:root {
  --bg: #f4f7fa;
  --bg-alt: #ffffff;
  --panel: #ffffff;
  --text: #10151c;
  --text-dim: #5b6b7a;
  --border: #d7e0e8;
  --accent: #0891b2;
  --accent-2: #2563eb;
  --accent-text: #ffffff;
  --bubble-user: #2563eb;
  --bubble-user-text: #ffffff;
  --bubble-assistant: #eef2f6;
  --bubble-assistant-text: #10151c;
  --danger: #d33;
  --ok: #16a34a;
  --warn: #d97706;
  --glow: 0 0 0 rgba(0, 0, 0, 0);
  --grid-line: rgba(8, 145, 178, 0.06);
  --font-display: "Orbitron", sans-serif;
  --font-body: "Rajdhani", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

html[data-theme="dark"] {
  --bg: #05080d;
  --bg-alt: #0b1220;
  --panel: rgba(14, 22, 34, 0.72);
  --text: #dff6ff;
  --text-dim: #7f97a8;
  --border: rgba(0, 217, 255, 0.22);
  --accent: #00e5ff;
  --accent-2: #7b5cff;
  --accent-text: #04141a;
  --bubble-user: rgba(123, 92, 255, 0.28);
  --bubble-user-text: #ecebff;
  --bubble-assistant: rgba(0, 229, 255, 0.08);
  --bubble-assistant-text: #dff6ff;
  --danger: #ff5c7a;
  --ok: #3ddc84;
  --warn: #ffb020;
  --glow: 0 0 18px rgba(0, 229, 255, 0.35);
  --grid-line: rgba(0, 229, 255, 0.05);
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  position: relative;
  overflow-x: hidden;
}

/* ---------- Ambient HUD background ---------- */

.hud-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 42px 42px;
}
.hud-glow {
  position: fixed;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 90vw;
  height: 60vh;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.16) 0%, transparent 65%);
  opacity: 0;
  transition: opacity 0.4s ease;
}
html[data-theme="dark"] .hud-glow { opacity: 1; }

.screen { position: relative; z-index: 1; min-height: 100vh; }
[hidden] { display: none !important; }

button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.02em;
}
input, select {
  background: var(--bg-alt);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.55rem 0.75rem;
  font-size: 16px; /* must stay >=16px: mobile Safari/Chrome zoom in on focus below this */
  font-family: var(--font-body);
}
input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--accent-text);
  padding: 0.6rem 1.2rem;
  box-shadow: var(--glow);
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
}
.btn-primary:hover { filter: brightness(1.1); }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 0.5rem 0.8rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.btn-ghost:hover { color: var(--text); border-color: var(--accent); }

.btn-icon {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--accent);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  font-size: 1.1rem;
  line-height: 1;
}
.btn-icon:hover { box-shadow: var(--glow); }

.brand-title {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.12em;
  margin: 0;
  text-shadow: 0 0 16px color-mix(in srgb, var(--accent) 55%, transparent);
  color: var(--text);
}
.brand-title.small { font-size: 1rem; }
.brand-sub {
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  color: var(--text-dim);
  text-transform: uppercase;
}

/* ---------- Orb (shared: login + voice status widget) ---------- */

.brand-orb, .orb-btn, .orb-mini {
  position: relative;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.brand-orb { width: 96px; height: 96px; margin: 0 auto; }
.orb-btn { width: 64px; height: 64px; background: transparent; border: none; margin: 0 auto; }
.orb-mini { width: 34px; height: 34px; flex-shrink: 0; }

.orb-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid transparent;
}
.orb-ring.ring-1 {
  border-top-color: var(--accent);
  border-right-color: color-mix(in srgb, var(--accent) 40%, transparent);
  animation: spin 4s linear infinite;
}
.orb-ring.ring-2 {
  inset: 8px;
  border-bottom-color: var(--accent-2);
  border-left-color: color-mix(in srgb, var(--accent-2) 40%, transparent);
  animation: spin-reverse 3s linear infinite;
}
.orb-mini .orb-ring.ring-2 { inset: 5px; }

