/* Form Styles for ISO 14046 Application - HydroBlue ISO Theme */

/* ===== CSS Variables - HydroBlue ISO Theme ===== */
:root {
    /* HydroBlue ISO Color Palette */
    --primary-blue: #0b61ff;
    --primary-blue-dark: #084fd8;
    --dark-navy: #072035;
    --dark-text: #07122a;
    --light-blue-bg: #f4f7fb;
    --light-blue-border: #e6eef9;
    --light-blue-subtle: #eef2ff;
    --white: #ffffff;
    --off-white: #fbfdff;
    --slate-gray: #475569;
    --light-gray: #64748b;
    --border-gray: #f1f5f9;
    --success-green: #065f46;
    --success-bg: #ecffef;
    --warning-orange: #f97316;
    --warning-bg: #fffbeb;
    --error-red: #ef4444;
    --error-bg: #fef2f2;
    
    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    --font-size-xs: 11px;
    --font-size-sm: 12px;
    --font-size-base: 13px;
    --font-size-md: 14px;
    --font-size-lg: 16px;
    --font-size-xl: 18px;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 20px;
    --spacing-2xl: 24px;
    
    /* Borders */
    --border-radius-sm: 6px;
    --border-radius-md: 8px;
    --border-radius-lg: 10px;
}

/* ===== Form Layout ===== */
.form-container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    font-family: var(--font-main);
}

.form-section {
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background: var(--white);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--light-blue-border);
    box-shadow: 0 4px 12px rgba(12, 22, 42, 0.04);
}

.form-section-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--light-blue-border);
}

.form-section-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--dark-navy);
    margin-bottom: var(--spacing-xs);
}

.form-section-description {
    color: var(--slate-gray);
    font-size: var(--font-size-base);
    line-height: 1.5;
}

/* ===== Form Groups ===== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

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

.form-group label.required::after {
    content: " *";
    color: var(--error-red);
}

.help-text {
    font-size: var(--font-size-xs);
    color: var(--light-gray);
    margin-top: var(--spacing-xs);
    line-height: 1.4;
}

.error-text {
    font-size: var(--font-size-xs);
    color: var(--error-red);
    margin-top: var(--spacing-xs);
    display: none;
}

.form-group.has-error .error-text {
    display: block;
}

.form-group.has-error input,
.form-group.has-error textarea,
.form-group.has-error select {
    border-color: var(--error-red);
    background: var(--error-bg);
}

/* ===== Input Styles ===== */
input[type="text"],
input[type="number"],
input[type="email"],
input[type="password"],
input[type="date"],
input[type="datetime-local"],
textarea,
select {
    width: 100%;
    padding: 10px 12px;
    background: var(--off-white);
    border: 1px solid var(--light-blue-border);
    border-radius: var(--border-radius-md);
    color: var(--dark-text);
    font-size: var(--font-size-base);
    font-family: var(--font-main);
    transition: all 0.2s ease;
    height: 40px;
}

input[type="text"]:focus,
input[type="number"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="date"]:focus,
input[type="datetime-local"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(11, 97, 255, 0.1);
    background: var(--white);
}

textarea {
    min-height: 100px;
    resize: vertical;
    line-height: 1.5;
    height: auto;
    padding: 12px;
}

select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23475569' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 14px;
    padding-right: 36px;
}

/* ===== Radio and Checkbox Styles ===== */
.radio-group,
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.radio-label,
.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-md);
    transition: background 0.2s ease;
}

.radio-label:hover,
.checkbox-label:hover {
    background: var(--light-blue-subtle);
}

.radio-label input[type="radio"],
.checkbox-label input[type="checkbox"] {
    margin-top: 2px;
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    accent-color: var(--primary-blue);
}

.radio-label-text,
.checkbox-label-text {
    flex: 1;
    color: var(--dark-text);
    font-size: var(--font-size-base);
    line-height: 1.5;
}

.radio-help,
.checkbox-help {
    font-size: var(--font-size-xs);
    color: var(--light-gray);
    margin-top: var(--spacing-xs);
    display: block;
}

/* Radio Cards */
.radio-card-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.radio-card {
    position: relative;
    cursor: pointer;
}

.radio-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.radio-card-content {
    padding: var(--spacing-lg);
    background: var(--off-white);
    border: 2px solid var(--light-blue-border);
    border-radius: var(--border-radius-md);
    transition: all 0.2s ease;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    height: 100%;
}

