* {
    box-sizing: border-box;
}
.hidden {
    display: none !important;
}
html, body {
    margin: 0;
    min-height: 100%;
    font-family: Inter, Arial, sans-serif;
    background: #E2F4E8;
    color: #1F2937;
}

img,
video,
canvas {
    max-width: 100%;
}

.brand-nurse {
    color: #d7b55d;
}
body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
.header {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: #0F4C81;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
    color: #ffffff;
    box-shadow: 0 10px 24px rgba(11, 31, 58, 0.12);
}
.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}
.logo {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #1E88E5;
    color: white;
    font-weight: 700;
    font-size: 20px;
    overflow: hidden;
}
.logo-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.header h1 {
    margin: 0;
    font-size: 20px;
    color: #ffffff;
}
.header p {
    margin: 4px 0 0;
    color: rgba(255, 255, 255, 0.76);
    font-size: 14px;
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-left: auto;
}
.pill-button,
.primary-button,
.secondary-button,
.control-button,
.icon-button {
    border: none;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 600;
}
.pill-button {
    padding: 9px 13px;
    background: #EAF4FC;
    color: #0F4C81;
}
.primary-button {
    padding: 9px 13px;
    background: #1E88E5;
    color: white;
}
.secondary-button {
    padding: 9px 13px;
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.32);
}
.icon-button {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #f1f3f4;
    color: #1F2937;
    font-size: 20px;
}
.hero-card {
    margin: 10px 12px 0;
    padding: 12px;
    background: #ffffff;
    border: 1px solid #DDE8F0;
    border-radius: 14px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.hero-card h2 {
    margin: 0;
    font-size: 24px;
}
.hero-card p {
    margin: 10px 0 0;
    color: #667085;
    max-width: 520px;
}
.meeting-notice {
    flex-basis: 100%;
    margin-top: 8px;
    padding: 10px 12px;
    border: 1px solid rgba(15, 76, 129, 0.14);
    border-radius: 14px;
    background: #eef7ff;
    color: #0F4C81;
    font-size: 14px;
    font-weight: 700;
}
.meeting-notice.success {
    border-color: rgba(76, 175, 80, 0.25);
    background: #ecf8ee;
    color: #166534;
}
.meeting-notice.error {
    border-color: rgba(180, 35, 24, 0.25);
    background: #fff1f0;
    color: #b42318;
}

.lecture-board {
    margin: 12px 12px 0;
    padding: 14px;
    background: #ffffff;
    border: 1px solid #DDE8F0;
    border-radius: 14px;
}

.lecture-board-head {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    margin-bottom: 12px;
}

.lecture-board-head p {
    margin: 0 0 4px;
    color: #0F4C81;
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
}

.lecture-board-head h2 {
    margin: 0;
    font-size: 22px;
}

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

.lecture-card {
    display: grid;
    gap: 8px;
    padding: 12px;
    border: 1px solid #DDE8F0;
    border-radius: 12px;
    background: #fbfdff;
}

.lecture-card h3,
.lecture-card p {
    margin: 0;
}

.lecture-card h3 {
    color: #0F4C81;
    font-size: 17px;
}

.lecture-card p {
    color: #667085;
    font-size: 14px;
}

.lecture-card .primary-button {
    width: fit-content;
}
.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}
.active-meeting-bar {
    width: 100%;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 16px;
}
.small-button {
    padding: 10px 16px;
}
.meeting-schedule-row {
    margin-top: 14px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}
.schedule-chip {
    padding: 14px 16px;
    border-radius: 14px;
    background: #f7f9fc;
    border: 1px solid #e2e7ef;
}
.schedule-chip span {
    display: block;
    font-size: 12px;
    color: #667085;
    margin-bottom: 6px;
}
.schedule-chip strong {
    font-size: 14px;
    color: #1F2937;
}
.main {
    flex: 1;
    padding: 0 12px 18px;
}
.meeting-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: 12px;
}
.meeting-workspace {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) minmax(320px, 0.9fr);
    gap: 12px;
    align-items: start;
}
.video-stage {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.status-indicators {
    display: flex;
    gap: 12px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}
.status-pill {
    padding: 8px 14px;
    border-radius: 999px;
    background: #eceff3;
    color: #667085;
    font-size: 13px;
    font-weight: 600;
}
#meetingTimeLabel {
    background: #F0F7FC;
    color: #1E88E5;
}

