/* ============================================================
   Grupo Invosa — style.css
   Mobile-First | CSS Custom Properties | BEM Methodology
   ============================================================ */

/* ── 1. CUSTOM PROPERTIES (Design Tokens) ─────────────────── */
:root {
    --primary:       #0094d8;
    --primary-dark:  #007ab8;
    --secondary:     #006085;
    --secondary-dark:#004a68;
    --neutral:       #000000;
    --neutral-soft:  #1a1a2e;
    --text-body:     #2d3748;
    --text-muted:    #718096;
    --bg:            #f8fafc;
    --bg-dark:       #0d1b2a;
    --white:         #ffffff;
    --border:        #e2e8f0;
    --shadow-sm:     0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
    --shadow-md:     0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
    --shadow-lg:     0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);
    --shadow-xl:     0 20px 25px rgba(0,0,0,.1), 0 10px 10px rgba(0,0,0,.04);
    --radius-sm:     6px;
    --radius-md:     12px;
    --radius-lg:     20px;
    --radius-full:   9999px;
    --font-sans:     'Inter', system-ui, -apple-system, sans-serif;
    --transition:    all .25s cubic-bezier(.4,0,.2,1);
    --max-width:     1200px;
    --section-py:    clamp(3rem, 8vw, 6rem);
}

/* ── 2. RESET & BASE ──────────────────────────────────────── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg);
    color: var(--text-body);
    line-height: 1.7;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover { color: var(--primary-dark); }

ul { list-style: none; }

/* ── 3. TYPOGRAPHY ────────────────────────────────────────── */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--neutral-soft);
}

h1 { font-size: clamp(1.8rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.6rem); }

p { margin-bottom: 1rem; }

.text--primary  { color: var(--primary); }
.text--white    { color: var(--white); }
.text--muted    { color: var(--text-muted); }
.text--center   { text-align: center; }
.font--bold     { font-weight: 700; }

/* ── 4. LAYOUT UTILITIES ──────────────────────────────────── */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin-inline: auto;
    padding-inline: 1.25rem;
}

.section {
    padding-block: var(--section-py);
}

.section--dark {
    background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--secondary) 100%);
    color: var(--white);
}

.section--dark h2,
.section--dark h3 {
    color: var(--white);
}

.section--neutral {
    background-color: var(--neutral-soft);
    color: var(--white);
}

.grid {
    display: grid;
    gap: 1.5rem;
}

.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: 1fr; }

.flex        { display: flex; }
.flex--center { align-items: center; justify-content: center; }
.flex--between{ align-items: center; justify-content: space-between; }
.flex--gap    { gap: 1rem; }
.flex--wrap   { flex-wrap: wrap; }

/* ── 5. BUTTONS ───────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .75rem 1.75rem;
    border-radius: var(--radius-full);
    font-size: .95rem;
    font-weight: 600;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
    text-decoration: none;
}

.btn--primary {
    background-color: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.btn--primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 148, 216, .35);
}

.btn--outline {
    background-color: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn--outline:hover {
    background-color: var(--white);
    color: var(--primary);
}

.btn--sm {
    padding: .5rem 1.25rem;
    font-size: .85rem;
}

/* ── 6. HEADER & NAVIGATION ───────────────────────────────── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--white);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-block: 1.1rem;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: .75rem;
    text-decoration: none;
}

.nav__logo-img {
    height: 58px;
    width: auto;
    max-width: 220px;
    object-fit: contain;
    display: block;
}

.footer__logo-img {
    height: 54px;
    width: auto;
    max-width: 210px;
    object-fit: contain;
    display: block;
    /* Logo sobre fondo oscuro — quitar si el .webp ya tiene versión clara */
    filter: brightness(0) invert(1);
}

/* ── RESPONSIVE — MOBILE (≤767px) ────────────────────────── */
@media (max-width: 767px) {
    /* Nav */
    .nav__logo-img {
        height: 42px;
        max-width: 155px;
    }

    .nav {
        padding-block: .85rem;
    }

    /* Hero */
    .hero {
        min-height: auto;
        padding-bottom: 3rem;
    }