.radio-card:hover .radio-card-content {
    border-color: var(--primary-blue);
    background: var(--light-blue-subtle);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(12, 22, 42, 0.08);
}

.radio-card input[type="radio"]:checked + .radio-card-content {
    border-color: var(--primary-blue);
    background: var(--light-blue-subtle);
    box-shadow: 0 0 0 1px var(--primary-blue), 0 4px 12px rgba(12, 22, 42, 0.08);
}

.radio-card-icon {
    font-size: 18px;
    width: 36px;
    height: 36px;
    background: var(--light-blue-subtle);
    color: var(--primary-blue);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 1px solid var(--light-blue-border);
}

.radio-card-text h4 {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--dark-navy);
    margin-bottom: var(--spacing-xs);
}

.radio-card-text p {
    font-size: var(--font-size-sm);
    color: var(--slate-gray);
    line-height: 1.4;
}

/* ===== Input Groups ===== */
.input-group {
    margin-bottom: var(--spacing-md);
}

.input-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--slate-gray);
}

.input-group-row {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
}

.input-with-unit {
    display: flex;
    align-items: center;
    background: var(--off-white);
    border: 1px solid var(--light-blue-border);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    flex: 1;
}

.input-with-unit input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 10px 12px;
    height: 40px;
}

.input-unit {
    padding: 0 var(--spacing-md);
    background: var(--light-blue-subtle);
    color: var(--light-gray);
    font-size: var(--font-size-sm);
    height: 100%;
    display: flex;
    align-items: center;
    border-left: 1px solid var(--light-blue-border);
    font-weight: 500;
}

/* ===== Button Groups ===== */
.button-group {
    display: flex;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.button-group-center {
    justify-content: center;
}

.button-group-right {
    justify-content: flex-end;
}

.button-group-stacked {
    flex-direction: column;
    align-items: stretch;
}

/* Button Styles (matching HydroBlue ISO) */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    border: 1px solid var(--light-blue-border);
    border-radius: var(--border-radius-md);
    background: var(--white);
    color: var(--dark-navy);
    font-family: var(--font-main);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn:hover {
    background: var(--light-blue-subtle);
    border-color: var(--primary-blue);
    transform: translateY(-1px);
}

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

.btn-primary:hover {
    background: var(--primary-blue-dark);
    border-color: var(--primary-blue-dark);
    color: white;
}

.btn-secondary {
    background: var(--white);
    border-color: var(--light-blue-border);
    color: var(--dark-navy);
}

.btn-secondary:hover {
    background: var(--light-blue-subtle);
    border-color: var(--primary-blue);
}

/* ===== Table Forms ===== */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-lg) 0;
    background: var(--white);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    border: 1px solid var(--light-blue-border);
}

.data-table th {
    background: var(--off-white);
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--dark-navy);
    font-size: var(--font-size-sm);
    border-bottom: 1px solid var(--light-blue-border);
}

.data-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--light-blue-border);
    vertical-align: top;
    color: var(--dark-text);
    font-size: var(--font-size-base);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover {
    background: var(--light-blue-subtle);
}

.data-table input[type="text"],
.data-table input[type="number"],
.data-table select {
    width: 100%;
    padding: 8px 10px;
    background: var(--white);
    border: 1px solid var(--light-blue-border);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    height: 32px;
}

/* ===== Dynamic Form Elements ===== */
.dynamic-list {
    margin: var(--spacing-lg) 0;
}

.list-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--off-white);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--light-blue-border);
}

.list-item-content {
    flex: 1;
}

.list-item-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.btn-remove {
    background: var(--error-bg);
    border: 1px solid var(--error-red);
    color: var(--error-red);
    width: 32px;
    height: 32px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 14px;
}

.btn-remove:hover {
    background: var(--error-red);
    color: white;
}

.btn-add {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--light-blue-subtle);
    border: 1px solid var(--light-blue-border);
    color: var(--primary-blue);
    padding: 8px 12px;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.btn-add:hover {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: white;
}

/* ===== Validation Styles ===== */
.validation-summary {
    background: var(--error-bg);
    border: 1px solid var(--error-red);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.validation-summary h4 {
    color: var(--error-red);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-md);
    font-weight: 600;
}

