/* Modern CSS Variables for Light Theme */
:root {
    --primary-color: #0066cc;
    --secondary-color: #28a745;
    --accent-color: #ffc107;
    --background-gradient: linear-gradient(135deg, #f8f9ff 0%, #fff 100%);
    --card-shadow: 0 4px 20px rgba(0, 102, 204, 0.08);
    --card-shadow-hover: 0 8px 32px rgba(0, 102, 204, 0.15);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --gradient-primary: linear-gradient(135deg, #0066cc 0%, #004499 100%);
    --gradient-success: linear-gradient(135deg, #28a745 0%, #1e7e34 100%);
    --gradient-warning: linear-gradient(135deg, #ffc107 0%, #e0a800 100%);
    --message-font: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --husband-gradient: linear-gradient(135deg, #e8f5fe 0%, #d1ebfa 100%);
    --husband-border: #4fb3e8;
    --husband-text: #0a4b76;
    --wife-gradient: linear-gradient(135deg, #fff8e1 0%, #ffecb3 100%);
    --wife-border: #ffb74d;
    --wife-text: #784c00;
    --counselor-gradient: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
    --counselor-border: #66bb6a;
    --counselor-text: #1b5e20;
    --husband-interrupt-gradient: linear-gradient(135deg, #d4eeff 0%, #b8e2ff 100%);
    --husband-interrupt-border: #0d8aee;
    --wife-interrupt-gradient: linear-gradient(135deg, #fff0cc 0%, #ffe499 100%);
    --wife-interrupt-border: #ff9800;
    --interrupt-indicator: #ff5252;
}

/* Global Styles */
body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--background-gradient);
    min-height: 100vh;
    color: #2c3e50;
    line-height: 1.6;
}

/* Enhanced Navbar */
.navbar {
    background: linear-gradient(135deg, #0066cc 0%, #004499 100%) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 102, 204, 0.1);
    min-height: auto;
    padding-top: 0.25rem;
    padding-bottom: 0.25rem;
}

.navbar-brand {
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    padding: 0.25rem 0;
    color: #ffffff !important;
}

/* Modern Card Design */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    transition: var(--transition);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-2px);
}

.card-header {
    background: var(--gradient-primary);
    border: none;
    padding: 1rem;
    color: white;
}

.card-title {
    font-weight: 600;
    font-size: 1.3rem;
    margin: 0;
    display: flex;
    align-items: center;
}

.card-body {
    padding: 1.5rem;
}

/* Enhanced Scenario Cards */
.scenario-card {
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    border: 2px solid transparent;
    height: 100%;
}

.scenario-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--primary-color);
}

.scenario-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition);
}

.scenario-card:hover::before {
    opacity: 1;
}

.scenario-card .card-title {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
}

.scenario-card .btn {
    border-radius: 8px;
    font-weight: 500;
    padding: 0.5rem 1.2rem;
    transition: var(--transition);
}

/* Modern Chat-Style Messages */
.conversation-message {
    margin-bottom: 1.2rem;
    max-width: 80%;
    position: relative;
    animation: messageSlideIn 0.3s ease-out;
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Client Messages (Left Side) */
.conversation-message.husband,
.conversation-message.wife {
    margin-left: 0;
    margin-right: auto;
}

/* Husband specific styling */
.conversation-message.husband .message-bubble {
    background: var(--husband-gradient);
    border: 1px solid var(--husband-border);
    border-left: 3px solid var(--husband-border);
    border-radius: 18px 18px 18px 4px;
    padding: 14px 18px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
    position: relative;
}

.conversation-message.husband .speaker-name {
    color: var(--husband-text);
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 5px;
    letter-spacing: 0.01em;
}

.conversation-message.husband .message-content {
    color: var(--husband-text);
    line-height: 1.7;
    font-size: 0.95rem;
    font-family: var(--message-font);
    letter-spacing: 0.015em;
}

/* Wife specific styling */
.conversation-message.wife .message-bubble {
    background: var(--wife-gradient);
    border: 1px solid var(--wife-border);
    border-left: 3px solid var(--wife-border);
    border-radius: 18px 18px 18px 4px;
    padding: 14px 18px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
    position: relative;
}

.conversation-message.wife .speaker-name {
    color: var(--wife-text);
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 5px;
    letter-spacing: 0.01em;
}

.conversation-message.wife .message-content {
    color: var(--wife-text);
    line-height: 1.7;
    font-size: 0.95rem;
    font-family: var(--message-font);
    letter-spacing: 0.015em;
}

