/* =========================================================
   1. VARIABLES GLOBALES
========================================================= */
:root {
    /* ---------- COLORES PRINCIPALES ---------- */
    --col-bilbao: #4D8ABB;
    --col-espiritu: #7DC6E5;
    --col-herencia: #374C69;
    --col-accent-pop: #F1C400;

    /* ---------- TEXTO ---------- */
    --col-texto: #1A202C;
    --text-dark: #1A202C;
    --text-gray: #4A5568;
    --text-light: #FFFFFF;

    /* ---------- FONDOS ---------- */
    --bg-global: #F9FBFE;
    --bg-dark: #0F172A;

    /* ---------- BORDES ---------- */
    --col-borde: rgba(77, 138, 187, 0.15);

    /* ---------- LAYOUT ---------- */
    --container-width: 1280px;
    --header-height: 80px;

    /* ---------- ESPACIADO ---------- */
    --sp-sm: 24px;
    --sp-md: 48px;
    --sp-lg: 80px;
    --sp-xl: 120px;

    /* ---------- GUTTERS ---------- */
    --gutter-mobile: 24px;
    --gutter-desktop: 64px;

    /* ---------- RADIOS ---------- */
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-card: 24px;
    --radius-pill: 100px;

    /* ---------- SOMBRAS ---------- */
    --shadow-float:
        0 30px 60px -10px rgba(77, 138, 187, 0.2),
        0 10px 20px -5px rgba(0, 0, 0, 0.05);

    --shadow-input:
        0 4px 10px rgba(0, 0, 0, 0.03);

    /* ---------- TRANSICIONES ---------- */
    --transition-fast: 0.2s ease;
    --transition-std: 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
    --ease-expo: cubic-bezier(0.19, 1, 0.22, 1);
    --transition-bezi: cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* =========================================================
   2. RESET / BASE
========================================================= */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--bg-global);
    color: var(--col-texto);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.4s var(--transition-bezi);
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
}

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

p {
    margin-bottom: 1rem;
    font-weight: 400;
}

main {
    padding-top: 0;
}

/* =========================================================
   3. UTILIDADES
========================================================= */
.text-gradient {
    background: linear-gradient(135deg, var(--col-bilbao) 0%, var(--col-espiritu) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.visible {
    display: block !important;
}

.rotate {
    transform: rotate(180deg);
}

.no-scroll {
    overflow: hidden;
}

/* =========================================================
   4. HEADER / MENÚ GLOBAL
========================================================= */
.header-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid rgba(77, 138, 187, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 24px;
    z-index: 1000;
}

.header-inner {
    width: 100%;
    max-width: 1280px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
    z-index: 1002;
    height: 100%;
}

.logo-img {
    height: 67px;
    width: auto;
    object-fit: contain;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 24px;
    z-index: 1002;
}

.lang-switch {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--col-herencia);
}

.lang-switch span.active {
    color: var(--col-bilbao);
    text-decoration: underline;
    text-underline-offset: 4px;
}

.menu-trigger {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    color: var(--col-bilbao);
}

.hamburger-icon {
    width: 28px;
    height: 20px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.hamburger-icon span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--col-bilbao);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--bg-global);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    overflow-y: auto;
}

.menu-overlay[aria-hidden="false"] {
    opacity: 1;
    visibility: visible;
}

.overlay-header {
    flex-shrink: 0;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 24px;
    border-bottom: 1px solid rgba(77, 138, 187, 0.1);
}

.close-btn {
    width: 44px;
    height: 44px;
    position: relative;
    color: var(--col-bilbao);
}

.close-btn::before,
.close-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 2px;
    background-color: currentColor;
}

.close-btn::before {
    transform: translate(-50%, -50%) rotate(45deg);
}

.close-btn::after {
    transform: translate(-50%, -50%) rotate(-45deg);
}

.overlay-content {
    flex-grow: 1;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 32px 24px;
}

.nav-accordion-item {
    border-bottom: 1px solid var(--col-borde);
}

.nav-accordion-trigger {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--col-herencia);
    text-align: left;
    transition: color 0.2s;
}

.nav-accordion-trigger:hover,
.nav-accordion-trigger[aria-expanded="true"] {
    color: var(--col-bilbao);
}

.nav-accordion-trigger .chevron {
    transition: transform 0.3s ease;
    font-size: 1rem;
}

.nav-accordion-trigger[aria-expanded="true"] .chevron {
    transform: rotate(180deg);
}

.nav-submenu {
    display: none;
    padding-bottom: 24px;
    padding-left: 24px;
    border-left: 2px solid var(--col-espiritu);
    margin-left: 4px;
}

.nav-submenu li {
    margin-bottom: 16px;
}

.nav-submenu a {
    font-size: 1.1rem;
    color: var(--col-texto);
    font-weight: 500;
}

.nav-submenu a:hover {
    color: var(--col-bilbao);
}

/* =========================================================
   5. ANIMACIONES GLOBALES
========================================================= */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: var(--transition-smooth);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
}

.fade-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scrollCarousel {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-400px * 5));
    }
}

@keyframes scrollMarquee {
    0% {
        transform: translate3d(0, 0, 0);
    }
    100% {
        transform: translate3d(-50%, 0, 0);
    }
}

