/* Modern MBA Counselor Chat Interface Styles */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --success-color: #10b981;

    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-dark: #0f172a;
    --bg-chat: #fafbfc;

    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-white: #ffffff;

    /* Border & Shadow */
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    --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);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
}

body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header Styles */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: var(--font-size-xl);
    color: var(--primary-color);
}

.logo i {
    font-size: var(--font-size-2xl);
}

.header-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success-color);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

/* Main Chat Container */
.chat-container {
    padding: var(--spacing-xl) 0;
    min-height: calc(100vh - 200px);
    padding-bottom: 120px;
    /* Space for input area */
}

/* Welcome Section */
.welcome-section {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    animation: slideUp 0.6s ease;
}

.welcome-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    color: white;
    font-size: var(--font-size-2xl);
    box-shadow: var(--shadow-lg);
}

.welcome-section h2 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    font-weight: 700;
}

.welcome-section p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.welcome-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition-normal);
}

.feature:hover {
    background: var(--bg-secondary);
    transform: translateY(-2px);
}

.feature i {
    color: var(--primary-color);
    font-size: var(--font-size-lg);
}

.welcome-suggestions p {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.suggestion-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.suggestion-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
    white-space: nowrap;
}

.suggestion-btn:hover {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Chat Messages */
.chat-messages {
    display: none;
    /* Hidden until first message */
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    min-height: 400px;
    max-height: 600px;
    overflow-y: auto;
}

.chat-messages.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.message {
    display: flex;
    margin-bottom: var(--spacing-lg);
    animation: messageSlide 0.4s ease;
}

.message.user {
    justify-content: flex-end;
}

.message-content {
    max-width: 80%;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    line-height: 1.6;
    position: relative;
}

.message.user .message-content {
    background: var(--primary-color);
    color: white;
    border-bottom-right-radius: var(--radius-sm);
}

.message.bot .message-content {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-bottom-left-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--spacing-sm);
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}

.message.bot .message-avatar {
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    color: white;
}

.message.user .message-avatar {
    background: var(--secondary-color);
    color: white;
    margin-left: var(--spacing-sm);
    margin-right: 0;
    order: 1;
}

/* Thinking indicator styles */
.thinking-indicator {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
}

.thinking-dots {
    display: flex;
    gap: 0.25rem;
}

.thinking-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary-color);
    animation: thinking-pulse 1.4s ease-in-out infinite both;
}

.thinking-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.thinking-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

.thinking-dots span:nth-child(3) {
    animation-delay: 0;
}

@keyframes thinking-pulse {

    0%,
    80%,
    100% {
        transform: scale(0.8);
        opacity: 0.5;
    }

    40% {
        transform: scale(1);
        opacity: 1;
    }
}

.thinking-text {
    color: var(--text-secondary);
    font-style: italic;
    font-size: 0.9rem;
}

.thinking-message {
    opacity: 0.8;
}

.message-timestamp {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
    text-align: right;
}

.message.bot .message-timestamp {
    text-align: left;
}

/* Preferences Panel */
.preferences-panel {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    display: none;
}

.preferences-panel.active {
    display: block;
    animation: slideUp 0.5s ease;
}

.preferences-panel h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.preferences-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.preference-item {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.preference-item i {
    color: var(--primary-color);
}

.no-preferences {
    color: var(--text-muted);
    font-style: italic;
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-lg);
}

/* Chat Input Area */
.chat-input-area {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-light);
    padding: var(--spacing-md) 0;
    z-index: 50;
}

.input-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.input-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-sm);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.input-wrapper:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

#message-input {
    flex: 1;
    border: none;
    outline: none;
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
    font-family: inherit;
    background: transparent;
    color: var(--text-primary);
}

#message-input::placeholder {
    color: var(--text-muted);
}

.send-button {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: none;
    background: var(--primary-color);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
    font-size: var(--font-size-base);
}

.send-button:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: scale(1.05);
}

.send-button:disabled {
    background: var(--secondary-color);
    cursor: not-allowed;
    transform: none;
}

.input-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.action-button {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    white-space: nowrap;
}

.action-button:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border-light);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    margin: 0 auto var(--spacing-md);
    animation: spin 1s linear infinite;
}

.loading-spinner p {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Toast Notifications */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transform: translateX(400px);
    transition: var(--transition-normal);
    z-index: 1001;
    max-width: 400px;
}

.toast.active {
    transform: translateX(0);
}

.toast.error-toast {
    border-left: 4px solid var(--error-color);
}

.toast.success-toast {
    border-left: 4px solid var(--success-color);
}

.toast i {
    font-size: var(--font-size-lg);
}

.error-toast i {
    color: var(--error-color);
}

.success-toast i {
    color: var(--success-color);
}

.toast-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    margin-left: auto;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.toast-close:hover {
    background: var(--bg-tertiary);
}

