/* Registration Form V2 - Mobile-First Responsive Styles */

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --border-radius: 8px;
    --box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    --transition: all 0.3s ease-in-out;
    --touch-target-size: 44px; /* Minimum touch target for mobile */
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #f5f6f8;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Registration Container */
.registration-container {
    max-width: 960px;
    margin: 0 auto;
    background: white;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.registration-header {
    background: var(--primary-color);
    color: white;
    padding: 24px 20px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.registration-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0 0 8px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.registration-header .subtitle {
    font-size: 1rem;
    opacity: 0.9;
    margin: 0 0 4px 0;
}

.registration-header .version-text {
    font-size: 0.85rem;
    opacity: 0.8;
    margin: 0;
}

/* Progress Container */
.progress-container {
    padding: 20px;
    background: white;
    border-bottom: 1px solid #e9ecef;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.progress {
    height: 8px;
    background-color: #e9ecef;
    border-radius: 4px;
    margin-bottom: 16px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--primary-color);
    transition: width 0.3s ease;
    border-radius: 4px;
}

.step-indicators {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.step-indicator {
    flex: 1;
    min-width: 60px;
    text-align: center;
    position: relative;
    opacity: 0.5;
    transition: var(--transition);
}

.step-indicator.active {
    opacity: 1;
}

.step-indicator.completed .step-number {
    background: var(--success-color);
    color: white;
}

.step-indicator.active .step-number {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.step-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #e9ecef;
    color: #6c757d;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 4px;
    transition: var(--transition);
}

.step-label {
    font-size: 0.75rem;
    color: #6c757d;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Language Selector */
.language-selector {
    padding: 12px 20px;
    text-align: right;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

/* Form Steps */
.form-step {
    padding: 24px 20px;
    animation: fadeIn 0.3s ease-in;
}

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

.step-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    padding-bottom: 12px;
    border-bottom: 2px solid #e9ecef;
}

/* Form Controls */
.form-label {
    font-weight: 500;
    color: var(--dark-color);
    margin-bottom: 8px;
    display: block;
    font-size: 0.9375rem;
}

.form-control,
.form-select {
    border-radius: var(--border-radius);
    border: 1px solid #ced4da;
    padding: 12px 16px;
    font-size: 1rem;
    transition: var(--transition);
    min-height: var(--touch-target-size); /* Ensure touch-friendly size */
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.form-control.is-invalid,
.form-select.is-invalid {
    border-color: var(--danger-color);
}

.form-control.is-valid,
.form-select.is-valid {
    border-color: var(--success-color);
}

.invalid-feedback {
    display: none;
    width: 100%;
    margin-top: 4px;
    font-size: 0.875rem;
    color: var(--danger-color);
}

.form-control.is-invalid ~ .invalid-feedback,
.form-select.is-invalid ~ .invalid-feedback {
    display: block;
}

.form-text {
    font-size: 0.875rem;
    color: #6c757d;
    margin-top: 4px;
}

/* Checkboxes and Switches */
.form-check {
    margin-bottom: 16px;
    min-height: var(--touch-target-size);
    display: flex;
    align-items: center;
}

.form-check-input {
    width: 20px;
    height: 20px;
    margin-top: 0;
    margin-right: 8px;
    cursor: pointer;
    flex-shrink: 0;
}

.form-check-label {
    cursor: pointer;
    user-select: none;
    line-height: 1.5;
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Form Navigation */
.form-navigation {
    padding: 20px;
    background: #f8f9fa;
    border-top: 1px solid #e9ecef;
    display: flex;
    justify-content: space-between;
    gap: 12px;
    position: sticky;
    bottom: 0;
    z-index: 100;
    box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.05);
}

.btn {
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    min-height: var(--touch-target-size);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
}

.btn:active {
    transform: scale(0.98);
}

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

.btn-primary:hover {
    background: #0b5ed7;
    color: white;
}

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

.btn-secondary:hover {
    background: #5c636a;
    color: white;
}

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

.btn-success:hover {
    background: #157347;
    color: white;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Alerts */
.alert {
    margin: 16px 20px;
    padding: 12px 16px;
    border-radius: var(--border-radius);
    border: 1px solid transparent;
    display: flex;
    align-items: center;
}

.alert-danger {
    background-color: #f8d7da;
    border-color: #f5c2c7;
    color: #842029;
}

.alert-success {
    background-color: #d1e7dd;
    border-color: #badbcc;
    color: #0f5132;
}

