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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ─────────────────────────────────────────
   DESIGN TOKENS
───────────────────────────────────────── */
:root {
  --bg:           #F9F8F5;
  --fg:           #141414;
  --accent:       #CC4A2E;
  --accent-light: #F5E8E4;
  --muted:        #7E7C78;
  --border:       #E6E4DE;
  --surface:      #FFFFFF;
  --surface-alt:  #F2F0EB;

  --font-serif: 'DM Serif Display', Georgia, serif;
  --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --nav-height: 72px;
  --max-width:  1200px;
  --gutter:     clamp(24px, 5vw, 80px);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --t: 0.3s var(--ease-out);
}

/* ─────────────────────────────────────────
   TYPOGRAPHY
───────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ─────────────────────────────────────────
   LAYOUT
───────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ─────────────────────────────────────────
   HEADER / NAV
───────────────────────────────────────── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  background: rgba(249, 248, 245, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t), background var(--t);
}

.header.scrolled {
  border-bottom-color: var(--border);
}

.nav {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.logo {
  font-family: var(--font-serif);
  font-size: 20px;
  letter-spacing: -0.01em;
  transition: opacity var(--t);
}
.logo:hover { opacity: 0.6; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  font-size: 14px;
  font-weight: 400;
  padding: 8px 16px;
  border-radius: 100px;
  color: var(--fg);
  transition: background var(--t), color var(--t), opacity var(--t);
}
.nav-link:hover { background: var(--surface-alt); }
.nav-link.active { font-weight: 500; }

.nav-cta {
  background: var(--fg);
  color: var(--bg);
  font-weight: 500;
}
.nav-cta:hover {
  background: #333;
  color: var(--bg);
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--fg);
  transition: transform var(--t), opacity var(--t);
}

/* ─────────────────────────────────────────
   PAGE OFFSET (for fixed header)
───────────────────────────────────────── */
.page-top {
  padding-top: var(--nav-height);
}

/* ─────────────────────────────────────────
   FOOTER
───────────────────────────────────────── */
.footer {
  margin-top: 120px;
  padding: 48px var(--gutter);
  border-top: 1px solid var(--border);
  max-width: var(--max-width);
  margin-inline: auto;
  margin-top: 120px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}

.footer-name {
  font-family: var(--font-serif);
  font-size: 18px;
}

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

.footer-link {
  font-size: 14px;
  color: var(--muted);
  transition: color var(--t);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.footer-link:hover { color: var(--fg); }

.footer-copy {
  font-size: 12px;
  color: var(--muted);
}

/* ─────────────────────────────────────────
   HOMEPAGE — HERO
───────────────────────────────────────── */
.hero {
  padding-top: calc(var(--nav-height) + 80px);
  padding-bottom: 80px;
  padding-inline: var(--gutter);
  max-width: var(--max-width);
  margin-inline: auto;
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 32px;
}
.hero-tag::before {
  content: '';
  display: block;
  width: 20px;
  height: 1px;
  background: var(--muted);
}

.hero-title {
  font-size: clamp(44px, 7vw, 88px);
  max-width: 14ch;
  margin-bottom: 32px;
}
.hero-title em {
  font-style: italic;
  color: var(--accent);
}

.hero-subtitle {
  font-size: clamp(16px, 1.5vw, 20px);
  color: var(--muted);
  max-width: 52ch;
  line-height: 1.7;
  margin-bottom: 56px;
}

.hero-scroll {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.04em;
}
.hero-scroll-line {
  width: 60px;
  height: 1px;
  background: var(--border);
}

/* ─────────────────────────────────────────
   HOMEPAGE — CASES GRID
───────────────────────────────────────── */
.cases-section {
  padding-inline: var(--gutter);
  max-width: var(--max-width);
  margin-inline: auto;
  padding-bottom: 80px;
}

.cases-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 24px;
}

.case-card {
  border-radius: 16px;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  transition: transform var(--t), box-shadow var(--t);
  cursor: pointer;
}
.case-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.08);
}

.case-card--featured {
  grid-column: 1 / -1;
}

.case-card-link {
  display: block;
}

.case-card--featured .case-card-link {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.case-card-image {
  aspect-ratio: 4/3;
  position: relative;
  overflow: hidden;
}
.case-card--featured .case-card-image {
  aspect-ratio: auto;
  min-height: 360px;
}

.case-card-image-inner {
  position: absolute;
  inset: 0;
  transition: transform 0.6s var(--ease-out);
}
.case-card:hover .case-card-image-inner {
  transform: scale(1.04);
}

/* Case image backgrounds */
.case-card-image--1 .case-card-image-inner {
  background:
    linear-gradient(135deg, rgba(232,128,80,0.40) 0%, rgba(200,60,20,0.40) 100%),
    url('images/agent-suggestions-templates.png') center top / cover no-repeat;
}
.case-card-image--2 .case-card-image-inner {
  background:
    linear-gradient(135deg, rgba(96,144,216,0.40) 0%, rgba(58,101,184,0.40) 100%),
    url('images/case2/dashboard.png') center top / cover no-repeat;
}
.case-card-image--3 .case-card-image-inner {
  background: linear-gradient(135deg, #C0E8D0 0%, #50B078 50%, #2A7850 100%);
}