.network-status {
    padding: 6px 12px;
    border-radius: 999px;
    background: #e8f5e8;
    color: #2e7d32;
    font-size: 12px;
    font-weight: 600;
}

.network-status.disconnected {
    background: #ffebee;
    color: #c62828;
}
.video-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    min-width: 0;
}
.tool-panel {
    display: grid;
    gap: 16px;
}
.tool-section {
    background: #ffffff;
    border: 1px solid #DDE8F0;
    border-radius: 24px;
    padding: 18px;
    min-height: 220px;
}
.tool-header {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}
.tool-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}
.tool-header h3 {
    margin: 0;
    font-size: 18px;
}
.tool-header p {
    margin: 6px 0 0;
    color: #667085;
    font-size: 14px;
}
.tool-close-button {
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 50%;
    background: #f1f3f4;
    color: #667085;
    font-size: 18px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.tool-empty {
    padding: 18px;
    border-radius: 16px;
    background: #f7f9fc;
    color: #667085;
    font-size: 14px;
}
.chat-messages {
    display: grid;
    gap: 12px;
    max-height: 320px;
    overflow-y: auto;
    padding-right: 4px;
}
.chat-message {
    padding: 12px 14px;
    border-radius: 16px;
    background: #f7f9fc;
}
.chat-message strong {
    display: block;
    margin-bottom: 4px;
    font-size: 13px;
}
.chat-message p {
    margin: 0;
    line-height: 1.5;
    color: #1F2937;
    font-size: 14px;
}
.chat-message-meta {
    margin-top: 8px;
    color: #667085;
    font-size: 12px;
}
.chat-compose {
    display: flex;
    gap: 10px;
    margin-top: 16px;
}
.chat-compose input {
    flex: 1;
    padding: 12px 14px;
    border: 1px solid #dfe1e5;
    border-radius: 14px;
    font-size: 14px;
}
.record-options,
.record-actions,
.participant-list {
    display: grid;
    gap: 12px;
}
.toggle-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border-radius: 16px;
    background: #f7f9fc;
    color: #1F2937;
    font-size: 14px;
}
.record-status {
    margin-top: 14px;
    color: #667085;
    font-size: 14px;
}
.record-download {
    display: inline-flex;
    margin-top: 14px;
    color: #1E88E5;
    font-weight: 600;
    text-decoration: none;
}
.participant-count {
    min-width: 36px;
    height: 36px;
    border-radius: 999px;
    background: #F0F7FC;
    color: #1E88E5;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}
.participant-item {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 16px;
    background: #f7f9fc;
}
.participant-item strong {
    display: block;
    font-size: 14px;
}
.participant-item span {
    color: #667085;
    font-size: 12px;
}
.participant-hand-status {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 10px;
    border-radius: 999px;
    background: #fff1cc;
    color: #8a5a00;
    font-size: 11px;
    font-weight: 700;
    white-space: nowrap;
}
.empty-state {
    min-height: 180px;
    border-radius: 24px;
    border: 1px dashed #3c4043;
    color: #d7dce1;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 24px;
    background: #14171c;
}
.video-card {
    position: relative;
    border-radius: 24px;
    min-height: 180px;
    max-height: 240px;
    height: 240px;
    overflow: hidden;
    background: linear-gradient(160deg, #243b53 0%, #102a43 100%);
}

.video-card.local-host {
    min-height: 220px;
    max-height: 280px;
    height: 280px;
}

.video-card video {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: #000000;
    z-index: 0;
}

.video-card.video-off video {
    display: none;
}

.video-avatar {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(32px, 8vw, 64px);
    font-weight: 700;
    letter-spacing: 0.08em;
    color: #ffffff;
    text-transform: uppercase;
    transition: opacity 0.2s ease;
    pointer-events: none;
    z-index: 0;
}

