/**
 * Main Stylesheet - Flat Design (No Shadows)
 * Dr. Mohsen Danesh Dental Booking Chatbot
 * Version: 1.0.0
 */

/* Custom Font */
@font-face {
    font-family: 'MainFont';
    src: url('../../fonts/main.woff2') format('woff2'),
         url('../../fonts/main.woff') format('woff'),
         url('../../fonts/main.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

/* CSS Variables */
:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #16a34a;
    --success-hover: #15803d;
    --danger-color: #dc2626;
    --danger-hover: #b91c1c;
    --warning-color: #d97706;
    --warning-hover: #b45309;
    --background-color: #f8fafc;
    --white: #ffffff;
    --text-dark: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;
    --input-border: #d1d5db;
    --input-focus: #2563eb;
    
    /* Font settings */
    --font-family: 'MainFont', 'Tahoma', Arial, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Border radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.2s ease;
    --transition-slow: 0.3s ease;
}

/* Reset and base styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Remove all shadows globally */
*,
*::before,
*::after {
    box-shadow: none !important;
    text-shadow: none !important;
}

html {
    font-size: var(--font-size-base);
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--background-color);
    direction: rtl;
    text-align: right;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family);
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

h1 { font-size: var(--font-size-2xl); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-lg); }
h4 { font-size: var(--font-size-base); }
h5 { font-size: var(--font-size-sm); }
h6 { font-size: var(--font-size-sm); }

p {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

/* Button styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    min-height: 44px;
    min-width: 44px;
    position: relative;
    outline: none;
    user-select: none;
    white-space: nowrap;
}

.btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Button variants */
.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--secondary-color);
    border-color: var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background-color: #f1f5f9;
    border-color: var(--border-hover);
    color: var(--text-dark);
}

.btn-success {
    background-color: var(--success-color);
    color: var(--white);
    border-color: var(--success-color);
}

.btn-success:hover:not(:disabled) {
    background-color: var(--success-hover);
    border-color: var(--success-hover);
}

.btn-danger {
    background-color: var(--danger-color);
    color: var(--white);
    border-color: var(--danger-color);
}

.btn-danger:hover:not(:disabled) {
    background-color: var(--danger-hover);
    border-color: var(--danger-hover);
}

.btn-warning {
    background-color: var(--warning-color);
    color: var(--white);
    border-color: var(--warning-color);
}

.btn-warning:hover:not(:disabled) {
    background-color: var(--warning-hover);
    border-color: var(--warning-hover);
}

/* Button sizes */
.btn-sm {
    padding: 8px 16px;
    font-size: var(--font-size-sm);
    min-height: 36px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: var(--font-size-lg);
    min-height: 52px;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.btn-icon {
    padding: 12px;
    min-width: 44px;
}

/* Input and form styles */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
    font-size: var(--font-size-base);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--input-border);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    background-color: var(--white);
    color: var(--text-dark);
    transition: border-color var(--transition-normal);
    outline: none;
    min-height: 44px;
}

.form-input:focus {
    border-color: var(--input-focus);
}

.form-input:disabled {
    background-color: #f9fafb;
    opacity: 0.7;
    cursor: not-allowed;
}

.form-input.error {
    border-color: var(--danger-color);
}

.form-input.success {
    border-color: var(--success-color);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236B7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
    background-position: left 12px center;
    background-repeat: no-repeat;
    background-size: 16px;
    padding-left: 40px;
}

.form-error {
    color: var(--danger-color);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
    display: block;
}

.form-help {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
    display: block;
}

/* Card styles */
.card {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.card-header {
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: 0;
    color: var(--text-dark);
}

.card-body {
    padding: 0;
}

.card-footer {
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

/* Alert styles */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-base);
}

.alert-success {
    background-color: #f0fdf4;
    border-color: #bbf7d0;
    color: #166534;
}

.alert-danger {
    background-color: #fef2f2;
    border-color: #fecaca;
    color: #991b1b;
}

.alert-warning {
    background-color: #fffbeb;
    border-color: #fed7aa;
    color: #92400e;
}

.alert-info {
    background-color: #eff6ff;
    border-color: #bfdbfe;
    color: #1e40af;
}

/* Badge styles */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 8px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

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

.badge-success {
    background-color: var(--success-color);
    color: var(--white);
}

.badge-danger {
    background-color: var(--danger-color);
    color: var(--white);
}

.badge-warning {
    background-color: var(--warning-color);
    color: var(--white);
}

.badge-secondary {
    background-color: var(--secondary-color);
    color: var(--white);
}

/* Loading and spinner */
.loading-spinner {
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    animation: spin 1s linear infinite;
    margin: var(--spacing-lg) auto;
}

.loading-spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

.loading-spinner-lg {
    width: 48px;
    height: 48px;
    border-width: 6px;
}

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

/* Chat styles */
.chat-container {
    padding: var(--spacing-md);
    max-height: calc(100vh - 200px);
    overflow-y: auto;
    scroll-behavior: smooth;
}

.chat-message {
    margin-bottom: var(--spacing-md);
    animation: slideInUp var(--transition-slow) ease-out;
}

