/* Unmanned Department AI ("Stellar") — Safeen Subsea
   Brand layer over Odysseus, styled to match Watchkeeper (Graphite theme,
   ~/Developer/Watchkeeper/dashboard.html): graphite surfaces, cyan accent,
   Space Grotesk titles, Inter body, JetBrains Mono uppercase labels with a
   cyan bar. Loaded last, so it wins the cascade. */

:root,
:root[data-theme],
html[data-theme] body {
  /* Watchkeeper "Flight-deck graphite" tokens */
  --wk-bg0: #090C10;
  --wk-bg1: #0D1117;
  --wk-surface: #12171F;
  --wk-surface2: #171E28;
  --wk-surface3: #1C2532;
  --wk-border: #1F2937;
  --wk-border2: #33415380;
  --wk-hair: #FFFFFF0A;
  --wk-good: #31D0AA;
  --wk-warn: #F5A83C;
  --wk-poor: #FF5C7A;
  --wk-accent: #38BDF8;
  --wk-txt: #DCE4EE;
  --wk-txt-hi: #F4F8FC;
  --wk-muted: #77879C;
  --wk-dim: #46556A;
  --wk-on-accent: #06121C;
  --wk-radius: 10px;
  --wk-radius-sm: 6px;
  --wk-elev-2: 0 6px 24px #00000059;
  --wk-elev-3: 0 16px 48px #0000008C;
  --wk-mono: 'JetBrains Mono', ui-monospace, monospace;
  --wk-sans: 'Inter', system-ui, sans-serif;
  --wk-display: 'Space Grotesk', 'Inter', sans-serif;

  /* Map onto Odysseus's tokens */
  --bg: var(--wk-bg0) !important;
  --panel: var(--wk-bg1) !important;
  --fg: var(--wk-txt) !important;
  --border: var(--wk-border) !important;
  --red: var(--wk-accent) !important;        /* Odysseus uses --red as its accent */
  --accent: var(--wk-accent) !important;
  --green: var(--wk-good) !important;
  --warn: var(--wk-warn) !important;
  --color-accent: var(--wk-accent) !important;
  --color-error: var(--wk-poor) !important;
  --color-success: var(--wk-good) !important;
  --color-warning: var(--wk-warn) !important;
  --color-subheader: var(--wk-muted) !important;
  --color-muted: var(--wk-muted) !important;
  --accent-warm: var(--wk-warn) !important;
  --hl-bg: var(--wk-bg1) !important;
  --brand-color: var(--wk-accent) !important;
  --font-family: var(--wk-sans) !important;
  --mono: var(--wk-mono) !important;
}

body {
  font-family: var(--wk-sans) !important;
  background: var(--wk-bg0) !important;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
pre, code, kbd, samp, .hljs, .code-block, .terminal, [class*="shell-output"] {
  font-family: var(--wk-mono) !important;
}
button:focus-visible, input:focus-visible, textarea:focus-visible,
[role="button"]:focus-visible { outline: 2px solid var(--wk-accent) !important; outline-offset: 1px; }
::-webkit-scrollbar-thumb { background: var(--wk-border) !important; }
html { scrollbar-color: var(--wk-border) transparent !important; }

/* No decorative background effects (rain etc.) */
#synapse-canvas, #rain-canvas, #constellations-canvas, #perlin-flow-canvas,
#petals-canvas, #sparkles-canvas, #embers-canvas { display: none !important; }

/* ===================== Sidebar ===================== */
.sidebar {
  background: var(--wk-bg1) !important;
  border-right: 1px solid var(--wk-border) !important;
}
.sidebar-header {
  height: 56px !important; min-height: 56px !important;
  border-bottom: 1px solid var(--wk-border);
  padding: 0 8px 0 12px !important; box-sizing: border-box;
}
/* The fixed hamburger (#hamburger-btn) sits at left:9px, so the lockup starts after it. */
.sidebar-brand {
  flex: 1; min-width: 0; display: flex !important; justify-content: flex-start !important;
  padding: 0 0 0 28px !important; overflow: hidden;
}
.sidebar-brand-title {
  background: none !important; -webkit-text-fill-color: initial !important;
  color: var(--wk-txt-hi) !important; font-size: inherit !important;
  position: static !important; left: 0 !important; margin: 0 !important;
}
.brand-lockup { display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; }
.brand-mark { height: 26px; width: 26px; display: block; flex-shrink: 0; }
.brand-text { display: flex; flex-direction: column; gap: 4px; line-height: 1; }
.brand-title {
  font-family: var(--wk-display); font-weight: 600; font-size: 10px;
  letter-spacing: 0.9px; text-transform: uppercase; color: var(--wk-txt-hi);
}
.brand-sub {
  font-family: var(--wk-mono); font-weight: 600; font-size: 8px;
  letter-spacing: 1.4px; text-transform: uppercase; color: var(--wk-muted);
}
.brand-sub b { color: var(--wk-accent); font-weight: 700; }

