:root {
  color-scheme: light;
  --bg: #f4f7f4;
  --panel: #ffffff;
  --text: #17202a;
  --muted: #657684;
  --line: #d7e1dd;
  --student: #0f766e;
  --student-dark: #0b4f4a;
  --admin: #1d4ed8;
  --admin-dark: #172554;
  --ink: #101820;
  --warn: #b7791f;
  --danger: #b42318;
  --ok: #147d52;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
}

body.student-page {
  background:
    linear-gradient(90deg, rgba(15, 118, 110, 0.08) 0, rgba(15, 118, 110, 0.08) 1px, transparent 1px),
    linear-gradient(180deg, #eef7f5 0%, #f7faf8 46%, #f4f7f4 100%);
  background-size: 32px 100%, 100% 100%;
}

body.admin-page {
  --admin: #255f59;
  --admin-dark: #173f3b;
  background:
    radial-gradient(circle at 92% 5%, rgba(37, 95, 89, 0.09), transparent 30%),
    linear-gradient(135deg, #f5f8f7 0%, #edf3f2 100%);
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: wait;
  opacity: 0.68;
}

.topbar {
  margin: 16px;
  padding: 20px 24px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.94);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  box-shadow: 0 14px 40px rgba(16, 24, 32, 0.06);
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.logo {
  width: 58px;
  height: 58px;
  flex: 0 0 58px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: white;
  font-weight: 900;
  background: linear-gradient(135deg, #0f766e, #2563eb);
}

.student-logo { background: linear-gradient(135deg, #0f766e, #2563eb); }
.admin-logo { background: linear-gradient(135deg, #1e3a8a, #64748b); }

.eyebrow,
.panel-label {
  margin: 0 0 6px;
  color: var(--muted);
  font-weight: 900;
  font-size: 12px;
  letter-spacing: 0;
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.18;
}

h2 {
  font-size: 22px;
  line-height: 1.25;
}

h3 {
  font-size: 20px;
  line-height: 1.25;
}

.status-row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #f8fbfa;
  color: var(--muted);
  font-weight: 900;
  white-space: nowrap;
}

.pill.ok { color: var(--ok); }
.pill.warn { color: var(--warn); }
.pill.danger { color: var(--danger); }

.account {
  min-width: 132px;
  text-align: right;
}

.account strong,
.account span {
  display: block;
}

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

.dark-btn,
.primary,
.ghost,
.signal {
  border-radius: 8px;
  min-height: 44px;
  padding: 0 18px;
  font-weight: 900;
  border: 1px solid transparent;
}

.dark-btn {
  background: var(--ink);
  color: white;
  border: 0;
}

.primary {
  background: var(--student);
  color: white;
  border: 0;
}

.admin-page .primary {
  background: var(--admin);
}

.primary:hover {
  background: var(--student-dark);
}

.admin-page .primary:hover {
  background: var(--admin-dark);
}

.ghost,
.signal {
  background: white;
  color: var(--text);
  border-color: var(--line);
}

.ghost:hover,
.signal:hover {
  border-color: #9fb7ae;
  background: #fbfdfc;
}

.admin-page .ghost:hover {
  border-color: #aebde7;
  background: #f8faff;
}

.full { width: 100%; }

.panel,
.chat-panel,
.login-panel,
.entry-card,
.metric {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.96);
}

.panel {
  padding: 22px;
}

label {
  display: grid;
  gap: 8px;
  margin: 16px 0;
  color: var(--muted);
  font-weight: 800;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fbfdfc;
  color: var(--text);
}

input:focus,
textarea:focus {
  outline: 3px solid rgba(15, 118, 110, 0.18);
  border-color: #7fbeb6;
}

.admin-page input:focus,
.admin-page textarea:focus {
  outline-color: rgba(29, 78, 216, 0.18);
  border-color: #9db2ee;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

.hint {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.login-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 56px auto 24px;
  display: grid;
  grid-template-columns: minmax(320px, 460px) 1fr;
  gap: 16px;
  align-items: stretch;
}

