/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #f5f5f5;
    --bg-secondary: #ffffff;
    --bg-persona: #f5e6e8;
    --bg-chat-box: #d4e5f7;
    --bg-chat-messages: #fafafa;
    --text-primary: #333333;
    --text-secondary: #666666;
    --accent-blue: #4a90d9;
    --accent-purple: #7b68a6;
    --accent-green: #4caf50;
    --accent-red: #e74c3c;
    --border-color: #cccccc;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --focus-ring: 0 0 0 3px rgba(123, 104, 166, 0.28);
    --focus-ring-blue: 0 0 0 3px rgba(74, 144, 217, 0.28);
}

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background:
        radial-gradient(900px 500px at 20% 10%, rgba(123, 104, 166, 0.10), transparent 55%),
        radial-gradient(800px 520px at 85% 20%, rgba(74, 144, 217, 0.10), transparent 60%),
        radial-gradient(700px 420px at 45% 95%, rgba(76, 175, 80, 0.08), transparent 55%),
        linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.5;
    background-attachment: fixed;
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--bg-secondary);
    padding: 48px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    max-width: 420px;
    width: 90%;
}

.modal-content h2 {
    font-family: 'Crimson Pro', Georgia, serif;
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--accent-purple);
}

.modal-content p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.login-consent {
    width: 100%;
    text-align: left;
    margin: 10px 0 16px;
}

.login-consent-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.login-consent-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.35;
    margin: 8px 0;
}

.login-consent-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 1px;
    flex: 0 0 18px;
}

.btn-primary:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.modal-content input {
    width: 100%;
    padding: 16px;
    font-size: 24px;
    text-align: center;
    letter-spacing: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 20px;
    transition: border-color 0.3s ease;
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.modal-content input:focus {
    outline: none;
    border-color: var(--accent-purple);
    box-shadow: var(--focus-ring);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-purple) 0%, #5a4a8a 100%);
    color: white;
    border: none;
    padding: 14px 48px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(123, 104, 166, 0.4);
}

.error-text {
    color: var(--accent-red);
    font-size: 14px;
    margin-top: 12px;
    min-height: 20px;
}

.hidden {
    display: none !important;
}

/* Tie warning modal (one-time) */
#tie-warning-modal .tie-warning-content {
    padding: 28px;
    max-width: 520px;
}

#tie-warning-modal .tie-warning-content p {
    margin-bottom: 18px;
}

#tie-warning-modal .tie-warning-ok {
    padding: 12px 28px;
}

@keyframes modalShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-6px); }
    50% { transform: translateX(6px); }
    75% { transform: translateX(-4px); }
}

#tie-warning-modal .modal-content.modal-shake {
    animation: modalShake 200ms ease-in-out;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background: var(--bg-secondary);
    box-shadow: var(--shadow);
    border-radius: 16px;
}

.header-instructions {
    flex: 1;
    display: flex;
    justify-content: center;
    padding: 0 16px;
}

.header-instructions-row {
    display: flex;
    align-items: center;
    gap: 14px;
    max-width: 720px;
}

.header-instructions-text {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.35;
}

.btn-instructions {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--accent-purple);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
}

.btn-instructions:hover {
    background: #f4f0ff;
    border-color: var(--accent-purple);
}

.btn-instructions:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.header-left {
    display: flex;
    flex-direction: column;
    gap: 4px;
    /* Prevent layout shifts as time text grows */
    flex: 0 0 clamp(240px, 24vw, 340px);
    width: clamp(240px, 24vw, 340px);
}

.user-info {
    font-size: 20px;
    font-weight: 500;
    color: var(--text-primary);
}

.user-info span {
    color: var(--accent-purple);
    font-weight: 600;
}

.user-total-time {
    font-size: 13px;
    color: var(--text-secondary);
}

.total-time-value {
    font-variant-numeric: tabular-nums;
    font-weight: 700;
    display: inline-block;
    min-width: 5ch; /* MM:SS */
    text-align: right;
}

.total-time-value.time-active {
    color: var(--accent-green);
}

.total-time-value.time-frozen {
    color: var(--accent-red);
}

.conversation-counter {
    font-size: 14px;
    color: var(--text-secondary);
}

.conversation-counter span {
    font-weight: 600;
    color: var(--accent-purple);
}

/* Breadcrumb Navigation */
.breadcrumb-container {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    background: transparent;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.breadcrumb-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.progress-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.55);
    border: 1px solid rgba(0, 0, 0, 0.08);
    color: var(--text-primary);
    font-weight: 700;
    backdrop-filter: blur(6px);
}

.progress-chip-label {
    color: var(--text-secondary);
    font-weight: 700;
}

.progress-chip-sep {
    color: var(--text-secondary);
    font-weight: 600;
}

.breadcrumb-wrapper {
    flex: 1;
    overflow: visible;
    position: relative;
    min-width: 260px;
}

