/* ============================================================
   DESIGN SYSTEM — Salles Braga Arquitetura (Redesign Editorial)
   ============================================================ */

:root {
    --clr-white: #FFFFFF;
    --clr-cream: #F7F4F0;
    --clr-dark: #0D1B2A;
    --clr-mid: #2C3A4A;
    --clr-muted: #6B7A8D;
    --clr-line: #E0D9D0;
    --clr-gold: #C9A84C;
    --clr-gold-dk: #8B6914;

    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', system-ui, sans-serif;

    --container: 1240px;
    --header-h: 72px;

    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --tr: 0.3s var(--ease);
    --tr-slow: 0.65s var(--ease);
}

/* ============================================================
   RESET & BASE
   ============================================================ */

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

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

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--clr-dark);
    background: var(--clr-white);
    overflow-x: hidden;
}

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

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

ul,
ol {
    list-style: none;
}

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

/* ============================================================
   TYPOGRAPHY
   ============================================================ */

.eyebrow {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--clr-muted);
    margin-bottom: 0.875rem;
}

.section__title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 700;
    line-height: 1.15;
    color: var(--clr-dark);
    margin-bottom: 1.5rem;
}

.section__title em {
    font-style: italic;
    color: var(--clr-gold);
}

/* ============================================================
   LAYOUT
   ============================================================ */

.container {
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: 1.5rem;
}

.section {
    padding-block: 6rem;
}

.section--cream {
    background: var(--clr-cream);
}

/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.75rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    border: 1.5px solid transparent;
    border-radius: 3px;
    transition: background var(--tr), color var(--tr), transform var(--tr), box-shadow var(--tr), border-color var(--tr);
    cursor: pointer;
    white-space: nowrap;
}

.btn--lg {
    padding: 1rem 2.25rem;
    font-size: 0.9375rem;
}

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

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

.btn--dark:hover {
    background: var(--clr-mid);
    border-color: var(--clr-mid);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(13, 27, 42, .25);
}

.btn--light {
    background: var(--clr-white);
    color: var(--clr-dark);
    border-color: var(--clr-white);
}

.btn--light:hover {
    background: rgba(255, 255, 255, .88);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 255, 255, .2);
}

.btn--outline {
    background: transparent;
    color: var(--clr-white);
    border-color: rgba(255, 255, 255, .5);
}

.btn--outline:hover {
    border-color: var(--clr-white);
    background: rgba(255, 255, 255, .08);
    transform: translateY(-2px);
}

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

.btn--outline-dark:hover {
    background: var(--clr-dark);
    color: var(--clr-white);
    transform: translateY(-2px);
}

/* ============================================================
   HEADER
   ============================================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-h);
    z-index: 900;
    display: flex;
    align-items: center;
    background: transparent;
    transition: background var(--tr), box-shadow var(--tr);
}

.header.scrolled {
    background: rgba(255, 255, 255, .97);
    box-shadow: 0 1px 0 var(--clr-line);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.header.scrolled .header__logo-text,
.header.scrolled .header__nav-link {
    color: var(--clr-dark);
}

.header.scrolled .header__cta {
    color: var(--clr-dark);
    border-color: var(--clr-dark);
}

.header.scrolled .header__hamburger span {
    background: var(--clr-dark);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: 1.5rem;
    gap: 2rem;
}

/* Logo */
.header__logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    text-decoration: none;
    flex-shrink: 0;
}

.header__logo-img {
    height: 60px;
    width: auto;
}

/* Sem background branco: mostra logo clara, esconde logo escura */
.header__logo-img--dark {
    display: none;
}

/* Com background branco (scrolled): mostra logo escura, esconde logo clara */
.header.scrolled .header__logo-img--light {
    display: none;
}

.header.scrolled .header__logo-img--dark {
    display: block;
}

.header.scrolled .header__logo-img {
    filter: none;
}

.header__logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
    color: var(--clr-white);
    transition: color var(--tr);
}

.header__logo-name {
    font-family: var(--font-heading);
    font-size: 1.0625rem;
    font-weight: 700;
    letter-spacing: .01em;
}

.header__logo-tagline {
    font-size: 0.625rem;
    font-weight: 400;
    letter-spacing: .18em;
    text-transform: uppercase;
    opacity: .75;
}

/* Nav */
.header__nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.header__nav-link {
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, .85);
    text-decoration: none;
    transition: color var(--tr);
    position: relative;
}

.header__nav-link::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--clr-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--tr);
}

