/* ============================================================
   AGENTIC ATELIER — landing styles
   palette: light editorial · soft blues + gray + gold accent
   ============================================================ */

:root {
  --bg:         #f4f6fa;    /* light cool background */
  --bg-elev:    #ffffff;    /* card / elevated surface */
  --surface:    #eaeef5;    /* subtle surface */
  --deep:       #0d2340;    /* deep navy for headings */
  --deep-soft:  #1a3358;
  --blue:       #5b8dc5;    /* light/medium blue */
  --blue-hi:    #7aa8dc;
  --blue-soft:  #c9d9ec;
  --border:     #d6deea;
  --border-soft:#e3e9f1;
  --text:       #0f1c30;    /* near-deep for body */
  --text-dim:   #475571;    /* secondary copy — bumped contrast */
  --text-mute:  #6f7d96;    /* meta / tertiary — bumped from #92a0b8 */
  --accent:     #c8a24a;    /* gold — restrained */
  --accent-hi:  #d8b461;
  --accent-dim: #a4853a;
  --success:    #4b9d7c;

  --serif: 'Cormorant Garamond', 'EB Garamond', 'Georgia', serif;
  --sans:  'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono:  'JetBrains Mono', 'IBM Plex Mono', ui-monospace, monospace;

  --maxw: 1180px;
  --pad-x: clamp(20px, 4vw, 48px);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
@media (max-width: 540px) {
  body { font-size: 16px; line-height: 1.6; }
}

/* subtle blue glow at top */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 1200px 600px at 50% -200px, rgba(91, 141, 197, 0.18), transparent 60%),
    radial-gradient(ellipse 800px 400px at 100% 0%, rgba(200, 162, 74, 0.06), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* ============================================================
   nav
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(244, 246, 250, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-soft);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px var(--pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--text);
  text-decoration: none;
}
.brand svg { width: 340px; height: 68px; color: var(--text); }
@media (max-width: 720px) { .brand svg { width: 240px; height: 48px; } }
@media (max-width: 480px) { .brand svg { width: 200px; height: 40px; } }
.nav-inner { padding: 18px var(--pad-x); }
.brand svg { color: var(--deep); }
.brand:hover svg { color: var(--blue); }
.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.5px;
}
.lang-toggle {
  display: flex;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 3px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.5px;
}
.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  padding: 4px 10px;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  letter-spacing: inherit;
  border-radius: 2px;
  transition: all 0.15s;
}
.lang-btn:hover { color: var(--text); }
.lang-btn.active {
  background: var(--accent);
  color: var(--deep);
  font-weight: 600;
}

/* ============================================================
   hero
   ============================================================ */
.hero {
  position: relative;
  z-index: 1;
  padding: clamp(80px, 12vw, 160px) var(--pad-x) clamp(60px, 10vw, 120px);
  max-width: var(--maxw);
  margin: 0 auto;
}
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 4px;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 28px;
  opacity: 0.9;
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(40px, 6.4vw, 88px);
  line-height: 1.06;
  letter-spacing: -1.5px;
  margin: 0 0 28px;
  color: var(--deep);
  max-width: 18ch;
}
.hero h1 em {
  font-style: italic;
  color: var(--blue);
  position: relative;
}
.hero h1 em::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  bottom: 0.08em;
  height: 0.12em;
  background: var(--accent);
  opacity: 0.65;
  z-index: -1;
}
.hero .sub {
  font-size: clamp(17px, 2vw, 22px);
  color: var(--text-dim);
  max-width: 60ch;
  line-height: 1.5;
  margin: 0 0 40px;
  font-weight: 400;
}
.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 2px;
  transition: all 0.2s;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--deep);
  color: #ffffff;
  font-weight: 600;
  border-color: var(--deep);
}
.btn-primary:hover {
  background: var(--deep-soft);
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px -8px rgba(13, 35, 64, 0.45);
}
.btn-ghost {
  background: transparent;
  color: var(--deep);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-dim); background: rgba(200,162,74,0.06); }