.breadcrumb-scroll {
    display: flex;
    gap: 6px;
    flex-wrap: wrap; /* show all conversations at once */
    overflow-x: hidden;
    overflow-y: visible;
    padding: 4px 0;
}

.done-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.55);
    border: 1px solid rgba(0, 0, 0, 0.08);
    color: var(--text-primary);
    font-weight: 700;
    backdrop-filter: blur(6px);
}

.breadcrumb-timer {
    flex-shrink: 0;
}

.breadcrumb-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 28px;
    padding: 0 10px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    background: #f0f0f0;
    border: 1px solid var(--border-color);
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    position: relative;
    user-select: none;
}

.breadcrumb-item:hover {
    background: #e8e8e8;
    border-color: var(--accent-purple);
    color: var(--accent-purple);
}

.breadcrumb-item:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.breadcrumb-item.active {
    background: var(--accent-purple);
    color: white;
    border-color: var(--accent-purple);
}

.breadcrumb-item.completed {
    background: #e8f5e9;
    border-color: var(--accent-green);
    color: var(--accent-green);
}

.breadcrumb-item.completed:hover {
    background: #c8e6c9;
}

.breadcrumb-item.completed::after {
    content: "✓";
    position: absolute;
    right: -6px;
    top: -6px;
    width: 16px;
    height: 16px;
    border-radius: 999px;
    background: var(--accent-green);
    color: #fff;
    font-size: 11px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.breadcrumb-item.placeholder,
.breadcrumb-item:disabled {
    opacity: 0.45;
    cursor: default;
    background: transparent;
}

.breadcrumb-item.placeholder:hover,
.breadcrumb-item:disabled:hover {
    border-color: var(--border-color);
    color: var(--text-secondary);
}

.header-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
}

.timer-section {
    display: flex;
    align-items: center;
    gap: 16px;
}

.countdown-notice {
    font-size: 14px;
    color: var(--text-secondary);
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.55);
    border: 1px solid rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(6px);
}

.countdown-notice.hidden {
    display: none;
}

.btn-logout {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-logout:hover {
    background: var(--accent-red);
    color: white;
    border-color: var(--accent-red);
}

.btn-logout:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.timer-value {
    color: var(--accent-red);
    font-weight: 600;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-chip {
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.55);
    border: 1px solid rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(6px);
}

.status-light {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-red);
    transition: background 0.3s ease;
}

.status-light.active {
    background: var(--accent-green);
    box-shadow: 0 0 12px rgba(76, 175, 80, 0.5);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

#status-text {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Main Content */
#main-interface {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

/* Persona Box */
.persona-row {
    display: flex;
    align-items: stretch;
    gap: 12px;
    margin-bottom: 16px;
}

.doctor-panel {
    flex: 0 0 220px;
    width: 220px;
    min-width: 220px;
}

.doctor-box {
    background: rgba(76, 175, 80, 0.12); /* green-tinted */
    border: 1px solid rgba(76, 175, 80, 0.35);
    border-radius: 8px;
    padding: 10px 14px;
    height: 150px; /* match patient persona box */
    overflow-y: auto;
}

.doctor-description {
    color: var(--text-primary);
    margin-top: 0;
    white-space: pre-wrap;
    font-size: 18px; /* bigger than patient */
    line-height: 1.5;
    font-weight: 700;
}

.persona-panel {
    flex: 1;
    min-width: 0;
}

.persona-box {
    background: var(--bg-persona);
    border: 1px solid #d4a5a5;
    border-radius: 8px;
    /* Tighter vertical rhythm: reduce dead space around persona text */
    padding: 10px 14px;
    margin-bottom: 16px;
    height: 150px; /* keep same height as doctor box */
    overflow-y: auto;
}

/* When persona box is inside the side-by-side panel, the row controls spacing. */
.persona-panel .persona-box {
    margin-bottom: 0;
}

.persona-box::-webkit-scrollbar {
    width: 6px;
}

.persona-box::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 3px;
}

.persona-box::-webkit-scrollbar-thumb {
    background: #c4a0a0;
    border-radius: 3px;
}

.persona-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 4px;
    min-height: 34px; /* match expand button height so doctor/patient headers align */
}

.persona-box .persona-title {
    color: #6b4c4c;
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 0;
}

.persona-expand-btn {
    border: 1px solid rgba(0, 0, 0, 0.12);
    background: rgba(255, 255, 255, 0.35);
    color: #6b4c4c;
    border-radius: 8px;
    width: 34px;
    height: 34px;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.persona-title-spacer {
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
}

.persona-expand-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.persona-expand-label {
    font-size: 13px;
    font-weight: 700;
    color: #6b4c4c;
    white-space: nowrap;
}

