:root {
    --color-bg: #0d0f1a;
    --color-bg-alt: #12162a;
    --color-light: #f5f7fa;
    --color-muted: rgba(245, 247, 250, 0.75);
    --color-accent: #e94e77;
    --color-accent-dark: #b33657;
    --color-card: rgba(13, 15, 26, 0.65);
    --color-border: rgba(255, 255, 255, 0.08);
    --max-width: 1100px;
    --transition: all 0.35s ease;
    font-size: 16px;
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--color-light);
    background-color: var(--color-bg);
    line-height: 1.7;
}

body.is-loading .hero__video,
body.is-loading .hero__content {
    opacity: 0;
}

body[data-theme="light"] {
    --color-bg: #f6f7fb;
    --color-bg-alt: #ffffff;
    --color-light: #161830;
    --color-muted: rgba(22, 24, 48, 0.7);
    --color-card: rgba(255, 255, 255, 0.82);
    --color-border: rgba(22, 24, 48, 0.15);
    background-color: var(--color-bg);
}

body[data-contrast="high"] {
    --color-bg: #000;
    --color-bg-alt: #050505;
    --color-light: #ffffff;
    --color-muted: rgba(255, 255, 255, 0.85);
    --color-accent: #ffbf00;
    --color-accent-dark: #e0a400;
    --color-border: rgba(255, 255, 255, 0.35);
    background-color: var(--color-bg);
}

img {
    max-width: 100%;
    display: block;
    border-radius: 18px;
}

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

.container {
    width: min(92%, var(--max-width));
    margin: 0 auto;
}

.section {
    padding: 5.5rem 0;
}

.section--light {
    background: linear-gradient(180deg, #111428 0%, #161a32 100%);
}

.section--dark {
    background: radial-gradient(circle at top, #1d2242, #0d0f1a 70%);
}

.section--accent {
    background: radial-gradient(circle at top, rgba(233, 78, 119, 0.15), rgba(13, 15, 26, 1) 70%);
}

.section__intro {
    max-width: 640px;
    margin-bottom: 2.5rem;
}

.section__intro h2 {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
    font-size: clamp(2rem, 3vw, 2.7rem);
    margin-bottom: 1rem;
}

.section__intro p {
    color: var(--color-muted);
}

.section__intro--center {
    text-align: center;
    margin: 0 auto 2.5rem;
}

.site-header {
    position: relative;
}

.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1rem 4vw;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: rgba(13, 15, 26, 0.8);
    backdrop-filter: blur(14px);
}

body[data-theme="light"] .nav {
    background: rgba(246, 247, 251, 0.85);
}

.logo {
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav.is-scrolled .logo {
    transform: scale(0.88);
    opacity: 0.85;
}

.nav__links {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav__actions {
    display: flex;
    gap: 0.6rem;
    margin-left: 1.5rem;
}

.nav__action {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-light);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 30px;
    padding: 0.4rem 1rem;
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition);
}

body[data-theme="light"] .nav__action {
    background: rgba(22, 24, 48, 0.06);
    border-color: rgba(22, 24, 48, 0.12);
}

.nav__action:hover,
.nav__action:focus,
.nav__action[aria-pressed="true"] {
    background: var(--color-accent);
    border-color: var(--color-accent);
}

.nav__links a {
    position: relative;
    padding: 0.25rem 0;
    font-size: 0.95rem;
    color: var(--color-muted);
    transition: var(--transition);
}

.nav__links a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -0.3rem;
    width: 100%;
    height: 2px;
    border-radius: 10px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: var(--transition);
}

.nav__links a:hover,
.nav__links a:focus,
.nav__links a.is-active {
    color: var(--color-light);
}

body[data-theme="light"] .nav__links a {
    color: rgba(22, 24, 48, 0.65);
}

body[data-theme="light"] .nav__links a:hover,
body[data-theme="light"] .nav__links a:focus,
body[data-theme="light"] .nav__links a.is-active {
    color: var(--color-light);
}

.nav__links a:hover::after,
.nav__links a:focus::after,
.nav__links a.is-active::after {
    transform: scaleX(1);
    transform-origin: left;
}

.nav__toggle {
    display: none;
    font-size: 1.6rem;
    background: none;
    border: none;
    color: var(--color-light);
    cursor: pointer;
}