/* =========================================================
   6. HOME / INDEX
========================================================= */

/* HERO */
.hero-flagship {
    position: relative;
    height: 120vh;
    width: 100%;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #000;
}

.hero-video-bg,
.hero-poster {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-video-bg {
    opacity: 0.9;
    will-change: opacity;
    z-index: 10;
    display: block;
}

.hero-poster {
    display: none;
}

.hero-fallback {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('assets/img/home/poster.jpg');
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.1) 0%, rgba(55, 76, 105, 0.4) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: white;
    padding: 0 20px;
    max-width: 1200px;
    will-change: transform, opacity;
}

.hero-subtitle-tag {
    display: inline-block;
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: 1px;
    margin-bottom: 24px;
    background: var(--col-bilbao);
    padding: 10px 24px;
    border-radius: 50px;
    animation: fadeInDown 1s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.hero-title {
    font-size: clamp(3.5rem, 9vw, 6.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    min-height: 1.2em;
    text-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    transform-style: preserve-3d;
    transform-origin: center center -40px;
    animation: fadeInUp 1s cubic-bezier(0.2, 0.8, 0.2, 1) 0.2s backwards;
    height: 40vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-cta-wrapper {
    margin-top: 40px;
    animation: fadeInUp 1s cubic-bezier(0.2, 0.8, 0.2, 1) 0.5s backwards;
}

.btn-epic {
    display: inline-block;
    padding: 18px 40px;
    border-radius: 100px;
    font-weight: 700;
    font-size: 1.15rem;
    text-decoration: none;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
    background-color: var(--col-espiritu);
    color: white;
    box-shadow: 0 10px 30px rgba(77, 138, 187, 0.4);
}

.btn-epic:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(77, 138, 187, 0.6);
    background-color: white;
    color: var(--col-bilbao);
}

/* BIENVENIDA */
.welcome-section {
    padding: 140px 20px;
    background-color: white;
    text-align: center;
}

.welcome-lead {
    font-size: clamp(2rem, 5vw, 3.5rem);
    color: var(--col-herencia);
    font-weight: 300;
    line-height: 1.3;
    max-width: 1000px;
    margin: 0 auto;
}

.welcome-lead strong {
    font-weight: 800;
    color: var(--col-bilbao);
    position: relative;
}

.welcome-lead strong::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 15px;
    background: rgba(125, 198, 229, 0.2);
    z-index: -1;
    transform: skewX(-10deg);
}

/* STATS */
.stats-banner {
    background-color: transparent;
    padding: 15px;
    position: relative;
    z-index: 10;
    margin-top: -80px;
    box-shadow: none;
    pointer-events: none;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: white;
    border-radius: var(--radius-card);
    box-shadow: 0 20px 20px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    pointer-events: auto;
    max-width: 1200px;
    margin: 0 auto;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.stat-item {
    padding: 3rem 1rem;
    text-align: center;
    position: relative;
    background: white;
}

.stat-item h3 {
    font-size: 2.4rem;
    font-weight: 900;
    color: var(--col-bilbao);
    margin-bottom: 0.5rem;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.stat-item p {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-gray);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0;
}

/* NIVELES ACADÉMICOS */
.levels-section {
    padding-bottom: 120px;
    padding-top: 80px;
}

.section-header-center {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--col-espiritu);
}

.levels-container {
    display: flex;
    width: 100%;
    height: 600px;
    max-width: 1400px;
    margin: 0 auto;
    gap: 10px;
    padding: 0 20px;
}

.level-card {
    position: relative;
    flex: 1;
    border-radius: 30px;
    overflow: hidden;
    cursor: pointer;
    transition: flex 0.6s cubic-bezier(0.25, 1, 0.5, 1);
    min-width: 100px;
    transform: translateZ(0);
}

.level-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;

    object-fit: cover;
    transition: transform 0.6s;
    filter: brightness(0.85);
    will-change: transform;
}

.level-card:hover .level-bg {
    transform: scale(1.05);
    filter: brightness(0.6);
}

.level-content {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 40px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent 80%);
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    opacity: 0.9;
}

.panel-num {
    font-size: 5rem;
    font-weight: 900;
    opacity: 0.2;
    position: absolute;
    top: 20px;
    right: 20px;
    line-height: 1;
    transition: opacity 0.3s;
}

/* OJO: en tu CSS original había .level-panel:hover .panel-num
   pero el resto usa .level-card, así que aquí lo corregí */
.level-card:hover .panel-num {
    opacity: 1;
}

.level-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 10px;
    transform-origin: left;
    transition: all 0.5s;
    white-space: nowrap;
}

.level-desc {
    font-size: 1.1rem;
    opacity: 0;
    max-height: 0;
    transition: all 0.5s;
    overflow: hidden;
}

.level-card:hover .level-desc,
.level-card:active .level-desc {
    opacity: 1;
    max-height: 200px;
    margin-top: 10px;
}

.level-link {
    display: inline-block;
    margin-top: 20px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 2px solid var(--col-espiritu);
    padding-bottom: 4px;
    opacity: 0;
    transform: translateY(20px);
    transition: 0.5s 0.1s;
}

