/* Astra Harness — official site stylesheet.
   Visual system aligned with the Socrates site: pure-black surfaces,
   opacity-tinted neutral text, thin hairline borders, small radii,
   Geist + Geist Mono, local SVG icons. No gradients, no blue-purple,
   no emoji. */

@import url("https://fonts.googleapis.com/css2?family=Geist:wght@400;500;600;700&family=Geist+Mono:wght@400;500&family=Noto+Sans+SC:wght@400;500;600;700&display=swap");

:root {
  --bg:            #000000;
  --surface:       #0a0a0a;
  --surface-2:     #101010;
  --line:          rgba(255, 255, 255, .08);
  --line-soft:     rgba(255, 255, 255, .05);
  --line-strong:   rgba(255, 255, 255, .18);

  --text:          #ffffff;
  --text-90:       rgba(255, 255, 255, .90);
  --text-70:       rgba(255, 255, 255, .70);
  --text-60:       rgba(255, 255, 255, .60);
  --text-50:       rgba(255, 255, 255, .50);
  --text-40:       rgba(255, 255, 255, .40);
  --text-30:       rgba(255, 255, 255, .30);

  --accent:        #f97316;
  --accent-soft:   rgba(249, 115, 22, .14);
  --ok:            #86c46b;
  --ok-soft:       rgba(134, 196, 107, .12);
  --err:           #f87171;
  --err-soft:      rgba(248, 113, 113, .10);

  --radius-lg:     20px;
  --radius-md:     16px;
  --radius-sm:     12px;
  --radius-chip:   8px;
  --radius-pill:   999px;
  --ease:          cubic-bezier(.16, 1, .3, 1);
  --max:           1180px;
  --pad:           clamp(20px, 4vw, 56px);

  --font-sans:     "Geist", "Inter", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --font-mono:     "Geist Mono", "JetBrains Mono", "Cascadia Code", "SFMono-Regular", Consolas, ui-monospace, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -.011em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
body ::selection { background: var(--accent); color: #000; }
body a { color: inherit; text-decoration: none; transition: color .15s var(--ease), background .15s var(--ease), border-color .15s var(--ease); }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

.shell { width: min(1080px, calc(100% - var(--pad) * 2)); margin: 0 auto; }
.shell-wide { width: min(var(--max), calc(100% - var(--pad) * 2)); margin: 0 auto; }

/* ---- skip link ---- */
.skip-link {
  position: fixed; top: 10px; left: 10px; z-index: 100;
  padding: 8px 14px;
  background: #fff; color: #000;
  border-radius: var(--radius-pill);
  font-size: 13px;
  transform: translateY(-160%);
  transition: transform .2s var(--ease);
}
.skip-link:focus { transform: translateY(0); }

/* ---- header / nav ---- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(0, 0, 0, .82);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px) saturate(150%);
  -webkit-backdrop-filter: blur(12px) saturate(150%);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 64px;
}
.brand {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 15px; font-weight: 500; letter-spacing: -.02em;
  white-space: nowrap;
}
.brand-mark {
  width: 24px; height: 24px;
  display: inline-flex; align-items: center; justify-content: center;
  background: #fff; color: #000;
  border-radius: 7px;
  font-size: 13px; font-weight: 600;
}
.nav { display: flex; align-items: center; gap: 2px; margin-left: auto; margin-right: 18px; }
.nav a {
  padding: 8px 12px;
  color: var(--text-50);
  font-size: 13px; font-weight: 500;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}
.nav a:hover, .nav a:focus-visible { color: var(--text); background: rgba(255, 255, 255, .04); }
.nav a[aria-current="page"] { color: var(--text); }
.nav-cta { display: flex; align-items: center; gap: 8px; }

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 40px;
  padding: 9px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: 13px; font-weight: 600;
  letter-spacing: -.01em;
  white-space: nowrap;
  cursor: pointer;
  transition: background .15s var(--ease), color .15s var(--ease), border-color .15s var(--ease);
}
.btn-primary { background: #fff; color: #000; }
.btn-primary:hover { background: #e8e8e8; color: #000; }
.btn-quiet { background: transparent; color: var(--text-90); border-color: var(--line-strong); }
.btn-quiet:hover { background: rgba(255, 255, 255, .04); border-color: rgba(255, 255, 255, .3); }
.btn-danger { background: transparent; color: var(--err); border-color: rgba(248, 113, 113, .32); }
.btn-danger:hover { background: var(--err-soft); border-color: var(--err); }
.btn-block { width: 100%; }
.btn-link { background: transparent; border: 0; color: var(--text-50); padding: 0; min-height: 0; font-size: 13px; }
.btn-link:hover { color: var(--text); }