.conversation-message.husband .message-bubble::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: -6px;
    width: 0;
    height: 0;
    border: 6px solid transparent;
    border-right-color: #d1ebfa;
    border-bottom: 0;
    transform: rotate(45deg);
}

.conversation-message.wife .message-bubble::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: -6px;
    width: 0;
    height: 0;
    border: 6px solid transparent;
    border-right-color: #ffecb3;
    border-bottom: 0;
    transform: rotate(45deg);
}

/* Counselor Messages (Right Side) */
.conversation-message.counselor {
    margin-left: auto;
    margin-right: 0;
}

.conversation-message.counselor .message-bubble {
    background: var(--counselor-gradient);
    border: 1px solid var(--counselor-border);
    border-radius: 18px 18px 4px 18px;
    padding: 14px 18px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06);
    position: relative;
}

.conversation-message.counselor .message-bubble::before {
    content: '';
    position: absolute;
    bottom: 0;
    right: -6px;
    width: 0;
    height: 0;
    border: 6px solid transparent;
    border-left-color: var(--counselor-border);
    border-bottom: 0;
    transform: rotate(-45deg);
}

/* Speaker Name Styling */
.speaker-name {
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 5px;
    display: flex;
    align-items: center;
}

.speaker-name i {
    margin-right: 0.5rem;
    font-size: 0.95rem;
}

.conversation-message.counselor .speaker-name {
    color: var(--counselor-text);
}

/* Message Content */
.message-content {
    line-height: 1.7;
    font-size: 0.95rem;
    word-wrap: break-word;
    font-family: var(--message-font);
    letter-spacing: 0.015em;
}

.conversation-message.counselor .message-content {
    color: var(--counselor-text);
}

/* System Messages (Center) */
.conversation-message.system {
    margin-left: auto;
    margin-right: auto;
    max-width: 60%;
}

.conversation-message.system .message-bubble {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 1px solid #dee2e6;
    border-radius: 12px;
    padding: 10px 16px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    text-align: center;
    position: relative;
}

.conversation-message.system .speaker-name {
    color: #6c757d;
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 3px;
    justify-content: center;
}

.conversation-message.system .message-content {
    color: #495057;
    line-height: 1.5;
    font-size: 0.9rem;
    font-weight: 500;
    font-family: var(--message-font);
}

/* Remove timestamp display */
.message-timestamp {
    display: none;
}

/* Interruption Indicator */
.interruption-indicator {
    background: linear-gradient(135deg, var(--interrupt-indicator) 0%, #e53935 100%);
    color: white;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 12px;
    margin-bottom: 6px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    box-shadow: 0 1px 3px rgba(229, 57, 53, 0.4);
    animation: pulseInterruption 0.5s ease-out;
}

@keyframes pulseInterruption {
    0% {
        transform: scale(0.8);
        opacity: 0;
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Special styling for interruption messages */
.conversation-message.interruption.husband .message-bubble {
    border-left: 3px solid var(--interrupt-indicator) !important;
    background: var(--husband-interrupt-gradient) !important;
    border: 1px solid var(--husband-interrupt-border) !important;
}

.conversation-message.interruption.wife .message-bubble {
    border-left: 3px solid var(--interrupt-indicator) !important;
    background: var(--wife-interrupt-gradient) !important;
    border: 1px solid var(--wife-interrupt-border) !important;
}

.conversation-message.interruption.husband .message-bubble::before {
    border-right-color: #b8e2ff !important;
}

.conversation-message.interruption.wife .message-bubble::before {
    border-right-color: #ffe499 !important;
}

/* Emphasize speaker name for interruptions */
.conversation-message.interruption .speaker-name {
    position: relative;
}

.conversation-message.interruption .speaker-name::after {
    content: "割り込み";
    font-size: 0.65rem;
    background-color: var(--interrupt-indicator);
    color: white;
    padding: 1px 4px;
    border-radius: 4px;
    margin-left: 5px;
    font-weight: 400;
    vertical-align: middle;
}

/* Conversation History Container */
#conversation-history {
    background: #f8f9fa;
    border: 1px solid rgba(0, 102, 204, 0.1);
    border-radius: var(--border-radius);
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.03);
    scroll-behavior: smooth;
    height: 330px;
    padding: 20px;
}

#conversation-history:empty::before {
    content: "💬 対話が開始されると、ここに会話が表示されます...";
    color: #6c757d;
    font-style: italic;
    display: block;
    text-align: center;
    padding: 3rem;
    font-size: 1.1rem;
}