.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.08);
    z-index: 1200;
}

.progress-bar__inner {
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-dark));
    transition: width 0.2s ease-out;
}

.hero {
    position: relative;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-size: cover;
    background-position: center 20%;
}

.hero__particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 1;
}

.hero__particles span {
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(233, 78, 119, 0.28);
    animation: floatUp 14s linear infinite;
}

.hero__particles span:nth-child(odd) {
    background: rgba(233, 78, 119, 0.45);
}

.hero__particles span:nth-child(1) { left: 6%; animation-delay: 0s; }
.hero__particles span:nth-child(2) { left: 14%; animation-delay: 2s; }
.hero__particles span:nth-child(3) { left: 22%; animation-delay: 4s; }
.hero__particles span:nth-child(4) { left: 30%; animation-delay: 6s; }
.hero__particles span:nth-child(5) { left: 38%; animation-delay: 3s; }
.hero__particles span:nth-child(6) { left: 46%; animation-delay: 7s; }
.hero__particles span:nth-child(7) { left: 54%; animation-delay: 1.5s; }
.hero__particles span:nth-child(8) { left: 62%; animation-delay: 5s; }
.hero__particles span:nth-child(9) { left: 70%; animation-delay: 8s; }
.hero__particles span:nth-child(10) { left: 78%; animation-delay: 9.5s; }
.hero__particles span:nth-child(11) { left: 86%; animation-delay: 11s; }
.hero__particles span:nth-child(12) { left: 26%; animation-delay: 12.5s; }
.hero__particles span:nth-child(13) { left: 48%; animation-delay: 10.5s; }
.hero__particles span:nth-child(14) { left: 66%; animation-delay: 13s; }
.hero__particles span:nth-child(15) { left: 92%; animation-delay: 14s; }

.hero__skeleton {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(35, 40, 70, 0.6) 25%, rgba(50, 60, 100, 0.7) 50%, rgba(35, 40, 70, 0.6) 75%);
    background-size: 400% 100%;
    animation: shimmer 2.2s infinite;
    z-index: 1;
}

.hero__skeleton.is-hidden {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.hero__media {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}

.hero__video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 20%;
    filter: saturate(0.8) brightness(0.8);
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(13, 15, 26, 0.2) 0%, rgba(13, 15, 26, 0.9) 100%);
    transition: opacity 0.3s ease;
}

.hero__content {
    position: relative;
    text-align: center;
    max-width: 680px;
    padding: 0 2rem;
    z-index: 2;
}

.hero__cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero__eyebrow {
    display: inline-block;
    letter-spacing: 0.32em;
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 1.8rem;
}

.hero h1 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2.8rem, 5vw, 4.2rem);
    margin-bottom: 1rem;
}

.hero p {
    color: var(--color-muted);
    margin-bottom: 2.5rem;
}

.cta {
    display: inline-block;
    background: var(--color-accent);
    color: var(--color-light);
    padding: 0.9rem 2.4rem;
    border-radius: 30px;
    font-weight: 600;
    transition: var(--transition);
}

.cta:hover,
.cta:focus {
    background: var(--color-accent-dark);
    transform: translateY(-2px);
}

.cta--ghost {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: var(--color-light);
}

.cta--ghost:hover,
.cta--ghost:focus {
    border-color: var(--color-accent);
    background: rgba(233, 78, 119, 0.12);
}

body[data-theme="light"] .cta--ghost {
    border-color: rgba(22, 24, 48, 0.2);
    color: var(--color-light);
    background: rgba(22, 24, 48, 0.03);
}

body[data-theme="light"] .cta--ghost:hover,
body[data-theme="light"] .cta--ghost:focus {
    background: rgba(233, 78, 119, 0.1);
}
.download-card__button svg {
    width: 18px;
    height: 18px;
}

.section-separator {
    position: relative;
    height: 60px;
    overflow: hidden;
    background: transparent;
}

.section-separator svg {
    width: 100%;
    height: 100%;
    display: block;
    fill: rgba(233, 78, 119, 0.12);
}

.hero--cta-hover .hero__overlay {
    opacity: 0.95;
}

.story-grid {
    display: grid;
    gap: 1.8rem;
}

.story-card {
    padding: 2.2rem;
    background: rgba(15, 18, 33, 0.55);
    border-radius: 22px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.story-card:hover {
    transform: translateY(-6px);
    border-color: rgba(233, 78, 119, 0.4);
}