.orb-core {
  position: absolute;
  inset: 22px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--accent), var(--accent-2) 75%);
  box-shadow: 0 0 24px color-mix(in srgb, var(--accent) 60%, transparent);
  animation: pulse-core 2.6s ease-in-out infinite;
}
.orb-btn .orb-core { inset: 18px; }
.orb-mini .orb-core { inset: 10px; }

.orb-bars {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  opacity: 0;
  transition: opacity 0.2s ease;
}
.orb-bars i {
  display: block;
  width: 3px;
  height: 14px;
  border-radius: 2px;
  background: var(--accent-text);
  transform: scaleY(0.3);
  transform-origin: center;
  transition: transform 0.08s ease;
}
.orb-btn.listening .orb-bars { opacity: 1; }
.orb-btn.listening .orb-ring.ring-1 { animation-duration: 1.2s; }
.orb-btn.listening .orb-ring.ring-2 { animation-duration: 0.9s; }
.orb-btn.listening .orb-core { animation: pulse-core-active 0.9s ease-in-out infinite; }
.orb-btn.speaking .orb-core { animation: pulse-core-active 0.6s ease-in-out infinite; }
.orb-btn.thinking .orb-ring.ring-1 { animation-duration: 0.6s; }
.orb-btn.thinking .orb-ring.ring-2 { animation-duration: 0.45s; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes spin-reverse { to { transform: rotate(-360deg); } }
@keyframes pulse-core {
  0%, 100% { transform: scale(0.94); opacity: 0.85; }
  50% { transform: scale(1.04); opacity: 1; }
}
@keyframes pulse-core-active {
  0%, 100% { transform: scale(1); box-shadow: 0 0 18px color-mix(in srgb, var(--accent) 55%, transparent); }
  50% { transform: scale(1.14); box-shadow: 0 0 34px color-mix(in srgb, var(--accent) 80%, transparent); }
}

.orb-status {
  text-align: center;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-dim);
}

/* ---------- Login ---------- */

#login-screen { display: flex; align-items: center; justify-content: center; padding: 16px; }
.login-card {
  width: min(380px, 100%);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.2rem 2rem;
  backdrop-filter: blur(14px);
  box-shadow: var(--glow);
  text-align: center;
}
.login-card .brand-title { font-size: 1.5rem; margin-top: 0.5rem; }
.subtitle { margin: 0 0 0.5rem; color: var(--text-dim); font-size: 0.8rem; letter-spacing: 0.15em; text-transform: uppercase; }
.login-card label {
  display: flex; flex-direction: column; gap: 0.3rem;
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-dim); text-align: left;
}
.error { color: var(--danger); font-size: 0.85rem; margin: 0; }

/* ---------- App shell ---------- */

#app-screen { display: flex; height: 100vh; }

#nav-rail {
  width: 250px;
  min-width: 210px;
  border-right: 1px solid var(--border);
  background: var(--panel);
  backdrop-filter: blur(14px);
  display: flex;
  flex-direction: column;
  padding: 16px 14px;
  gap: 14px;
  overflow-y: auto;
}
.nav-brand { display: flex; align-items: center; gap: 10px; }

#nav-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.nav-item {
  padding: 0.55rem 0.7rem;
  border-radius: 8px;
  font-size: 0.85rem;
  cursor: pointer;
  color: var(--text-dim);
  border-left: 2px solid transparent;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-item:hover { color: var(--text); background: color-mix(in srgb, var(--accent) 8%, transparent); }
.nav-item.active {
  color: var(--text);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border-left-color: var(--accent);
}
.nav-item.soon { opacity: 0.6; }
.nav-badge {
  background: var(--accent-2);
  color: #fff;
  border-radius: 999px;
  font-size: 0.68rem;
  padding: 0.05rem 0.4rem;
}