/* ---- hero ---- */
.hero { padding: clamp(72px, 10vw, 128px) 0 clamp(48px, 7vw, 88px); }
.hero-kicker {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 500; letter-spacing: .12em; text-transform: uppercase;
  color: var(--text-40);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--surface);
  margin-bottom: 30px;
}
.hero-kicker .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.hero h1 {
  margin: 0 0 24px;
  max-width: 17ch;
  font-size: clamp(42px, 6.2vw, 78px);
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: -.04em;
  color: var(--text);
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p.lede {
  margin: 0 0 32px;
  max-width: 62ch;
  color: var(--text-60);
  font-size: 17px;
  line-height: 1.65;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-note { margin-top: 18px; color: var(--text-30); font-size: 13px; }

/* ---- sections ---- */
.section { padding: clamp(56px, 7vw, 96px) 0; border-top: 1px solid var(--line); }
.section h2 {
  margin: 0 0 12px;
  max-width: 24ch;
  font-size: clamp(28px, 3.4vw, 38px);
  font-weight: 500;
  letter-spacing: -.03em;
  line-height: 1.14;
  color: var(--text);
}
.section .kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 500; letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent);
}
.section .lede { margin: 0 0 36px; max-width: 58ch; color: var(--text-60); font-size: 16px; line-height: 1.65; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }

.card {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.card:hover { border-color: var(--line-strong); background: var(--surface-2); }
.card .ico {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--text-70);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  margin-bottom: 18px;
}
.card .ico svg { width: 20px; height: 20px; }
.card h3 { margin: 0 0 8px; font-size: 15px; font-weight: 600; color: var(--text); letter-spacing: -.01em; }
.card p { margin: 0; color: var(--text-50); font-size: 14px; line-height: 1.6; }

/* ---- cli snippet ---- */
.cli {
  margin-top: clamp(40px, 5vw, 64px);
  padding: 24px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
  overflow-x: auto;
}
.cli .label {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--text-30);
  font-size: 10px; text-transform: uppercase; letter-spacing: .14em;
}
.cli .prompt { color: var(--accent); }
.cli .cmd {
  color: var(--text);
  overflow-wrap: anywhere;
  word-break: break-word;
}
.cli .out { color: var(--text-40); }
.cli .out-ok { color: var(--ok); }

/* copyable one-line command (install cards) */
.cmd-line {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.cmd-line .prompt { flex: none; padding-top: 1px; }
.cmd-line .cmd { flex: 1 1 auto; min-width: 0; }
.copy-btn {
  flex: none;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 4px;
  padding: 5px 9px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  color: var(--text-50);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .01em;
  cursor: pointer;
  transition: color .15s var(--ease), background .15s var(--ease), border-color .15s var(--ease);
}
.copy-btn:hover { color: var(--text); border-color: var(--line-strong); background: rgba(255, 255, 255, .04); }
.copy-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.copy-btn.copied { color: var(--ok); border-color: rgba(134, 196, 107, .4); }
.copy-btn svg { width: 13px; height: 13px; }
.copy-btn .copy-label { white-space: nowrap; }

.install-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.install-card {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}
.install-card h3 {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -.01em;
}
.install-card .cli {
  margin-top: 0;
  padding: 16px;
  font-size: 12.5px;
}
.install-note { margin: 18px 0 0; color: var(--text-40); font-size: 14px; line-height: 1.6; }
.install-note code {
  font-family: var(--font-mono);
  color: var(--text-80);
  font-size: 13px;
}

/* ---- protocol strip ---- */
.protocol {
  margin-top: clamp(48px, 6vw, 80px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.protocol .item { padding: 18px 0; border-top: 1px solid var(--line); }
.protocol .item .k {
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--text-30);
}
.protocol .item .v { font-size: 14.5px; font-weight: 500; letter-spacing: -.01em; color: var(--text-90); }

