/* Interview Dashboard - Modern UI Styles */

:root {
    /* Modern Color Palette */
    --primary-color: #6366f1;
    --primary-light: #a5b4fc;
    --primary-dark: #4338ca;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #06b6d4;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --bg-ai-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    
    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-white: #ffffff;
    
    /* Border & Shadow */
    --border-color: #e2e8f0;
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* Global Styles */
* {
    transition: all var(--transition-fast);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    line-height: 1.6;
}

/* Layout */
.vh-100 {
    height: calc(100vh - 80px);
}

/* Navigation */
.navbar {
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95) !important;
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary-color) !important;
}

/* Modern Upload Areas */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    transition: all var(--transition-normal);
    cursor: pointer;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.upload-area::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
    transition: left var(--transition-slow);
}

.upload-area:hover {
    border-color: var(--primary-color);
    background: var(--bg-secondary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.upload-area:hover::before {
    left: 100%;
}

.upload-area.drag-over {
    border-color: var(--primary-color);
    background: var(--bg-secondary);
    box-shadow: var(--shadow-lg);
    transform: scale(1.02);
}

.upload-area-small {
    border: 1px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-normal);
    cursor: pointer;
    background: var(--bg-primary);
}

.upload-area-small:hover {
    border-color: var(--primary-color);
    background: var(--bg-secondary);
    box-shadow: var(--shadow-sm);
}

.upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.upload-content i {
    color: var(--text-muted);
    transition: color var(--transition-normal);
}

.upload-area:hover .upload-content i {
    color: var(--primary-color);
}

/* Modern File List */
.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.file-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.file-item .file-info {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.file-item .file-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.file-item .file-size {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.file-item .btn-remove {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.file-item .btn-remove:hover {
    transform: scale(1.05);
}

/* Modern Chat Interface */
#chatMessages {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
}

.message {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    max-width: 85%;
    box-shadow: var(--shadow-sm);
    position: relative;
    animation: messageSlideIn 0.3s ease-out;
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user {
    background: var(--bg-ai-gradient);
    color: var(--text-white);
    margin-left: auto;
    border-bottom-right-radius: 6px;
}

.message.transcription {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-bottom-left-radius: 6px;
}

.message.system {
    background: linear-gradient(45deg, var(--warning-color), #fbbf24);
    color: var(--text-white);
    text-align: center;
    max-width: 100%;
    font-weight: 500;
    border-radius: var(--border-radius);
}

.message-time {
    font-size: 0.7rem;
    opacity: 0.8;
    margin-top: var(--spacing-xs);
    font-weight: 400;
}

.message.user .message-time {
    color: rgba(255, 255, 255, 0.8);
}

.message.transcription .message-time {
    color: var(--text-muted);
}

/* Modern AI Response Panel */
#aiResponses {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
}

.ai-response {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    animation: responseSlideIn 0.4s ease-out;
}

@keyframes responseSlideIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.ai-response::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--bg-ai-gradient);
}

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

.ai-response-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.ai-response-content {
    line-height: 1.7;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.ai-response-time {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 500;
}

.response-type {
    font-size: 0.7rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.response-type.technical {
    background: linear-gradient(45deg, #e0f2fe, #b3e5fc);
    color: #01579b;
    border: 1px solid #81d4fa;
}

.response-type.behavioral {
    background: linear-gradient(45deg, #f3e5f5, #e1bee7);
    color: #4a148c;
    border: 1px solid #ce93d8;
}

.response-type.general {
    background: linear-gradient(45deg, #e8f5e8, #c8e6c9);
    color: #1b5e20;
    border: 1px solid #a5d6a7;
}

/* Modern Status Indicators */
.badge {
    font-weight: 600;
    font-size: 0.75rem;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-ready {
    background: linear-gradient(45deg, var(--success-color), #34d399) !important;
    color: var(--text-white) !important;
    box-shadow: 0 2px 4px rgba(16, 185, 129, 0.3);
}

.status-recording {
    background: linear-gradient(45deg, var(--danger-color), #f87171) !important;
    color: var(--text-white) !important;
    animation: pulse 2s infinite;
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.4);
}

.status-processing {
    background: linear-gradient(45deg, var(--warning-color), #fbbf24) !important;
    color: var(--text-white) !important;
    box-shadow: 0 2px 4px rgba(245, 158, 11, 0.3);
}

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

/* Modern Buttons */
.btn {
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: all var(--transition-normal);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--bg-ai-gradient);
    border: 1px solid var(--primary-dark);
    box-shadow: var(--shadow-md);
}

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

.btn-danger {
    background: linear-gradient(45deg, var(--danger-color), #f87171);
    box-shadow: var(--shadow-md);
}

