/* 
   DEFINICIÓN DE MARCA - AGUA CALMA 
   Se extraen colores del logotipo para botones y acentos.
*/
:root {
    --agua-calma-principal: #005A9C; /* Azul corporativo */
    --agua-calma-secundario: #E3F2FD; /* Azul claro para fondos o contrastes */
    --texto-oscuro: #333333;
    --blanco-puro: #FFFFFF;
    --whatsapp-green: #25D366; /* Color estándar para el mercado local */
}
/* VARIABLES DE MARCA */
:root {
    --primary: #005A9C; /* Azul Agua Calma */
    --primary-dark: #004578;
    --accent: #4CAF50; /* Verde sostenibilidad */
    --text: #2c3e50;
    --light: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 4px 12px rgba(0,0,0,0.08);
    --transition: all 0.3s ease;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', sans-serif;
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

/* NAVEGACIÓN */
.header {
    background: var(--white);
    padding: 1.2rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

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

.logo-text {
    font-size: 1.5rem;
    color: var(--primary);
    letter-spacing: -1px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: var(--transition);
}

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

.btn-nav {
    background: var(--primary);
    color: white !important;
    padding: 0.6rem 1.2rem;
    border-radius: 5px;
}

/* HERO SECTION */
.hero {
    background: linear-gradient(135deg, #eef6fb 0%, #ffffff 100%);
    padding: 100px 0;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
}


.hero h1 {
    font-size: 3.2rem;
    line-height: 1.1;
    margin: 1.5rem 0;
    color: var(--primary-dark);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-btns { display: flex; gap: 15px; }

/* BOTONES */
.btn-primary {
    background: var(--primary);
    color: white;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    display: inline-block;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    border: 2px solid var(--primary);
    color: var(--primary);
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
}

/* GRID SYSTEM */
.section-padding { padding: 80px 0; }
.bg-light { background: var(--light); }
.section-title { text-align: center; margin-bottom: 50px; font-size: 2.2rem; }

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.card {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.card:hover { transform: translateY(-10px); }
.icon { font-size: 3rem; margin-bottom: 20px; }

/* PROPUESTA / PRECIOS */
.pricing-card {
    background: var(--primary);
    color: white;
    padding: 60px;
    border-radius: 20px;
    text-align: center;
    max-width: 700px;
}

.price { font-size: 4rem; font-weight: 800; margin: 20px 0; }
.price span { font-size: 1.2rem; font-weight: 400; }
.price-list { 
    list-style: none; 
    margin: 30px 0; 
    text-align: left;
    display: inline-block;
}
.price-list li { margin: 10px 0; font-size: 1.1rem; }
.block { width: 100%; text-align: center; background: var(--white); color: var(--primary); }

/* WHATSAPP FLOAT */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    width: 65px;
    height: 65px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
    z-index: 2000;
    transition: var(--transition);
}

.whatsapp-float:hover { transform: scale(1.1); }
.whatsapp-icon { width: 35px; height: 35px; }

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.2rem; }
    .hero-grid { grid-template-columns: 1fr; text-align: center; }
    .hero-btns { justify-content: center; flex-direction: column; }
    .nav-menu { display: none; } /* Implementar JS para menú hamburguesa */
    .section-title { font-size: 1.8rem; }
    .pricing-card { padding: 30px; }
}