    .hero::after {
        height: 50px;
    }

    .hero__layout {
        flex-direction: column;
        text-align: center;
        padding-block: clamp(2rem, 5vw, 3rem);
        gap: 1.5rem;
    }

    .hero__badge {
        margin-bottom: 1rem;
        font-size: .72rem;
    }

    .hero__title {
        font-size: clamp(1.6rem, 6vw, 2.2rem);
        margin-bottom: 1rem;
    }

    .hero__text {
        font-size: .92rem;
        margin-bottom: 1.75rem;
        margin-inline: auto;
    }

    .hero__actions {
        justify-content: center;
    }

    .hero__actions .btn {
        padding: .65rem 1.25rem;
        font-size: .85rem;
    }

    .hero__stats {
        justify-content: center;
        gap: 1.5rem;
        margin-top: 2rem;
        padding-top: 1.5rem;
        margin-bottom: 2.5rem;
    }

    .hero__stat-number {
        font-size: 1.5rem;
    }

    .hero__stat-label {
        font-size: .7rem;
    }

    /* Sección headers */
    .section-header {
        margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
    }

    .section-header__text {
        font-size: .92rem;
    }

    /* Emisoras */
    .emisoras__grid {
        grid-template-columns: 1fr 1fr !important;
        gap: .75rem !important;
    }

    .emisora-card__cover {
        aspect-ratio: 2 / 1 !important;
    }

    .emisora-card__slogan {
        font-size: .75rem !important;
        margin-bottom: .35rem !important;
    }

    .emisora-card__body {
        padding: .75rem !important;
    }

    .emisora-card__ciudad {
        font-size: .72rem !important;
        margin-bottom: .75rem !important;
    }

    .emisora-card__live {
        padding: .55rem !important;
        font-size: .75rem !important;
        gap: .4rem !important;
    }

    .emisora-card__live-dot {
        width: 8px !important;
        height: 8px !important;
    }

    /* Alcance */
    .alcance__grid {
        gap: 1.5rem;
    }

    .alcance__feature {
        margin-bottom: 1rem;
    }

    .alcance__icon {
        width: 42px;
        height: 42px;
    }

    .alcance__number {
        font-size: clamp(2.5rem, 10vw, 3.5rem);
    }

    /* Historia / Quienes Somos */
    .historia__grid {
        gap: 2rem;
    }

    .historia__timeline {
        padding-left: 2.25rem;
    }

    .historia__item {
        padding-bottom: 1.75rem;
    }

    .historia__item::before {
        left: -2.25rem;
        width: 16px;
        height: 16px;
    }

    .historia__title {
        font-size: .95rem;
    }

    .historia__text {
        font-size: .85rem;
    }

    .historia__galeria {
        flex-direction: row !important;
        justify-content: center;
        align-items: center;
        gap: .75rem !important;
        position: static;
    }

    .historia__galeria-img {
        width: 22% !important;
        max-width: 70px !important;
    }

    /* Misión y Visión */
    .mv-card {
        padding: 1.75rem 1.5rem;
    }

    .mv-card__title {
        font-size: 1.05rem;
    }

    .mv-card__text {
        font-size: .85rem;
    }

    /* Valores */
    .valores-grid {
        grid-template-columns: 1fr 1fr !important;
        gap: .75rem !important;
    }

    .valor-card {
        padding: 1.15rem .85rem !important;
        text-align: left !important;
        display: flex !important;
        flex-direction: column;
        gap: .5rem;
    }

    .valor-card__number {
        display: none !important;
    }

    .valor-card__icon {
        width: 36px !important;
        height: 36px !important;
        margin: 0 !important;
        border-radius: 8px !important;
    }

    .valor-card__icon svg {
        width: 18px;
        height: 18px;
    }

    .valor-card__title {
        font-size: .8rem !important;
        margin-bottom: 0 !important;
    }

    .valor-card__text {
        font-size: .72rem !important;
        line-height: 1.5 !important;
    }

