/* ===== CSS Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Colors */
    --primary: #0057A6;
    --primary-light: #0068c7;
    --primary-dark: #004080;
    --accent: #FFCC00;
    --accent-dark: #e6b800;
    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #F4F4F4;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    --success: #22C55E;
    --whatsapp: #25D366;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --section-padding: 5rem;
    --container-padding: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 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: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
}

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

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

/* ===== Container ===== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.25rem; }

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-family: var(--font-primary);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 0.5rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1rem;
}

.btn-xl {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

.btn-full {
    width: 100%;
}

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

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

.btn-accent {
    background: var(--accent);
    color: var(--gray-900);
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.btn-accent:hover {
    background: var(--accent-dark);
    transform: translateY(-1px);
}

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

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

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

.btn-whatsapp:hover {
    background: #20bd5a;
}

/* ===== Top Bar ===== */
.top-bar {
    background: var(--primary);
    color: var(--white);
    padding: 0.5rem 0;
    font-size: 0.875rem;
}

.top-bar .container {
    display: flex;
    justify-content: flex-end;
    gap: 1.5rem;
}

.top-bar-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--white);
    opacity: 0.9;
}

.top-bar-link:hover {
    opacity: 1;
}

@media (max-width: 768px) {
    .top-bar {
        display: none;
    }
}

/* ===== Header ===== */
.header {
    position: sticky;
    top: 0;
    background: var(--white);
    box-shadow: var(--shadow-md);
    z-index: 100;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem var(--container-padding);
}

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 48px;
    width: auto;
    object-fit: contain;
}

.nav-desktop {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    color: var(--gray-700);
    padding: 0.5rem 0;
    position: relative;
}

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

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

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--gray-700);
    cursor: pointer;
    padding: 0.5rem;
}

.nav-mobile {
    display: none;
    flex-direction: column;
    padding: 1rem var(--container-padding) 1.5rem;
    background: var(--white);
    border-top: 1px solid var(--gray-200);
}

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

.nav-link-mobile {
    padding: 0.75rem 0;
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-100);
}

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

@media (max-width: 1024px) {
    .nav-desktop, .desktop-only {
        display: none;
    }
    
    .menu-toggle, .mobile-only {
        display: block;
    }
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 4rem 0 6rem;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.hero-blur {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
}

.hero-blur-1 {
    width: 500px;
    height: 500px;
    background: var(--accent);
    top: -100px;
    right: -100px;
}

.hero-blur-2 {
    width: 400px;
    height: 400px;
    background: var(--primary-light);
    bottom: -100px;
    left: -100px;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-title .text-accent {
    color: var(--accent);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    line-height: 0;
}

.hero-wave svg {
    width: 100%;
    height: auto;
}

@media (max-width: 768px) {
    .hero {
        min-height: 500px;
        padding: 3rem 0 5rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
}

/* ===== Sections ===== */
.section {
    padding: var(--section-padding) 0;
}

.section-light {
    background: var(--gray-50);
}

.section-gray {
    background: var(--white);
}

.section-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    margin-bottom: 1rem;
}

.section-primary .section-title {
    color: var(--white);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

.section-primary .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

/* ===== Grid ===== */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* ===== Cards ===== */
.card {
    background: var(--white);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.card-image {
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.card-content {
    padding: 1.5rem;
}

.card-title {
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.card-description {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Benefit Card */
.card-benefit {
    text-align: center;
    padding: 2rem 1.5rem;
}

.benefit-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--white);
}

.card-benefit .card-title {
    margin-bottom: 0.75rem;
}

.card-benefit .card-description {
    margin-bottom: 0;
}

/* ===== About Section ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-content {
    color: var(--white);
}

.about-text {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1rem;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 1rem 1.5rem;
    border-radius: 0.75rem;
    color: var(--white);
}

.highlight-icon {
    width: 40px;
    height: 40px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-900);
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* ===== Contact Section ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-form {
    background: var(--white);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--gray-700);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-200);
    border-radius: 0.5rem;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 87, 166, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--primary);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
}

.contact-item strong {
    display: block;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: var(--gray-500);
    font-size: 0.875rem;
}

.contact-item a {
    color: var(--primary);
}

.contact-item a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* ===== Footer ===== */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 4rem 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
}

.footer-logo {
    height: 48px;
    width: auto;
    margin-bottom: 1rem;
    background: var(--white);
    padding: 0.5rem;
    border-radius: 0.5rem;
}

.footer-brand p {
    font-size: 0.875rem;
    color: var(--gray-400);
}

.footer-links h4,
.footer-contact h4 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 1rem;
}

.footer-links a {
    display: block;
    color: var(--gray-400);
    padding: 0.375rem 0;
    font-size: 0.875rem;
}

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

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding: 1.5rem 0;
    text-align: center;
    font-size: 0.875rem;
    color: var(--gray-500);
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* ===== Animations ===== */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-up {
    animation: fadeUp 0.6s ease forwards;
}

.delay-1 {
    animation-delay: 0.1s;
}

.delay-2 {
    animation-delay: 0.2s;
}

/* ===== Utilities ===== */
.text-white {
    color: var(--white) !important;
}

.text-accent {
    color: var(--accent);
}

/* ===== Responsive Utilities ===== */
@media (max-width: 1024px) {
    .desktop-only {
        display: none !important;
    }
}

@media (min-width: 1025px) {
    .mobile-only {
        display: none !important;
    }
}