/* Lee D. portfolio — layout styles (design tokens come from colors_and_type.css) */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg-app);
  color: var(--fg-1);
  font-family: var(--font-sans);
  letter-spacing: var(--tracking-base);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: var(--fg-2); text-decoration: none; transition: color 120ms cubic-bezier(0.2,0,0,1); }
a:hover { color: var(--accent-fg); }
h1, h2, h3 { word-break: keep-all; overflow-wrap: anywhere; }
p { text-wrap: pretty; }
.container { max-width: 1040px; margin: 0 auto; padding-left: clamp(20px, 5vw, 48px); padding-right: clamp(20px, 5vw, 48px); }
.mono { font-family: var(--font-mono); }

/* ---- top bar ---- */
.topbar { position: sticky; top: 0; z-index: 50; background: var(--chrome-bg); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--border-1); }
.topbar .container { min-height: 60px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.logo { font-size: 18px; font-weight: 700; letter-spacing: -0.02em; color: var(--fg-1); padding: 16px 0; }
.logo b { color: var(--accent); }
.nav { display: flex; align-items: center; gap: clamp(14px, 2.5vw, 28px); flex-wrap: wrap; font-size: 14px; font-weight: 500; padding: 8px 0; }
.nav-cta { color: var(--fg-1); border: 1px solid var(--border-2); border-radius: var(--radius-md); padding: 8px 16px; }
.nav-cta:hover { color: var(--accent-fg); border-color: var(--border-strong); }
.lang-btn { display: inline-flex; align-items: center; gap: 6px; min-height: 36px; border: 1px solid var(--border-1); border-radius: var(--radius-pill); padding: 6px 14px; font-family: var(--font-mono); font-size: 12px; font-weight: 500; color: var(--fg-2); }
.lang-btn:hover { color: var(--accent-fg); border-color: var(--border-strong); }

/* ---- hero ---- */
.hero .container { padding-top: clamp(96px, 18vh, 180px); padding-bottom: clamp(80px, 14vh, 140px); }
.eyebrow { margin: 0 0 20px; font-family: var(--font-mono); font-size: 13px; color: var(--fg-3); letter-spacing: 0; }
.eyebrow b { font-weight: 400; color: var(--accent-fg); }
.hero .eyebrow { color: var(--accent-fg); }
.hero h1 { margin: 0 0 28px; max-width: 760px; font-size: clamp(34px, 6.5vw, 62px); font-weight: 700; line-height: 1.25; letter-spacing: -0.03em; text-wrap: balance; }
.hero-line { margin: 0; max-width: 640px; font-size: clamp(17px, 2.4vw, 21px); line-height: 1.7; color: var(--fg-2); word-break: keep-all; }
.hero-meta { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 8px 16px; font-family: var(--font-mono); font-size: 12px; color: var(--fg-3); }
.hero-ctas { margin-top: clamp(40px, 7vh, 64px); display: flex; flex-wrap: wrap; gap: 12px; }
.btn-primary { display: inline-flex; align-items: center; gap: 10px; background: var(--fg-1); border: 1px solid var(--fg-1); border-radius: var(--radius-lg); padding: 16px 26px; min-height: var(--tap-min); font-size: 15px; font-weight: 600; color: var(--bg-app); }
.btn-primary:hover { color: var(--bg-app); opacity: 0.88; }
.btn-primary:active, .btn-ghost:active, .copy-btn:active { transform: scale(0.97); }
.btn-ghost { display: inline-flex; align-items: center; gap: 10px; border: 1px solid var(--border-2); border-radius: var(--radius-lg); padding: 16px 24px; min-height: var(--tap-min); font-size: 15px; font-weight: 500; color: var(--fg-2); }
.btn-ghost:hover { color: var(--accent-fg); border-color: var(--border-strong); }
.scroll-cue { display: inline-flex; align-items: center; gap: 8px; margin-top: clamp(36px, 6vh, 56px); font-size: 13px; color: var(--fg-3); }

/* ---- sections ---- */
.section { border-top: 1px solid var(--border-1); scroll-margin-top: 80px; }
.section.alt { background: var(--bg-1); }
.section .container { padding-top: clamp(64px, 10vh, 112px); padding-bottom: clamp(64px, 10vh, 112px); }
.section-title { margin: 0 0 16px; font-size: clamp(24px, 3.5vw, 34px); font-weight: 700; letter-spacing: -0.02em; line-height: 1.3; }
.section-intro { margin: 0 0 clamp(36px, 6vh, 56px); max-width: 640px; font-size: 15px; line-height: 1.7; color: var(--fg-2); }
.section-title.solo { margin-bottom: clamp(36px, 6vh, 56px); }