.level-card:hover .level-link {
    opacity: 1;
    transform: translateY(0);
}

/* MODELO VIDA */
.vida-showcase {
    background-color: var(--col-herencia);
    color: white;
    padding: 120px 20px;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.vida-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    pointer-events: none;
}

.blob-1 {
    top: -100px;
    left: -100px;
    width: 500px;
    height: 500px;
    background: var(--col-bilbao);
}

.blob-2 {
    bottom: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: var(--col-espiritu);
}

.vida-container {
    position: relative;
    z-index: 2;
    max-width: 1100px;
    margin: 0 auto;
}

.vida-h2 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: white;
}

.vida-p {
    font-size: 1.2rem;
    margin-bottom: 60px;
    color: rgba(255, 255, 255, 0.9);
}

.vida-grid-new {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.vida-card-new {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 30px;
    padding: 40px 20px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    text-align: center;
    cursor: default;
}

.vida-card-new::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--col-espiritu), var(--col-bilbao));
    transform: scaleX(0);
    transition: transform 0.4s ease;
    transform-origin: left;
}

.vida-card-new:hover::before {
    transform: scaleX(1);
}

.vida-card-new:hover {
    transform: translateY(-15px);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.vc-letter {
    font-size: 5rem;
    font-weight: 900;
    color: white;
    opacity: 0.2;
    line-height: 1;
    margin-bottom: 10px;
    transition: 0.4s;
    display: block;
}

.vida-card-new:hover .vc-letter {
    opacity: 1;
    color: var(--col-espiritu);
    transform: scale(1.1);
}

.vc-title {
    font-size: 1.5rem;
    color: white;
    font-weight: 700;
    margin-bottom: 8px;
    display: block;
}

.vc-desc {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.4;
}

/* CAROUSEL */
.carousel-section {
    padding: var(--sp-xl) 0;
    background-color: white;
    overflow: hidden;
    position: relative;
}

.carousel-track-wrapper {
    width: 100%;
    overflow: hidden;
}

.carousel-track {
    display: flex;
    width: calc(400px * 12);
    animation: scrollCarousel 40s linear infinite;
}

.carousel-track:hover {
    animation-play-state: paused;
}

.carousel-slide {
    width: 400px;
    height: 500px;
    margin-right: 20px;
    border-radius: var(--radius-card);
    overflow: hidden;
    position: relative;
    cursor: pointer;
    flex-shrink: 0;
    display: block;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.carousel-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem;
    background: linear-gradient(0deg, rgba(0, 0, 0, 0.9), transparent);
    color: white;
    transform: translateY(100%);
    transition: transform 0.4s ease;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.carousel-slide:hover img {
    transform: scale(1.1);
}

.carousel-slide:hover .carousel-overlay {
    transform: translateY(0);
}

.slide-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: white;
}

.slide-cta {
    font-size: 0.9rem;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--col-espiritu);
}

/* TESTIMONIOS */
.voices-section {
    padding: 100px 0;
    background-color: var(--bg-offwhite);
    overflow: hidden;
}

.voices-header {
    text-align: center;
    margin-bottom: 60px;
    padding: 0 20px;
}

.voices-title {
    font-size: 2.5rem;
    color: var(--col-herencia);
    font-weight: 700;
}

.marquee-container {
    position: relative;
    width: 100%;
    overflow: hidden;
}

.marquee-track {
    display: flex;
    gap: 30px;
    width: max-content;
    animation: scrollMarquee 40s linear infinite;
    will-change: transform;
}

.marquee-track:hover {
    animation-play-state: paused;
}

.voice-card {
    width: 350px;
    flex-shrink: 0;
    background: white;
    border-radius: 20px;
    padding: 30px;
    border: 1px solid var(--col-borde);
    transition: transform 0.3s;
}

.voice-card:hover {
    transform: scale(1.02);
    background: white;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.voice-quote {
    font-size: 1.1rem;
    color: var(--col-texto);
    font-style: italic;
    margin-bottom: 20px;
}

.voice-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: #ddd;
    object-fit: cover;
}

.author-info strong {
    display: block;
    color: var(--col-bilbao);
    font-size: 0.95rem;
}

.author-info span {
    font-size: 0.85rem;
    color: #999;
}

/* NOTICIAS */
.news-section {
    padding: var(--sp-xl) 20px;
    background-color: var(--bg-global);
}

.news-container {
    max-width: 1200px;
    margin: 0 auto;
}

.news-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: 1fr;
}

.news-item {
    position: relative;
    border-radius: var(--radius-card);
    overflow: hidden;
    background: white;
    box-shadow: var(--shadow-card);
    transition: transform 0.3s;
    display: block;
    text-decoration: none;
    min-height: 300px;
}

.news-item:hover {
    transform: translateY(-5px);
}

.news-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.news-item:hover .news-img {
    transform: scale(1.05);
}

.news-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem;
    background: linear-gradient(0deg, rgba(0, 0, 0, 0.8) 0%, transparent 100%);
    color: white;
    text-align: left;
}

.news-date {
    font-size: 0.8rem;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    display: block;
    opacity: 0.8;
    font-weight: 600;
    color: var(--col-espiritu);
}