.story-card h3 {
    font-family: 'Playfair Display', serif;
    margin-bottom: 1rem;
}

.timeline {
    position: relative;
    margin-top: 3rem;
    padding-left: 1.5rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0.3rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, rgba(233, 78, 119, 0.6), rgba(255, 255, 255, 0));
}

.timeline__item {
    position: relative;
    padding-left: 1.8rem;
    margin-bottom: 2.4rem;
}

.timeline__item:last-child {
    margin-bottom: 0;
}

.timeline__item::before {
    content: '';
    position: absolute;
    left: -0.7rem;
    top: 0.45rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-accent);
    box-shadow: 0 0 0 8px rgba(233, 78, 119, 0.1);
}

.timeline__year {
    display: inline-block;
    font-size: 0.9rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 0.6rem;
    color: var(--color-accent);
}

.timeline__content {
    background: var(--color-card);
    border-radius: 20px;
    padding: 1.6rem 1.8rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.timeline__detail {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--color-muted);
    opacity: 0;
    transform: translateY(10px);
    transition: var(--transition);
}

.timeline__content:hover {
    border-color: rgba(233, 78, 119, 0.35);
    transform: translateY(-6px);
}

.timeline__content:hover .timeline__detail {
    opacity: 1;
    transform: translateY(0);
}

.references-slider {
    display: flex;
    gap: 1.5rem;
    overflow: hidden;
    scroll-snap-type: x mandatory;
    transition: transform 0.45s ease;
}

.references-slider.is-paused .reference-card {
    opacity: 1;
}

.reference-card {
    flex: 0 0 100%;
    scroll-snap-align: center;
    background: rgba(18, 22, 40, 0.7);
    border-radius: 24px;
    padding: 2.2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
    opacity: 0.85;
}

.reference-card.is-active {
    opacity: 1;
    transform: scale(1.02);
    border-color: rgba(233, 78, 119, 0.35);
}

.reference-card:hover {
    transform: translateY(-8px);
    border-color: rgba(233, 78, 119, 0.35);
}

.reference-card__author {
    display: block;
    margin-top: 1.6rem;
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-muted);
}

.references-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.references-btn {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(15, 18, 33, 0.8);
    color: var(--color-light);
    cursor: pointer;
    font-size: 1.4rem;
    transition: var(--transition);
}

.references-btn:hover,
.references-btn:focus {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.pandemic-grid {
    display: grid;
    gap: 1.8rem;
}

.pandemic-card,
.pandemic-quote {
    background: rgba(18, 20, 35, 0.7);
    border-radius: 22px;
    padding: 2.2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

blockquote {
    font-family: 'Playfair Display', serif;
    font-size: 1.4rem;
    line-height: 1.5;
    color: var(--color-light);
}

.cards {
    display: grid;
    gap: 1.8rem;
}

.cards--three {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.cards--four {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.card {
    background: rgba(18, 22, 40, 0.75);
    border-radius: 22px;
    padding: 2.2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-6px);
    border-color: rgba(233, 78, 119, 0.35);
}

.portfolio-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.portfolio-card {
    background: rgba(15, 18, 33, 0.8);
    border-radius: 26px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
}

.portfolio-card:hover {
    transform: translateY(-8px);
    border-color: rgba(233, 78, 119, 0.3);
}

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

.portfolio-card img {
    border-radius: 0;
    height: 240px;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.portfolio-card__content {
    padding: 2rem;
}

.portfolio-card:hover img {
    transform: scale(1.08);
}

.portfolio-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(7, 9, 20, 0) 50%, rgba(7, 9, 20, 0.85) 100%);
    opacity: 0;
    transition: opacity 0.6s ease;
    pointer-events: none;
}

.portfolio-card:hover::after {
    opacity: 1;
}

.portfolio-hint {
    display: none;
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-muted);
}

.portfolio-card__meta {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: 0.8rem;
}

.portfolio-filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.portfolio-filter {
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--color-muted);
    background: transparent;
    border-radius: 999px;
    padding: 0.55rem 1.6rem;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.portfolio-filter.is-active,
.portfolio-filter:hover,
.portfolio-filter:focus {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-light);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1.4rem;
}