.login-panel {
  padding: 26px;
}

.login-form {
  margin-top: 16px;
}

.auth-modes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px;
  margin-top: 18px;
  padding: 4px;
  border: 1px solid var(--line);
  background: #f4f6fa;
}

.auth-modes button {
  min-height: 40px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-weight: 800;
  cursor: pointer;
}

.auth-modes button.active {
  background: #fff;
  color: var(--ink);
  box-shadow: 0 1px 4px rgba(30, 42, 60, 0.12);
}

[hidden] {
  display: none !important;
}

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

.entry-card {
  padding: 26px;
  min-height: 240px;
  display: grid;
  align-content: end;
  gap: 10px;
}

.student-entry {
  border-top: 5px solid var(--student);
}

.admin-entry {
  border-top: 5px solid var(--admin);
}

.entry-kicker {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
}

.entry-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.student-layout {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 16px;
  margin: 0 16px 16px;
}

.student-rail {
  display: grid;
  gap: 16px;
  align-content: start;
}

.signal {
  width: 100%;
  display: block;
  text-align: left;
  margin-top: 10px;
}

.loop-list {
  margin: 8px 0 0;
  padding-left: 22px;
  line-height: 1.9;
  font-weight: 800;
}

.chat-panel {
  padding: 0;
  min-height: calc(100vh - 154px);
  display: grid;
  grid-template-rows: auto minmax(280px, 1fr) auto;
  overflow: hidden;
}

.chat-head {
  padding: 22px 26px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.messages {
  padding: 26px;
  overflow: auto;
  max-height: calc(100vh - 340px);
}

.empty {
  min-height: 260px;
  display: grid;
  place-content: center;
  text-align: center;
  color: var(--muted);
  padding: 20px;
}

.empty strong {
  color: var(--text);
  font-size: clamp(22px, 4vw, 30px);
  line-height: 1.25;
}

.empty p {
  margin: 14px 0 0;
  line-height: 1.7;
}

.empty.small {
  min-height: 140px;
  border: 1px dashed var(--line);
  border-radius: 8px;
}

.empty.small strong {
  font-size: 18px;
}

.message {
  max-width: 860px;
  margin: 0 0 18px;
}

.message.user {
  margin-left: auto;
}

.message-role {
  color: var(--muted);
  font-weight: 900;
  font-size: 13px;
  margin-bottom: 6px;
}

.message.user .message-role {
  text-align: right;
}

.bubble {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #f8fbfa;
  line-height: 1.7;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.message.user .bubble {
  background: #e7f6f3;
  border-color: #b7ddd5;
}

.composer {
  border-top: 1px solid var(--line);
  padding: 18px;
  display: grid;
  gap: 12px;
  background: rgba(255, 255, 255, 0.82);
}

.composer-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

.admin-layout {
  width: min(1580px, calc(100% - 32px));
  margin: 0 auto 24px;
  display: grid;
  gap: 18px;
}

.admin-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.metric {
  position: relative;
  min-height: 134px;
  padding: 20px;
  overflow: hidden;
  border-color: #d9e3e0;
  box-shadow: 0 10px 28px rgba(22, 53, 50, 0.05);
}

.metric::after {
  content: "";
  position: absolute;
  top: 18px;
  right: 18px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--metric-color, #3b716b);
  box-shadow: 0 0 0 7px color-mix(in srgb, var(--metric-color, #3b716b) 12%, transparent);
}

.metric span {
  color: var(--muted);
  font-weight: 900;
  font-size: 14px;
}

.metric strong {
  display: block;
  font-size: 38px;
  margin-top: 12px;
  line-height: 1;
}

.metric small {
  display: block;
  margin-top: 9px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.metric-blue { --metric-color: #356ca5; }
.metric-red { --metric-color: #a54258; }
.metric-amber { --metric-color: #a66b2b; }
.metric-teal { --metric-color: #317e73; }
.metric-purple { --metric-color: #6d5c91; }

