/* ================================================
   Forms — Styles unifiés pour tous les composants
   de formulaire du design system Chalet Montagne
   ================================================
   Composants couverts :
     - .form-header      (form-header.html.twig)
     - .form-alert       (form-alert.html.twig)
     - .form-section     (form-section.html.twig)
     - .form-field       (form-field.html.twig)
     - .form-field--textarea (form-textarea.html.twig)
     - .form-checkbox    (form-checkbox.html.twig)
     - .form-radio-group (form-radio-group.html.twig)
     - .form-note        (form-note.html.twig)
     - .form-grid        (layout responsive)
   ================================================ */


/* ── Form Header ─────────────────────────────── */

.form-header {
    margin-bottom: 32px;
    text-align: center;
}

.form-header__title {
    font-family: var(--font-helvetica);
    font-size: 36px;
    font-weight: var(--font-weight-bold);
    color: var(--dark1);
    line-height: 46.80px;
    word-wrap: break-word;
    margin: 0 0 12px 0;
}

.form-header__subtitle {
    font-family: var(--font-rubik);
    font-size: var(--font-size-small);
    font-weight: var(--font-weight-regular);
    color: var(--dark1);
    line-height: var(--line-height-body);
    word-wrap: break-word;
    margin: 0;
}


/* ── Form Alert ──────────────────────────────── */

.form-alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 18px;
    border-radius: var(--border-radius-small);
    margin-bottom: 24px;
}

.form-alert--info {
    background-color: var(--white);
    border: 1px solid var(--form-alert-info-border);
    color: var(--dark-blue);
}

.form-alert--warning {
    background-color: var(--form-alert-warning-bg);
    border: 1px solid var(--form-alert-warning-border);
    color: var(--dark1);
}

.form-alert--success {
    background-color: var(--form-alert-success-bg);
    border: 1px solid var(--form-alert-success-border);
    color: var(--dark2);
}

.form-alert__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: 2px;
    font-size: 16px;
    color: inherit;
}

.form-alert--warning .form-alert__icon { color: var(--dark-yellow); }
.form-alert--success .form-alert__icon { color: var(--emerald-500); }

.form-alert__content {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.form-alert__message {
    font-family: var(--font-rubik);
    font-size: var(--font-size-small);
    font-weight: var(--font-weight-semibold);
    color: var(--dark-blue);
    word-wrap: break-word;
    margin: 0;
    line-height: 1.5;
}

.form-alert__sub {
    font-family: var(--font-rubik);
    font-size: var(--font-size-small);
    font-weight: var(--font-weight-regular);
    color: var(--dark-blue);
    word-wrap: break-word;
    margin: 0;
    line-height: 1.4;
}


/* ── Form Section ────────────────────────────── */

.form-section {
    background: var(--white);
    border: 1px solid var(--neutral-200);
    border-radius: var(--border-radius-medium);
    overflow: hidden;
    margin-bottom: 16px;
}

.form-section__header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 18px 24px 16px;
    border-bottom: 1px solid var(--neutral-200);
    background: var(--light3);
}

.form-section__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--white);
    border: 1.5px solid var(--main-color);
    border-radius: 50%;
    font-size: 13px;
    font-weight: 400; /* FA regular = outlined */
    color: var(--main-color);
    flex-shrink: 0;
    transition: font-weight 0s, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.form-section:hover .form-section__icon {
    font-weight: 900; /* FA solid = filled */
    background: var(--main-color);
    color: var(--white);
}

.form-section__title {
    font-family: var(--font-rubik);
    font-size: 15px;
    font-weight: 600;
    color: var(--dark1);
    margin: 0;
    letter-spacing: -0.01em;
}

.form-section__body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}


/* ── Form Field — Input ──────────────────────── */

.form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-field__label {
    font-family: var(--font-rubik);
    font-size: 13px;
    font-weight: 500;
    color: var(--dark1);
    line-height: 1.4;
    cursor: default;
}

.form-field__label--required .form-field__required,
.form-field__required {
    color: var(--main-color-orange);
    font-weight: 600;
}

.form-field__input,
.form-field__textarea {
    font-family: var(--font-rubik);
    font-size: var(--font-size-small);
    color: var(--dark1);
    background: var(--white);
    border: 1px solid var(--light1);
    border-radius: var(--border-radius-small);
    padding: 10px 14px;
    width: 100%;
    box-sizing: border-box;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    outline: none;
    line-height: 1.5;
}

.form-field__input::placeholder,
.form-field__textarea::placeholder {
    color: var(--gray2);
    font-weight: var(--font-weight-regular);
}

.form-field__input:focus,
.form-field__textarea:focus {
    border-color: var(--main-color);
    box-shadow: 0 0 0 3px rgba(250, 171, 87, 0.18);
}