/* Decorative shapes — only for card 3 (cards 1 & 2 use real screenshots) */
.case-card-image-inner::before,
.case-card-image-inner::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  opacity: 0.25;
}
.case-card-image--1 .case-card-image-inner::before,
.case-card-image--1 .case-card-image-inner::after,
.case-card-image--2 .case-card-image-inner::before,
.case-card-image--2 .case-card-image-inner::after {
  content: none;
}
.case-card-image--3 .case-card-image-inner::before {
  width: 150px; height: 150px;
  background: white;
  top: 20px; right: 30px;
}
.case-card-image--3 .case-card-image-inner::after {
  width: 100px; height: 100px;
  background: white;
  bottom: -20px; left: -20px;
}

.case-card-content {
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 12px;
}
.case-card--featured .case-card-content {
  padding: 48px;
}

.case-keyword {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.case-card-title {
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.5vw, 32px);
  line-height: 1.15;
}
.case-card--featured .case-card-title {
  font-size: clamp(28px, 3vw, 42px);
}

.case-card-subtitle {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.6;
  max-width: 44ch;
}

.case-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--fg);
  margin-top: 8px;
  transition: gap var(--t);
}
.case-card:hover .case-cta { gap: 12px; }

/* ─────────────────────────────────────────
   ABOUT PAGE
───────────────────────────────────────── */
.about-hero {
  padding-top: calc(var(--nav-height) + 80px);
  padding-bottom: 80px;
  padding-inline: var(--gutter);
  max-width: 760px;
  margin-inline: auto;
}

.about-hero-text {}

.about-hero-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 24px;
}

.about-hero-name {
  font-size: clamp(40px, 5vw, 64px);
  margin-bottom: 24px;
  line-height: 1.05;
}

.about-hero-title {
  font-size: 18px;
  color: var(--accent);
  font-family: var(--font-serif);
  font-style: italic;
  margin-bottom: 32px;
}

.about-bio {
  font-size: 17px;
  line-height: 1.8;
  color: var(--muted);
  margin-bottom: 20px;
}

.about-bio strong { color: var(--fg); font-weight: 500; }

.about-photo {
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 3/4;
  background: var(--surface-alt);
  position: relative;
}
.about-photo-placeholder {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, #E8D5C8 0%, #C8A898 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 80px;
  color: rgba(255,255,255,0.5);
}

.about-section {
  padding-inline: var(--gutter);
  max-width: var(--max-width);
  margin-inline: auto;
  margin-bottom: 80px;
}

.about-section-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.experience-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.experience-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}

.experience-period {
  font-size: 13px;
  color: var(--muted);
  padding-top: 4px;
}

.experience-role {
  font-size: 17px;
  font-weight: 500;
  margin-bottom: 4px;
}

.experience-company {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 10px;
}

.experience-desc {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.skill-group {}
.skill-group-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--fg);
  margin-bottom: 12px;
}
.skill-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.skill-list li {
  font-size: 14px;
  color: var(--muted);
}

.currently-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.currently-item-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}
.currently-item-value {
  font-size: 16px;
  line-height: 1.6;
}

/* ─────────────────────────────────────────
   CASE STUDY PAGE
───────────────────────────────────────── */
.case-hero {
  padding-top: var(--nav-height);
}

.case-hero-banner {
  width: 100%;
  height: clamp(300px, 45vh, 520px);
  position: relative;
  overflow: hidden;
}

.case-hero-banner-inner {
  position: absolute;
  inset: 0;
}

/* Banner backgrounds for each case */
.case-banner--1   { background: linear-gradient(135deg, #F5D0B5 0%, #E88050 50%, #CC4A2E 100%); }
.case-banner--2   { background: linear-gradient(135deg, #C5D5F0 0%, #6090D8 50%, #3A65B8 100%); }
.case-banner--3   { background: linear-gradient(135deg, #C0E8D0 0%, #50B078 50%, #2A7850 100%); }
.case-banner--ai  { background: linear-gradient(135deg, #D8D0F8 0%, #8868E0 50%, #4C30B8 100%); }

.case-banner-shape {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
}
/* Hide decorative shapes when using real screenshots */
.case-banner--ai .case-banner-shape,
.case-banner--2  .case-banner-shape { display: none; }

.case-meta-bar {
  padding: 40px var(--gutter);
  max-width: var(--max-width);
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.case-meta-bar--top {
  margin-top: var(--nav-height);
  border-top: 1px solid var(--border);
}

.case-keyword-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 100px;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  width: fit-content;
}

