/* ==========================================================================
   Academie Hetwing Nastrova
   Página principal
   Archivo: /_assets/_css/index.css
   ========================================================================== */

/* ==========================================================================
   1. Variables institucionales
   ========================================================================== */

:root {
    --ahn-color-white: #ffffff;
    --ahn-color-white-soft: #fbfbfa;
    --ahn-color-surface: #f6f6f4;
    --ahn-color-surface-alt: #efefec;

    --ahn-color-black: #101114;
    --ahn-color-text: #1b1d22;
    --ahn-color-text-soft: #555962;
    --ahn-color-text-muted: #757982;

    --ahn-color-navy: #08285f;
    --ahn-color-navy-dark: #041a42;
    --ahn-color-navy-soft: #e9eef6;

    --ahn-color-red: #c90000;
    --ahn-color-red-dark: #990000;
    --ahn-color-red-soft: #f8eaea;

    --ahn-color-border: rgba(8, 40, 95, 0.14);
    --ahn-color-border-dark: rgba(8, 40, 95, 0.28);

    --ahn-font-display: "Cormorant Garamond", Georgia, serif;
    --ahn-font-interface: "Jost", "Helvetica Neue", Arial, sans-serif;

    --ahn-container-wide: 1440px;
    --ahn-container-main: 1280px;
    --ahn-container-reading: 780px;

    --ahn-header-height: 108px;

    --ahn-radius-small: 4px;
    --ahn-radius-medium: 10px;
    --ahn-radius-large: 18px;

    --ahn-shadow-soft:
        0 18px 50px rgba(8, 40, 95, 0.07);

    --ahn-shadow-card:
        0 24px 70px rgba(8, 40, 95, 0.09);

    --ahn-transition-fast: 160ms ease;
    --ahn-transition-standard: 260ms ease;
    --ahn-transition-slow: 420ms ease;
}


/* ==========================================================================
   2. Base
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    min-width: 320px;
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--ahn-header-height) + 24px);
}

body {
    min-width: 320px;
    margin: 0;
    background: var(--ahn-color-white);
    color: var(--ahn-color-text);
    font-family: var(--ahn-font-interface);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.65;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.navigation-open {
    overflow: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
textarea,
select {
    font: inherit;
}

button {
    color: inherit;
}

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


/* ==========================================================================
   3. Accesibilidad
   ========================================================================== */

.skip-link {
    position: fixed;
    top: 14px;
    left: 14px;
    z-index: 9999;
    padding: 12px 18px;
    background: var(--ahn-color-navy);
    color: var(--ahn-color-white);
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transform: translateY(-160%);
    transition: transform var(--ahn-transition-fast);
}

.skip-link:focus {
    transform: translateY(0);
}

:focus-visible {
    outline: 2px solid var(--ahn-color-red);
    outline-offset: 4px;
}


/* ==========================================================================
   4. Header
   ========================================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid transparent;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    transition:
        min-height var(--ahn-transition-standard),
        border-color var(--ahn-transition-standard),
        box-shadow var(--ahn-transition-standard);
}

.site-header.is-scrolled {
    border-bottom-color: var(--ahn-color-border);
    box-shadow: 0 10px 35px rgba(8, 40, 95, 0.05);
}

.site-header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: min(
        calc(100% - 64px),
        var(--ahn-container-wide)
    );
    min-height: var(--ahn-header-height);
    margin: 0 auto;
    gap: 48px;
}

.institutional-brand {
    display: inline-flex;
    flex: 0 1 auto;
    align-items: center;
    min-width: 0;
    gap: 18px;
}

.institutional-brand__crest {
    width: 48px;
    height: 64px;
    object-fit: contain;
    flex: 0 0 auto;
}

.institutional-brand__identity {
    display: flex;
    min-width: 0;
    flex-direction: column;
    justify-content: center;
    gap: 2px;
}

