/*
 * system.css — Portfolio Design System
 * Source of truth for all shared visual styles.
 * Reference: ai-enablement-v3.html
 *
 * PAGE-SPECIFIC overrides stay inline in each HTML file:
 *   - index-v3: body overflow:hidden, height:100%, #grid/#nav/#projects
 *   - case studies: hero/image section specifics, wind pre element
 */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── TOKENS ──────────────────────────────────────────────────────── */
:root {
  --bg:    #f5f0e8;
  --field: #c8bfae;
  --mid:   #8a8070;
  --text:  #2a2520;
}

/* ── BASE ────────────────────────────────────────────────────────── */
html, body {
  width: 100%;
  background: var(--bg);
}

body {
  font-family: "SF Mono","Fira Mono","Consolas","Menlo",monospace;
  font-size: 13px;
  line-height: 16px;
  letter-spacing: 0;
  color: var(--mid);
  -webkit-font-smoothing: antialiased;
}

/* ── TYPOGRAPHY ──────────────────────────────────────────────────── */
h2 {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--mid);
  margin-bottom: 16px;
}

h3 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
}

h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
}

p {
  color: var(--mid);
  margin-bottom: 16px;
  line-height: 16px;
}

p:last-child { margin-bottom: 0; }

/* ── LINKS ───────────────────────────────────────────────────────── */
a { color: var(--text); text-decoration: none; }
a:hover { color: var(--mid); }

.inline-link {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}

/* ── WIND TEXT MASKING ───────────────────────────────────────────── */
/* Per-glyph background — lets wind show through margins between letters */
.hero-text-bg {
  display: inline;
  background: var(--bg);
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
  padding: 0;
}

/* Scramble splits .hero-text-bg into per-char spans — carry bg through */
.scramble > span {
  background: var(--bg);
}

/* ── LAYOUT ──────────────────────────────────────────────────────── */
/* Case study sections */
section:not(.full):not(.wide) {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 48px;
  padding-right: 48px;
  background: transparent;
  padding-block: 48px;
}

section.wide {
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 48px;
  padding-right: 48px;
  padding-block: 80px;
}

section.full {
  padding: 0;
  max-width: none;
  width: 100%;
}

/* ── HERO (case pages) ───────────────────────────────────────────── */
.hero {
  width: 100%;
  padding-top: 112px;
  padding-bottom: 52px;
}

.hero-inner {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  background: transparent;
}

.hero-inner > * {
  display: block;
  margin-left: var(--snap-pad, 48px);
  margin-right: var(--snap-pad, 48px);
  background: transparent;
  line-height: 16px;
}

.hero-inner > .hero-meta {
  display: flex;
  margin-left: var(--snap-pad, 48px);
  margin-right: var(--snap-pad, 48px);
  background: transparent;
}

.hero-label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--mid);
  margin-bottom: 0;
}

.hero h1 {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text);
  margin-bottom: 32px;
}

.lead {
  color: var(--text);
  margin-bottom: 16px;
  line-height: 16px;
}

.hero-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px 32px;
  padding-top: 32px;
}

.hero-meta-item {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.hero-meta-label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--mid);
}

.hero-meta-value {
  font-weight: 600;
  color: var(--text);
}

@media (max-width: 768px) {
  .hero { padding-left: 24px; padding-right: 24px; }
  .hero-meta { grid-template-columns: 1fr; gap: 16px; }
}

/* ── WIND PRE (case pages) ───────────────────────────────────────── */
#wind-global {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  z-index: 0;
  pointer-events: none;
  user-select: none;
  color: var(--field);
  font-family: "SF Mono","Fira Mono","Consolas","Menlo",monospace;
  font-size: 13px;
  line-height: 16px;
  letter-spacing: 0;
  white-space: pre;
  overflow: hidden;
  margin: 0; padding: 0;
}

.page {
  position: relative;
  z-index: 1;
  padding: 0 0 80px;
  background: transparent;
}

/* ── TOP NAV ─────────────────────────────────────────────────────── */
.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 2;
  background: var(--bg);
  border-bottom: 1px solid var(--mid);
  height: 32px;
  display: flex;
  align-items: center;
  padding: 0 32px;
  font-size: 13px;
}

.top-nav a { color: var(--mid); text-decoration: none; }
.top-nav a:hover { color: var(--text); }

@media (max-width: 768px) {
  .top-nav { padding: 0 16px; }
}

/* ── FOOTER ──────────────────────────────────────────────────────── */
footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2;
  background: var(--bg);
  border-top: 1px solid var(--mid);
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  font-size: 13px;
}

footer p { color: var(--mid); margin: 0; }
footer a { color: var(--mid); text-decoration: none; }
footer a:hover { color: var(--text); }

/* ── CASE NAVIGATION ─────────────────────────────────────────────── */
/* Sits above wind layer */
.case-nav {
  position: relative;
  z-index: 2;
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 48px 80px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.case-nav-next {
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  white-space: nowrap;
}

.case-nav-next:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.case-nav-sep {
  flex: 1 1 auto;
  position: relative;
  height: 16px;
  min-width: 32px;
}

.case-nav-sep::before {
  content: "";
  position: absolute;
  left: 0; right: 0;
  top: 7px;
  border-top: 1px solid var(--mid);
  opacity: 0.4;
}