.voice-status-card {
  margin-top: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: color-mix(in srgb, var(--accent) 4%, transparent);
}
.voice-status-label {
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.nav-footer { display: flex; flex-direction: column; gap: 6px; }

/* ---------- Main content / views ---------- */

#main-content { flex: 1; min-width: 0; overflow-y: auto; display: flex; flex-direction: column; }
.view { flex: 1; display: flex; flex-direction: column; min-height: 0; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  flex-wrap: wrap;
}
.topbar strong { color: var(--text); }
.status-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 8px var(--ok);
  margin-right: 6px;
}
.topbar-clock {
  font-family: var(--font-display);
  color: var(--accent);
  font-size: 1rem;
  letter-spacing: 0.08em;
}
.topbar-user { text-align: right; }

.dash-grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 20px 24px;
  align-content: start;
}
.dash-grid .span-2 { grid-column: span 2; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  backdrop-filter: blur(10px);
  grid-column: span 1;
  min-width: 0;
}
.panel h3 {
  margin: 0 0 10px;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.panel-header-row { display: flex; align-items: center; justify-content: space-between; }
.panel-header-row h3 { margin: 0; }
.panel-tag {
  font-size: 0.68rem;
  color: var(--accent);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.1rem 0.5rem;
}

@media (min-width: 1300px) {
  .panel:nth-child(2) { grid-column: span 2; }
}

/* Core overview tiles */
.tile-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.tile-list li {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.85rem; padding: 4px 0;
}
.tile-list .tile-name { color: var(--text); }
.tile-list .tile-value { color: var(--accent); font-size: 0.78rem; }

/* Hero */
.hero-panel { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; padding: 24px 16px; }
.hero-orb { position: relative; width: 120px; height: 120px; }
.hero-ring {
  position: absolute; inset: 0; border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
}
.hero-ring.r1 { animation: spin 12s linear infinite; }
.hero-ring.r2 { inset: 14px; border-color: color-mix(in srgb, var(--accent-2) 45%, transparent); animation: spin-reverse 9s linear infinite; }
.hero-ring.r3 { inset: 28px; animation: spin 6s linear infinite; }
.hero-core {
  position: absolute; inset: 40px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--accent), var(--accent-2) 75%);
  box-shadow: 0 0 30px color-mix(in srgb, var(--accent) 65%, transparent);
  animation: pulse-core 3s ease-in-out infinite;
}
.hero-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: 0.15em;
  color: var(--text);
  text-shadow: 0 0 14px color-mix(in srgb, var(--accent) 55%, transparent);
}
.hero-sub { font-size: 0.7rem; letter-spacing: 0.14em; color: var(--text-dim); }

/* Feed */
.feed-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; max-height: 220px; overflow-y: auto; }
.feed-list li { font-size: 0.82rem; border-left: 2px solid var(--border); padding-left: 8px; }
.feed-list li.warn { border-left-color: var(--warn); }
.feed-list li.ok { border-left-color: var(--ok); }
.feed-list .feed-tag { display: block; font-size: 0.65rem; text-transform: uppercase; color: var(--text-dim); letter-spacing: 0.06em; }

/* Agent grid */
.agent-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.agent-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.agent-card .agent-name { font-size: 0.85rem; color: var(--text); font-weight: 600; }
.agent-card .agent-status { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; }
.agent-card.active .agent-status { color: var(--ok); }
.agent-card.inactive { opacity: 0.55; }
.agent-card.inactive .agent-status { color: var(--text-dim); }
.agent-card .agent-desc { font-size: 0.72rem; color: var(--text-dim); }
.agent-wave { display: flex; gap: 2px; height: 12px; align-items: flex-end; margin-top: 2px; }
.agent-wave span { width: 3px; background: var(--accent); border-radius: 1px; animation: wave 1s ease-in-out infinite; }
.agent-wave span:nth-child(2) { animation-delay: 0.1s; }
.agent-wave span:nth-child(3) { animation-delay: 0.2s; }
.agent-wave span:nth-child(4) { animation-delay: 0.3s; }
.agent-wave span:nth-child(5) { animation-delay: 0.4s; }
@keyframes wave { 0%, 100% { height: 3px; } 50% { height: 12px; } }

