/* 
  LUCIANA ZECA — LANDSCAPE ARCHITECT PORTFOLIO
  Design System: Cool, Crisp, Contemporary, Architectural & Premium.
  Inspiration: Uncode Creative Architect & Creative Studio.
  Color Palette: Pure White, Ink Charcoal (#141618), Cool Grey (#555555), Cobalt Blue (#115cfa) Accent.
  Typography: Inter (Sans-Serif) & Instrument Serif.
*/

:root {
  /* Color Palette */
  --bg-primary: #ffffff;
  --bg-secondary: #fafafa;
  --bg-wash: #f0f2f5;
  --bg-dark: #141618;
  --bg-dark-secondary: #1a1c1e;
  
  --text-primary: #141618;
  --text-secondary: #555555;
  --text-muted: #8c8c92;
  
  --text-dark-primary: #ffffff;
  --text-dark-secondary: #b0b3b8;
  --text-dark-muted: #7e828a;

  --accent: #115cfa; /* Cobalt Blue */
  --accent-hover: #004bd6;
  --accent-ice: #e8ecf2;
  
  --line-light: rgba(20, 22, 24, 0.08);
  --line-dark: rgba(255, 255, 255, 0.08);
  --line-muted: rgba(20, 22, 24, 0.03);
  
  /* Typography Fallbacks */
  --font-display: "Instrument Serif", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  /* Dimensions & Spacing */
  --header-height: 5.5rem;
  --page-gutter: clamp(1.5rem, 5vw, 5.5rem);
  --section-space: clamp(6.5rem, 11vw, 11.5rem);
  --shell: 88rem;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1.5rem);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  min-width: 20rem;
  margin: 0;
  overflow-x: clip;
  background: var(--bg-primary);
}

body.menu-open {
  overflow: hidden;
}

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

img {
  height: auto;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  border: 0;
  margin: 0;
  padding: 0;
  background: none;
  color: inherit;
  font: inherit;
  cursor: pointer;
}

h1,
h2,
h3,
h4,
h5,
h6,
p,
figure,
ol,
ul {
  margin: 0;
}

ol,
ul {
  padding: 0;
  list-style: none;
}

::selection {
  background: var(--accent);
  color: #ffffff;
}

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

/* Accessibility Skip Link */
.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 2000;
  padding: 0.8rem 1.2rem;
  border: 1px solid var(--text-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  transform: translateY(-150%);
  transition: transform 180ms cubic-bezier(0.25, 1, 0.5, 1);
}

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

/* Structural Layout Utilities */
.section-shell {
  width: min(100%, var(--shell));
  margin-inline: auto;
}

.section-pad {
  padding: var(--section-space) var(--page-gutter);
}

/* Metadata Labels (Eyebrows) */
.section-label {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.section-label span {
  display: inline-grid;
  width: 1.8rem;
  height: 1.8rem;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0;
}

.section-label--light {
  color: var(--text-dark-muted);
}

/* ==========================================================================
   Buttons and Interactive Links
   ========================================================================== */
.arrow-link {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  border-bottom: 1.5px solid currentColor;
  color: var(--text-primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: gap 250ms cubic-bezier(0.25, 1, 0.5, 1), color 250ms ease;
}

.arrow-link:hover {
  gap: 2rem;
  color: var(--accent);
}

.arrow-link--light {
  color: var(--text-dark-primary);
}

.arrow-link--light:hover {
  color: var(--accent);
}

.button {
  display: inline-flex;
  min-height: 3.5rem;
  min-width: 13.5rem;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1rem 1.4rem;
  border: 1.5px solid var(--text-primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-radius: 0;
  transition: background-color 250ms ease, color 250ms ease, border-color 250ms ease, transform 250ms cubic-bezier(0.25, 1, 0.5, 1);
}

.button--ink {
  background: var(--text-primary);
  color: #ffffff;
}

.button--ink:hover {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.button:not(.button--ink):hover {
  background: var(--text-primary);
  color: #ffffff;
  transform: translateY(-2px);
}

/* ==========================================================================
   Header & Navigation (Smart & Sticky)
   ========================================================================== */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  background: rgba(255, 255, 255, 0);
  transition: background-color 300ms ease, border-color 300ms ease, box-shadow 300ms ease, height 300ms ease, transform 300ms cubic-bezier(0.25, 1, 0.5, 1);
}