.admin-page .topbar {
  width: min(1580px, calc(100% - 32px));
  margin: 16px auto;
  border-color: #d9e3e0;
  box-shadow: 0 14px 38px rgba(22, 53, 50, 0.07);
}

.admin-page .admin-logo {
  background: linear-gradient(145deg, #1d4c48, #3d7a73);
}

.topbar-subtitle {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.admin-page .panel,
.admin-page .insight-card {
  border-color: #d9e3e0;
  box-shadow: 0 10px 30px rgba(22, 53, 50, 0.05);
}

.dashboard-section {
  padding: 22px;
  border: 1px solid #d9e3e0;
  border-radius: 12px;
  background: rgba(240, 246, 244, 0.72);
}

.dashboard-title-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.update-stamp,
.section-count,
.chart-total {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.update-stamp {
  padding: 8px 12px;
  border: 1px solid #d3dfdc;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
}

.analytics-layout {
  display: grid;
  grid-template-columns: minmax(340px, 0.9fr) minmax(620px, 1.7fr);
  gap: 14px;
}

.trend-panel {
  min-height: 318px;
  display: flex;
  flex-direction: column;
}

.chart-head,
.delivery-heading,
.delivery-record > div,
.record-title-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.chart-head h3,
.insight-card h3 {
  font-size: 17px;
}

.trend-chart {
  min-height: 218px;
  flex: 1;
  display: grid;
  grid-template-columns: repeat(7, minmax(30px, 1fr));
  gap: 10px;
  align-items: stretch;
  margin-top: 22px;
}

.trend-column {
  min-width: 0;
  display: grid;
  grid-template-rows: 22px minmax(120px, 1fr) 20px;
  justify-items: center;
  gap: 7px;
}

.trend-column strong {
  font-size: 13px;
  color: #385b57;
}

.trend-column small {
  color: var(--muted);
  font-size: 11px;
  white-space: nowrap;
}

.trend-track {
  width: 72%;
  min-width: 20px;
  max-width: 42px;
  height: 100%;
  padding: 4px;
  border-radius: 7px;
  background:
    linear-gradient(180deg, rgba(37, 95, 89, 0.04), rgba(37, 95, 89, 0.09)),
    repeating-linear-gradient(to top, transparent 0, transparent 24%, rgba(37, 95, 89, 0.07) 25%);
  display: flex;
  align-items: flex-end;
}

.trend-track span {
  width: 100%;
  min-height: 4px;
  border-radius: 5px;
  background: linear-gradient(180deg, #4c968d, #255f59);
  transition: height 240ms ease;
}

.distribution-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.insight-card {
  min-width: 0;
  min-height: 152px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.96);
}

.distribution-list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.distribution-row {
  display: grid;
  grid-template-columns: 72px minmax(44px, 1fr) 24px;
  align-items: center;
  gap: 9px;
  min-width: 0;
}

.distribution-row > span {
  overflow: hidden;
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.distribution-row strong {
  text-align: right;
  font-size: 12px;
}

.distribution-track {
  height: 7px;
  overflow: hidden;
  border-radius: 999px;
  background: #edf2f0;
}

.distribution-fill {
  display: block;
  height: 100%;
  min-width: 0;
  border-radius: inherit;
  transition: width 240ms ease;
}

.tone-teal { background: #397e75; }
.tone-blue { background: #4d73a0; }
.tone-amber { background: #ac752f; }
.tone-orange { background: #b36e3d; }
.tone-red { background: #a7475c; }

.admin-data-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr) minmax(0, 0.92fr);
  gap: 14px;
  align-items: stretch;
}

.data-panel {
  min-width: 0;
  height: 590px;
  display: flex;
  flex-direction: column;
}

.scroll-list {
  min-height: 0;
  overflow: auto;
  padding-right: 5px;
}

.delivery-block {
  min-height: 0;
  display: flex;
  flex: 1;
  flex-direction: column;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid #e1e8e6;
}