/* Modern Form Controls */
.form-control, .form-select {
    border: 2px solid rgba(0, 102, 204, 0.1);
    border-radius: 10px;
    padding: 0.8rem 1rem;
    font-size: 0.95rem;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.9);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 102, 204, 0.15);
    background: white;
}

/* Enhanced Buttons */
.btn {
    border-radius: 10px;
    font-weight: 500;
    padding: 0.7rem 1.5rem;
    transition: var(--transition);
    border: none;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--gradient-primary);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.4);
    background: linear-gradient(135deg, #0052a3 0%, #003d7a 100%);
}

.btn-success {
    background: var(--gradient-success);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.4);
}

.btn-outline-danger {
    border: 2px solid #dc3545;
    color: #dc3545;
    background: transparent;
}

.btn-outline-danger:hover {
    background: #dc3545;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(220, 53, 69, 0.3);
}

.btn-outline-secondary {
    border: 2px solid #6c757d;
    color: #6c757d;
    background: transparent;
}

.btn-outline-secondary:hover {
    background: #6c757d;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(108, 117, 125, 0.3);
}

/* Range Slider Enhancement */
.form-range {
    height: 6px;
    background: linear-gradient(to right, #e9ecef 0%, var(--primary-color) 50%, #e9ecef 100%);
    border-radius: 3px;
}

.form-range::-webkit-slider-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--gradient-primary);
    border: 3px solid white;
    box-shadow: 0 2px 8px rgba(0, 102, 204, 0.3);
    cursor: pointer;
}

.form-range::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--gradient-primary);
    border: 3px solid white;
    box-shadow: 0 2px 8px rgba(0, 102, 204, 0.3);
    cursor: pointer;
}

/* Alert Enhancements */
.alert {
    border: none;
    border-radius: var(--border-radius);
    padding: 1.2rem 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    animation: slideInDown 0.4s ease;
}

/* Flash Messages - Fixed position at top right */
#error-alert,
#success-alert {
    position: fixed;
    top: 10px;
    right: 20px;
    z-index: 1050;
    max-width: 350px;
    margin-bottom: 0;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    padding: 0.8rem 1.2rem;
    font-size: 0.9rem;
    line-height: 1.3;
}

#error-alert.show,
#success-alert.show {
    opacity: 1;
    transform: translateX(0);
}

/* Add close button for flash messages */
.alert-dismissible {
    padding-right: 3rem;
}

.alert .btn-close {
    position: absolute;
    top: 50%;
    right: 1rem;
    transform: translateY(-50%);
    background: none;
    border: none;
    opacity: 0.9;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0;
    width: 1.5rem;
    height: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.alert .btn-close:hover {
    opacity: 1;
    color: white;
}

/* Responsive adjustments for mobile */
@media (max-width: 768px) {
    #error-alert,
    #success-alert {
        left: 10px;
        right: 10px;
        top: 5px;
        max-width: calc(100vw - 20px);
        transform: translateY(-100%);
        padding: 0.7rem 1rem;
        font-size: 0.85rem;
    }
    
    #error-alert.show,
    #success-alert.show {
        transform: translateY(0);
    }
}

.alert-success {
    background: rgba(40, 167, 69, 0.95);
    border-left: 4px solid var(--secondary-color);
    color: #ffffff;
    backdrop-filter: blur(10px);
}

.alert-danger {
    background: rgba(220, 53, 69, 0.95);
    border-left: 4px solid #dc3545;
    color: #ffffff;
    backdrop-filter: blur(10px);
}

/* セッション終了用の赤寄りアラート */
.alert-session-end {
    background: rgba(220, 53, 69, 0.92);
    border-left: 4px solid #dc3545;
    color: #ffffff;
    backdrop-filter: blur(10px);
}

/* セッション開始用の緑系アラート */
.alert-session-start {
    background: rgba(40, 167, 69, 0.95);
    border-left: 4px solid #28a745;
    color: #ffffff;
    backdrop-filter: blur(10px);
}

.alert-info {
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.1) 0%, rgba(0, 102, 204, 0.05) 100%);
    border-left: 4px solid var(--primary-color);
    color: #0c5460;
}

.alert-light {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border: 1px solid rgba(0, 102, 204, 0.1);
    color: #495057;
}

/* Loading Spinner */
.spinner-border {
    width: 3rem;
    height: 3rem;
    border-width: 0.3em;
}

