:root {
  --bg: #07111f;
  --panel: rgba(12, 22, 40, 0.84);
  --line: rgba(150, 181, 255, 0.18);
  --text: #eff4ff;
  --muted: #8fa6cf;
  --accent: #ff8a3d;
  --accent-soft: rgba(255, 138, 61, 0.18);
  --shadow: 0 20px 70px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Be Vietnam Pro", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(111, 124, 255, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(53, 201, 142, 0.12), transparent 24%),
    linear-gradient(180deg, #0b1426 0%, #07111f 100%);
}

.page-shell {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.hidden {
  display: none !important;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  margin-top: 10px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(8, 16, 30, 0.74);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--accent), #ffc24f);
  color: #1b120c;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
}

.brand-name,
.brand-sub,
.eyebrow,
.hero-text,
.panel-kicker,
.section-label,
.suggestions p,
.response-head,
.meta-card span,
.version-card small,
.version-badge {
  margin: 0;
}

.brand-name {
  font-size: 0.98rem;
  font-weight: 700;
}

.brand-sub {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.86rem;
}

.topnav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.topnav a,
.topbar-logout {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
}

.topnav a:hover,
.topbar-logout:hover {
  color: var(--text);
}

.topbar-logout {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  cursor: pointer;
  font: inherit;
  padding: 10px 14px;
}

.login-hero,
.hero-grid,
.public-grid {
  display: grid;
  gap: 24px;
  margin-top: 18px;
}

.login-hero {
  grid-template-columns: 1fr;
}

.hero-grid {
  grid-template-columns: 1.25fr 0.75fr;
}

.public-grid {
  grid-template-columns: 1.05fr 0.95fr;
}

.hero-copy,
.hero-panel,
.chat-box,
.login-panel,
.login-copy {
  border: 1px solid var(--line);
  border-radius: 30px;
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.hero-copy,
.login-copy,
.login-panel,
.hero-panel,
.chat-box {
  padding: 30px;
}

.login-panel {
  max-width: 100%;
  padding: 24px;
}

.login-panel h2 {
  margin-bottom: 8px;
}

.login-copy {
  background:
    radial-gradient(circle at top right, rgba(255, 138, 61, 0.16), transparent 26%),
    rgba(12, 22, 40, 0.84);
}

.eyebrow,
.panel-kicker,
.section-label,
.suggestions p,
.response-head,
.meta-card span {
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-copy h1,
.login-copy h1 {
  margin: 14px 0;
  font-size: clamp(2.3rem, 4.4vw, 4.5rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.hero-copy h1 span,
.login-copy h1 span {
  color: var(--accent);
}

.hero-text {
  max-width: 720px;
  color: #bed0ef;
  font-size: 1.03rem;
  line-height: 1.75;
}

.audience-preview,
.hero-meta {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.audience-preview {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.hero-meta {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.audience-card,
.workspace-headline,
.login-hint,
.login-state,
.meta-card,
.public-status {
  border-radius: 22px;
  padding: 18px;
  border: 1px solid var(--line);
  background: rgba(10, 19, 35, 0.84);
}

.audience-card span,
.workspace-headline span {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.audience-card strong,
.workspace-headline strong,
.meta-card strong {
  display: block;
  margin-top: 10px;
  font-size: 1.15rem;
}

.audience-card small {
  display: block;
  margin-top: 8px;
  color: #c8d7f2;
  line-height: 1.5;
}

.login-panel,
.hero-panel {
  background: linear-gradient(180deg, rgba(18, 35, 61, 0.94), rgba(10, 18, 33, 0.96));
}

.compact-workspace {
  margin-top: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(8, 16, 30, 0.76);
  box-shadow: var(--shadow);
}

.compact-workspace-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.compact-workspace-head strong,
.compact-workspace-head small {
  display: block;
}

.compact-workspace-head strong {
  margin-top: 6px;
  font-size: 1rem;
}

.compact-workspace-head small {
  margin-top: 4px;
  color: var(--muted);
}

.compact-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.88rem;
}

.compact-meta span {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(10, 19, 35, 0.74);
}