/* ---- expertise ---- */
.skills { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); gap: 20px; }
.skill-card { background: var(--bg-1); border: 1px solid var(--border-1); border-radius: var(--radius-lg); padding: clamp(24px, 3vw, 32px); display: flex; flex-direction: column; gap: 24px; min-width: 0; }
.skill-card .k-en { margin: 0 0 8px; font-family: var(--font-mono); font-size: 12px; color: var(--fg-3); }
.skill-card h3 { margin: 0; font-size: 20px; font-weight: 700; letter-spacing: -0.01em; }
.k-label { margin: 0 0 10px; font-size: 12px; font-weight: 600; color: var(--accent-fg); letter-spacing: 0.02em; }
.k-body { margin: 0; font-size: 15px; line-height: 1.7; color: var(--fg-2); }
.skill-card .approach { border-top: 1px solid var(--border-1); padding-top: 24px; }
.skill-card .caps { margin-top: auto; border-top: 1px solid var(--border-1); padding-top: 20px; }
.caps-label { margin: 0 0 12px; font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); letter-spacing: 0.04em; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { display: inline-flex; align-items: center; padding: 5px 12px; background: var(--bg-2); border: 1px solid var(--border-1); border-radius: var(--radius-pill); font-size: 12.5px; color: var(--fg-2); }
.chip.core { padding: 6px 14px; background: var(--accent-fill-weak); border-color: var(--accent); font-size: 13px; font-weight: 500; color: var(--accent-fg); white-space: nowrap; }
.chip.ghost { padding: 6px 14px; background: none; font-size: 13px; color: var(--fg-3); white-space: nowrap; }

/* ---- architecture ---- */
.arch .container { display: flex; flex-direction: column; gap: clamp(56px, 9vh, 88px); }
.arch-head .section-intro { margin-bottom: 0; max-width: 560px; }
.arch-row { display: flex; flex-wrap: wrap; gap: clamp(24px, 4vw, 48px); align-items: flex-start; }
.arch-row.reverse { flex-direction: row-reverse; }
.diagram { flex: 1 1 440px; min-width: 0; background: var(--bg-inset); border: 1px solid var(--border-2); border-radius: var(--radius-lg); padding: clamp(20px, 3vw, 32px); display: flex; flex-direction: column; }
.d-title { margin: 0 0 20px; font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); letter-spacing: 0.04em; }
.d-node { text-align: center; background: var(--bg-2); border: 1px solid var(--border-1); border-radius: var(--radius-md); padding: 12px 14px; font-size: 13px; color: var(--fg-2); }
.d-node small { font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); }
.d-node.accent { background: var(--accent-fill-weak); border-color: var(--accent); font-weight: 600; color: var(--accent-fg); }
.d-node.accent small { color: var(--accent-fg); font-weight: 400; }
.d-node.strong { border-color: var(--border-2); color: var(--fg-1); }
.d-link { height: 22px; width: 1px; background: var(--border-strong); margin: 0 auto; }
.d-link.accent { background: var(--accent); }
.d-row { display: flex; gap: 8px; }
.d-row .d-node { flex: 1 1 0; min-width: 0; padding: 12px 10px; }
.d-split { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 120px), 1fr)); gap: 8px; }
.d-split .d-node { padding: 14px 10px; }
.d-split .d-node p { margin: 0; font-size: 13px; color: var(--fg-1); }
.d-split .d-node small { display: block; margin-top: 4px; }
.d-notes { margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border-1); display: flex; flex-wrap: wrap; gap: 8px 20px; font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); }
.arch-copy { flex: 1 1 280px; min-width: 0; display: flex; flex-direction: column; gap: 12px; }
.arch-copy .case-tag { margin: 0; font-family: var(--font-mono); font-size: 12px; color: var(--fg-3); }
.arch-copy h3 { margin: 0; font-size: 19px; font-weight: 700; letter-spacing: -0.01em; line-height: 1.4; }
.arch-copy .k-body { font-size: 15px; }
.case-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 4px; font-size: 13.5px; font-weight: 500; color: var(--accent-fg); }
.case-link:hover { text-decoration: underline; }

