/* Sam unified shell. Single source of truth for chrome.
   Per-page <style> blocks must come AFTER this file in the document so they
   can override page-specific bits without redefining the variables. */

:root {
  --bg: #fbfaf7;
  --ink: #1a1a1a;
  --muted: #6b6b6b;
  --rule: #e5e1d8;
  --accent: #2c5f6a;
  --bad: #a04040;
  --good: #2f7d52;
  --paper: #ffffff;
  --focus-bg: #f3efe6;
  --shell-max: 1080px;
  --shell-pad-x: 32px;
  --header-pad-y: 18px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 17px;
  line-height: 1.55;
  min-height: 100%;
}

body {
  display: flex;
  flex-direction: column;
}

a { color: var(--accent); }

h1 { font-size: 32px; font-weight: 700; letter-spacing: -0.01em; margin: 0; }
h2 { font-size: 22px; font-weight: 700; letter-spacing: -0.005em; margin: 0; }
h3 { font-size: 18px; font-weight: 700; letter-spacing: -0.005em; margin: 0; }

/* ===== Header / nav =============================================== */

.sam-shell-header {
  border-bottom: 1px solid var(--rule);
  background: var(--bg);
  position: relative;
}

.sam-shell-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px var(--shell-pad-x) 14px;
  border-bottom: 1px solid var(--rule);
}

.sam-shell-nav .sam-mark {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 22px;
  font-weight: 700;
  font-style: italic;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
  text-transform: lowercase;
}

.sam-shell-nav .sam-mark::after {
  content: "."; color: var(--accent); margin-left: 1px;
}

.sam-shell-links {
  display: flex;
  gap: 18px;
  align-items: center;
  flex-wrap: wrap;
}

.sam-shell-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: color 120ms ease, border-color 120ms ease;
}

.sam-shell-links a:hover {
  color: var(--accent);
  border-bottom-color: var(--rule);
}

.sam-shell-links a.active,
.sam-shell-links a[aria-current="page"] {
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
}

.sam-shell-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-right: 18px;
}
.sam-shell-icon {
  background: transparent;
  border: 1px solid var(--rule);
  color: var(--muted);
  font-family: inherit;
  font-size: 13px;
  letter-spacing: 0.04em;
  padding: 6px 12px;
  cursor: pointer;
  white-space: nowrap;
}
.sam-shell-icon:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.sam-shell-share { color: var(--accent); border-color: var(--accent); }
.sam-shell-share:hover { background: var(--accent); color: white; }

.sam-shell-burger {
  display: none;
  background: transparent;
  border: 1px solid var(--rule);
  padding: 6px 10px;
  cursor: pointer;
  font-family: inherit;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ===== View-as (admin impersonation) ============================== */

.sam-shell-viewas {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: 12px;
  margin-right: 12px;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.sam-shell-viewas-caption {
  font-size: 11px;
  letter-spacing: 0.08em;
}
.sam-shell-viewas-select {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 13px;
  letter-spacing: normal;
  text-transform: none;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 4px 8px;
  cursor: pointer;
  max-width: 220px;
}
.sam-shell-viewas-select:focus { outline: none; border-color: var(--accent); }

.sam-viewas-banner {
  background: #faf3e8;
  border-top: 2px solid #b87f33;
  border-bottom: 1px solid #e6d5b9;
  color: #5c4321;
  font-size: 14px;
  padding: 10px var(--shell-pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  position: sticky;
  top: 0;
  z-index: 190;
}
.sam-viewas-label {
  font-style: italic;
  letter-spacing: 0.01em;
}
.sam-viewas-clear {
  background: transparent;
  border: 1px solid #b87f33;
  color: #6b4a20;
  font-family: inherit;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 12px;
  cursor: pointer;
  white-space: nowrap;
}
.sam-viewas-clear:hover {
  background: #b87f33;
  color: white;
}
body.sam-viewing-as .sam-shell-header {
  border-top: 0;
}

.sam-shell-title {
  padding: 22px var(--shell-pad-x) var(--header-pad-y);
  position: relative;
}

.sam-shell-title .page-sub {
  margin-top: 4px;
  color: var(--muted);
  font-style: italic;
  font-size: 15px;
}

/* Header tools slot (refresh buttons, counts, search inputs that belong in the header). */
.sam-shell-title .page-tools {
  position: absolute;
  top: 24px;
  right: var(--shell-pad-x);
  display: flex;
  gap: 12px;
  align-items: center;
}

/* ===== Buttons (shared) =========================================== */

.button,
button.primary,
button.secondary,
button.danger {
  font-family: inherit;
  cursor: pointer;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 14px;
  padding: 10px 18px;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--ink);
}

button.primary,
.button.primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

button.secondary,
.button.secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--rule);
}

button.danger,
.button.danger {
  background: transparent;
  color: var(--bad);
  border-color: #d0a8a8;
}

button:disabled { opacity: 0.5; cursor: not-allowed; }

/* ===== Toast ====================================================== */

.sam-toast-host {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 200;
  pointer-events: none;
}

