/* ============================================================
   Cercand — Brand CSS  v1
   Tokens from the Brand Identity guide (warm paper palette)
   ============================================================ */

/* ---- TOKENS ---- */
:root {
  --paper:      #F4F0E8;
  --paper-2:    #FBF8F2;
  --paper-3:    #EFEADF;
  --ink:        #221F1A;
  --ink-2:      #46413A;
  --ink-3:      #847C70;
  --line:       #DED7C8;
  --line-2:     #CFC6B4;
  --clay:       oklch(0.585 0.115 45);
  --pine:       oklch(0.585 0.090 150);
  --slate:      oklch(0.585 0.090 245);
  --clay-soft:  oklch(0.585 0.115 45 / 0.10);
  --pine-soft:  oklch(0.585 0.090 150 / 0.10);
  --slate-soft: oklch(0.585 0.090 245 / 0.10);

  --maxw: 1080px;
  --pad:  clamp(20px, 4vw, 40px);
  --radius: 6px;
}

/* ---- RESET ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body {
  background: var(--paper);
  color: var(--ink);
  font-family: "Hanken Grotesk", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  letter-spacing: -0.005em;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font: inherit; }
::selection { background: var(--clay); color: var(--paper-2); }

/* ---- LAYOUT ---- */
.wrap    { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); }
.section { padding: 96px 0; }
.section + .section { border-top: 1px solid var(--line); }

/* ---- TYPE SCALE ---- */
.display {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 500;
  font-size: clamp(44px, 8vw, 80px);
  letter-spacing: -0.03em;
  line-height: 1.0;
}
h1, .h1 {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 500;
  font-size: clamp(32px, 5vw, 52px);
  letter-spacing: -0.03em;
  line-height: 1.08;
}
h2, .h2 {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 500;
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: -0.02em;
  line-height: 1.2;
}
h3, .h3 {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 500;
  font-size: 20px;
  letter-spacing: -0.015em;
  line-height: 1.3;
}
.body-lead {
  font-size: 19px;
  color: var(--ink-2);
  line-height: 1.6;
  max-width: 52ch;
}
.mono {
  font-family: "Space Mono", monospace;
}
.eyebrow {
  font-family: "Space Mono", monospace;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.sec-num {
  font-family: "Space Mono", monospace;
  font-size: 12px;
  color: var(--clay);
  letter-spacing: 0.05em;
}
em.accent { font-style: normal; color: var(--clay); }

/* ---- WORDMARK ---- */
.wordmark {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 0.9;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
}
.wordmark .dot { color: var(--clay); }

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 500;
  font-size: 14.5px;
  letter-spacing: -0.01em;
  border-radius: var(--radius);
  padding: 10px 20px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  transition: opacity 0.15s;
}
.btn:hover { opacity: 0.85; }
.btn.ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-2);
}
.btn.ghost:hover { background: var(--paper-3); opacity: 1; }
.btn.clay {
  background: var(--clay);
  border-color: var(--clay);
  color: var(--paper-2);
}

/* ---- PILLS / BADGES ---- */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: "Space Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 999px;
}
.pill.live    { background: var(--pine-soft); color: var(--pine); }
.pill.soon    { background: var(--clay-soft); color: var(--clay); }
.pill.live::before, .pill.soon::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: currentColor;
}

/* ---- NAV ---- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.site-nav .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: 24px;
}
.nav-wordmark { font-size: 22px; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}
.nav-links a {
  font-family: "Space Grotesk", sans-serif;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink-2);
  letter-spacing: -0.01em;
  transition: color 0.15s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--ink); }
.nav-links a.active {
  position: relative;
}
.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -3px; left: 0; right: 0;
  height: 1.5px;
  background: var(--clay);
  border-radius: 1px;
}

/* language switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 2px;
}
.lang-btn {
  font-family: "Space Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  background: none;
  border: none;
  padding: 4px 6px;
  border-radius: 3px;
  transition: color 0.15s, background 0.15s;
}
.lang-btn:hover { color: var(--ink); background: var(--paper-3); }
.lang-btn.active { color: var(--clay); font-weight: 700; }

/* hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--ink);
  border-radius: 1px;
  transition: transform 0.2s, opacity 0.2s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* mobile nav drawer */
.nav-drawer {
  display: none;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--line);
  background: var(--paper);
}
.nav-drawer.open { display: flex; }
.nav-drawer a {
  font-family: "Space Grotesk", sans-serif;
  font-size: 16px;
  font-weight: 500;
  color: var(--ink-2);
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.nav-drawer a:hover { color: var(--ink); }
.nav-drawer .lang-row {
  display: flex;
  gap: 6px;
  padding: 14px 0;
}

