:root {
    --color-primary: #FF3385; /* Rosa vibrante Interfibra */
    --color-secondary: #FFE5F0; /* Rosa pastel muy sutil */
    --color-dark: #1A1A1A; /* Negro elegante */
    --color-white: #ffffff;
    --color-light-gray: #FAFAFA;
    --font-main: 'Montserrat', sans-serif;
}

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

body {
    font-family: var(--font-main);
    color: var(--color-dark);
    background-color: var(--color-light-gray);
    overflow-x: hidden;
}

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

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

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

/* --- Navbar --- */
.navbar {
    background: var(--color-white);
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom-left-radius: 20px;
    border-bottom-right-radius: 20px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
}

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

.nav-links {
    list-style: none;
    display: flex;
    gap: 25px;
}

.nav-links a {
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: capitalize;
    color: var(--color-dark);
    transition: color 0.3s;
}

.nav-links a:hover, .nav-links a.active {
    border-bottom: 2px solid var(--color-primary);
    color: var(--color-primary);
}

.logo-container {
    flex-grow: 1;
    display: flex;
    justify-content: center;
}

.logo-placeholder {
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: -1px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.btn-portal {
    background-color: var(--color-primary);
    color: var(--color-white) !important;
    padding: 10px 25px;
    border-radius: 5px;
    font-weight: 800;
    font-size: 0.9rem;
    box-shadow: 0 4px 10px rgba(255, 51, 133, 0.3);
}

.mobile-menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* --- Hero Section --- */
.hero {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-white) 100%);
    min-height: 100vh;
    padding-top: 100px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-slider-wrapper {
    display: flex;
    width: 400%; /* 4 slides = 400% */
    transition: transform 0.5s ease-in-out;
}

.hero-slide {
    width: 25%; /* each slide is 1/4 of 400% */
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.hero-mascot {
    flex: 1;
    display: flex;
    justify-content: center;
}

.mascot-placeholder {
    width: 300px;
    height: 400px;
    background: rgba(255,255,255,0.1);
    border: 2px dashed rgba(255,255,255,0.5);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--color-white);
}

.mascot-placeholder p {
    font-size: 1rem;
    margin-top: 10px;
    font-weight: 600;
}

.hero-text {
    flex: 1;
    text-align: left;
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-servitel-plus {
    font-size: 2.5rem;
    font-weight: 900;
    letter-spacing: -2px;
}

.plus-sign {
    color: var(--color-primary);
}

.hero-date {
    font-size: 1.2rem;
    font-weight: 800;
    color: #999;
}

.hero-slider-dots {
    position: absolute;
    bottom: 30px;
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 10px;
}

.dot {
    width: 12px;
    height: 12px;
    background-color: rgba(255,255,255,0.5);
    border-radius: 50%;
    cursor: pointer;
}

.dot.active {
    background-color: var(--color-white);
}

/* --- Planes Section --- */
.planes-section {
    background-color: var(--color-white);
    padding: 80px 0;
    position: relative;
    border-bottom-left-radius: 40px;
    border-bottom-right-radius: 40px;
}

.planes-bg-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: radial-gradient(circle at center, rgba(255, 51, 133, 0.05) 0%, transparent 60%);
    pointer-events: none;
}

.section-title h2 {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 10px;
}

.view-all-link {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-white);
}

.planes-carousel {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 50px;
    position: relative;
    height: 600px;
}

.plan-card {
    background: var(--color-white);
    border: 1px solid var(--color-secondary);
    border-radius: 20px;
    padding: 3px;
    position: absolute;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.plan-card-inner {
    background: var(--color-white);
    color: var(--color-dark);
    border-radius: 18px;
    padding: 30px 20px;
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.orbit-card {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 300px;
    height: 420px;
    margin-left: -150px;
    margin-top: -210px;
    transition: transform 0.8s ease-in-out, opacity 0.8s ease-in-out, z-index 0.8s;
}

.plan-speed {
    font-size: 4.5rem;
    font-weight: 900;
    line-height: 1;
}

.plan-speed span {
    font-size: 1.5rem;
    display: inline-block;
    vertical-align: super;
}

.plan-type {
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 10px;
}

.plan-divider {
    font-weight: 900;
    font-size: 1.1rem;
    letter-spacing: 1px;
    margin: 15px 0 5px;
}

.plan-includes {
    font-size: 0.8rem;
    font-weight: 600;
    line-height: 1.2;
}

.small-text {
    font-size: 0.6rem;
    margin-top: 5px;
    opacity: 0.8;
}

.plan-icon {
    font-size: 3rem;
    margin: 20px 0;
    color: var(--color-primary);
}

.plan-icon-large {
    font-size: 4rem;
}

.btn-plan {
    background-color: var(--color-primary);
    color: var(--color-white);
    font-weight: 900;
    padding: 10px 30px;
    border-radius: 20px;
    margin-top: auto;
    font-size: 1.1rem;
    box-shadow: 0 4px 15px rgba(255, 51, 133, 0.3);
}

.planes-mascot {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 99;
}

.mascot-small {
    width: auto;
    height: 450px;
}

/* --- Business Banner --- */
.business-banner {
    padding: 60px 0;
    background-color: var(--color-light-gray);
}