.loading-spinner {
    display: inline-block;
    width: 1.2rem;
    height: 1.2rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .scenario-card {
        margin-bottom: 1rem;
    }
}

@media (max-width: 991px) {
    /* Medium devices - force flex row layout */
    #session-layout > .row {
        display: flex;
        flex-direction: row;
        flex-wrap: nowrap;
        margin-right: -0.25rem;
        margin-left: -0.25rem;
    }
    
    #session-layout .col-lg-3,
    #session-layout .col-lg-6 {
        padding-right: 0.25rem;
        padding-left: 0.25rem;
    }
}

@media (max-width: 767px) {
    /* On small devices, stack columns vertically */
    #session-layout > .row {
        flex-direction: column;
    }
    
    /* 会話履歴の高さをモバイルで調整 */
    #conversation-history {
        height: 250px;
        padding: 12px;
    }
    
    /* Mobile message adjustments */
    .conversation-message {
        max-width: 90%;
        margin-bottom: 1rem;
    }
    
    .message-bubble {
        padding: 12px 16px;
    }
    
    .speaker-name {
        font-size: 0.85rem;
        margin-bottom: 4px;
    }
    
    .message-content {
        font-size: 0.9rem;
        line-height: 1.6;
    }
    
    .card-body {
        padding: 1.5rem;
    }
    
    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.85rem;
    }
    
    #session-layout {
        margin-bottom: 2rem;
    }
}

/* Enhanced 3-Column Layout on Desktop */
@media (min-width: 992px) {
    #session-layout > .row {
        display: flex;
        flex-direction: row;
        flex-wrap: nowrap;
    }
    
    #session-layout .col-lg-3 {
        flex: 0 0 22%;
        max-width: 22%;
    }
    
    #session-layout .col-lg-6 {
        flex: 0 0 56%;
        max-width: 56%;
    }
}

/* Force horizontal layout for tablets */
@media (min-width: 768px) and (max-width: 991px) {
    #session-layout .col-lg-3 {
        flex: 0 0 25%;
        max-width: 25%;
    }
    
    #session-layout .col-lg-6 {
        flex: 0 0 50%;
        max-width: 50%;
    }
}

/* Remove the nowrap which can cause layout issues */
#session-layout .row {
    display: flex;
    gap: 1rem;
}

/* Footer Enhancement */
footer {
    background: linear-gradient(135deg, #f8f9ff 0%, #ffffff 100%) !important;
    border-top: 1px solid rgba(0, 102, 204, 0.1) !important;
}

/* Modal Enhancements */
.modal-content {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.modal-header {
    background: var(--gradient-primary);
    color: white;
    border-bottom: none;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.modal-body {
    padding: 2rem;
    line-height: 1.7;
}

/* Instructions Button */
.position-fixed .btn {
    border-radius: 50px;
    padding: 0.7rem 1.2rem;
    box-shadow: 0 6px 20px rgba(23, 162, 184, 0.3);
    animation: fadeIn 0.5s ease;
}

/* Animations */
@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Session Layout Enhancements */
#session-layout {
    animation: fadeIn 0.5s ease;
}

#session-layout .card-header.bg-gradient {
    background: var(--gradient-primary) !important;
}

#session-layout .card-header.bg-info {
    background: linear-gradient(135deg, #17a2b8 0%, #138496 100%) !important;
}

/* Quick Actions Button Styling */
.btn-outline-secondary {
    font-size: 0.85rem;
    padding: 0.5rem 1rem;
}

/* カウンセラーメッセージ入力エリア調整 */
#counselor-message {
    resize: none;
    min-height: 120px;
}

/* 送信ボタンのスタイル改善 */
#send-message {
    width: 90px;
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
    line-height: 1.2;
    min-height: 80px;
}

#send-message small {
    margin-top: 2px;
    font-weight: 400;
    opacity: 0.9;
}

/* モバイル対応で送信ボタン調整 */
@media (max-width: 576px) {
    #send-message {
        width: 70px;
        padding: 0.5rem;
        min-height: 70px;
    }
    
    #send-message small {
        font-size: 0.6rem !important;
    }
    
    /* モバイル用送信ボタンのスタイル */
    #send-message-mobile {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
        border-radius: 8px;
        min-width: 100px;
    }
    
    /* モバイル用テキストエリアの調整 */
    #counselor-message-mobile {
        resize: none;
        min-height: 100px;
        font-size: 0.9rem;
    }
}