/* ============================================================
   sections
   ============================================================ */
.section {
  position: relative;
  z-index: 1;
  padding: clamp(60px, 10vw, 120px) var(--pad-x);
  max-width: var(--maxw);
  margin: 0 auto;
}
.section.alt {
  background: var(--bg-elev);
  max-width: none;
  margin: 0;
  border-block: 1px solid var(--border-soft);
}
.section.alt .section-inner {
  max-width: var(--maxw);
  margin: 0 auto;
}

.section-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 20px;
}
.section h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(32px, 4.2vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.8px;
  margin: 0 0 24px;
  max-width: 22ch;
  color: var(--deep);
}
.section .lede {
  font-size: clamp(17px, 1.7vw, 20px);
  color: var(--text-dim);
  max-width: 62ch;
  margin: 0 0 64px;
  line-height: 1.65;
}

/* ============================================================
   manifesto: 3 colunas
   ============================================================ */
.manifesto-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  background: var(--border-soft);
  border: 1px solid var(--border-soft);
}
.manifesto-card {
  background: var(--bg-elev);
  padding: clamp(28px, 4vw, 48px);
  transition: background 0.25s;
}
.manifesto-card:hover { background: var(--surface); }
.manifesto-card .num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 2px;
  margin-bottom: 18px;
}
.manifesto-card h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 28px;
  letter-spacing: 0.5px;
  margin: 0 0 16px;
  color: var(--deep);
}
.manifesto-card p {
  color: var(--text-dim);
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
}

/* ============================================================
   specialists grid
   ============================================================ */
.specialists-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  margin-top: 40px;
}
.specialist-card {
  background: var(--bg-elev);
  border: 1px solid var(--border-soft);
  padding: 22px 24px;
  border-radius: 4px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.specialist-card:hover {
  border-color: var(--blue);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -16px rgba(91, 141, 197, 0.45);
}
.specialist-card .icon { font-size: 22px; margin-bottom: 8px; display: block; }
.specialist-card h4 {
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.3px;
  margin: 0 0 10px;
  color: var(--deep);
}
.specialist-card p {
  margin: 0 0 12px;
  font-size: 14.5px;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ============================================================
   coverage strip
   ============================================================ */
.coverage {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px 28px;
  margin-top: 8px;
}
.source {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 1.5px;
  color: var(--deep-soft);
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  transition: all 0.2s;
  font-weight: 500;
}
.source:hover {
  color: var(--deep);
  border-color: var(--blue);
  background: #ffffff;
  transform: translateY(-1px);
}
@media (max-width: 540px) {
  .coverage { gap: 10px 12px; }
  .source { font-size: 11.5px; padding: 6px 11px; letter-spacing: 1.2px; }
}
.coverage-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px 56px;
  margin-top: 56px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--text-dim);
  text-align: center;
}
.coverage-meta strong {
  color: var(--deep);
  font-weight: 400;
  font-size: 28px;
  display: block;
  margin-bottom: 6px;
  font-family: var(--serif);
  letter-spacing: 0;
}

/* ============================================================
   use cases
   ============================================================ */
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 32px;
}
.usecase-card {
  background: var(--bg-elev);
  border: 1px solid var(--border-soft);
  border-radius: 4px;
  padding: 32px 28px;
  position: relative;
  overflow: hidden;
}
.usecase-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 30px; height: 1px;
  background: var(--accent);
}
.usecase-card .label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 16px;
  text-transform: uppercase;
}
.usecase-card h4 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 22px;
  margin: 0 0 12px;
  color: var(--deep);
  line-height: 1.3;
}
.usecase-card p {
  color: var(--text-dim);
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.65;
}
.usecase-card code {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  background: var(--surface);
  padding: 2px 6px;
  border-radius: 2px;
  border: 1px solid var(--border-soft);
}