/* Slide out of view on scroll down */
.site-header.is-hidden {
  transform: translateY(-100%);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid var(--line-light);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.02);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  height: calc(var(--header-height) - 1rem);
}

.site-header__inner {
  width: min(100%, calc(var(--shell) + (var(--page-gutter) * 2)));
  height: 100%;
  margin-inline: auto;
  padding-inline: var(--page-gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--text-primary);
  transition: opacity 250ms ease;
}

.brand:hover {
  opacity: 0.8;
}

.brand__mark {
  display: grid;
  width: 2.2rem;
  height: 2.2rem;
  place-items: center;
  border: 1.5px solid var(--text-primary);
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 600;
}

.brand__name {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.2rem, 2.5vw, 2.8rem);
}

.site-nav a {
  position: relative;
  padding-block: 0.75rem;
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: color 250ms ease;
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0.45rem;
  left: 0;
  height: 1.5px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 250ms cubic-bezier(0.25, 1, 0.5, 1);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text-primary);
}

.site-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.site-nav .site-nav__contact {
  padding: 0.6rem 1.15rem;
  border: 1.5px solid var(--text-primary);
  color: var(--text-primary);
}

.site-nav .site-nav__contact::after {
  display: none;
}

.site-nav .site-nav__contact:hover {
  background: var(--text-primary);
  color: #ffffff;
}

.menu-toggle {
  display: none;
}

/* ==========================================================================
   Hero Section (Architectural Grid Background)
   ========================================================================== */
.hero {
  position: relative;
  min-height: min(65rem, 100svh);
  padding: calc(var(--header-height) + clamp(2rem, 5vw, 4.5rem)) var(--page-gutter) clamp(3rem, 6vw, 5rem);
  overflow: hidden;
  border-bottom: 1px solid var(--line-light);
  background-color: var(--bg-primary);
  /* 80px Architectural Grid Lines */
  background-image: 
    linear-gradient(var(--line-light) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-light) 1px, transparent 1px);
  background-size: 80px 80px;
  background-position: center top;
}

.hero__inner {
  position: relative;
  z-index: 1;
  width: min(100%, var(--shell));
  min-height: calc(min(65rem, 100svh) - var(--header-height) - clamp(5rem, 11vw, 9.5rem));
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(26rem, 0.95fr);
  align-items: center;
  gap: clamp(3rem, 7vw, 7.5rem);
}

.hero__copy {
  position: relative;
  max-width: 44rem;
}

.locator {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--line-light);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero .eyebrow {
  margin-bottom: 1rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero .eyebrow span {
  margin-inline: 0.45rem;
  color: var(--line-light);
}

.hero h1 {
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: clamp(4.5rem, 8.5vw, 8.5rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 0.85;
}

.hero h1 em {
  display: inline-block;
  margin-left: clamp(1.5rem, 5vw, 4.5rem);
  font-style: italic;
  font-weight: 400;
  color: var(--accent); /* Cobalt Blue name accent */
}

.hero__statement {
  max-width: 35rem;
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding-left: clamp(1.25rem, 3vw, 2.25rem);
  border-left: 2px solid var(--text-primary);
  color: var(--text-primary);
  font-size: clamp(1.2rem, 1.8vw, 1.55rem);
  line-height: 1.5;
  font-weight: 400;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  margin-top: 2.5rem;
}

.margin-note {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-top: clamp(3rem, 6vw, 5.5rem);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.margin-note span {
  color: var(--text-primary);
}

.hero-portrait {
  width: min(100%, 38rem);
  justify-self: end;
}

.hero-portrait__image {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border: 1px solid var(--text-primary);
  background: var(--bg-wash);
}

.hero-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 52% center;
  filter: grayscale(0.15) contrast(1.02); /* Maintain face visible and context clear */
  transition: transform 800ms cubic-bezier(0.25, 1, 0.5, 1);
}

.hero-portrait picture {
  display: block;
  width: 100%;
  height: 100%;
}

.hero-portrait:hover img {
  transform: scale(1.03);
}

/* Crop Marks for Technical Blueprint feel */
.crop-mark {
  position: absolute;
  z-index: 2;
  width: 2rem;
  height: 2rem;
  pointer-events: none;
}

