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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

/* ==========================================
   Login Overlay
   ========================================== */
.login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.login-overlay.hidden {
    display: none;
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    animation: fadeIn 0.4s ease;
}

.login-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

.login-header h1 {
    font-size: 2rem;
    margin-bottom: 6px;
}

.login-header p {
    font-size: 1rem;
    opacity: 0.9;
}

.login-form {
    padding: 30px;
}

.login-field {
    margin-bottom: 18px;
}

.login-field label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: #475569;
    margin-bottom: 6px;
}

.login-field input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    color: #1e293b;
    transition: border-color 0.2s;
}

.login-field input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

.login-error {
    background: #fee2e2;
    color: #dc2626;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 16px;
    text-align: center;
}

.login-error.hidden {
    display: none;
}

.btn-login {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

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

.btn-login:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.container {
    width: 100%;
    max-width: 900px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

/* Header */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

.header-top {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.btn-logout {
    position: absolute;
    right: 0;
    padding: 8px 18px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.2s;
}

.btn-logout:hover {
    background: rgba(255, 255, 255, 0.3);
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Main Content */
.main-content {
    padding: 30px;
}

/* Status Panel */
.status-panel {
    margin-bottom: 20px;
}

.status-indicator {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    background: #f7f9fc;
    border-radius: 10px;
    border-left: 4px solid #667eea;
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #94a3b8;
    margin-right: 12px;
    transition: background-color 0.3s;
}

.status-indicator.connected .status-dot {
    background: #10b981;
    box-shadow: 0 0 10px #10b981;
    animation: pulse 2s infinite;
}

.status-indicator.recording .status-dot {
    background: #ef4444;
    box-shadow: 0 0 10px #ef4444;
    animation: pulse 1s infinite;
}

.status-indicator.processing .status-dot {
    background: #f59e0b;
    box-shadow: 0 0 10px #f59e0b;
    animation: pulse 1.5s infinite;
}

.status-indicator.speaking .status-dot {
    background: #3b82f6;
    box-shadow: 0 0 10px #3b82f6;
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.status-text {
    font-weight: 500;
    color: #1e293b;
}

/* Conversation Area */
.conversation-area {
    margin-bottom: 20px;
}

.conversation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.conversation-header h2 {
    font-size: 1.5rem;
    color: #1e293b;
}

.btn-clear {
    padding: 8px 16px;
    background: #f1f5f9;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    color: #64748b;
    transition: all 0.2s;
}

.btn-clear:hover {
    background: #e2e8f0;
    color: #475569;
}

.conversation-transcript {
    height: 400px;
    overflow-y: auto;
    padding: 20px;
    background: #f8fafc;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
}

.welcome-message {
    text-align: center;
    color: #64748b;
    padding: 60px 20px;
}

.welcome-message p {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.help-text {
    font-size: 0.9rem;
    opacity: 0.8;
}

.message {
    margin-bottom: 15px;
    animation: fadeIn 0.3s;
}

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

.message-bubble {
    display: inline-block;
    padding: 12px 18px;
    border-radius: 18px;
    max-width: 80%;
    word-wrap: break-word;
}

.message-user .message-bubble {
    background: #667eea;
    color: white;
}

.message-assistant .message-bubble {
    background: #e2e8f0;
    color: #1e293b;
}

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

/* Agent Configuration */
.agent-config {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Script Status Bar */
.script-status-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 18px;
    background: #fef3c7;
    border: 1px solid #fbbf24;
    border-radius: 10px;
    transition: all 0.3s;
}

.script-status-bar.active {
    background: #d1fae5;
    border-color: #10b981;
}

.script-status-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.script-status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #f59e0b;
    transition: background 0.3s;
}

.script-status-bar.active .script-status-dot {
    background: #10b981;
    box-shadow: 0 0 8px #10b981;
    animation: pulse 2s infinite;
}

#scriptStatusLabel {
    font-weight: 600;
    font-size: 0.95rem;
    color: #1e293b;
}

.script-actions {
    display: flex;
    gap: 8px;
}

.btn-activate {
    padding: 8px 20px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.2s;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.btn-activate:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