.business-banner h2 {
    font-size: 3rem;
    font-weight: 900;
    line-height: 1.1;
}

/* --- Servitel+ Section --- */
.servitel-plus-section {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-white) 100%);
    padding: 80px 0;
    color: var(--color-dark);
}

.s-plus-container {
    display: flex;
    align-items: center;
    gap: 50px;
}

.s-plus-text {
    flex: 1;
}

.s-plus-logo {
    font-size: 4rem;
    font-weight: 900;
    letter-spacing: -3px;
    margin-bottom: 40px;
}

.s-plus-features {
    display: flex;
    gap: 30px;
    margin-bottom: 30px;
}

.feature-item {
    text-align: center;
}

.feature-item i {
    font-size: 2rem;
    margin-bottom: 10px;
}

.feature-item h3 {
    font-size: 2rem;
    font-weight: 900;
    line-height: 1;
}

.feature-item p {
    font-size: 0.9rem;
}

.s-plus-description {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 30px;
    max-width: 450px;
}

.google-play-btn img {
    height: 60px;
}

.s-plus-image {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.image-placeholder {
    width: 100%;
    max-width: 500px;
    height: 350px;
    background: rgba(0,0,0,0.5);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.image-placeholder p {
    font-size: 1rem;
    margin-top: 10px;
}

/* --- Testimonials Section --- */
.testimonials-section {
    background-color: var(--color-white);
    padding: 80px 0;
    border-bottom-left-radius: 40px;
    border-bottom-right-radius: 40px;
}

.testimonials-section .section-title p {
    font-size: 1.2rem;
    font-weight: 600;
}

.testimonials-carousel {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 50px;
    position: relative;
    height: 300px;
}

.testimonials-track {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    width: 800px;
    height: 100%;
}

.testimonial-card {
    background-color: var(--color-white);
    color: var(--color-dark);
    padding: 30px;
    border-radius: 10px;
    width: 350px;
    position: absolute;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.t-header h4 {
    font-weight: 800;
    font-size: 1.2rem;
}

.t-header span {
    font-size: 0.9rem;
    color: #666;
    display: block;
    margin-bottom: 15px;
}

.testimonial-card p {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.quote-icon {
    width: 40px;
    height: 40px;
    background-color: black;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.center-card {
    z-index: 3;
    transform: scale(1);
}

.side-card {
    z-index: 2;
    opacity: 0.5;
    background-color: #ddd;
}

.side-card:nth-child(2) {
    transform: translateX(-200px) scale(0.8);
}
.side-card:nth-child(4) {
    transform: translateX(200px) scale(0.8);
}
.side-card:nth-child(1) {
    transform: translateX(-350px) scale(0.6);
    opacity: 0.2;
}

.carousel-nav {
    background: rgba(0,0,0,0.5);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1.2rem;
    z-index: 10;
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 30px;
    align-items: start;
    margin-bottom: 40px;
}

.logo-primary {
    color: var(--color-primary);
    font-size: 2.5rem;
}

.footer h3 {
    color: var(--color-primary);
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 20px;
}

.footer-contact ul {
    list-style: none;
}

.footer-contact li {
    font-weight: 600;
    margin-bottom: 10px;
}

.footer-contact i {
    color: var(--color-primary);
    width: 25px;
}

.footer-address p {
    font-weight: 600;
    font-size: 0.9rem;
    line-height: 1.5;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #ccc;
    font-size: 0.8rem;
    font-weight: 600;
    color: #FF3385;
}

.mobile-only { display: none; }

/* Responsive */
@media (max-width: 992px) {
    .nav-links { display: none; }
    .mobile-menu-toggle { display: block; }
    .nav-actions { display: none; } /* Hide desktop button */
    .mobile-only { display: block; margin-top: 15px; }
    
    .hero-content { flex-direction: column; text-align: center; }
    .hero-text { text-align: center; margin-top: 30px; }
    .hero-text h1 { font-size: 2.2rem; }
    .hero-subtitle { font-size: 1.2rem; }
    .logo-servitel-plus { font-size: 1.8rem; }
    .mascot-small { height: 250px; } /* Smaller mascot */
    .planes-carousel { height: 400px; margin-top: 20px; }
    
    .s-plus-container { flex-direction: column; text-align: center; }
    .s-plus-logo { font-size: 2.5rem; }
    .s-plus-features { justify-content: center; }
    .s-plus-description { margin: 0 auto 30px; font-size: 1rem; }
    .business-banner h2 { font-size: 1.8rem; }
    
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
    .testimonials-track { width: 100%; }
    .side-card { display: none; }
}

@media (max-width: 480px) {
    .navbar-brand { font-size: 1.1rem !important; }
    .navbar-brand img { height: 35px !important; }
    .whatsapp-float { width: 50px; height: 50px; font-size: 25px; bottom: 20px; right: 20px; }
}

/* --- WhatsApp Float Button --- */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 35px;
    box-shadow: 2px 2px 10px rgba(0,0,0,0.3);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background-color: #20b858;
    color: #FFF;
}