/* Instituto Atlas - light clinical landing */

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

html {
    scroll-behavior: smooth;
    overflow-x: clip;
}

body {
    margin: 0;
    font-family: var(--font-body);
    font-size: var(--text-body);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--paper);
    -webkit-font-smoothing: antialiased;
    overflow-x: clip;
}

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

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

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

h1,
h2,
h3,
.brand-mark {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.08;
    margin: 0;
}

p {
    margin: 0;
}

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

svg.icon {
    width: 1.25rem;
    height: 1.25rem;
    stroke-width: var(--icon-stroke);
    flex-shrink: 0;
}

.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-4);
    z-index: var(--z-skip-link);
    padding: var(--space-3) var(--space-5);
    background: var(--graphite-950);
    color: var(--paper);
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

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

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .reveal {
        opacity: 1 !important;
        transform: none !important;
    }
}

.container {
    width: min(100% - 2rem, var(--container-max));
    margin-inline: auto;
}

.section {
    padding: var(--space-8) 0;
    position: relative;
}

@media (min-width: 1024px) {
    .section {
        padding: var(--space-9) 0;
    }
}

.section--soft {
    background: var(--stone-50);
}

.section-title {
    font-size: clamp(1.85rem, 3.2vw, 2.6rem);
    color: var(--text-primary);
    max-width: 16ch;
}

.section-title--center {
    margin-inline: auto;
    text-align: center;
}

.section-lead {
    margin-top: var(--space-3);
    color: var(--text-secondary);
    max-width: 28rem;
    font-size: 1.05rem;
}

.section-head {
    margin-bottom: var(--space-6);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    min-height: 3rem;
    padding: 0.8rem 1.45rem;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    white-space: nowrap;
    transition: background var(--duration-base) var(--ease-out),
        color var(--duration-base) var(--ease-out),
        border-color var(--duration-base) var(--ease-out),
        transform var(--duration-fast) var(--ease-out);
}

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

.btn-primary {
    background: var(--accent-solid);
    color: var(--paper);
}

.btn-primary:hover {
    background: var(--accent);
    color: var(--paper);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border);
}

.btn-secondary:hover {
    border-color: var(--graphite-950);
    background: var(--graphite-100);
}

/* Header - always light */
/* Concept project banner */
.concept-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 120;
    height: var(--concept-banner-h);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 0.75rem;
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: #1a1c1a;
    color: rgba(255, 255, 255, 0.78);
    line-height: 1;
}

.site-header {
    position: fixed;
    inset: var(--concept-banner-h) 0 auto 0;
    z-index: var(--z-header);
    height: var(--header-height);
    display: flex;
    align-items: center;
    background: rgba(251, 251, 252, 0.72);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
    transition: background var(--duration-base) var(--ease-out),
        border-color var(--duration-base) var(--ease-out);
}

.site-header.is-scrolled {
    background: rgba(251, 251, 252, 0.94);
    border-bottom-color: var(--border);
}

.nav-bar {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-5);
}

.nav-brand {
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
    color: var(--text-primary);
}

.nav-brand-name {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1;
}

.nav-brand-tag {
    font-size: 0.62rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 600;
}

.nav-links {
    display: none;
    align-items: center;
    gap: var(--space-1);
}

@media (min-width: 1024px) {
    .nav-links {
        display: flex;
    }
}

.nav-link {
    padding: 0.5rem 0.75rem;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-xs);
    transition: color 0.2s ease, background 0.2s ease;
}

.nav-link:hover,
.nav-link.is-active {
    color: var(--text-primary);
    background: var(--accent-soft);
}

.nav-cta {
    display: none;
}

@media (min-width: 1024px) {
    .nav-cta {
        display: inline-flex;
        min-height: 2.5rem;
        padding: 0.55rem 1.15rem;
    }
}

.menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.65rem;
    height: 2.65rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
}

@media (min-width: 1024px) {
    .menu-toggle {
        display: none;
    }
}

.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: var(--z-mobile-menu);
    visibility: hidden;
    pointer-events: none;
}