.crop-mark::before,
.crop-mark::after {
  content: "";
  position: absolute;
  background: var(--text-primary);
}

.crop-mark::before {
  width: 100%;
  height: 1px;
}

.crop-mark::after {
  width: 1px;
  height: 100%;
}

.crop-mark--one {
  top: 1rem;
  left: 1rem;
}

.crop-mark--one::before,
.crop-mark--one::after {
  top: 0;
  left: 0;
}

.crop-mark--two {
  right: 1rem;
  bottom: 1rem;
}

.crop-mark--two::before,
.crop-mark--two::after {
  right: 0;
  bottom: 0;
}

.hero-portrait figcaption {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.8rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ==========================================================================
   Practice Section (Spațiu Public & Peisaj)
   ========================================================================== */
.practice {
  border-bottom: 1px solid var(--line-light);
  background: var(--bg-primary);
}

.section-heading--split {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(20rem, 0.8fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: start;
  margin-bottom: clamp(4rem, 8vw, 7rem);
}

.section-heading h2,
.work-heading h2,
.experience__heading h2,
.contact h2 {
  margin-top: 1rem;
  font-family: var(--font-body);
  font-size: clamp(3.2rem, 6.5vw, 6.2rem);
  font-weight: 300;
  letter-spacing: -0.04em;
  line-height: 0.95;
  color: var(--text-primary);
}

.section-heading h2 em,
.work-heading h2 em,
.experience__heading h2 em,
.contact h2 em {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  color: var(--accent); /* Cobalt Blue italic details */
}

.section-intro {
  max-width: 32rem;
  color: var(--text-secondary);
  font-size: clamp(1rem, 1.4vw, 1.25rem);
  line-height: 1.75;
}

.practice-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}

.practice-card {
  min-height: 27rem;
  padding: 3rem clamp(1.5rem, 3vw, 2.75rem) 2.2rem;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
  transition: background-color 300ms ease;
}

.practice-card + .practice-card {
  border-left: 1px solid var(--line-light);
}

.practice-card:nth-child(2) {
  background: var(--bg-secondary);
}

.practice-card:hover {
  background: var(--bg-wash);
}

.practice-card__number {
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.practice-card__rule {
  position: relative;
  height: 3.5rem;
  margin: 2rem 0 clamp(3rem, 5vw, 5rem);
  border-top: 1px solid var(--line-light);
}

.practice-card__rule::before,
.practice-card__rule::after {
  content: "";
  position: absolute;
  top: -0.22rem;
  width: 1px;
  height: 0.45rem;
  background: var(--text-primary);
}

.practice-card__rule::before {
  left: 25%;
}

.practice-card__rule::after {
  right: 25%;
}

.practice-card__rule span {
  position: absolute;
  top: -0.22rem;
  left: 50%;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--accent); /* Cobalt highlight dot */
  transform: translateX(-50%);
}

.practice-card h3 {
  min-height: 5rem;
  font-size: clamp(1.8rem, 2.8vw, 2.5rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.practice-card h3 i {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}

.practice-card > p:not([class]) {
  margin-top: 1.25rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
}

.practice-card__tag {
  margin-top: auto;
  padding-top: 2.5rem;
  color: var(--text-primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ==========================================================================
   Field Notes (Dark Premium Section Break)
   ========================================================================== */
.field-notes {
  position: relative;
  overflow: hidden;
  background: var(--bg-dark);
  color: var(--text-dark-primary);
  border-bottom: 1px solid var(--bg-dark);
}

.field-notes::before {
  content: "";
  position: absolute;
  top: 0;
  right: 12%;
  width: 1px;
  height: 100%;
  background: var(--line-dark);
}

.field-notes__grid-lines {
  position: absolute;
  top: 4rem;
  right: -2rem;
  width: min(24rem, 32vw);
  height: 16rem;
  opacity: 0.04;
  background-image:
    linear-gradient(var(--text-dark-primary) 1px, transparent 1px),
    linear-gradient(90deg, var(--text-dark-primary) 1px, transparent 1px);
  background-size: 2rem 2rem;
  transform: rotate(4deg);
  pointer-events: none;
}

