/* ─── Variables ───────────────────────────────────────────────────────────── */
:root {
  --bg:          #020c14;
  --surface:     #05141f;
  --surface2:    #071e2e;
  --accent:      #00b4d8;
  --accent-dim:  rgba(0, 180, 216, 0.12);
  --accent-glow: rgba(0, 180, 216, 0.4);
  --accent-mid:  #0077b6;
  --gold:        #d4a017;
  --gold-dim:    rgba(212, 160, 23, 0.15);
  --text:        #caf0f8;
  --muted:       #4a7a8a;
  --border:      rgba(0, 180, 216, 0.15);
  --border-mid:  rgba(0, 180, 216, 0.3);
  --danger:      #c0392b;
  --online:      #00e5ff;
  --offline:     #1a3a44;
  --font:        -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --mono:        'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  --header-h:    52px;
  --sphere-h:    clamp(300px, 70vh, 700px);
  --input-h:     60px;
}

/* ─── Reset ───────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

body {
  display: flex;
  flex-direction: column;
  height: 100dvh;
}

/* ─── Background ──────────────────────────────────────────────────────────── */
#bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,180,216,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,180,216,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

#bg-vignette {
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(2,12,20,0.8) 100%);
  pointer-events: none;
  z-index: 0;
}

/* ─── Header ──────────────────────────────────────────────────────────────── */
#header {
  position: relative;
  z-index: 10;
  height: var(--header-h);
  padding: 0 16px;
  padding-top: max(0px, env(safe-area-inset-top));
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  background: rgba(2,12,20,0.7);
  backdrop-filter: blur(10px);
  flex-shrink: 0;
}

#header-left {
  display: flex;
  flex-direction: column;
  gap: 0;
}

#logo {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.22em;
  color: var(--accent);
  font-family: var(--mono);
  text-shadow: 0 0 12px var(--accent-glow);
  line-height: 1.1;
}

#logo-sub {
  font-size: 9px;
  letter-spacing: 0.15em;
  color: var(--muted);
  font-family: var(--mono);
}

#header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.agent-status-item {
  display: flex;
  align-items: center;
  gap: 5px;
  text-decoration: none;
  color: inherit;
  border-radius: 4px;
  padding: 2px 5px;
  transition: background 0.2s;
}
a.agent-status-item:hover {
  background: rgba(0, 180, 216, 0.12);
  cursor: pointer;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--offline);
  transition: background 0.3s, box-shadow 0.3s;
}
.status-dot.online {
  background: var(--online);
  box-shadow: 0 0 6px var(--accent-glow);
}

.status-label {
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--muted);
  font-family: var(--mono);
}

#btn-voice-toggle, #btn-memory {
  width: 34px;
  height: 34px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s, border-color 0.2s, background 0.2s, box-shadow 0.2s;
}
#btn-memory:hover { color: var(--accent); border-color: var(--border-mid); }

#btn-voice-toggle:hover { color: var(--accent); border-color: var(--border-mid); }
#btn-voice-toggle.active {
  color: var(--accent);
  border-color: var(--border-mid);
  background: var(--accent-dim);
  box-shadow: 0 0 8px var(--accent-glow);
}

/* ─── Sphere section ──────────────────────────────────────────────────────── */
#sphere-section {
  position: relative;
  z-index: 1;
  height: var(--sphere-h);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

#sphere-wrap {
  position: relative;
  width: 100%;
  height: calc(var(--sphere-h) - 28px);
  display: flex;
  align-items: center;
  justify-content: center;
}

#sphere-canvas {
  display: block;
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 18px rgba(0,180,216,0.5));
  transition: filter 0.4s;
  touch-action: none;
  cursor: grab;
}
#sphere-canvas:active { cursor: grabbing; }

#sphere-wrap[data-state="listening"] #sphere-canvas {
  filter: drop-shadow(0 0 22px rgba(212,160,23,0.6));
}
#sphere-wrap[data-state="speaking"] #sphere-canvas {
  filter: drop-shadow(0 0 28px rgba(0,212,255,0.7));
}
#sphere-wrap[data-state="thinking"] #sphere-canvas {
  filter: drop-shadow(0 0 20px rgba(0,180,216,0.55));
}

/* Outer rotating ring (CSS) */
#sphere-ring-outer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