    /* Contacto */
    .contacto__cards {
        gap: .75rem;
    }

    .contacto__card {
        padding: 1.25rem 1rem;
    }

    .contacto__card-icon {
        width: 44px;
        height: 44px;
    }

    .contacto__card-value {
        font-size: .92rem;
    }

    .contacto__context-title {
        font-size: clamp(1.2rem, 5vw, 1.6rem);
    }

    .contacto__form {
        padding: 1.5rem 1.25rem;
    }

    .contacto__form-row {
        grid-template-columns: 1fr !important;
    }

    /* Footer */
    .footer__grid {
        text-align: center !important;
        justify-items: center;
    }

    .footer__col-nav {
        display: none !important;
    }

    .footer__logo-img {
        height: 44px;
        margin: 0 auto;
    }

    .footer__brand-desc {
        text-align: center;
    }

    .footer__social {
        justify-content: center !important;
    }

    .footer__bottom {
        gap: 1rem;
    }

    .footer__legal {
        gap: .75rem;
    }

    /* Modal */
    .modal__content {
        padding: 1.75rem 1.25rem;
        max-height: 80vh;
    }

    .modal__table {
        font-size: .75rem;
    }

    .modal__table th,
    .modal__table td {
        padding: .45rem .5rem;
    }

    /* Back to top */
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 40px;
        height: 40px;
    }
}

.nav__logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.nav__logo-name {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--secondary);
    letter-spacing: -.5px;
}

.nav__logo-tagline {
    font-size: .65rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: .5px;
}

.nav__links {
    display: none;
    gap: .25rem;
}

.nav__link {
    padding: .5rem .85rem;
    border-radius: var(--radius-sm);
    font-size: .9rem;
    font-weight: 500;
    color: var(--text-body);
    transition: var(--transition);
}

.nav__link:hover,
.nav__link--active {
    color: var(--primary);
    background-color: rgba(0, 148, 216, .08);
}

.nav__cta {
    display: none;
}

.nav__toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: .5rem;
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav__toggle:hover {
    background-color: var(--bg);
}

.nav__toggle-bar {
    width: 24px;
    height: 2px;
    background-color: var(--neutral-soft);
    border-radius: 2px;
    transition: var(--transition);
}

/* Mobile menu open state */
.nav__toggle.is-active .nav__toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav__toggle.is-active .nav__toggle-bar:nth-child(2) {
    opacity: 0;
}
.nav__toggle.is-active .nav__toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav drawer */
.nav__mobile {
    display: none;
    flex-direction: column;
    gap: .25rem;
    padding: 1rem 0 1.25rem;
    border-top: 1px solid var(--border);
}

.nav__mobile.is-open {
    display: flex;
}

.nav__mobile .nav__link {
    padding: .7rem 1rem;
}

.nav__mobile-cta {
    margin-top: .5rem;
    padding-inline: 1rem;
}

/* ── 7. HERO ──────────────────────────────────────────────── */
.hero {
    position: relative;
    min-height: 55vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--secondary) 45%, var(--primary) 100%);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(0,148,216,.25) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(0,96,133,.3) 0%, transparent 50%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 80px;
    background: var(--bg);
    clip-path: ellipse(55% 100% at 50% 100%);
}

/* Layout dos columnas del hero */
.hero__layout {
    position: relative;
    z-index: 1;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
    padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.hero__content {
    flex: 1;
    min-width: 0;
}

/* Logo lado derecho */
.hero__logo-side {
    flex-shrink: 0;
    display: none; /* oculto en móvil */
    align-items: center;
    justify-content: center;
}

.hero__logo-img {
    width: clamp(280px, 36vw, 500px);
    height: auto;
    object-fit: contain;
    opacity: 1;
    filter: drop-shadow(0 12px 40px rgba(0,0,0,.45));
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .4rem 1rem;
    background-color: rgba(255,255,255,.15);
    border: 1px solid rgba(255,255,255,.25);
    border-radius: var(--radius-full);
    font-size: .8rem;
    font-weight: 600;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: .5px;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(4px);
}

.hero__badge-dot {
    width: 8px;
    height: 8px;
    background-color: #4ade80;
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: .7; transform: scale(1.3); }
}