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

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--border-radius-lg);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* Modern Form Controls */
.form-control, .form-select {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    font-size: 0.95rem;
    transition: all var(--transition-normal);
    background: var(--bg-primary);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    outline: none;
}

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

/* Audio Visualization */
.audio-bars {
    display: flex;
    align-items: end;
    gap: 2px;
    height: 20px;
}

.audio-bar {
    width: 3px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: height 0.1s ease;
}

/* Modern Responsive Design */
@media (max-width: 768px) {
    .container-fluid .row .col-md-6 {
        min-height: 50vh;
    }
    
    .upload-area {
        padding: var(--spacing-lg);
    }
    
    .message {
        max-width: 95%;
    }
    
    .ai-response {
        padding: var(--spacing-lg);
    }
    
    .navbar-brand {
        font-size: 1.1rem;
    }
}

/* Modern Scrollbar Styling */
#chatMessages::-webkit-scrollbar,
#aiResponses::-webkit-scrollbar {
    width: 6px;
}

#chatMessages::-webkit-scrollbar-track,
#aiResponses::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 3px;
}

#chatMessages::-webkit-scrollbar-thumb,
#aiResponses::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 3px;
    transition: background var(--transition-fast);
}

#chatMessages::-webkit-scrollbar-thumb:hover,
#aiResponses::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Modern Loading States */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    border-radius: var(--border-radius-lg);
}

/* Enhanced Typing Indicator */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    color: var(--text-secondary);
    font-style: italic;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    margin: var(--spacing-md) 0;
}

.typing-dots {
    display: flex;
    gap: 3px;
}

.typing-dot {
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: typing 1.5s infinite;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.4;
    }
    30% {
        transform: translateY(-8px);
        opacity: 1;
    }
}

/* Modern Alert Messages */
.error-message {
    background: linear-gradient(45deg, #fef2f2, #fee2e2);
    color: var(--danger-color);
    border: 1px solid #fecaca;
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin: var(--spacing-sm) 0;
    box-shadow: var(--shadow-sm);
}

.success-message {
    background: linear-gradient(45deg, #f0fdf4, #dcfce7);
    color: var(--success-color);
    border: 1px solid #bbf7d0;
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin: var(--spacing-sm) 0;
    box-shadow: var(--shadow-sm);
}

/* Character Counter */
.char-counter {
    text-align: right;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.char-counter.warning {
    color: var(--warning-color);
}

.char-counter.danger {
    color: var(--danger-color);
}

/* Enhanced Session Selector */
#sessionSelector {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    box-shadow: var(--shadow-sm);
}

#sessionSelector:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Modern Gradient Backgrounds */
.bg-gradient {
    background: var(--bg-gradient);
}

/* Panel Headers */
.border-bottom {
    border-color: var(--border-color) !important;
}

.bg-light {
    background: var(--bg-secondary) !important;
}

/* Card-like Panels */
.col-md-6 {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    margin: var(--spacing-xs);
}

.col-md-6.border-end {
    border-color: var(--border-color) !important;
}

/* Dark Theme Support */
[data-bs-theme="dark"] {
    --bg-primary: #1e293b;
    --bg-secondary: #334155;
    --bg-tertiary: #475569;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #475569;
}

[data-bs-theme="dark"] .upload-area {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

[data-bs-theme="dark"] .message.transcription {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

[data-bs-theme="dark"] .ai-response {
    background: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

/* Modern Focus and Hover States */
.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Utility Classes */
.text-gradient {
    background: var(--bg-ai-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Collapsible upload section styles */
#uploadSectionHeader {
  transition: all 0.3s ease;
  border-radius: var(--border-radius);
  padding: 0.75rem;
  margin-bottom: 0.5rem;
}

#uploadSectionHeader:hover {
  background-color: rgba(var(--primary-rgb), 0.05);
}

#toggleUploadBtn {
  border: none;
  background: rgba(var(--primary-rgb), 0.1);
  color: var(--primary);
  padding: 0.375rem 0.75rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  transition: all 0.3s ease;
}

#toggleUploadBtn:hover {
  background: rgba(var(--primary-rgb), 0.2);
  transform: translateY(-1px);
}

#toggleUploadIcon {
  transition: transform 0.3s ease;
}

/* AI Responses Panel Enhanced */
#aiResponses {
  background: linear-gradient(135deg, var(--primary), var(--secondary)) !important;
}

#aiResponses .badge {
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

#aiResponses .badge:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.3);
}

/* Fixed responsive design for proper panel layout */
@media (max-width: 992px) {
  .col-lg-6 {
    min-height: 50vh;
    width: 100%;
  }
  
  .vh-100 {
    min-height: 100vh;
  }
}

/* Ensure panels stay side by side on larger screens */
@media (min-width: 993px) {
  .col-lg-6 {
    height: 100vh;
    max-width: 50%;
    flex: 0 0 50%;
  }
}