#sphere-status {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.25em;
  color: var(--muted);
  text-align: center;
  transition: color 0.3s;
}
#sphere-wrap[data-state="listening"] ~ #sphere-status { color: var(--gold); }
#sphere-wrap[data-state="speaking"]  ~ #sphere-status { color: var(--accent); }
#sphere-wrap[data-state="thinking"]  ~ #sphere-status { color: var(--accent); }

/* ─── Messages ────────────────────────────────────────────────────────────── */
#messages-section {
  position: relative;
  z-index: 1;
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

#messages {
  flex: 1;
  overflow-y: auto;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  scroll-behavior: smooth;
}

#messages::-webkit-scrollbar { width: 3px; }
#messages::-webkit-scrollbar-track { background: transparent; }
#messages::-webkit-scrollbar-thumb { background: var(--border-mid); border-radius: 3px; }

.message {
  max-width: 88%;
  padding: 9px 13px;
  border-radius: 4px;
  position: relative;
  animation: msgIn 0.15s ease;
  word-break: break-word;
  font-size: 13.5px;
  line-height: 1.5;
}

@keyframes msgIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.message::before {
  content: attr(data-label);
  display: block;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  margin-bottom: 4px;
  opacity: 0.6;
}

.message.user {
  align-self: flex-end;
  background: rgba(212, 160, 23, 0.08);
  border: 1px solid rgba(212, 160, 23, 0.25);
  border-right: 2px solid var(--gold);
  color: #f0d080;
}
.message.user::before { color: var(--gold); content: 'INPUT'; }

.message.assistant {
  align-self: flex-start;
  background: var(--accent-dim);
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent);
  color: var(--text);
}
.message.assistant::before { color: var(--accent); content: 'STARK'; }

.file-download-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: var(--accent);
  text-decoration: none;
  font-size: 13px;
  font-family: var(--mono);
  transition: background 0.2s;
}
.file-download-btn:hover { background: rgba(0, 229, 255, 0.2); }

.message.tool-event {
  align-self: center;
  max-width: 100%;
  padding: 5px 12px;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
}
.message.tool-event::before { display: none; }

/* Markdown in assistant */
.message.assistant p { margin-bottom: 6px; }
.message.assistant p:last-child { margin-bottom: 0; }
.message.assistant ul, .message.assistant ol { margin: 6px 0 6px 16px; }
.message.assistant li { margin-bottom: 2px; }
.message.assistant code {
  font-family: var(--mono);
  font-size: 12px;
  background: rgba(0,180,216,0.1);
  padding: 1px 4px;
  border-radius: 3px;
  color: var(--accent);
}
.message.assistant pre {
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px;
  overflow-x: auto;
  margin: 6px 0;
}
.message.assistant pre code { background: transparent; padding: 0; color: #a8d8e8; }
.message.assistant h1,.message.assistant h2,.message.assistant h3 {
  color: var(--accent); font-size: 13px; margin: 8px 0 4px;
}
.message.assistant a { color: var(--accent); }
.message.assistant strong { color: #e0f0ff; }

/* Typing indicator */
.typing-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  background: var(--accent-dim);
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent);
  color: var(--muted);
  font-size: 11px;
  font-family: var(--mono);
  letter-spacing: 0.05em;
  max-width: 88%;
}
.typing-dots { display: flex; gap: 4px; align-items: center; }
.typing-dots span {
  width: 5px; height: 5px;
  background: var(--accent);
  border-radius: 50%;
  animation: tdot 1.2s ease-in-out infinite;
}
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes tdot {
  0%,80%,100% { transform: scale(0.6); opacity: 0.3; }
  40%          { transform: scale(1);   opacity: 1; }
}

/* ─── Voice overlay ───────────────────────────────────────────────────────── */
#voice-overlay {
  position: fixed;
  bottom: calc(var(--input-h) + 8px + env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%);
  background: rgba(2,12,20,0.92);
  border: 1px solid rgba(212,160,23,0.4);
  border-radius: 6px;
  padding: 8px 20px;
  z-index: 40;
  text-align: center;
  backdrop-filter: blur(8px);
}

#voice-text {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
  animation: voicepulse 1.5s ease-in-out infinite;
}
@keyframes voicepulse {
  0%,100% { opacity: 0.7; }
  50%     { opacity: 1; }
}