.mobile-menu.is-open {
    visibility: visible;
    pointer-events: auto;
}

.mobile-menu-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(20, 23, 28, 0.45);
    opacity: 0;
    transition: opacity var(--duration-base) ease;
}

.mobile-menu.is-open .mobile-menu-backdrop {
    opacity: 1;
}

.mobile-menu-panel {
    position: absolute;
    top: 0;
    right: 0;
    width: min(20rem, 88vw);
    height: 100%;
    height: 100dvh;
    background: #fbfbfc;
    padding: var(--space-6);
    padding-top: max(var(--space-6), env(safe-area-inset-top));
    padding-bottom: max(var(--space-6), env(safe-area-inset-bottom));
    transform: translateX(100%);
    transition: transform var(--duration-slow) var(--ease-out);
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    box-shadow: -12px 0 40px rgba(20, 23, 28, 0.18);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.mobile-menu.is-open .mobile-menu-panel {
    transform: translateX(0);
}

.mobile-menu-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-2);
}

.mobile-nav-list {
    display: grid;
    gap: var(--space-1);
    flex: 1;
}

.mobile-nav-link {
    display: block;
    padding: 0.85rem 0.75rem;
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-xs);
}

.mobile-nav-link:hover,
.mobile-nav-link:focus-visible {
    background: var(--stone-50);
    color: var(--text-primary);
}

/* ========== HERO ========== */
.hero {
    position: relative;
    min-height: 100dvh;
    display: grid;
    padding-top: calc(var(--header-height) + var(--concept-banner-h));
    background: var(--stone-50);
}

@media (min-width: 900px) {
    .hero {
        grid-template-columns: 1.15fr 0.85fr;
        align-items: stretch;
    }
}

.hero-visual {
    order: 1;
    min-height: 42vh;
    overflow: hidden;
    margin: var(--space-4);
    border-radius: var(--radius-lg);
}

@media (min-width: 900px) {
    .hero-visual {
        order: 2;
        min-height: calc(100dvh - var(--header-height) - 2rem);
        margin: var(--space-4) var(--space-4) var(--space-4) 0;
    }
}

.hero-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 20%;
}

.hero-panel {
    order: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-5) var(--space-5) var(--space-7);
    width: min(100%, 32rem);
    margin-inline: auto;
}

@media (min-width: 900px) {
    .hero-panel {
        order: 1;
        margin-inline: 0;
        padding-left: max(var(--space-6), calc((100vw - var(--container-max)) / 2));
        padding-right: var(--space-6);
    }
}

.hero-brand {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--accent-solid);
    margin-bottom: var(--space-4);
}

.hero-title {
    font-size: clamp(2.4rem, 5vw, 3.6rem);
    max-width: 10ch;
    margin-bottom: var(--space-4);
}

.hero-lead {
    color: var(--text-secondary);
    max-width: 28ch;
    font-size: 1.05rem;
    margin-bottom: var(--space-6);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

/* ========== MOSAIC ========== */
.mosaic {
    padding-top: var(--space-4);
}

.mosaic-grid {
    display: grid;
    gap: var(--space-4);
}

@media (min-width: 768px) {
    .mosaic-grid {
        grid-template-columns: 1.2fr 0.9fr 1fr;
        align-items: end;
    }
}

.mosaic-item {
    margin: 0;
    display: grid;
    gap: var(--space-2);
}

.mosaic-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-md);
    transition: transform 1s var(--ease-out);
}

.mosaic-item:hover img {
    transform: scale(1.02);
}

.mosaic-item--1 img {
    aspect-ratio: 4 / 3;
}

.mosaic-item--2 img {
    aspect-ratio: 3 / 4;
}

@media (min-width: 768px) {
    .mosaic-item--2 {
        margin-bottom: 3rem;
    }
}

.mosaic-item--3 img {
    aspect-ratio: 5 / 4;
}

.mosaic-item figcaption {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ========== ABOUT ========== */
.about-layout {
    display: grid;
    gap: var(--space-7);
    align-items: center;
}