.institutional-brand__name {
    color: var(--ahn-color-black);
    font-family: var(--ahn-font-display);
    font-size: clamp(1.5rem, 2vw, 2rem);
    font-style: italic;
    font-weight: 500;
    line-height: 1;
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.institutional-brand__descriptor {
    color: var(--ahn-color-text-muted);
    font-size: 0.62rem;
    font-weight: 400;
    line-height: 1.3;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    white-space: nowrap;
}

.primary-navigation {
    flex: 0 1 auto;
}

.primary-navigation__list {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    margin: 0;
    padding: 0;
    gap: clamp(22px, 2.5vw, 42px);
    list-style: none;
}

.primary-navigation__item {
    display: flex;
    align-items: center;
}

.primary-navigation__link {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    color: var(--ahn-color-black);
    font-size: 0.76rem;
    font-weight: 400;
    letter-spacing: 0.14em;
    line-height: 1;
    text-transform: uppercase;
    transition: color var(--ahn-transition-fast);
}

.primary-navigation__link::after {
    position: absolute;
    right: 0;
    bottom: 6px;
    left: 0;
    height: 1px;
    background: var(--ahn-color-red);
    content: "";
    transform: scaleX(0);
    transform-origin: right center;
    transition: transform var(--ahn-transition-standard);
}

.primary-navigation__link:hover,
.primary-navigation__link:focus-visible {
    color: var(--ahn-color-navy);
}

.primary-navigation__link:hover::after,
.primary-navigation__link:focus-visible::after {
    transform: scaleX(1);
    transform-origin: left center;
}

.navigation-toggle {
    display: none;
    width: 48px;
    height: 48px;
    padding: 0;
    background: transparent;
    border: 0;
    cursor: pointer;
}

.navigation-toggle__line {
    display: block;
    width: 25px;
    height: 1px;
    margin: 6px auto;
    background: var(--ahn-color-black);
    transition:
        transform var(--ahn-transition-standard),
        opacity var(--ahn-transition-fast);
}

.navigation-toggle[aria-expanded="true"] .navigation-toggle__line:first-child {
    transform: translateY(3.5px) rotate(45deg);
}

.navigation-toggle[aria-expanded="true"] .navigation-toggle__line:last-child {
    transform: translateY(-3.5px) rotate(-45deg);
}


/* ==========================================================================
   5. Botones
   ========================================================================== */

.button {
    display: inline-flex;
    min-height: 52px;
    align-items: center;
    justify-content: center;
    padding: 0 26px;
    border: 1px solid transparent;
    font-family: var(--ahn-font-interface);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.13em;
    line-height: 1;
    text-align: center;
    text-transform: uppercase;
    transition:
        background-color var(--ahn-transition-standard),
        border-color var(--ahn-transition-standard),
        color var(--ahn-transition-standard),
        transform var(--ahn-transition-standard);
}

.button:hover {
    transform: translateY(-2px);
}

.button--primary {
    background: var(--ahn-color-navy);
    border-color: var(--ahn-color-navy);
    color: var(--ahn-color-white);
}

.button--primary:hover,
.button--primary:focus-visible {
    background: var(--ahn-color-navy-dark);
    border-color: var(--ahn-color-navy-dark);
}

.button--secondary {
    background: transparent;
    border-color: var(--ahn-color-border-dark);
    color: var(--ahn-color-navy);
}

.button--secondary:hover,
.button--secondary:focus-visible {
    background: var(--ahn-color-navy);
    border-color: var(--ahn-color-navy);
    color: var(--ahn-color-white);
}

.button--accent {
    background: var(--ahn-color-red);
    border-color: var(--ahn-color-red);
    color: var(--ahn-color-white);
}

.button--accent:hover,
.button--accent:focus-visible {
    background: var(--ahn-color-red-dark);
    border-color: var(--ahn-color-red-dark);
}


/* ==========================================================================
   6. Hero
   ========================================================================== */