.header__nav-link:hover {
    color: var(--clr-white);
}

.header__nav-link:hover::after {
    transform: scaleX(1);
}

/* Header CTA */
.header__cta {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: .06em;
    color: rgba(255, 255, 255, .85);
    border: 1px solid rgba(255, 255, 255, .45);
    border-radius: 3px;
    padding: .45rem 1rem;
    transition: color var(--tr), border-color var(--tr), background var(--tr);
    white-space: nowrap;
    flex-shrink: 0;
}

.header__cta:hover {
    color: var(--clr-white);
    border-color: rgba(255, 255, 255, .9);
    background: rgba(255, 255, 255, .1);
}

/* Hamburger */
.header__hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
}

.header__hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--clr-white);
    border-radius: 2px;
    transition: transform var(--tr), opacity var(--tr), background var(--tr);
}

.header__hamburger[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.header__hamburger[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.header__hamburger[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav */
.header__mobile-nav {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--clr-dark);
    z-index: 800;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
}

.header__mobile-nav.open {
    display: flex;
}

.header__mobile-nav-link {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--clr-white);
    text-decoration: none;
    transition: color var(--tr);
}

.header__mobile-nav-link:hover {
    color: var(--clr-gold);
}

/* ============================================================
   HERO — split screen
   ============================================================ */

.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 100vh;
}

/* Left panel — text */
.hero__text {
    background: var(--clr-dark);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: calc(var(--header-h) + 5rem) 4rem 5rem;
}

.hero__eyebrow {
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--clr-gold);
    margin-bottom: 1.5rem;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .55s var(--ease), transform .55s var(--ease);
}

.hero__title {
    font-family: var(--font-heading);
    font-size: clamp(2.75rem, 5vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    color: var(--clr-white);
    margin-bottom: 1.75rem;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity .65s var(--ease) .1s, transform .65s var(--ease) .1s;
}

.hero__title em {
    font-style: italic;
    color: var(--clr-gold);
}

.hero__subtitle {
    font-size: 1rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, .7);
    max-width: 38ch;
    margin-bottom: 2.5rem;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .55s var(--ease) .2s, transform .55s var(--ease) .2s;
}

.hero__actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .55s var(--ease) .32s, transform .55s var(--ease) .32s;
}

.hero__eyebrow.visible,
.hero__title.visible,
.hero__subtitle.visible,
.hero__actions.visible {
    opacity: 1;
    transform: none;
}

/* Right panel — image */
.hero__visual {
    position: relative;
    overflow: hidden;
}

.hero__visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transform: scale(1.04);
    transition: transform 1.4s var(--ease);
}

.hero__visual img.loaded {
    transform: scale(1);
}

/* ============================================================
   ABOUT
   ============================================================ */

.about {
    padding-block: 6rem;
}

.about .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.about__image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 5;
}

.about__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--tr-slow);
}

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

.about__text {
    padding-block: 1rem;
}

.about__text .section__title {
    margin-bottom: 1.25rem;
}

.about__text p {
    font-size: 1rem;
    line-height: 1.75;
    color: var(--clr-muted);
    margin-bottom: 1rem;
}

.about__text p:last-of-type {
    margin-bottom: 2rem;
}

/* Stats */
.about__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    border-top: 1px solid var(--clr-line);
    padding-top: 2rem;
    margin-top: 2rem;
}

.about__stat {
    display: flex;
    flex-direction: column;
    gap: .25rem;
}

.about__stat-num {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--clr-dark);
    line-height: 1;
}

.about__stat-label {
    font-size: .8rem;
    color: var(--clr-muted);
    line-height: 1.3;
}

/* ============================================================
   SERVICES — numbered editorial rows
   ============================================================ */

.services {
    padding-block: 6rem;
}

.services__header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 3rem;
    margin-bottom: 0;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--clr-line);
}

.services__header-desc {
    max-width: 36ch;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--clr-muted);
    flex-shrink: 0;
}

.services__header .section__title {
    margin-bottom: 0;
}

.services__list {
    display: flex;
    flex-direction: column;
}

.service-row {
    display: grid;
    grid-template-columns: 80px 1fr auto;
    align-items: center;
    gap: 2.5rem;
    padding-block: 2.5rem;
    border-bottom: 1px solid var(--clr-line);
    transition: background var(--tr), padding var(--tr);
}

.service-row:hover {
    background: var(--clr-cream);
    padding-inline: 1.25rem;
}