.field-notes__shell {
  position: relative;
}

.field-notes__header {
  display: grid;
  grid-template-columns: minmax(0, 0.35fr) minmax(0, 1fr);
  gap: clamp(2rem, 8vw, 8rem);
  align-items: start;
  margin-bottom: clamp(4rem, 9vw, 8rem);
}

.field-notes__title-wrap h2 {
  color: var(--text-dark-primary);
  font-size: clamp(4.5rem, 11vw, 10.5rem);
  font-weight: 300;
  letter-spacing: -0.06em;
  line-height: 0.75;
}

.field-notes__title-wrap h2 em {
  display: inline-block;
  margin-left: clamp(2rem, 8vw, 8rem);
  color: var(--accent); /* Cobalt highlight in the dark */
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.04em;
}

.field-notes__title-wrap > p {
  max-width: 30rem;
  margin-top: clamp(3rem, 6vw, 5rem);
  margin-left: clamp(2rem, 8vw, 8rem);
  color: var(--text-dark-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.notes-list {
  border-top: 1px solid var(--line-dark);
}

.field-note {
  display: grid;
  grid-template-columns: minmax(11rem, 0.35fr) minmax(0, 1fr);
  gap: clamp(2rem, 8vw, 8rem);
  padding: clamp(2.5rem, 5vw, 4.5rem) 0;
  border-bottom: 1px solid var(--line-dark);
}

.field-note__meta {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  color: var(--text-dark-secondary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.field-note__meta span:last-child {
  color: rgba(255, 255, 255, 0.4);
  font-weight: 400;
}

.field-note__body {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(15rem, 0.7fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: start;
}

.field-note h3 {
  max-width: 40rem;
  color: var(--text-dark-primary);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.field-note h3 em {
  font-family: var(--font-display);
  color: var(--accent);
  font-style: italic;
  font-weight: 400;
}

.field-note__body p {
  padding-top: 0.5rem;
  color: var(--text-dark-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.field-notes__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(2rem, 5vw, 5rem);
  padding-top: 2.5rem;
}

.field-notes__footer p {
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ==========================================================================
   Selected Work Section (Interbellum Bucharest)
   ========================================================================== */
.selected-work {
  border-bottom: 1px solid var(--line-light);
  background: var(--bg-primary);
}

.work-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(21rem, 0.7fr);
  gap: clamp(3rem, 9vw, 9rem);
  align-items: start;
  margin-bottom: clamp(5rem, 10vw, 9rem);
}

.work-heading__description {
  padding-left: 2rem;
  border-left: 2px solid var(--text-primary);
}

.work-heading__description p {
  margin-bottom: 1.7rem;
  color: var(--text-secondary);
  font-size: clamp(1rem, 1.4vw, 1.25rem);
  line-height: 1.75;
}

.work-gallery {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(1.25rem, 2.5vw, 2.5rem);
  align-items: start;
}

.work-image {
  min-width: 0;
}

.work-image--cover {
  grid-column: 1 / span 8;
}

.work-image--one {
  grid-column: 9 / span 4;
  margin-top: clamp(4rem, 9vw, 8rem);
}

.work-image--two {
  grid-column: 2 / span 4;
  margin-top: clamp(2rem, 5vw, 5rem);
}

.work-image--three {
  grid-column: 7 / span 4;
  margin-top: clamp(7rem, 13vw, 12rem);
}

.work-image img {
  width: 100%;
  border: 1px solid var(--line-light);
  background: var(--bg-wash);
  filter: grayscale(0.2) contrast(1.02);
  transition: transform 800ms cubic-bezier(0.25, 1, 0.5, 1), filter 500ms ease;
}

.work-image:hover img {
  transform: scale(1.02);
  filter: grayscale(0) contrast(1.01);
}

.work-image figcaption {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding-top: 0.75rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-transform: uppercase;
}

.work-image figcaption span {
  color: var(--text-primary);
}

.work-gallery__note {
  max-width: 28rem;
  margin: clamp(5rem, 9vw, 8rem) 0 0 auto;
  padding: 1.5rem 0 0 2rem;
  border-top: 1px solid var(--line-light);
  color: var(--text-primary);
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
  line-height: 1.3;
  font-weight: 300;
}