.hero {
    position: relative;
    overflow: hidden;
    background:
        linear-gradient(
            90deg,
            rgba(8, 40, 95, 0.025) 1px,
            transparent 1px
        ),
        linear-gradient(
            rgba(8, 40, 95, 0.025) 1px,
            transparent 1px
        ),
        var(--ahn-color-white);
    background-size: 72px 72px;
    border-bottom: 1px solid var(--ahn-color-border);
}

.hero::before {
    position: absolute;
    top: 0;
    right: -16vw;
    width: 55vw;
    height: 55vw;
    border: 1px solid rgba(8, 40, 95, 0.07);
    border-radius: 50%;
    content: "";
    pointer-events: none;
}

.hero::after {
    position: absolute;
    top: 14%;
    right: 4%;
    width: 13px;
    height: 160px;
    background:
        linear-gradient(
            to bottom,
            var(--ahn-color-red) 0 33.333%,
            var(--ahn-color-white) 33.333% 66.666%,
            var(--ahn-color-navy) 66.666% 100%
        );
    border: 1px solid var(--ahn-color-border);
    content: "";
    pointer-events: none;
}

.hero__container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(220px, 0.55fr);
    width: min(
        calc(100% - 64px),
        var(--ahn-container-main)
    );
    min-height: calc(100vh - var(--ahn-header-height));
    margin: 0 auto;
    padding: clamp(100px, 12vw, 180px) 0 72px;
    gap: 70px;
}

.hero__content {
    align-self: center;
    max-width: 850px;
}

.hero__eyebrow {
    display: flex;
    align-items: center;
    margin: 0 0 28px;
    color: var(--ahn-color-red);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.21em;
    text-transform: uppercase;
}

.hero__eyebrow::before {
    width: 56px;
    height: 1px;
    margin-right: 18px;
    background: var(--ahn-color-red);
    content: "";
}

.hero__title {
    max-width: 900px;
    margin: 0;
    color: var(--ahn-color-black);
    font-family: var(--ahn-font-display);
    font-size: clamp(4rem, 7.5vw, 7.5rem);
    font-weight: 400;
    letter-spacing: -0.055em;
    line-height: 0.87;
}

.hero__title::first-line {
    color: var(--ahn-color-navy);
}

.hero__description {
    max-width: 690px;
    margin: 42px 0 0;
    color: var(--ahn-color-text-soft);
    font-size: clamp(1rem, 1.35vw, 1.16rem);
    font-weight: 300;
    line-height: 1.8;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    margin-top: 42px;
    gap: 14px;
}

.hero__institutional-mark {
    display: flex;
    align-self: center;
    align-items: center;
    justify-content: center;
    gap: 18px;
    writing-mode: vertical-rl;
}

.hero__institutional-line {
    width: 1px;
    height: 100px;
    background: var(--ahn-color-border-dark);
}

.hero__institutional-text {
    color: var(--ahn-color-navy);
    font-family: var(--ahn-font-display);
    font-size: 0.86rem;
    font-weight: 600;
    letter-spacing: 0.5em;
}

.hero__statement {
    grid-column: 1 / -1;
    align-self: end;
    padding-top: 36px;
    border-top: 1px solid var(--ahn-color-border);
}

.hero__statement p {
    max-width: 1040px;
    margin: 0;
    color: var(--ahn-color-text-muted);
    font-family: var(--ahn-font-display);
    font-size: clamp(1.35rem, 2.2vw, 2rem);
    font-style: italic;
    line-height: 1.35;
}


/* ==========================================================================
   7. Encabezados de sección
   ========================================================================== */

.section-heading {
    display: grid;
    grid-template-columns: 90px minmax(0, 1fr);
    align-items: start;
    margin-bottom: 72px;
    gap: 30px;
}

.section-heading__index {
    padding-top: 8px;
    color: var(--ahn-color-red);
    font-family: var(--ahn-font-display);
    font-size: 1.4rem;
    font-style: italic;
}

