/* Variables de Diseño */
:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --accent: #10b981;
    --dark: #0f172a;
    --light: #f8fafc;
    --gray: #64748b;
    --gray-light: #cbd5e1;
    --white: #ffffff;
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 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);
    --radius: 16px;
    --radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--dark);
    line-height: 1.7;
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: -0.02em;
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.bg-light {
    background-color: var(--light);
}

/* Botones */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    z-index: -1;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
}

.btn-outline {
    border-color: var(--white);
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background-color: var(--white);
    color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255, 255, 255, 0.3);
}

.full-width {
    width: 100%;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05), 0 4px 12px rgba(0,0,0,0.03);
    padding: 18px 0;
    border-bottom: 1px solid rgba(203, 213, 225, 0.3);
    transition: var(--transition);
}

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

.logo img {
    height: 90px; /* Logo aún más grande en navbar */
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--dark);
    transition: color 0.3s;
}

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

.btn-nav {
    background-color: var(--primary);
    color: white !important;
    padding: 8px 20px;
    border-radius: 50px;
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, rgba(15,23,42,0.92) 0%, rgba(30,41,59,0.88) 50%, rgba(37,99,235,0.85) 100%), url('assets/Banner 2.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: var(--white);
    padding: 180px 0 120px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(37, 99, 235, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

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

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 24px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 0.8s ease-out;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: #e2e8f0;
    margin-bottom: 48px;
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 400;
    line-height: 1.8;
    text-shadow: 0 1px 10px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-buttons {
    display: flex;
    gap: 32px; /* Más separación entre botones */
    justify-content: center;
}

/* margen adicional al segundo botón para mayor aire visual */
.hero-buttons .btn + .btn {
    margin-left: 4px;
}

/* Servicios Grid */
.section-header {
    text-align: center;
    margin-bottom: 70px;
    position: relative;
}

.section-header h2 {
    font-size: 2.75rem;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--dark) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.15rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(203, 213, 225, 0.2);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(37, 99, 235, 0.2);
}

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

.icon-box {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(59, 130, 246, 0.15) 100%);
    color: var(--primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 24px;
    transition: var(--transition);
}

.card:hover .icon-box {
    transform: scale(1.1) rotate(5deg);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.card h3 {
    margin-bottom: 15px;
    font-size: 1.25rem;
}

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

/* Por qué elegirnos */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    text-align: center;
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.feature-item h4 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

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

/* Proyectos */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    position: relative;
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid rgba(203, 213, 225, 0.3);
    padding: 35px;
    min-height: 400px;
    display: flex;
    align-items: flex-end;
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.project-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: rgba(37, 99, 235, 0.3);
}

.project-card:hover .project-overlay {
    background: linear-gradient(to bottom, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.97) 55%);
}

/* Imágenes de fondo específicas para cada proyecto */
.project-violeta {
    background-image: url('assets/violeta-preview.jpg');
}

.project-daniela {
    background-image: url('assets/daniela-preview.jpg');
}

.project-eics {
    background-image: url('assets/eics-preview.jpg');
}

.project-repuestos {
    background-image: url('assets/repuestos-preview.jpg');
}

.project-cerisola {
    background-image: url('assets/cerisola.png');
}

/* Overlay semitransparente para legibilidad */
.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.95) 58%);
    z-index: 1;
    transition: var(--transition);
}

/* Contenido del proyecto sobre el overlay */
.project-info {
    position: relative;
    z-index: 2;
}

.badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 12px;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
    letter-spacing: 0.02em;
}

.project-info h3 {
    color: var(--dark);
    margin-bottom: 10px;
}

.project-info p {
    color: var(--gray);
}

.link-arrow {
    display: inline-flex;
    align-items: center;
    color: var(--primary);
    font-weight: 600;
    margin-top: 20px;
    gap: 5px;
    transition: gap 0.3s ease;
}

.link-arrow:hover {
    gap: 10px;
}

/* Contacto */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.contact-methods {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.method {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.1rem;
    color: var(--dark);
}

.method i {
    color: var(--primary);
    font-size: 1.3rem;
}

.contact-form {
    background: var(--white);
    padding: 50px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(203, 213, 225, 0.3);
    position: relative;
    overflow: hidden;
}

.contact-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 50%, var(--accent) 100%);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background: var(--light);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
    transform: translateY(-2px);
}

/* Footer */
footer {
    background: var(--dark);
    color: var(--white);
    padding: 40px 0;
    margin-top: 40px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.brand h4 {
    font-size: 1.5rem;
}

.socials a {
    color: var(--white);
    font-size: 1.5rem;
    margin-left: 15px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    transition: background-color 0.3s ease, color 0.3s;
}

.socials a i {
    transition: transform 0.2s ease, text-shadow 0.2s ease;
}

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

/* Color de marca para WhatsApp en el footer */
.socials a .fa-whatsapp {
    color: #25d366; /* verde WhatsApp */
}

.socials a:hover .fa-whatsapp {
    color: #20ba5a; /* verde más oscuro en hover */
    transform: scale(1.08);
    text-shadow: 0 0 8px rgba(32, 186, 90, 0.6);
}

.socials a:has(.fa-whatsapp):hover {
    background-color: rgba(37, 211, 102, 0.15);
}

