/* ============================================================
 * STYLES.CSS — yesoscordoba.es
 * Mobile-first, CSS vanilla, diseño moderno
 * ============================================================ */

/* ============================================================
 * 1. VARIABLES CSS
 * ============================================================ */
:root {
    /* Colores */
    --color-principal: #5C5247;
    --color-principal-claro: #7B6F62;
    --color-principal-oscuro: #3A3330;
    --color-fondo-yeso: #E8E0D4;
    --color-fondo-yeso-suave: #F3EFE9;
    --color-secundario: #1A1A1A;
    --color-texto: #333333;
    --color-texto-claro: #666666;
    --color-texto-mas-claro: #999999;
    --color-fondo: #FFFFFF;
    --color-fondo-claro: #F8F8F8;
    --color-borde: #E5E5E5;
    --color-whatsapp: #25D366;
    --color-whatsapp-hover: #1FA855;
    --color-error: #C53030;
    --color-error-bg: #FFF5F5;
    --color-exito: #2F855A;
    --color-exito-bg: #F0FFF4;

    /* Tipografía */
    --fuente-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --fuente-titulos: var(--fuente-base);
    --tamano-base: 16px;
    --tamano-pequeno: 14px;
    --tamano-tiny: 12px;
    --tamano-h1: clamp(2rem, 5vw, 3.25rem);
    --tamano-h2: clamp(1.5rem, 3.5vw, 2.25rem);
    --tamano-h3: clamp(1.15rem, 2vw, 1.5rem);
    --linea-altura: 1.65;
    --linea-titulos: 1.2;

    /* Espaciado */
    --espacio-xs: 0.5rem;
    --espacio-sm: 1rem;
    --espacio-md: 1.5rem;
    --espacio-lg: 3rem;
    --espacio-xl: 5rem;
    --espacio-2xl: 8rem;

    /* Layout */
    --max-ancho: 1200px;
    --max-ancho-texto: 720px;

    /* Bordes y sombras */
    --radio-sm: 6px;
    --radio-md: 10px;
    --radio-lg: 16px;
    --radio-xl: 24px;
    --sombra-xs: 0 1px 2px rgba(0,0,0,0.04);
    --sombra-sm: 0 2px 8px rgba(0,0,0,0.06);
    --sombra-md: 0 4px 16px rgba(0,0,0,0.08);
    --sombra-lg: 0 8px 32px rgba(0,0,0,0.12);
    --sombra-xl: 0 16px 48px rgba(0,0,0,0.16);

    /* Transiciones */
    --transicion: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transicion-lenta: 0.35s cubic-bezier(0.4, 0, 0.2, 1);

    /* Z-index */
    --z-base: 1;
    --z-header: 100;
    --z-flotante: 999;
}

/* ============================================================
 * 2. RESET + BASE
 * ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font-family: var(--fuente-base);
    font-size: var(--tamano-base);
    line-height: var(--linea-altura);
    color: var(--color-texto);
    background: var(--color-fondo);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img, picture, video, svg { max-width: 100%; height: auto; display: block; }

a { color: var(--color-principal); text-decoration: none; transition: color var(--transicion); }
a:hover { color: var(--color-principal-oscuro); }

h1, h2, h3, h4 {
    color: var(--color-secundario);
    line-height: var(--linea-titulos);
    margin: 0 0 var(--espacio-sm);
    font-weight: 700;
    letter-spacing: -0.02em;
}

h1 { font-size: var(--tamano-h1); }
h2 { font-size: var(--tamano-h2); }
h3 { font-size: var(--tamano-h3); }

p { margin: 0 0 var(--espacio-sm); }

ul { padding: 0; margin: 0; list-style: none; }

:focus-visible {
    outline: 2px solid var(--color-principal);
    outline-offset: 3px;
    border-radius: 2px;
}

::selection {
    background: var(--color-principal);
    color: white;
}

/* ============================================================
 * 3. CONTENEDOR
 * ============================================================ */
.contenedor {
    max-width: var(--max-ancho);
    margin: 0 auto;
    padding: 0 var(--espacio-md);
}

/* ============================================================
 * 4. HEADER
 * ============================================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    background: var(--color-fondo);
    border-bottom: 1px solid var(--color-borde);
    transition: box-shadow var(--transicion-lenta);
}

