/* BuildaQ Cipher Chat styling */
:root {
  --bg: #0b1020;
  --bg-panel: rgba(17, 21, 39, 0.75);
  --bg-strong: rgba(255, 255, 255, 0.06);
  --text: #e8ecff;
  --muted: #9fb0d3;
  --accent: #5b8bff;
  --accent-2: #7af0c9;
  --danger: #ff6b7a;
  --radius: 16px;
  --shadow: 0 16px 50px rgba(0, 0, 0, 0.25);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Manrope', 'Space Grotesk', system-ui, -apple-system, sans-serif;
  background: radial-gradient(circle at 20% 20%, rgba(90, 140, 255, 0.08), transparent 30%),
              radial-gradient(circle at 80% 10%, rgba(122, 240, 201, 0.12), transparent 30%),
              linear-gradient(135deg, #0b1020, #0a0d18 40%, #0f162c);
  color: var(--text);
  min-height: 100vh;
  padding: 32px clamp(14px, 4vw, 40px);
}

.bg-accent {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 70% 60%, rgba(122, 240, 201, 0.12), transparent 35%);
  filter: blur(90px);
  opacity: 0.8;
  z-index: 0;
}

.topbar {
  position: sticky;
  top: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  background: rgba(15, 19, 36, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  z-index: 2;
  backdrop-filter: blur(6px);
  margin-bottom: 24px;
}

.brand {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: center;
}

.brand__dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 12px rgba(91, 139, 255, 0.6);
}

h1, h2 {
  margin: 4px 0 0;
  font-family: 'Space Grotesk', 'Manrope', sans-serif;
  letter-spacing: -0.02em;
}

.eyebrow {
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--muted);
  margin: 0;
}

.lock-state {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--bg-strong);
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-weight: 600;
}

.lock-state__icon {
  font-size: 18px;
}

.layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 2fr minmax(280px, 360px);
  gap: 18px;
  align-items: start;
}

@media (max-width: 960px) {
  .layout {
    grid-template-columns: 1fr;
  }
}

.panel {
  background: var(--bg-panel);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--shadow);
  padding: 20px;
  backdrop-filter: blur(6px);
}

.panel__head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
}

.panel__head h2 {
  margin: 6px 0 0;
}

.panel--messages {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
}

.messages {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 8px 0 12px;
  overflow-y: auto;
}

.bubble {
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  border-radius: calc(var(--radius) - 4px);
  padding: 12px 14px;
  position: relative;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.bubble:hover {
  border-color: rgba(122, 240, 201, 0.4);
}

.bubble__meta {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 6px;
}

.bubble__body {
  font-size: 15px;
  line-height: 1.5;
  white-space: pre-wrap;
}

.bubble__cipher {
  margin-top: 10px;
  padding: 8px;
  background: var(--bg-strong);
  border-radius: 10px;
  font-family: "Space Grotesk", monospace;
  font-size: 12px;
  color: var(--muted);
  word-break: break-all;
}

.bubble--locked .bubble__body {
  color: #d2d8ed;
}

.bubble--locked .bubble__cipher {
  border: 1px dashed rgba(255, 255, 255, 0.12);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 14px;
}

input, textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 12px 14px;
  color: var(--text);
  font-size: 15px;
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

input:focus, textarea:focus {
  outline: none;
  border-color: rgba(91, 139, 255, 0.6);
  box-shadow: 0 0 0 4px rgba(91, 139, 255, 0.15);
}

.composer {
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 12px;
}

.composer__footer {
  margin-top: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

button {
  cursor: pointer;
  border: none;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.primary-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0b0f1d;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 12px 30px rgba(91, 139, 255, 0.25);
  transition: transform 0.1s ease, box-shadow 0.2s ease;
}

.primary-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 35px rgba(91, 139, 255, 0.35);
}

.primary-btn--ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border: 1px solid rgba(91, 139, 255, 0.35);
  box-shadow: none;
}

.secondary-btn, .ghost-btn {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 11px 14px;
  border-radius: 12px;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.secondary-btn:hover, .ghost-btn:hover {
  border-color: rgba(122, 240, 201, 0.5);
}

.secondary-btn--ghost {
  background: rgba(255, 255, 255, 0.02);
}

.hint {
  color: var(--muted);
  font-size: 13px;
}

.divider {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin: 12px 0;
}

.stack {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

@media (max-width: 540px) {
  .stack { grid-template-columns: 1fr; }
  .composer__footer { flex-direction: column; align-items: stretch; }
}

@media (max-width: 720px) {
  body {
    padding: 18px 14px 28px;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    position: relative;
  }

  .lock-state {
    width: 100%;
    justify-content: center;
  }

  .panel {
    padding: 16px;
  }

  h1 {
    font-size: 22px;
    line-height: 1.25;
  }

  h2 {
    font-size: 18px;
  }

  input, textarea, button {
    font-size: 15px;
  }

  textarea {
    min-height: 120px;
  }

  .panel__head {
    align-items: flex-start;
    flex-direction: column;
  }

  .composer__footer {
    align-items: flex-start;
  }

  .lock-state__label {
    text-align: center;
  }
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 10px;
  font-size: 12px;
  background: rgba(255, 255, 255, 0.05);
}

.badge--danger {
  color: #ffd7de;
  background: rgba(255, 107, 122, 0.12);
  border: 1px solid rgba(255, 107, 122, 0.25);
}

.badge--ok {
  color: #c4f7e4;
  background: rgba(122, 240, 201, 0.12);
  border: 1px solid rgba(122, 240, 201, 0.25);
}

.badge--ghost {
  color: var(--muted);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}