/* Case study — same visual language as the selected-work section */
.case-study__header {
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--line-light);
}

.case-study__article {
  padding-top: calc(var(--header-height) + var(--section-space));
}

.case-study .work-heading h1 {
  font-size: clamp(3rem, 5vw, 5.2rem);
  font-weight: 400;
  line-height: 1.05;
}

.case-study .work-heading h1 em {
  font-family: var(--font-display);
  font-weight: 400;
}

.case-study__intro {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 6vw, 6rem);
  max-width: 68rem;
  margin-bottom: clamp(4rem, 8vw, 7rem);
  color: var(--text-secondary);
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  line-height: 1.75;
}

.case-study__return {
  margin-top: clamp(4rem, 8vw, 7rem);
}

@media (max-width: 40rem) {
  .case-study__intro {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Experience Section (Clean Architectural Resume)
   ========================================================================== */
.experience {
  border-bottom: 1px solid var(--line-light);
  background: var(--bg-secondary);
}

.experience__shell {
  display: grid;
  grid-template-columns: minmax(18rem, 0.67fr) minmax(0, 1fr);
  gap: clamp(4rem, 10vw, 10rem);
  align-items: start;
}

.experience__heading {
  position: sticky;
  top: calc(var(--header-height) + 3rem);
}

.experience__heading h2 {
  font-size: clamp(3rem, 5vw, 5.2rem);
}

.experience__heading > p:last-child {
  max-width: 25rem;
  margin-top: 2.2rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.timeline {
  border-top: 1px solid var(--line-light);
}

.timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(10.5rem, 0.65fr) minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: start;
  padding: 2.2rem 0;
  border-bottom: 1px solid var(--line-light);
}

.timeline__item::before {
  content: "";
  position: absolute;
  top: -0.22rem;
  left: 0;
  width: 0.45rem;
  height: 0.45rem;
  border: 1px solid var(--text-primary);
  border-radius: 50%;
  background: var(--bg-secondary);
}

.timeline__item--current::before {
  background: var(--accent); /* Cobalt Blue active state indicator */
  border-color: var(--accent);
}

.timeline time {
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.5;
  text-transform: uppercase;
}

.timeline h3 {
  font-size: clamp(1.5rem, 2.2vw, 2rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.timeline__item div p {
  margin-top: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.timeline__status {
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--text-primary);
  border-radius: 0;
  color: var(--text-primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ==========================================================================
   Contact and Footer (Dark Theme Closing)
   ========================================================================== */
.contact {
  background: var(--bg-dark);
  color: var(--text-dark-primary);
  border-bottom: 1px solid var(--bg-dark);
}

.contact h2 {
  color: var(--text-dark-primary);
}

.contact__shell {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(20rem, 0.66fr);
  gap: clamp(4rem, 11vw, 11rem);
  align-items: start;
}

.contact__details > p {
  max-width: 28rem;
  margin-bottom: 2.5rem;
  color: var(--text-dark-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
}

.contact-links {
  border-top: 1px solid var(--line-dark);
}

.contact-links a {
  display: flex;
  min-height: 4.5rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--line-dark);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--text-dark-primary);
  transition: padding-left 250ms cubic-bezier(0.25, 1, 0.5, 1), color 250ms ease;
}

.contact-links a:hover {
  padding-left: 0.8rem;
  color: var(--accent); /* Cobalt Blue hover */
}

.contact-links a span:last-child {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-footer {
  padding: 2.2rem var(--page-gutter);
  background: var(--bg-dark);
  color: var(--text-dark-secondary);
  border-top: 1px solid var(--line-dark);
}

.site-footer__inner {
  width: min(100%, var(--shell));
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 2rem;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.site-footer__inner p:nth-child(2) {
  text-align: center;
  color: var(--text-dark-muted);
}

.site-footer a {
  border-bottom: 1.5px solid transparent;
  padding-block: 0.4rem;
  font-weight: 700;
  transition: border-bottom-color 200ms ease, color 200ms ease;
}

.site-footer a:hover {
  color: var(--accent);
  border-bottom-color: currentColor;
}