.news-title-card {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.3;
    color: white;
}

/* CTA BLOG */
.blog-cta-strip {
    padding: 0 20px 100px;
    background-color: var(--bg-global);
}

.blog-cta-inner {
    max-width: 1200px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--bg-offwhite), #EEF6FB);
    border: 1px solid var(--col-borde);
    border-radius: 28px;
    padding: 36px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.04);
}

.blog-cta-copy {
    max-width: 760px;
}

.blog-cta-copy h3 {
    font-size: 1.7rem;
    font-weight: 800;
    color: var(--col-herencia);
    margin-bottom: 8px;
}

.blog-cta-copy p {
    margin: 0;
    font-size: 1rem;
    color: var(--col-texto);
    line-height: 1.7;
}

.btn-blog-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    padding: 16px 32px;
    border-radius: 100px;
    background-color: var(--col-bilbao);
    color: white;
    font-weight: 700;
    font-size: 0.98rem;
    box-shadow: 0 12px 28px rgba(77, 138, 187, 0.28);
    transition: all 0.4s var(--transition-bezi);
}

.btn-blog-cta:hover {
    transform: translateY(-3px);
    background-color: var(--col-espiritu);
    color: white;
    box-shadow: 0 20px 36px rgba(125, 198, 229, 0.35);
}

/* ALUMNI */
.alumni-section {
    background-color: var(--col-herencia);
    color: white;
    padding: 100px 20px;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.alumni-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.alumni-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--col-espiritu);
    margin-bottom: 1rem;
}

.alumni-text {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    color: white;
}

.btn-alumni {
    display: inline-block;
    padding: 16px 36px;
    border-radius: 50px;
    background: transparent;
    border: 2px solid var(--col-espiritu);
    color: var(--col-espiritu);
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s;
}

.btn-alumni:hover {
    background: var(--col-espiritu);
    color: var(--col-herencia);
}

/* CTA FINAL */
.final-cta {
    padding: 140px 20px;
    text-align: center;
    background: radial-gradient(circle at center, #F0F9FF 0%, #FFFFFF 70%);
}

.cta-big-h2 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    color: var(--col-herencia);
    font-weight: 800;
    margin-bottom: 30px;
    line-height: 1.2;
}

.btn-final {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--col-bilbao);
    color: white;
    padding: 20px 50px;
    border-radius: 100px;
    font-size: 1.2rem;
    font-weight: 700;
    box-shadow: 0 20px 40px rgba(77, 138, 187, 0.4);
    transition: 0.3s;
}

.btn-final:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 30px 60px rgba(77, 138, 187, 0.5);
}

/* =========================================================
   7. BLOG / ARTÍCULO
========================================================= */
.article-hero {
    position: relative;
    height: 70vh;
    width: 100%;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
    margin-top: var(--header-height);
}

.hero-img-parallax {
    position: absolute;
    top: -15%;
    left: 0;
    width: 100%;
    height: 130%;
    object-fit: cover;
    will-change: transform;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(55, 76, 105, 0.88) 0%,
        rgba(55, 76, 105, 0.35) 50%,
        rgba(0, 0, 0, 0.05) 100%
    );
    z-index: 1;
}

.hero-meta {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 860px;
    margin: 0 auto;
    padding: 0 24px 52px;
    color: white;
    animation: fadeInUp 0.9s cubic-bezier(0.2, 0.8, 0.2, 1) 0.1s backwards;
}

.article-category,
.article-category-home {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--col-bilbao);
    margin-bottom: 5px;
    border: 1px solid var(--col-bilbao);
    color: var(--col-bilbao);
    padding: 5px 14px;
    border-radius: 50px;
}

.article-category-template {
    color: var(--bg-global);
}



.article-title {
    font-size: clamp(1.8rem, 4.5vw, 3rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.5px;
    color: white;
    margin-bottom: 24px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.article-byline {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.author-avatar-small {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(255, 255, 255, 0.4);
    background: var(--col-bilbao);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    color: white;
    flex-shrink: 0;
}

.byline-text {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
}

.byline-text strong {
    color: white;
    font-weight: 700;
}

.byline-dot {
    color: rgba(255, 255, 255, 0.4);
}

.breadcrumb {
    max-width: 720px;
    margin: 0 auto;
    padding: 28px 24px 0;
    font-size: 0.82rem;
    color: #999;
    display: flex;
    align-items: center;
    gap: 8px;
}

.breadcrumb a {
    color: var(--col-bilbao);
    font-weight: 600;
}

.breadcrumb a:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.breadcrumb span {
    color: #ccc;
}

.article-body-wrapper {
    max-width: 720px;
    margin: 0 auto;
    padding: 72px 24px 100px;
}

.article-lead {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--col-herencia);
    line-height: 1.75;
    margin-bottom: 2rem;
    border-left: 4px solid var(--col-espiritu);
    padding-left: 24px;
}

.article-body p {
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--col-texto);
    margin-bottom: 1.75rem;
    font-weight: 400;
}

.article-body h2 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--col-herencia);
    margin: 2.5rem 0 1rem;
    letter-spacing: -0.3px;
}

