/**
 * HeuriSight Form System
 * Based on: mockups/apple-redesign/03-assessment-flow.html
 * 
 * Usage:
 *   <label class="hs-label">Label</label>
 *   <input type="text" class="hs-input">
 *   <select class="hs-select">...</select>
 *   <textarea class="hs-textarea">...</textarea>
 */

/* =============================================================================
   LABELS
   ============================================================================= */

.hs-label {
    display: block;
    font-size: var(--text-sm, 13px);
    font-weight: 500;
    color: var(--text-primary, #1D1D1F);
    margin-bottom: var(--space-2, 8px);
}

.hs-label--required::after {
    content: ' *';
    color: var(--destructive, #FF3B30);
}

/* =============================================================================
   TEXT INPUT
   ============================================================================= */

.hs-input {
    display: block;
    width: 100%;
    padding: var(--space-3, 12px) var(--space-4, 16px);
    font-family: var(--font-sans, -apple-system, BlinkMacSystemFont, sans-serif);
    font-size: var(--text-base, 15px);
    line-height: 1.4;
    color: var(--text-primary, #1D1D1F);
    background: var(--bg-primary, #FFFFFF);
    border: 1px solid var(--border-default, rgba(0, 0, 0, 0.1));
    border-radius: var(--radius-md, 12px);
    transition: all var(--duration-fast, 150ms) var(--ease-default);
    -webkit-appearance: none;
    appearance: none;
}

.hs-input::placeholder {
    color: var(--text-tertiary, #86868B);
}

.hs-input:hover {
    border-color: var(--gray-400, #86868B);
}

.hs-input:focus {
    outline: none;
    border-color: var(--accent, #0071E3);
    box-shadow: 0 0 0 3px var(--accent-subtle, rgba(0, 113, 227, 0.08));
}

.hs-input:disabled {
    background: var(--bg-secondary, #F5F5F7);
    color: var(--text-tertiary, #86868B);
    cursor: not-allowed;
}

/* Input states */
.hs-input--error {
    border-color: var(--destructive, #FF3B30);
}

.hs-input--error:focus {
    box-shadow: 0 0 0 3px var(--destructive-subtle, rgba(255, 59, 48, 0.12));
}

.hs-input--success {
    border-color: var(--success, #34C759);
}

/* Input sizes */
.hs-input--sm {
    padding: var(--space-2, 8px) var(--space-3, 12px);
    font-size: var(--text-sm, 13px);
    border-radius: var(--radius-sm, 8px);
}

.hs-input--lg {
    padding: var(--space-4, 16px) var(--space-5, 20px);
    font-size: var(--text-lg, 17px);
}

/* =============================================================================
   TEXTAREA
   ============================================================================= */

.hs-textarea {
    display: block;
    width: 100%;
    min-height: 120px;
    padding: var(--space-3, 12px) var(--space-4, 16px);
    font-family: var(--font-sans, -apple-system, BlinkMacSystemFont, sans-serif);
    font-size: var(--text-base, 15px);
    line-height: 1.5;
    color: var(--text-primary, #1D1D1F);
    background: var(--bg-primary, #FFFFFF);
    border: 1px solid var(--border-default, rgba(0, 0, 0, 0.1));
    border-radius: var(--radius-md, 12px);
    resize: vertical;
    transition: all var(--duration-fast, 150ms) var(--ease-default);
}

.hs-textarea::placeholder {
    color: var(--text-tertiary, #86868B);
}

.hs-textarea:hover {
    border-color: var(--gray-400, #86868B);
}

.hs-textarea:focus {
    outline: none;
    border-color: var(--accent, #0071E3);
    box-shadow: 0 0 0 3px var(--accent-subtle, rgba(0, 113, 227, 0.08));
}

.hs-textarea:disabled {
    background: var(--bg-secondary, #F5F5F7);
    color: var(--text-tertiary, #86868B);
    cursor: not-allowed;
}

/* =============================================================================
   SELECT
   ============================================================================= */

