/* ==========================================================================
   TrocaDireta — Formulários
   form-field, input, select, textarea, check, radio-card, switch,
   upload-control, date-range, code-input (chave do cupom)
   ========================================================================== */

.form {
    display: grid;
    gap: var(--space-5);
}

.form-grid {
    display: grid;
    gap: var(--space-4);
}

.form-grid--2,
.form-grid--3 { grid-template-columns: 1fr; }

.form-section {
    display: grid;
    gap: var(--space-4);
    padding-bottom: var(--space-6);
    border-bottom: 1px dashed var(--color-border);
}

.form-section:last-of-type { border-bottom: 0; padding-bottom: 0; }

.form-section__title { font-size: var(--fs-lg); }
.form-section__desc { margin-top: calc(var(--space-3) * -1); font-size: var(--fs-sm); color: var(--color-ink-soft); }

.form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    align-items: center;
    padding-top: var(--space-2);
}

.form-actions--end { justify-content: flex-end; }

.form-actions--sticky {
    position: sticky;
    bottom: 0;
    z-index: var(--z-sticky);
    margin-inline: calc(var(--gutter) * -1);
    padding: var(--space-3) var(--gutter);
    background: rgba(244, 248, 253, 0.94);
    border-top: 1px solid var(--color-line);
    backdrop-filter: blur(8px);
}

/* ---- Campo ---- */
.form-field,
.field {
    display: grid;
    gap: 6px;
    min-width: 0;
}

.form-field__label,
.field > span:first-child,
.field > label {
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    color: var(--color-ink-strong);
}

.form-field__optional {
    font-weight: var(--fw-regular);
    color: var(--color-ink-muted);
}

.form-field__hint {
    font-size: var(--fs-xs);
    color: var(--color-ink-muted);
}

.form-field__error {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    color: var(--color-danger);
}

.form-field__error::before {
    content: "!";
    display: grid;
    place-items: center;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-danger);
    color: #fff;
    font-size: 11px;
    font-weight: var(--fw-black);
}

.input,
.select,
.textarea,
.field input,
.field select,
.field textarea {
    width: 100%;
    min-height: 48px;
    padding: var(--space-3) var(--space-4);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-ink-strong);
    font-size: var(--fs-base);
    line-height: 1.3;
    transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
    -webkit-appearance: none;
    appearance: none;
}

.input::placeholder,
.textarea::placeholder,
.field input::placeholder { color: #a3b0bc; }

.input:hover,
.select:hover,
.textarea:hover,
.field input:hover { border-color: var(--color-border-strong); }

.input:focus,
.select:focus,
.textarea:focus,
.field input:focus,
.field select:focus,
.field textarea:focus {
    outline: none;
    border-color: var(--color-ink);
    box-shadow: 0 0 0 4px rgba(1, 40, 98, 0.1);
}

.input[aria-invalid="true"],
.form-field.has-error .input,
.form-field.has-error .select,
.form-field.has-error .textarea {
    border-color: var(--color-danger);
    background: #fffafa;
}

.input:disabled,
.select:disabled,
.textarea:disabled,
.input[readonly] {
    background: var(--color-surface-alt);
    color: var(--color-ink-muted);
    cursor: not-allowed;
}

.textarea,
.field textarea {
    min-height: 120px;
    resize: vertical;
    line-height: var(--lh-base);
}

.select,
.field select {
    padding-right: var(--space-10);
    background-image: linear-gradient(45deg, transparent 50%, var(--color-ink) 50%), linear-gradient(135deg, var(--color-ink) 50%, transparent 50%);
    background-position: calc(100% - 20px) 50%, calc(100% - 15px) 50%;
    background-size: 5px 5px;
    background-repeat: no-repeat;
}

/* Input com prefixo/sufixo (R$, %, ícone) */
.input-group {
    display: flex;
    align-items: stretch;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    overflow: hidden;
}

.input-group:focus-within { border-color: var(--color-ink); box-shadow: 0 0 0 4px rgba(1, 40, 98, 0.1); }

.input-group .input { border: 0; box-shadow: none; border-radius: 0; }

.input-group__addon {
    display: grid;
    place-items: center;
    padding-inline: var(--space-3);
    background: var(--color-surface-alt);
    color: var(--color-ink-soft);
    font-weight: var(--fw-semibold);
    font-size: var(--fs-sm);
}

/* Senha com botão mostrar */
.password-field { position: relative; }
.password-field .input { padding-right: 56px; }
.password-field__toggle {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    color: var(--color-ink-muted);
}
.password-field__toggle:hover { color: var(--color-ink); background: var(--color-bg); }

/* Medidor de força de senha */
.strength {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 4px;
    margin-top: 2px;
}

.strength span { height: 4px; border-radius: 2px; background: var(--color-line); }
.strength[data-level="1"] span:nth-child(-n+1) { background: var(--color-danger); }
.strength[data-level="2"] span:nth-child(-n+2) { background: var(--color-warning); }
.strength[data-level="3"] span:nth-child(-n+3) { background: var(--color-highlight); }
.strength[data-level="4"] span { background: var(--color-success); }

/* ---- Check / radio ---- */
.check {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    font-size: var(--fs-sm);
    color: var(--color-ink-soft);
    cursor: pointer;
}