.sidebar-inner { padding-top: 12px !important; }
.sidebar .list-item {
  font-family: var(--wk-sans) !important; font-size: 13px !important; font-weight: 500;
  color: var(--wk-txt) !important; border-radius: var(--wk-radius-sm) !important;
  border: 1px solid transparent;
  transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
}
.sidebar .list-item span, .sidebar .list-item .grow { font-size: 13px !important; }
.sidebar .list-item:hover {
  background: var(--wk-hair) !important; color: var(--wk-txt-hi) !important;
  border-color: var(--wk-border);
}
.sidebar .list-item.active, .sidebar .list-item.selected, .sidebar .session-item.active {
  background: color-mix(in srgb, var(--wk-accent) 10%, transparent) !important;
  border-color: color-mix(in srgb, var(--wk-accent) 35%, transparent) !important;
  color: var(--wk-txt-hi) !important;
}
.sidebar .list-item svg { color: var(--wk-muted) !important; }
.sidebar .list-item:hover svg { color: var(--wk-accent) !important; }

/* Section headings (Chats, Email, Tools) = Watchkeeper .sidebar-label */
.sidebar .section-title {
  font-family: var(--wk-mono) !important; font-size: 9px !important; font-weight: 600 !important;
  letter-spacing: 2px !important; text-transform: uppercase !important;
  color: var(--wk-muted) !important; display: inline-flex !important; align-items: center; gap: 8px;
}
.sidebar .section-title .section-icon { display: none !important; }
.sidebar .section-title::before {
  content: ""; width: 4px; height: 10px; background: var(--wk-accent);
  border-radius: 1px; flex-shrink: 0;
}
.sidebar .section-header-flex { padding-top: 10px !important; padding-bottom: 4px !important; }
.sidebar .section-header-flex svg { color: var(--wk-dim) !important; }

/* New Chat = Watchkeeper active chip (cyan fill, dark text) */
#sidebar-new-chat-btn {
  background: var(--wk-accent) !important; border-color: var(--wk-accent) !important;
  color: var(--wk-on-accent) !important; margin-bottom: 8px;
}
#sidebar-new-chat-btn span, #sidebar-new-chat-btn .grow {
  font-family: var(--wk-mono) !important; font-weight: 700 !important; font-size: 11px !important;
  letter-spacing: 1.5px; text-transform: uppercase; color: var(--wk-on-accent) !important;
}
#sidebar-new-chat-btn svg { color: var(--wk-on-accent) !important; }
#sidebar-new-chat-btn:hover { background: color-mix(in srgb, var(--wk-accent) 85%, white) !important; }

.sidebar-user-bar { border-top: 1px solid var(--wk-border) !important; }
.user-bar-avatar {
  background: var(--wk-surface3) !important; color: var(--wk-accent) !important;
  border: 1px solid var(--wk-border2); font-family: var(--wk-mono) !important; font-weight: 700 !important;
}

/* ===================== Top bar ===================== */
#current-meta {
  font-family: var(--wk-display) !important; font-weight: 600 !important;
  letter-spacing: 4px !important; text-transform: uppercase; font-size: 12px !important;
  color: var(--wk-txt-hi) !important;
}

/* ===================== Welcome (Watchkeeper splash) ===================== */
#welcome-screen .welcome-boat { display: none !important; }
.welcome-safeen-logo { display: block; height: 26px; width: auto; margin: 0 auto 22px; }
.welcome-brand-logo { display: block; height: 80px; width: 80px; margin: 0 auto 16px; }
#welcome-screen .welcome-name {
  font-family: var(--wk-display) !important; font-weight: 600 !important;
  font-size: 30px !important; letter-spacing: 8px !important; text-transform: uppercase;
  background: none !important; -webkit-text-fill-color: var(--wk-txt-hi) !important;
  color: var(--wk-txt-hi) !important; margin-bottom: 8px !important;
}
#welcome-screen .welcome-sub {
  font-family: var(--wk-mono) !important; font-weight: 500 !important;
  text-transform: uppercase; letter-spacing: 3px !important; font-size: 11px !important;
  color: var(--wk-muted) !important; opacity: 1 !important;
}
#welcome-screen .welcome-sub b { color: var(--wk-accent); font-weight: 600; }
#welcome-tip { font-family: var(--wk-sans) !important; color: var(--wk-dim) !important; }

