/* =============================================================================
   lib/styles/components/forms.css — Filtra-Core Form Input System
   Covers: TextInput, SelectDropdown, CheckboxGroup, RadioGroup, FormValidator
   ============================================================================= */

/* =============================================================================
   TEXT INPUT
   ============================================================================= */
.form-field {
    display: flex;
    flex-direction: column;
    width: 100%;
}

.form-field__label {
    display: block;
    font-family: var(--font-sans, 'Inter', sans-serif);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary, #0A192F);
    margin-bottom: 8px;
    line-height: 1.4;
}

.form-field__required {
    color: #EF4444; /* Alert Red */
    font-weight: 700;
    margin-left: 1px;
}

.form-field__helper {
    display: block;
    font-family: var(--font-sans, 'Inter', sans-serif);
    font-size: 12px;
    color: #6B7280;
    margin-bottom: 6px;
    line-height: 1.5;
}

.form-field__input-wrapper {
    position: relative;
    display: flex;
    align-items: stretch;
}

.form-field__input {
    width: 100%;
    min-height: 44px;
    padding: 12px 14px;
    background-color: #FFFFFF;
    border: 1px solid #D1D5DB; /* Slightly stronger border for industrial feel */
    border-radius: 4px; /* Sharper corners */
    font-family: var(--font-sans, 'Inter', sans-serif);
    font-size: 16px;
    color: #1F2937;
    box-sizing: border-box;
    transition: border-color 150ms ease-out, box-shadow 150ms ease-out;
    outline: none;
    appearance: none;
}

.form-field__input::placeholder {
    color: rgba(107, 114, 128, 0.75);
}

.form-field--multiline .form-field__input {
    min-height: 120px;
    resize: vertical;
    padding-right: 14px;
}

/* Focus */
.form-field__input:focus {
    border-color: var(--color-accent, #00B4D8);
    box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15);
}

/* Error */
.form-field__input--error {
    border-width: 2px;
    border-color: #EF4444;
    padding: 11px 13px;
}

.form-field__input--error:focus {
    border-color: #EF4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.10);
}

/* Success */
.form-field__input--success {
    border-width: 2px;
    border-color: #10B981;
    padding: 11px 42px 11px 13px;
}

.form-field__input--success:focus {
    border-color: #10B981;
    box-shadow: 0 0 0 3px rgba(16, 185, 145, 0.10);
}

.form-field__success-icon {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: #10B981;
    font-size: 16px;
    pointer-events: none;
}

/* Disabled */
.form-field--disabled .form-field__input {
    background-color: #F3F4F6;
    color: #6B7280;
    cursor: not-allowed;
    border-color: #E5E7EB;
}

/* =============================================================================
   SELECT DROPDOWN
   ============================================================================= */
.form-field__select-wrapper {
    position: relative;
    display: flex;
    align-items: stretch;
}

.form-field__select-chevron {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-accent, #00B4D8);
    font-size: 13px;
    pointer-events: none;
    transition: transform 200ms ease-out;
}

.form-field__select:focus ~ .form-field__select-chevron {
    transform: translateY(-50%) rotate(180deg);
}

.form-field__select {
    width: 100%;
    min-height: 44px;
    padding: 12px 42px 12px 14px;
    background-color: #FFFFFF;
    border: 1px solid #D1D5DB;
    border-radius: 4px;
    font-family: var(--font-sans, 'Inter', sans-serif);
    font-size: 16px;
    color: #1F2937;
    box-sizing: border-box;
    cursor: pointer;
    transition: border-color 150ms ease-out, box-shadow 150ms ease-out;
    outline: none;
    appearance: none;
}

.form-field__select:focus {
    border-color: var(--color-accent, #00B4D8);
    box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15);
}

/* Error/Success states match TextInput logic */
.form-field__select--error { border-width: 2px; border-color: #EF4444; padding: 11px 41px 11px 13px; }
.form-field__select--error:focus { border-color: #EF4444; box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.10); }
.form-field--error .form-field__select-chevron { color: #EF4444; }