.hero__title {
    color: var(--white);
    font-size: clamp(2rem, 5.5vw, 2.8rem);
    line-height: 1.15;
    font-weight: 800;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 20px rgba(0,0,0,.2);
}

.hero__title span {
    color: #7dd3fc;
}

.hero__text {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: rgba(255,255,255,.85);
    max-width: 600px;
    margin-bottom: 2.5rem;
    line-height: 1.75;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.hero__stats {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    margin-top: 3.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,.2);
}

.hero__stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
}

.hero__stat-label {
    font-size: .8rem;
    color: rgba(255,255,255,.7);
    margin-top: .25rem;
    text-transform: uppercase;
    letter-spacing: .5px;
}

/* ── 8. SECTION HEADERS ───────────────────────────────────── */
.section-header {
    text-align: center;
    margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.section-header__label {
    display: inline-block;
    font-size: .8rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: .75rem;
}

.section-header__title {
    margin-bottom: 1rem;
}

.section-header__divider {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: var(--radius-full);
    margin: 1rem auto 0;
}

.section-header__text {
    max-width: 640px;
    margin-inline: auto;
    color: var(--text-muted);
    font-size: 1.05rem;
}

/* ── 9. EMISORAS CARDS ────────────────────────────────────── */
#emisoras {
    padding-top: clamp(1.5rem, 4vw, 2.5rem);
    padding-bottom: clamp(5rem, 12vw, 9rem);
}

.emisoras__grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.emisora-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border);
}

.emisora-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

.emisora-card__header {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
    padding: 1.75rem 1.5rem 1.25rem;
    position: relative;
    overflow: hidden;
}

.emisora-card__header::after {
    content: '';
    position: absolute;
    top: -30px;
    right: -30px;
    width: 100px;
    height: 100px;
    background: rgba(255,255,255,.08);
    border-radius: 50%;
}

/* Card con imagen de fondo (cuando tiene logo) */
.emisora-card__cover {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.emisora-card__cover-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .4s ease;
}

.emisora-card:hover .emisora-card__cover-img {
    transform: scale(1.05);
}

/* Card con logo: slogan + frecuencia */
.emisora-card__slogan {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--secondary-dark);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: .5px;
    margin-bottom: .5rem;
}

.emisora-card--has-logo .emisora-card__ciudad {
    justify-content: center;
}

.emisora-card__name {
    font-size: 1.75rem;
    font-weight: 900;
    color: var(--white);
    letter-spacing: -1px;
}

.emisora-card__freq {
    font-size: .85rem;
    color: rgba(255,255,255,.75);
    margin-top: .25rem;
    font-weight: 500;
}

.emisora-card__body {
    padding: 1.5rem;
}

.emisora-card__ciudad {
    display: flex;
    align-items: center;
    gap: .4rem;
    font-size: .85rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

.emisora-card__ciudad svg {
    color: var(--primary);
    flex-shrink: 0;
}

.emisora-card__live {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .6rem;
    width: 100%;
    padding: .8rem;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-size: .9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.emisora-card__live:hover {
    opacity: .9;
    transform: scale(1.02);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0,148,216,.4);
}

.emisora-card__live-dot {
    position: relative;
    width: 12px;
    height: 12px;
    background-color: #b91c1c;
    border-radius: 50%;
    flex-shrink: 0;
    z-index: 1;
    box-shadow: 0 0 6px 2px rgba(185, 28, 28, .7);
}

.emisora-card__live-dot::before,
.emisora-card__live-dot::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 12px;
    height: 12px;
    margin-top: -6px;
    margin-left: -6px;
    border-radius: 50%;
    border: 2.5px solid #b91c1c;
    opacity: 0;
}

.emisora-card__live-dot::before {
    animation: pulse-ring 1.8s ease-out infinite;
}

.emisora-card__live-dot::after {
    animation: pulse-ring 1.8s ease-out infinite .6s;
}

@keyframes pulse-ring {
    0%   { opacity: 1;  transform: scale(1); }
    100% { opacity: 0;  transform: scale(3.5); }
}