.public-panel {
  background: linear-gradient(180deg, rgba(12, 44, 68, 0.92), rgba(8, 23, 38, 0.96));
}

.public-copy {
  background:
    radial-gradient(circle at top left, rgba(45, 195, 255, 0.14), transparent 28%),
    rgba(12, 22, 40, 0.84);
}

.login-panel h2,
.hero-panel h2 {
  margin: 10px 0 12px;
  font-size: 2rem;
}

.login-note,
.hero-panel p {
  color: #d4e1f8;
  line-height: 1.75;
}

.login-form,
.chat-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  margin-top: 22px;
}

.register-form {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 12px;
  margin-top: 12px;
}

.admin-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 16px;
  margin-top: 22px;
}

.admin-form,
.admin-upload-form {
  display: grid;
  gap: 12px;
}

.oauth-actions {
  display: flex;
  gap: 12px;
  margin-top: 22px;
  flex-wrap: wrap;
}

.otp-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.88rem;
}

.otp-divider::before,
.otp-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.login-form input,
.register-form input,
.admin-form input,
.admin-upload-form input,
.chat-form textarea {
  border-radius: 20px;
  border: 1px solid var(--line);
  background: rgba(9, 17, 31, 0.95);
  color: var(--text);
  font: inherit;
}

.login-form input {
  padding: 16px 18px;
}

.register-form input {
  padding: 16px 18px;
}

.admin-form input,
.admin-upload-form input {
  padding: 16px 18px;
}

.chat-form textarea {
  width: 100%;
  min-height: 94px;
  resize: vertical;
  padding: 18px 20px;
  line-height: 1.7;
}

.login-form button,
.register-form button,
.admin-form button,
.admin-upload-form button,
.chat-form button,
.oauth-button,
.secondary-button {
  border: 0;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--accent), #ffb14a);
  color: #120d09;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  padding: 16px 22px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.login-form button:disabled,
.register-form button:disabled,
.chat-form button:disabled {
  opacity: 0.7;
  cursor: wait;
}

.secondary-button {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  border: 1px solid var(--line);
}

.oauth-button.disabled {
  opacity: 0.55;
  pointer-events: none;
}

.microsoft-button {
  background: linear-gradient(135deg, #2563eb, #38bdf8);
  color: #f8fbff;
}

.login-hint,
.login-state,
.workspace-headline {
  margin-top: 14px;
}

.login-hint span,
.login-state {
  color: var(--muted);
}

.login-hint strong {
  margin-left: 8px;
  color: var(--text);
}

.version-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 0;
}

.version-grid-inline {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
}

.version-card {
  text-align: left;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(19, 34, 58, 0.85);
  color: var(--text);
  padding: 14px;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.version-grid-inline .version-card {
  min-width: 72px;
  padding: 8px 12px;
  border-radius: 999px;
  text-align: center;
}

.version-card:hover,
.version-card.active {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(30, 49, 80, 0.96);
}

.version-card.active {
  border-color: color-mix(in srgb, var(--accent) 72%, #ffffff 12%);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 62%, #0f1b30), color-mix(in srgb, var(--accent) 28%, #172641)),
    rgba(30, 49, 80, 0.96);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 28%, transparent), 0 10px 28px color-mix(in srgb, var(--accent) 26%, transparent);
  color: #ffffff;
}

.version-card strong {
  display: block;
  font-size: 1.2rem;
  margin: 8px 0 4px;
}

.version-grid-inline .version-card strong {
  display: inline;
  font-size: 0.95rem;
  margin: 0;
}

.version-card small {
  display: block;
  color: #c8d7f2;
  line-height: 1.5;
}

.version-badge {
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: #d9e5fb;
}

.version-grid-inline .version-badge {
  display: none;
}

.orb {
  position: absolute;
  width: 180px;
  height: 180px;
  right: -42px;
  top: -40px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 138, 61, 0.9), rgba(255, 138, 61, 0.05) 68%, transparent 70%);
  filter: blur(6px);
}