.delivery-heading {
  margin-bottom: 10px;
}

.delivery-heading span {
  color: var(--muted);
  font-size: 12px;
}

.delivery-list {
  display: grid;
  gap: 9px;
  overflow: auto;
}

.delivery-record {
  padding: 12px;
  border: 1px solid #dfe7e4;
  border-radius: 8px;
  background: #fbfdfc;
}

.delivery-record small {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.delivery-record p {
  margin: 7px 0 0;
  color: #3d514f;
  font-size: 12px;
  line-height: 1.45;
}

.delivery-empty {
  min-height: 78px;
  display: grid;
  place-items: center;
  border: 1px dashed #d4dfdc;
  border-radius: 8px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.status-badge,
.risk-badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 9px;
  border-radius: 999px;
  background: #e8f3f0;
  color: #23665d;
  font-size: 10px;
  font-weight: 900;
  white-space: nowrap;
}

.status-failed,
.risk-badge.risk-high {
  background: #f8e8eb;
  color: #94374c;
}

.risk-badge.risk-medium {
  background: #fbf0df;
  color: #946022;
}

.risk-badge.risk-low {
  background: #e5f2ef;
  color: #2f7067;
}

.case-status-open {
  background: #fbf0df;
  color: #946022;
}

.case-status-alert_sent {
  background: #f8e8eb;
  color: #94374c;
}

.case-status-acknowledged {
  background: #e5f2ef;
  color: #2f7067;
}

.admin-detail-grid {
  display: grid;
  grid-template-columns: minmax(360px, 0.82fr) minmax(520px, 1.18fr);
  gap: 14px;
  align-items: start;
}

.section-head,
.upload-row,
.admin-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.upload-row,
.admin-actions {
  margin-top: 16px;
}

.upload-row input {
  min-width: 0;
}

.reports,
.cases {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.report {
  width: 100%;
  border: 1px solid var(--line);
  border-left: 5px solid var(--admin);
  border-radius: 8px;
  padding: 16px;
  background: #fbfdfc;
  color: var(--text);
  text-align: left;
  cursor: pointer;
}

.report:hover,
.report.active {
  border-color: #9db2ee;
  border-left-color: var(--admin);
  box-shadow: 0 10px 24px rgba(29, 78, 216, 0.12);
}

.report:focus-visible {
  outline: 3px solid rgba(29, 78, 216, 0.24);
  outline-offset: 2px;
}

.report.risk-high {
  border-left-color: var(--danger);
}

.report.risk-medium {
  border-left-color: var(--warn);
}

.report-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.report span,
.report small {
  color: var(--muted);
}

.report p {
  margin: 10px 0;
  line-height: 1.6;
}

.report small {
  display: block;
  line-height: 1.6;
}

.report-action {
  display: inline-block;
  margin-top: 12px;
  color: var(--admin);
  font-weight: 900;
}

.case-card {
  border: 1px solid var(--line);
  border-left: 5px solid var(--admin);
  border-radius: 8px;
  padding: 16px;
  background: #fbfdfc;
}

.case-card.risk-high {
  border-left-color: var(--danger);
}

.case-card.risk-medium {
  border-left-color: var(--warn);
}

.case-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.case-card small,
.case-head span {
  color: var(--muted);
}

.case-card p {
  margin: 10px 0;
  line-height: 1.6;
}

.case-card pre {
  margin: 12px 0 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fbfa;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  line-height: 1.6;
}

.conversation-detail {
  margin-top: 18px;
  display: grid;
  gap: 14px;
  max-height: 560px;
  overflow: auto;
}

.conversation-message {
  max-width: 900px;
}

.conversation-message.user {
  margin-left: auto;
}

.conversation-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
}

.conversation-message.user .conversation-meta {
  text-align: right;
}

.conversation-bubble {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  background: #f8fbfa;
  line-height: 1.7;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.conversation-message.user .conversation-bubble {
  background: #eef3ff;
  border-color: #c8d4f6;
}