.btn-deactivate {
    padding: 8px 20px;
    background: #fee2e2;
    color: #dc2626;
    border: 1px solid #fca5a5;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.2s;
}

.btn-deactivate:hover {
    background: #fecaca;
}

.btn-save-script {
    padding: 8px 20px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.2s;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.btn-save-script:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

/* Saved Scripts Panel */
.saved-scripts-panel {
    padding: 20px 30px;
}

.saved-scripts-header {
    margin-bottom: 12px;
}

.saved-scripts-header h2 {
    font-size: 1.1rem;
    color: #1e293b;
}

.saved-scripts-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.no-scripts-msg {
    color: #94a3b8;
    font-size: 0.9rem;
    text-align: center;
    padding: 15px;
}

.saved-script-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    transition: all 0.2s;
}

.saved-script-card:hover {
    border-color: #cbd5e1;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.saved-script-card.active-card {
    border-color: #10b981;
    background: #f0fdf4;
}

.saved-script-info {
    flex: 1;
    cursor: pointer;
}

.saved-script-name {
    font-weight: 600;
    font-size: 0.95rem;
    color: #1e293b;
}

.saved-script-meta {
    font-size: 0.8rem;
    color: #94a3b8;
    margin-top: 2px;
}

.saved-script-actions {
    display: flex;
    gap: 6px;
}

.saved-script-actions button {
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

.btn-load-script {
    background: #ede9fe;
    color: #7c3aed;
}

.btn-load-script:hover {
    background: #ddd6fe;
}

.btn-use-script {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.btn-use-script:hover {
    transform: translateY(-1px);
}

.btn-delete-script {
    background: #fee2e2;
    color: #dc2626;
}

.btn-delete-script:hover {
    background: #fecaca;
}

.config-panel {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 18px;
}

.config-panel-header {
    margin-bottom: 12px;
}

.config-panel-header h3 {
    font-size: 1.1rem;
    color: #334155;
    font-weight: 700;
}

.config-field {
    margin-bottom: 12px;
}

.config-field:last-child {
    margin-bottom: 0;
}

.config-field label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: #64748b;
    margin-bottom: 6px;
}

.config-field textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.95rem;
    color: #1e293b;
    resize: vertical;
    transition: border-color 0.2s;
    line-height: 1.5;
}

.config-field textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Questions list */
#questionsList {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 8px;
}

.question-item {
    display: flex;
    gap: 8px;
    align-items: center;
}

.question-input {
    flex: 1;
    padding: 9px 14px;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.95rem;
    color: #1e293b;
    transition: border-color 0.2s;
}

.question-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.btn-remove-q {
    width: 32px;
    height: 32px;
    border: none;
    background: #fee2e2;
    color: #ef4444;
    border-radius: 6px;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
}

.btn-remove-q:hover {
    background: #fecaca;
    color: #dc2626;
}

.btn-add-q {
    padding: 8px 16px;
    background: #eff6ff;
    color: #3b82f6;
    border: 1px dashed #93c5fd;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.2s;
    width: 100%;
}

.btn-add-q:hover {
    background: #dbeafe;
    border-color: #3b82f6;
}

/* Phone Dialer */
.dialer-panel {
    background: #f0f4ff;
    border: 2px solid #667eea;
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 20px;
}

.dialer-header {
    margin-bottom: 16px;
}

.dialer-header h2 {
    font-size: 1.3rem;
    color: #1e293b;
    margin-bottom: 4px;
}

.dialer-subtitle {
    font-size: 0.85rem;
    color: #64748b;
}

.dialer-input-row {
    display: flex;
    gap: 10px;
    align-items: center;
}

.phone-input {
    flex: 1;
    padding: 14px 18px;
    font-size: 1.15rem;
    border: 2px solid #cbd5e1;
    border-radius: 12px;
    outline: none;
    transition: border-color 0.2s;
    font-family: inherit;
    letter-spacing: 0.5px;
}

.phone-input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

.btn-call {
    padding: 14px 28px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
    white-space: nowrap;
}