.service-row__num {
    font-family: var(--font-heading);
    font-size: .875rem;
    font-weight: 400;
    color: var(--clr-muted);
    letter-spacing: .08em;
    align-self: flex-start;
    padding-top: .25rem;
}

.service-row__title {
    font-family: var(--font-heading);
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--clr-dark);
    margin-bottom: .625rem;
}

.service-row__desc {
    font-size: .9375rem;
    line-height: 1.65;
    color: var(--clr-muted);
}

.service-row__link {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-size: .8125rem;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--clr-dark);
    border: 1px solid var(--clr-line);
    border-radius: 3px;
    padding: .625rem 1.125rem;
    white-space: nowrap;
    flex-shrink: 0;
    transition: border-color var(--tr), background var(--tr), color var(--tr), transform var(--tr);
}

.service-row__link svg {
    flex-shrink: 0;
    transition: transform var(--tr);
}

.service-row__link:hover {
    border-color: var(--clr-dark);
    background: var(--clr-dark);
    color: var(--clr-white);
    transform: translateY(-1px);
}

.service-row__link:hover svg {
    transform: translateX(3px);
}

/* ============================================================
   PORTFOLIO
   ============================================================ */

.portfolio {
    padding-block: 6rem;
}

/* Header row */
.portfolio__header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 2rem;
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--clr-line);
}

.portfolio__header .section__title {
    margin-bottom: 0;
}

/* Filters */
.portfolio__filters {
    display: flex;
    gap: .25rem;
    flex-shrink: 0;
}

.filter-btn {
    background: none;
    border: 1px solid transparent;
    border-radius: 3px;
    padding: .45rem 1rem;
    font-size: .8125rem;
    font-weight: 500;
    color: var(--clr-muted);
    cursor: pointer;
    transition: color var(--tr), border-color var(--tr), background var(--tr);
}

.filter-btn:hover {
    color: #C9A84C;
    border-color: var(--clr-line);
}

.filter-btn--active {
    color: var(--clr-white);
    border-color: var(--clr-dark);
    background: var(--clr-dark);
}

/* Grid */
.portfolio__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--clr-line);
}

.portfolio__item {
    overflow: hidden;
    position: relative;
    aspect-ratio: 4 / 3;
    cursor: pointer;
    background: var(--clr-cream);
}

.portfolio__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--tr-slow);
}

.portfolio__item:hover img {
    transform: scale(1.06);
}

.portfolio__item-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(13, 27, 42, .75) 0%, transparent 55%);
    opacity: 0;
    transition: opacity var(--tr);
    display: flex;
    align-items: flex-end;
    padding: 1.5rem;
}

.portfolio__item:hover .portfolio__item-overlay {
    opacity: 1;
}

.portfolio__item-info {
    color: var(--clr-white);
}

.portfolio__item-title {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: .25rem;
}

.portfolio__item-category {
    font-size: .75rem;
    font-weight: 500;
    letter-spacing: .1em;
    text-transform: uppercase;
    opacity: .75;
}

.portfolio__item[hidden],
.portfolio__item.hidden {
    display: none;
}

/* CTA */
.portfolio__cta {
    display: flex;
    justify-content: center;
    margin-top: 3rem;
}

/* ============================================================
   CONTACT
   ============================================================ */

.contact {
    padding-block: 6rem;
}

.contact .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: start;
}

.contact__info {
    display: flex;
    flex-direction: column;
}

.contact__info .section__title {
    margin-bottom: .5rem;
}

.contact__intro {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--clr-muted);
    margin-bottom: 2.5rem;
}

/* Contact list — label + value rows */
.contact__list {
    display: flex;
    flex-direction: column;
}

.contact__item {
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
    padding-block: 1.125rem;
    border-bottom: 1px solid var(--clr-line);
}

.contact__item:first-child {
    border-top: 1px solid var(--clr-line);
}

.contact__item-label {
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--clr-muted);
    min-width: 90px;
    flex-shrink: 0;
}

.contact__item-value {
    font-size: .9375rem;
    color: var(--clr-dark);
    text-decoration: none;
    transition: color var(--tr);
    line-height: 1.5;
}

.contact__item-value:hover {
    color: var(--clr-gold-dk);
}

/* Form */
.contact__form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form__group {
    display: flex;
    flex-direction: column;
    gap: .375rem;
}

.form__label {
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--clr-muted);
}