/* Quick commands */
.quick-list { display: flex; flex-direction: column; gap: 8px; }
.quick-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  text-align: left;
  padding: 0.6rem 0.8rem;
  font-size: 0.85rem;
}
.quick-btn:hover { border-color: var(--accent); box-shadow: var(--glow); }

/* Gauges */
.gauge-row { display: flex; justify-content: space-around; gap: 10px; }
.gauge { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.gauge-ring {
  width: 64px; height: 64px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: conic-gradient(var(--accent) calc(var(--pct, 0) * 1%), var(--border) 0);
  font-size: 0.78rem;
  color: var(--text);
  position: relative;
}
.gauge-ring::before {
  content: "";
  position: absolute; inset: 6px;
  border-radius: 50%;
  background: var(--panel);
}
.gauge-ring span { position: relative; z-index: 1; }
.gauge-label { font-size: 0.68rem; text-transform: uppercase; color: var(--text-dim); letter-spacing: 0.06em; }

/* Stat list (memory insights) */
.stat-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.stat-list li { display: flex; justify-content: space-between; font-size: 0.85rem; }
.stat-list .stat-value { color: var(--accent); font-family: var(--font-display); }

/* Provider grid */
.provider-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.provider-chip {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 8px;
  font-size: 0.78rem;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.provider-chip .provider-name { color: var(--text); }
.provider-chip .provider-state { font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.05em; }
.provider-chip.connected { border-color: color-mix(in srgb, var(--ok) 50%, var(--border)); }
.provider-chip.connected .provider-state { color: var(--ok); }
.provider-chip.not-linked .provider-state { color: var(--text-dim); }

/* Bottom bar */
.bottombar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 24px;
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-dim);
  flex-wrap: wrap;
}

/* ---------- Conversations view ---------- */

#view-conversations { flex-direction: row; }

.convo-sidebar {
  width: 260px;
  min-width: 200px;
  border-right: 1px solid var(--border);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.convo-sidebar-header { display: flex; align-items: center; justify-content: space-between; }
.convo-sidebar-header h2 { margin: 0; font-size: 1rem; }

#convo-list { list-style: none; margin: 0; padding: 0; overflow-y: auto; flex: 1; display: flex; flex-direction: column; gap: 4px; }
#convo-list li {
  padding: 0.55rem 0.7rem; border-radius: 8px; cursor: pointer; font-size: 0.9rem;
  display: flex; justify-content: space-between; align-items: center; gap: 6px;
  border-left: 2px solid transparent;
}
#convo-list li:hover { background: color-mix(in srgb, var(--accent) 8%, transparent); }
#convo-list li.active { background: color-mix(in srgb, var(--accent) 14%, transparent); border-left-color: var(--accent); color: var(--text); }
#convo-list li .convo-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
#convo-list li .convo-delete { background: transparent; color: inherit; padding: 0 4px; font-size: 0.8rem; opacity: 0.5; }
#convo-list li .convo-delete:hover { opacity: 1; color: var(--danger); }
.usage-line { font-size: 0.7rem; color: var(--text-dim); border-top: 1px solid var(--border); padding-top: 8px; }

.chat-area { flex: 1; display: flex; flex-direction: column; min-width: 0; }
#messages { flex: 1; overflow-y: auto; padding: 24px; display: flex; flex-direction: column; gap: 14px; }