.section-heading__content {
    max-width: 880px;
}

.section-heading__eyebrow {
    margin: 0 0 16px;
    color: var(--ahn-color-navy);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

.section-heading__title {
    margin: 0;
    color: var(--ahn-color-black);
    font-family: var(--ahn-font-display);
    font-size: clamp(2.8rem, 5vw, 5.2rem);
    font-weight: 400;
    letter-spacing: -0.045em;
    line-height: 0.98;
}

.section-heading__description {
    max-width: 720px;
    margin: 28px 0 0;
    color: var(--ahn-color-text-soft);
    font-size: 1.05rem;
    font-weight: 300;
    line-height: 1.8;
}

.section-heading--light .section-heading__index {
    color: rgba(255, 255, 255, 0.56);
}

.section-heading--light .section-heading__eyebrow {
    color: rgba(255, 255, 255, 0.7);
}

.section-heading--light .section-heading__title {
    color: var(--ahn-color-white);
}


/* ==========================================================================
   8. Áreas académicas
   ========================================================================== */

.academic-areas {
    background: var(--ahn-color-white);
}

.academic-areas__container {
    width: min(
        calc(100% - 64px),
        var(--ahn-container-main)
    );
    margin: 0 auto;
    padding: clamp(100px, 11vw, 170px) 0;
}

.academic-areas__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 1px solid var(--ahn-color-border);
    border-left: 1px solid var(--ahn-color-border);
}

.academic-card {
    position: relative;
    display: flex;
    min-height: 500px;
    flex-direction: column;
    padding: 34px;
    overflow: hidden;
    background: var(--ahn-color-white);
    border-right: 1px solid var(--ahn-color-border);
    border-bottom: 1px solid var(--ahn-color-border);
    transition:
        background-color var(--ahn-transition-standard),
        box-shadow var(--ahn-transition-standard),
        transform var(--ahn-transition-standard);
}

.academic-card::before {
    position: absolute;
    top: 0;
    right: 0;
    width: 0;
    height: 3px;
    background: var(--ahn-color-red);
    content: "";
    transition: width var(--ahn-transition-standard);
}

.academic-card:hover {
    z-index: 2;
    background: var(--ahn-color-white-soft);
    box-shadow: var(--ahn-shadow-card);
    transform: translateY(-6px);
}

.academic-card:hover::before {
    width: 100%;
}

.academic-card__header {
    display: flex;
    align-items: center;
    gap: 16px;
}

.academic-card__number {
    color: var(--ahn-color-red);
    font-family: var(--ahn-font-display);
    font-size: 1.15rem;
    font-style: italic;
}

.academic-card__rule {
    width: 42px;
    height: 1px;
    background: var(--ahn-color-border-dark);
}

.academic-card__body {
    flex: 1 1 auto;
    padding-top: 48px;
}

.academic-card__title {
    margin: 0;
    color: var(--ahn-color-navy);
    font-family: var(--ahn-font-display);
    font-size: clamp(2rem, 2.8vw, 2.8rem);
    font-weight: 500;
    letter-spacing: -0.035em;
    line-height: 1.02;
}

.academic-card__description {
    margin: 24px 0 0;
    color: var(--ahn-color-text-soft);
    font-size: 0.96rem;
    font-weight: 300;
    line-height: 1.75;
}

.academic-card__topics {
    display: flex;
    flex-wrap: wrap;
    margin: 30px 0 0;
    padding: 0;
    gap: 8px;
    list-style: none;
}

.academic-card__topic {
    padding: 7px 10px;
    background: var(--ahn-color-surface);
    color: var(--ahn-color-text-soft);
    font-size: 0.68rem;
    font-weight: 400;
    letter-spacing: 0.07em;
    line-height: 1.2;
    text-transform: uppercase;
}

.academic-card__footer {
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--ahn-color-border);
}

