/* ============================================================
   Cocoon API — redesign shared styles
   Dark violet/cyan aesthetic matching reference screenshot.
============================================================ */

:root {
  /* Base surfaces */
  --bg: #0a0718;
  --bg-elev-0: #0f0b24;
  --bg-elev-1: #15112e;
  --bg-elev-2: #1b163a;
  --bg-input: #0a0818;
  --bg-code: #06040f;

  /* Lines */
  --line: rgba(122, 107, 214, 0.14);
  --line-strong: rgba(122, 107, 214, 0.28);

  /* Text */
  --fg: #eceaf7;
  --fg-dim: #a7a3c2;
  --fg-muted: #6a6687;
  --fg-faint: #4a4768;

  /* Brand — violet/magenta → cyan */
  --violet: #a062ff;
  --magenta: #d235ff;
  --blue: #3088ff;
  --cyan: #61d8ff;
  --green: #4ade80;
  --yellow: #fbbf24;
  --red: #f87171;

  --gradient-brand: linear-gradient(290deg, #d235ff 0%, #a062ff 30%, #3088ff 66%, #61d8ff 100%);
  --gradient-btn: linear-gradient(135deg, #a855f7 0%, #7c3aed 50%, #3b82f6 100%);
  --gradient-glow: radial-gradient(circle at 50% 0%, rgba(160, 98, 255, 0.22) 0%, rgba(10, 7, 24, 0) 55%);

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;

  --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.03) inset, 0 0 0 1px var(--line);
  --shadow-glow: 0 0 60px rgba(160, 98, 255, 0.15);
}

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

html { overflow-x: hidden; }
html, body { width: 100%; }
body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  font-size: 14px;
  line-height: 1.55;
  position: relative;
  overflow-x: hidden;
}

/* Ambient glow layer behind everything */
body::before {
  content: "";
  position: fixed;
  inset: -20% -20% auto -20%;
  height: 780px;
  background:
    radial-gradient(ellipse 60% 60% at 70% 12%, rgba(160, 98, 255, 0.18), transparent 60%),
    radial-gradient(ellipse 40% 50% at 18% 30%, rgba(48, 136, 255, 0.10), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

a { color: inherit; text-decoration: none; }

/* =========================== NAV =========================== */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  background: rgba(10, 7, 24, 0.65);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: 1180px; margin: 0 auto;
  display: flex; align-items: center; gap: 28px;
  padding: 14px 28px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 600; font-size: 15px; letter-spacing: -0.01em;
}
.logo-mark {
  width: 22px; height: 22px; flex-shrink: 0;
  position: relative;
  background: linear-gradient(160deg, #c9b8ff 0%, #8a5bff 45%, #4a25a8 100%);
  clip-path: polygon(50% 0%, 100% 35%, 75% 100%, 25% 100%, 0% 35%);
  filter: drop-shadow(0 0 10px rgba(160, 98, 255, 0.55));
}
.logo-mark::after {
  content: "";
  position: absolute; inset: 14% 14% 40% 14%;
  background: linear-gradient(160deg, rgba(255,255,255,0.55), transparent 65%);
  clip-path: polygon(50% 0%, 100% 35%, 75% 100%, 25% 100%, 0% 35%);
}
.nav-links {
  display: flex; gap: 4px; margin-left: 12px;
}
.nav-links a {
  padding: 7px 13px; border-radius: 8px;
  color: var(--fg-dim); font-size: 13.5px;
  transition: color .15s, background .15s;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--fg); background: rgba(160, 98, 255, 0.08);
}
.nav-right {
  margin-left: auto;
  display: flex; align-items: center; gap: 10px;
}
.nav-icon-btn {
  width: 32px; height: 32px; border-radius: 8px;
  display: grid; place-items: center;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  color: var(--fg-dim);
  cursor: pointer;
  transition: border-color .15s, color .15s;
}
.nav-icon-btn:hover { color: var(--fg); border-color: var(--line-strong); }
.nav-lang {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 10px; border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  font-size: 12.5px; color: var(--fg-dim);
  cursor: pointer;
}

/* =========================== CONTAINER =========================== */
.container {
  position: relative; z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px 80px;
  overflow-x: hidden;
}