/* ---- footer ---- */
.site-footer { border-top: 1px solid var(--line); padding: 56px 0 40px; }
.footer-grid {
  display: grid;
  grid-template-columns: minmax(220px, 1.4fr) repeat(3, 1fr);
  gap: 28px;
}
.footer-brand p { margin: 12px 0 0; color: var(--text-40); font-size: 13px; max-width: 30ch; }
.footer-col h2 {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 10px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase;
  color: var(--text-30);
}
.footer-col a { display: block; padding: 5px 0; color: var(--text-50); font-size: 13px; }
.footer-col a:hover { color: var(--text); }
.footer-bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line-soft);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px;
  color: var(--text-30); font-size: 12px;
}

/* ---- auth pages (login / authorize) ---- */
.auth-wrap { max-width: 460px; margin: 0 auto; padding: clamp(48px, 7vw, 96px) 24px clamp(64px, 9vw, 120px); }
.auth-card {
  padding: 36px 36px 32px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.auth-card .auth-ico {
  width: 46px; height: 46px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--accent);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  margin-bottom: 20px;
}
.auth-card .auth-ico svg { width: 22px; height: 22px; }
.auth-card h1 {
  margin: 0 0 8px;
  font-size: 26px; font-weight: 600; letter-spacing: -.025em;
  line-height: 1.2;
  color: var(--text);
}
.auth-card .sub { margin: 0 0 26px; color: var(--text-50); font-size: 14.5px; line-height: 1.6; }

.tabs {
  display: flex; gap: 4px;
  padding: 4px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  margin-bottom: 24px;
}
.tab {
  flex: 1; text-align: center;
  padding: 8px 0;
  border-radius: 9px;
  font-size: 13.5px; font-weight: 500;
  color: var(--text-50);
  cursor: pointer;
  transition: color .15s var(--ease), background .15s var(--ease);
}
.tab.active { background: #fff; color: #000; }
.tab:hover { color: var(--text); }
.tab.active:hover { color: #000; }

.field { display: grid; gap: 6px; margin-bottom: 16px; }
.field label {
  font-size: 12px; font-weight: 500;
  letter-spacing: .04em; text-transform: uppercase;
  color: var(--text-40);
}
.field input {
  width: 100%;
  padding: 12px 14px;
  color: var(--text);
  background: #000;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 15px;
  letter-spacing: -.01em;
  outline: 0;
  transition: border-color .15s var(--ease), box-shadow .15s var(--ease);
}
.field input::placeholder { color: var(--text-30); }
.field input:focus { border-color: var(--line-strong); box-shadow: 0 0 0 3px rgba(255, 255, 255, .06); }
.field .hint { margin: 0; color: var(--text-30); font-size: 12.5px; }
.field-row { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.field-row a { font-size: 12.5px; color: var(--text-40); }
.field-row a:hover { color: var(--text); }

.msg { display: none; padding: 12px 16px; border-radius: var(--radius-sm); font-size: 13.5px; line-height: 1.55; margin-bottom: 18px; }
.msg.show { display: block; }
.msg.err { color: #fca5a5; background: var(--err-soft); border: 1px solid rgba(248, 113, 113, .3); }
.msg.ok { color: #a9d891; background: var(--ok-soft); border: 1px solid rgba(134, 196, 107, .3); }
.msg.info { color: var(--text-70); background: var(--surface-2); border: 1px solid var(--line); }
.msg.info strong { color: var(--text); }

.auth-foot { margin-top: 18px; text-align: center; color: var(--text-30); font-size: 13px; }
.auth-foot a { color: var(--text-70); }
.auth-foot a:hover { color: var(--text); }