/* ============================================================
   custom-build section
   ============================================================ */
.custom-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 40px;
}
.custom-card {
  background: var(--bg-elev);
  border: 1px solid var(--border-soft);
  padding: 24px 26px;
  border-radius: 4px;
  transition: border-color 0.2s, transform 0.2s;
  position: relative;
}
.custom-card:hover {
  border-color: var(--blue);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -16px rgba(91, 141, 197, 0.4);
}
.custom-card .num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 2px;
  display: block;
  margin-bottom: 12px;
}
.custom-card h4 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 22px;
  letter-spacing: 0.3px;
  margin: 0 0 10px;
  color: var(--deep);
  line-height: 1.25;
}
.custom-card p {
  margin: 0;
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.65;
}

/* ============================================================
   stack section
   ============================================================ */
.stack-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px 60px;
  align-items: start;
}
@media (max-width: 820px) { .stack-grid { grid-template-columns: 1fr; gap: 0; } }

.stack-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.stack-list li {
  padding: 18px 0;
  border-bottom: 1px solid var(--border-soft);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
}
.stack-list li:last-child { border-bottom: none; }
.stack-list .label {
  font-family: var(--serif);
  font-size: 20px;
  color: var(--deep);
}
.stack-list .value {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--accent-dim);
  letter-spacing: 1px;
  text-align: right;
}

/* ============================================================
   contact + form
   ============================================================ */
.contact {
  text-align: center;
  padding: clamp(80px, 12vw, 140px) var(--pad-x);
}
.contact h2 {
  margin-left: auto;
  margin-right: auto;
  max-width: 18ch;
}
.contact .lede {
  margin-left: auto;
  margin-right: auto;
  max-width: 50ch;
  text-align: center;
}

.contact-form {
  max-width: 640px;
  margin: 0 auto;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: relative;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; gap: 18px; }
}
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 500;
}
.contact-form input,
.contact-form textarea {
  font-family: var(--sans);
  font-size: 16px;
  color: var(--text);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 12px 14px;
  line-height: 1.5;
  width: 100%;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--text-mute);
  opacity: 1;
}
.contact-form input:hover,
.contact-form textarea:hover { border-color: var(--blue-soft); }
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(91, 141, 197, 0.18);
  background: #ffffff;
}
.contact-form textarea { resize: vertical; min-height: 120px; }
.contact-form input[aria-invalid="true"],
.contact-form textarea[aria-invalid="true"] {
  border-color: #c25555;
  box-shadow: 0 0 0 3px rgba(194, 85, 85, 0.12);
}
.form-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 4px;
  flex-wrap: wrap;
}
.btn-primary { position: relative; }
.btn-spinner {
  display: none;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
.btn-primary[data-loading="true"] .btn-spinner { display: inline-block; }
.btn-primary[data-loading="true"] { pointer-events: none; opacity: 0.85; }
@keyframes spin { to { transform: rotate(360deg); } }
.form-status {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.5px;
  color: var(--text-dim);
}
.form-status[data-state="ok"] { color: var(--success); }
.form-status[data-state="err"] { color: #c25555; }
.form-privacy {
  margin: 4px 0 0;
  font-size: 12.5px;
  color: var(--text-mute);
  text-align: left;
  line-height: 1.55;
}

/* ============================================================
   footer
   ============================================================ */
footer {
  border-top: 1px solid var(--border-soft);
  padding: 36px var(--pad-x);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--text-mute);
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-center {
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 2px;
}

/* ============================================================
   utilities + animations
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 720px) {
  .footer-inner { justify-content: center; text-align: center; }
  .nav-inner { gap: 12px; }
  .nav-right { gap: 10px; }
  .hero { padding-top: clamp(60px, 14vw, 120px); padding-bottom: 60px; }
  .hero h1 { letter-spacing: -1px; }
  .coverage-meta { gap: 24px; font-size: 10.5px; }
  .coverage-meta strong { font-size: 24px; }
  .manifesto-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: clamp(36px, 11vw, 56px); max-width: 14ch; }
  .section h2 { font-size: clamp(28px, 8vw, 40px); }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { justify-content: center; }
}

/* selection */
::selection { background: var(--accent); color: var(--deep); }