/* ---- FOOTER ---- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 64px 0 80px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-wordmark { font-size: 30px; }
.footer-meta {
  font-family: "Space Mono", monospace;
  font-size: 11.5px;
  color: var(--ink-3);
  text-align: right;
  line-height: 1.9;
}
.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
  margin-top: 16px;
}
.footer-links a {
  font-size: 13.5px;
  color: var(--ink-3);
  transition: color 0.15s;
}
.footer-links a:hover { color: var(--ink); }

/* ---- HOME: HERO ---- */
.hero {
  min-height: calc(100svh - 60px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: 80px 0;
}
.hero-content { display: flex; flex-direction: column; gap: 32px; }
.hero-content .display { max-width: 14ch; }
.hero-content .body-lead { max-width: 44ch; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* API visual card */
.hero-visual {
  position: relative;
}
.api-card {
  background: var(--ink);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid #34302a;
  box-shadow: 0 32px 64px -32px rgba(34,31,26,.55);
}
.api-card .bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 16px;
  border-bottom: 1px solid #34302a;
}
.api-card .bar .dot { width: 10px; height: 10px; border-radius: 50%; background: #4a443c; }
.api-card .bar .title {
  margin-left: 8px;
  font-family: "Space Mono", monospace;
  font-size: 11px;
  color: #9b9284;
  letter-spacing: 0.05em;
}
.api-card pre {
  padding: 20px 18px;
  font-family: "Space Mono", monospace;
  font-size: 12.5px;
  line-height: 1.8;
  color: #cabfae;
  overflow-x: auto;
}
.api-card .c-key { color: var(--clay); }
.api-card .c-str { color: oklch(0.72 0.09 150); }
.api-card .c-num { color: oklch(0.70 0.09 245); }
.api-card .c-com { color: #6f675b; }
.api-card .c-field { color: #cabfae; }

/* floating stat chip */
.hero-stat {
  position: absolute;
  bottom: -18px;
  right: -18px;
  background: var(--paper-2);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  padding: 14px 18px;
  box-shadow: 0 12px 28px -12px rgba(34,31,26,.25);
}
.hero-stat .num {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  font-size: 26px;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.hero-stat .lbl {
  font-family: "Space Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-top: 2px;
}

/* ---- HOME: SERVICES ---- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 48px;
}
.service-card {
  background: var(--paper-2);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.service-card + .service-card { border-left: 1px solid var(--line); }
.service-icon {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: var(--clay-soft);
  border-radius: var(--radius);
  color: var(--clay);
}
.service-card h3 { font-size: 18px; }
.service-card p { color: var(--ink-2); font-size: 15px; line-height: 1.6; }

/* ---- HOME: USE CASE ---- */
.usecase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.usecase-visual {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
.uc-table-head {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
  background: var(--paper-3);
  border-bottom: 1px solid var(--line);
  padding: 10px 18px;
  font-family: "Space Mono", monospace;
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.uc-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  align-items: center;
}
.uc-row:last-child { border-bottom: none; }
.uc-row .price { font-family: "Space Mono", monospace; font-size: 13px; color: var(--ink); }
.uc-row .lower { color: var(--pine); font-weight: 600; }
.uc-row .higher { color: var(--clay); font-weight: 600; }
.uc-row .name { color: var(--ink-2); }
.uc-footer {
  padding: 12px 18px;
  background: var(--paper-3);
  border-top: 1px solid var(--line);
  font-family: "Space Mono", monospace;
  font-size: 10.5px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
}

.usecase-text { display: flex; flex-direction: column; gap: 24px; }
.usecase-text p { color: var(--ink-2); line-height: 1.7; }
.sec-header {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 48px;
}

/* ---- HOME: CTA STRIP ---- */
.cta-strip {
  background: var(--ink);
  border-radius: 10px;
  padding: 64px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}
.cta-strip h2 { color: var(--paper); }
.cta-strip p { color: var(--ink-3); margin-top: 8px; font-size: 16px; }
.cta-strip .btn.ghost {
  border-color: #4a443c;
  color: var(--paper-2);
}
.cta-strip .btn.ghost:hover { background: #2c2822; }