.chat-message-bot {
    display: flex;
    justify-content: flex-start;
}

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

.chat-bubble {
    max-width: 80%;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    line-height: 1.5;
    word-wrap: break-word;
}

.chat-bubble-bot {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    color: var(--text-dark);
}

.chat-bubble-user {
    background-color: var(--primary-color);
    color: var(--white);
}

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

/* Calendar styles */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
    background-color: var(--border-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.calendar-day {
    background-color: var(--white);
    padding: var(--spacing-md);
    min-height: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color var(--transition-normal);
    text-align: center;
}

.calendar-day:hover {
    background-color: #f8fafc;
}

.calendar-day.selected {
    background-color: var(--primary-color);
    color: var(--white);
}

.calendar-day.disabled {
    background-color: #f9fafb;
    color: var(--text-muted);
    cursor: not-allowed;
}

.calendar-day.today {
    border: 2px solid var(--primary-color);
}

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

.calendar-month-year {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-dark);
}

/* Time slots */
.time-slots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.time-slot {
    padding: var(--spacing-md);
    background-color: var(--white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-weight: 600;
}

.time-slot:hover {
    border-color: var(--primary-color);
    background-color: #eff6ff;
}

.time-slot.selected {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white);
}

.time-slot.disabled {
    background-color: #f9fafb;
    color: var(--text-muted);
    cursor: not-allowed;
    border-color: #e5e7eb;
}

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

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

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

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

/* Utility classes */
.hidden { display: none !important; }
.visible { display: block !important; }
.text-center { text-align: center !important; }
.text-right { text-align: right !important; }
.text-left { text-align: left !important; }
.text-primary { color: var(--primary-color) !important; }
.text-success { color: var(--success-color) !important; }
.text-danger { color: var(--danger-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-white { color: var(--white) !important; }

.bg-primary { background-color: var(--primary-color) !important; }
.bg-success { background-color: var(--success-color) !important; }
.bg-danger { background-color: var(--danger-color) !important; }
.bg-warning { background-color: var(--warning-color) !important; }
.bg-white { background-color: var(--white) !important; }

.border { border: 1px solid var(--border-color) !important; }
.border-0 { border: none !important; }
.border-primary { border-color: var(--primary-color) !important; }
.border-success { border-color: var(--success-color) !important; }
.border-danger { border-color: var(--danger-color) !important; }

.rounded { border-radius: var(--radius-md) !important; }
.rounded-sm { border-radius: var(--radius-sm) !important; }
.rounded-lg { border-radius: var(--radius-lg) !important; }
.rounded-full { border-radius: 50% !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: var(--spacing-xs) !important; }
.p-2 { padding: var(--spacing-sm) !important; }
.p-3 { padding: var(--spacing-md) !important; }
.p-4 { padding: var(--spacing-lg) !important; }
.p-5 { padding: var(--spacing-xl) !important; }

.m-0 { margin: 0 !important; }
.m-1 { margin: var(--spacing-xs) !important; }
.m-2 { margin: var(--spacing-sm) !important; }
.m-3 { margin: var(--spacing-md) !important; }
.m-4 { margin: var(--spacing-lg) !important; }
.m-5 { margin: var(--spacing-xl) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--spacing-xs) !important; }
.mb-2 { margin-bottom: var(--spacing-sm) !important; }
.mb-3 { margin-bottom: var(--spacing-md) !important; }
.mb-4 { margin-bottom: var(--spacing-lg) !important; }
.mb-5 { margin-bottom: var(--spacing-xl) !important; }

.font-bold { font-weight: 700 !important; }
.font-medium { font-weight: 600 !important; }
.font-normal { font-weight: 400 !important; }

.text-xs { font-size: 12px !important; }
.text-sm { font-size: var(--font-size-sm) !important; }
.text-base { font-size: var(--font-size-base) !important; }
.text-lg { font-size: var(--font-size-lg) !important; }
.text-xl { font-size: var(--font-size-xl) !important; }
.text-2xl { font-size: var(--font-size-2xl) !important; }

/* Responsive utilities */
@media (max-width: 640px) {
    .btn {
        padding: 14px 20px;
        font-size: var(--font-size-base);
    }
    
    .btn-sm {
        padding: 10px 16px;
        font-size: var(--font-size-sm);
    }
    
    .form-input {
        padding: 14px 16px;
        font-size: var(--font-size-base);
    }
    
    .card {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }
    
    .chat-bubble {
        max-width: 90%;
    }
    
    .time-slots-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    }
    
    .calendar-day {
        min-height: 50px;
        padding: var(--spacing-sm);
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --text-muted: #000000;
    }
    
    .btn {
        border-width: 3px;
    }
    
    .form-input {
        border-width: 3px;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print styles */
@media print {
    .action-buttons,
    .btn,
    .loading-spinner {
        display: none !important;
    }
    
    .chat-container {
        max-height: none !important;
        overflow: visible !important;
    }
    
    .card {
        border: 1px solid #000 !important;
        page-break-inside: avoid;
    }
}