/* ===================== Composer ===================== */
.chat-input-bar {
  background: var(--wk-surface) !important;
  border: 1px solid var(--wk-border) !important; border-radius: var(--wk-radius) !important;
  box-shadow: var(--wk-elev-2) !important;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.chat-input-bar:focus-within {
  border-color: color-mix(in srgb, var(--wk-accent) 55%, var(--wk-border)) !important;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--wk-accent) 14%, transparent), var(--wk-elev-2) !important;
}
#message { font-family: var(--wk-sans) !important; font-size: 14px !important; color: var(--wk-txt) !important; }
/* the whole bar glows on focus, so the textarea itself needs no outline */
#message:focus, #message:focus-visible { outline: none !important; box-shadow: none !important; border: none !important; }
#message::placeholder { color: var(--wk-dim) !important; }
.send-btn {
  background: var(--wk-accent) !important; color: var(--wk-on-accent) !important;
  border: 1px solid var(--wk-accent) !important; border-radius: var(--wk-radius-sm) !important;
}
.send-btn svg { color: var(--wk-on-accent) !important; stroke: var(--wk-on-accent) !important; }
.send-btn:hover { background: color-mix(in srgb, var(--wk-accent) 85%, white) !important; }
/* Agent / Chat = Watchkeeper timeframe chips */
.mode-toggle { border: 1px solid var(--wk-border) !important; border-radius: 5px !important; background: transparent !important; }
.mode-toggle-btn {
  font-family: var(--wk-mono) !important; font-size: 10px !important; font-weight: 500 !important;
  letter-spacing: 1px; text-transform: uppercase; color: var(--wk-muted) !important;
}
.mode-toggle-btn.active {
  background: var(--wk-accent) !important; color: var(--wk-on-accent) !important; font-weight: 700 !important;
}
.input-icon-btn { color: var(--wk-muted) !important; }
.input-icon-btn:hover { color: var(--wk-accent) !important; }

/* ===================== Login (Watchkeeper splash + card) ===================== */
body:has(.brand-login) {
  background:
    radial-gradient(900px 500px at 50% -10%, color-mix(in srgb, var(--wk-accent) 9%, transparent), transparent 65%),
    var(--wk-bg0) !important;
  min-height: 100vh;
}
body:has(.brand-login)::before {
  content: ""; position: fixed; right: -4vw; bottom: -6vh; width: 56vw; height: 56vh;
  background: url(/static/brand/chevrons.svg) no-repeat right bottom / contain;
  opacity: 0.04; pointer-events: none;
}
body:has(.brand-login) .card {
  background: var(--wk-surface) !important;
  border: 1px solid var(--wk-border) !important;
  border-radius: var(--wk-radius) !important;
  box-shadow: var(--wk-elev-3) !important;
  padding: 36px 34px 30px !important;
  width: min(400px, calc(100vw - 32px)) !important;
}
.brand-login {
  text-align: center !important; width: 100%;
  display: flex !important; flex-direction: column; align-items: center;
  gap: 6px; margin: 0 0 28px !important; background: none !important;
  -webkit-text-fill-color: initial !important;
}
.brand-login-logo { height: 22px; width: auto; margin-bottom: 18px; opacity: 0.9; }
.brand-login-mark { height: 72px; width: 72px; margin-bottom: 8px; }
/* login.html styles ".logo span" as a big gradient word; undo that for our spans */
h1.logo.brand-login span {
  background: none !important; -webkit-background-clip: border-box !important;
  background-clip: border-box !important; -webkit-text-fill-color: currentColor !important;
  display: block;
}
h1.logo.brand-login .brand-login-app {
  font-family: var(--wk-display) !important; font-weight: 600 !important; font-size: 15px !important;
  letter-spacing: 4px !important; text-transform: uppercase; line-height: 1.3 !important;
  white-space: nowrap;
  color: var(--wk-txt-hi) !important; order: 1;
}
h1.logo.brand-login .brand-login-dept {
  font-family: var(--wk-mono) !important; font-weight: 500 !important; font-size: 10px !important;
  letter-spacing: 3px !important; text-transform: uppercase; line-height: 1.3 !important;
  color: var(--wk-accent) !important; order: 2;
}
body:has(.brand-login) label {
  font-family: var(--wk-mono) !important; font-size: 9px !important; font-weight: 600 !important;
  letter-spacing: 2px !important; text-transform: uppercase; color: var(--wk-muted) !important;
}
body:has(.brand-login) input[type="text"],
body:has(.brand-login) input[type="password"] {
  font-family: var(--wk-mono) !important; font-size: 13px !important;
  background: var(--wk-bg1) !important; border: 1px solid var(--wk-border) !important;
  border-radius: var(--wk-radius-sm) !important; color: var(--wk-txt) !important; box-shadow: none !important;
}
body:has(.brand-login) input:focus {
  border-color: var(--wk-accent) !important;
  outline: 2px solid color-mix(in srgb, var(--wk-accent) 22%, transparent) !important;
}
body:has(.brand-login) #submitBtn {
  font-family: var(--wk-mono) !important; font-weight: 700 !important; font-size: 11px !important;
  letter-spacing: 2px; text-transform: uppercase;
  background: var(--wk-accent) !important; color: var(--wk-on-accent) !important;
  border: 1px solid var(--wk-accent) !important; border-radius: var(--wk-radius-sm) !important;
  transition: background 0.15s ease, transform 0.1s ease;
}
body:has(.brand-login) #submitBtn:hover { background: color-mix(in srgb, var(--wk-accent) 85%, white) !important; }
body:has(.brand-login) #submitBtn:active { transform: translateY(1px); }
body:has(.brand-login) .version-label { font-family: var(--wk-mono) !important; color: var(--wk-dim) !important; }