/* ---- cases ---- */
.stats { margin-bottom: clamp(40px, 6vh, 56px); padding: clamp(20px, 3vw, 28px) 0; border-top: 1px solid var(--border-1); border-bottom: 1px solid var(--border-1); }
.stats-label, .list-label { margin: 0 0 20px; font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); letter-spacing: 0.04em; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(50% - 12px, 140px), 1fr)); gap: 24px clamp(20px, 4vw, 40px); }
.stat-value { margin: 0; font-size: clamp(26px, 4vw, 36px); font-weight: 700; letter-spacing: -0.03em; line-height: 1.1; }
.stat-label { margin: 6px 0 0; font-size: 13px; line-height: 1.5; color: var(--fg-3); }
.stance { margin-bottom: clamp(32px, 5vh, 48px); border-left: 2px solid var(--accent); padding: 4px 0 4px clamp(20px, 3vw, 28px); display: flex; flex-direction: column; gap: 20px; }
.stance h3 { margin: 0 0 12px; font-size: clamp(18px, 2.4vw, 22px); font-weight: 700; letter-spacing: -0.01em; line-height: 1.45; }
.stance > div { max-width: 640px; }
.stance ul { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); gap: 12px clamp(24px, 4vw, 40px); }
.stance li { display: flex; gap: 10px; align-items: flex-start; min-width: 0; font-size: 14px; line-height: 1.7; color: var(--fg-2); }
.stance li::before { content: ""; flex-shrink: 0; margin-top: 10px; width: 4px; height: 4px; border-radius: var(--radius-pill); background: var(--accent); }
.list-label { margin-bottom: 16px; }
.cases { display: flex; flex-direction: column; gap: 16px; }
details.case { background: var(--bg-1); border: 1px solid var(--border-1); border-radius: var(--radius-lg); overflow: hidden; min-width: 0; }
details.case summary { list-style: none; display: flex; align-items: flex-start; justify-content: space-between; gap: clamp(16px, 3vw, 32px); flex-wrap: wrap; padding: clamp(24px, 3vw, 32px); cursor: pointer; min-height: var(--tap-min); }
details.case summary::-webkit-details-marker { display: none; }
details.case summary:hover { background: var(--bg-2); }
.case-head { flex: 1 1 300px; min-width: 0; display: flex; flex-direction: column; gap: 10px; }
.case-meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); }
.case-meta .pill { display: inline-flex; align-items: center; padding: 4px 10px; background: var(--bg-2); border: 1px solid var(--border-1); border-radius: var(--radius-pill); }
.case-meta .dot { color: var(--border-strong); }
.case-title { font-size: clamp(17px, 2.2vw, 19px); font-weight: 700; line-height: 1.5; letter-spacing: -0.01em; word-break: keep-all; }
.case-metric-wrap { flex: 0 1 auto; display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.case-metric { display: flex; flex-direction: column; gap: 2px; }
.case-metric b { font-size: clamp(20px, 3vw, 26px); font-weight: 700; color: var(--accent-fg); letter-spacing: -0.02em; white-space: nowrap; }
.case-metric span { font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); white-space: nowrap; }
.case-chevron { flex-shrink: 0; color: var(--fg-3); transition: transform 120ms cubic-bezier(0.2,0,0,1); }
details.case[open] .case-chevron { transform: rotate(180deg); }
.case-body { padding: 24px clamp(24px, 3vw, 32px) clamp(24px, 3vw, 32px); border-top: 1px solid var(--border-1); display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); gap: 24px clamp(24px, 4vw, 40px); }
.case-body .k-body { font-size: 15px; }
.case-tech { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; border-top: 1px solid var(--border-1); padding-top: 20px; }
.case-tech .label { font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); letter-spacing: 0.04em; margin-right: 4px; }
.short-list { display: flex; flex-direction: column; }
.short-list .list-label { margin: clamp(40px, 6vh, 56px) 0 16px; }
.short-row { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px clamp(16px, 3vw, 28px); padding: 20px 0; border-top: 1px solid var(--border-1); min-width: 0; }
.short-row .period { flex: 0 0 auto; font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); min-width: 110px; }
.short-row .sector { flex: 0 0 auto; font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); min-width: 90px; }
.short-row .body { flex: 1 1 260px; min-width: 0; display: flex; flex-direction: column; gap: 8px; }
.short-row .title { font-size: 15px; line-height: 1.6; color: var(--fg-2); word-break: keep-all; }
.short-row .tags { display: flex; flex-wrap: wrap; gap: 6px; }
.short-row .tag { display: inline-flex; align-items: center; padding: 3px 10px; border: 1px solid var(--border-1); border-radius: var(--radius-pill); font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); white-space: nowrap; }
.short-row .metric { flex: 0 0 auto; font-size: 14px; font-weight: 600; color: var(--accent-fg); white-space: nowrap; }
.nda-note { margin: 28px 0 0; font-size: 13px; line-height: 1.7; color: var(--fg-3); max-width: 620px; }
.nda { margin-top: clamp(40px, 7vh, 64px); background: var(--bg-1); border: 1px solid var(--border-2); border-radius: var(--radius-lg); padding: clamp(24px, 3.5vw, 40px); display: flex; flex-wrap: wrap; gap: clamp(24px, 4vw, 48px); }
.nda > div { flex: 1 1 300px; min-width: 0; }
.nda-tag { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.nda-tag p { margin: 0; font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); letter-spacing: 0.04em; }
.nda h3 { margin: 0 0 14px; font-size: clamp(18px, 2.4vw, 21px); font-weight: 700; letter-spacing: -0.01em; line-height: 1.4; }
.nda ul { flex: 1 1 300px; min-width: 0; margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 14px; }
.nda li { display: flex; gap: 12px; align-items: flex-start; font-size: 14px; line-height: 1.7; color: var(--fg-2); }
.nda li svg, .scope li svg { flex-shrink: 0; margin-top: 3px; }

