/* ======================
   VARIABLES GLOBALES
====================== */

:root {
    --clr-primary: #0d6efd;
    --clr-primary-dark: #0a58ca;
    --clr-text: #333;
    --clr-text-light: #555;
    --clr-bg: #f5f6f8;
    --clr-white: #ffffff;
    --clr-footer-bg: #eef0f3;
    --clr-footer-text: #444;
    --font-display: 'Sora', sans-serif;
    --font-body: 'Inter', "Segoe UI", Arial, sans-serif;
    --radius: 12px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
    --transition: 0.25s ease;
}

/* ======================
   BASE
====================== */

body {
    margin: 0;
    font-family: var(--font-body);
    background-color: var(--clr-bg);
    color: var(--clr-text);
    -webkit-font-smoothing: antialiased;
}

/* ======================
   NAVBAR / HEADER
====================== */

.navbar {
    background-color: var(--clr-white) !important;
    padding: 0.8rem 0;
    position: sticky;
    top: 0;
    z-index: 1030;
}

.navbar .nav-link {
    color: var(--clr-text);
    font-weight: 500;
    font-size: 0.92rem;
    position: relative;
    padding-bottom: 4px;
    transition: color var(--transition);
}

.navbar .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--clr-primary);
    border-radius: 2px;
    transition: width var(--transition);
}

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

.navbar .nav-link:hover::after {
    width: 70%;
}

/* Botón modo oscuro */
.btn-modo-oscuro {
    font-size: 0.85rem;
    padding: 6px 16px;
    border-radius: 20px;
    border-color: #ddd;
    color: var(--clr-text);
    background: transparent;
    transition: all var(--transition);
}

.btn-modo-oscuro:hover {
    background-color: #222;
    color: #fff;
    border-color: #222;
}

/* ======================
   FOOTER
====================== */

footer {
    background-color: var(--clr-footer-bg);
    border-top: 1px solid #dde1e5;
}

.footer-title {
    color: #1a1a1a;
    font-family: var(--font-body);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    margin-bottom: 16px;
}

footer p,
footer small {
    color: var(--clr-footer-text);
    font-size: 0.9rem;
}

/* ENLACES DEL FOOTER */
.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: var(--clr-footer-text);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition), padding-left var(--transition);
}

.footer-links a .bi-chevron-right {
    font-size: 0.75rem;
    color: var(--clr-primary);
}

.footer-links a:hover {
    color: var(--clr-primary);
    padding-left: 4px;
}

/* CONTACTO ITEMS */
.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--clr-footer-text);
}

.footer-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: rgba(13,110,253,0.08);
    border-radius: 8px;
    color: var(--clr-primary);
    font-size: 0.9rem;
}

/* REDES SOCIALES */
.footer-redes {
    display: flex;
    gap: 10px;
    margin-top: 4px;
}

.footer-red {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: #fff;
    color: var(--clr-text);
    box-shadow: var(--shadow-sm);
    text-decoration: none;
    font-size: 1.1rem;
    transition: all var(--transition);
}

.footer-red:hover {
    background-color: var(--clr-primary);
    color: #fff;
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

/* MAPA DEL FOOTER */
.footer-mapa {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    margin-top: 8px;
}

.footer-mapa iframe {
    display: block;
}

/* LÍNEA DIVISORA */
.footer-hr {
    border: none;
    border-top: 1px solid #dde1e5;
    margin: 10px 0 18px;
}

/* ======================
   BOTÓN WHATSAPP FLOTANTE
====================== */

.btn-whatsapp {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 58px;
    height: 58px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #25c943;
    color: #fff;
    border-radius: 50%;
    font-size: 1.6rem;
    text-decoration: none;
    box-shadow: 0 4px 14px rgba(37,201,67,0.45);
    transition: all var(--transition);
    z-index: 999;
}

.btn-whatsapp:hover {
    background-color: #1da838;
    box-shadow: 0 6px 20px rgba(37,201,67,0.50);
    transform: scale(1.08);
    color: #fff;
}

/* Animación de pulso sutil */
.btn-whatsapp::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: rgba(37,201,67,0.4);
    animation: pulso 2s infinite;
    z-index: -1;
}

@keyframes pulso {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(1.55); opacity: 0; }
}

/* ======================
   RESPONSIVE
====================== */

@media (max-width: 576px) {
    .btn-whatsapp {
        width: 52px;
        height: 52px;
        font-size: 1.4rem;
        bottom: 20px;
        right: 20px;
    }
}