/* ==========================================================================
   Atelier Aster — Design System
   ========================================================================== */

:root {
  --ink: #1A1A18;
  --gold: #C8A97A;
  --ivory: #F5F0E8;
  --linen: #E8E2D9;
  --stone: #6B6560;
  --fog: #A8A29E;

  --font-display: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-body: 'Jost', 'Helvetica Neue', Arial, sans-serif;

  --container: 1440px;
  --gutter: clamp(24px, 4vw, 56px);
  --section-y: clamp(80px, 10vw, 160px);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  background: var(--ivory);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  letter-spacing: 0.01em;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease, border-color 0.3s ease;
}

p {
  margin: 0 0 1.2em;
}

/* Typography --------------------------------------------------------------- */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 400;
  color: var(--ink);
  line-height: 1.15;
  margin: 0 0 0.6em;
  letter-spacing: 0.005em;
}

h1 {
  font-size: clamp(40px, 6vw, 72px);
  font-style: italic;
}

h2 {
  font-size: clamp(32px, 4.2vw, 52px);
  font-style: italic;
}

h3 {
  font-size: clamp(22px, 2.4vw, 28px);
}

.eyebrow {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink);
  margin: 0 0 1.4em;
  display: inline-block;
}

.eyebrow--stone {
  color: var(--stone);
}

/* Layout helpers ----------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section {
  padding: var(--section-y) 0;
}

.divider {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 80px var(--gutter);
  max-width: var(--container);
  margin: 0 auto;
}

.divider::before,
.divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--gold);
}

.divider__label {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ink);
  white-space: nowrap;
}

/* Buttons ------------------------------------------------------------------ */

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  padding: 18px 32px;
  border: 1px solid var(--gold);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  border-radius: 0;
}

.btn:hover,
.btn:focus-visible {
  background: var(--gold);
  color: var(--ivory);
  outline: none;
}

.btn--ghost {
  color: var(--gold);
  border-color: var(--gold);
  background: transparent;
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: transparent;
  color: var(--ivory);
  border-color: var(--ivory);
}

.link-arrow {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 1px solid var(--gold);
  padding-bottom: 4px;
}

.link-arrow:hover,
.link-arrow:focus-visible {
  color: var(--gold);
}

/* Navigation --------------------------------------------------------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--ivory);
  border-bottom: 1px solid var(--linen);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container);
  margin: 0 auto;
  padding: 22px var(--gutter);
}

.nav__logo {
  display: inline-flex;
  align-items: center;
  color: var(--ink);
}

.nav__logo img {
  display: block;
  height: 38px;
  width: auto;
}

.nav__logo:hover img,
.nav__logo:focus-visible img {
  opacity: 0.8;
  transition: opacity 0.3s ease;
}

.nav__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 40px;
  align-items: center;
}

.nav__link {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink);
  position: relative;
  padding-bottom: 2px;
}

.nav__link:hover,
.nav__link:focus-visible,
.nav__link--active {
  color: var(--gold);
}

.nav__link--gold {
  color: var(--gold);
  text-transform: none;
  letter-spacing: 0.06em;
  font-size: 13px;
}

.nav__link--gold:hover,
.nav__link--gold:focus-visible {
  color: var(--ink);
}

.nav__toggle {
  display: none;
  background: transparent;
  border: 0;
  width: 32px;
  height: 24px;
  padding: 0;
  position: relative;
  cursor: pointer;
}

.nav__toggle span {
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--ink);
  transition: transform 0.3s ease, opacity 0.3s ease, top 0.3s ease;
}

.nav__toggle span:nth-child(1) { top: 6px; }
.nav__toggle span:nth-child(2) { top: 12px; }
.nav__toggle span:nth-child(3) { top: 18px; }

