@import url('fonts.css');

/* ─── Reset & Base ─────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #ffffff;
  --text-primary: #000000;
  --text-secondary: #727272;
  --text-body: #333333;
  --text-muted: #444444;
  --accent: #e00700;
  --card-bg: #f6f6f6;
  --border: #e8e8e8;
  --img-label: #c0c0c0;
  --container-width: 1200px;
  --font-sf: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  --font-sf-text: 'SF Pro Text', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
}

html {
  background-color: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sf);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg);
  min-height: 100vh;
}

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

/* ─── Layout ────────────────────────────────────────────────────── */
.page-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 180px;
  padding-top: 64px;
  padding-bottom: 180px;
}

.container {
  width: var(--container-width);
  max-width: 100%;
  padding: 0 24px;
}

/* ─── Navigation ─────────────────────────────────────────────────── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo {
  display: flex;
  flex-direction: column;
  font-family: var(--font-sf);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: -0.56px;
  text-transform: uppercase;
  font-style: normal;
  line-height: normal;
}

.nav-logo .name-first {
  color: var(--text-primary);
}

.nav-logo .name-last {
  color: var(--text-primary);
}

.nav-logo .role {
  color: var(--accent);
  margin-left: 0.3em;
}


.nav-right {
  display: flex;
  align-items: center;
  gap: 64px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  font-family: var(--font-sf);
  font-weight: 500;
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-separator {
  width: 1px;
  height: 19px;
  background-color: var(--text-secondary);
  opacity: 0.4;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-controls button {
  font-family: var(--font-sf);
  font-weight: 500;
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: color 0.2s ease;
}

.nav-controls button:hover {
  color: var(--text-primary);
}

/* ─── Hero ──────────────────────────────────────────────────────── */
.top-section {
  display: flex;
  flex-direction: column;
  gap: 176px;
  width: 100%;
}

.hero-text {
  font-family: var(--font-sf);
  font-weight: 700;
  font-size: 64px;
  line-height: 76px;
  letter-spacing: -2.56px;
  color: var(--text-primary);
  max-width: 995px;
}

.hero-text em {
  font-style: italic;
  color: var(--accent);
}

/* ─── Portfolio Grid ─────────────────────────────────────────────── */
.portfolio-grid {
  display: flex;
  flex-direction: column;
  gap: 64px;
  width: 100%;
}

.portfolio-row {
  display: flex;
  gap: 64px;
  width: 100%;
}

/* ── Custom cursor ── */
.custom-cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: #ffffff;
  color: #000000;
  font-family: var(--font-sf);
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(0);
  transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1),
              opacity 0.25s ease;
  opacity: 0;
  z-index: 9999;
}

.custom-cursor.visible {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
}

.portfolio-card {
  flex: 1;
  aspect-ratio: 1 / 1;
  background-color: var(--card-bg);
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: none;
}

.portfolio-card .card-thumbnail {
  width: 100%;
  height: 100%;
  background-color: var(--card-bg);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.portfolio-card .card-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.portfolio-card:hover .card-thumbnail img {
  transform: scale(1.05);
}

/* ── Hover overlay ── */
.card-hover-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s ease;
}

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

.card-hover-text {
  width: calc(100% - 80px);
  padding: 0 40px;
  text-align: center;
  letter-spacing: -1.44px;
}

.card-title {
  font-family: var(--font-sf);
  font-weight: 700;
  font-style: italic;
  font-size: 36px;
  line-height: 40px;
  color: #D8D8D8;
}

.card-subtitle {
  font-family: var(--font-sf);
  font-weight: 700;
  font-style: normal;
  font-size: 36px;
  line-height: 40px;
  color: #ffffff;
}

/* ─── CTA / Footer ──────────────────────────────────────────────── */
.cta-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  width: 100%;
  text-align: center;
}

.cta-headline {
  font-family: var(--font-sf);
  font-weight: 700;
  font-size: 64px;
  line-height: 76px;
  letter-spacing: -2.56px;
  color: var(--text-primary);
}

.cta-headline em {
  font-style: italic;
  color: var(--accent);
}

.contact-links {
  display: flex;
  align-items: center;
  gap: 64px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-sf-text);
  font-weight: 400;
  font-size: 14px;
  color: var(--text-primary);
  transition: opacity 0.2s ease;
}

.contact-item:hover {
  opacity: 0.6;
}

.contact-icon {
  width: 8px;
  height: 7px;
  flex-shrink: 0;
}

/* ─── Case study page ────────────────────────────────────────────── */

/* Page shell — vertical stack with consistent rhythm */
.c-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 64px;
  padding-bottom: 180px;
  gap: 120px;
}

/* Wide container — 1200px, same as homepage */
.c-wide {
  width: 1200px;
  max-width: 100%;
  padding: 0;
}

/* Narrow container — for body-text sections */
.c-text {
  width: 760px;
  max-width: 100%;
  padding: 0;
}

/* ── Back link ── */
.c-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sf);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  margin-bottom: 48px;
  transition: color 0.2s ease;
}
.c-back:hover { color: var(--text-primary); }

