:root {
    --primary: #0a2342;    /* Azul Marino Corporativo */
    --accent: #c5a059;     /* Dorado Elegante */
    --light: #fff8ea;      /* Fondo suave */
    --text: #333333;
    --whatsapp: #25D366;
}

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

body {
    font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Roboto', sans-serif;
    background-color: var(--light);
    color: var(--text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.container { 
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 16px; 
}

/* Header Responsive */
header {
    text-align: center;
    padding: 20px 0 30px;
    border-bottom: 3px solid var(--accent);
    margin-bottom: 30px;
}

.logo-principal {
    width: min(120px, 25vw);
    height: auto;
    border: 3px solid var(--primary);
    border-radius: 50%;
    padding: 8px;
    background-color: rgb(240, 240, 240);
    object-fit: contain;
}

.brand-placeholder {
    font-size: clamp(1.8rem, 8vw, 3rem);
    font-weight: 900;
    color: var(--primary);
    letter-spacing: 1px;
    margin: 10px 0;
}

h1 {
    font-size: clamp(1.3rem, 6vw, 2.5rem);
    color: var(--primary);
    text-transform: uppercase;
    line-height: 1.3;
    padding: 0 10px;
}

.tagline {
    font-size: clamp(0.9rem, 4vw, 1.2rem);
    color: #666;
    margin-top: 8px;
    padding: 0 15px;
}

/* Content Layout */
.content {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* Tablet e Desktop */
@media (min-width: 768px) {
    .container {
        padding: 20px;
    }
    
    .content {
        flex-direction: row;
        gap: 40px;
        align-items: flex-start;
    }
    
    .info { 
        flex: 1.5; 
        min-width: 300px;
    }
    
    .image-container { 
        flex: 1;
        position: sticky;
        top: 20px;
    }
}

.info {
    min-width: 0;
    width: 100%;
}

/* Section Titles */
.section-title {
    font-size: clamp(1.3rem, 5vw, 1.8rem);
    color: var(--primary);
    margin: 20px 0 12px;
    border-left: 4px solid var(--accent);
    padding-left: 12px;
}

/* Benefits Section */
.benefits {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    margin: 20px 0;
}

.benefits h3 {
    font-size: clamp(1.1rem, 4.5vw, 1.3rem);
    margin-bottom: 15px;
    color: var(--primary);
}

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

.benefits-list li {
    margin-bottom: 12px;
    padding-left: 25px;
    position: relative;
    font-size: clamp(0.85rem, 3.5vw, 1rem);
}

.benefits-list li:before {
    content: "→";
    position: absolute; 
    left: 0; 
    color: var(--accent); 
    font-weight: bold;
}

/* Requirements Grid */
.req-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.req-item {
    background: var(--primary);
    color: white;
    padding: 10px 12px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    font-size: clamp(0.8rem, 3.5vw, 0.9rem);
    gap: 8px;
}

.req-item i { 
    color: var(--accent); 
    font-size: 1.1rem;
    min-width: 20px;
}

/* WhatsApp Button */
.whatsapp-button-container {
    margin-top: 20px;
}

.whatsapp-button {
    background-color: var(--whatsapp);
    color: white;
    padding: 14px 20px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: clamp(0.9rem, 4vw, 1.3rem);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
    width: 100%;
    max-width: 350px;
    gap: 8px;
}

.whatsapp-button i {
    font-size: 1.2em;
}

.whatsapp-button:active {
    transform: scale(0.98);
}

@media (min-width: 768px) {
    .whatsapp-button {
        width: auto;
        padding: 20px 40px;
    }
    
    .whatsapp-button:hover { 
        transform: scale(1.05); 
        background-color: #128c7e; 
    }
}

.cta-subtext { 
    margin-top: 10px; 
    font-size: clamp(0.75rem, 3vw, 0.9rem); 
    color: #555; 
}

/* Image Carousel */
.image-container {
    width: 100%;
    height: 300px;
    position: relative;
    overflow: hidden;
    border-radius: 16px;
    border: 3px solid white;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

@media (min-width: 480px) {
    .image-container {
        height: 400px;
    }
}

@media (min-width: 768px) {
    .image-container {
        height: 500px;
        border-radius: 20px;
        border: 5px solid white;
    }
}

@media (min-width: 1024px) {
    .image-container {
        height: 600px;
    }
}

.slide {
    width: 100%;
    height: 100%;
    position: relative;
}

.img-item {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
}

.img-item.active {
    opacity: 1;
}

/* Animações */
.escondido { 
    opacity: 0; 
    transform: translateY(20px); 
    transition: opacity 0.6s ease, transform 0.6s ease; 
}

.revelar { 
    opacity: 1; 
    transform: translateY(0); 
}

/* Footer */
footer {
    text-align: center;
    padding: 30px 20px 20px;
    margin-top: 30px;
    border-top: 1px solid rgba(0,0,0,0.1);
    font-size: clamp(0.7rem, 3vw, 0.85rem);
    color: #666;
}

/* Ajustes para telas muito pequenas */
@media (max-width: 380px) {
    .container {
        padding: 12px;
    }
    
    .req-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .benefits {
        padding: 15px;
    }
    
    .image-container {
        height: 250px;
    }
}

/* Melhorias de touch para mobile */
@media (max-width: 768px) {
    .req-item, 
    .whatsapp-button {
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
    }
    
    .req-item:active {
        opacity: 0.8;
        transform: scale(0.98);
    }
}

/* Suporte para orientação landscape em mobile */
@media (max-width: 768px) {
    .image-container {
        /*height: 250px;*/
        height: 650px;
    }
    
    header {
        padding: 15px 0 20px;
    }
    
    .benefits {
        margin: 10px 0;
    }
}