/* Animations */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

    100% {
        transform: rotate(360deg);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .header-content {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }

    .welcome-section {
        padding: var(--spacing-lg);
    }

    .welcome-features {
        grid-template-columns: 1fr;
    }

    .suggestion-buttons {
        grid-template-columns: 1fr;
    }

    .message-content {
        max-width: 90%;
    }

    .input-container {
        flex-direction: column;
        align-items: stretch;
    }

    .input-actions {
        justify-content: center;
    }

    .toast {
        right: 10px;
        left: 10px;
        max-width: none;
    }
}

@media (max-width: 480px) {
    .welcome-section h2 {
        font-size: var(--font-size-2xl);
    }

    .logo h1 {
        display: none;
    }

    .feature {
        flex-direction: column;
        text-align: center;
    }
}

/* Custom Scrollbar */
.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 10px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 10px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Focus styles for accessibility */
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {

    .header,
    .chat-input-area,
    .loading-overlay,
    .toast {
        display: none !important;
    }

    .chat-container {
        padding: 0;
    }

    .welcome-section,
    .chat-messages {
        box-shadow: none;
        border: 1px solid var(--border-color);
    }
}

/* University Cards Styling */
.university-card:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    padding: 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.card-title h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.2rem;
    font-weight: 600;
    line-height: 1.2;
}

.card-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.specialization-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    display: inline-block;
}

.alumni-badge {
    background: rgba(34, 197, 94, 0.2);
    color: rgba(255, 255, 255, 0.95);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.no-alumni-badge {
    background: rgba(239, 68, 68, 0.2);
    color: rgba(255, 255, 255, 0.95);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.card-fees {
    font-size: 1.1rem;
    font-weight: 600;
    text-align: right;
    opacity: 0.95;
}

.card-body {
    padding: 1.25rem;
}

.card-section {
    margin-bottom: 1rem;
}

.card-section:last-child {
    margin-bottom: 0;
}

.reviews-section {
    border: 1px solid rgba(255, 193, 7, 0.2);
    background: rgba(255, 193, 7, 0.05);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.star-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.star-rating i.fas.fa-star {
    color: #ffc107;
}

.star-rating i.fas.fa-star-half-alt {
    color: #ffc107;
}

.star-rating i.far.fa-star {
    color: #e0e0e0;
}

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

.no-reviews {
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.9rem;
}

.review-sentiments {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-bottom: 0.5rem;
}

.sentiment-badge {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: #059669;
    padding: 0.2rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

.review-source {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-style: italic;
}

.section-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.section-label i {
    color: var(--primary-color);
    width: 16px;
    text-align: center;
}

.section-content {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.pro-tag,
.con-tag,
.reason-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 16px;
    font-size: 0.8rem;
    font-weight: 500;
    background: var(--background-secondary);
    border: 1px solid var(--border-color);
}

.pro-tag {
    background: rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.2);
    color: var(--success-color);
}

.con-tag {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.2);
    color: var(--error-color);
}

.reason-tag {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.2);
    color: var(--primary-color);
}

.card-actions {
    padding: 1rem 1.25rem;
    background: var(--background-secondary);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 0.75rem;
    justify-content: center;
}

.card-button {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
    cursor: pointer;
    flex: 1;
    justify-content: center;
    max-width: 140px;
}

.card-button.primary {
    background: var(--primary-color);
    color: white;
}

.card-button.primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.card-button.secondary {
    background: var(--background-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.card-button.secondary:hover {
    background: var(--background-tertiary);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Responsive card design */
@media (max-width: 640px) {
    .university-card {
        margin: 0;
    }

    .card-header {
        padding: 1rem;
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .card-fees {
        text-align: left;
        font-size: 1rem;
    }

    .card-body {
        padding: 1rem;
    }

    .card-actions {
        padding: 0.75rem 1rem;
        flex-direction: column;
    }

    .card-button {
        max-width: none;
        width: 100%;
    }
}

/* Message content adjustments for cards */
/* Cards as separate message styling */
.message.cards-message {
    background: none;
    padding: 0;
    margin: 10px 0;
}

.message.cards-message .university-cards-container {
    margin-top: 0;
}

.message.bot .message-content {
    max-width: 100%;
    width: 100%;
}

.message.bot .university-cards-container {
    width: 100%;
    max-width: none;
}

.university-cards-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
    max-width: 100%;
    width: 100%;
}

.university-card {
    background: var(--background-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    max-width: 100%;
    width: 100%;
}

/* Animation for card appearance */
.university-card {
    animation: cardSlideIn 0.5s ease-out;
}

@keyframes cardSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}