/* c:\xampp\htdocs\itp\assets\css\styles.css */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@500;700;800&display=swap');

:root {
  /* Corporativos ITP */
  --primary: #0A192F;       /* Azul oscuro tech */
  --secondary: #0F4C81;     /* Azul tecnológico (pantone classic blue) */
  --accent: #00A8E8;        /* Celeste brillante */
  --accent-hover:#008fc7;
  --white: #ffffff;
  --light-bg: #F8FAFC;
  --gray-200: #E2E8F0;
  --gray-600: #475569;
  --gray-800: #1E293B;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 15px 35px rgba(0, 168, 232, 0.15);
  
  --transition: 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: 'Inter', sans-serif;
    color: var(--gray-800);
    line-height: 1.6;
    background-color: var(--light-bg);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-accent { color: var(--accent); }
.text-primary { color: var(--primary); }

.section-padding { padding: 100px 0; }
.bg-light { background-color: var(--light-bg); }
.bg-white { background-color: var(--white); }
.bg-dark { background-color: var(--primary); color: var(--white); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 168, 232, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 168, 232, 0.4);
    color: var(--white);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--gray-200);
}

.btn-outline:hover {
    border-color: var(--secondary);
    color: var(--secondary);
    background: rgba(15, 76, 129, 0.05);
}

.btn-whatsapp {
    background-color: #25D366;
    color: var(--white);
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
    background-color: #1EBE55;
    transform: translateY(-2px);
}

/* Header & Nav */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 15px 0;
}

.header.scrolled {
    padding: 10px 0;
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
}

.logo i {
    color: var(--accent);
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
    list-style: none;
}

.nav-links a {
    font-weight: 500;
    color: var(--gray-600);
    transition: var(--transition);
    font-size: 0.95rem;
}

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

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(to bottom right, #ffffff, #F0F7FA);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 168, 232, 0.1) 0%, rgba(255,255,255,0) 70%);
    border-radius: 50%;
    z-index: 0;
}

.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    color: var(--primary);
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.hero-text p {
    font-size: 1.2rem;
    color: var(--gray-600);
    margin-bottom: 40px;
    max-width: 90%;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
}

.hero-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: float 6s ease-in-out infinite;
}

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

/* Section Headlines */
.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
    color: var(--primary);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--gray-600);
}

/* Problems Section */
.problems-section {
    background-color: var(--primary);
    color: var(--white);
    padding: 100px 0;
}

.problems-section .section-header h2 {
    color: var(--white);
}

.problems-section .section-header p {
    color: var(--gray-200);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.problem-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    padding: 30px;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.problem-card:hover {
    transform: translateY(-5px);
    background: rgba(255,255,255,0.1);
}

.problem-card i {
    font-size: 2rem;
    color: #ef4444; /* Rojo para el problema */
    margin-bottom: 20px;
}

.problem-card h3 {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: var(--white);
}

.problem-solution-phrase {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--accent);
    margin-top: 40px;
    padding: 30px;
    background: rgba(0, 168, 232, 0.1);
    border-radius: var(--radius-md);
    border: 1px dashed var(--accent);
}

/* Solutions / Services Section */
.services-section {
    background: var(--light-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-top: 4px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-top-color: var(--accent);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: #F0F7FA;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--accent);
    font-size: 1.8rem;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--accent);
    color: var(--white);
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--primary);
}

.service-card p {
    color: var(--gray-600);
    font-size: 0.95rem;
}

/* Benefits Section */
.benefits-section {
    background: var(--white);
    padding: 100px 0;
}

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

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

.benefits-list li {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.benefit-check {
    width: 30px;
    height: 30px;
    background: var(--accent);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.benefit-text h4 {
    font-size: 1.1rem;
    color: var(--primary);
    margin-bottom: 4px;
}

.benefit-text p {
    color: var(--gray-600);
    margin: 0;
    font-size: 0.95rem;
}

.benefits-img {
    background: var(--light-bg);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
}

.benefits-img .mockup {
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: 20px;
}

/* Use Cases Section */
.usecases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.usecase-card {
    background: var(--white);
    padding: 30px 20px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.usecase-card:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
}

.usecase-card i {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-bottom: 16px;
}

.usecase-card h4 {
    color: var(--primary);
    font-size: 1.1rem;
}

/* Why Choose Us */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature-item {
    display: flex;
    gap: 20px;
}

.feature-icon {
    font-size: 2rem;
    color: var(--accent);
}

.feature-content h4 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--primary);
}

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

/* About Us */
.about-section {
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius-lg);
    margin: 40px 20px;
    padding: 80px 40px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 24px;
}

.about-text p {
    color: var(--gray-200);
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 40px;
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--accent);
}

/* Pre-footer CTA */
.cta-section {
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    padding: 80px 0;
    text-align: center;
    color: var(--white);
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    color: var(--accent);
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* Contact Form */
.contact-section {
    padding: 100px 0;
    background: var(--white);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    background: var(--light-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.contact-info {
    background: var(--primary);
    color: var(--white);
    padding: 50px 40px;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.contact-info p {
    color: var(--gray-200);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-detail-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-detail-item i {
    font-size: 1.5rem;
    color: var(--accent);
}

.contact-form-wrapper {
    padding: 50px 40px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--gray-800);
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
    background: var(--white);
}

.form-control:focus {
    border-color: var(--accent);
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 168, 232, 0.1);
}

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

.form-feedback {
    display: none;
    margin-top: 20px;
    padding: 15px;
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.form-feedback.success {
    display: block;
    background: #def7ec;
    color: #03543f;
    border: 1px solid #31c48d;
}

.form-feedback.error {
    display: block;
    background: #fde8e8;
    color: #9b1c1c;
    border: 1px solid #f9acaa;
}

/* Footer */
.footer {
    background: var(--primary);
    color: var(--gray-200);
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    color: var(--white);
    font-size: 1.2rem;
    margin-bottom: 20px;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--gray-200);
    transition: var(--transition);
}

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

.social-links {
    display: flex;
    gap: 16px;
    margin-top: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    color: var(--white);
}

.social-links a:hover {
    background: var(--accent);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

/* Floating WhatsApp */
.floating-wa {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: var(--white);
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 0px 4px 20px rgba(0,0,0,0.15);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.floating-wa:hover {
    transform: scale(1.1);
    background-color: #1ebe55;
    color: var(--white);
}

/* Responsive */
@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 2.8rem;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-image {
        order: -1;
        margin-bottom: 40px;
    }
    
    .about-section {
        grid-template-columns: 1fr;
    }

    .contact-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none; /* simple mobile hide for now, could implement hamburger */
    }
    .mobile-menu-btn {
        display: block;
    }
    .benefits-content {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .social-links {
        justify-content: center;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .cta-buttons {
        flex-direction: column;
    }
}