.academic-card__link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--ahn-color-navy);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.academic-card__link span {
    color: var(--ahn-color-red);
    font-size: 1rem;
    transition: transform var(--ahn-transition-fast);
}

.academic-card__link:hover span {
    transform: translate(4px, -4px);
}


/* ==========================================================================
   9. Programas
   ========================================================================== */

.programs {
    position: relative;
    overflow: hidden;
    background: var(--ahn-color-navy);
    color: var(--ahn-color-white);
}

.programs::before {
    position: absolute;
    top: -260px;
    right: -260px;
    width: 620px;
    height: 620px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    content: "";
}

.programs__container {
    position: relative;
    z-index: 1;
    width: min(
        calc(100% - 64px),
        var(--ahn-container-main)
    );
    margin: 0 auto;
    padding: clamp(100px, 11vw, 170px) 0;
}

.programs__grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 1px solid rgba(255, 255, 255, 0.16);
    border-left: 1px solid rgba(255, 255, 255, 0.16);
}

.program-card {
    display: flex;
    min-height: 430px;
    flex-direction: column;
    padding: 34px;
    border-right: 1px solid rgba(255, 255, 255, 0.16);
    border-bottom: 1px solid rgba(255, 255, 255, 0.16);
    transition:
        background-color var(--ahn-transition-standard),
        transform var(--ahn-transition-standard);
}

.program-card:hover {
    background: rgba(255, 255, 255, 0.06);
    transform: translateY(-5px);
}

.program-card__category {
    margin: 0;
    color: rgba(255, 255, 255, 0.58);
    font-size: 0.66rem;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.program-card__title {
    margin: 52px 0 0;
    color: var(--ahn-color-white);
    font-family: var(--ahn-font-display);
    font-size: clamp(2.5rem, 3.8vw, 4rem);
    font-weight: 400;
    letter-spacing: -0.04em;
    line-height: 1;
}

.program-card__description {
    flex: 1 1 auto;
    margin: 30px 0 0;
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.94rem;
    font-weight: 300;
    line-height: 1.8;
}

.program-card__link {
    display: inline-flex;
    align-self: flex-start;
    margin-top: 34px;
    padding-bottom: 5px;
    color: var(--ahn-color-white);
    border-bottom: 1px solid var(--ahn-color-red);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    transition:
        border-color var(--ahn-transition-fast),
        color var(--ahn-transition-fast);
}

.program-card__link:hover {
    color: #ffffff;
    border-color: #ffffff;
}


/* ==========================================================================
   10. Investigación
   ========================================================================== */

.research {
    background:
        linear-gradient(
            135deg,
            var(--ahn-color-white) 0%,
            var(--ahn-color-white) 65%,
            var(--ahn-color-surface) 65%,
            var(--ahn-color-surface) 100%
        );
}

.research__container {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
    align-items: center;
    width: min(
        calc(100% - 64px),
        var(--ahn-container-main)
    );
    margin: 0 auto;
    padding: clamp(110px, 12vw, 190px) 0;
    gap: clamp(70px, 9vw, 150px);
}

.research__eyebrow {
    margin: 0 0 20px;
    color: var(--ahn-color-red);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.21em;
    text-transform: uppercase;
}

.research__title {
    margin: 0;
    color: var(--ahn-color-navy);
    font-family: var(--ahn-font-display);
    font-size: clamp(3.4rem, 6vw, 6.2rem);
    font-weight: 400;
    letter-spacing: -0.05em;
    line-height: 0.92;
}

.research__description {
    max-width: 680px;
    margin: 34px 0 40px;
    color: var(--ahn-color-text-soft);
    font-size: 1.05rem;
    font-weight: 300;
    line-height: 1.85;
}

.research__quote {
    position: relative;
    margin: 0;
    padding: 56px 0 56px 48px;
    border-left: 2px solid var(--ahn-color-red);
}

