
}

.footer-legal a:hover {
    color: var(--color-white);
}

/* ============================================
   Back to Top Button
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: var(--color-white);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

/* ============================================
   Animations
   ============================================ */
.fade-in {
    animation: fadeIn 1s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 991px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
    }
    
    .section-padding {
        padding: 3rem 0;
    }
    
    .hero-section {
        padding-top: 100px;
        padding-bottom: 3rem;
    }
    
    .timeline::before {
        display: none;
    }
    
    .timeline-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .timeline-number {
        margin-bottom: var(--spacing-md);
    }
    
    .salesforce-content {
        padding-right: 0;
        margin-bottom: var(--spacing-2xl);
    }
    
    .footer-legal {
        justify-content: center;
        margin-top: var(--spacing-md);
    }
}

@media (max-width: 767px) {
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .solution-tabs {
        flex-direction: column;
    }
    
    .solution-tabs .nav-link {
        width: 100%;
        text-align: center;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .newsletter-form .btn {
        width: 100%;
    }
    
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .navbar,
    .back-to-top,
    .scroll-indicator {
        display: none !important;
    }
    
    .section-padding {
        padding: 1rem 0;
    }
}