.case-nav-sep::after {
  content: "//";
  position: absolute;
  right: 8px;
  top: 0;
  padding: 0 4px;
  color: var(--mid);
  background: var(--bg);
  opacity: 0.7;
}

.case-nav-agent {
  color: var(--mid);
  text-decoration: none;
  white-space: nowrap;
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
}

.case-nav-agent:hover { color: var(--text); }

.case-nav-file {
  padding: 0 5px;
  background: var(--field);
  border: 1px solid var(--mid);
  color: var(--text);
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
}

.case-nav-agent:hover .case-nav-file {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.case-nav-cursor {
  color: var(--mid);
  animation: blink 1s step-end infinite;
}

.case-nav-agent:hover .case-nav-file .case-nav-cursor {
  color: var(--bg);
  animation: none;
  opacity: 0;
}

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

@media (max-width: 760px) {
  .case-nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 32px 24px 72px;
  }
  .case-nav-sep { display: none; }
}

/* ── CALLOUT ─────────────────────────────────────────────────────── */
.callout {
  border-left: 2px solid var(--mid);
  padding-left: 2ch;
  color: var(--text);
  margin: 32px 0;
}

.callout p {
  color: var(--text);
  margin: 0;
}

/* ── BLOCKQUOTE ──────────────────────────────────────────────────── */
blockquote {
  border-left: 1px dashed var(--mid);
  padding-left: 2ch;
  margin: 32px 0;
}

blockquote p {
  color: var(--text);
  font-style: normal;
  margin: 0;
}

/* ── STAT ROW ────────────────────────────────────────────────────── */
.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--mid);
  outline: 1px solid var(--mid);
  margin: 32px 0;
}

.stat {
  background: var(--bg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.stat-number {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.stat-label { color: var(--mid); }

/* ── IMAGE PAIR ──────────────────────────────────────────────────── */
.image-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--mid);
  outline: 1px solid var(--mid);
  margin: 0;
}

.image-pair img {
  width: 100%;
  height: auto;
  display: block;
}

@media (max-width: 768px) {
  .image-pair { grid-template-columns: 1fr; }
}

/* ── WORKSTREAM GRID ─────────────────────────────────────────────── */
.workstream-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--mid);
  outline: 1px solid var(--mid);
  margin: 32px 0;
}

.workstream {
  background: var(--bg);
  padding: 32px;
}

.workstream-number {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--mid);
  margin-bottom: 16px;
}

/* ── IMAGE PLACEHOLDER ───────────────────────────────────────────── */
.image-placeholder {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  border: 1px solid var(--mid);
  color: var(--mid);
  font-family: inherit;
  font-size: 13px;
  letter-spacing: 0.05em;
  aspect-ratio: 16/9;
}

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

/* ── TWO COL ─────────────────────────────────────────────────────── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

/* ── REDUCED MOTION ──────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  /* Pages should pause wind animation when this fires.
     JS checks this via window.matchMedia('(prefers-reduced-motion: reduce)') */
  * { transition: none !important; animation: none !important; }
}

/* ── RESPONSIVE ──────────────────────────────────────────────────── */
/* ── FULL-SECTION INNER WRAPPER ──────────────────────────────────── */
.full-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 48px;
  box-sizing: border-box;
}

@media (max-width: 768px) {
  .hero { padding-top: 80px; }
  section:not(.full):not(.wide) { padding-left: 24px; padding-right: 24px; }
  .stat-row { grid-template-columns: 1fr; }
  .workstream-grid { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; gap: 32px; }
  footer { padding: 0 16px; }
  .full-inner { padding: 0 24px; }
  .full-inner.gif-grid { grid-template-columns: 1fr !important; }
}

/* ── PASSWORD OVERLAY ────────────────────────────────────────────── */
#pw-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "SF Mono","Fira Mono","Consolas","Menlo",monospace;
  font-size: 13px;
  line-height: 16px;
}

#pw-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  cursor: text;
}

#pw-label {
  color: var(--mid);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 11px;
}

#pw-input {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--mid);
  outline: none;
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  line-height: 16px;
  text-align: center;
  width: 200px;
  padding: 4px 0;
  caret-color: var(--text);
}

#pw-input:focus {
  border-bottom-color: var(--text);
}

#pw-error {
  color: var(--mid);
  font-size: 11px;
  letter-spacing: 0.05em;
  min-height: 16px;
}

#pw-contact {
  color: var(--mid);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-decoration: none;
  border-bottom: 1px solid var(--field);
  padding-bottom: 1px;
}

#pw-contact:hover {
  color: var(--text);
  border-bottom-color: var(--mid);
}

/* ── CASE NAVIGATION BOXES ───────────────────────────────────────── */
.case-nav-boxes {
  position: relative;
  z-index: 2;
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 48px 80px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.case-nav-box {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--field);
  padding: 24px;
  text-decoration: none;
  color: var(--text);
}

.case-nav-box:hover { border-color: var(--mid); }

.case-nav-box-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--mid);
  margin-bottom: 12px;
}

.case-nav-box-title {
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}

.case-nav-box-desc {
  color: var(--mid);
  line-height: 16px;
}

@media (max-width: 600px) {
  .case-nav-boxes {
    grid-template-columns: 1fr;
    padding: 32px 24px 72px;
  }
}