/* =========================== PILLS & BADGES =========================== */
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  height: 28px; padding: 0 14px;
  border-radius: 999px;
  background: rgba(160, 98, 255, 0.08);
  border: 1px solid rgba(160, 98, 255, 0.22);
  color: #c9b8ff;
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; font-weight: 500;
}
.pill-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--violet); box-shadow: 0 0 8px var(--violet);
}
.pill-live {
  background: rgba(74, 222, 128, 0.06);
  border-color: rgba(74, 222, 128, 0.22);
  color: #86efac;
}
.pill-live .pill-dot { background: #4ade80; box-shadow: 0 0 8px #4ade80; }

.tag {
  display: inline-flex; align-items: center;
  height: 22px; padding: 0 9px;
  border-radius: 6px;
  font-size: 10.5px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(160, 98, 255, 0.12);
  color: #c9b8ff;
}
.tag-ton {
  background: rgba(97, 216, 255, 0.12);
  color: #a7e7ff;
}
.tag-compat {
  background: rgba(48, 136, 255, 0.14);
  color: #a7c7ff;
}

/* =========================== BUTTONS =========================== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  height: 40px; padding: 0 18px;
  border: 0; border-radius: 10px;
  background: var(--gradient-btn);
  color: #fff;
  font: inherit; font-weight: 600; font-size: 13.5px;
  cursor: pointer;
  position: relative;
  transition: transform .1s, filter .15s;
  box-shadow: 0 6px 20px -8px rgba(124, 58, 237, 0.55),
              inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.btn:hover { filter: brightness(1.08); }
.btn:active { transform: translateY(1px); }

.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line-strong);
  box-shadow: none;
  color: var(--fg);
}
.btn-ghost:hover {
  background: rgba(160, 98, 255, 0.06);
  border-color: rgba(160, 98, 255, 0.4);
}

.btn-sm { height: 32px; padding: 0 13px; font-size: 12.5px; border-radius: 8px; }
.btn-lg { height: 46px; padding: 0 22px; font-size: 14px; border-radius: 12px; }

.btn-icon {
  display: inline-grid; place-items: center;
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--gradient-btn);
  border: 0; color: #fff; cursor: pointer;
  box-shadow: 0 6px 20px -8px rgba(124, 58, 237, 0.55),
              inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

/* =========================== CARDS =========================== */
.card {
  background:
    linear-gradient(180deg, rgba(160, 98, 255, 0.03) 0%, rgba(255, 255, 255, 0) 40%),
    var(--bg-elev-1);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  position: relative;
}
.card-pad { padding: 20px 22px; }

.card-soft {
  background: var(--bg-elev-0);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

/* Section label — SECTION TITLE — */
.section-label {
  display: flex; align-items: center; gap: 10px;
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--fg-muted); font-weight: 600;
  margin: 36px 0 14px;
}
.section-label .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
}

/* =========================== MONOSPACE =========================== */
code, .mono {
  font-family: "JetBrains Mono", "SF Mono", "Fira Code", ui-monospace, monospace;
  font-feature-settings: "ss02";
}

/* =========================== FORM CONTROLS =========================== */
.input {
  width: 100%;
  height: 40px; padding: 0 14px;
  background: var(--bg-input);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--fg);
  font: inherit; font-size: 13.5px;
  transition: border-color .15s, box-shadow .15s;
}
.input:focus { outline: none; border-color: rgba(160, 98, 255, 0.55); box-shadow: 0 0 0 3px rgba(160, 98, 255, 0.1); }
.input::placeholder { color: var(--fg-faint); }

.select {
  height: 36px; padding: 0 30px 0 12px;
  background: var(--bg-input);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--fg);
  font: inherit; font-size: 13px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%236a6687' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  cursor: pointer;
}

/* =========================== GRADIENT TEXT =========================== */
.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* =========================== ICON TILE =========================== */
.icon-tile {
  width: 40px; height: 40px; border-radius: 10px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(160, 98, 255, 0.22), rgba(48, 136, 255, 0.14));
  border: 1px solid rgba(160, 98, 255, 0.3);
  color: #c9b8ff;
  flex-shrink: 0;
}
.icon-tile-cyan {
  background: linear-gradient(135deg, rgba(97, 216, 255, 0.2), rgba(48, 136, 255, 0.14));
  border-color: rgba(97, 216, 255, 0.32);
  color: #a7e7ff;
}
.icon-tile-ton {
  background: linear-gradient(135deg, rgba(48, 136, 255, 0.22), rgba(97, 216, 255, 0.14));
  border-color: rgba(48, 136, 255, 0.38);
  color: #a7c7ff;
}