.sam-toast {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 10px 16px;
  font-size: 14px;
  color: var(--ink);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  min-width: 220px;
  max-width: 420px;
  pointer-events: auto;
  animation: sam-toast-in 160ms ease-out;
}

.sam-toast.error { border-color: var(--bad); color: var(--bad); }
.sam-toast.ok    { border-color: var(--good); }

@keyframes sam-toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== Chat dock (floating ask-Sam panel) ========================= */

.sam-chat-launcher {
  position: fixed;
  bottom: 22px;
  right: 22px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  border: 0;
  cursor: pointer;
  font-family: Georgia, 'Times New Roman', serif;
  font-style: italic;
  font-size: 18px;
  letter-spacing: -0.01em;
  box-shadow: 0 6px 18px rgba(20,20,20,0.18);
  z-index: 150;
  transition: width 140ms ease, border-radius 140ms ease;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.sam-chat-launcher .label {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-style: normal;
  font-weight: 700;
  opacity: 0;
  width: 0;
  overflow: hidden;
  white-space: nowrap;
  transition: opacity 140ms ease, width 140ms ease, margin-left 140ms ease;
}

.sam-chat-launcher .mark { font-size: 22px; }

.sam-chat-launcher:hover {
  width: 150px;
  border-radius: 30px;
}
.sam-chat-launcher:hover .label {
  opacity: 1;
  width: auto;
  margin-left: 8px;
}

.sam-chat-dock {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 420px;
  background: var(--bg);
  border-left: 1px solid var(--rule);
  box-shadow: -12px 0 32px rgba(20,20,20,0.10);
  z-index: 180;
  transform: translateX(100%);
  transition: transform 180ms ease;
  display: flex;
  flex-direction: column;
}

.sam-chat-dock.open {
  transform: translateX(0);
}

.sam-chat-dock .dock-head {
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sam-chat-dock .dock-head .title {
  font-size: 15px;
  font-style: italic;
  color: var(--ink);
}

.sam-chat-dock .dock-head .close {
  background: transparent;
  border: 0;
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 0;
}

.sam-chat-dock .dock-log {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
}

.sam-chat-dock .dock-composer {
  border-top: 1px solid var(--rule);
  padding: 12px 20px 16px;
  background: var(--bg);
  display: flex;
  gap: 8px;
  align-items: flex-end;
}

.sam-chat-dock textarea {
  flex: 1;
  min-height: 48px;
  max-height: 160px;
  resize: none;
  padding: 10px 12px;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 15px;
  line-height: 1.45;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--rule);
  outline: none;
}
.sam-chat-dock textarea:focus { border-color: var(--accent); }

.sam-chat-dock button.send {
  background: var(--accent);
  color: white;
  border: 0;
  padding: 10px 14px;
  font-family: inherit;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
}

.sam-chat-dock .turn { margin-bottom: 18px; }
.sam-chat-dock .who {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}
.sam-chat-dock .who.sam { color: var(--accent); }
.sam-chat-dock .body { white-space: pre-wrap; font-size: 15px; }
.sam-chat-dock .body.thinking { color: var(--muted); font-style: italic; }
.sam-chat-dock .tool-trace {
  margin: 0 0 6px 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  font-style: italic;
  color: var(--accent);
  opacity: 0.85;
}
.sam-chat-dock .tool-trace li { padding: 1px 0; }

/* ===== Mobile ===================================================== */

@media (max-width: 760px) {
  :root { --shell-pad-x: 16px; }
  body { font-size: 16px; }
  h1 { font-size: 26px; }
  h2 { font-size: 19px; }

  .sam-shell-nav {
    padding: 12px var(--shell-pad-x);
  }

  .sam-shell-burger { display: inline-block; }

  .sam-shell-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--rule);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 4px 0;
    z-index: 100;
  }

  .sam-shell-links.open { display: flex; }

  .sam-shell-links a {
    padding: 12px var(--shell-pad-x);
    border-bottom: 1px solid var(--rule);
  }
  .sam-shell-links a:last-child { border-bottom: 0; }
  .sam-shell-links a.active,
  .sam-shell-links a[aria-current="page"] {
    background: var(--focus-bg);
    border-bottom: 1px solid var(--rule);
  }

  .sam-shell-title {
    padding: 18px var(--shell-pad-x) 14px;
  }
  .sam-shell-title .page-tools {
    position: static;
    margin-top: 10px;
    flex-wrap: wrap;
  }

  .sam-chat-dock {
    width: 100vw;
  }

  .sam-chat-launcher {
    width: 54px;
    height: 54px;
    bottom: 14px;
    right: 14px;
  }
  .sam-chat-launcher:hover {
    width: 54px;
    border-radius: 50%;
  }
  .sam-chat-launcher:hover .label {
    opacity: 0;
    width: 0;
    margin-left: 0;
  }

  .sam-shell-viewas {
    order: 3;
    width: 100%;
    margin: 6px 0 0;
    justify-content: flex-start;
  }
  .sam-shell-viewas-select { max-width: 100%; flex: 1; }
  .sam-viewas-banner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    font-size: 13px;
  }
}