/* =====================================================================
   Familiar sidebar (ChatGPT / Claude pattern): New chat and Search on top,
   tools as one collapsible group, RECENT CHATS filling the rest, profile at
   the bottom. Order is visual only (flex order); the markup is untouched.
   ===================================================================== */
.sidebar-inner { display: flex !important; flex-direction: column !important; min-height: 0; }
#sidebar-new-chat-btn { order: 0; }
#sidebar-search-btn  { order: 1; }
#tools-section       { order: 2; }
#email-section       { display: none !important; }   /* no mail account configured */
#sessions-section    { order: 3; flex: 1 1 auto; min-height: 0; display: flex !important; flex-direction: column; }
#sessions-section #session-list { flex: 1 1 auto; overflow-y: auto; min-height: 0; padding-bottom: 6px; }

/* New chat: a full-width button with a little more presence */
#sidebar-new-chat-btn { min-height: 38px; justify-content: flex-start; padding-left: 14px !important; }

/* Search reads like a field, the way most chat apps show it */
#sidebar-search-btn {
  border: 1px solid var(--wk-border) !important; background: var(--wk-bg0) !important;
  color: var(--wk-muted) !important; margin: 2px 0 8px;
}
#sidebar-search-btn span { color: var(--wk-muted) !important; font-weight: 400 !important; }
#sidebar-search-btn:hover { border-color: var(--wk-border2) !important; color: var(--wk-txt) !important; }

/* Tools: one quiet group header; its items indent under it when opened */
#tools-section .list-item { padding-left: 14px !important; }
#tools-section.collapsed > .list-item { display: none !important; }

/* Recent chats: plain title rows, one line each, details only on hover */
#sessions-section .section-header-flex { padding-top: 14px !important; }
#session-list .session-item {
  min-height: 34px; padding: 6px 10px !important; margin: 1px 0;
  border: 1px solid transparent !important; border-radius: 6px !important;
}
#session-list .session-item .grow, #session-list .session-item .session-name,
#session-list .session-item [class*="title"] {
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  font-size: 13px !important; font-weight: 400 !important; color: var(--wk-txt) !important;
}
#session-list .session-item .item-drag-handle,
#session-list .session-item .session-star { opacity: 0 !important; width: 0; overflow: hidden; transition: opacity .12s, width .12s; }
#session-list .session-item:hover .item-drag-handle { opacity: .5 !important; width: auto; }
#session-list .session-item:hover { background: var(--wk-hair) !important; }
#session-list .session-item.active-session {
  background: color-mix(in srgb, var(--wk-accent) 12%, transparent) !important;
  border-color: color-mix(in srgb, var(--wk-accent) 30%, transparent) !important;
}
#session-list .session-item.active-session .grow,
#session-list .session-item.active-session [class*="title"] { color: var(--wk-txt-hi) !important; font-weight: 500 !important; }