.site-header.scrolled {
    box-shadow: var(--sombra-sm);
}

.header-inner {
    max-width: var(--max-ancho);
    margin: 0 auto;
    padding: 0 var(--espacio-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--espacio-xs);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--color-secundario);
    letter-spacing: -0.02em;
    white-space: nowrap;
    position: relative;
    z-index: 101;
    text-decoration: none;
}

.logo-img {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    object-fit: contain;
    background: none;
}

.logo-texto {
    color: var(--color-secundario);
}

.logo:hover { color: var(--color-principal); text-decoration: none; }
.logo:hover .logo-texto { color: var(--color-principal); }

/* Hamburguesa */
.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    position: relative;
    z-index: 101;
    border-radius: var(--radio-sm);
}

.hamburger-line {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-secundario);
    border-radius: 2px;
    transition: all 0.3s ease;
    transform-origin: center;
}

.hamburger[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.hamburger[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
.hamburger[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Nav principal — overlay fullscreen en móvil */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    background: var(--color-fondo);
    z-index: 100;
    padding: 80px var(--espacio-md) var(--espacio-lg);
    overflow-y: auto;
    visibility: hidden;
    opacity: 0;
    transition: visibility 0s 0.3s, opacity 0.3s ease;
}

.main-nav.open {
    visibility: visible;
    opacity: 1;
    transition: visibility 0s 0s, opacity 0.3s ease;
}

.nav-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    max-width: 400px;
}

.nav-item a,
.nav-item .dropdown-toggle {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 16px var(--espacio-sm);
    color: var(--color-secundario);
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 500;
    border-radius: var(--radio-sm);
    background: none;
    border: none;
    text-align: left;
    font-family: inherit;
    cursor: pointer;
    transition: background var(--transicion);
}

.nav-item a:hover,
.nav-item .dropdown-toggle:hover {
    background: var(--color-fondo-claro);
    color: var(--color-principal);
}

/* Dropdown */
.dropdown-toggle {
    justify-content: space-between;
}

.arrow-down {
    font-size: 0.7rem;
    transition: transform 0.3s ease;
    opacity: 0.4;
    margin-left: var(--espacio-xs);
}

.dropdown-toggle[aria-expanded="true"] .arrow-down {
    transform: rotate(180deg);
    opacity: 1;
}

.dropdown-menu {
    display: none;
    margin: 2px 0 4px;
    padding: 4px 0;
    background: var(--color-fondo-claro);
    border-radius: var(--radio-sm);
}

.dropdown-menu.open { display: block; }

.dropdown-menu li a {
    padding: 14px var(--espacio-sm) 14px 40px;
    font-size: 0.95rem;
    border-radius: 0;
    display: block;
}

/* CTA en nav */
.nav-cta {
    margin-top: var(--espacio-sm);
}

.nav-cta .btn-cta-nav {
    display: flex !important;
    background: var(--color-principal) !important;
    color: white !important;
    text-align: center;
    justify-content: center;
    font-weight: 600;
    padding: 16px var(--espacio-md) !important;
    border-radius: var(--radio-md) !important;
    transition: all var(--transicion);
}

.nav-cta .btn-cta-nav:hover {
    background: var(--color-principal-oscuro) !important;
    color: white !important;
}

/* Teléfono header */
.header-phone {
    display: none;
    align-items: center;
    gap: 8px;
    color: var(--color-secundario);
    font-weight: 600;
    font-size: 0.95rem;
    white-space: nowrap;
    padding: 8px 16px;
    border-radius: var(--radio-md);
    border: 2px solid var(--color-borde);
    transition: all var(--transicion);
    position: relative;
    z-index: 101;
}

.header-phone:hover {
    border-color: var(--color-principal);
    color: var(--color-principal);
    text-decoration: none;
}

.header-phone::before {
    content: '';
    width: 18px;
    height: 18px;
    background: var(--color-whatsapp);
    border-radius: 50%;
    flex-shrink: 0;
}

/* ============================================================
 * 5. HERO
 * ============================================================ */
.hero {
    background: linear-gradient(175deg, var(--color-fondo-yeso) 0%, var(--color-fondo-yeso-suave) 60%, var(--color-fondo) 100%);
    padding: var(--espacio-xl) 0 var(--espacio-lg);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 20%, rgba(92,82,71,0.04) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(92,82,71,0.03) 0%, transparent 50%);
    pointer-events: none;
}