/* ---- authorize page ---- */
.code-box { display: flex; flex-direction: column; align-items: center; padding: 8px 0 4px; }
.code-uri-note { margin: 0 0 10px; color: var(--text-40); font-size: 13px; text-align: center; }
.code-uri {
  width: 100%;
  margin-bottom: 14px;
  padding: 8px 10px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-50);
  word-break: break-all;
  background: #000;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.code-chip {
  width: 100%;
  margin: 6px 0 4px;
  padding: 18px 24px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 500;
  letter-spacing: .2em;
  color: var(--text);
  background: #000;
  border: 1.5px dashed var(--line-strong);
  border-radius: 14px;
}
.code-chip.is-ok { border-style: solid; border-color: var(--ok); color: var(--ok); }
.code-chip-input {
  width: 100%;
  margin: 6px 0 4px;
  padding: 14px 16px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: .14em;
  color: var(--text);
  background: #000;
  border: 1px solid var(--line);
  border-radius: 12px;
  outline: 0;
}
.code-chip-input:focus { border-color: var(--line-strong); box-shadow: 0 0 0 3px rgba(255, 255, 255, .06); }

.session-row {
  display: none;
  align-items: center; gap: 10px;
  margin-bottom: 18px;
  padding: 10px 14px;
  background: #000;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  color: var(--text-50);
}
.session-row.show { display: flex; }
.avatar {
  width: 28px; height: 28px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--surface-2);
  border: 1px solid var(--line);
  color: var(--text-70);
  font-weight: 600; font-size: 13px;
}

/* ---- account page ---- */
.app-wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: clamp(40px, 6vw, 72px) 24px clamp(64px, 9vw, 120px);
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 28px;
}
.app-side { position: sticky; top: 88px; align-self: start; }
.app-side .kicker { margin: 0 0 14px; font-family: var(--font-mono); font-size: 10px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase; color: var(--text-30); }
.app-side nav { display: grid; gap: 2px; }
.app-side nav a {
  display: flex; align-items: baseline; gap: 10px;
  padding: 8px 12px;
  border-radius: 10px;
  color: var(--text-50);
  font-size: 13.5px;
}
.app-side nav a span { font-family: var(--font-mono); font-size: 10px; color: var(--text-30); }
.app-side nav a:hover { color: var(--text); background: rgba(255, 255, 255, .04); }
.app-side nav a.is-current { color: var(--text); background: rgba(255, 255, 255, .06); }
.app-side .note { margin: 22px 0 0; color: var(--text-30); font-size: 12.5px; line-height: 1.6; }
.app-side .note a { color: var(--text-50); }
.app-side .note a:hover { color: var(--text); }

.acct-card {
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
}
.acct-card h1 { margin: 0 0 8px; font-size: 26px; font-weight: 600; letter-spacing: -.025em; }
.acct-card > .sub { margin: 0 0 26px; color: var(--text-50); font-size: 14.5px; }
.acct-meta { display: flex; align-items: center; gap: 14px; margin-bottom: 26px; }
.acct-meta .avatar { width: 46px; height: 46px; font-size: 17px; }
.acct-meta .email { font-size: 16.5px; font-weight: 600; color: var(--text); letter-spacing: -.01em; }
.acct-meta .since { margin-top: 2px; color: var(--text-30); font-size: 12.5px; }
.acct-meta .editable { cursor: text; }
.acct-meta .editable:hover { color: var(--accent); }
.acct-meta .name-input { font-size: 16.5px; font-weight: 600; padding: 6px 10px; max-width: 280px; }

.section-title { margin: 0 0 10px; font-family: var(--font-mono); font-size: 10px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase; color: var(--text-30); }
.section-help { margin: 0 0 16px; color: var(--text-40); font-size: 13px; line-height: 1.55; }

.token-list { margin: 0; padding: 0; list-style: none; }
.token-list li {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 14px 16px;
  margin-bottom: 8px;
  background: #000;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 13.5px;
}
.token-list .tok { font-family: var(--font-mono); font-size: 12px; color: var(--text-50); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.token-list .lbl { margin-top: 3px; color: var(--text-30); font-size: 12px; }
.token-list .left { min-width: 0; }
.token-list .muted { color: var(--text-40); font-size: 13.5px; }

.divider { height: 1px; background: var(--line); margin: 26px 0; }
.actions-row { display: flex; gap: 10px; flex-wrap: wrap; }

@media (max-width: 860px) {
  .nav { display: none; }
  .header-inner { min-height: 60px; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .install-grid { grid-template-columns: 1fr; }
  .protocol { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .app-wrap { grid-template-columns: 1fr; }
  .app-side { position: static; }
  .hero h1 { font-size: 42px; }
}