/* Colores de marca para Instagram y Facebook en el footer */
.socials a .fa-instagram {
    color: #E4405F; /* rosa/rojo Instagram */
}

.socials a:hover .fa-instagram {
    color: #cc3750; /* tono más oscuro en hover */
    transform: scale(1.08);
    text-shadow: 0 0 8px rgba(228, 64, 95, 0.45);
}

.socials a:has(.fa-instagram):hover {
    background-color: rgba(228, 64, 95, 0.15);
}

.socials a .fa-facebook {
    color: #1877F2; /* azul Facebook */
}

.socials a:hover .fa-facebook {
    color: #0f5bd1; /* tono más oscuro en hover */
    transform: scale(1.08);
    text-shadow: 0 0 8px rgba(24, 119, 242, 0.45);
}

.socials a:has(.fa-facebook):hover {
    background-color: rgba(24, 119, 242, 0.15);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    .section {
        padding: 60px 0;
    }

    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        display: none;
    }

    .nav-links.active {
        display: flex;
    }

    .logo img {
        height: 80px;
    }

    .hero {
        padding: 140px 0 80px 0;
        background-attachment: scroll;
    }

    .hero h1 {
        font-size: 2rem;
        line-height: 1.3;
        margin-bottom: 20px;
    }

    .hero-subtitle {
        font-size: 1.1rem;
        margin-bottom: 36px;
        line-height: 1.6;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 16px;
        padding: 0 20px;
    }

    .btn {
        width: 100%;
        text-align: center;
        padding: 16px 32px;
        font-size: 1rem;
    }

    .section-header h2 {
        font-size: 2rem;
        line-height: 1.2;
    }

    .section-header p {
        font-size: 1rem;
        padding: 0 10px;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .card {
        padding: 32px 24px;
    }

    .icon-box {
        width: 56px;
        height: 56px;
        font-size: 1.6rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .project-card {
        min-height: 320px;
        padding: 28px 24px;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-form {
        padding: 32px 24px;
    }

    .contact-text h2 {
        font-size: 1.8rem;
        line-height: 1.3;
    }

    .contact-text p {
        font-size: 1rem;
    }

    .method {
        font-size: 1rem;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 24px;
    }

    .socials {
        display: flex;
        gap: 12px;
        justify-content: center;
    }

    .socials a {
        margin-left: 0;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .testimonial-card {
        padding: 28px 24px;
    }

    .testimonial-avatar {
        width: 60px;
        height: 60px;
    }

    .testimonial-author h4 {
        font-size: 1.1rem;
    }

    .testimonial-text {
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.75rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

    .btn {
        padding: 14px 28px;
        font-size: 0.95rem;
    }

    .card {
        padding: 28px 20px;
    }

    .contact-form {
        padding: 28px 20px;
    }

    .testimonial-card {
        padding: 24px 20px;
    }

    .project-card {
        min-height: 300px;
        padding: 24px 20px;
    }
}

/* Botón flotante de WhatsApp */
.whatsapp-float {
    position: fixed;
    bottom: 25px;
    right: 25px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: all 0.3s ease;
    cursor: pointer;
}

.whatsapp-float:hover {
    background-color: #20ba5a;
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

.whatsapp-float i {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

@media (max-width: 768px) {
    .whatsapp-float {
        width: 55px;
        height: 55px;
        font-size: 1.8rem;
        bottom: 20px;
        right: 20px;
    }
}

/* Sección de Testimonios */
.testimonials-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.testimonial-card {
    background: white;
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    border-left: 5px solid transparent;
    border-image: linear-gradient(180deg, var(--primary) 0%, var(--primary-light) 100%);
    border-image-slice: 1;
    position: relative;
    overflow: hidden;
}

.testimonial-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-left-color: var(--primary-light);
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.testimonial-avatar {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    border: 3px solid var(--primary);
}

.testimonial-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-author h4 {
    margin: 0 0 5px 0;
    font-size: 1.2rem;
    color: var(--dark);
}

.testimonial-role {
    margin: 0 0 8px 0;
    font-size: 0.9rem;
    color: var(--gray);
}

.testimonial-stars {
    display: flex;
    gap: 3px;
}

.testimonial-stars i {
    color: #ffc107;
    font-size: 0.9rem;
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--gray);
    margin-bottom: 20px;
    font-style: italic;
    position: relative;
}

.testimonial-text::before {
    content: '"';
    font-size: 4rem;
    color: var(--primary);
    opacity: 0.1;
    position: absolute;
    top: -20px;
    left: -10px;
    font-family: Georgia, serif;
}

.testimonial-project {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #e9ecef;
}

.testimonial-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 123, 255, 0.1);
    color: var(--primary);
    padding: 8px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.testimonial-badge i {
    font-size: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .testimonial-card {
        padding: 25px;
    }

    .testimonial-avatar {
        width: 60px;
        height: 60px;
    }
}

/* Fondos circulares en hover para íconos sociales */
.socials a:has(.fa-whatsapp):hover {
    background-color: rgba(37, 211, 102, 0.15);
}

.socials a:has(.fa-instagram):hover {
    background-color: rgba(228, 64, 95, 0.15);
}

.socials a:has(.fa-facebook):hover {
    background-color: rgba(24, 119, 242, 0.15);
}