.btn-call:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(16, 185, 129, 0.4);
}

.btn-call:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-hangup {
    padding: 14px 28px;
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
    white-space: nowrap;
    animation: breathe 2s infinite;
}

.btn-hangup:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(239, 68, 68, 0.4);
}

.call-status {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 14px;
    padding: 10px 16px;
    background: white;
    border-radius: 10px;
}

.call-status.hidden {
    display: none;
}

.call-status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #10b981;
    animation: pulse 1.5s infinite;
}

.call-status.error .call-status-dot {
    background: #ef4444;
    animation: none;
}

.call-status-text {
    font-size: 0.95rem;
    font-weight: 500;
    color: #334155;
}

/* Dialer Options */
.dialer-options {
    margin-top: 14px;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    user-select: none;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #cbd5e1;
    border-radius: 26px;
    transition: 0.3s;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: 0.3s;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.toggle-switch input:checked + .toggle-slider {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(22px);
}

.toggle-text {
    font-weight: 600;
    color: #334155;
    font-size: 0.95rem;
}

.toggle-hint {
    font-size: 0.8rem;
    color: #94a3b8;
}

.section-divider {
    display: flex;
    align-items: center;
    margin: 20px 0;
    gap: 16px;
}

.section-divider::before,
.section-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #e2e8f0;
}

.section-divider span {
    font-size: 0.85rem;
    color: #94a3b8;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Control Panel */
.control-panel {
    text-align: center;
    margin-bottom: 20px;
}

.btn-primary {
    padding: 16px 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

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

.btn-large {
    padding: 20px 60px;
    font-size: 1.2rem;
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.btn-icon {
    font-size: 1.5rem;
}

.btn-primary.active {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    animation: breathe 2s infinite;
}

@keyframes breathe {
    0%, 100% {
        box-shadow: 0 4px 15px rgba(239, 68, 68, 0.4);
    }
    50% {
        box-shadow: 0 6px 25px rgba(239, 68, 68, 0.6);
    }
}

.btn-secondary {
    padding: 16px 40px;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.6);
}

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

.btn-interrupt {
    margin-left: 15px;
}

/* Volume Indicator */
.volume-indicator {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 4px;
    height: 40px;
}

.volume-bars {
    display: flex;
    align-items: flex-end;
    gap: 6px;
}

.volume-bar {
    width: 6px;
    height: 8px;
    background: #cbd5e1;
    border-radius: 3px;
    transition: all 0.1s;
}

.volume-indicator.active .volume-bar:nth-child(1) {
    height: 15px;
    background: #10b981;
    animation: volumeWave 0.6s infinite;
}

.volume-indicator.active .volume-bar:nth-child(2) {
    height: 25px;
    background: #10b981;
    animation: volumeWave 0.6s infinite 0.1s;
}

.volume-indicator.active .volume-bar:nth-child(3) {
    height: 35px;
    background: #10b981;
    animation: volumeWave 0.6s infinite 0.2s;
}

.volume-indicator.active .volume-bar:nth-child(4) {
    height: 25px;
    background: #10b981;
    animation: volumeWave 0.6s infinite 0.3s;
}

.volume-indicator.active .volume-bar:nth-child(5) {
    height: 15px;
    background: #10b981;
    animation: volumeWave 0.6s infinite 0.4s;
}

@keyframes volumeWave {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 1;
    }
}

/* Summary Panel */
.summary-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 600px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    z-index: 1000;
    max-height: 80vh;
    overflow-y: auto;
}

.summary-panel.hidden {
    display: none;
}

.summary-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #e2e8f0;
}

.summary-header h2 {
    color: #1e293b;
}

.btn-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: #64748b;
    line-height: 1;
    transition: color 0.2s;
}

.btn-close:hover {
    color: #1e293b;
}

.summary-content {
    padding: 20px;
}

.summary-section {
    margin-bottom: 20px;
}

.summary-section h3 {
    color: #667eea;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.summary-section p,
.summary-section ul {
    color: #475569;
    line-height: 1.6;
}