/* ==========================================================================
   Interactive Custom Cursor
   ========================================================================== */
.custom-cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 6px;
  height: 6px;
  background: var(--accent); /* Cobalt Blue */
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate3d(-50%, -50%, 0);
  transition: width 0.25s ease, height 0.25s ease, background-color 0.25s ease, border-color 0.25s ease;
}

.custom-cursor.hover {
  width: 22px;
  height: 22px;
  background: rgba(17, 92, 250, 0.12); /* Subtle blue fill on hover */
  border: 1px solid var(--accent);
}

/* ==========================================================================
   Reveal Motion
   ========================================================================== */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(2rem);
  transition: opacity 800ms cubic-bezier(0.16, 1, 0.3, 1), transform 800ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 68rem) {
  .hero {
    min-height: auto;
  }

  .hero__inner {
    min-height: 0;
    grid-template-columns: minmax(0, 0.95fr) minmax(22rem, 0.85fr);
    gap: 3.5rem;
  }

  .hero h1 {
    font-size: clamp(4.2rem, 9vw, 6.2rem);
  }

  .hero-portrait {
    max-width: 32rem;
  }

  .practice-card {
    min-height: 25rem;
  }

  .field-note__body {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .experience__shell {
    grid-template-columns: minmax(17rem, 0.55fr) minmax(0, 1fr);
    gap: 4rem;
  }
}

@media (max-width: 54rem) {
  :root {
    --header-height: 4.25rem;
  }

  .brand__name {
    display: none;
  }

  .menu-toggle {
    position: relative;
    z-index: 2;
    display: inline-flex;
    min-width: 4.8rem;
    min-height: 2.75rem;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    color: var(--text-primary);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }

  .menu-toggle__icon {
    position: relative;
    width: 1.5rem;
    height: 0.9rem;
  }

  .menu-toggle__icon i {
    position: absolute;
    right: 0;
    width: 100%;
    height: 1px;
    background: currentColor;
    transition: top 200ms ease, transform 200ms ease;
  }

  .menu-toggle__icon i:first-child {
    top: 0.2rem;
  }

  .menu-toggle__icon i:last-child {
    top: 0.68rem;
  }

  .menu-toggle[aria-expanded="true"] .menu-toggle__icon i:first-child {
    top: 0.45rem;
    transform: rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] .menu-toggle__icon i:last-child {
    top: 0.45rem;
    transform: rotate(-45deg);
  }

  .site-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: grid;
    padding: 1.25rem var(--page-gutter) 2rem;
    border-bottom: 1.5px solid var(--text-primary);
    background: var(--bg-primary);
    box-shadow: 0 20px 35px rgba(0, 0, 0, 0.05);
  }

  .js .site-nav[data-open="false"] {
    visibility: hidden;
    opacity: 0;
    transform: translateY(-0.75rem);
    pointer-events: none;
  }

  .js .site-nav {
    transition: visibility 200ms ease, opacity 200ms ease, transform 200ms ease;
  }

  .site-nav a,
  .site-nav .site-nav__contact {
    min-height: 3.3rem;
    padding: 1rem 0;
    border: 0;
    border-bottom: 1px solid var(--line-light);
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: 0;
    text-transform: none;
  }

  .site-nav .site-nav__contact:hover {
    background: transparent;
    color: var(--accent);
  }

  .hero {
    padding-top: calc(var(--header-height) + 2rem);
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .hero__copy {
    display: contents;
  }

  .locator {
    order: 1;
    margin-bottom: 3rem;
  }

  .hero .eyebrow {
    order: 2;
  }

  .hero h1 {
    order: 3;
    font-size: clamp(4.5rem, 15vw, 7.5rem);
  }

  .hero-portrait {
    order: 4;
    width: min(100%, 36rem);
    margin-top: 3.5rem;
    justify-self: start;
  }

  .hero__statement {
    order: 5;
  }

  .hero__actions {
    order: 6;
  }

  .margin-note {
    order: 7;
  }

  .section-heading--split,
  .work-heading,
  .contact__shell {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

  .practice-card {
    min-height: 20rem;
  }

  .practice-card + .practice-card {
    border-top: 1px solid var(--line-light);
    border-left: 0;
  }