/* Credit line: small, always there, never in the way */
.stellar-credit {
  display: block; padding: 8px 14px 6px; border-top: 1px solid var(--wk-border);
  font-family: var(--wk-mono); font-size: 9px; letter-spacing: 0.6px; line-height: 1.4;
  color: var(--wk-dim) !important; text-decoration: none;
}
.stellar-credit:hover { color: var(--wk-accent) !important; }
.stellar-credit-login { position: fixed; left: 0; right: 0; bottom: 14px; text-align: center; pointer-events: auto; }
.stellar-credit-login .stellar-credit { display: inline-block; border: 0; padding: 0; font-size: 10px; }

/* Chat rows: start the title near the left edge, like other chat apps */
#session-list .session-item { gap: 8px !important; }
#session-list .session-item .item-drag-handle { position: absolute; left: -2px; }
#session-list .session-item { position: relative; padding-left: 12px !important; }
#session-list .session-item > svg, #session-list .session-item .session-icon { flex-shrink: 0; opacity: .55; }

/* =====================================================================
   HUD layer: holographic cyan instrument feel. Everything here is
   decorative, pointer-events:none where it overlays, and switched off for
   prefers-reduced-motion. No content depends on it.
   ===================================================================== */
:root { --hud: var(--wk-accent); --hud-soft: color-mix(in srgb, var(--wk-accent) 22%, transparent); --hud-faint: color-mix(in srgb, var(--wk-accent) 7%, transparent); }

/* Admin-only pages hidden for everyone else (the server refuses them anyway) */
html:not(.stellar-admin) #tool-cookbook-btn,
html:not(.stellar-admin) #rail-cookbook { display: none !important; }

/* Background: a faint instrument grid with a soft glow at the centre */
#chat-container {
  background:
    radial-gradient(ellipse 60% 45% at 50% 42%, color-mix(in srgb, var(--wk-accent) 6%, transparent), transparent 70%),
    linear-gradient(transparent 0 calc(100% - 1px), color-mix(in srgb, var(--wk-accent) 5%, transparent) 0) 0 0 / 100% 44px,
    linear-gradient(90deg, transparent 0 calc(100% - 1px), color-mix(in srgb, var(--wk-accent) 5%, transparent) 0) 0 0 / 44px 100%,
    var(--wk-bg0) !important;
  position: relative;
}
/* A slow scan line sweeping the main area */
#chat-container::after {
  content: ""; position: absolute; left: 0; right: 0; top: -20%; height: 18%;
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--wk-accent) 5%, transparent) 70%, color-mix(in srgb, var(--wk-accent) 11%, transparent) 99%, transparent);
  pointer-events: none; z-index: 0; animation: hud-scan 9s linear infinite;
}
@keyframes hud-scan { from { transform: translateY(0); } to { transform: translateY(680%); } }

/* Welcome: the Stellar mark inside rotating rings */
.hud-core { position: relative; width: 210px; height: 210px; margin: 0 auto 14px; display: grid; place-items: center; }
.hud-core .welcome-brand-logo {
  width: 92px !important; height: 92px !important; margin: 0 !important; position: relative; z-index: 1;
  filter: drop-shadow(0 0 10px color-mix(in srgb, var(--wk-accent) 45%, transparent));
  animation: hud-breathe 4.5s ease-in-out infinite;
}
.hud-rings { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.hud-ring { fill: none; stroke: var(--hud); transform-origin: 120px 120px; }
.hud-r1 { stroke-width: 1; stroke-dasharray: 2 6; opacity: .55; animation: hud-spin 60s linear infinite; }
.hud-r2 { stroke-width: 2.5; stroke-dasharray: 90 40 20 40 140 60; opacity: .75; animation: hud-spin 18s linear infinite reverse;
          filter: drop-shadow(0 0 4px var(--wk-accent)); }
.hud-r3 { stroke-width: 1; stroke-dasharray: 1 3; opacity: .35; animation: hud-spin 40s linear infinite; }
.hud-ticks { stroke: var(--hud); stroke-width: 1.2; opacity: .45; transform-origin: 120px 120px; animation: hud-spin 120s linear infinite reverse; }
.hud-orbit { fill: #F4F8FC; transform-origin: 120px 120px; animation: hud-spin 7s linear infinite; filter: drop-shadow(0 0 5px var(--wk-accent)); }
@keyframes hud-spin { to { transform: rotate(360deg); } }
@keyframes hud-breathe { 0%, 100% { filter: drop-shadow(0 0 8px color-mix(in srgb, var(--wk-accent) 35%, transparent)); }
                         50% { filter: drop-shadow(0 0 18px color-mix(in srgb, var(--wk-accent) 70%, transparent)); } }

