web/styles.css

:root {
  --bg: #050816;
  --bg-soft: rgba(10, 14, 30, 0.78);
  --panel: rgba(9, 13, 28, 0.74);
  --panel-strong: rgba(12, 17, 34, 0.88);
  --line: rgba(255, 255, 255, 0.12);
  --line-strong: rgba(255, 255, 255, 0.2);
  --text: #f6f1e8;
  --muted: #aeb7d3;
  --accent: #b19eef;
  --accent-2: #73d2ff;
  --accent-3: #ff8e53;
  --accent-shadow: 0 18px 50px rgba(177, 158, 239, 0.26);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
  --radius: 28px;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top, rgba(177, 158, 239, 0.2), transparent 30%),
    radial-gradient(circle at bottom right, rgba(115, 210, 255, 0.15), transparent 32%),
    linear-gradient(180deg, #040611 0%, #02040c 100%);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  overflow-x: hidden;
}

#bg-scene,
.bg-grid,
.bg-vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

#bg-scene {
  z-index: -3;
  width: 100%;
  height: 100%;
}

.bg-grid {
  z-index: -2;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(circle at center, black, transparent 80%);
}

.bg-vignette {
  z-index: -1;
  background:
    radial-gradient(circle at center, transparent 28%, rgba(1, 3, 10, 0.18) 55%, rgba(1, 3, 10, 0.82) 100%),
    linear-gradient(180deg, rgba(4, 6, 17, 0.08), rgba(4, 6, 17, 0.78));
}

.shell {
  width: min(1220px, calc(100vw - 28px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(12, 17, 34, 0.86), rgba(7, 10, 24, 0.76));
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: var(--shadow);
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 34%);
  pointer-events: none;
}

.panel-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.9fr);
  gap: 24px;
  padding: 32px;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-2);
  font-size: 0.78rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
}

.eyebrow.subtle {
  color: var(--muted);
}

h1,
h2 {
  margin: 0;
}

h1 {
  max-width: 10ch;
  font-size: clamp(3rem, 7vw, 6rem);
  line-height: 0.9;
  letter-spacing: -0.06em;
}

h2 {
  font-size: 1.2rem;
}

.lede,
.micro-copy,
label span,
.list-item span,
.log-entry,
small {
  color: var(--muted);
}

.lede {
  max-width: 62ch;
  margin: 20px 0 0;
  font-size: 1rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.hero-actions button {
  flex: 1 1 220px;
}

.hero-side {
  display: grid;
  gap: 16px;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.metric-card {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  padding: 20px;
  background: var(--bg-soft);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.metric-card span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.metric-card strong {
  display: block;
  font-size: 1.35rem;
}

.metric-strong {
  background: linear-gradient(135deg, rgba(177, 158, 239, 0.16), rgba(115, 210, 255, 0.12));
  box-shadow: var(--accent-shadow);
}

.control-panel,
.room-card {
  padding: 26px;
}

.control-panel {
  margin-top: 18px;
}

.panel-heading,
.dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.control-grid,
.dialogs,
.room-panel {
  display: grid;
  gap: 18px;
}

.control-grid {
  margin-top: 18px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.dialogs {
  margin-top: 18px;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.room-panel {
  margin-top: 18px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

label {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

input,
select,
button {
  font: inherit;
}

input,
.select-box select {
  width: 100%;
  min-height: 56px;
  padding: 15px 16px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

input::placeholder {
  color: rgba(174, 183, 211, 0.72);
}

.select-box {
  position: relative;
}

.select-box select {
  appearance: none;
  padding-right: 50px;
}

.select-box option {
  background: #091120;
  color: var(--text);
}

.select-arrow {
  position: absolute;
  top: 50%;
  right: 18px;
  width: 12px;
  height: 12px;
  transform: translateY(-60%) rotate(45deg);
  border-right: 2px solid rgba(255, 255, 255, 0.88);
  border-bottom: 2px solid rgba(255, 255, 255, 0.88);
  pointer-events: none;
}

input:focus,
.select-box select:focus,
button:focus {
  outline: none;
  border-color: rgba(177, 158, 239, 0.55);
  box-shadow: 0 0 0 4px rgba(177, 158, 239, 0.16);
}

button {
  min-height: 56px;
  padding: 14px 22px;
  border: none;
  border-radius: 999px;
  color: var(--text);
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease, opacity 0.16s ease;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.primary {
  color: #100a22;
  background: linear-gradient(135deg, #d7c8ff, var(--accent));
  box-shadow: 0 18px 44px rgba(177, 158, 239, 0.34);
}

.secondary {
  color: #05101b;
  background: linear-gradient(135deg, #8ee7ff, #5eb6ff);
  box-shadow: 0 18px 44px rgba(94, 182, 255, 0.3);
}

.ghost,
.toggle-button {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.toggle-button.active {
  background: rgba(177, 158, 239, 0.16);
  border-color: rgba(177, 158, 239, 0.4);
}

.dialog-card {
  position: relative;
  overflow: hidden;
  min-height: 300px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(12, 17, 34, 0.86), rgba(9, 12, 27, 0.76));
  backdrop-filter: blur(22px);
  box-shadow: var(--shadow);
}

.dialog-card::before {
  content: "";
  position: absolute;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  filter: blur(30px);
  opacity: 0.45;
}

.left-card::before {
  top: -60px;
  right: -30px;
  background: radial-gradient(circle, rgba(177, 158, 239, 0.55), transparent 70%);
}

.right-card::before {
  bottom: -70px;
  left: -20px;
  background: radial-gradient(circle, rgba(115, 210, 255, 0.45), transparent 70%);
}

.dialog-card p {
  position: relative;
  z-index: 1;
  margin: 20px 0 0;
  min-height: 180px;
  color: #fff8f0;
  font-size: 1.05rem;
  line-height: 1.85;
}

.list-block,
.log {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 320px;
  overflow: auto;
}

.list-item,
.log-entry {
  padding: 13px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.list-item strong,
.list-item span {
  display: block;
}

.list-item span + span {
  margin-top: 4px;
}

.log-entry {
  font-size: 0.92rem;
}

@media (max-width: 980px) {
  .panel-hero {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100vw - 16px, 1220px);
    padding-top: 16px;
  }

  .panel-hero,
  .control-panel,
  .room-card,
  .dialog-card {
    padding: 18px;
  }

  .metric-row {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: 9ch;
    font-size: clamp(2.5rem, 13vw, 4.2rem);
  }
}