/* ── Hero ── */
.c-hero { display: flex; flex-direction: column; }

/* Fix 1 — title + subtitle side by side */
.c-hero-top {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  margin-bottom: 64px;
}

.c-title {
  font-family: var(--font-sf);
  font-weight: 700;
  font-size: 64px;
  line-height: 76px;
  letter-spacing: -2.56px;
  color: var(--text-primary);
}

/* Fix 5 — subtitle uses SF Pro as primary font */
.c-subtitle {
  font-family: var(--font-sf);
  font-weight: 400;
  font-size: 20px;
  line-height: 1.65;
  color: var(--text-secondary);
  padding-top: 10px; /* optical alignment with title baseline */
}

/* ── Metrics ── */
.c-metrics {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
}

.c-metric {
  flex: 1;
  padding: 32px;
  border-right: 1px solid var(--border);
}
.c-metric:last-child { border-right: none; }

/* Fix 2 — smaller value, bold (700) not heavy (800) */
.metric-value {
  display: block;
  font-family: var(--font-sf);
  font-weight: 700;
  font-size: 44px;
  line-height: 1;
  letter-spacing: -1.5px;
  color: var(--accent);
  margin-bottom: 10px;
}

/* Fix 4 — label: black color, bigger font */
.metric-label {
  display: block;
  font-family: var(--font-sf);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-primary);
}

/* ── Image placeholders ── */
.c-img,
.case-hero-image {
  width: 100%;
  background-color: var(--card-bg);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.c-img--hero   { overflow: hidden; }
.c-img--wide   { aspect-ratio: 16 / 7; }
.c-img--square { aspect-ratio: 4 / 3; }

.c-img-label {
  font-family: var(--font-sf-text);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--img-label);
}

/* ── Real case images ── */
.c-case-img {
  width: 100%;
  display: block;
  border-radius: 4px;
}
.c-case-imgs {
  display: flex;
  gap: 8px;
}
.c-case-imgs .c-case-img {
  flex: 1;
}

/* ── Project info grid ── */
.c-info {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.c-info-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-right: 32px;
}

.info-label {
  font-family: var(--font-sf);
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
}

.info-value {
  font-family: var(--font-sf);
  font-weight: 400;
  font-size: 15px;
  line-height: 1.55;
  color: var(--text-primary);
}

/* ── Approach layout ── */
.c-approach-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.c-approach-text {
  font-family: var(--font-sf);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.5;
  letter-spacing: -0.4px;
  color: var(--text-primary);
}

/* ── Context / Objective / Constraints — 3 cols with border ── */
.c-three-cols {
  display: flex;
  border: 1px solid var(--border);
}

.c-col {
  flex: 1;
  padding: 32px;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}
.c-col:last-child { border-right: none; }

/* Constraints as a list inside c-col */
.c-constraints-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.c-constraints-list li {
  font-family: var(--font-sf);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-body);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.c-constraints-list li:first-child { padding-top: 0; }
.c-constraints-list li:last-child  { border-bottom: none; padding-bottom: 0; }

/* ── Section label ── */
.c-label {
  display: block;
  font-family: var(--font-sf);
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

/* ── Section heading ── */
.c-section-title {
  font-family: var(--font-sf);
  font-weight: 700;
  font-size: 40px;
  line-height: 1.15;
  letter-spacing: -1px;
  color: var(--text-primary);
  margin-bottom: 24px;
}

/* ── Body text ── */
.c-body {
  font-family: var(--font-sf);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-body);
}
.c-body + .c-body { margin-top: 20px; }

.c-body--highlight {
  font-family: var(--font-sf);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.5;
  letter-spacing: -0.4px;
  color: var(--text-primary);
}

/* ── Constraints grid ── */
.c-constraints {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background-color: var(--border);
  margin-top: 4px;
}

.c-constraint {
  background-color: var(--bg);
  padding: 32px 40px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.constraint-title {
  font-family: var(--font-sf);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.2px;
  color: var(--text-primary);
}

.constraint-body {
  font-family: var(--font-sf);
  font-weight: 400;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text-secondary);
}

/* ── Approach list ── */
.c-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 32px;
  counter-reset: steps;
  list-style: none;
}

.c-steps li {
  counter-increment: steps;
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-sf-text);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text-body);
  align-items: flex-start;
}
.c-steps li:first-child { padding-top: 16px; }
.c-steps li:last-child  { padding-bottom: 0; border-bottom: none; }

.c-steps li::before {
  content: counter(steps, decimal-leading-zero);
  font-family: var(--font-sf);
  font-weight: 700;
  font-size: 12px;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 3px;
  letter-spacing: 0.5px;
}

/* ── Key decisions ── */
.c-decisions {
  display: flex;
  flex-direction: column;
  gap: 96px;
  margin-top: 16px;
}

.c-decision { display: flex; flex-direction: column; gap: 40px; }

.c-decision-header {
  display: flex;
  align-items: baseline;
  gap: 24px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}