/* ─── Input bar ───────────────────────────────────────────────────────────── */
#input-wrap {
  position: relative;
  z-index: 210;
  border-top: 1px solid var(--border);
  background: rgba(2,12,20,0.85);
  backdrop-filter: blur(10px);
  padding: 8px 12px;
  padding-bottom: max(8px, env(safe-area-inset-bottom));
  flex-shrink: 0;
}

#att-preview {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  padding: 5px 10px;
  border: 1px solid rgba(212,160,23,0.3);
  border-radius: 4px;
  background: var(--gold-dim);
  font-size: 11px;
  color: var(--gold);
  font-family: var(--mono);
}
#att-preview #btn-remove-att {
  background: transparent; border: none; color: var(--muted);
  cursor: pointer; font-size: 12px; padding: 0; margin-left: auto;
}

#input-row {
  display: flex;
  align-items: flex-end;
  gap: 6px;
}

#input {
  flex: 1;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 9px 12px;
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  resize: none;
  min-height: 40px;
  max-height: 120px;
  line-height: 1.4;
  outline: none;
  transition: border-color 0.2s;
}
#input:focus { border-color: var(--border-mid); }
#input::placeholder { color: var(--muted); }

#btn-attach, #btn-mic, #btn-send {
  width: 38px; height: 38px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s;
}
#btn-attach:hover { color: var(--text); border-color: var(--border-mid); }

#btn-mic:hover { color: var(--gold); border-color: rgba(212,160,23,0.3); }
#btn-mic.listening {
  color: var(--gold);
  background: var(--gold-dim);
  border-color: rgba(212,160,23,0.5);
  animation: micpulse 0.8s ease-in-out infinite alternate;
}
@keyframes micpulse {
  from { box-shadow: 0 0 0 0 rgba(212,160,23,0.4); }
  to   { box-shadow: 0 0 0 5px transparent; }
}

#btn-send {
  background: var(--accent-dim);
  border-color: var(--border-mid);
  color: var(--accent);
}
#btn-send:hover {
  background: rgba(0,180,216,0.2);
  border-color: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}

/* ─── Memory panel ────────────────────────────────────────────────────────── */
#panel-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 50;
}

#memory-panel {
  position: fixed;
  top: 0; right: 0;
  width: min(340px, 100vw);
  height: 100dvh;
  background: rgba(5,20,31,0.97);
  border-left: 1px solid var(--border-mid);
  z-index: 60;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: panelIn 0.2s ease;
}
@keyframes panelIn {
  from { transform: translateX(100%); }
  to   { transform: translateX(0); }
}

#memory-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 16px 12px;
  border-bottom: 1px solid var(--border);
}

.hud-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--accent);
}

#btn-close-memory {
  background: transparent; border: none;
  color: var(--muted); cursor: pointer;
  font-size: 14px; padding: 4px;
}

#memory-tabs {
  display: flex;
  padding: 10px 16px 0;
  gap: 2px;
  border-bottom: 1px solid var(--border);
}
.mem-tab {
  padding: 5px 12px;
  border: 1px solid transparent;
  border-bottom: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  border-radius: 3px 3px 0 0;
  transition: color 0.2s;
}
.mem-tab.active {
  border-color: var(--border-mid);
  background: var(--surface2);
  color: var(--accent);
}

#tab-memories, #tab-settings {
  flex: 1;
  overflow-y: auto;
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

#memory-list { display: flex; flex-direction: column; gap: 8px; flex: 1; }

.memory-entry {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent-mid);
  border-radius: 3px;
  padding: 9px 10px;
  position: relative;
}
.mem-topic {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 3px;
}
.mem-content { font-size: 12px; color: var(--text); line-height: 1.4; }
.mem-delete {
  position: absolute; top: 6px; right: 6px;
  background: transparent; border: none;
  color: #2a4a5a; cursor: pointer; font-size: 11px; padding: 2px 4px;
  border-radius: 3px; transition: color 0.2s;
}
.mem-delete:hover { color: var(--danger); }

.empty-state {
  color: var(--muted); font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.1em; text-align: center; padding: 20px 0;
}