.persona-expand-btn:hover {
    background: rgba(255, 255, 255, 0.55);
}

.persona-expand-btn:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.persona-box p {
    color: var(--text-primary);
    margin-top: 0;
    white-space: pre-wrap;
    font-size: 14px;
    line-height: 1.45;
}

.persona-box p strong {
    color: #8b3a3a;
    font-size: 14px;
    font-weight: 700;
    background: rgba(139, 58, 58, 0.1);
    padding: 2px 6px;
    border-radius: 3px;
    display: inline-block;
    /* Avoid extra line-box expansion that adds vertical whitespace */
    margin-top: 0;
}

@media (max-width: 760px) {
    .persona-row {
        flex-direction: column;
    }
    .doctor-panel {
        width: 100%;
        flex-basis: auto;
        min-width: 0;
    }
}

.persona-modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.persona-modal.open {
    display: flex;
}

.persona-modal-content {
    width: min(900px, 95vw);
    max-height: min(80vh, 720px);
    background: var(--bg-secondary);
    border-radius: 14px;
    box-shadow: 0 20px 70px rgba(0, 0, 0, 0.25);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.persona-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 16px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    background: #fff;
}

.persona-modal-title {
    font-weight: 700;
    color: #6b4c4c;
}

.persona-modal-close {
    border: none;
    background: transparent;
    color: var(--text-secondary);
    width: 34px;
    height: 34px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 18px;
}

.persona-modal-close:hover {
    background: rgba(0, 0, 0, 0.06);
    color: var(--text-primary);
}

.persona-modal-body {
    padding: 16px 18px;
    overflow: auto;
    white-space: pre-wrap;
    line-height: 1.6;
    font-size: 14px;
}

.persona-modal-body strong {
    color: #8b3a3a;
    font-size: 14px;
    font-weight: 700;
    background: rgba(139, 58, 58, 0.1);
    padding: 2px 6px;
    border-radius: 3px;
    display: inline-block;
    margin-top: 8px;
}

/* Chat Container */
.chat-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.chat-box {
    background: var(--bg-chat-box);
    border-radius: 12px;
    padding: 16px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
    transition: transform 160ms ease, box-shadow 160ms ease;
}

.chat-box::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 5px;
    background: var(--chat-accent, var(--accent-purple));
    opacity: 0.85;
}

.chat-box:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.10);
}

.chat-box-a {
    --chat-accent: var(--accent-blue);
    --chat-accent-soft: rgba(74, 144, 217, 0.10);
}

.chat-box-b {
    --chat-accent: var(--accent-purple);
    --chat-accent-soft: rgba(123, 104, 166, 0.10);
}

.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: 'Crimson Pro', Georgia, serif;
    font-size: 22px;
    font-weight: 500;
    color: var(--text-primary);
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    margin-bottom: 12px;
}

.chat-title {
    padding-left: 8px; /* account for accent stripe */
}

.turn-badge {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.75);
    border: 1px solid rgba(0, 0, 0, 0.08);
    padding: 6px 10px;
    border-radius: 999px;
    white-space: nowrap;
}

.turn-badge.complete {
    color: var(--accent-green);
    border-color: rgba(76, 175, 80, 0.35);
    background: rgba(76, 175, 80, 0.10);
}

.chat-messages {
    background: var(--bg-chat-messages);
    border-radius: 8px;
    height: 280px;
    overflow-y: auto;
    padding: 16px;
    margin-bottom: 12px;
    font-size: 14px;
    line-height: 1.7;
    display: flex;
    flex-direction: column;
    gap: 10px;
    border: 1px solid rgba(0, 0, 0, 0.06);
    transition: opacity 200ms ease, transform 200ms ease;
}

.chat-messages.is-refreshing {
    opacity: 0.25;
    transform: translateY(2px);
}

.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

.message {
    max-width: 86%;
    padding: 10px 12px;
    border-radius: 12px;
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(0, 0, 0, 0.06);
    animation: messageIn 140ms ease-out;
}

.message.message-static {
    animation: none;
}

.message.message-animate {
    animation: messageIn 180ms ease-out;
}

@keyframes messageIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

.message-doctor {
    color: var(--text-primary);
    align-self: flex-end;
    background: #ffffff;
    border-color: rgba(44, 62, 80, 0.12);
}

.message-patient {
    align-self: flex-start;
    background: var(--chat-accent-soft, rgba(123, 104, 166, 0.10));
    border-color: rgba(0, 0, 0, 0.06);
    color: var(--text-primary);
}

.chat-box-a .message-patient strong {
    color: var(--accent-blue);
}

.chat-box-b .message-patient strong {
    color: var(--accent-purple);
}

.message-typing {
    color: #9aa0a6;
    font-style: italic;
}

.chat-input-container {
    display: flex;
    align-items: center;
    gap: 8px;
}

