:root {
    --azul: #0e3272;
    --negro: #000000;
    --gris-suave: #f2f2f2;
    --font: 'Inter', 'Helvetica Neue', Arial, sans-serif;
}

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

body {
    background-color: #fff;
    color: var(--negro);
    font-family: var(--font);
    line-height: 1.4;
    -webkit-font-smoothing: antialiased;
}

/* --- NAVEGACIÓN --- */
nav {
    padding: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(10px);
    z-index: 100;
}

.brand { display: flex; align-items: center; }
.brand img { height: clamp(50px, 8vw, 75px); width: auto; display: block; }

/* --- HERO --- */
section.hero {
    padding: clamp(60px, 10vw, 120px) 30px;
    max-width: 1200px;
    margin: 0 auto;
}

h1 {
    font-size: clamp(3rem, 12vw, 10rem);
    line-height: 0.85;
    letter-spacing: -0.06em;
    text-transform: uppercase;
    font-weight: 800;
    margin-bottom: 40px;
}

.highlight { color: var(--azul); }

.description {
    font-size: clamp(1.1rem, 2vw, 1.8rem);
    max-width: 700px;
    margin-bottom: 60px;
    font-weight: 400;
    letter-spacing: -0.02em;
    color: #333;
}

/* --- BOTÓN SOS --- */
.btn-sos {
    background-color: var(--azul);
    color: white;
    padding: 20px 60px;
    font-size: 1.5rem;
    font-weight: 800;
    border: none;
    cursor: pointer;
    text-transform: uppercase;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.btn-sos:hover {
    background-color: var(--negro);
    transform: scale(1.05);
}

/* --- FEATURES --- */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    border-top: 1px solid #eee;
}

.feature-item {
    padding: 60px 30px;
    border-bottom: 1px solid #eee;
}

@media (min-width: 768px) {
    .feature-item:not(:last-child) { border-right: 1px solid #eee; }
}

.feature-item h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--azul);
    margin-bottom: 20px;
    font-family: monospace;
    letter-spacing: 1px;
}

.feature-item p { font-size: 1.1rem; font-weight: 500; letter-spacing: -0.01em; }

/* --- MODAL FORMULARIO --- */
.modal {
    display: none;
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: #fff;
    z-index: 1000;
    padding: 40px;
    overflow-y: auto;
}

.modal-inner { max-width: 500px; margin: 40px auto; }

.close-modal {
    position: absolute; top: 30px; right: 30px;
    background: none; border: none; font-size: 2rem; cursor: pointer;
}

.modal-inner h2 {
    font-size: 2.5rem;
    letter-spacing: -2px;
    margin-bottom: 40px;
    text-transform: uppercase;
    font-weight: 800;
}

form input,
form textarea {
    width: 100%;
    padding: 15px 0;
    margin-bottom: 25px;
    border: none;
    border-bottom: 2px solid #000;
    font-size: 1.1rem;
    font-family: inherit;
    outline: none;
    border-radius: 0;
    background: transparent;
}

form input:focus { border-bottom-color: var(--azul); }

.btn-send {
    background: var(--azul);
    color: white;
    border: none;
    padding: 20px 40px;
    font-weight: bold;
    text-transform: uppercase;
    cursor: pointer;
    width: 100%;
    font-size: 1rem;
    font-family: inherit;
    transition: background 0.3s;
    margin-top: 10px;
}

.btn-send:hover { background: var(--negro); }
.btn-send:disabled { background: #ccc; cursor: not-allowed; }

#result {
    margin-top: 25px;
    font-family: monospace;
    font-weight: bold;
    text-align: center;
    font-size: 0.9rem;
    text-transform: uppercase;
}

/* --- FOOTER --- */
footer {
    padding: 100px 30px;
    text-align: center;
    background: var(--gris-suave);
}

.footer-eyebrow {
    margin-bottom: 20px;
    text-transform: uppercase;
    font-size: 0.7rem;
    font-weight: 800;
    opacity: 0.65;
    letter-spacing: 2px;
}

.contact-mail {
    font-size: clamp(1.5rem, 5vw, 4rem);
    font-weight: 800;
    text-decoration: none;
    color: var(--negro);
    letter-spacing: -0.04em;
    transition: color 0.3s;
    display: block;
}

.contact-mail:hover { color: var(--azul); }

.footer-legal { margin-top: 80px; font-size: 0.7rem; opacity: 0.7; }

.footer-links { margin-top: 60px; font-size: 0.85rem; line-height: 2; }
.footer-links a { color: var(--negro); }
.footer-links a:hover { color: var(--azul); }

/* --- ACCESIBILIDAD --- */
.visually-hidden {
    position: absolute !important;
    width: 1px; height: 1px;
    margin: -1px; padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

:focus-visible { outline: 3px solid var(--azul); outline-offset: 3px; }

/* --- FORMULARIO: RGPD --- */
.info-rgpd {
    font-size: 0.75rem;
    line-height: 1.5;
    color: #444;
    margin: 0 0 18px;
}

.info-rgpd a,
.check a { color: var(--azul); }

form .check {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 20px;
    font-size: 0.95rem;
    cursor: pointer;
}

form .check input {
    width: 22px;
    height: 22px;
    flex: none;
    margin: 0;
    padding: 0;
    border: none;
    accent-color: var(--azul);
}