.form__control {
    background: var(--clr-white);
    border: 1px solid var(--clr-line);
    border-radius: 3px;
    padding: .75rem 1rem;
    font-family: var(--font-body);
    font-size: .9375rem;
    color: var(--clr-dark);
    outline: none;
    transition: border-color var(--tr), box-shadow var(--tr);
    width: 100%;
}

.form__control:focus {
    border-color: var(--clr-dark);
    box-shadow: 0 0 0 3px rgba(13, 27, 42, .06);
}

.form__control::placeholder {
    color: var(--clr-muted);
    opacity: .6;
}

textarea.form__control {
    resize: vertical;
    min-height: 130px;
}

.form__error {
    font-size: .75rem;
    color: #c0392b;
    display: none;
}

.form__error.visible {
    display: block;
}

.form__note {
    font-size: .8rem;
    color: var(--clr-muted);
    line-height: 1.5;
}

/* ============================================================
   FOOTER
   ============================================================ */

.footer {
    background: var(--clr-dark);
    color: rgba(255, 255, 255, .65);
    padding-block: 2rem 1.5rem;
}

.footer__inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.footer__logo {
    display: block;
    text-decoration: none;
    margin-left: -8px;
}

.footer__logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
    color: var(--clr-white);
}

.footer__logo-name {
    font-family: var(--font-heading);
    font-size: 1.0625rem;
    font-weight: 700;
}

.footer__logo-tagline {
    font-size: .625rem;
    font-weight: 400;
    letter-spacing: .18em;
    text-transform: uppercase;
    opacity: .6;
}

.footer__logo-img {
    width: 250px;
    height: auto;
    display: block;
}

.footer__tagline {
    font-size: .875rem;
    line-height: 1.6;
    max-width: 26ch;
}

.footer__nav {
    display: flex;
    flex-direction: column;
    gap: .75rem;
    text-align: center;
}

.footer__nav-link {
    font-size: .8125rem;
    font-weight: 500;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, .65);
    transition: color var(--tr);
}

.footer__nav-link:hover {
    color: var(--clr-white);
}

.footer__social {
    display: flex;
    flex-direction: column;
    gap: .875rem;
    align-items: flex-end;
}

.footer__social-link {
    font-size: .8125rem;
    font-weight: 500;
    color: rgba(255, 255, 255, .65);
    transition: color var(--tr);
    display: flex;
    align-items: center;
    gap: .5rem;
}

.footer__social-link:hover {
    color: var(--clr-white);
}

.footer__bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    font-size: .8rem;
}

/* ============================================================
   WHATSAPP FAB
   ============================================================ */

/* FAB Group */
.fab-group {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 800;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: .75rem;
}

.fab-item {
    display: flex;
    align-items: center;
    height: 56px;
    border-radius: 28px;
    color: #fff;
    text-decoration: none;
    overflow: hidden;
    cursor: pointer;
    transition: box-shadow .3s ease, transform .3s ease;
}

.fab-item__icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.fab-item__label {
    font-size: .8125rem;
    font-weight: 600;
    letter-spacing: .02em;
    white-space: nowrap;
    max-width: 0;
    opacity: 0;
    overflow: hidden;
    padding-left: 0;
    padding-right: 0;
    transition: max-width .4s ease, opacity .25s ease, padding .4s ease;
}

.fab-item:hover .fab-item__label {
    max-width: 240px;
    opacity: 1;
    padding-left: 1.125rem;
    padding-right: .5rem;
}

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

.fab-item--whatsapp {
    background: #25D366;
    box-shadow: 0 4px 16px rgba(37, 211, 102, .4);
}

.fab-item--whatsapp:hover {
    box-shadow: 0 8px 28px rgba(37, 211, 102, .55);
}

.fab-item--instagram {
    background: linear-gradient(135deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
    box-shadow: 0 4px 16px rgba(188, 24, 136, .35);
}

.fab-item--instagram:hover {
    box-shadow: 0 8px 28px rgba(188, 24, 136, .5);
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */

.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .6s var(--ease), transform .6s var(--ease);
}