  .practice-card__rule {
    margin-bottom: 2rem;
  }

  .practice-card h3 {
    min-height: 0;
  }

  .field-notes__header,
  .field-note {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .field-notes__title-wrap h2 {
    font-size: clamp(4.5rem, 16vw, 7.5rem);
  }

  .field-notes__title-wrap h2 em,
  .field-notes__title-wrap > p {
    margin-left: 1.5rem;
  }

  .field-note__meta {
    flex-direction: row;
    justify-content: space-between;
  }

  .work-heading__description {
    max-width: 36rem;
  }

  .experience__shell {
    grid-template-columns: 1fr;
    gap: 4rem;
  }

  .experience__heading {
    position: static;
  }
}

@media (max-width: 40rem) {
  :root {
    --page-gutter: 1.25rem;
    --section-space: 5rem;
  }

  .hero {
    padding-bottom: 3.5rem;
  }

  .locator {
    gap: 0.75rem;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
  }

  .hero .eyebrow {
    font-size: 0.75rem;
  }

  .hero h1 {
    font-size: clamp(4rem, 20vw, 5.8rem);
  }

  .hero h1 em {
    margin-left: 1rem;
  }

  .hero__statement {
    margin-top: 2.2rem;
    font-size: 1.2rem;
  }

  .hero__actions {
    align-items: stretch;
    flex-direction: column;
    gap: 1rem;
  }

  .hero__actions .button,
  .hero__actions .arrow-link {
    width: 100%;
  }

  .hero__actions .arrow-link {
    padding-inline: 0.2rem;
  }

  .margin-note {
    margin-top: 2.5rem;
  }

  .hero-portrait {
    width: 100%;
  }

  .hero-portrait__image {
    aspect-ratio: 5 / 6;
  }

  .hero-portrait figcaption {
    font-size: 0.75rem;
  }

  .section-heading h2,
  .work-heading h2,
  .experience__heading h2,
  .contact h2 {
    font-size: clamp(2.8rem, 12vw, 4.2rem);
  }

  .practice-card {
    min-height: 20rem;
    padding-inline: 1.25rem;
  }

  .field-notes__grid-lines {
    width: 15rem;
  }

  .field-notes__title-wrap h2 {
    font-size: clamp(4rem, 20vw, 5.8rem);
  }

  .field-notes__title-wrap h2 em,
  .field-notes__title-wrap > p {
    margin-left: 1rem;
  }

  .field-note {
    padding-block: 2.2rem;
  }

  .field-note h3 {
    font-size: clamp(2.2rem, 10vw, 3rem);
  }

  .field-note__meta {
    gap: 1rem;
    font-size: 0.75rem;
  }

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

  .work-heading__description {
    padding-left: 1.25rem;
  }

  .work-gallery {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .work-image--cover,
  .work-image--one,
  .work-image--two,
  .work-image--three {
    grid-column: 1;
    margin-top: 0;
  }

  .work-image--one,
  .work-image--two,
  .work-image--three {
    width: 88%;
  }

  .work-image--one,
  .work-image--three {
    margin-left: auto;
  }

  .work-gallery__note {
    margin-top: 4.5rem;
    padding-left: 1.25rem;
  }

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

  .timeline__item time {
    grid-column: 1 / -1;
  }

  .timeline__item div {
    grid-column: 1;
  }

  .timeline__status {
    grid-column: 2;
    grid-row: 2;
  }

  .contact__details > p {
    margin-bottom: 1.5rem;
  }

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

  .site-footer__inner p:nth-child(2) {
    grid-column: 1 / -1;
    grid-row: 2;
    text-align: left;
    color: var(--text-dark-secondary);
  }
}

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

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

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* Error / 404 Page Styling */
.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100svh;
  padding: var(--page-gutter);
  text-align: center;
  background: var(--bg-primary);
  color: var(--text-primary);
}

.error-page .eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.error-page h1 {
  margin-top: 1.5rem;
  margin-bottom: 2.5rem;
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 300;
  letter-spacing: -0.04em;
  line-height: 1.1;
  font-family: var(--font-display);
}

.error-page .text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-bottom: 1.5px solid currentColor;
  padding-bottom: 0.3rem;
  transition: all 0.3s ease;
}

.error-page .text-link:hover {
  color: var(--accent);
  padding-bottom: 0.5rem;
}