.check input[type="checkbox"],
.check input[type="radio"] {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin: 1px 0 0;
    border: 1.5px solid var(--color-border-strong);
    border-radius: 5px;
    background: var(--color-surface);
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
    display: grid;
    place-items: center;
}

.check input[type="radio"] { border-radius: 50%; }

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

.check input[type="checkbox"]:checked::after {
    content: "";
    width: 5px;
    height: 10px;
    margin-top: -2px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.check input[type="radio"]:checked::after {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #fff;
}

.check input:focus-visible { box-shadow: var(--focus-ring); }

.check a { font-weight: var(--fw-semibold); }

/* Radio em forma de cartão (tipo de cupom, plano) */
.radio-cards {
    display: grid;
    gap: var(--space-3);
    grid-template-columns: repeat(auto-fit, minmax(min(180px, 100%), 1fr));
}

.radio-card {
    position: relative;
    display: grid;
    gap: 4px;
    padding: var(--space-4);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    cursor: pointer;
    transition: border-color var(--dur-fast), background var(--dur-fast);
}

.radio-card input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.radio-card__title { font-weight: var(--fw-bold); color: var(--color-ink-strong); }
.radio-card__desc { font-size: var(--fs-xs); color: var(--color-ink-muted); }

.radio-card:hover { border-color: var(--color-border-strong); }

.radio-card:has(input:checked) {
    border-color: var(--color-primary);
    background: #eef7ff;
    box-shadow: inset 0 0 0 1px var(--color-primary);
}

.radio-card:has(input:focus-visible) { box-shadow: var(--focus-ring); }

/* ---- Switch ---- */
.switch {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
    font-size: var(--fs-sm);
}

.switch input {
    position: relative;
    width: 44px;
    height: 26px;
    flex-shrink: 0;
    border-radius: var(--radius-pill);
    background: var(--color-border);
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
    transition: background var(--dur-base);
}

.switch input::after {
    content: "";
    position: absolute;
    top: 3px;
    left: 3px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #fff;
    box-shadow: var(--shadow-xs);
    transition: transform var(--dur-base) var(--ease-spring);
}

.switch input:checked { background: var(--color-success); }
.switch input:checked::after { transform: translateX(18px); }
.switch input:focus-visible { box-shadow: var(--focus-ring); }

/* ---- Upload control ---- */
.upload-control {
    position: relative;
    display: grid;
    justify-items: center;
    gap: var(--space-2);
    padding: var(--space-8) var(--space-5);
    border: 2px dashed var(--color-border-strong);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    text-align: center;
    cursor: pointer;
    transition: border-color var(--dur-fast), background var(--dur-fast);
}

.upload-control:hover,
.upload-control.is-dragover {
    border-color: var(--color-primary);
    background: #eef7ff;
}

.upload-control input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.upload-control__icon {
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-primary-soft);
    color: var(--color-primary-strong);
}

.upload-control__title { font-weight: var(--fw-bold); color: var(--color-ink-strong); }
.upload-control__hint { font-size: var(--fs-xs); color: var(--color-ink-muted); }

.upload-control__preview {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
}

.upload-control__preview img {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.upload-control--cover { aspect-ratio: 3 / 1; padding: var(--space-5); align-content: center; }

/* ---- Date range ---- */
.date-range {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 4px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
}

.date-range input {
    min-height: 36px;
    padding: 0 var(--space-2);
    border: 0;
    background: transparent;
    font-size: var(--fs-sm);
    color: var(--color-ink-strong);
}

.date-range__sep { color: var(--color-ink-muted); font-size: var(--fs-sm); }

.date-presets {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
}

/* ---- Code input (ID do cupom e chave de confirmação) ---- */
.code-input {
    width: 100%;
    min-height: 60px;
    padding: var(--space-3) var(--space-4);
    border: 2px dashed var(--color-ink);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    color: var(--color-ink-strong);
    font-family: var(--font-display);
    font-size: var(--fs-xl);
    font-weight: var(--fw-bold);
    font-variation-settings: "wdth" var(--wdth-wide);
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.12em;
    text-align: center;
    text-transform: uppercase;
}

.code-input::placeholder { color: #c1cad3; letter-spacing: 0.12em; }
.code-input:focus { outline: none; border-style: solid; box-shadow: 0 0 0 4px rgba(1, 40, 98, 0.12); }

/* Dígitos individuais (verificação de telefone) */
.otp {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
}

.otp input {
    width: 48px;
    height: 58px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    font-family: var(--font-display);
    font-size: var(--fs-xl);
    font-weight: var(--fw-bold);
    text-align: center;
    color: var(--color-ink-strong);
}

.otp input:focus { outline: none; border-color: var(--color-ink); box-shadow: 0 0 0 4px rgba(1, 40, 98, 0.1); }

/* ---- Fieldset ---- */
fieldset {
    min-width: 0;
    padding: 0;
    border: 0;
}

legend {
    padding: 0;
    margin-bottom: var(--space-3);
    font-weight: var(--fw-semibold);
    font-size: var(--fs-sm);
    color: var(--color-ink-strong);
}

/* Login da administração (layout de acesso) */
.admin-login .eyebrow { display: none; }
.admin-login h1 { font-size: var(--fs-2xl); margin-bottom: var(--space-5); }
.admin-login .form-grid { gap: var(--space-4); }
.admin-login .button { width: 100%; min-height: 52px; }