.nav--open .nav__toggle span:nth-child(1) {
  top: 12px;
  transform: rotate(45deg);
}
.nav--open .nav__toggle span:nth-child(2) {
  opacity: 0;
}
.nav--open .nav__toggle span:nth-child(3) {
  top: 12px;
  transform: rotate(-45deg);
}

/* Hero --------------------------------------------------------------------- */

.hero {
  position: relative;
  min-height: calc(100vh - 72px);
  background: var(--ink);
  overflow: hidden;
  color: var(--ivory);
}

.hero__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right center;
  /* Inverts the pencil sketch so dark lines become luminous on the ink backdrop */
  filter: invert(1) contrast(0.95);
  opacity: 0.32;
  mix-blend-mode: screen;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    115deg,
    rgba(26, 26, 24, 0.95) 0%,
    rgba(26, 26, 24, 0.65) 45%,
    rgba(26, 26, 24, 0.25) 100%
  );
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter) clamp(60px, 10vh, 120px);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: calc(100vh - 72px);
  max-width: 720px;
  align-items: flex-start;
}

.hero__eyebrow {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 28px;
}

.hero__headline {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(36px, 5.6vw, 56px);
  line-height: 1.1;
  color: var(--ivory);
  margin: 0 0 40px;
  max-width: 640px;
}

.hero .btn--ghost {
  color: var(--gold);
  border-color: var(--gold);
}

.hero .btn--ghost:hover,
.hero .btn--ghost:focus-visible {
  background: var(--gold);
  color: var(--ink);
  border-color: var(--gold);
}

/* Portfolio grid (home) ---------------------------------------------------- */

.works {
  padding: 0 0 var(--section-y);
}

.works__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 16px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.works__tall {
  grid-column: 1;
  grid-row: 1 / span 2;
  aspect-ratio: 3 / 4;
  overflow: hidden;
}

.works__item {
  aspect-ratio: 4 / 5;
  overflow: hidden;
}

.works__grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.works__item:hover img,
.works__tall:hover img {
  transform: scale(1.03);
}

.works__footer {
  max-width: var(--container);
  margin: 0 auto;
  padding: 48px var(--gutter) 0;
  display: flex;
  justify-content: flex-end;
}

/* Process strip (home) ----------------------------------------------------- */

.process-strip {
  background: var(--ink);
  color: var(--ivory);
  padding: var(--section-y) 0;
}

.process-strip__heading {
  color: var(--ivory);
  text-align: center;
  margin: 0 0 80px;
}

.process-strip__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.process-strip__item {
  border-top: 1px solid var(--gold);
  padding-top: 28px;
}

.process-strip__num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 28px;
  color: var(--gold);
  display: block;
  margin-bottom: 16px;
}

.process-strip__title {
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ivory);
  margin: 0 0 14px;
  font-weight: 400;
}

.process-strip__text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--fog);
  margin: 0;
}

/* Studio bio --------------------------------------------------------------- */

.studio {
  background: var(--ivory);
  padding: var(--section-y) 0;
}

.studio__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 8vw, 96px);
  align-items: center;
}

.studio__text p {
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink);
  max-width: 52ch;
}

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

/* Instagram strip ---------------------------------------------------------- */

.ig {
  background: var(--linen);
  padding: var(--section-y) 0;
}

.ig__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: clamp(32px, 6vw, 72px);
  align-items: center;
}

.ig__handle {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(28px, 3.4vw, 40px);
  color: var(--ink);
}

.ig__handle:hover,
.ig__handle:focus-visible {
  color: var(--gold);
}

.ig__thumbs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.ig__thumb {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--linen);
}

.ig__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease, opacity 0.4s ease;
}

.ig__thumb:hover img {
  transform: scale(1.05);
  opacity: 0.88;
}

/* Footer ------------------------------------------------------------------- */

.footer {
  background: var(--ink);
  color: var(--ivory);
  padding: 48px 0;
}

.footer__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 32px;
}

.footer__logo {
  display: inline-flex;
  align-items: center;
  color: var(--ivory);
}