.alert-info {
    background-color: #cff4fc;
    border-color: #b6effb;
    color: #055160;
}

.alert-warning {
    background-color: #fff3cd;
    border-color: #ffecb5;
    color: #664d03;
}

/* Footer */
.registration-footer {
    padding: 16px 20px;
    background: #f8f9fa;
    border-top: 1px solid #e9ecef;
    margin-top: auto;
}

/* Mobile Optimizations */
@media (max-width: 768px) {
    .registration-container {
        margin: 0;
    }
    
    .registration-header {
        padding: 20px 16px;
    }
    
    .registration-header h1 {
        font-size: 1.25rem;
    }
    
    .progress-container {
        padding: 16px;
    }
    
    .step-indicators {
        gap: 4px;
    }
    
    .step-indicator {
        min-width: 50px;
    }
    
    .step-number {
        width: 28px;
        height: 28px;
        font-size: 0.75rem;
    }
    
    .step-label {
        font-size: 0.7rem;
    }
    
    .form-step {
        padding: 20px 16px;
    }
    
    .step-title {
        font-size: 1.125rem;
        margin-bottom: 20px;
    }
    
    .form-control,
    .form-select {
        padding: 14px 16px; /* Larger padding for mobile */
        font-size: 16px; /* Prevent zoom on iOS */
    }
    
    .form-navigation {
        padding: 16px;
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        padding: 14px 24px;
    }
    
    .row {
        margin-left: -8px;
        margin-right: -8px;
    }
    
    .row > [class*="col-"] {
        padding-left: 8px;
        padding-right: 8px;
    }
}

/* iPhone Specific Fixes */
@supports (-webkit-touch-callout: none) {
    .form-control,
    .form-select {
        font-size: 16px; /* Prevent zoom on focus */
    }
    
    input[type="date"],
    input[type="time"],
    input[type="datetime-local"] {
        font-size: 16px;
    }
}

/* Samsung/Android Specific Fixes */
@media screen and (-webkit-min-device-pixel-ratio: 0) {
    .form-control:focus,
    .form-select:focus {
        -webkit-appearance: none;
    }
}

/* Tablet Styles */
@media (min-width: 769px) and (max-width: 1024px) {
    .registration-container {
        max-width: 100%;
        margin: 0;
    }
    
    .form-step {
        padding: 24px 32px;
    }
}

/* Desktop Styles */
@media (min-width: 1025px) {
    .registration-container {
        box-shadow: var(--box-shadow);
        margin: 24px auto;
        border-radius: var(--border-radius);
        overflow: hidden;
    }
    
    .form-step {
        padding: 32px 40px;
    }
    
    .form-navigation {
        padding: 24px 40px;
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .step-number {
        border: 1px solid rgba(0, 0, 0, 0.1);
    }
}

/* Print Styles */
@media print {
    .registration-header,
    .progress-container,
    .form-navigation,
    .language-selector {
        display: none;
    }
    
    .form-step {
        display: block !important;
        page-break-inside: avoid;
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Visible for Keyboard Navigation */
.btn:focus-visible,
.form-control:focus-visible,
.form-select:focus-visible,
.form-check-input:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Loading State */
.btn.loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn.loading::after {
    content: "";
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin-left: -10px;
    margin-top: -10px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spinner 0.6s linear infinite;
}

@keyframes spinner {
    to {
        transform: rotate(360deg);
    }
}

/* Email Check Result */
#email-check-result {
    font-size: 0.875rem;
    margin-top: 4px;
}

#email-check-result .text-success {
    color: var(--success-color);
}

#email-check-result .text-danger {
    color: var(--danger-color);
}

/* Parent Info Section */
#parent-info-section {
    margin-top: 16px;
}

#adult-info-message {
    margin-top: 16px;
}

/* Character Counter */
.char-counter {
    font-size: 0.75rem;
    color: #6c757d;
    text-align: right;
    margin-top: 4px;
}

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

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

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Hide number input spinners on Chrome, Safari, Edge, Opera */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* Hide number input spinners on Firefox */
input[type="number"] {
    -moz-appearance: textfield;
}

/* Select styling for better mobile experience */
select.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px 12px;
    padding-right: 40px;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

/* Textarea resize handle */
textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

/* Ensure proper spacing for form groups */
.mb-3 {
    margin-bottom: 1rem !important;
}

/* Row spacing */
.row {
    margin-left: -12px;
    margin-right: -12px;
}

.row > [class*="col-"] {
    padding-left: 12px;
    padding-right: 12px;
}