.hero h1 {
    margin-bottom: var(--espacio-sm);
    position: relative;
}

.hero h1 .acento {
    color: var(--color-principal);
}

.hero-subtitulo {
    max-width: 640px;
    margin: 0 auto var(--espacio-lg);
    color: var(--color-texto-claro);
    font-size: 1.15rem;
    line-height: 1.7;
    position: relative;
}

.hero picture,
.hero img {
    margin: var(--espacio-lg) auto;
    border-radius: var(--radio-lg);
    box-shadow: var(--sombra-lg);
    max-width: 800px;
    position: relative;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--espacio-sm);
    align-items: center;
    position: relative;
}

/* Trust strip */
.trust-strip {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--espacio-sm);
    max-width: 880px;
    margin: 0 auto;
    position: relative;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--espacio-sm);
    text-align: left;
    padding: var(--espacio-sm);
    background: rgba(255,255,255,0.6);
    border-radius: var(--radio-md);
}

.trust-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radio-sm);
    background: var(--color-principal);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: white;
    font-size: 1.2rem;
}

.trust-text strong {
    display: block;
    font-size: 0.85rem;
    color: var(--color-secundario);
    line-height: 1.3;
}

.trust-text span {
    font-size: 0.75rem;
    color: var(--color-texto-claro);
}

/* ============================================================
 * 6. SECCIONES
 * ============================================================ */
.seccion-blanca {
    background: var(--color-fondo);
    padding: var(--espacio-xl) 0;
}

.seccion-yeso {
    background: var(--color-fondo-yeso);
    padding: var(--espacio-xl) 0;
}

.seccion-servicios {
    background: var(--color-fondo-claro);
    padding: var(--espacio-xl) 0;
}

.seccion-titulo {
    text-align: center;
    margin-bottom: var(--espacio-sm);
}

.seccion-subtitulo {
    text-align: center;
    color: var(--color-texto-claro);
    max-width: var(--max-ancho-texto);
    margin: 0 auto var(--espacio-lg);
    font-size: 1.05rem;
}

.seccion-texto {
    max-width: var(--max-ancho-texto);
    margin: 0 auto var(--espacio-md);
    color: var(--color-texto);
    font-size: 1.02rem;
}

/* Divider decorativo */
.divider {
    width: 48px;
    height: 4px;
    background: var(--color-principal);
    border-radius: 2px;
    margin: var(--espacio-xs) auto var(--espacio-lg);
    opacity: 0.5;
}

/* ============================================================
 * 7. GRID DE SERVICIOS
 * ============================================================ */
.grid-servicios {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--espacio-md);
}

.servicio-card {
    background: var(--color-fondo);
    border: 1px solid var(--color-borde);
    border-radius: var(--radio-lg);
    overflow: hidden;
    transition: all var(--transicion-lenta);
    text-decoration: none;
    color: var(--color-secundario);
    display: flex;
    flex-direction: column;
    position: relative;
}

.servicio-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--sombra-lg);
    border-color: transparent;
    text-decoration: none;
    color: var(--color-secundario);
}

.servicio-card picture,
.servicio-card img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    transition: transform var(--transicion-lenta);
}

.servicio-card:hover img {
    transform: scale(1.04);
}

.servicio-card-body {
    padding: var(--espacio-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.servicio-card-body h3 {
    font-size: 1.15rem;
    margin-bottom: var(--espacio-xs);
    transition: color var(--transicion);
}

.servicio-card:hover .servicio-card-body h3 {
    color: var(--color-principal);
}

.servicio-card-body p {
    color: var(--color-texto-claro);
    font-size: 0.9rem;
    margin: 0;
    flex: 1;
}

.servicio-card .card-arrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: var(--espacio-sm);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-principal);
    opacity: 0;
    transform: translateX(-8px);
    transition: all var(--transicion-lenta);
}

.servicio-card:hover .card-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* ============================================================
 * 8. BOTONES
 * ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    background: var(--color-principal);
    color: white;
    border: none;
    border-radius: var(--radio-md);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transicion);
    min-height: 48px;
    font-family: inherit;
    letter-spacing: -0.01em;
}

.btn:hover {
    background: var(--color-principal-oscuro);
    transform: translateY(-1px);
    box-shadow: var(--sombra-md);
    text-decoration: none;
    color: white;
}

.btn:active { transform: translateY(0) scale(0.98); }

.btn-grande {
    padding: 16px 32px;
    font-size: 1.1rem;
    border-radius: var(--radio-lg);
    min-height: 56px;
}