/* ---- process ---- */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); gap: 24px clamp(24px, 4vw, 40px); }
.step { min-width: 0; border-top: 1px solid var(--border-2); padding-top: 20px; display: flex; flex-direction: column; gap: 10px; }
.step .n { margin: 0; font-family: var(--font-mono); font-size: 12px; color: var(--accent-fg); }
.step h3 { margin: 0; font-size: 17px; font-weight: 700; letter-spacing: -0.01em; }
.step p { margin: 0; font-size: 14px; line-height: 1.7; color: var(--fg-2); }
.scopes { margin-top: clamp(40px, 7vh, 64px); display: flex; flex-wrap: wrap; gap: 20px; }
.scope { flex: 1 1 320px; min-width: 0; background: var(--bg-2); border: 1px solid var(--border-1); border-radius: var(--radius-lg); padding: clamp(24px, 3vw, 32px); }
.scope .scope-label { margin: 0 0 16px; font-size: 13px; font-weight: 600; color: var(--accent-fg); }
.scope.out .scope-label { color: var(--fg-3); }
.scope ul { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 12px; }
.scope li { display: flex; gap: 10px; align-items: flex-start; font-size: 14.5px; line-height: 1.6; color: var(--fg-2); }
.scope.out li { color: var(--fg-3); }

/* ---- stack ---- */
.stack-rows { display: flex; flex-direction: column; }
.stack-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); gap: 12px 32px; padding: 24px 0; border-top: 1px solid var(--border-1); align-items: baseline; }
.stack-row .head { max-width: 240px; }
.stack-row .head p { margin: 0; font-size: 16px; font-weight: 600; }
.stack-row .head small { margin: 6px 0 0; display: flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); }
.stack-row .head small .dot { color: var(--border-strong); }
.stack-row .chips { grid-column: span 2; align-items: center; }

/* ---- contact / footer ---- */
.contact-actions { display: flex; flex-wrap: wrap; gap: 16px; }
.copy-btn { display: inline-flex; align-items: center; gap: 10px; background: none; border: 1px solid var(--border-2); border-radius: var(--radius-lg); padding: 18px 24px; min-height: var(--tap-min); font-family: var(--font-sans); font-size: 15px; font-weight: 500; color: var(--fg-2); cursor: pointer; letter-spacing: var(--tracking-base); transition: color 120ms cubic-bezier(0.2,0,0,1), border-color 120ms cubic-bezier(0.2,0,0,1); }
.copy-btn:hover { color: var(--accent-fg); border-color: var(--border-strong); }
.btn-mail { padding: 18px 28px; font-size: 16px; gap: 12px; }
footer { border-top: 1px solid var(--border-1); }
footer .container { padding-top: 28px; padding-bottom: 28px; display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--fg-3); }