.article-body blockquote {
    margin: 2.5rem 0;
    padding: 28px 32px;
    background: var(--bg-offwhite);
    border-radius: 20px;
    border-left: 5px solid var(--col-bilbao);
    font-size: 1.15rem;
    font-style: italic;
    color: var(--col-herencia);
    line-height: 1.7;
}

.article-divider {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--col-bilbao), var(--col-espiritu));
    border-radius: 2px;
    margin: 48px 0;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 48px;
}

.tag {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 6px 16px;
    border-radius: 50px;
    background: var(--bg-offwhite);
    color: var(--col-bilbao);
    border: 1px solid var(--col-borde);
    transition: all 0.3s;
    cursor: default;
}

.tag:hover {
    background: var(--col-bilbao);
    color: white;
    border-color: var(--col-bilbao);
}

.share-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--col-borde);
}

.share-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--col-herencia);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.share-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-offwhite);
    border: 1px solid var(--col-borde);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    cursor: pointer;
}

.share-btn:hover {
    background: var(--col-bilbao);
    border-color: var(--col-bilbao);
}

.share-btn svg {
    width: 16px;
    height: 16px;
    fill: var(--col-herencia);
    transition: fill 0.3s;
}

.share-btn:hover svg {
    fill: white;
}

.article-cta-block {
    background: linear-gradient(135deg, var(--col-herencia), #2a3850);
    border-radius: 28px;
    padding: 48px 40px;
    margin-top: 64px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.article-cta-block::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 200px;
    height: 200px;
    background: var(--col-espiritu);
    border-radius: 50%;
    opacity: 0.1;
    filter: blur(40px);
}

.article-cta-block h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 12px;
}

.article-cta-block p {
    color: rgba(255, 255, 255, 0.75);
    font-size: 1rem;
    margin-bottom: 24px;
}

.btn-cta-article {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 100px;
    background: var(--col-espiritu);
    color: white;
    font-weight: 700;
    font-size: 0.95rem;
    transition: all 0.3s;
    box-shadow: 0 8px 24px rgba(125, 198, 229, 0.35);
}

.btn-cta-article:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 40px rgba(125, 198, 229, 0.5);
    background: white;
    color: var(--col-bilbao);
}

/* =========================================================
   8. FOOTER
========================================================= */

/* Footer completo del index */
.footer-site {
    background-color: var(--bg-global);
    border-top: 1px solid var(--col-borde);
    padding-top: 60px;
    font-size: 0.95rem;
    color: var(--col-herencia);
}

.footer-container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.footer-header {
    display: flex;
    flex-direction: column;
    margin-bottom: 40px;
    align-items: flex-start;
}

.footer-logo-link {
    display: inline-block;
    margin-bottom: 16px;
}

.footer-logo-img {
    height: 77px;
    width: auto;
    object-fit: contain;
    display: block;
}

.footer-social-desktop {
    display: none;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--col-herencia);
    margin-right: 12px;
    transition: 0.2s;
}

.social-link:hover {
    color: var(--col-bilbao);
    transform: translateY(-2px);
}

.social-icon {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.footer-grid {
    display: grid;
    gap: 40px;
    grid-template-columns: 1fr;
}

.footer-desc {
    margin-bottom: 24px;
    font-size: 0.9rem;
    line-height: 1.6;
    text-align: left;
}

.footer-contact p {
    margin-bottom: 8px;
    text-align: left;
    font-weight: 400;
}

.footer-contact a {
    font-weight: 600;
    color: var(--col-bilbao);
}

.footer-social-mobile {
    margin-top: 24px;
    margin-bottom: 32px;
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.footer-col-title {
    font-weight: 700;
    color: var(--col-bilbao);
    margin-bottom: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.footer-links {
    display: none;
    margin-bottom: 24px;
}

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

.footer-links a:hover {
    color: var(--col-espiritu);
    text-decoration: underline;
}

.footer-legal {
    margin-top: 48px;
    padding: 24px 0;
    border-top: 1px solid var(--col-borde);
    font-size: 0.8rem;
    display: flex;
    flex-direction: column;
    gap: 16px;
    text-align: center;
    opacity: 0.8;
}

.legal-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}

/* Footer simple del artículo */
.footer-simple {
    background-color: var(--bg-global);
    border-top: 1px solid var(--col-borde);
    padding: 40px 24px;
    text-align: center;
    font-size: 0.82rem;
    color: #aaa;
}

.footer-simple a {
    color: var(--col-bilbao);
    font-weight: 600;
}

.footer-copyright {
    text-align: center;
}

/* =========================================================
   9. RESPONSIVE
========================================================= */
@media (max-width: 1024px) {
    .hero-poster {
        display: block;
        z-index: 0;
    }

    .hero-video-bg {
        display: none;
    }

    .levels-container {
        flex-direction: column;
        height: auto;
        gap: 20px;
    }

    .level-card {
        height: 350px;
        flex: none;
        width: 100%;
    }

    .level-desc {
        opacity: 1;
        max-height: none;
    }

    .level-link {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (min-width: 1024px) {
    .level-card:hover {
        flex: 4;
    }