.summary-section ul {
    padding-left: 20px;
}

.summary-section li {
    margin-bottom: 8px;
}

/* Settings Panel */
.settings-panel {
    margin-top: 20px;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    overflow: hidden;
}

.settings-panel summary {
    padding: 15px 20px;
    background: #f8fafc;
    cursor: pointer;
    font-weight: 600;
    color: #475569;
    user-select: none;
}

.settings-panel summary:hover {
    background: #f1f5f9;
}

.settings-content {
    padding: 20px;
}

.setting-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.setting-item label {
    min-width: 140px;
    font-weight: 500;
    color: #475569;
}

.setting-item select,
.setting-item input[type="range"] {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    font-size: 1rem;
}

.setting-item select:focus,
.setting-item input:focus {
    outline: none;
    border-color: #667eea;
}

/* API Keys & Configuration Panel */
.api-settings-panel {
    border-color: #c7d2fe;
}

.api-settings-panel summary {
    background: #eef2ff;
    color: #4338ca;
}

.api-settings-panel summary:hover {
    background: #e0e7ff;
}

.api-settings-notice {
    background: #fffbeb;
    border: 1px solid #fbbf24;
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 0.85rem;
    color: #92400e;
    margin-bottom: 20px;
    line-height: 1.5;
}

.api-settings-group {
    margin-bottom: 20px;
    padding: 16px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
}

.api-settings-group h4 {
    font-size: 0.95rem;
    color: #667eea;
    margin-bottom: 14px;
    padding-bottom: 8px;
    border-bottom: 1px solid #e2e8f0;
    font-weight: 700;
}

.api-setting-item {
    margin-bottom: 12px;
}

.api-setting-item:last-child {
    margin-bottom: 0;
}

.api-setting-item label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: #64748b;
    margin-bottom: 5px;
}

.api-input-row {
    display: flex;
    gap: 8px;
    align-items: center;
}

.api-key-input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
    font-size: 0.88rem;
    color: #1e293b;
    transition: border-color 0.2s;
    background: white;
}

.api-key-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.api-key-input::placeholder {
    color: #94a3b8;
    font-family: inherit;
}

.btn-toggle-vis {
    padding: 10px 14px;
    background: #f1f5f9;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
    color: #64748b;
    white-space: nowrap;
    transition: all 0.2s;
    flex-shrink: 0;
}

.btn-toggle-vis:hover {
    background: #e2e8f0;
    color: #475569;
}

.api-settings-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid #e2e8f0;
}

.btn-save-settings {
    padding: 12px 28px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-save-settings:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.4);
}

.btn-save-settings:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.save-status {
    font-size: 0.9rem;
    font-weight: 600;
    color: #10b981;
    animation: fadeIn 0.3s;
}

.save-status.error {
    color: #ef4444;
}

.save-status.hidden {
    display: none;
}

/* Footer */
.footer {
    text-align: center;
    padding: 20px;
    background: #f8fafc;
    color: #64748b;
    font-size: 0.9rem;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 999;
}

.loading-overlay.hidden {
    display: none;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f4f6;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.loading-text {
    color: white;
    margin-top: 20px;
    font-size: 1.1rem;
}

/* Error Toast */
.error-toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #fee2e2;
    border: 1px solid #ef4444;
    border-radius: 10px;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
    animation: slideIn 0.3s;
    z-index: 1001;
}

.error-toast.hidden {
    display: none;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
    }
    to {
        transform: translateX(0);
    }
}

.error-icon {
    font-size: 1.5rem;
}

.error-message {
    color: #991b1b;
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header h1 {
        font-size: 2rem;
    }

    .conversation-transcript {
        height: 300px;
    }

    .btn-large {
        padding: 16px 40px;
        font-size: 1rem;
    }

    .summary-panel {
        width: 95%;
    }
}

/* Scrollbar Styling */
.conversation-transcript::-webkit-scrollbar {
    width: 8px;
}

.conversation-transcript::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 10px;
}

.conversation-transcript::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 10px;
}

.conversation-transcript::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}