.validation-errors {
    list-style: none;
    padding: 0;
    margin: 0;
}

.validation-errors li {
    padding: var(--spacing-xs) 0;
    color: var(--dark-text);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.validation-errors li::before {
    content: "⚠";
    color: var(--error-red);
    font-size: 14px;
    line-height: 1;
    margin-top: 1px;
}

.validation-success {
    background: var(--success-bg);
    border: 1px solid var(--success-green);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    display: none;
}

.validation-success.show {
    display: block;
}

.validation-success h4 {
    color: var(--success-green);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-md);
    font-weight: 600;
}

/* ===== File Upload ===== */
.file-upload-area {
    border: 2px dashed var(--light-blue-border);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-2xl);
    text-align: center;
    transition: all 0.2s ease;
    cursor: pointer;
    background: var(--off-white);
}

.file-upload-area:hover {
    border-color: var(--primary-blue);
    background: var(--light-blue-subtle);
}

.file-upload-area.dragover {
    border-color: var(--primary-blue);
    background: var(--light-blue-subtle);
    border-style: solid;
}

.file-upload-icon {
    font-size: 32px;
    margin-bottom: var(--spacing-md);
    color: var(--light-gray);
}

.file-upload-text h4 {
    color: var(--dark-navy);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-md);
    font-weight: 600;
}

.file-upload-text p {
    color: var(--slate-gray);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
}

.file-input {
    display: none;
}

.uploaded-files {
    margin-top: var(--spacing-lg);
}

.uploaded-file {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--off-white);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-sm);
    border: 1px solid var(--light-blue-border);
}

.file-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.file-icon {
    font-size: 16px;
    color: var(--primary-blue);
}

.file-name {
    font-weight: 600;
    color: var(--dark-text);
    font-size: var(--font-size-sm);
}

.file-size {
    font-size: var(--font-size-xs);
    color: var(--light-gray);
    margin-left: var(--spacing-sm);
}

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

/* ===== Range Slider ===== */
.range-slider {
    width: 100%;
    margin: var(--spacing-lg) 0;
}

.range-slider label {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--dark-navy);
}

.range-value {
    font-weight: 600;
    color: var(--primary-blue);
}

.range-track {
    height: 6px;
    background: var(--light-blue-border);
    border-radius: var(--border-radius-full);
    position: relative;
    margin: var(--spacing-md) 0;
}

.range-fill {
    position: absolute;
    height: 100%;
    background: linear-gradient(90deg, var(--primary-blue), #3b82f6);
    border-radius: var(--border-radius-full);
}

input[type="range"] {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    background: transparent;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    margin: 0;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary-blue);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid white;
    box-shadow: 0 2px 6px rgba(12, 22, 42, 0.15);
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--primary-blue);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid white;
    box-shadow: 0 2px 6px rgba(12, 22, 42, 0.15);
}

/* ===== Toggle Switch ===== */
.toggle-switch {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-md);
    cursor: pointer;
}

.toggle-track {
    width: 44px;
    height: 24px;
    background: var(--light-blue-border);
    border-radius: var(--border-radius-full);
    position: relative;
    transition: background 0.2s ease;
}

.toggle-thumb {
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    position: absolute;
    top: 2px;
    left: 2px;
    transition: transform 0.2s ease;
    box-shadow: 0 2px 4px rgba(12, 22, 42, 0.1);
}

.toggle-switch input[type="checkbox"] {
    display: none;
}

.toggle-switch input[type="checkbox"]:checked + .toggle-track {
    background: var(--primary-blue);
}

.toggle-switch input[type="checkbox"]:checked + .toggle-track .toggle-thumb {
    transform: translateX(20px);
}

.toggle-label {
    color: var(--dark-text);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

/* ===== Responsive Forms ===== */
@media (max-width: 768px) {
    .form-container {
        padding: var(--spacing-md);
    }
    
    .form-section {
        padding: var(--spacing-lg);
    }
    
    .radio-card-group {
        grid-template-columns: 1fr;
    }
    
    .input-group-row {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
    }
    
    .data-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .data-table th,
    .data-table td {
        padding: var(--spacing-sm);
        font-size: var(--font-size-sm);
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .button-group .btn {
        width: 100%;
        justify-content: center;
    }
    
    .list-item {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
    }
    
    .list-item-actions {
        align-self: flex-end;
    }
}