.research__quote::before {
    position: absolute;
    top: -24px;
    left: 30px;
    color: rgba(8, 40, 95, 0.08);
    content: "“";
    font-family: var(--ahn-font-display);
    font-size: 12rem;
    line-height: 1;
}

.research__quote p {
    position: relative;
    z-index: 1;
    margin: 0;
    color: var(--ahn-color-black);
    font-family: var(--ahn-font-display);
    font-size: clamp(2rem, 3.3vw, 3.5rem);
    font-style: italic;
    line-height: 1.08;
}

.research__quote footer {
    margin-top: 28px;
    color: var(--ahn-color-text-muted);
    font-size: 0.68rem;
    font-style: normal;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}


/* ==========================================================================
   11. Admisiones
   ========================================================================== */

.admissions {
    background: var(--ahn-color-red);
    color: var(--ahn-color-white);
}

.admissions__container {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    width: min(
        calc(100% - 64px),
        var(--ahn-container-main)
    );
    margin: 0 auto;
    padding: clamp(80px, 9vw, 130px) 0;
    gap: 70px;
}

.admissions__content {
    max-width: 830px;
}

.admissions__eyebrow {
    margin: 0 0 16px;
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.21em;
    text-transform: uppercase;
}

.admissions__title {
    margin: 0;
    color: var(--ahn-color-white);
    font-family: var(--ahn-font-display);
    font-size: clamp(3.1rem, 5.8vw, 5.8rem);
    font-weight: 400;
    letter-spacing: -0.045em;
    line-height: 0.95;
}

.admissions__description {
    max-width: 690px;
    margin: 28px 0 0;
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    font-weight: 300;
    line-height: 1.8;
}

.admissions .button--accent {
    background: var(--ahn-color-white);
    border-color: var(--ahn-color-white);
    color: var(--ahn-color-red);
}

.admissions .button--accent:hover,
.admissions .button--accent:focus-visible {
    background: var(--ahn-color-navy);
    border-color: var(--ahn-color-navy);
    color: var(--ahn-color-white);
}


/* ==========================================================================
   12. Footer
   ========================================================================== */

.site-footer {
    background: var(--ahn-color-navy-dark);
    color: var(--ahn-color-white);
}

.site-footer__container {
    width: min(
        calc(100% - 64px),
        var(--ahn-container-wide)
    );
    margin: 0 auto;
    padding: 90px 0 32px;
}

.site-footer__identity {
    display: flex;
    align-items: center;
    margin-bottom: 72px;
    padding-bottom: 52px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
    gap: 22px;
}

.site-footer__crest {
    width: 58px;
    height: 78px;
    object-fit: contain;
    background: var(--ahn-color-white);
}

.site-footer__name {
    margin: 0;
    font-family: var(--ahn-font-display);
    font-size: clamp(2rem, 3vw, 3.2rem);
    font-style: italic;
    font-weight: 400;
    letter-spacing: -0.025em;
    line-height: 1;
}

.site-footer__descriptor {
    margin: 9px 0 0;
    color: rgba(255, 255, 255, 0.56);
    font-size: 0.65rem;
    font-weight: 400;
    letter-spacing: 0.17em;
    text-transform: uppercase;
}

.site-footer__columns {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 36px;
}

.site-footer__column-title {
    margin: 0 0 22px;
    color: rgba(255, 255, 255, 0.56);
    font-size: 0.66rem;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.site-footer__links {
    display: grid;
    margin: 0;
    padding: 0;
    gap: 12px;
    list-style: none;
}

.site-footer__link {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.84rem;
    font-weight: 300;
    line-height: 1.4;
    transition:
        color var(--ahn-transition-fast),
        padding-left var(--ahn-transition-fast);
}

.site-footer__link:hover,
.site-footer__link:focus-visible {
    padding-left: 5px;
    color: var(--ahn-color-white);
}

.site-footer__bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 72px;
    padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
    gap: 24px;
}