/* Title: holographic glow and a one-time power-up reveal */
#welcome-screen .welcome-name {
  text-shadow: 0 0 18px color-mix(in srgb, var(--wk-accent) 45%, transparent), 0 0 2px color-mix(in srgb, var(--wk-accent) 80%, transparent);
  animation: hud-reveal 1.1s cubic-bezier(.2,.7,.2,1) both .15s !important;
}
@keyframes hud-reveal { from { clip-path: inset(0 100% 0 0); opacity: .2; } to { clip-path: inset(0 0 0 0); opacity: 1; } }
.hud-status {
  margin: 14px auto 0; display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--wk-mono); font-size: 9.5px; font-weight: 600; letter-spacing: 2.4px; color: var(--wk-muted);
  border: 1px solid var(--wk-border); border-radius: 999px; padding: 5px 12px; background: color-mix(in srgb, var(--wk-bg1) 80%, transparent);
}
#welcome-screen { text-align: center; }
.hud-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--wk-good); box-shadow: 0 0 8px var(--wk-good); animation: hud-pulse 1.8s ease-in-out infinite; }
@keyframes hud-pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .45; transform: scale(.75); } }

/* Composer: HUD corner brackets that light up on focus */
.chat-input-bar { position: relative; }
.chat-input-bar::before, .chat-input-bar::after {
  content: ""; position: absolute; width: 16px; height: 16px; pointer-events: none;
  border-color: color-mix(in srgb, var(--wk-accent) 55%, transparent); border-style: solid; transition: all .25s ease;
}
.chat-input-bar::before { top: -5px; left: -5px; border-width: 2px 0 0 2px; border-top-left-radius: 4px; }
.chat-input-bar::after { bottom: -5px; right: -5px; border-width: 0 2px 2px 0; border-bottom-right-radius: 4px; }
.chat-input-bar:focus-within::before, .chat-input-bar:focus-within::after {
  width: 26px; height: 26px; border-color: var(--wk-accent); filter: drop-shadow(0 0 6px var(--wk-accent));
}
.send-btn { box-shadow: 0 0 14px color-mix(in srgb, var(--wk-accent) 40%, transparent) !important; }
.send-btn:hover { box-shadow: 0 0 22px color-mix(in srgb, var(--wk-accent) 65%, transparent) !important; }

/* New chat: a light sweep across on hover */
#sidebar-new-chat-btn { position: relative; overflow: hidden; }
#sidebar-new-chat-btn::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -60%; width: 40%; pointer-events: none;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,.45), transparent); transform: skewX(-18deg);
}
#sidebar-new-chat-btn:hover::after { animation: hud-sheen .7s ease; }
@keyframes hud-sheen { to { left: 130%; } }

/* Active chat: a glowing edge, like a selected track on a plotter */
#session-list .session-item.active-session { box-shadow: inset 2px 0 0 var(--wk-accent), 0 0 14px color-mix(in srgb, var(--wk-accent) 12%, transparent) !important; }

/* Top bar title: soft holographic glow */
#current-meta { text-shadow: 0 0 12px color-mix(in srgb, var(--wk-accent) 40%, transparent); }

/* Login: rings behind the card */
body:has(.brand-login) .card { position: relative; z-index: 1; }
body:has(.brand-login) .card::before {
  content: ""; position: absolute; inset: -60px; z-index: -1; pointer-events: none; border-radius: 50%;
  border: 1px dashed color-mix(in srgb, var(--wk-accent) 18%, transparent); animation: hud-spin 50s linear infinite;
}

@media (prefers-reduced-motion: reduce) {
  #chat-container::after, .hud-ring, .hud-ticks, .hud-orbit, .hud-core .welcome-brand-logo,
  #welcome-screen .welcome-name, .hud-dot, #sidebar-new-chat-btn::after, body:has(.brand-login) .card::before {
    animation: none !important;
  }
  #chat-container::after { display: none; }
}