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

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

.btn-llamar {
    background: var(--color-secundario);
    border: 2px solid var(--color-secundario);
}

.btn-llamar:hover { background: #000; }

.btn-presupuesto {
    background: var(--color-principal);
}

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

.btn-secundario:hover {
    background: var(--color-principal);
    color: white;
}

/* ============================================================
 * 9. TESTIMONIOS
 * ============================================================ */
.seccion-testimonios {
    padding: var(--espacio-xl) 0;
    background: var(--color-fondo);
}

.seccion-testimonios .seccion-titulo {
    text-align: center;
    margin-bottom: var(--espacio-xs);
}

.grid-testimonios {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--espacio-md);
}

.testimonio-card {
    background: var(--color-fondo);
    border: 1px solid var(--color-borde);
    border-radius: var(--radio-lg);
    padding: var(--espacio-lg);
    transition: all var(--transicion);
    position: relative;
}

.testimonio-card:hover {
    box-shadow: var(--sombra-md);
    border-color: transparent;
}

.testimonio-card::before {
    content: '"';
    position: absolute;
    top: var(--espacio-sm);
    right: var(--espacio-md);
    font-size: 4rem;
    line-height: 1;
    color: var(--color-fondo-yeso);
    font-family: Georgia, serif;
    pointer-events: none;
}

.testimonio-estrellas {
    color: #F6C343;
    font-size: 1rem;
    margin-bottom: var(--espacio-sm);
    letter-spacing: 2px;
}

.testimonio-texto {
    font-style: italic;
    color: var(--color-texto);
    margin-bottom: var(--espacio-md);
    font-size: 0.95rem;
    position: relative;
}

.testimonio-autor {
    font-weight: 700;
    color: var(--color-secundario);
    font-size: 0.95rem;
}

.testimonio-info {
    font-size: var(--tamano-pequeno);
    color: var(--color-texto-claro);
    margin-top: 2px;
}

/* ============================================================
 * 10. FORMULARIO
 * ============================================================ */
.form-presupuesto {
    max-width: 620px;
    margin: 0 auto;
    padding: var(--espacio-lg);
    background: var(--color-fondo);
    border-radius: var(--radio-xl);
    box-shadow: var(--sombra-sm);
    border: 1px solid var(--color-borde);
}

.campo { margin-bottom: var(--espacio-md); }

.campo label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-secundario);
}

.campo input,
.campo select,
.campo textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--color-borde);
    border-radius: var(--radio-md);
    font-size: 1rem;
    font-family: inherit;
    background: var(--color-fondo);
    transition: all var(--transicion);
    min-height: 48px;
    color: var(--color-texto);
}

.campo input:hover,
.campo select:hover,
.campo textarea:hover {
    border-color: #ccc;
}

.campo input:focus,
.campo select:focus,
.campo textarea:focus {
    outline: none;
    border-color: var(--color-principal);
    box-shadow: 0 0 0 4px rgba(92, 82, 71, 0.1);
}

.campo textarea {
    min-height: 140px;
    resize: vertical;
}

.campo select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23666' fill='none' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.campo-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--espacio-sm);
    margin-bottom: var(--espacio-md);
}

.campo-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    accent-color: var(--color-principal);
    flex-shrink: 0;
}

.campo-checkbox label {
    font-size: 0.9rem;
    color: var(--color-texto-claro);
}

.campo-checkbox label a {
    font-weight: 600;
}

.honeypot {
    position: absolute;
    left: -9999px;
    opacity: 0;
    pointer-events: none;
}

.estado-exito,
.estado-error {
    padding: var(--espacio-md);
    border-radius: var(--radio-md);
    margin-top: var(--espacio-md);
    text-align: center;
    font-weight: 500;
}

.estado-exito {
    background: var(--color-exito-bg);
    color: var(--color-exito);
    border: 1px solid #c6f6d5;
}

.estado-error {
    background: var(--color-error-bg);
    color: var(--color-error);
    border: 1px solid #fed7d7;
}

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: girar 0.7s linear infinite;
}

@keyframes girar { to { transform: rotate(360deg); } }

/* ============================================================
 * 11. AVISO IMPORTANTE + FAQ + LISTA TRABAJOS
 * ============================================================ */
.aviso-importante {
    background: #FFFBEB;
    border-left: 4px solid #D69E2E;
    padding: var(--espacio-md);
    border-radius: 0 var(--radio-sm) var(--radio-sm) 0;
    margin-bottom: var(--espacio-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--espacio-sm);
    font-size: 0.95rem;
    color: var(--color-secundario);
}