.tech-chip {
    background: rgba(18, 22, 40, 0.6);
    border-radius: 18px;
    padding: 0.9rem 1.2rem;
    text-align: center;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.tech-chip:hover {
    transform: translateY(-4px);
    border-color: rgba(233, 78, 119, 0.3);
}

.lifestyle-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    align-items: center;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.metric {
    background: rgba(15, 18, 33, 0.7);
    border-radius: 24px;
    padding: 2.2rem 2rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.metric__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 16px;
    background: rgba(233, 78, 119, 0.18);
    margin-bottom: 1rem;
}

.metric__icon svg {
    width: 26px;
    height: 26px;
    fill: var(--color-accent);
}

.metric__value {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2.4rem, 5vw, 3.4rem);
    color: var(--color-accent);
    display: block;
}

.metric__label {
    display: block;
    margin-top: 0.8rem;
    color: var(--color-muted);
}

.media-logos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1.4rem;
}

.media-logo {
    display: grid;
    place-items: center;
    padding: 1.6rem;
    background: rgba(15, 18, 33, 0.65);
    border-radius: 18px;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.media-logo:hover,
.media-logo:focus {
    transform: translateY(-4px);
    border-color: rgba(233, 78, 119, 0.35);
}

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.2rem;
}

.gallery img {
    transition: transform 0.3s ease;
}

.gallery img:hover {
    transform: scale(1.02);
}

.gallery__item {
    cursor: zoom-in;
}

.download-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding: 2.6rem;
    border-radius: 28px;
    background: rgba(15, 18, 33, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.download-card__text h2 {
    font-family: 'Playfair Display', serif;
    margin-bottom: 0.6rem;
}

.download-card__text p {
    color: var(--color-muted);
}

.download-card__button {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.85rem 2.2rem;
    border-radius: 30px;
    border: none;
    background: var(--color-accent);
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.download-card__button:hover,
.download-card__button:focus {
    background: var(--color-accent-dark);
    transform: translateY(-2px);
}

[data-parallax] {
    will-change: transform;
}

.contact {
    max-width: 520px;
    margin: 0 auto;
    text-align: center;
}

.contact-form {
    display: grid;
    gap: 1.2rem;
    margin-top: 2rem;
}

.contact-form label {
    text-align: left;
    font-size: 0.9rem;
    color: var(--color-muted);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    margin-top: 0.4rem;
    padding: 0.9rem 1rem;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(13, 15, 26, 0.75);
    color: var(--color-light);
    font: inherit;
}

.form-error {
    display: block;
    font-size: 0.75rem;
    color: var(--color-accent);
    margin-top: 0.3rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.form-error.is-visible {
    opacity: 1;
}

.contact-form button {
    justify-self: center;
    padding: 0.9rem 2.6rem;
    border-radius: 30px;
    border: none;
    background: var(--color-accent);
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.contact-form button:hover,
.contact-form button:focus {
    background: var(--color-accent-dark);
    transform: translateY(-2px);
}

.contact-form input.is-invalid,
.contact-form textarea.is-invalid {
    border-color: rgba(233, 78, 119, 0.6);
    background: rgba(233, 78, 119, 0.08);
}

.footer {
    padding: 2rem 0;
    background: rgba(9, 10, 18, 0.95);
    text-align: center;
    color: var(--color-muted);
    font-size: 0.85rem;
}

[data-animate] {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].is-visible {
    opacity: 1;
    transform: translateY(0);
}

.modal {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1200;
}

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

.modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(5, 7, 15, 0.85);
    backdrop-filter: blur(6px);
}

.modal__content {
    position: relative;
    background: rgba(17, 20, 35, 0.95);
    padding: 2.6rem;
    border-radius: 22px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    width: min(90%, 600px);
    z-index: 1;
}

.modal__content h3 {
    font-family: 'Playfair Display', serif;
    margin-bottom: 1.2rem;
}

.modal__content p + p {
    margin-top: 1.2rem;
}

.modal__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-light);
    font-size: 1.4rem;
    cursor: pointer;
    transition: var(--transition);
}

.modal__close:hover,
.modal__close:focus {
    background: var(--color-accent);
}