/* ── 10. ALCANCE ──────────────────────────────────────────── */
.alcance {
    background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--neutral-soft) 100%);
}

.alcance__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: center;
}

.alcance__content { color: var(--white); }
.alcance__content h2 { color: var(--white); }

.alcance__feature {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.alcance__icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
}

.alcance__icon svg {
    display: block;
    flex-shrink: 0;
}

.alcance__feature-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: .25rem;
}

.alcance__feature-text {
    font-size: .9rem;
    color: rgba(255,255,255,.7);
    margin: 0;
}

.alcance__map {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.1);
    padding: 2rem;
    text-align: center;
}

.alcance__coverage-badge {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    padding: .6rem 1.25rem;
    background: rgba(0,148,216,.2);
    border: 1px solid rgba(0,148,216,.4);
    border-radius: var(--radius-full);
    font-size: .85rem;
    font-weight: 600;
    color: #7dd3fc;
    margin-bottom: 1.5rem;
}

.alcance__number {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 900;
    color: var(--white);
    line-height: 1;
    background: linear-gradient(135deg, #7dd3fc, var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.alcance__number-label {
    font-size: 1rem;
    color: rgba(255,255,255,.7);
    margin-top: .5rem;
}

/* ── 11. SOBRE NOSOTROS — RESEÑA HISTÓRICA ───────────────── */
#nosotros {
    background-color: var(--white);
}

.historia__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    align-items: start;
}

.historia__timeline {
    position: relative;
    padding-left: 2.75rem;
}

.historia__timeline::before {
    content: '';
    position: absolute;
    left: 9px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary), var(--secondary-dark));
    border-radius: var(--radius-full);
}

.historia__item {
    position: relative;
    padding-bottom: 2.25rem;
}

.historia__item:last-child {
    padding-bottom: 0;
}

.historia__item::before {
    content: '';
    position: absolute;
    left: -2.75rem;
    top: 6px;
    width: 20px;
    height: 20px;
    background: var(--bg);
    border: 3px solid var(--primary);
    border-radius: 50%;
    z-index: 1;
    transition: var(--transition);
}

.historia__item:hover::before {
    background: var(--primary);
    box-shadow: 0 0 0 4px rgba(0, 148, 216, .2);
}

.historia__year {
    display: inline-block;
    font-size: .75rem;
    font-weight: 700;
    color: var(--primary);
    background: rgba(0, 148, 216, .1);
    border: 1px solid rgba(0, 148, 216, .25);
    padding: .2rem .75rem;
    border-radius: var(--radius-full);
    letter-spacing: .5px;
    margin-bottom: .5rem;
    text-transform: uppercase;
}

.historia__title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--neutral-soft);
    margin-bottom: .35rem;
}

.historia__text {
    font-size: .9rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin: 0;
}

/* Galería de imágenes */
.historia__galeria {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2.5rem;
    position: sticky;
    top: 6rem;
}

.historia__galeria-img {
    width: 50%;
    max-width: 220px;
    border-radius: var(--radius-md);
    object-fit: cover;
    transition: var(--transition);
}

.historia__galeria-img:hover {
    transform: scale(1.03);
}

/* ── 11B. MISIÓN Y VISIÓN ────────────────────────────────── */
.mv-grid {
    gap: 2rem;
}

.mv-card {
    background: rgba(255,255,255,.04);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    text-align: left;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.mv-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary), #7dd3fc);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.mv-card:hover {
    background: rgba(255,255,255,.08);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,.2);
}

.mv-card__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.mv-card__title {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: .75rem;
    text-transform: uppercase;
    letter-spacing: .5px;
}

.mv-card__text {
    font-size: .92rem;
    color: rgba(255,255,255,.7);
    line-height: 1.75;
    margin: 0;
}

/* ── 11C. VALORES INSTITUCIONALES ────────────────────────── */
.valores-grid {
    gap: 1.5rem;
}

.valor-card {
    position: relative;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.25rem 1.5rem 1.75rem;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.valor-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0;
    transition: var(--transition);
}