    .level-card:not(:hover) .level-title {
        transform: rotate(-90deg) translate(0px, -50%);
        position: absolute;
        bottom: 100px;
        left: 50%;
        margin: 0;
    }

    .level-card:hover .level-title {
        transform: rotate(0deg);
        position: relative;
        bottom: auto;
        left: auto;
    }

    .news-grid {
        grid-template-columns: 2fr 1fr;
        grid-template-rows: repeat(2, 300px);
    }

    .news-item.featured {
        grid-row: 1 / 3;
    }

    .footer-header {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }

    .footer-social-desktop {
        display: flex;
        gap: 16px;
        align-items: center;
    }

    .footer-grid {
        grid-template-columns: 1.4fr 1fr 1fr 1fr;
        gap: 36px;
    }

    .footer-identity {
        grid-column: auto;
    }

    .footer-links {
        display: block !important;
    }

    .footer-col-title {
        pointer-events: none;
        cursor: default;
    }

    .footer-col-title .chevron {
        display: none;
    }

    .footer-social-mobile {
        display: none;
    }

    .footer-legal {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1px;
        background: #f0f0f0;
    }

    .blog-cta-strip {
        padding: 0 20px 80px;
    }

    .blog-cta-inner {
        flex-direction: column;
        align-items: flex-start;
        padding: 28px 22px;
    }

    .blog-cta-copy h3 {
        font-size: 1.4rem;
    }

    .article-title {
        font-size: 1.65rem;
    }

    .article-hero {
        height: 65vh;
    }

    .article-body-wrapper {
        padding: 48px 20px 80px;
    }

    .article-cta-block {
        padding: 36px 24px;
    }
}

@media (min-width: 769px) {
    .stat-item:not(:last-child)::after {
        content: '';
        position: absolute;
        right: 0;
        top: 25%;
        height: 50%;
        width: 1px;
        background-color: rgba(0, 0, 0, 0.1);
    }
}

@media (min-width: 600px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .footer-identity {
        grid-column: span 2;
    }
}


/* Base utilitaria de layout usada solo aquí */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--gutter-mobile);
    position: relative;
    z-index: 2;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--col-bilbao);
    color: white;
    padding: 8px;
    z-index: 2000;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}

/* Ajuste de main específico para página de contacto */
main {
    padding-top: var(--header-height);
}

/* HERO CONTACTO */
.contact-hero {
    background-color: var(--bg-global);
    padding: 80px 0 140px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.bg-blob {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(125, 198, 229, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    animation: float 20s infinite alternate;
}

.blob-1 {
    top: -200px;
    right: -200px;
}

.blob-2 {
    top: 20%;
    left: -300px;
    background: radial-gradient(circle, rgba(77, 138, 187, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
}

.hero-lead {
    font-size: 1.2rem;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

/* CONTENIDO CONTACTO */
.contact-content {
    margin-top: -100px;
    padding-bottom: var(--sp-xl);
    position: relative;
    z-index: 3;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

/* FORMULARIO */
.form-card {
    background: white;
    padding: 3rem;
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-float);
    border: 1px solid rgba(255, 255, 255, 0.8);
    position: relative;
    overflow: hidden;
    transition: height 0.3s ease;
}

.form-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--col-bilbao), var(--col-espiritu));
}

.form-header {
    margin-bottom: 2.5rem;
    text-align: center;
}

.form-title {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--col-herencia);
    margin-bottom: 0.5rem;
}

.form-subtitle {
    color: var(--text-gray);
    font-size: 1.1rem;
}

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

.form-group {
    position: relative;
}

.form-full {
    grid-column: 1 / -1;
}

.form-label {
    display: block;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--col-bilbao);
    margin-bottom: 0.5rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 1.1rem;
    border: 2px solid #E2E8F0;
    border-radius: 12px;
    font-family: inherit;
    font-size: 1rem;
    background-color: #F8FAFC;
    transition: all 0.3s ease;
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--col-bilbao);
    background-color: white;
    box-shadow: 0 4px 12px rgba(77, 138, 187, 0.15);
}

/* RADIO BUTTONS */
.radio-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-gray);
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    border: 2px solid #E2E8F0;
    transition: all 0.3s;
    background-color: white;
}

.radio-label:hover {
    border-color: var(--col-espiritu);
    background-color: #F8FAFC;
}

.radio-input {
    display: none;
}

.radio-icon {
    width: 20px;
    height: 20px;
    border: 2px solid #CBD5E1;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.radio-icon::after {
    content: '';
    width: 10px;
    height: 10px;
    background-color: white;
    border-radius: 50%;
    transform: scale(0);
    transition: transform 0.2s;
}

.radio-input:checked + .radio-icon::after {
    transform: scale(1);
}

.radio-input:checked + .radio-icon {
    border-color: var(--col-bilbao);
    background-color: var(--col-bilbao);
    color: white;
}

.radio-label:has(.radio-input:checked) {
    border-color: var(--col-bilbao);
    background-color: rgba(77, 138, 187, 0.05);
    color: var(--col-bilbao);
}