.decision-num {
  font-family: var(--font-sf);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--accent);
  text-transform: uppercase;
  flex-shrink: 0;
}

.decision-title {
  font-family: var(--font-sf);
  font-weight: 700;
  font-size: 36px;
  line-height: 1.15;
  letter-spacing: -0.8px;
  color: var(--text-primary);
}

/* PSR: Problem / Solution / Result */
.c-psr {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

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

.psr-item {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.psr-label {
  font-family: var(--font-sf);
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-secondary);
}

.psr-body {
  font-family: var(--font-sf);
  font-weight: 400;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text-muted);
}

/* ── Design system section ── */
.c-ds {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.c-ds-facts {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 28px;
}

.c-ds-facts li {
  font-family: var(--font-sf-text);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-muted);
  padding-left: 16px;
  position: relative;
}

.c-ds-facts li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--accent);
}

/* ── Outcome ── */
.c-outcome-quote {
  font-family: var(--font-sf);
  font-weight: 400;
  font-style: normal;
  font-size: 18px;
  line-height: 1.75;
  color: var(--text-body);
  padding-left: 24px;
  border-left: 3px solid var(--accent);
}

/* ─── About page ─────────────────────────────────────────────────── */
.about-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 64px;
  padding-bottom: 180px;
  gap: 120px;
}

.about-intro {
  display: flex;
  flex-direction: column;
  gap: 40px;
  width: 100%;
}

.about-intro h1 {
  font-family: var(--font-sf);
  font-weight: 700;
  font-size: 64px;
  line-height: 76px;
  letter-spacing: -2.56px;
  max-width: 760px;
}

.about-intro h1 em {
  font-style: italic;
  color: var(--accent);
}

.about-intro p {
  font-family: var(--font-sf-text);
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-body);
  max-width: 640px;
}

/* ─── Typewriter cursor ─────────────────────────────────────────── */
.typer-cursor {
  display: inline;
  font-weight: 300;
  font-style: normal;
  color: var(--text-secondary);
  animation: cursor-blink 0.65s step-end infinite;
  user-select: none;
}

@keyframes cursor-blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* ─── Card GPU hint ─────────────────────────────────────────────── */
.portfolio-card {
  will-change: opacity, transform;
}

/* ─── Dark mode ──────────────────────────────────────────────────── */
body.dark {
  --bg: #0e0e0e;
  --text-primary: #ffffff;
  --text-secondary: #888888;
  --text-body: #c8c8c8;
  --text-muted: #aaaaaa;
  --accent: #e93c36;
  --card-bg: #1a1a1a;
  --border: #2a2a2a;
  --img-label: #444444;
}

/* ─── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 1280px) {
  :root { --container-width: 100%; }
  .container { padding: 0 40px; }
  .c-wide, .c-text { padding: 0 40px; }
}

@media (max-width: 900px) {
  .page-wrapper { gap: 100px; padding-top: 40px; padding-bottom: 100px; }
  .top-section { gap: 80px; }
  .hero-text { font-size: 40px; line-height: 50px; letter-spacing: -1.5px; }
  .cta-headline { font-size: 40px; line-height: 50px; letter-spacing: -1.5px; }
  .portfolio-row { flex-direction: column; }
  .portfolio-card { aspect-ratio: 4 / 3; }
  .nav-controls { display: none; }
  .contact-links { gap: 32px; flex-wrap: wrap; justify-content: center; }
  .container { padding: 0 20px; }
  /* Case study */
  .c-page { gap: 80px; padding-top: 40px; padding-bottom: 100px; }
  .c-wide, .c-text { padding: 0 20px; width: 100%; }
  .c-title { font-size: 40px; line-height: 50px; letter-spacing: -1.5px; }
  .c-hero-top { grid-template-columns: 1fr; gap: 16px; }
  .c-approach-grid { grid-template-columns: 1fr; }
  .c-three-cols { flex-direction: column; }
  .c-col { border-right: none; border-bottom: 1px solid var(--border); }
  .c-col:last-child { border-bottom: none; }
  .c-metrics { flex-direction: column; }
  .c-metric { border-right: none; border-bottom: 1px solid var(--border); padding: 24px; }
  .c-metric:last-child { border-bottom: none; }
  .metric-value { font-size: 40px; }
  .c-info { grid-template-columns: 1fr 1fr; gap: 32px; }
  .c-constraints { grid-template-columns: 1fr; }
  .c-psr { grid-template-columns: 1fr; }
  .c-ds { grid-template-columns: 1fr; }
  .decision-title { font-size: 26px; }
}

@media (max-width: 600px) {
  .hero-text { font-size: 30px; line-height: 38px; letter-spacing: -1px; }
  .cta-headline { font-size: 30px; line-height: 38px; letter-spacing: -1px; }
  .nav-links { gap: 16px; }
  .nav-right { gap: 24px; }
  .c-title { font-size: 32px; line-height: 40px; letter-spacing: -1px; }
  .c-subtitle { font-size: 16px; }
  .c-info { grid-template-columns: 1fr; }
  .c-section-title { font-size: 28px; }
}