/* Premium student companion experience */
.student-page {
  --student: #246b63;
  --student-dark: #174d47;
  --student-soft: #e7f2ef;
  background:
    radial-gradient(circle at 8% 2%, rgba(231, 182, 144, 0.16), transparent 25%),
    radial-gradient(circle at 92% 8%, rgba(71, 133, 124, 0.13), transparent 30%),
    linear-gradient(145deg, #f8faf8 0%, #eef4f2 100%);
}

.student-page .topbar {
  width: min(1560px, calc(100% - 32px));
  margin: 16px auto;
  padding: 18px 22px;
  border-color: #d9e5e1;
  border-radius: 16px;
  box-shadow: 0 16px 46px rgba(24, 68, 62, 0.07);
}

.student-page .student-logo {
  width: 54px;
  height: 54px;
  flex-basis: 54px;
  border-radius: 14px;
  background: linear-gradient(145deg, #174f49, #3f887e);
  box-shadow: 0 10px 24px rgba(28, 94, 86, 0.2);
}

.student-page .pill {
  min-height: 32px;
  padding: 0 12px;
  border-color: #d8e4e0;
  background: rgba(247, 251, 249, 0.9);
  font-size: 12px;
}

.student-page .dark-btn {
  border-radius: 10px;
  background: #172725;
}

.premium-student-layout {
  width: min(1560px, calc(100% - 32px));
  margin: 0 auto 24px;
  grid-template-columns: minmax(320px, 390px) minmax(0, 1fr);
  gap: 18px;
  align-items: stretch;
}

.premium-student-layout .student-rail {
  gap: 14px;
}

.companion-card {
  position: relative;
  min-height: 250px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 18px;
  background: #284d49;
  box-shadow: 0 18px 44px rgba(32, 75, 69, 0.13);
}

.companion-visual {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(180deg, rgba(13, 38, 35, 0.02) 22%, rgba(16, 47, 43, 0.88) 100%),
    url("/assets/aegiscare-campus-companion.png");
  background-position: 49% center;
  background-size: cover;
  transform: scale(1.015);
}

.companion-copy {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1;
  padding: 48px 22px 20px;
  color: white;
}

.companion-copy span,
.welcome-kicker {
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.companion-copy span {
  color: rgba(255, 255, 255, 0.7);
}

.companion-copy h2 {
  margin-top: 7px;
  font-size: 22px;
}

.companion-copy p {
  max-width: 320px;
  margin: 8px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 12px;
  line-height: 1.6;
}

.checkin-panel {
  padding: 18px;
  border-color: #d9e5e1;
  border-radius: 16px;
  box-shadow: 0 12px 34px rgba(28, 76, 69, 0.06);
}

.checkin-panel h3 {
  font-size: 17px;
}

.checkin-note {
  color: var(--muted);
  font-size: 11px;
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
  margin-top: 15px;
}

.mood-signal {
  min-height: 84px;
  margin: 0;
  padding: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-color: #dce7e4;
  border-radius: 12px;
  background: #fbfdfc;
  text-align: left;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.mood-signal:hover {
  transform: translateY(-2px);
  border-color: #98bbb5;
  background: white;
  box-shadow: 0 10px 22px rgba(31, 95, 87, 0.09);
}

.signal-icon {
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: #e7f2ef;
  color: #28685f;
  font-size: 18px;
  font-weight: 900;
}

.mood-signal > span:last-child {
  min-width: 0;
}

.mood-signal strong,
.mood-signal small {
  display: block;
}

.mood-signal strong {
  font-size: 12px;
  line-height: 1.35;
}

.mood-signal small {
  margin-top: 4px;
  overflow: hidden;
  color: var(--muted);
  font-size: 9px;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.support-note {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 17px;
  border: 1px solid rgba(65, 121, 112, 0.16);
  border-radius: 14px;
  background: rgba(231, 242, 239, 0.72);
}

.support-mark {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: #2b6b63;
  color: white;
  font-size: 10px;
  font-weight: 900;
}

.support-note strong {
  font-size: 12px;
}

.support-note p {
  margin: 5px 0 0;
  color: #61736f;
  font-size: 10px;
  line-height: 1.55;
}