/* BOTÓN SUBMIT */
.btn-submit {
    background-color: var(--col-bilbao);
    color: white;
    border: none;
    padding: 1.2rem 3rem;
    border-radius: var(--radius-pill);
    font-weight: 800;
    font-size: 1.1rem;
    cursor: pointer;
    width: 100%;
    transition: all 0.3s;
    box-shadow: 0 10px 20px rgba(77, 138, 187, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-submit:hover {
    transform: translateY(-3px);
    background-color: var(--col-herencia);
    box-shadow: 0 15px 30px rgba(77, 138, 187, 0.4);
}

.btn-submit svg {
    width: 20px;
    height: 20px;
    animation: none;
}

.btn-submit.loading svg {
    animation: spin 1s linear infinite;
}

/* SUCCESS MESSAGE */
.success-message {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    height: 100%;
    min-height: 400px;
    animation: fadeIn 0.5s ease;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: #DEF7EC;
    color: #03543F;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

/* INFO DERECHA */
.info-stack {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding-top: 2rem;
}

.info-card {
    background: linear-gradient(135deg, var(--col-herencia) 0%, #2c3e50 100%);
    color: white;
    padding: 3rem;
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-float);
    position: relative;
    overflow: hidden;
}

.info-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.contact-list li {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 15px;
    font-size: 1.05rem;
}

.contact-list li:last-child {
    margin-bottom: 0;
}

.c-icon {
    font-size: 1.2rem;
    opacity: 0.7;
}

.c-link {
    color: white;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    padding-bottom: 2px;
    transition: border-color 0.3s;
}

.c-link:hover {
    border-color: white;
}

/* ACCIONES DIRECTAS */
.separator-text {
    text-align: center;
    color: var(--text-gray);
    font-weight: 600;
    margin: 1rem 0;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
}

.direct-actions {
    display: grid;
    gap: 1rem;
}

.btn-direct {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 1.2rem;
    border-radius: 16px;
    background: white;
    color: var(--col-bilbao);
    font-weight: 700;
    border: 2px solid #E2E8F0;
    transition: all 0.3s;
    box-shadow: var(--shadow-input);
}

.btn-direct:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
    border-color: var(--col-espiritu);
}

.btn-whatsapp {
    color: #25D366;
    border-color: #25D366;
    background: #f0fdf4;
}

.btn-whatsapp:hover {
    background: #25D366;
    color: white;
}

/* MAPA */
.map-container {
    height: 300px;
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-input);
    border: 4px solid white;
}

.map-frame {
    width: 100%;
    height: 100%;
    border: 0;
}

/* ANIMACIONES ESPECÍFICAS */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 1s var(--ease-expo);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

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

@keyframes spin {
    100% {
        transform: rotate(360deg);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* RESPONSIVE */
@media (min-width: 768px) {
    .form-card {
        padding: 4rem;
    }

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

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--gutter-desktop);
    }

    .contact-grid {
        grid-template-columns: 1.2fr 0.8fr;
        gap: 4rem;
    }
}

.admisiones-title {
    color: var(--col-bilbao);
    font-size: 64px;
    font-weight: 900;
}

.main-construction {
    flex-grow: 1;
    padding-top: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: center;
    padding-bottom: 64px;
    min-height: 60vh;
}

.construction-container {
    text-align: center;
    max-width: 800px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.construction-image {
    max-width: 100%;
    height: auto;
    max-height: 400px;
    border-radius: 16px;
    box-shadow: 0 12px 24px rgba(77, 138, 187, 0.15);
    margin-bottom: 32px;
    object-fit: cover;
}

.construction-title {
    font-size: 2.5rem;
    color: var(--col-bilbao);
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.construction-lead {
    font-size: 1.1rem;
    color: var(--col-herencia);
    margin-bottom: 32px;
    line-height: 1.6;
}

.btn-primary {
    display: inline-block;
    background-color: var(--col-bilbao);
    color: var(--text-light);
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: background-color 0.3s ease, transform 0.2s ease;
    box-shadow: 0 4px 12px rgba(77, 138, 187, 0.2);
}

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

.construction-title {
    color: var(--col-bilbao);
    margin-bottom: 0;
}

.article-main {
    padding-top: 0;
}

.blog-home {
    padding-top: var(--header-height);
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    min-height: 100vh;
}

.blog-home-hero {
    position: relative;
    padding: 64px 24px 40px;
    overflow: hidden;
}

.blog-home-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 10% 20%, rgba(125, 198, 229, 0.18), transparent 28%),
        radial-gradient(circle at 90% 10%, rgba(77, 138, 187, 0.12), transparent 30%);
    pointer-events: none;
}

.blog-home-hero .container {
    position: relative;
    z-index: 2;
}

.blog-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    border-radius: 999px;
    background: rgba(77, 138, 187, 0.08);
    color: var(--col-bilbao);
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.blog-home-title {
    max-width: 920px;
    font-size: clamp(2.4rem, 6vw, 5.2rem);
    line-height: 0.95;
    letter-spacing: -0.04em;
    color: var(--col-herencia);
    margin-bottom: 20px;
}

.blog-home-lead {
    max-width: 760px;
    font-size: 1.12rem;
    line-height: 1.8;
    color: var(--col-texto);
    opacity: 0.9;
    margin-bottom: 28px;
}