/* =========================== FOOTER =========================== */
.footer {
  position: relative; z-index: 1;
  border-top: 1px solid var(--line);
  padding: 28px;
}
.footer-inner {
  max-width: 1180px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; font-size: 12.5px; color: var(--fg-muted);
}
.footer a { color: var(--fg-dim); }
.footer a:hover { color: var(--fg); }
.footer-dots { display: flex; gap: 18px; }

/* =========================== UTILITY =========================== */
.text-dim { color: var(--fg-dim); }
.text-muted { color: var(--fg-muted); }
.text-faint { color: var(--fg-faint); }
.text-green { color: var(--green); }
.text-yellow { color: var(--yellow); }
.text-red { color: var(--red); }
.text-violet { color: #c9b8ff; }
.text-cyan { color: #a7e7ff; }

.mono-num {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-feature-settings: "tnum", "ss02";
}

.divider {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--line-strong), transparent);
  margin: 28px 0;
}

.scroll-y { overflow-y: auto; }
.scroll-y::-webkit-scrollbar { width: 6px; }
.scroll-y::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 3px; }
.scroll-y::-webkit-scrollbar-track { background: transparent; }

/* think blocks — reused across pages */
details.think-block {
  background: rgba(160, 98, 255, 0.05);
  border: 1px solid rgba(160, 98, 255, 0.15);
  border-radius: 8px;
  margin: 6px 0;
  overflow: hidden;
}
details.think-block summary {
  padding: 6px 12px;
  font-size: 12px; color: var(--fg-muted); font-style: italic;
  cursor: pointer; user-select: none;
  list-style: none;
}
details.think-block summary::-webkit-details-marker { display: none; }
details.think-block summary::before {
  content: "▶ "; font-size: 9px; margin-right: 4px;
  display: inline-block; transition: transform .15s;
}
details.think-block[open] summary::before { transform: rotate(90deg); }
details.think-block .think-content {
  padding: 4px 12px 10px;
  font-size: 12.5px; line-height: 1.5;
  color: var(--fg-dim);
  border-top: 1px solid rgba(160, 98, 255, 0.08);
  white-space: pre-wrap;
}

/* =========================== RESPONSIVE =========================== */

/* ---- TABLET (≤ 960px) ---- */
@media (max-width: 960px) {
  .nav-inner {
    padding: 12px 18px;
    gap: 16px;
  }
  .nav-links {
    margin-left: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    flex: 1;
    min-width: 0;
  }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-links a {
    padding: 6px 10px;
    white-space: nowrap;
    flex-shrink: 0;
  }
  .nav-right { gap: 8px; }
  .nav-lang { display: none; }

  .container {
    padding: 0 18px 60px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 18px;
    gap: 12px;
  }
  .footer-inner .footer-dots {
    flex-wrap: wrap;
    gap: 12px 18px;
  }
}

/* ---- PHONE (≤ 640px) ---- */
@media (max-width: 640px) {
  .nav-inner {
    padding: 10px 14px;
    gap: 10px;
  }
  .logo { font-size: 14px; }
  .logo-mark { width: 20px; height: 20px; }
  .nav-links a { font-size: 13px; padding: 5px 9px; }
  .nav-icon-btn { width: 30px; height: 30px; }
  /* Hide less-critical nav icons on very small screens */
  .nav-right .nav-icon-btn:not(:last-child) { display: none; }

  .container {
    padding: 0 14px 48px;
  }

  /* Buttons and pills scale down slightly */
  .btn { font-size: 13px; }
  .btn-lg { padding: 12px 18px; font-size: 14px; }

  /* Dividers tighter */
  .divider { margin: 20px 0; }

  .footer { padding: 20px 14px; }
  .footer-inner { font-size: 11.5px; }
}

/* Generic grid collapse helpers available to any page */
@media (max-width: 960px) {
  .grid-2,
  .grid-3,
  .grid-4 { grid-template-columns: 1fr 1fr !important; }
}
@media (max-width: 640px) {
  .grid-2,
  .grid-3,
  .grid-4 { grid-template-columns: 1fr !important; }
}