/* Contact Form Tab - Styles */

/* ============================================
   Floating Contact Button (Bottom Left)
   ============================================ */

.contact-tab-button {
    position: fixed;
    left: 24px;
    bottom: 24px;
    z-index: 1000;
    
    /* Dimensions - Circular button */
    width: 64px;
    height: 64px;
    
    /* Visual styling with gradient */
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 50%;
    box-shadow: 
        0 10px 25px rgba(102, 126, 234, 0.4),
        0 6px 12px rgba(118, 75, 162, 0.3),
        0 0 0 0 rgba(102, 126, 234, 0.7);
    
    /* Typography */
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    font-size: 14px;
    font-weight: 600;
    
    /* Layout */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    
    /* Interaction */
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Pulse animation */
    animation: pulse-ring 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
    
    /* Accessibility */
    outline: none;
    
    /* Backdrop blur effect */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* Pulse ring animation */
@keyframes pulse-ring {
    0% {
        box-shadow: 
            0 10px 25px rgba(102, 126, 234, 0.4),
            0 6px 12px rgba(118, 75, 162, 0.3),
            0 0 0 0 rgba(102, 126, 234, 0.7);
    }
    50% {
        box-shadow: 
            0 10px 25px rgba(102, 126, 234, 0.4),
            0 6px 12px rgba(118, 75, 162, 0.3),
            0 0 0 8px rgba(102, 126, 234, 0);
    }
    100% {
        box-shadow: 
            0 10px 25px rgba(102, 126, 234, 0.4),
            0 6px 12px rgba(118, 75, 162, 0.3),
            0 0 0 0 rgba(102, 126, 234, 0);
    }
}

.contact-tab-button::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.contact-tab-button:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    transform: translateY(-6px) scale(1.08);
    box-shadow: 
        0 15px 35px rgba(102, 126, 234, 0.5),
        0 8px 16px rgba(118, 75, 162, 0.4),
        0 0 0 0 rgba(102, 126, 234, 0);
    animation: none;
}

.contact-tab-button:hover::before {
    opacity: 1;
}

.contact-tab-button:focus {
    outline: 3px solid rgba(102, 126, 234, 0.6);
    outline-offset: 3px;
}

.contact-tab-button:focus-visible {
    outline: 3px solid #667eea;
    outline-offset: 3px;
}

.contact-tab-button:active {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 
        0 8px 20px rgba(102, 126, 234, 0.4),
        0 4px 8px rgba(118, 75, 162, 0.3);
}

/* Tab button icon and text layout */
.contact-tab-button .contact-icon {
    display: block;
    width: 26px;
    height: 26px;
    margin: 0;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
    transition: transform 0.3s ease;
}

.contact-tab-button:hover .contact-icon {
    transform: scale(1.1) rotate(-5deg);
}

.contact-tab-button .contact-text {
    display: block;
    font-size: 9px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    opacity: 0.95;
}

/* Tab button state when form is open */
.contact-tab-button[aria-expanded="true"] {
    background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
    transform: scale(0.95);
    animation: none;
    box-shadow: 
        0 6px 15px rgba(102, 126, 234, 0.3),
        0 3px 6px rgba(118, 75, 162, 0.2);
}

.contact-tab-button[aria-expanded="true"] .contact-icon {
    transform: rotate(180deg);
}

/* ============================================
   Form Panel Container
   ============================================ */

.contact-form-panel {
    position: fixed;
    right: 0;
    top: 0;
    width: 420px;
    height: 100vh;
    z-index: 1001;
    
    /* Visual styling with gradient border */
    background: linear-gradient(to bottom, #ffffff 0%, #fafbfc 100%);
    box-shadow: 
        -8px 0 40px rgba(0, 0, 0, 0.12),
        -4px 0 20px rgba(0, 0, 0, 0.08),
        -2px 0 8px rgba(0, 0, 0, 0.04);
    
    /* Gradient border effect */
    border-left: 1px solid transparent;
    background-clip: padding-box;
    
    /* Animation */
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Layout */
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.contact-form-panel::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, #667eea 0%, #764ba2 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.contact-form-panel[aria-hidden="false"] {
    transform: translateX(0);
}

.contact-form-panel[aria-hidden="false"]::before {
    opacity: 1;
}

/* ============================================
   Form Header
   ============================================ */

.contact-form-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 1.75rem;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    border-bottom: 1px solid rgba(102, 126, 234, 0.1);
    flex-shrink: 0;
    position: relative;
}

.contact-form-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(102, 126, 234, 0.3) 50%, transparent 100%);
}

.contact-form-header h2 {
    margin: 0;
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.contact-form-close {
    width: 36px;
    height: 36px;
    padding: 0;
    border: none;
    background: rgba(102, 126, 234, 0.08);
    color: #667eea;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-form-close:hover {
    background: rgba(102, 126, 234, 0.15);
    color: #764ba2;
    transform: rotate(90deg);
}