@media (min-width: 960px) {
    .about-layout {
        grid-template-columns: 0.85fr 1.15fr;
        gap: var(--space-8);
    }
}

.about-text {
    margin-top: var(--space-4);
    color: var(--text-secondary);
    max-width: 32ch;
    font-size: 1.1rem;
}

.about-stack {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-4);
    align-items: end;
}

.about-stack-main {
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
    border-radius: var(--radius-md);
}

.about-stack-side {
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: 12%;
}

/* ========== SPECIALTIES ========== */
.joint-mosaic {
    display: grid;
    gap: var(--space-3);
    grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 768px) {
    .joint-mosaic {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-4);
    }
}

.joint-tile {
    display: grid;
    gap: var(--space-2);
    color: inherit;
}

.joint-tile-media {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
    aspect-ratio: 1;
    background: var(--stone-100);
}

.joint-tile-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s var(--ease-out);
}

.joint-tile:hover .joint-tile-media img {
    transform: scale(1.05);
}

.joint-tile-label {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

/* ========== PATH / HOW IT WORKS ========== */
.path {
    background: var(--stone-50);
}

.path-grid {
    display: grid;
    gap: var(--space-4);
}

@media (min-width: 900px) {
    .path-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.path-card {
    background: var(--paper);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.path-card img {
    width: 100%;
    aspect-ratio: 5 / 4;
    object-fit: cover;
}

.path-card-body {
    padding: var(--space-4) var(--space-4) var(--space-5);
}

.path-index {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--accent);
    margin-bottom: var(--space-2);
}

.path-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-2);
}

.path-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ========== TEAM ========== */
.team-grid {
    display: grid;
    gap: var(--space-5);
}

@media (min-width: 720px) {
    .team-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-4);
    }
}

.team-card {
    display: flex;
    flex-direction: column;
}

.team-photo {
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-3);
}

.team-card h3 {
    font-size: 1.15rem;
}

.team-role {
    display: block;
    font-size: var(--text-small);
    font-weight: 600;
    color: var(--accent-solid);
    margin: 0.15rem 0 var(--space-1);
}

.team-card p {
    color: var(--text-secondary);
    font-size: 0.92rem;
}

/* ========== QUOTES ========== */
.quote-row {
    display: grid;
    gap: var(--space-4);
    margin-top: var(--space-6);
}

@media (min-width: 768px) {
    .quote-row {
        grid-template-columns: repeat(3, 1fr);
    }
}

.quote-card {
    margin: 0;
    padding: var(--space-5);
    border-radius: var(--radius-md);
    background: var(--stone-50);
}

.quote-card blockquote {
    margin: 0 0 var(--space-4);
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 500;
    line-height: 1.35;
    color: var(--text-primary);
}

.quote-name {
    display: block;
    font-weight: 600;
    font-size: 0.92rem;
}

.quote-meta {
    display: block;
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-top: 0.15rem;
}

/* ========== FAQ ========== */
.faq-layout {
    display: grid;
    gap: var(--space-5);
}

@media (min-width: 900px) {
    .faq-layout {
        grid-template-columns: 0.7fr 1.3fr;
        align-items: start;
        gap: var(--space-8);
    }
}

.faq-list {
    display: grid;
    gap: var(--space-3);
}

.faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--paper);
    overflow: hidden;
}

.faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: 1.05rem 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
}

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

.faq-chevron {
    color: var(--accent);
    transition: transform 0.25s ease;
}

.faq-item[open] .faq-chevron {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 1.15rem 1.1rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ========== CONTACT ========== */
.contact-layout {
    display: grid;
    gap: var(--space-6);
}

@media (min-width: 960px) {
    .contact-layout {
        grid-template-columns: 1.15fr 0.85fr;
        gap: var(--space-6);
        align-items: stretch;
    }
}

.contact-visual {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 22rem;
}

.contact-visual > img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 22rem;
}

.contact-card {
    position: absolute;
    left: var(--space-4);
    right: var(--space-4);
    bottom: var(--space-4);
    padding: var(--space-5);
    background: rgba(251, 251, 252, 0.94);
    backdrop-filter: blur(12px);
    border-radius: var(--radius-md);
}