.blog-home-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.btn-blog-primary,
.btn-blog-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 54px;
    padding: 0 24px;
    border-radius: 999px;
    font-weight: 700;
    transition: all 0.3s ease;
}

.btn-blog-primary {
    background: var(--col-bilbao);
    color: #fff;
    box-shadow: 0 12px 30px rgba(77, 138, 187, 0.22);
}

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

.btn-blog-secondary {
    border: 1px solid var(--col-borde);
    background: #fff;
    color: var(--col-herencia);
}

.btn-blog-secondary:hover {
    transform: translateY(-2px);
    border-color: var(--col-bilbao);
    color: var(--col-bilbao);
}

.blog-featured {
    padding: 24px 24px 36px;
}

.blog-section-head {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 20px;
    margin-bottom: 28px;
}

.blog-section-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    color: var(--col-herencia);
    letter-spacing: -0.03em;
}

.blog-section-copy {
    max-width: 540px;
    color: var(--col-texto);
    opacity: 0.85;
}

.featured-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 1024px) {
    .featured-grid {
        grid-template-columns: 1.25fr 0.75fr;
        align-items: stretch;
    }
}

.featured-main-card {
    position: relative;
    min-height: 540px;
    border-radius: 32px;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(15, 23, 42, 0.12);
    background: #dbeafe;
}

.featured-main-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.featured-main-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: end;
    background: linear-gradient(180deg, rgba(0,0,0,0.08) 0%, rgba(15,23,42,0.82) 100%);
    padding: 32px;
}

.featured-main-content {
    color: #fff;
    max-width: 700px;
}

.post-kicker {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 9px 14px;
    border-radius: 999px;
    background: rgba(255,255,255,0.16);
    backdrop-filter: blur(10px);
    margin-bottom: 16px;
}

.featured-main-title {
    font-size: clamp(2rem, 4vw, 3.2rem);
    line-height: 1;
    letter-spacing: -0.035em;
    margin-bottom: 14px;
}

.featured-main-excerpt {
    font-size: 1rem;
    line-height: 1.75;
    opacity: 0.94;
    margin-bottom: 18px;
}

.post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    font-size: 0.95rem;
    opacity: 0.88;
}

.featured-side {
    display: grid;
    gap: 20px;
}

.mini-post-card {
    background: #fff;
    border: 1px solid var(--col-borde);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.04);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.mini-post-card:hover,
.post-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
}

.mini-post-card img,
.post-card img {
    width: 100%;
    display: block;
    object-fit: cover;
}

.mini-post-card img {
    height: 200px;
}

.mini-post-body,
.post-card-body {
    padding: 22px;
}

.mini-post-title {
    font-size: 1.25rem;
    line-height: 1.15;
    color: var(--col-herencia);
    margin: 10px 0 10px;
}

.mini-post-excerpt,
.post-card-excerpt {
    color: var(--col-texto);
    opacity: 0.85;
    line-height: 1.7;
}

.blog-posts {
    padding: 24px 24px 80px;
}

.posts-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 768px) {
    .posts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1200px) {
    .posts-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.post-card {
    background: #fff;
    border: 1px solid var(--col-borde);
    border-radius: 26px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.post-card img {
    height: 240px;
}

.post-card-title {
    font-size: 1.45rem;
    line-height: 1.1;
    color: var(--col-herencia);
    margin: 12px 0 10px;
    letter-spacing: -0.02em;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 18px;
    font-weight: 700;
    color: var(--col-bilbao);
}

.read-more:hover {
    color: var(--col-herencia);
}

.category-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 32px;
}

.filter-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 18px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid var(--col-borde);
    color: var(--col-herencia);
    font-weight: 700;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    border-color: var(--col-bilbao);
    color: var(--col-bilbao);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: var(--col-bilbao);
    color: #fff;
    border-color: var(--col-bilbao);
    box-shadow: 0 10px 20px rgba(77, 138, 187, 0.18);
}

.post-card.is-hidden {
    display: none;
}

.empty-state {
    display: none;
    padding: 40px 24px;
    border-radius: 24px;
    background: #fff;
    border: 1px solid var(--col-borde);
    text-align: center;
    color: var(--col-texto);
}

.empty-state.show {
    display: block;
}

.blog-cta {
    padding: 0 24px 110px;
}

.blog-cta-box {
    background: linear-gradient(135deg, var(--col-herencia), var(--col-bilbao));
    color: #fff;
    border-radius: 32px;
    padding: 40px 28px;
    text-align: center;
    box-shadow: 0 30px 60px rgba(55, 76, 105, 0.2);
}

.blog-cta-box h3 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    margin-bottom: 14px;
    letter-spacing: -0.03em;
}

.blog-cta-box p {
    max-width: 720px;
    margin: 0 auto 24px;
    line-height: 1.75;
    opacity: 0.95;
}

.fade-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.post-card-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 14px;
}

.post-card-categories .article-category {
    cursor: pointer;
}

.post-card.is-hidden {
    display: none;
}

.empty-state {
    display: none;
}
.empty-state.show {
    display: block;
}

.post-card {
    transition: opacity 0.2s ease;
}
.post-card.is-hidden {
    display: none;
}