/* =====================================================================
   Themes - the same five as Watchkeeper (dashboard.html), same colours.
   Graphite is the default (tokens at the top). Switch with the theme button
   (sidebar footer); stellar-theme.js stores the choice per browser.
   "html.theme-x body" is needed because the base tokens are also set on body.
   ===================================================================== */
html.theme-ocean, html.theme-ocean body {
  --wk-bg0:#030A12; --wk-bg1:#071523; --wk-surface:#0B1F35; --wk-surface2:#102A46; --wk-surface3:#153350;
  --wk-border:#1A3A57; --wk-border2:#26517A; --wk-good:#2BE7C0; --wk-warn:#FFB347; --wk-poor:#FF5470;
  --wk-accent:#2BE7C0; --wk-txt:#D6E4F2; --wk-txt-hi:#F0F7FF; --wk-muted:#6A8AA8; --wk-dim:#40607E; --wk-on-accent:#03121C;
}
html.theme-midnight, html.theme-midnight body {
  --wk-bg0:#04060A; --wk-bg1:#090D13; --wk-surface:#0F141C; --wk-surface2:#151B25; --wk-surface3:#1C2431;
  --wk-border:#1B2433; --wk-border2:#2B3A52cc; --wk-good:#2BE0A0; --wk-warn:#F7B955; --wk-poor:#FF4D6D;
  --wk-accent:#6AD1FF; --wk-txt:#DAE4F0; --wk-txt-hi:#F6FAFE; --wk-muted:#7C8DA4; --wk-dim:#495C74; --wk-on-accent:#041018;
}
html.theme-amber, html.theme-amber body {
  --wk-bg0:#0A0805; --wk-bg1:#100C07; --wk-surface:#17120A; --wk-surface2:#1E180F; --wk-surface3:#272013;
  --wk-border:#2C2415; --wk-border2:#443A22cc; --wk-good:#6FCE8F; --wk-warn:#FFD43B; --wk-poor:#FF6B6B;
  --wk-accent:#FFB454; --wk-txt:#EADFC9; --wk-txt-hi:#FBF5E6; --wk-muted:#A18F6F; --wk-dim:#6E5F45; --wk-on-accent:#1A1206;
}
html.theme-light, html.theme-light body {
  --wk-bg0:#E7E1D2; --wk-bg1:#EDE8DA; --wk-surface:#F5F0E4; --wk-surface2:#EAE4D4; --wk-surface3:#DFD8C4;
  --wk-border:#C2B99F; --wk-border2:#A2977A; --wk-good:#0C7A5E; --wk-warn:#9E5C00; --wk-poor:#B8283F;
  --wk-accent:#17509F; --wk-txt:#23241F; --wk-txt-hi:#121310; --wk-muted:#565A4E; --wk-dim:#757A6A; --wk-on-accent:#FFFFFF;
  --wk-hair:#0000000A; --wk-elev-2: 0 6px 18px #0000001f; --wk-elev-3: 0 14px 36px #00000029;
  color-scheme: light;
}
/* Daylight: the dark Safeen logo (the white one disappears on paper), no glow */
html.theme-light .welcome-safeen-logo, html.theme-light .brand-login-logo { content: url(/static/brand/logo.svg); }
html.theme-light #welcome-screen .welcome-name, html.theme-light #current-meta { text-shadow: none; }
html.theme-light .hud-r2, html.theme-light .hud-orbit, html.theme-light .hud-core .welcome-brand-logo { filter: none; }
html.theme-light .hud-orbit { fill: var(--wk-accent); }
html.theme-light #chat-container::after { opacity: .5; }
html.theme-light .send-btn { box-shadow: none !important; }

/* Theme button, like Watchkeeper's */
.stellar-footer { display: flex; align-items: center; justify-content: space-between; gap: 8px;
  border-top: 1px solid var(--wk-border); padding: 7px 10px 6px 14px; }
.stellar-footer .stellar-credit { border: 0; padding: 0; }
#stellar-theme-btn {
  background: transparent; border: 1px solid var(--wk-border2); color: var(--wk-muted); border-radius: 4px;
  padding: 3px 9px; font-family: var(--wk-mono); font-size: 9px; font-weight: 600; letter-spacing: 1.5px;
  text-transform: uppercase; cursor: pointer; transition: all .15s;
}
#stellar-theme-btn:hover { color: var(--wk-txt); border-color: var(--wk-accent); }

/* Animated backgrounds (stellar-bg.js): one canvas behind the chat area */
#chat-container { isolation: isolate; }
#stellar-bg-canvas { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
html:not(.bg-scan) #chat-container::after { display: none !important; }   /* scan line only in Scan mode */
html.bg-stars #chat-container, html.bg-sea #chat-container {               /* no grid behind stars / sea */
  background: radial-gradient(ellipse 60% 45% at 50% 42%, color-mix(in srgb, var(--wk-accent) 6%, transparent), transparent 70%),
              var(--wk-bg0) !important;
}
.stellar-footer .stellar-footer-btns { display: flex; gap: 6px; }
#stellar-bg-btn { background: transparent; border: 1px solid var(--wk-border2); color: var(--wk-muted); border-radius: 4px;
  padding: 3px 8px; font-family: var(--wk-mono); font-size: 9px; font-weight: 600; letter-spacing: 1.2px;
  text-transform: uppercase; cursor: pointer; transition: all .15s; white-space: nowrap; }
#stellar-bg-btn:hover { color: var(--wk-txt); border-color: var(--wk-accent); }