.danger-btn {
  padding: 7px 12px;
  border: 1px solid var(--danger);
  border-radius: 3px;
  background: transparent;
  color: var(--danger);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  align-self: flex-start;
  transition: background 0.2s;
}
.danger-btn:hover { background: rgba(192,57,43,0.1); }

.setting-row {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-bottom: 4px;
}
.setting-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
}
.setting-hint { font-size: 11px; color: #2a4a5a; }

.toggle-wrap {
  position: relative;
  display: inline-block;
  width: 42px; height: 22px;
}
.toggle-wrap input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; inset: 0;
  background: #0a2030;
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s;
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px; height: 16px;
  left: 2px; top: 2px;
  background: var(--muted);
  border-radius: 50%;
  transition: transform 0.2s, background 0.2s;
}
.toggle-wrap input:checked + .toggle-slider { background: var(--accent-dim); border-color: var(--accent-mid); }
.toggle-wrap input:checked + .toggle-slider::before { transform: translateX(20px); background: var(--accent); }

.save-btn {
  padding: 8px 14px;
  background: var(--accent-dim);
  border: 1px solid var(--border-mid);
  border-radius: 3px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  cursor: pointer;
  align-self: flex-start;
  transition: background 0.2s, box-shadow 0.2s;
}
.save-btn:hover { background: rgba(0,180,216,0.2); box-shadow: 0 0 8px var(--accent-glow); }

/* ─── Entry animation ─────────────────────────────────────────────────────── */
#entry-anim {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: #000;
  overflow: hidden;
}

#matrix-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

#boot-lines {
  position: absolute;
  bottom: 15%;
  left: 50%;
  transform: translateX(-50%);
  width: min(600px, 90vw);
  font-family: var(--mono);
  font-size: clamp(12px, 1.4vw, 15px);
  color: var(--accent);
  text-shadow: 0 0 8px var(--accent);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.boot-line {
  opacity: 0;
  white-space: nowrap;
  overflow: hidden;
  width: 0;
  animation: bootType 0.4s ease forwards;
}

@keyframes bootType {
  to { opacity: 1; width: 100%; }
}

.boot-line.ok   { color: #00ff88; text-shadow: 0 0 8px #00ff88; }
.boot-line.warn { color: #ffcc00; text-shadow: 0 0 8px #ffcc00; }

#entry-anim.tearing {
  animation: tearAway 0.7s ease-in forwards;
}

@keyframes tearAway {
  0%   { opacity: 1; transform: scale(1)    skewX(0deg); filter: brightness(1) blur(0px); }
  40%  { opacity: 1; transform: scale(1.02) skewX(2deg); filter: brightness(2) blur(1px); }
  100% { opacity: 0; transform: scale(1.08) skewX(-1deg); filter: brightness(4) blur(12px); }
}

/* ─── Login overlay ───────────────────────────────────────────────────────── */
#login-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
}

#login-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  width: min(340px, 90vw);
}

#login-logo {
  font-family: var(--font-mono);
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-shadow: 0 0 20px var(--accent-glow);
}

#login-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--muted);
  margin-top: -10px;
  margin-bottom: 8px;
}

#login-input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: 0.15em;
  padding: 12px 16px;
  border-radius: 6px;
  text-align: center;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
}
#login-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

#login-btn {
  width: 100%;
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  padding: 11px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
}
#login-btn:hover {
  background: rgba(0,180,216,0.12);
  box-shadow: 0 0 12px var(--accent-glow);
}

#login-error {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: #e05252;
  min-height: 1em;
}

/* ─── Screen share panel ──────────────────────────────────────────────────── */
#screen-panel {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 70px; /* leave room for input bar */
  z-index: 200;
  background: #000;
  display: flex;
  flex-direction: column;
}
#screen-panel.hidden { display: none !important; }

#screen-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--accent);
  flex-shrink: 0;
}

#btn-stop-screen {
  background: transparent;
  border: 1px solid #e05252;
  color: #e05252;
  padding: 4px 14px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background 0.15s;
}
#btn-stop-screen:hover { background: rgba(224, 82, 82, 0.15); }

#screen-img {
  flex: 1;
  width: 100%;
  object-fit: contain;
  display: block;
}

/* ─── Utility ─────────────────────────────────────────────────────────────── */
.hidden { display: none !important; }