.valor-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

.valor-card:hover::before {
    opacity: 1;
}

.valor-card__number {
    position: absolute;
    top: .75rem;
    right: 1rem;
    font-size: .75rem;
    font-weight: 800;
    color: var(--border);
    letter-spacing: -.5px;
}

.valor-card__icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.valor-card__title {
    font-size: .95rem;
    font-weight: 700;
    color: var(--neutral-soft);
    margin-bottom: .5rem;
}

.valor-card__text {
    font-size: .85rem;
    color: var(--text-muted);
    line-height: 1.65;
    margin: 0;
}

.nosotros__cta {
    text-align: center;
    margin-top: clamp(2rem, 5vw, 3rem);
}

/* Responsive historia grid */
@media (min-width: 768px) {
    .historia__grid {
        grid-template-columns: 1.4fr 1fr;
    }
}

/* ── 12. CONTACTO ─────────────────────────────────────────── */
.contacto-section {
    background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--secondary) 100%);
    color: var(--white);
}

/* Cards de contacto superiores */
.contacto__cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.contacto__card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.75rem 1.5rem;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    text-decoration: none;
    color: var(--white);
}

.contacto__card:hover {
    transform: translateY(-4px);
    background: rgba(255,255,255,.14);
    box-shadow: 0 12px 30px rgba(0,0,0,.2);
    border-color: rgba(255,255,255,.3);
    color: var(--white);
}

.contacto__card-icon {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: rgba(255,255,255,.1);
    color: #7dd3fc;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: .75rem;
    transition: var(--transition);
}

.contacto__card:hover .contacto__card-icon {
    background: var(--primary);
    color: var(--white);
}

.contacto__card:hover .contacto__card-icon svg {
    stroke: white;
}

.contacto__card-label {
    font-size: .75rem;
    font-weight: 600;
    color: #7dd3fc;
    text-transform: uppercase;
    letter-spacing: .8px;
    margin-bottom: .25rem;
}

.contacto__card-value {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--white);
}

.contacto__card-sub {
    font-size: .8rem;
    color: rgba(255,255,255,.6);
    margin-top: .2rem;
}

/* Layout formulario + contexto */
.contacto__layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    align-items: start;
}

/* Contexto izquierdo */
.contacto__context-title {
    font-size: clamp(1.4rem, 3vw, 2rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.25;
    margin: .75rem 0 1rem;
}

.contacto__context-text {
    font-size: .95rem;
    color: rgba(255,255,255,.75);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.contacto__context-features {
    display: flex;
    flex-direction: column;
    gap: .85rem;
}

.contacto__context-feature {
    display: flex;
    align-items: center;
    gap: .65rem;
    font-size: .9rem;
    color: rgba(255,255,255,.85);
    font-weight: 500;
}

.contacto__context-feature svg {
    stroke: #7dd3fc;
}

.contacto__context-feature svg {
    flex-shrink: 0;
}

/* Formulario */
.contacto__form {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}


.contacto__form-header {
    margin-bottom: 1.5rem;
}

.contacto__form-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--neutral-soft);
    margin-bottom: .25rem;
}

.contacto__form-subtitle {
    font-size: .8rem;
    color: var(--text-muted);
    margin: 0;
}

.contacto__form-row {
    gap: 1rem;
}

.contacto__form-btn {
    width: 100%;
    justify-content: center;
    margin-top: .25rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    font-size: .82rem;
    font-weight: 600;
    color: var(--text-body);
    margin-bottom: .35rem;
}

.form-control {
    width: 100%;
    padding: .7rem 1rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    font-size: .92rem;
    font-family: var(--font-sans);
    color: var(--text-body);
    background-color: var(--bg);
    transition: var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--primary);
    background-color: var(--white);
    box-shadow: 0 0 0 3px rgba(0, 148, 216, .12);
}

textarea.form-control {
    resize: vertical;
    min-height: 110px;
}

/* Alertas del formulario */
.form-alert {
    display: flex;
    align-items: flex-start;
    gap: .9rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.25rem;
}