.aviso-importante::before {
    content: '!';
    width: 28px;
    height: 28px;
    background: #D69E2E;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.faq-lista details {
    border-bottom: 1px solid var(--color-borde);
    padding: var(--espacio-sm) 0;
    transition: all var(--transicion);
}

.faq-lista summary {
    font-weight: 600;
    cursor: pointer;
    padding: var(--espacio-sm) 0;
    color: var(--color-secundario);
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--espacio-sm);
    font-size: 1.02rem;
}

.faq-lista summary::-webkit-details-marker { display: none; }

.faq-lista summary::before {
    content: '+';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--color-fondo-yeso);
    border-radius: var(--radio-sm);
    color: var(--color-principal);
    font-weight: 700;
    font-size: 1.1rem;
    flex-shrink: 0;
    transition: all var(--transicion);
}

.faq-lista details[open] summary::before {
    content: '−';
    background: var(--color-principal);
    color: white;
}

.faq-lista details p {
    padding: var(--espacio-sm) 0 var(--espacio-sm) 40px;
    margin: 0;
    color: var(--color-texto-claro);
}

.lista-trabajos {
    max-width: var(--max-ancho-texto);
    margin: var(--espacio-md) auto 0;
}

.lista-trabajos li {
    padding: 10px 0 10px 28px;
    position: relative;
    color: var(--color-texto);
    font-size: 0.98rem;
}

.lista-trabajos li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 17px;
    width: 18px;
    height: 2px;
    background: var(--color-principal);
    border-radius: 2px;
}

.lista-trabajos li::after {
    content: '';
    position: absolute;
    left: 7px;
    top: 16px;
    width: 2px;
    height: 6px;
    background: var(--color-principal);
    border-radius: 2px;
    transform: rotate(-45deg);
}

/* ============================================================
 * 12. BOTONES FLOTANTES
 * ============================================================ */
.btn-whatsapp-flotante {
    position: fixed;
    bottom: var(--espacio-lg);
    right: var(--espacio-md);
    background: var(--color-whatsapp);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--sombra-lg);
    z-index: var(--z-flotante);
    transition: all var(--transicion);
    animation: float 3s ease-in-out infinite;
}

.btn-whatsapp-flotante:hover {
    transform: scale(1.12);
    box-shadow: var(--sombra-xl);
    color: white;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.btn-call-flotante {
    position: fixed;
    bottom: var(--espacio-lg);
    left: var(--espacio-md);
    background: var(--color-principal);
    color: white;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--sombra-md);
    z-index: var(--z-flotante);
    transition: all var(--transicion);
}

.btn-call-flotante:hover {
    transform: scale(1.12);
    color: white;
}

.mobile-only { display: flex; }

/* ============================================================
 * 13. FOOTER
 * ============================================================ */
.site-footer {
    background: var(--color-secundario);
    color: rgba(255,255,255,0.7);
    padding: var(--espacio-xl) 0 var(--espacio-md);
    margin-top: var(--espacio-xl);
}

.footer-inner {
    max-width: var(--max-ancho);
    margin: 0 auto;
    padding: 0 var(--espacio-md);
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--espacio-lg);
}

.footer-titulo {
    font-weight: 700;
    color: white;
    margin-bottom: var(--espacio-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.8rem;
}

.footer-nombre {
    font-weight: 700;
    font-size: 1.2rem;
    color: white;
    margin-bottom: var(--espacio-xs);
}

.footer-actividad {
    margin-bottom: var(--espacio-sm);
    font-size: 0.9rem;
}

.footer-telefono a,
.footer-whatsapp a {
    color: rgba(255,255,255,0.8);
    transition: color var(--transicion);
}

.footer-telefono a:hover,
.footer-whatsapp a:hover {
    color: white;
}

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

.footer-links a {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    transition: color var(--transicion);
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    max-width: var(--max-ancho);
    margin: var(--espacio-lg) auto 0;
    padding: var(--espacio-md) var(--espacio-md) 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.4);
}

.footer-bottom p { margin: 0; }

/* ============================================================
 * 14. HOW IT WORKS STEPS
 * ============================================================ */
.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--espacio-md);
    text-align: center;
}