.video-card.video-on .video-avatar {
    opacity: 0;
}

.video-card.video-off .video-avatar {
    opacity: 1;
}

.video-card.placeholder {
    background: linear-gradient(180deg, #1E88E5 0%, #185abc 100%);
}

.video-card.placeholder .video-preview {
    font-size: 20px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: white;
}

.video-label {
    position: absolute;
    top: 16px;
    left: 16px;
    background: rgba(32, 33, 36, 0.72);
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 13px;
    color: white;
    z-index: 2;
}
.video-card.hand-raised .video-label {
    background: rgba(138, 90, 0, 0.86);
}
.meeting-summary {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding: 22px;
    background: #ffffff;
    border-radius: 20px;
    border: 1px solid #DDE8F0;
}
.meeting-summary h2 {
    margin: 0 0 8px;
    font-size: 18px;
}
.meeting-summary p {
    margin: 0;
    color: #667085;
}
.summary-pill {
    padding: 10px 16px;
    border-radius: 999px;
    background: #EAF4FC;
    color: #1E88E5;
    font-weight: 600;
}
.chat-panel {
    background: #ffffff;
    border: 1px solid #DDE8F0;
    border-radius: 20px;
    overflow: hidden;
}
.chat-header {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding: 18px 20px;
    border-bottom: 1px solid #DDE8F0;
}
.chat-header h2 {
    margin: 0;
    font-size: 18px;
}
.chat-header span {
    color: #667085;
    font-size: 14px;
}
.chat-box {
    max-height: 240px;
    overflow-y: auto;
    padding: 18px 20px;
    background: #f8fafc;
}
.chat-box p {
    margin: 0 0 12px;
    font-size: 14px;
    line-height: 1.6;
}
.chat-input {
    display: flex;
    gap: 10px;
    padding: 18px 20px;
    background: #ffffff;
    border-top: 1px solid #DDE8F0;
}
.chat-input input {
    flex: 1;
    padding: 14px 16px;
    border-radius: 12px;
    border: 1px solid #dfe1e5;
    font-size: 14px;
}
.chat-input button {
    padding: 14px 18px;
    border-radius: 12px;
    background: #1E88E5;
    color: white;
}
.footer {
    padding: 8px 12px;
    background: linear-gradient(to right, #14171c, #1F2937);
    border-top: 2px solid #3c4043;
}
.footer .powered-by {
    margin-top: 10px;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 12px;
    font-weight: 700;
}
.control-row {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}
.control-button {
    min-width: 48px;
    padding: 8px 12px;
    border-radius: 50px;
    color: white;
    transition: all 0.2s ease;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: transparent;
    border: none;
    cursor: pointer;
}

#micButton .control-icon,
#cameraButton .control-icon {
    color: white;
    position: relative;
}

#micButton .control-icon::before,
#cameraButton .control-icon::before {
    content: '';
    position: absolute;
    width: 120%;
    height: 2px;
    background: white;
    transform: rotate(-45deg);
    top: 50%;
    left: 50%;
    margin-left: -60%;
    margin-top: -1px;
}

#micButton.active .control-icon,
#cameraButton.active .control-icon {
    color: #1E88E5;
}

#micButton.active .control-icon::before,
#cameraButton.active .control-icon::before {
    display: none;
}

.control-icon {
    font-size: 18px;
    line-height: 1;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.control-button:hover:not(:disabled) {
    transform: translateY(-2px);
}

.control-button:hover:not(:disabled) .control-icon {
    color: #1E88E5;
}

.control-button.active {
    color: #1E88E5;
}

.control-button.active .control-icon {
    color: #1E88E5;
}
.tool-toggle-button.active .control-icon {
    background: rgba(26, 115, 232, 0.18);
}

#micButton:not(.active) .control-icon,
#cameraButton:not(.active) .control-icon {
    color: white;
}