/* =============================================================================
   CHECKBOX GROUP
   ============================================================================= */
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
    border: none;
    padding: 0;
    margin: 0;
}

.checkbox-group__legend {
    font-family: var(--font-sans, 'Inter', sans-serif);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary, #0A192F);
    margin-bottom: 10px;
}

.checkbox__item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    position: relative;
    cursor: pointer;
    min-height: 24px;
}

.checkbox__input {
    position: absolute;
    opacity: 0;
    width: 24px;
    height: 24px;
    cursor: pointer;
    z-index: 1;
}

.checkbox__indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    margin-top: 2px;
    background-color: #FFFFFF;
    border: 2px solid #D1D5DB;
    border-radius: 4px;
    transition: all 150ms ease-out;
}

.checkbox__indicator--checked {
    background-color: var(--color-accent, #00B4D8);
    border-color: var(--color-accent, #00B4D8);
}

.checkbox__item:hover:not(.checkbox__item--disabled) .checkbox__indicator {
    border-color: var(--color-accent, #00B4D8);
}

.checkbox__input:focus-visible ~ .checkbox__indicator {
    outline: 3px solid var(--color-gold, #F59E0B);
    outline-offset: 3px;
}

.checkbox__checkmark {
    font-size: 11px;
    color: var(--color-primary, #0A192F);
}

.checkbox__label {
    font-family: var(--font-sans, 'Inter', sans-serif);
    font-size: 14px;
    color: #1F2937;
    line-height: 1.6;
    flex: 1;
}

/* =============================================================================
   RADIO GROUP
   ============================================================================= */
.radio-group {
    display: flex;
    flex-direction: column;
    border: none;
    padding: 0;
    margin: 0;
}

.radio-group__items {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.radio__item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    position: relative;
    cursor: pointer;
    min-height: 24px;
}

.radio__input {
    position: absolute;
    opacity: 0;
    width: 24px;
    height: 24px;
    cursor: pointer;
    z-index: 1;
}

.radio__indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    margin-top: 2px;
    background-color: #FFFFFF;
    border: 2px solid #D1D5DB;
    border-radius: 50%;
    transition: all 150ms ease-out;
}

.radio__indicator--checked {
    background-color: var(--color-accent, #00B4D8);
    border-color: var(--color-accent, #00B4D8);
}

.radio__item:hover:not(.radio__item--disabled) .radio__indicator {
    border-color: var(--color-accent, #00B4D8);
}

.radio__input:focus-visible ~ .radio__indicator {
    outline: 3px solid var(--color-gold, #F59E0B);
    outline-offset: 3px;
}

.radio__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-primary, #0A192F);
}

.radio__label {
    display: flex;
    flex-direction: column;
    font-size: 14px;
    color: #1F2937;
    line-height: 1.5;
    flex: 1;
}

.radio__item--selected .radio__label {
    color: var(--color-primary, #0A192F);
    font-weight: 600;
}

/* =============================================================================
   FORM VALIDATOR BANNER
   ============================================================================= */
.form-validator {
    position: relative;
    background-color: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.30);
    border-radius: 4px;
    padding: 16px 20px;
    margin-bottom: 24px;
    width: 100%;
    animation: fc-validator-slide-in 250ms ease-out forwards;
}

.form-validator--hidden { display: none; }

@keyframes fc-validator-slide-in {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.form-validator__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.form-validator__count {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: #C81E1E;
}

.form-validator__error-list {
    list-style: none;
    padding: 0;
    margin: 12px 0 0 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    overflow: hidden;
    animation: fc-list-expand 200ms ease-out forwards;
}

@keyframes fc-list-expand {
    from { opacity: 0; }
    to { opacity: 1; }
}

.form-validator__error-list--collapsed { display: none; }

.form-validator__error-message {
    display: inline-flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 13px;
    color: #C81E1E;
    line-height: 1.5;
}

.form-validator__error-link { text-decoration: none; color: inherit; }
.form-validator__error-link:hover .form-validator__error-message { text-decoration: underline; }