.contact-card h2 {
    font-size: clamp(1.4rem, 2.5vw, 1.85rem);
    margin-bottom: var(--space-3);
    max-width: 14ch;
}

.contact-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 0.35rem;
}

.contact-card a:hover {
    color: var(--text-primary);
}

.contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.contact-form {
    display: grid;
    gap: var(--space-4);
    padding: var(--space-6);
    background: var(--stone-50);
    border-radius: var(--radius-md);
    align-content: start;
}

.form-title {
    font-size: 1.35rem;
    margin-bottom: var(--space-1);
}

.form-row {
    display: grid;
    gap: var(--space-4);
}

@media (min-width: 640px) {
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}

.field {
    display: grid;
    gap: var(--space-1);
}

.field label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

.field input,
.field textarea {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    padding: 0.8rem 0.9rem;
    background: var(--paper);
    color: var(--text-primary);
    transition: border-color 0.2s ease;
}

.field input::placeholder,
.field textarea::placeholder {
    color: var(--graphite-500);
    opacity: 0.85;
}

.field input:focus,
.field textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.field textarea {
    min-height: 7rem;
    resize: vertical;
}

.form-note {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.form-status {
    display: none;
    padding: 0.85rem 1rem;
    border-radius: var(--radius-xs);
    background: var(--accent-soft);
    color: var(--text-primary);
    font-size: 0.95rem;
}

.form-status.is-visible {
    display: block;
}

.map-wrap {
    margin-top: var(--space-6);
}

.map-frame {
    border: 0;
    width: 100%;
    height: 16rem;
    border-radius: var(--radius-md);
    filter: grayscale(0.25) contrast(0.97);
}

/* Footer */
.site-footer {
    background: var(--graphite-900);
    color: var(--text-on-dark-soft);
    padding: var(--space-8) 0 var(--space-6);
}

.footer-grid {
    display: grid;
    gap: var(--space-7);
    margin-bottom: var(--space-7);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 1.4fr 1fr 1fr;
    }
}

.footer-brand {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--paper);
    margin-bottom: var(--space-3);
}

.footer-text {
    max-width: 22rem;
    line-height: 1.65;
}

.footer-col h3 {
    font-family: var(--font-body);
    font-size: var(--text-label);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: var(--space-4);
}

.footer-col a {
    display: block;
    padding: 0.25rem 0;
    color: var(--text-on-dark-soft);
    transition: color 0.2s ease;
}

.footer-col a:hover {
    color: var(--paper);
}

.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-5);
    border-top: 1px solid var(--border-on-dark);
    font-size: 0.85rem;
}

.footer-bottom a {
    color: rgba(251, 251, 252, 0.9);
    border-bottom: 1px solid var(--border-on-dark);
}

.footer-bottom a:hover {
    color: var(--paper);
}

/* Floating CTA */
.float-cta {
    position: fixed;
    right: max(1rem, env(safe-area-inset-right));
    bottom: max(1rem, env(safe-area-inset-bottom));
    z-index: var(--z-float-cta);
    width: 3.25rem;
    height: 3.25rem;
    border-radius: var(--radius-sm);
    background: var(--accent-solid);
    color: var(--paper);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-elevated);
    transition: transform var(--duration-base) var(--ease-out),
        background var(--duration-base) var(--ease-out);
}

.float-cta:hover {
    transform: translateY(-2px);
    background: var(--accent);
}

.float-cta .icon {
    width: 1.4rem;
    height: 1.4rem;
    stroke-width: 1.9;
}

/* Reveal */
.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity var(--duration-slow) ease, transform var(--duration-slow) var(--ease-out);
    transition-delay: var(--delay, 0s);
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 {
    --delay: 0.12s;
}

.reveal-delay-2 {
    --delay: 0.24s;
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--paper);
}

::-webkit-scrollbar-thumb {
    background: var(--graphite-300);
    border-radius: 8px;
}