/* ---- PROJECTS ---- */
.page-hero {
  padding: 72px 0 64px;
  border-bottom: 1px solid var(--line);
}
.page-hero .eyebrow { margin-bottom: 14px; }
.page-hero p { color: var(--ink-2); margin-top: 16px; max-width: 52ch; font-size: 17px; }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.project-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper-2);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s;
}
.project-card:hover {
  box-shadow: 0 8px 24px -12px rgba(34,31,26,.18);
}
.project-card-head {
  padding: 26px 26px 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}
.project-card-body { padding: 16px 26px 0; flex: 1; }
.project-card-body p { color: var(--ink-2); font-size: 15px; line-height: 1.6; }
.project-meta {
  padding: 20px 26px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 24px;
}
.meta-item .k {
  font-family: "Space Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.meta-item .v {
  font-family: "Space Mono", monospace;
  font-size: 13px;
  color: var(--ink);
  margin-top: 3px;
}
.project-endpoint {
  margin: 0 26px;
  padding: 12px 14px;
  background: var(--paper-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-family: "Space Mono", monospace;
  font-size: 12px;
  color: var(--ink-2);
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
}
.endpoint-method {
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clay);
  border: 1px solid var(--clay-soft);
  background: var(--clay-soft);
  border-radius: 3px;
  padding: 2px 6px;
  flex-shrink: 0;
}
.endpoint-url { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.project-actions {
  padding: 20px 26px 26px;
  display: flex;
  gap: 10px;
}

/* ---- ABOUT ---- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 80px;
  align-items: start;
}
.about-aside {
  position: sticky;
  top: 84px;
}
.avatar-block {
  width: 100%;
  aspect-ratio: 1;
  max-width: 260px;
  border-radius: 10px;
  background: var(--paper-3);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.avatar-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--ink-3);
}
.avatar-placeholder svg { opacity: 0.4; }
.avatar-placeholder span {
  font-family: "Space Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.about-name-block { margin-top: 22px; }
.about-name-block .name {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.02em;
}
.about-name-block .role {
  font-family: "Space Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clay);
  margin-top: 5px;
}
.about-contact-links { margin-top: 20px; display: flex; flex-direction: column; gap: 8px; }
.contact-link {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  color: var(--ink-2);
  transition: color 0.15s;
}
.contact-link:hover { color: var(--ink); }
.contact-link svg { flex-shrink: 0; color: var(--ink-3); }

.about-main { display: flex; flex-direction: column; gap: 40px; }
.about-block h2 { font-size: 22px; margin-bottom: 14px; }
.about-block p { color: var(--ink-2); margin-bottom: 14px; line-height: 1.75; }
.values-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 18px;
}
.value-item {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.value-item .k {
  font-family: "Space Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clay);
}
.value-item p { font-size: 14px; color: var(--ink-2); margin-top: 5px; margin-bottom: 0; }

/* ---- CONTACT ---- */
.contact-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 80px;
  align-items: start;
  margin-top: 64px;
}
.contact-intro h1 { margin-bottom: 20px; }
.contact-intro p { color: var(--ink-2); font-size: 17px; line-height: 1.7; max-width: 44ch; }
.contact-cards { display: flex; flex-direction: column; gap: 14px; }
.contact-card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 28px;
  display: flex;
  align-items: center;
  gap: 20px;
  transition: box-shadow 0.2s;
  text-decoration: none;
  color: inherit;
}
.contact-card:hover {
  box-shadow: 0 8px 24px -12px rgba(34,31,26,.18);
}
.contact-card-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius);
  background: var(--clay-soft);
  display: flex; align-items: center; justify-content: center;
  color: var(--clay);
  flex-shrink: 0;
}
.contact-card .label {
  font-family: "Space Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.contact-card .value {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 500;
  font-size: 16px;
  color: var(--ink);
  margin-top: 3px;
}
.contact-card .arrow {
  margin-left: auto;
  color: var(--ink-3);
  flex-shrink: 0;
}

/* ---- EMPTY STATE ---- */
.empty-state {
  padding: 80px 40px;
  text-align: center;
  border: 1px dashed var(--line-2);
  border-radius: 10px;
  color: var(--ink-3);
}
.empty-state p { margin-top: 10px; font-size: 14px; }

/* ---- DIVIDER ---- */
.divider {
  height: 1px;
  background: var(--line);
  margin: 0;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding: 56px 0; }
  .hero-visual { display: none; }
  .hero-content .display { font-size: clamp(38px, 10vw, 56px); }
  .services-grid { grid-template-columns: 1fr; }
  .service-card + .service-card { border-left: none; border-top: 1px solid var(--line); }
  .usecase { grid-template-columns: 1fr; gap: 40px; }
  .cta-strip { padding: 40px 28px; flex-direction: column; align-items: flex-start; }
  .projects-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-aside { position: static; display: flex; gap: 24px; align-items: flex-start; }
  .avatar-block { max-width: 120px; flex-shrink: 0; }
  .contact-layout { grid-template-columns: 1fr; gap: 48px; }
  .values-list { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .section { padding: 64px 0; }
  .nav-links, .lang-switcher { display: none; }
  .nav-toggle { display: flex; }
  .page-hero { padding: 48px 0 40px; }
  .project-meta { grid-template-columns: 1fr; }
  .about-aside { flex-direction: column; }
}