.case-main-title {
  font-size: clamp(36px, 5.5vw, 72px);
  max-width: 18ch;
  line-height: 1.08;
}

.case-main-subtitle {
  font-size: clamp(16px, 1.5vw, 20px);
  color: var(--muted);
  max-width: 60ch;
  line-height: 1.7;
}

.case-metadata {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.case-meta-item {}
.case-meta-item-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}
.case-meta-item-value {
  font-size: 15px;
  font-weight: 400;
}

/* Impact metrics strip */
.case-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  margin: 0 var(--gutter) 0;
  max-width: var(--max-width);
  margin-inline: auto;
  margin-bottom: 80px;
}

.case-metric {
  background: var(--surface);
  padding: 40px;
  text-align: center;
}

.case-metric-number {
  font-family: var(--font-serif);
  font-size: clamp(40px, 5vw, 64px);
  display: block;
  margin-bottom: 8px;
  line-height: 1;
  color: var(--accent);
}

.case-metric-label {
  font-size: 14px;
  color: var(--muted);
  max-width: 22ch;
  margin-inline: auto;
  line-height: 1.5;
}

/* Case body content */
.case-body {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.case-section {
  margin-bottom: 80px;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.case-section-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 6px;
  position: sticky;
  top: calc(var(--nav-height) + 24px);
  height: fit-content;
}

.case-section-content {}

.case-section-title {
  font-size: clamp(24px, 3vw, 36px);
  margin-bottom: 20px;
}

.case-section-text {
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
  margin-bottom: 20px;
  max-width: 68ch;
}
.case-section-text strong { color: var(--fg); font-weight: 500; }

/* Insight cards */
.insights-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.insight-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}

.insight-number {
  font-family: var(--font-serif);
  font-size: 36px;
  color: var(--border);
  margin-bottom: 12px;
  line-height: 1;
}

.insight-title {
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 8px;
}

.insight-text {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}

/* Image placeholder (for design mockups) */
.case-image-placeholder {
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.case-image-placeholder--wide {
  aspect-ratio: 16/9;
  margin-top: 32px;
}

.case-image-placeholder--tall {
  aspect-ratio: 4/3;
}

.case-image-placeholder-label {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.06em;
  position: absolute;
  bottom: 16px;
  left: 16px;
}

.case-image-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

/* Process steps */
.process-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 8px;
}

.process-step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

.process-step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  flex-shrink: 0;
}

.process-step-title {
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 6px;
}

.process-step-text {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

/* Pull quote */
.pull-quote {
  border-left: 3px solid var(--accent);
  padding: 24px 32px;
  margin: 32px 0;
  background: var(--surface);
  border-radius: 0 12px 12px 0;
}

.pull-quote-text {
  font-family: var(--font-serif);
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.5;
  margin-bottom: 16px;
}

.pull-quote-source {
  font-size: 13px;
  color: var(--muted);
}

/* Reflection tags */
.reflection-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 16px;
}

.reflection-item {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.reflection-item-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: 12px;
}

.reflection-item-tag--worked {
  background: #E6F4EC;
  color: #2A7850;
}

.reflection-item-tag--change {
  background: var(--accent-light);
  color: var(--accent);
}

.reflection-item-text {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

/* Next case */
.next-case {
  margin: 80px var(--gutter);
  max-width: var(--max-width);
  margin-inline: auto;
  padding-block: 80px;
  border-top: 1px solid var(--border);
}

.next-case-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 24px;
}

.next-case-link {
  display: inline-flex;
  align-items: baseline;
  gap: 12px;
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 52px);
  line-height: 1.1;
  transition: gap var(--t);
}
.next-case-link:hover { gap: 20px; }

/* ─────────────────────────────────────────
   FADE-IN ANIMATION
───────────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─────────────────────────────────────────
   RESPONSIVE
───────────────────────────────────────── */
@media (max-width: 900px) {
  .cases-grid {
    grid-template-columns: 1fr;
  }
  .case-card--featured .case-card-link {
    grid-template-columns: 1fr;
  }
  .case-card--featured .case-card-image {
    min-height: 260px;
    aspect-ratio: 16/9;
  }

  .about-hero {
    grid-template-columns: 1fr;
  }
  .about-photo {
    max-width: 280px;
    order: -1;
  }

  .case-section {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .case-section-label {
    position: static;
  }

  .case-metrics {
    grid-template-columns: 1fr;
  }

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

  .currently-box {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .reflection-grid,
  .insights-grid,
  .case-image-grid {
    grid-template-columns: 1fr;
  }

  .experience-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

@media (max-width: 600px) {
  :root {
    --gutter: 20px;
  }

  .nav-links { display: none; }
  .nav-links.is-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg);
    padding: 24px var(--gutter);
    border-bottom: 1px solid var(--border);
    gap: 4px;
  }
  .nav-toggle { display: flex; }

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

  .case-metadata {
    gap: 24px;
  }
}