.contact-form-close:focus {
    outline: 2px solid rgba(102, 126, 234, 0.5);
    outline-offset: 2px;
}

.contact-form-close:focus-visible {
    outline: 3px solid #667eea;
    outline-offset: 2px;
    background: rgba(102, 126, 234, 0.15);
}

.contact-form-close svg {
    width: 20px;
    height: 20px;
}

/* ============================================
   Form Content Area
   ============================================ */

.contact-form-content {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

/* Custom scrollbar for form content */
.contact-form-content::-webkit-scrollbar {
    width: 8px;
}

.contact-form-content::-webkit-scrollbar-track {
    background: var(--background-color, #F9FAFB);
}

.contact-form-content::-webkit-scrollbar-thumb {
    background: var(--border-color, #E5E7EB);
    border-radius: 4px;
}

.contact-form-content::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary, #6B7280);
}

/* ============================================
   Form Styling
   ============================================ */

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
}

/* Form Group */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Form Label */
.form-label {
    font-size: 0.875rem;
    font-weight: 700;
    color: #4a5568;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    font-size: 0.75rem;
}

.required-indicator {
    color: #f56565;
    font-weight: 700;
}

/* Form Input and Textarea */
.form-input,
.form-textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-family: inherit;
    font-size: 1rem;
    color: #2d3748;
    background: #ffffff;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.form-input:hover,
.form-textarea:hover {
    border-color: #cbd5e0;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 
        0 0 0 3px rgba(102, 126, 234, 0.1),
        0 4px 12px rgba(102, 126, 234, 0.15);
    transform: translateY(-1px);
}

.form-input:focus-visible,
.form-textarea:focus-visible {
    outline: none;
    border-color: #667eea;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: #a0aec0;
    font-weight: 400;
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
    line-height: 1.6;
}

/* Error State */
.form-input--error,
.form-textarea--error,
.form-input.error,
.form-textarea.error {
    border-color: var(--error-color, #EF4444);
    border-width: 2px;
}

.form-input--error:focus,
.form-textarea--error:focus,
.form-input.error:focus,
.form-textarea.error:focus {
    outline: 2px solid var(--error-color, #EF4444);
    outline-offset: 2px;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-input--error:focus-visible,
.form-textarea--error:focus-visible {
    outline: 3px solid var(--error-color, #EF4444);
    outline-offset: 2px;
}

/* Form Error Message */
.form-error {
    display: none;
    font-size: 0.875rem;
    color: var(--error-color, #EF4444);
    margin-top: 0.25rem;
}

.form-error.visible {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.form-error svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* ============================================
   Submit Button
   ============================================ */

.form-submit {
    width: 100%;
    height: 52px;
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 
        0 4px 12px rgba(102, 126, 234, 0.3),
        0 2px 6px rgba(118, 75, 162, 0.2);
    position: relative;
    overflow: hidden;
}

.form-submit::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.form-submit:hover:not(:disabled) {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    transform: translateY(-2px);
    box-shadow: 
        0 8px 20px rgba(102, 126, 234, 0.4),
        0 4px 12px rgba(118, 75, 162, 0.3);
}

.form-submit:hover:not(:disabled)::before {
    opacity: 1;
}

.form-submit:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 
        0 2px 8px rgba(102, 126, 234, 0.3),
        0 1px 4px rgba(118, 75, 162, 0.2);
}

.form-submit:focus {
    outline: 3px solid rgba(102, 126, 234, 0.5);
    outline-offset: 2px;
}

.form-submit:focus-visible {
    outline: 3px solid #667eea;
    outline-offset: 2px;
}

.form-submit:disabled {
    background: linear-gradient(135deg, #a0aec0 0%, #718096 100%);
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Loading State */
.form-submit.loading {
    position: relative;
    color: transparent;
}

.form-submit.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ============================================
   Status Messages
   ============================================ */

.contact-form-status {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius, 8px);
    display: none;
    align-items: flex-start;
    gap: 0.75rem;
    position: relative;
}

.contact-form-status--success {
    background: #DCFCE7;
    border: 1px solid #86EFAC;
    color: #166534;
}

.contact-form-status--error {
    background: #FEE2E2;
    border: 1px solid #FCA5A5;
    color: #991B1B;
}

.contact-form-status .status-icon {
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-form-status .status-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.contact-form-status .status-message {
    font-size: 0.875rem;
    line-height: 1.5;
}

.contact-form-status .status-link {
    color: inherit;
    text-decoration: underline;
    font-weight: 600;
}