.site-footer__bottom p {
    margin: 0;
    color: rgba(255, 255, 255, 0.46);
    font-size: 0.64rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}


/* ==========================================================================
   13. Adaptación para portátiles
   ========================================================================== */

@media (max-width: 1240px) {
    :root {
        --ahn-header-height: 94px;
    }

    .site-header__container {
        width: min(calc(100% - 48px), var(--ahn-container-wide));
        gap: 28px;
    }

    .institutional-brand__descriptor {
        display: none;
    }

    .primary-navigation__list {
        gap: 22px;
    }

    .primary-navigation__link {
        font-size: 0.68rem;
    }

    .hero__container,
    .academic-areas__container,
    .programs__container,
    .research__container,
    .admissions__container {
        width: min(calc(100% - 48px), var(--ahn-container-main));
    }

    .academic-areas__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .programs__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .site-footer__container {
        width: min(calc(100% - 48px), var(--ahn-container-wide));
    }

    .site-footer__columns {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        row-gap: 54px;
    }
}


/* ==========================================================================
   14. Navegación móvil y tablet
   ========================================================================== */

@media (max-width: 960px) {
    :root {
        --ahn-header-height: 86px;
    }

    .site-header__container {
        width: min(calc(100% - 36px), var(--ahn-container-wide));
        min-height: var(--ahn-header-height);
    }

    .institutional-brand__crest {
        width: 40px;
        height: 54px;
    }

    .institutional-brand__name {
        font-size: 1.45rem;
    }

    .navigation-toggle {
        position: relative;
        z-index: 1002;
        display: block;
        flex: 0 0 auto;
    }

    .primary-navigation {
        position: fixed;
        inset: var(--ahn-header-height) 0 0;
        z-index: 1001;
        display: flex;
        visibility: hidden;
        align-items: flex-start;
        justify-content: center;
        padding: 62px 32px;
        overflow-y: auto;
        background: rgba(255, 255, 255, 0.99);
        opacity: 0;
        transform: translateY(-18px);
        transition:
            opacity var(--ahn-transition-standard),
            transform var(--ahn-transition-standard),
            visibility var(--ahn-transition-standard);
    }

    .primary-navigation.is-open,
    .navigation-toggle[aria-expanded="true"] + .primary-navigation {
        visibility: visible;
        opacity: 1;
        transform: translateY(0);
    }

    .primary-navigation__list {
        width: min(100%, 620px);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    .primary-navigation__item {
        border-bottom: 1px solid var(--ahn-color-border);
    }

    .primary-navigation__link {
        display: flex;
        min-height: 70px;
        justify-content: space-between;
        font-family: var(--ahn-font-display);
        font-size: 2rem;
        font-weight: 400;
        letter-spacing: -0.02em;
        text-transform: none;
    }

    .primary-navigation__link::before {
        order: 2;
        color: var(--ahn-color-red);
        content: "↗";
        font-family: var(--ahn-font-interface);
        font-size: 1rem;
    }

    .primary-navigation__link::after {
        display: none;
    }

    .hero__container {
        grid-template-columns: minmax(0, 1fr);
        width: min(calc(100% - 36px), var(--ahn-container-main));
        min-height: auto;
        padding: 110px 0 54px;
        gap: 58px;
    }

    .hero__content {
        max-width: 760px;
    }

    .hero__institutional-mark {
        display: none;
    }

    .hero__statement {
        grid-column: auto;
    }

    .academic-areas__container,
    .programs__container,
    .research__container,
    .admissions__container {
        width: min(calc(100% - 36px), var(--ahn-container-main));
    }

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

    .research__quote {
        max-width: 700px;
    }

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

    .admissions__action {
        justify-self: start;
    }
}


/* ==========================================================================
   15. Tablet vertical
   ========================================================================== */

@media (max-width: 760px) {
    .section-heading {
        grid-template-columns: 1fr;
        margin-bottom: 50px;
        gap: 8px;
    }