.form-alert svg {
    flex-shrink: 0;
    margin-top: 1px;
}

.form-alert strong {
    display: block;
    margin-bottom: .15rem;
}

.form-alert--ok {
    background: #dcfce7;
    border: 1.5px solid #86efac;
    color: #166534;
}

.form-alert--error {
    background: #fee2e2;
    border: 1.5px solid #fca5a5;
    color: #991b1b;
}

.form-alert--error a {
    color: #991b1b;
    font-weight: 600;
}

/* Responsive contacto */
@media (min-width: 768px) {
    .contacto__cards {
        grid-template-columns: repeat(3, 1fr);
    }
    .contacto__layout {
        grid-template-columns: 1fr 1.2fr;
    }
}

/* ── 12B. MODALES ─────────────────────────────────────────── */
.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity .3s ease, visibility .3s ease;
}

.modal.is-open {
    opacity: 1;
    visibility: visible;
}

.modal__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, .6);
    backdrop-filter: blur(4px);
    cursor: pointer;
}

.modal__content {
    position: relative;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    max-width: 640px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 25px 60px rgba(0, 0, 0, .25);
    transform: translateY(20px);
    transition: transform .3s ease;
}

.modal.is-open .modal__content {
    transform: translateY(0);
}

.modal__content--sm {
    max-width: 420px;
    text-align: center;
}

.modal__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-muted);
    transition: var(--transition);
}

.modal__close:hover {
    background: var(--border);
    color: var(--neutral-soft);
}

.modal__icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
}

.modal__icon--ok {
    background: #dcfce7;
}

.modal__icon--error {
    background: #fee2e2;
}

.modal__title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--neutral-soft);
    margin-bottom: .5rem;
}

.modal__date {
    font-size: .78rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.modal__text {
    font-size: .95rem;
    color: var(--text-muted);
    line-height: 1.65;
    margin-bottom: 1.5rem;
}

.modal__text a {
    color: var(--primary);
    font-weight: 600;
}

.modal__btn {
    min-width: 160px;
}

.modal__body {
    font-size: .9rem;
    color: var(--text-body);
    line-height: 1.75;
}

.modal__body h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--neutral-soft);
    margin: 1.75rem 0 .5rem;
}

.modal__body p {
    margin-bottom: .75rem;
}

.modal__body ul {
    padding-left: 1.25rem;
    margin-bottom: .75rem;
    list-style: disc;
}

.modal__body ul li {
    margin-bottom: .35rem;
}

.modal__body a {
    color: var(--primary);
    font-weight: 500;
}

.modal__table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: .85rem;
}

.modal__table th,
.modal__table td {
    padding: .65rem .75rem;
    border: 1px solid var(--border);
    text-align: left;
}

.modal__table th {
    background: var(--bg);
    font-weight: 600;
    color: var(--neutral-soft);
}

.modal__table td {
    color: var(--text-body);
}

/* Scrollbar del modal */
.modal__content::-webkit-scrollbar {
    width: 6px;
}

.modal__content::-webkit-scrollbar-track {
    background: var(--bg);
    border-radius: 3px;
}

.modal__content::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

/* ── 13. FOOTER ───────────────────────────────────────────── */
.site-footer {
    background: linear-gradient(180deg, var(--neutral-soft) 0%, #0a0f1a 100%);
    color: rgba(255,255,255,.8);
    padding-top: clamp(3rem, 7vw, 5rem);
}

.footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255,255,255,.1);
}

.footer__brand-name {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: -.5px;
}

.footer__brand-desc {
    font-size: .9rem;
    color: rgba(255,255,255,.6);
    margin: .75rem 0 1.25rem;
    line-height: 1.65;
}

.footer__social {
    display: flex;
    gap: .6rem;
}

.footer__social-link {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: rgba(255,255,255,.7);
    transition: var(--transition);
}

.footer__social-link:hover {
    background-color: var(--primary);
    border-color: var(--primary);
    color: var(--white);
    transform: translateY(-3px);
}

.footer__col-title {
    font-size: .85rem;
    font-weight: 700;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: .8px;
    margin-bottom: 1.25rem;
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: .6rem;
}