.step-card {
    padding: var(--espacio-md);
}

.step-number {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-principal);
    color: white;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: var(--espacio-sm);
    box-shadow: 0 4px 12px rgba(92,82,71,0.3);
}

.step-card h3 {
    margin-bottom: var(--espacio-xs);
    font-size: 1.1rem;
}

.step-card p {
    color: var(--color-texto-claro);
    font-size: 0.9rem;
    margin: 0;
}

/* ============================================================
 * 15. BREAKPOINTS
 * ============================================================ */

/* >= 640px */
@media (min-width: 640px) {
    .trust-strip {
        grid-template-columns: 1fr 1fr;
    }

    .hero-cta {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
    }

    .steps-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* >= 768px */
@media (min-width: 768px) {
    .contenedor { padding: 0 var(--espacio-lg); }

    .hero {
        padding: var(--espacio-2xl) 0 var(--espacio-xl);
    }

    .hero-subtitulo { font-size: 1.2rem; }

    .grid-servicios {
        grid-template-columns: 1fr 1fr;
    }

    .grid-testimonios {
        grid-template-columns: 1fr 1fr;
    }

    .footer-inner {
        grid-template-columns: 2fr 1fr 1fr;
        padding: 0 var(--espacio-lg);
    }

    .btn-whatsapp-flotante {
        width: 64px;
        height: 64px;
        bottom: var(--espacio-lg);
        right: var(--espacio-lg);
    }

    .btn-call-flotante {
        bottom: var(--espacio-lg);
        left: var(--espacio-lg);
    }

    .steps-grid {
        grid-template-columns: 1fr 1fr 1fr 1fr;
    }

    .trust-strip {
        grid-template-columns: 1fr 1fr 1fr 1fr;
    }
}

/* >= 1024px */
@media (min-width: 1024px) {
    .hamburger { display: none; }

    .site-header {
        background: rgba(255,255,255,0.85);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom-color: transparent;
    }

    .main-nav {
        position: static;
        width: auto;
        height: auto;
        padding: 0;
        background: transparent;
        visibility: visible;
        opacity: 1;
        overflow: visible;
    }

    .nav-list {
        flex-direction: row;
        align-items: center;
        gap: 4px;
    }

    .nav-item a,
    .nav-item .dropdown-toggle {
        padding: 8px 14px;
        font-size: 0.9rem;
        border-radius: var(--radio-md);
    }

    /* Dropdown escritorio */
    .dropdown { position: relative; }

    .dropdown-menu {
        display: none;
        position: absolute;
        top: calc(100% + 8px);
        left: 0;
        background: var(--color-fondo);
        box-shadow: var(--sombra-lg);
        min-width: 260px;
        border-radius: var(--radio-md);
        border: 1px solid var(--color-borde);
        padding: var(--espacio-xs);
        z-index: 10;
    }

    .dropdown-menu.open,
    .dropdown:hover .dropdown-menu {
        display: block;
        animation: fadeIn 0.2s ease;
    }

    @keyframes fadeIn {
        from { opacity: 0; transform: translateY(-4px); }
        to { opacity: 1; transform: translateY(0); }
    }

    .dropdown-menu li a {
        padding: 10px 14px;
        border-radius: var(--radio-sm);
        font-size: 0.9rem;
    }

    .dropdown-menu li a:hover {
        background: var(--color-fondo-claro);
    }

    .nav-cta .btn-cta-nav {
        margin: 0 0 0 8px;
        padding: 10px 18px !important;
        font-size: 0.9rem;
    }

    .desktop-only { display: flex; }
    .header-phone { display: flex; }

    .header-inner {
        height: 72px;
        flex-wrap: nowrap;
    }

    .logo { flex-shrink: 0; margin-right: var(--espacio-md); }

    .grid-servicios {
        grid-template-columns: 1fr 1fr 1fr;
    }

    .grid-testimonios {
        grid-template-columns: 1fr 1fr 1fr;
    }

    .mobile-only { display: none; }

    .seccion-texto { font-size: 1.05rem; }
}

/* ============================================================
 * 16. PREFERS-REDUCED-MOTION
 * ============================================================ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
}

/* ============================================================
 * 17. PRINT
 * ============================================================ */
@media print {
    .site-header, .site-footer, .btn-whatsapp-flotante, .btn-call-flotante,
    .hero-cta, nav { display: none !important; }

    body { font-size: 12pt; color: #000; background: #fff; }
    a { color: #000; text-decoration: underline; }
}