/* number — cacher les flèches natives */
.form-field__input[type="number"]::-webkit-inner-spin-button,
.form-field__input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.form-field__input[type="number"] {
    -moz-appearance: textfield;
}

/* ── Date Field Trigger ── */
.form-field__date-wrap {
    position: relative;
}

.form-field__input--date {
    cursor: pointer;
    padding-right: 40px;
}

.form-field__date-icon {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray2);
    font-size: 14px;
    pointer-events: none;
    transition: color 0.2s ease;
}

.form-field__date-wrap:hover .form-field__date-icon,
.form-field__input--date:focus ~ .form-field__date-icon {
    color: var(--main-color);
}

.form-date-picker-dropdown {
    margin-top: 8px;
}

/* ── Textarea ── */
.form-field--textarea .form-field__textarea {
    resize: vertical;
    min-height: 110px;
}

/* ── Help text ── */
.form-field__help {
    font-family: var(--font-rubik);
    font-size: 12px;
    color: var(--gray-system);
    margin: 0;
    line-height: 1.4;
}


/* ── Form Checkbox ───────────────────────────── */

.form-checkbox {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.form-checkbox__label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
}

.form-checkbox__input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.form-checkbox__custom {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border: 1.5px solid var(--light1);
    border-radius: 4px;
    background: var(--white);
    flex-shrink: 0;
    transition: border-color 0.2s ease, background 0.2s ease;
    position: relative;
}

.form-checkbox__custom::after {
    content: '';
    display: block;
    width: 4px;
    height: 8px;
    border: 2px solid var(--white);
    border-top: none;
    border-left: none;
    transform: rotate(45deg) translateY(-1px);
    opacity: 0;
    transition: opacity 0.15s ease;
}

.form-checkbox__input:checked ~ .form-checkbox__custom {
    background: var(--main-color);
    border-color: var(--main-color);
}

.form-checkbox__input:checked ~ .form-checkbox__custom::after {
    opacity: 1;
}

.form-checkbox__label:hover .form-checkbox__custom {
    border-color: var(--main-color);
}

.form-checkbox__text {
    font-family: var(--font-rubik);
    font-size: 14px;
    color: var(--dark1);
    line-height: 1.4;
}


/* ── Form Radio Group ────────────────────────── */

.form-radio-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.form-radio-group__options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.form-radio-group__option {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    border: 1.5px solid var(--light1);
    border-radius: var(--border-radius-small);
    background: var(--white);
    cursor: pointer;
    user-select: none;
    transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.form-radio-group__option:hover {
    border-color: var(--main-color);
    background: var(--light-warm);
}

.form-radio-group__option--selected {
    border-color: var(--main-color);
    background: var(--light-warm);
}

.form-radio-group__input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.form-radio-group__custom {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border: 1.5px solid var(--light1);
    border-radius: 50%;
    background: var(--white);
    flex-shrink: 0;
    margin-top: 2px;
    transition: border-color 0.2s ease, background 0.2s ease;
    position: relative;
}

.form-radio-group__custom::after {
    content: '';
    display: block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--main-color);
    opacity: 0;
    transition: opacity 0.15s ease;
}

.form-radio-group__input:checked ~ .form-radio-group__custom {
    border-color: var(--main-color);
}

.form-radio-group__input:checked ~ .form-radio-group__custom::after {
    opacity: 1;
}

.form-radio-group__option:hover .form-radio-group__custom {
    border-color: var(--main-color);
}

.form-radio-group__text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.form-radio-group__label {
    font-family: var(--font-rubik);
    font-size: 14px;
    font-weight: 500;
    color: var(--dark1);
    line-height: 1.4;
}

.form-radio-group__desc {
    font-family: var(--font-rubik);
    font-size: 13px;
    color: var(--neutral-500);
    line-height: 1.4;
}


/* ── Form Note ───────────────────────────────── */

.form-note {
    font-family: var(--font-rubik);
    font-size: 12px;
    color: var(--gray-system);
    margin: 16px 0 0;
    line-height: 1.5;
}

.form-note strong,
.form-note b {
    color: var(--main-color-orange);
    font-weight: 600;
}


/* ── Form Grid — Layout responsive ──────────── */

.form-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: 1fr;
}

.form-grid--2 {
    grid-template-columns: repeat(2, 1fr);
}

.form-grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

.form-grid--4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
    .form-grid--3,
    .form-grid--4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .form-grid--2,
    .form-grid--3,
    .form-grid--4 {
        grid-template-columns: 1fr;
    }

    .form-section__body {
        padding: 16px;
    }

    .form-section__header {
        padding: 14px 16px 12px;
    }
}