.modal-trigger {
    margin-top: 1.6rem;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: var(--color-muted);
    padding: 0.6rem 1.4rem;
    border-radius: 999px;
    cursor: pointer;
    transition: var(--transition);
}

.modal-trigger:hover,
.modal-trigger:focus {
    border-color: var(--color-accent);
    color: var(--color-light);
}

.lightbox {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.88);
    z-index: 1300;
    padding: 2rem;
}

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

.lightbox__image {
    max-width: 90vw;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 12px;
}

.lightbox__nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: none;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    font-size: 1.6rem;
    cursor: pointer;
    transition: var(--transition);
}

.lightbox__nav:hover,
.lightbox__nav:focus {
    background: rgba(233, 78, 119, 0.75);
}

.lightbox__nav--prev {
    left: 1rem;
}

.lightbox__nav--next {
    right: 1rem;
}

.lightbox__close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: #fff;
    font-size: 2rem;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.lightbox__close:hover,
.lightbox__close:focus {
    background: var(--color-accent);
}

.hero__content,
.nav,
.modal,
.lightbox {
    transition-property: opacity, transform, background, border-color;
}

.hero__content {
    transition-duration: 0.6s;
}

.nav__links a,
.portfolio-filter,
.tech-chip,
.media-logo,
.card,
.story-card,
.quick-nav__item {
    transition: var(--transition);
}

.quick-nav {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    padding: 0.8rem;
    background: rgba(13, 15, 26, 0.82);
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    z-index: 1100;
}

.quick-nav__item {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    border: none;
    background: rgba(233, 78, 119, 0.15);
    color: var(--color-light);
    font-weight: 600;
    cursor: pointer;
    position: relative;
}

.quick-nav__item::after {
    content: attr(data-tooltip);
    position: absolute;
    right: calc(100% + 0.6rem);
    top: 50%;
    transform: translateY(-50%);
    background: rgba(13, 15, 26, 0.85);
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    font-size: 0.75rem;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    white-space: nowrap;
}

.quick-nav__item:hover::after,
.quick-nav__item:focus::after {
    opacity: 1;
}

.quick-nav__item.is-active {
    background: var(--color-accent);
    color: #fff;
}

body[data-theme="light"] .quick-nav {
    background: rgba(246, 247, 251, 0.85);
    border-color: rgba(22, 24, 48, 0.12);
}

.scroll-top {
    position: fixed;
    bottom: 1.5rem;
    left: 1.5rem;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: none;
    background: rgba(233, 78, 119, 0.75);
    color: #fff;
    font-size: 1.4rem;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(233, 78, 119, 0.4);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    z-index: 1100;
}

.scroll-top.is-visible {
    opacity: 1;
    pointer-events: auto;
}

@media (max-width: 900px) {
    .nav__links {
        position: fixed;
        inset: 0 0 auto 0;
        transform: translateY(-110%);
        flex-direction: column;
        background: rgba(6, 8, 15, 0.96);
        padding: 4rem 2rem 2rem;
        gap: 1.4rem;
        transition: var(--transition);
    }

    .nav__actions {
        display: none;
    }

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

    .nav__toggle {
        display: block;
    }

    .nav {
        padding: 1rem 6vw;
    }

    .hero {
        height: 90vh;
    }

    blockquote {
        font-size: 1.2rem;
    }

    .references-slider {
        gap: 1rem;
    }

    .reference-card {
        flex: 0 0 100%;
    }

    .portfolio-grid {
        grid-template-columns: none;
        grid-auto-flow: column;
        grid-auto-columns: minmax(280px, 80vw);
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        padding-bottom: 1rem;
    }

    .portfolio-card {
        scroll-snap-align: center;
    }

    .portfolio-hint {
        display: block;
    }

    .download-card {
        flex-direction: column;
        text-align: center;
    }

    .quick-nav {
        display: none;
    }
}

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

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

@media (min-width: 900px) {
    .references-slider {
        overflow: visible;
        scroll-snap-type: none;
    }

    .reference-card {
        flex: 1;
        opacity: 1;
    }

    .references-controls {
        display: none;
    }
}

@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;
    }
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

@keyframes floatUp {
    0% {
        transform: translateY(110vh) scale(0.6);
        opacity: 0;
    }
    30% {
        opacity: 1;
    }
    100% {
        transform: translateY(-10vh) scale(1.1);
        opacity: 0;
    }
}