.input-label {
    font-weight: 600;
    color: var(--text-primary);
    min-width: 24px;
}

.chat-input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s ease;
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.chat-input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.chat-box-a .chat-input:focus {
    border-color: var(--accent-blue);
    box-shadow: var(--focus-ring-blue);
}

.chat-box-b .chat-input:focus {
    border-color: var(--accent-purple);
    box-shadow: var(--focus-ring);
}

.chat-input:disabled {
    background: #f1f3f5;
    color: var(--text-secondary);
    cursor: not-allowed;
}

.btn-send {
    background: var(--accent-green);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-send:hover:not(:disabled) {
    background: #43a047;
    transform: translateY(-1px);
}

.btn-send:active:not(:disabled) {
    transform: translateY(0);
}

.btn-send:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.30);
}

.btn-send:disabled {
    background: #a5d6a7;
    cursor: not-allowed;
    opacity: 0.65;
    transform: none;
}

.kbd-hint {
    font-size: 12px;
    font-weight: 700;
    line-height: 1;
    padding: 3px 7px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.20);
    border: 1px solid rgba(255, 255, 255, 0.25);
}

/* Scoring Section */
.scoring-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.score-row {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.score-number {
    font-weight: 600;
    min-width: 24px;
}

.score-label {
    min-width: 300px;
    color: var(--text-primary);
}

.score-buttons {
    display: flex;
    gap: 8px;
}

.score-btn {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-primary);
    font-weight: 500;
}

.score-btn:hover {
    border-color: var(--accent-purple);
    background: #f8f5ff;
    color: var(--accent-purple);
    transform: translateY(-1px);
}

.score-btn.selected {
    background: var(--accent-purple);
    color: white;
    border-color: var(--accent-purple);
    box-shadow: 0 10px 22px rgba(123, 104, 166, 0.28);
    transform: translateY(-1px);
}

.score-btn:active {
    transform: translateY(0);
}

.score-btn:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

/* Likert Scale Styles */
.likert-buttons {
    gap: 0;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.10);
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(6px);
}

.likert-buttons .score-btn {
    border: none;
    border-right: 1px solid rgba(0, 0, 0, 0.10);
    border-radius: 0;
    background: transparent;
}

.likert-buttons .score-btn:last-child {
    border-right: none;
}

.likert-buttons .score-btn:hover {
    background: rgba(123, 104, 166, 0.10);
    color: var(--accent-purple);
    transform: none;
}

.likert-buttons .score-btn.selected {
    background: var(--accent-purple);
    color: #fff;
    box-shadow: none;
    transform: none;
}

.likert-btn {
    min-width: 40px;
    padding: 8px 12px;
}

.likert-label-left,
.likert-label-right {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
}

.likert-label-left {
    margin-right: 8px;
}

.likert-label-right {
    margin-left: 8px;
}

/* Navigation Buttons */
.nav-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 24px;
    align-items: center;
    gap: 12px;
}

.continue-requirements {
    flex: 1;
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    min-height: 22px;
    color: var(--text-secondary);
    font-size: 13px;
}

.req-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.55);
    border: 1px solid rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(6px);
    white-space: nowrap;
}

.req-pill.done {
    border-color: rgba(76, 175, 80, 0.35);
    background: rgba(76, 175, 80, 0.10);
    color: var(--accent-green);
    font-weight: 700;
}

.req-pill.todo {
    border-color: rgba(0, 0, 0, 0.08);
    color: var(--text-secondary);
}

.btn-nav {
    padding: 12px 32px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-back {
    background: var(--accent-blue);
    color: white;
    border: none;
}

.btn-back:hover:not(:disabled) {
    background: #3a7bc8;
    transform: translateY(-2px);
}

.btn-back:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring-blue);
}

.btn-back:disabled {
    background: #a0c4e8;
    cursor: not-allowed;
    opacity: 0.6;
}

.btn-continue {
    background: linear-gradient(135deg, #2c3e50 0%, #1a252f 100%);
    color: white;
    border: none;
}

.btn-continue:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.btn-continue:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.btn-continue:disabled {
    background: #cccccc;
    cursor: not-allowed;
    opacity: 0.6;
}

/* Warning Timer Animation */
.timer-warning {
    animation: timerFlash 0.5s ease-in-out infinite;
}

@keyframes timerFlash {
    0%, 100% { color: var(--accent-red); }
    50% { color: #ff6b6b; }
}

/* Inactive Status */
.status-inactive #status-text {
    color: var(--accent-red);
}

/* Responsive */
@media (max-width: 900px) {
    .chat-container {
        grid-template-columns: 1fr;
    }
    
    header {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .header-instructions {
        padding: 0;
    }

    .header-instructions-row {
        flex-direction: column;
        gap: 10px;
    }
    
    .score-row {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .score-label {
        min-width: auto;
    }
}