.reveal.visible {
    opacity: 1;
    transform: none;
}

.service-row.reveal:nth-child(1) {
    transition-delay: .05s;
}

.service-row.reveal:nth-child(2) {
    transition-delay: .12s;
}

.service-row.reveal:nth-child(3) {
    transition-delay: .19s;
}

.service-row.reveal:nth-child(4) {
    transition-delay: .26s;
}

.portfolio__grid .reveal:nth-child(1) {
    transition-delay: .05s;
}

.portfolio__grid .reveal:nth-child(2) {
    transition-delay: .12s;
}

.portfolio__grid .reveal:nth-child(3) {
    transition-delay: .19s;
}

.portfolio__grid .reveal:nth-child(4) {
    transition-delay: .26s;
}

.portfolio__grid .reveal:nth-child(5) {
    transition-delay: .33s;
}

.portfolio__grid .reveal:nth-child(6) {
    transition-delay: .40s;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
    .header__nav {
        display: none;
    }

    .header__cta {
        display: none;
    }

    .header__hamburger {
        display: flex;
    }

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

    .hero__text {
        padding: calc(var(--header-h) + 4rem) 2rem 4rem;
        min-height: 100vh;
    }

    .hero__visual {
        display: none;
    }

    .about .container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about__image {
        max-width: 580px;
    }

    .services__header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .services__header-desc {
        max-width: 100%;
    }

    .service-row {
        grid-template-columns: 56px 1fr;
        gap: 1.5rem;
    }

    .service-row__link {
        display: none;
    }

    .service-row:hover {
        padding-inline: 0;
    }

    .portfolio__header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }

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

    .contact .container {
        grid-template-columns: 1fr;
        gap: 3.5rem;
    }

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

    .footer__social {
        align-items: flex-start;
    }
}

@media (max-width: 640px) {
    .section {
        padding-block: 4rem;
    }

    .about {
        padding-block: 4rem;
    }

    .services {
        padding-block: 4rem;
    }

    .portfolio {
        padding-block: 4rem;
    }

    .contact {
        padding-block: 4rem;
    }

    .hero__text {
        padding: calc(var(--header-h) + 3rem) 1.5rem 3.5rem;
    }

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

    .service-row {
        grid-template-columns: 48px 1fr;
        gap: 1rem;
        padding-block: 1.75rem;
    }

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

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

    .footer__social {
        align-items: flex-start;
    }

    .footer__bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: .5rem;
    }

    .fab-group {
        bottom: 1.25rem;
        right: 1.25rem;
    }
}

/* ============================================================
   ACCESSIBILITY — reduce motion
   ============================================================ */

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: .01ms !important;
        transition-duration: .01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* ============================================================
   LIGHTBOX
   ============================================================ */

.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(13, 27, 42, 0.96);
    align-items: center;
    justify-content: center;
}

.lightbox.open {
    display: flex;
}

.lightbox__backdrop {
    position: absolute;
    inset: 0;
    z-index: 0;
    cursor: default;
}

.lightbox__img-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 88vw;
    max-height: 82vh;
    z-index: 1;
    position: relative;
    pointer-events: none;
}

.lightbox__img {
    max-width: 88vw;
    max-height: 82vh;
    object-fit: contain;
    border-radius: 4px;
    opacity: 1;
    transition: opacity 0.2s var(--ease);
    user-select: none;
    -webkit-user-drag: none;
    pointer-events: none;
    display: block;
}

.lightbox__img.fading {
    opacity: 0;
}

.lightbox__close,
.lightbox__prev,
.lightbox__next {
    position: absolute;
    z-index: 2;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    color: var(--clr-white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.55rem;
    transition: background var(--tr), color var(--tr), transform var(--tr);
}

.lightbox__close svg,
.lightbox__prev svg,
.lightbox__next svg {
    pointer-events: none;
    display: block;
}

.lightbox__close:hover,
.lightbox__prev:hover,
.lightbox__next:hover {
    background: var(--clr-gold);
    border-color: var(--clr-gold);
    color: var(--clr-dark);
}

.lightbox__close {
    top: 1.25rem;
    right: 1.25rem;
}

.lightbox__prev {
    left: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox__prev:hover {
    transform: translateY(-50%) scale(1.08);
}

.lightbox__next {
    right: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox__next:hover {
    transform: translateY(-50%) scale(1.08);
}

.lightbox__counter {
    position: absolute;
    bottom: 1.25rem;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.5);
    font-family: var(--font-body);
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    pointer-events: none;
}

.portfolio__item {
    cursor: pointer;
}

@media (max-width: 640px) {
    .lightbox__prev { left: 0.5rem; }
    .lightbox__next { right: 0.5rem; }
    .lightbox__img-wrap { max-width: 96vw; max-height: 78vh; }
    .lightbox__img { max-width: 96vw; max-height: 78vh; }
}