/* Daylight: the sidebar header kept a dark background and hid the title */
.sidebar-header { background: var(--wk-bg1) !important; }

/* Login: the animated background fills the page behind the card */
#stellar-bg-canvas.on-login { position: fixed; inset: 0; z-index: 0; }
body:has(.brand-login) .card { z-index: 2; }
html:not(.bg-scan) body:has(.brand-login)::before { display: none; }       /* chevrons only with Scan */

/* ── Welcome intro (once per session) ─────────────────────────────────── */
#stellar-splash {
  position: fixed; inset: 0; z-index: 100000; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 6px; background:
    radial-gradient(ellipse 55% 45% at 50% 45%, color-mix(in srgb, var(--wk-accent) 9%, transparent), transparent 70%), var(--wk-bg0);
  animation: splash-out .7s ease 2.6s forwards; pointer-events: none;
}
html.splash-seen #stellar-splash { display: none; }
#stellar-splash .hud-core { width: 200px; height: 200px; margin-bottom: 18px; animation: splash-in .8s ease both; }
.splash-title { font-family: var(--wk-display); font-weight: 600; font-size: 26px; letter-spacing: 8px; text-transform: uppercase;
  color: var(--wk-txt-hi); text-shadow: 0 0 18px color-mix(in srgb, var(--wk-accent) 45%, transparent);
  animation: hud-reveal 1s cubic-bezier(.2,.7,.2,1) both .35s; text-align: center; padding: 0 16px; }
.splash-sub { font-family: var(--wk-mono); font-size: 11px; letter-spacing: 3px; text-transform: uppercase; color: var(--wk-muted);
  animation: splash-in .6s ease both .9s; }
.splash-sub b { color: var(--wk-accent); font-weight: 600; }
.splash-boot { margin-top: 26px; width: min(340px, 80vw); animation: splash-in .5s ease both 1.1s; }
.splash-boot-bar { height: 2px; background: var(--wk-border); border-radius: 2px; overflow: hidden; }
.splash-boot-bar i { display: block; height: 100%; width: 100%; background: var(--wk-accent);
  box-shadow: 0 0 10px var(--wk-accent); transform-origin: left; animation: splash-bar 1.4s ease-in-out both 1.15s; }
.splash-boot-text { margin-top: 9px; display: flex; justify-content: space-between; font-family: var(--wk-mono);
  font-size: 9px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--wk-dim); }
.splash-boot-text span { animation: splash-tick .4s ease both; }
.splash-boot-text span:nth-child(1) { animation-delay: 1.25s; }
.splash-boot-text span:nth-child(2) { animation-delay: 1.7s; }
.splash-boot-text span:nth-child(3) { animation-delay: 2.15s; }
@keyframes splash-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@keyframes splash-out { to { opacity: 0; visibility: hidden; } }
@keyframes splash-bar { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes splash-tick { from { opacity: 0; color: var(--wk-dim); } to { opacity: 1; color: var(--wk-accent); } }
@media (prefers-reduced-motion: reduce) { #stellar-splash { display: none; } }
html.bg-chart #chat-container, html.bg-currents #chat-container, html.bg-route #chat-container {
  background: radial-gradient(ellipse 60% 45% at 50% 42%, color-mix(in srgb, var(--wk-accent) 5%, transparent), transparent 70%),
              var(--wk-bg0) !important;
}
.stellar-footer .stellar-credit { white-space: nowrap; font-size: 8.5px; letter-spacing: .4px; }
.stellar-footer { padding-left: 12px; }
html.bg-survey #chat-container, html.bg-live #chat-container, html.bg-ais #chat-container,
html.bg-passage #chat-container, html.bg-tides #chat-container {
  background: radial-gradient(ellipse 60% 45% at 50% 42%, color-mix(in srgb, var(--wk-accent) 5%, transparent), transparent 70%),
              var(--wk-bg0) !important;
}

/* footer buttons: compact so long names (PASSAGE, CURRENTS) don't push GRAPHITE off the sidebar */
#stellar-bg-btn, #stellar-theme-btn { padding: 3px 6px; letter-spacing: .8px; }
.stellar-footer .stellar-footer-btns { gap: 4px; flex-shrink: 0; }