.student-chat {
  min-height: calc(100vh - 150px);
  height: min(880px, calc(100vh - 150px));
  border-color: #d7e3df;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.93);
  box-shadow: 0 20px 60px rgba(25, 69, 63, 0.1);
  grid-template-rows: auto auto minmax(260px, 1fr) auto;
}

.student-chat-head {
  padding: 22px 26px 18px;
  border-bottom: 0;
}

.chat-heading-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}

.assistant-avatar {
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  background: linear-gradient(145deg, #d8ece7, #edf7f4);
  color: #25665e;
  font-size: 12px;
  font-weight: 900;
  box-shadow: inset 0 0 0 1px rgba(43, 107, 99, 0.13);
}

.student-chat-head h2 {
  font-size: 21px;
}

.chat-subtitle {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 11px;
}

.session-state {
  display: flex;
  align-items: center;
  gap: 7px;
}

.session-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #3a8a7e;
  box-shadow: 0 0 0 5px rgba(58, 138, 126, 0.1);
}

.student-trust-row {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 10px 27px;
  border-top: 1px solid #edf2f0;
  border-bottom: 1px solid #e7eeeb;
  background: rgba(246, 250, 248, 0.72);
  color: #71817d;
  font-size: 10px;
  font-weight: 800;
}

.student-trust-row span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.student-trust-row i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #68a198;
}

.student-chat .messages {
  min-height: 0;
  max-height: none;
  padding: 28px clamp(22px, 4vw, 54px);
  background:
    radial-gradient(circle at 50% 0, rgba(220, 238, 233, 0.34), transparent 40%),
    #fcfdfc;
}

.student-welcome {
  min-height: 100%;
  padding: 36px 20px;
}

.student-welcome .welcome-kicker {
  color: #4c8079;
}

.student-welcome strong {
  max-width: 680px;
  margin-top: 14px;
  font-size: clamp(26px, 3.3vw, 42px);
  letter-spacing: -0.035em;
}

.student-welcome p {
  max-width: 620px;
  margin: 16px auto 0;
  color: #70807c;
  font-size: 14px;
}

.welcome-prompts {
  max-width: 760px;
  display: flex;
  justify-content: center;
  gap: 9px;
  margin: 26px auto 0;
  flex-wrap: wrap;
}

.welcome-prompts button {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid #dbe6e2;
  border-radius: 999px;
  background: white;
  color: #465e59;
  font-size: 11px;
  font-weight: 800;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.welcome-prompts button:hover {
  transform: translateY(-1px);
  border-color: #8fb7b0;
  background: #f3f9f7;
}

.student-chat .message {
  max-width: min(780px, 86%);
  margin-bottom: 20px;
}

.student-chat .message-role {
  padding: 0 3px;
  color: #72817e;
  font-size: 10px;
  letter-spacing: 0.04em;
}

.student-chat .bubble {
  padding: 14px 17px;
  border-color: #dde8e4;
  border-radius: 5px 18px 18px 18px;
  background: white;
  box-shadow: 0 8px 24px rgba(31, 71, 65, 0.06);
  font-size: 14px;
  line-height: 1.75;
}

.student-chat .bubble p {
  margin: 0 0 8px;
}

.student-chat .bubble p:last-child,
.student-chat .bubble ul:last-child {
  margin-bottom: 0;
}

.student-chat .bubble ul {
  margin: 6px 0 10px;
  padding-left: 20px;
}

.student-chat .bubble code {
  padding: 2px 5px;
  border-radius: 4px;
  background: #eef3f1;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.92em;
}

.student-chat .message.user .bubble {
  border: 0;
  border-radius: 18px 5px 18px 18px;
  background: linear-gradient(145deg, #2a7068, #205b55);
  color: white;
  box-shadow: 0 10px 26px rgba(34, 97, 89, 0.18);
}

.student-chat .composer {
  padding: 16px 20px 18px;
  gap: 10px;
  border-color: #e2eae7;
  background: rgba(250, 252, 251, 0.96);
}