.contact-form-status .status-link:hover {
    opacity: 0.8;
}

.contact-form-status.visible {
    display: block;
    animation: slideDown 0.3s ease-out;
}

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

/* Retry Button */
.status-retry-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 6px;
    color: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition, all 0.2s ease-in-out);
    font-family: inherit;
}

.status-retry-button:hover {
    background: rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
}

.status-retry-button:active {
    transform: translateY(0);
}

.status-retry-button:focus {
    outline: 2px solid currentColor;
    outline-offset: 2px;
}

.status-retry-button svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* Dismiss Button */
.status-dismiss {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: transparent;
    border: none;
    color: inherit;
    cursor: pointer;
    padding: 0.25rem;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: var(--transition, all 0.2s ease-in-out);
    opacity: 0.6;
}

.status-dismiss:hover {
    background: rgba(0, 0, 0, 0.1);
    opacity: 1;
}

.status-dismiss:focus {
    outline: 2px solid currentColor;
    outline-offset: 2px;
    opacity: 1;
}

.status-dismiss svg {
    width: 16px;
    height: 16px;
}



/* ============================================
   Overlay (for click-outside detection)
   ============================================ */

.contact-form-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease-in-out;
}

.contact-form-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

/* ============================================
   Responsive Styles
   ============================================ */

/* Mobile devices (0-767px) */
@media (max-width: 767px) {
    .contact-tab-button {
        width: 58px;
        height: 58px;
        left: 16px;
        bottom: 16px;
    }
    
    .contact-tab-button .contact-icon {
        width: 24px;
        height: 24px;
    }
    
    .contact-tab-button .contact-text {
        font-size: 8px;
    }
    
    .contact-form-panel {
        width: 100vw;
        max-width: 100vw;
    }
    
    .contact-form-header {
        padding: 1.5rem 1.25rem;
    }
    
    .contact-form-header h2 {
        font-size: 1.5rem;
    }
    
    .contact-form-close {
        width: 40px;
        height: 40px;
    }
    
    .contact-form-content {
        padding: 1rem;
    }
    
    .form-input,
    .form-textarea {
        font-size: 16px; /* Prevents zoom on iOS */
        min-height: 50px; /* Touch-friendly */
    }
    
    .form-textarea {
        min-height: 120px; /* Maintain textarea height */
    }
    
    .form-submit {
        min-height: 52px; /* Touch-friendly */
    }
}

/* Tablet devices (768px-1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    .contact-tab-button {
        width: 62px;
        height: 62px;
        left: 20px;
        bottom: 20px;
    }
    
    .contact-tab-button .contact-icon {
        width: 25px;
        height: 25px;
    }
    
    .contact-form-panel {
        width: 400px;
    }
    
    .contact-form-close {
        width: 38px;
        height: 38px;
    }
    
    .form-input,
    .form-textarea {
        min-height: 50px; /* Touch-friendly */
    }
    
    .form-textarea {
        min-height: 120px; /* Maintain textarea height */
    }
}

/* Desktop devices (1024px+) */
@media (min-width: 1024px) {
    .contact-tab-button {
        width: 64px;
        height: 64px;
        left: 24px;
        bottom: 24px;
    }
    
    .contact-tab-button .contact-icon {
        width: 26px;
        height: 26px;
    }
}

/* ============================================
   Touch Device Optimizations
   ============================================ */

@media (hover: none) and (pointer: coarse) {
    .contact-tab-button,
    .contact-form-close,
    .form-submit {
        min-height: 44px;
        min-width: 44px;
        touch-action: manipulation;
    }
    
    .contact-tab-button:active {
        transform: scale(0.92);
    }
    
    .form-submit:active:not(:disabled) {
        transform: scale(0.98);
    }
}

/* ============================================
   Accessibility Enhancements
   ============================================ */

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .contact-tab-button,
    .contact-form-panel,
    .contact-form-overlay,
    .form-input,
    .form-textarea,
    .form-submit,
    .contact-form-status {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .contact-tab-button {
        border: 2px solid white;
    }
    
    .form-input,
    .form-textarea {
        border-width: 2px;
    }
    
    .form-input:focus,
    .form-textarea:focus {
        border-width: 3px;
    }
}

/* Screen reader only content */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ============================================
   Focus Trap Styling
   ============================================ */

.contact-form-panel[aria-hidden="false"] .contact-form-close:focus,
.contact-form-panel[aria-hidden="false"] .form-input:focus,
.contact-form-panel[aria-hidden="false"] .form-textarea:focus,
.contact-form-panel[aria-hidden="false"] .form-submit:focus {
    outline: 3px solid var(--primary-color, #3B82F6);
    outline-offset: 2px;
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
    .contact-tab-button,
    .contact-form-panel,
    .contact-form-overlay {
        display: none !important;
    }
}