.hs-select {
    display: block;
    width: 100%;
    padding: var(--space-3, 12px) var(--space-10, 40px) var(--space-3, 12px) var(--space-4, 16px);
    font-family: var(--font-sans, -apple-system, BlinkMacSystemFont, sans-serif);
    font-size: var(--text-base, 15px);
    line-height: 1.4;
    color: var(--text-primary, #1D1D1F);
    background: var(--bg-primary, #FFFFFF);
    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='%2386868B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    border: 1px solid var(--border-default, rgba(0, 0, 0, 0.1));
    border-radius: var(--radius-md, 12px);
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    transition: all var(--duration-fast, 150ms) var(--ease-default);
}

.hs-select:hover {
    border-color: var(--gray-400, #86868B);
}

.hs-select:focus {
    outline: none;
    border-color: var(--accent, #0071E3);
    box-shadow: 0 0 0 3px var(--accent-subtle, rgba(0, 113, 227, 0.08));
}

.hs-select:disabled {
    background-color: var(--bg-secondary, #F5F5F7);
    color: var(--text-tertiary, #86868B);
    cursor: not-allowed;
}

/* Select sizes */
.hs-select--sm {
    padding: var(--space-2, 8px) var(--space-8, 32px) var(--space-2, 8px) var(--space-3, 12px);
    font-size: var(--text-sm, 13px);
    border-radius: var(--radius-sm, 8px);
}

/* =============================================================================
   CHECKBOX & RADIO
   ============================================================================= */

.hs-checkbox,
.hs-radio {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2, 8px);
    cursor: pointer;
    font-size: var(--text-sm, 13px);
}

.hs-checkbox input,
.hs-radio input {
    width: 18px;
    height: 18px;
    margin: 0;
    accent-color: var(--accent, #0071E3);
    cursor: pointer;
}

.hs-checkbox--disabled,
.hs-radio--disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* =============================================================================
   FORM GROUP
   ============================================================================= */

.hs-form-group {
    margin-bottom: var(--space-5, 20px);
}

.hs-form-group:last-child {
    margin-bottom: 0;
}

.hs-form-hint {
    font-size: var(--text-xs, 11px);
    color: var(--text-tertiary, #86868B);
    margin-top: var(--space-1, 4px);
}

.hs-form-error {
    font-size: var(--text-xs, 11px);
    color: var(--destructive, #FF3B30);
    margin-top: var(--space-1, 4px);
}

/* =============================================================================
   SEARCH INPUT
   ============================================================================= */

.hs-search {
    position: relative;
}

.hs-search__input {
    width: 100%;
    padding-left: var(--space-10, 40px);
}

.hs-search__icon {
    position: absolute;
    left: var(--space-3, 12px);
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--text-tertiary, #86868B);
    pointer-events: none;
}

/* =============================================================================
   FORM ROW (inline fields)
   ============================================================================= */

.hs-form-row {
    display: flex;
    gap: var(--space-4, 16px);
}

.hs-form-row > .hs-form-group {
    flex: 1;
    min-width: 0;
}

@media (max-width: 767px) {
    .hs-form-row {
        flex-direction: column;
    }
}

/* =============================================================================
   LEGACY FORM CONTROL MAPPINGS
   ============================================================================= */

.form-control {
    display: block;
    width: 100%;
    padding: var(--space-3, 12px) var(--space-4, 16px);
    font-family: var(--font-sans, -apple-system, BlinkMacSystemFont, sans-serif);
    font-size: var(--text-base, 15px);
    line-height: 1.4;
    color: var(--text-primary, #1D1D1F);
    background: var(--bg-primary, #FFFFFF);
    border: 1px solid var(--border-default, rgba(0, 0, 0, 0.1));
    border-radius: var(--radius-md, 12px);
    transition: all var(--duration-fast, 150ms) var(--ease-default);
    -webkit-appearance: none;
    appearance: none;
}

.form-control::placeholder {
    color: var(--text-tertiary, #86868B);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent, #0071E3);
    box-shadow: 0 0 0 3px var(--accent-subtle, rgba(0, 113, 227, 0.08));
}