.composer-shell {
  overflow: hidden;
  border: 1px solid #d6e2de;
  border-radius: 14px;
  background: white;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.composer-shell:focus-within {
  border-color: #7faea6;
  box-shadow: 0 0 0 4px rgba(45, 112, 103, 0.1);
}

.student-chat .composer textarea {
  min-height: 74px;
  padding: 15px 16px 8px;
  border: 0;
  border-radius: 0;
  background: transparent;
  font-size: 13px;
  line-height: 1.6;
}

.student-chat .composer textarea:focus {
  outline: 0;
}

.composer-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 0 15px 11px;
  color: #8a9794;
  font-size: 9px;
}

.student-composer-actions {
  align-items: center;
  justify-content: space-between;
}

.student-composer-actions > div {
  display: flex;
  gap: 9px;
}

.keyboard-hint {
  color: #899692;
  font-size: 9px;
}

.student-composer-actions .ghost,
.student-composer-actions .primary {
  min-height: 40px;
  border-radius: 10px;
  font-size: 12px;
}

.send-button {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 0 17px;
  box-shadow: 0 8px 20px rgba(31, 102, 93, 0.17);
}

.send-button span {
  font-size: 15px;
}

@media (max-width: 1120px) {
  .admin-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .analytics-layout,
  .admin-detail-grid {
    grid-template-columns: 1fr;
  }

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

  .admin-data-grid .data-panel:last-child {
    grid-column: 1 / -1;
    height: auto;
  }

  .admin-columns,
  .login-shell {
    grid-template-columns: 1fr;
  }

  .premium-student-layout {
    grid-template-columns: minmax(280px, 330px) minmax(0, 1fr);
  }
}

@media (max-width: 900px) {
  .premium-student-layout {
    grid-template-columns: 1fr;
  }

  .premium-student-layout .student-rail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .premium-student-layout .support-note {
    grid-column: 1 / -1;
  }

  .student-chat {
    height: 780px;
    min-height: 720px;
  }
}

@media (max-width: 720px) {
  .topbar,
  .student-layout,
  .admin-layout {
    margin: 10px;
  }

  .topbar,
  .status-row,
  .section-head,
  .upload-row,
  .admin-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .topbar {
    display: flex;
  }

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

  .status-row {
    justify-content: stretch;
  }

  .pill,
  .dark-btn,
  .primary,
  .ghost {
    justify-content: center;
  }

  .account {
    min-width: 0;
    text-align: left;
  }

  .login-shell {
    width: calc(100% - 20px);
    margin-top: 10px;
  }

  .entry-grid,
  .admin-grid {
    grid-template-columns: 1fr;
  }

  .admin-page .topbar,
  .admin-layout {
    width: calc(100% - 20px);
  }

  .student-page .topbar,
  .premium-student-layout {
    width: calc(100% - 20px);
    margin-right: auto;
    margin-left: auto;
  }

  .premium-student-layout .student-rail {
    grid-template-columns: 1fr;
  }

  .premium-student-layout .support-note {
    grid-column: auto;
  }

  .student-chat {
    height: auto;
  }

  .student-trust-row {
    gap: 10px 16px;
    flex-wrap: wrap;
  }

  .dashboard-section {
    padding: 16px;
  }

  .dashboard-title-row {
    align-items: stretch;
    flex-direction: column;
  }

  .distribution-grid,
  .admin-data-grid {
    grid-template-columns: 1fr;
  }

  .admin-data-grid .data-panel:last-child {
    grid-column: auto;
  }

  .data-panel {
    height: auto;
    max-height: 680px;
  }

  .trend-chart {
    gap: 5px;
  }

  .trend-column small {
    font-size: 9px;
  }

  .chat-panel {
    min-height: 70vh;
  }

  .chat-head,
  .composer-actions,
  .report-head,
  .case-head,
  .conversation-meta {
    align-items: stretch;
    flex-direction: column;
  }

  .messages {
    padding: 18px;
    max-height: none;
  }
}