.control-button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

.menu-container {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
}
.menu-popup {
    position: absolute;
    right: 0;
    bottom: calc(100% + 10px);
    min-width: 220px;
    background: #ffffff;
    border: 1px solid #DDE8F0;
    border-radius: 16px;
    padding: 8px;
    display: grid;
    gap: 6px;
    box-shadow: 0 18px 36px rgba(32, 33, 36, 0.28);
    z-index: 1000;
}
.menu-popup-item {
    display: flex;
    align-items: center;
    gap: 10px;
    border: none;
    background: #ffffff;
    color: #1F2937;
    border-radius: 12px;
    padding: 12px 14px;
    text-align: left;
    cursor: pointer;
    font-weight: 600;
}
.menu-popup-item i {
    width: 18px;
    text-align: center;
}
.menu-popup-item.active {
    background: #EAF4FC;
    color: #1E88E5;
}

.leave-call-button {
    min-width: 48px;
    padding: 6px 10px;
    border-radius: 50px;
    color: white;
    transition: all 0.2s ease;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: #d93025;
    border: none;
    cursor: pointer;
}

.leave-call-button:hover:not(:disabled) {
    background: #b3261e;
    transform: translateY(-2px);
}

.leave-call-button .control-icon {
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.16);
}

.leave-call-button:disabled {
    opacity: 0.5;
    cursor: default;
    transform: none;
}
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(32, 33, 36, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    z-index: 100;
}
.modal-card {
    width: min(780px, 100%);
    border-radius: 24px;
    background: white;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(32, 33, 36, 0.15);
}
.modal-header {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding: 18px 24px;
    border-bottom: 1px solid #DDE8F0;
}
.modal-header h2 {
    margin: 0;
    font-size: 20px;
}
.modal-body {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    padding: 18px 20px;
}
.modal-body label {
    display: grid;
    gap: 6px;
    font-size: 14px;
    color: #1F2937;
}
.modal-body input,
.modal-body select,
.modal-body textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #dfe1e5;
    border-radius: 14px;
    font-size: 14px;
}
.modal-body textarea {
    min-height: 70px;
}
.modal-body label:nth-child(5),
.modal-body label:nth-child(6),
.modal-body label:nth-child(7) {
    grid-column: span 2;
}
.modal-actions {
    display: flex;
    justify-content: flex-start;
    gap: 12px;
    padding: 16px 24px 20px;
}
.quiz-generator-panel {
    display: grid;
    gap: 1rem;
    margin-top: 1rem;
}
.quiz-generator-panel .upload-box {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    flex-wrap: wrap;
    padding: 1rem;
    border: 1px dashed rgba(0, 156, 166, 0.45);
    border-radius: 8px;
    background: rgba(0, 156, 166, 0.06);
}
.generated-questions-preview {
    display: grid;
    gap: 0.65rem;
    min-height: 70px;
    padding: 1rem;
    border-radius: 8px;
    background: #ffffff;
    border: 1px solid #dfe1e5;
}
.generated-questions-preview:empty {
    display: none;
}
.loading-spinner {
    width: 26px;
    height: 26px;
    border-radius: 999px;
    border: 4px solid rgba(0, 156, 166, 0.2);
    border-left-color: #009ca6;
    animation: spin 0.9s linear infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}
@media (max-width: 980px) {
    .lecture-grid {
        grid-template-columns: 1fr;
    }

    .meeting-workspace {
        grid-template-columns: 1fr;
    }
    .video-grid {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 760px) {
    .header, .main, .footer, .hero-card {
        padding-left: 16px;
        padding-right: 16px;
    }
    .header {
        flex-direction: column;
        align-items: stretch;
    }
    .header-actions {
        width: 100%;
        justify-content: flex-start;
        margin-top: 16px;
        gap: 8px;
        flex-wrap: wrap;
    }
    .header-actions > * {
        flex: 0 1 auto;
        min-width: max-content;
    }
    .hero-card {
        flex-direction: column;
        align-items: stretch;
    }
    .active-meeting-bar {
        flex-direction: column;
        align-items: stretch;
    }
    .meeting-schedule-row {
        grid-template-columns: 1fr;
    }
    .chat-compose {
        flex-direction: column;
    }
}