.form-control--select {
    padding: var(--space-3, 12px) var(--space-10, 40px) var(--space-3, 12px) var(--space-4, 16px);
    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='%2386868B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
}

.form-control--textarea {
    min-height: 80px;
    resize: vertical;
}

/* Compact textarea for dense layouts */
.form-control--textarea.form-control--compact {
    min-height: 48px;
    padding: var(--space-2, 8px) var(--space-3, 12px);
    line-height: 1.4;
}

.form-control--small {
    padding: var(--space-2, 8px) var(--space-3, 12px);
    font-size: var(--text-sm, 13px);
    border-radius: var(--radius-sm, 8px);
}

/* =============================================================================
   DARK THEME
   ============================================================================= */

[data-theme="dark"] .hs-input,
[data-theme="dark"] .hs-textarea,
[data-theme="dark"] .hs-select,
[data-theme="dark"] .form-control {
    background-color: var(--bg-secondary, #2C2C2E);
    border-color: var(--border-default, rgba(255, 255, 255, 0.12));
    color: var(--text-primary, #FFFFFF);
}

[data-theme="dark"] .hs-input::placeholder,
[data-theme="dark"] .hs-textarea::placeholder,
[data-theme="dark"] .form-control::placeholder {
    color: var(--text-tertiary, #6E6E73);
}

[data-theme="dark"] .hs-input:disabled,
[data-theme="dark"] .hs-textarea:disabled,
[data-theme="dark"] .hs-select:disabled,
[data-theme="dark"] .form-control:disabled {
    background: var(--bg-tertiary, #3A3A3C);
}

[data-theme="dark"] .hs-select,
[data-theme="dark"] .form-control--select {
    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='%236E6E73' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px 16px;
}

/* =============================================================================
   FORM LAYOUT UTILITIES (Modal Forms)
   ============================================================================= */

.form-label {
    display: block;
    font-size: var(--text-sm, 13px);
    font-weight: 500;
    color: var(--text-primary, #1D1D1F);
    margin-bottom: var(--space-2, 8px);
}

.form-required {
    color: var(--destructive, #FF3B30);
}

.form-stack {
    display: flex;
    flex-direction: column;
    gap: var(--space-4, 16px);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group .form-label {
    margin-bottom: var(--space-2, 8px);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4, 16px);
}

@media (max-width: 767px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Form label row (label + action button) */
.form-label-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3, 12px);
    margin-bottom: var(--space-2, 8px);
}

.form-label-row .form-label {
    margin-bottom: 0;
}

/* Form hint text */
.form-hint {
    font-size: var(--text-xs, 11px);
    color: var(--text-tertiary, #86868B);
    margin-top: var(--space-2, 8px);
}

[data-theme="dark"] .form-hint {
    color: var(--text-tertiary, #6E6E73);
}

/* Range input styling */
.form-range-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--space-2, 8px);
}

.form-range {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    background: var(--bg-tertiary, #E5E5EA);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

.form-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--accent, #0071E3);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid var(--bg-primary, #FFFFFF);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
    transition: transform var(--duration-fast, 150ms);
}

.form-range::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.form-range::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--accent, #0071E3);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid var(--bg-primary, #FFFFFF);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.form-range-labels {
    display: flex;
    justify-content: space-between;
    font-size: var(--text-xs, 11px);
    color: var(--text-tertiary, #86868B);
}

.form-range-value {
    font-weight: 600;
    color: var(--accent, #0071E3);
}

/* Dark theme for form layout utilities */
[data-theme="dark"] .form-label {
    color: var(--text-primary, #F5F5F7);
}

[data-theme="dark"] .form-range {
    background: var(--bg-tertiary, #3A3A3C);
}

[data-theme="dark"] .form-range::-webkit-slider-thumb {
    border-color: var(--bg-secondary, #2C2C2E);
}

[data-theme="dark"] .form-range-labels {
    color: var(--text-tertiary, #6E6E73);
}

[data-theme="dark"] .form-range-value {
    color: var(--accent, #0A84FF);
}