.footer__logo img {
  display: block;
  height: 40px;
  width: auto;
}

.footer__logo:hover img,
.footer__logo:focus-visible img {
  opacity: 0.85;
  transition: opacity 0.3s ease;
}

.footer__nav {
  display: flex;
  gap: 28px;
  justify-self: center;
}

.footer__nav a {
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ivory);
}

.footer__nav a:hover,
.footer__nav a:focus-visible {
  color: var(--gold);
}

.footer__meta {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--fog);
  justify-self: end;
  text-align: right;
}

/* Page header -------------------------------------------------------------- */

.page-header {
  padding: clamp(80px, 10vw, 140px) 0 clamp(48px, 6vw, 80px);
  text-align: center;
  max-width: var(--container);
  margin: 0 auto;
}

.page-header h1 {
  margin-bottom: 0.4em;
}

.page-header__intro {
  max-width: 56ch;
  margin: 0 auto;
  color: var(--stone);
  font-size: 17px;
  line-height: 1.75;
  padding: 0 var(--gutter);
}

/* Portfolio page ----------------------------------------------------------- */

.filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  max-width: var(--container);
  margin: 0 auto 64px;
  padding: 0 var(--gutter);
}

.filter {
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  padding: 12px 22px;
  border: 1px solid var(--linen);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  border-radius: 0;
  transition: border-color 0.3s ease, color 0.3s ease, background 0.3s ease;
}

.filter:hover,
.filter:focus-visible {
  border-color: var(--gold);
  color: var(--gold);
  outline: none;
}

.filter--active {
  border-color: var(--ink);
  color: var(--ink);
  background: var(--linen);
}

.masonry {
  columns: 3 320px;
  column-gap: 16px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.masonry__item {
  break-inside: avoid;
  margin: 0 0 16px;
  cursor: zoom-in;
  overflow: hidden;
  background: var(--linen);
}

.masonry__item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s ease, opacity 0.4s ease;
}

.masonry__item:hover img {
  transform: scale(1.03);
  opacity: 0.94;
}

.masonry__item figcaption {
  color: var(--ink);
  font-size: 13px;
  padding: 12px 0 4px;
}

.masonry__item[hidden] {
  display: none;
}

/* CTA strip ---------------------------------------------------------------- */

.cta-strip {
  background: var(--linen);
  padding: clamp(80px, 10vw, 140px) var(--gutter);
  text-align: center;
  margin-top: var(--section-y);
}

.cta-strip h2 {
  margin: 0 0 32px;
}

/* Lightbox ----------------------------------------------------------------- */

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(26, 26, 24, 0.94);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 40px;
  cursor: zoom-out;
}

.lightbox--open {
  display: flex;
}

.lightbox__img {
  max-width: min(92vw, 1200px);
  max-height: 88vh;
  object-fit: contain;
  cursor: default;
}

.lightbox__close {
  position: absolute;
  top: 24px;
  right: 32px;
  background: transparent;
  border: 0;
  color: var(--ivory);
  font-size: 32px;
  line-height: 1;
  cursor: pointer;
  font-family: var(--font-display);
}

.lightbox__close:hover,
.lightbox__close:focus-visible {
  color: var(--gold);
  outline: none;
}

/* Process page steps ------------------------------------------------------- */

.steps {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 var(--gutter) var(--section-y);
}

.step {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 40px;
  padding: 60px 0;
  border-top: 1px solid var(--linen);
}

.step:last-child {
  border-bottom: 1px solid var(--linen);
}

.step__num {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(44px, 5vw, 64px);
  color: var(--gold);
  line-height: 1;
}

.step__title {
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 500;
  margin: 0 0 20px;
  color: var(--ink);
}

.step__body {
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink);
  margin: 0 0 20px;
}

.step__note {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 17px;
  color: var(--stone);
  margin: 0;
}