.bubble {
  max-width: 70ch; padding: 0.65rem 1rem; border-radius: 14px; line-height: 1.45;
  white-space: pre-wrap; border: 1px solid transparent;
}
.bubble.user { align-self: flex-end; background: var(--bubble-user); color: var(--bubble-user-text); border-color: color-mix(in srgb, var(--accent-2) 30%, transparent); }
.bubble.assistant {
  align-self: flex-start; background: var(--bubble-assistant); color: var(--bubble-assistant-text);
  border-color: var(--border); display: flex; gap: 8px; align-items: flex-end;
}
.bubble .replay-btn { background: transparent; color: var(--accent); opacity: 0.7; padding: 0 4px; font-size: 0.9rem; flex-shrink: 0; }
.bubble .replay-btn:hover { opacity: 1; }

.typing-dots span {
  display: inline-block; width: 5px; height: 5px; margin-right: 3px; border-radius: 50%;
  background: var(--accent); animation: dot-pulse 1.2s infinite ease-in-out;
}
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes dot-pulse { 0%, 80%, 100% { opacity: 0.25; transform: scale(0.8); } 40% { opacity: 1; transform: scale(1.1); } }

.composer-wrap { border-top: 1px solid var(--border); padding: 10px 20px 16px; display: flex; flex-direction: column; gap: 6px; }
#composer { display: flex; align-items: center; gap: 12px; }
#text-input { flex: 1; }

/* ---------- Tasks view ---------- */

.view-header { padding: 20px 24px 0; }
.task-form { display: flex; gap: 10px; padding: 16px 24px; }
#task-input { flex: 1; }
.task-list { list-style: none; margin: 0; padding: 0 24px; display: flex; flex-direction: column; gap: 8px; overflow-y: auto; }
.task-list li {
  display: flex; align-items: center; gap: 10px;
  border: 1px solid var(--border); border-radius: 10px; padding: 10px 14px;
  background: var(--panel);
}
.task-list li.done .task-title { text-decoration: line-through; color: var(--text-dim); }
.task-list .task-title { flex: 1; }
.task-list .task-delete { background: transparent; color: var(--text-dim); }
.task-list .task-delete:hover { color: var(--danger); }

.soon-text { padding: 0 24px; color: var(--text-dim); }

/* ---------- Overlays (settings + briefing) ---------- */

.overlay {
  position: fixed; inset: 0; z-index: 10; background: rgba(0, 0, 0, 0.55);
  display: flex; align-items: center; justify-content: center; padding: 16px;
}
.settings-card {
  width: min(420px, 100%);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  backdrop-filter: blur(16px);
  box-shadow: var(--glow);
}
.settings-card h2 { margin: 0; font-family: var(--font-display); font-size: 1.1rem; letter-spacing: 0.06em; color: var(--text); }
.settings-card label { display: flex; flex-direction: column; gap: 0.35rem; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-dim); }
.checkbox-row { flex-direction: row !important; align-items: center; gap: 0.5rem !important; }
.settings-actions { display: flex; justify-content: flex-end; }
.briefing-text { color: var(--text); line-height: 1.5; white-space: pre-wrap; }

.nav-toggle-btn {
  display: none;
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 20;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 1.2rem;
  backdrop-filter: blur(10px);
}
.nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 4;
  background: rgba(0, 0, 0, 0.55);
}
.nav-backdrop.visible { display: block; }

@media (max-width: 900px) {
  .dash-grid { grid-template-columns: repeat(2, 1fr); }
  .dash-grid .span-2 { grid-column: span 2; }
  .agent-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 700px) {
  .nav-toggle-btn { display: flex; }
  #nav-rail {
    position: fixed;
    z-index: 6;
    top: 0;
    left: 0;
    height: 100vh;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }
  #nav-rail.open { transform: translateX(0); }
  #main-content { width: 100%; }
  .topbar { padding-right: 60px; }
  .dash-grid { grid-template-columns: 1fr; }
  .dash-grid .span-2 { grid-column: span 1; }
  #view-conversations { flex-direction: column; }
  .convo-sidebar { width: 100%; max-height: 160px; border-right: none; border-bottom: 1px solid var(--border); }
}