.footer__link {
    font-size: .9rem;
    color: rgba(255,255,255,.6);
    transition: var(--transition);
}

.footer__link:hover {
    color: var(--primary);
    padding-left: .3rem;
}

.footer__bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .75rem;
    text-align: center;
    padding-block: 1.5rem;
}

.footer__copyright {
    font-size: .82rem;
    color: rgba(255,255,255,.45);
}

.footer__dev-link {
    color: var(--primary);
    font-weight: 600;
    transition: opacity .2s;
}

.footer__dev-link:hover {
    opacity: .75;
    color: var(--primary);
}

.footer__legal {
    display: flex;
    gap: 1.25rem;
    flex-wrap: wrap;
    justify-content: center;
}

.footer__legal a {
    font-size: .82rem;
    color: rgba(255,255,255,.45);
    transition: var(--transition);
}

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

/* ── 14. BACK TO TOP ──────────────────────────────────────── */
.back-to-top {
    position: fixed;
    bottom: 1.75rem;
    right: 1.75rem;
    width: 46px;
    height: 46px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    border: none;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    z-index: 999;
}

.back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

/* ── 15. LOGO PLACEHOLDER ─────────────────────────────────── */
.logo-placeholder {
    height: 46px;
    width: 46px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 900;
    font-size: 1rem;
    letter-spacing: -.5px;
}

/* ── RESPONSIVE — SMALL MOBILE (≤400px) ──────────────────── */
@media (max-width: 400px) {
    .container {
        padding-inline: 1rem;
    }

    .hero__title {
        font-size: 1.45rem;
    }

    .hero__actions {
        flex-direction: column;
        align-items: center;
    }

    .hero__actions .btn {
        width: 100%;
        justify-content: center;
    }

    .hero__stats {
        gap: 1rem;
    }

    .hero__stat-number {
        font-size: 1.3rem;
    }

    .valores-grid {
        grid-template-columns: 1fr 1fr !important;
    }

    .historia__galeria-img {
        width: 20% !important;
        max-width: 60px !important;
    }

    .contacto__card-value {
        font-size: .82rem;
    }

    .contacto__card-sub {
        font-size: .72rem;
    }
}

/* ── 16. RESPONSIVE — TABLET (≥768px) ────────────────────── */
@media (min-width: 768px) {
    .nav__links { display: flex; }
    .nav__cta   { display: flex; }
    .nav__toggle { display: none; }

    .grid--2 { grid-template-columns: repeat(2, 1fr); }
    .grid--3 { grid-template-columns: repeat(2, 1fr); }
    .grid--4 { grid-template-columns: repeat(2, 1fr); }

    .emisoras__grid { grid-template-columns: repeat(2, 1fr); }

    .alcance__grid { grid-template-columns: 1fr 1fr; }
    .nosotros__grid { grid-template-columns: 1fr 1fr; }

    .footer__grid { grid-template-columns: 2fr 1fr 1fr; }
    .footer__bottom { flex-direction: row; justify-content: space-between; text-align: left; }
}

/* ── 17. RESPONSIVE — DESKTOP (≥1024px) ──────────────────── */
@media (min-width: 1024px) {
    .grid--3 { grid-template-columns: repeat(3, 1fr); }
    .grid--4 { grid-template-columns: repeat(4, 1fr); }
    .emisoras__grid { grid-template-columns: repeat(4, 1fr); }
    .footer__grid { grid-template-columns: 2.5fr 1fr 1fr 1fr; }

    /* Hero: mostrar logo derecho en desktop */
    .hero__logo-side { display: flex; }
}

/* Hero: mostrar logo derecho desde tablet */
@media (min-width: 768px) {
    .hero__logo-side { display: flex; }
}

/* ── 18. ACCESSIBILITY & FOCUS ────────────────────────────── */
:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border-width: 0;
}

/* ── 19. KEYFRAMES ────────────────────────────────────────── */
@keyframes spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

/* ── 20. PRINT ────────────────────────────────────────────── */
@media print {
    .site-header,
    .hero__actions,
    .back-to-top,
    .nav__toggle { display: none; }
}