    .section-heading__index {
        padding-top: 0;
    }

    .academic-areas__grid,
    .programs__grid {
        grid-template-columns: 1fr;
    }

    .academic-card {
        min-height: auto;
    }

    .program-card {
        min-height: 380px;
    }

    .site-footer__columns {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .site-footer__bottom {
        align-items: flex-start;
        flex-direction: column;
    }
}


/* ==========================================================================
   16. Móviles
   ========================================================================== */

@media (max-width: 560px) {
    :root {
        --ahn-header-height: 78px;
    }

    .site-header__container {
        width: calc(100% - 28px);
    }

    .institutional-brand {
        gap: 11px;
    }

    .institutional-brand__crest {
        width: 34px;
        height: 47px;
    }

    .institutional-brand__name {
        max-width: 195px;
        overflow: hidden;
        font-size: 1.22rem;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .hero::after {
        display: none;
    }

    .hero__container {
        width: calc(100% - 28px);
        padding: 84px 0 42px;
    }

    .hero__eyebrow {
        margin-bottom: 22px;
        font-size: 0.62rem;
        letter-spacing: 0.17em;
    }

    .hero__eyebrow::before {
        width: 30px;
        margin-right: 12px;
    }

    .hero__title {
        font-size: clamp(3.4rem, 18vw, 5.3rem);
        line-height: 0.9;
    }

    .hero__description {
        margin-top: 30px;
        font-size: 0.96rem;
    }

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

    .button {
        width: 100%;
    }

    .hero__statement {
        padding-top: 28px;
    }

    .hero__statement p {
        font-size: 1.25rem;
    }

    .academic-areas__container,
    .programs__container,
    .research__container,
    .admissions__container {
        width: calc(100% - 28px);
        padding-top: 90px;
        padding-bottom: 90px;
    }

    .section-heading__title {
        font-size: 2.8rem;
    }

    .academic-areas__grid,
    .programs__grid {
        border-left: 0;
    }

    .academic-card,
    .program-card {
        padding: 28px 22px;
        border-left: 1px solid var(--ahn-color-border);
    }

    .program-card {
        border-left-color: rgba(255, 255, 255, 0.16);
    }

    .academic-card__body {
        padding-top: 38px;
    }

    .academic-card__title {
        font-size: 2.25rem;
    }

    .research {
        background: var(--ahn-color-white);
    }

    .research__title,
    .admissions__title {
        font-size: 3.15rem;
    }

    .research__quote {
        padding: 42px 0 42px 24px;
    }

    .research__quote p {
        font-size: 2rem;
    }

    .site-footer__container {
        width: calc(100% - 28px);
        padding-top: 70px;
    }

    .site-footer__identity {
        align-items: flex-start;
        margin-bottom: 56px;
    }

    .site-footer__crest {
        width: 48px;
        height: 66px;
    }

    .site-footer__name {
        font-size: 2rem;
    }

    .site-footer__columns {
        grid-template-columns: 1fr;
        gap: 42px;
    }

    .site-footer__bottom {
        margin-top: 56px;
    }
}


/* ==========================================================================
   17. Preferencias de movimiento reducido
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}


/* ==========================================================================
   18. Impresión
   ========================================================================== */

@media print {
    .site-header,
    .hero__actions,
    .navigation-toggle,
    .admissions__action {
        display: none;
    }

    body {
        background: #ffffff;
        color: #000000;
    }

    .hero__container,
    .academic-areas__container,
    .programs__container,
    .research__container,
    .admissions__container,
    .site-footer__container {
        width: 100%;
        padding: 32px 0;
    }

    .programs,
    .admissions,
    .site-footer {
        background: #ffffff;
        color: #000000;
    }

    .section-heading--light .section-heading__title,
    .program-card__title,
    .site-footer__name {
        color: #000000;
    }
}