.public-orb {
  background: radial-gradient(circle, rgba(45, 195, 255, 0.82), rgba(45, 195, 255, 0.06) 68%, transparent 70%);
}

.flow-list,
.public-feature-list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.flow-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.flow-item span,
.active-pill {
  display: inline-grid;
  place-items: center;
  min-width: 38px;
  height: 38px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
}

.public-badge-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.chat-section {
  margin-top: 16px;
}

#chat .chat-box {
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - 150px);
}

#chat .chat-header {
  order: 1;
}

#chat .response-panel {
  order: 2;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 320px;
}

#chat .suggestions {
  order: 3;
}

#chat .chat-form {
  order: 4;
}

.chat-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
}

.chat-version-area {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.chat-header h3 {
  margin: 8px 0 0;
  font-size: 1.55rem;
}

.suggestions {
  margin-top: 18px;
}

.suggestion-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.suggestion-chip {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 14px;
  background: rgba(18, 31, 54, 0.92);
  color: #d7e5fb;
  cursor: pointer;
  font: inherit;
}

.response-panel {
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(8, 16, 30, 0.88);
  overflow: hidden;
}

.response-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
}

.response-loading {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  color: #d9e7ff;
  border-bottom: 1px solid rgba(150, 181, 255, 0.12);
  background: linear-gradient(90deg, rgba(255, 138, 61, 0.1), rgba(37, 99, 235, 0.08));
}

.loader-dots {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.loader-dots i {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
  animation: loading-bounce 900ms ease-in-out infinite;
}

.loader-dots i:nth-child(2) {
  animation-delay: 130ms;
}

.loader-dots i:nth-child(3) {
  animation-delay: 260ms;
}

@keyframes loading-bounce {
  0%,
  80%,
  100% {
    transform: translateY(0);
    opacity: 0.45;
  }

  40% {
    transform: translateY(-5px);
    opacity: 1;
  }
}

.response-output {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow-y: auto;
  padding: 22px 18px;
  min-height: 150px;
  color: #ebf2ff;
  line-height: 1.8;
}

.chat-message {
  max-width: min(860px, 92%);
}

.chat-message-user {
  align-self: flex-end;
}

.chat-message-assistant,
.chat-message-system {
  align-self: flex-start;
}

.chat-message-label {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.chat-message-body {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(18, 31, 54, 0.9);
  color: #ebf2ff;
  white-space: pre-wrap;
}

.chat-message-user .chat-message-body {
  border-color: color-mix(in srgb, var(--accent) 40%, rgba(255, 255, 255, 0.16));
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 42%, #1d2d4c), rgba(27, 43, 72, 0.94));
}

.chat-message-system .chat-message-body {
  background: rgba(255, 255, 255, 0.055);
  color: #cbd8f2;
}

.related-suggestions {
  padding: 0 18px 18px;
  border-top: 1px solid rgba(150, 181, 255, 0.1);
}

.related-suggestions p {
  margin: 0;
  padding-top: 16px;
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.related-chip {
  background: rgba(31, 47, 79, 0.94);
}

.admin-kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.admin-panels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.admin-list {
  padding: 14px 18px 18px;
  display: grid;
  gap: 10px;
}

.admin-list-item {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px 16px;
  background: rgba(13, 24, 42, 0.78);
}

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

.admin-list-item span {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.9rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 980px) {
  .login-hero,
  .hero-grid,
  .public-grid,
  .login-form,
  .register-form,
  .admin-grid,
  .chat-form {
    grid-template-columns: 1fr;
  }

  .login-form button,
  .register-form button,
  .chat-form button {
    min-height: 58px;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 20px, 1200px);
  }

  .topbar,
  .hero-copy,
  .hero-panel,
  .chat-box,
  .login-panel,
  .login-copy {
    border-radius: 24px;
  }

  .topbar,
  .chat-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .audience-preview,
  .version-grid,
  .hero-meta,
  .admin-kpi-grid,
  .admin-panels {
    grid-template-columns: 1fr;
  }

  .hero-copy,
  .login-copy,
  .hero-panel,
  .chat-box,
  .login-panel {
    padding: 22px 18px;
  }
}