/* Inquiry form ------------------------------------------------------------- */

.form {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 var(--gutter) var(--section-y);
}

.field {
  margin-bottom: 36px;
}

.field label {
  display: block;
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 14px;
}

.field .optional {
  color: var(--stone);
  text-transform: none;
  letter-spacing: 0.06em;
  margin-left: 10px;
  font-size: 11px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 300;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--linen);
  padding: 12px 2px;
  border-radius: 0;
  transition: border-color 0.3s ease;
}

.field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--gold) 50%),
                    linear-gradient(135deg, var(--gold) 50%, transparent 50%);
  background-position: calc(100% - 14px) 20px, calc(100% - 8px) 20px;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 28px;
  cursor: pointer;
}

.field textarea {
  min-height: 140px;
  resize: vertical;
  line-height: 1.7;
}

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

.form__actions {
  margin-top: 48px;
}

.form__confirm {
  background: var(--linen);
  padding: 48px;
  text-align: center;
  display: none;
}

.form__confirm h2 {
  margin: 0 0 12px;
  font-size: clamp(24px, 3vw, 32px);
}

.form__confirm p {
  color: var(--stone);
  margin: 0;
}

.form--submitted .form__fields {
  display: none;
}

.form--submitted .form__confirm {
  display: block;
}

/* Contact ------------------------------------------------------------------ */

.contact {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 var(--gutter) var(--section-y);
  text-align: center;
}

.contact__email {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(28px, 3.4vw, 40px);
  color: var(--ink);
  display: inline-block;
  margin: 8px 0 28px;
  border-bottom: 1px solid var(--gold);
  padding-bottom: 8px;
}

.contact__email:hover,
.contact__email:focus-visible {
  color: var(--gold);
}

.contact__row {
  padding: 32px 0;
  border-top: 1px solid var(--linen);
}

.contact__row:last-child {
  border-bottom: 1px solid var(--linen);
}

.contact__label {
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--stone);
  margin: 0 0 10px;
}

.contact__value {
  font-size: 17px;
  color: var(--ink);
  margin: 0;
}

.contact__value a.gold {
  color: var(--ink);
}

.contact__value a.gold:hover,
.contact__value a.gold:focus-visible {
  color: var(--ink);
}

.contact__note {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 17px;
  color: var(--stone);
  margin-top: 48px;
  line-height: 1.7;
}

/* Responsive --------------------------------------------------------------- */

@media (max-width: 880px) {
  .nav__toggle {
    display: block;
  }

  .nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--ivory);
    border-bottom: 1px solid var(--linen);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px var(--gutter) 24px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
  }

  .nav__links li {
    width: 100%;
    border-bottom: 1px solid var(--linen);
  }

  .nav__links li:last-child {
    border-bottom: 0;
  }

  .nav__link {
    display: block;
    padding: 18px 0;
    width: 100%;
  }

  .nav--open .nav__links {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .works__grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto;
    gap: 12px;
  }

  .works__tall {
    grid-column: 1 / -1;
    grid-row: auto;
    aspect-ratio: 4 / 5;
  }

  .process-strip__grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

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

  .studio__image {
    order: -1;
  }

  .ig__inner {
    grid-template-columns: 1fr;
    text-align: left;
  }

  .ig__thumbs {
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
  }

  .footer__inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 20px;
  }

  .footer__nav {
    justify-self: center;
    flex-wrap: wrap;
    justify-content: center;
  }

  .footer__meta {
    justify-self: center;
    text-align: center;
  }

  .step {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 48px 0;
  }
}

@media (max-width: 520px) {
  .process-strip__grid {
    grid-template-columns: 1fr;
  }

  .ig__thumbs {
    grid-template-columns: repeat(3, 1fr);
  }

  .ig__thumb:nth-child(n + 4) {
    display: none;
  }

  .filters {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 8px;
  }

  .filter {
    flex-shrink: 0;
  }
}

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