/**
 * Restaurant Booking Form — Neutral Base
 *
 * Designed to blend into ANY restaurant website. No strong brand
 * colors — uses neutral grays and inherits from the site's own
 * typography when possible. The --rtb-primary-color and
 * --rtb-secondary-color custom properties (set by color-* classes
 * in form-styles.css) allow restaurant owners to customize.
 *
 * Default: warm neutral gray. No opinion.
 */

/* ── Container ── */
.rtb-booking-form {
    max-width: 540px;
    margin: 48px auto;
    box-sizing: border-box;
    position: relative;
    line-height: 1.6;
    font-family: inherit;
    color: #1a1a1a;
}

.rtb-booking-form *,
.rtb-booking-form *::before,
.rtb-booking-form *::after {
    box-sizing: border-box;
}

/* ── Title ── */
.rtb-booking-form__title {
    font-family: inherit;
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    color: #1a1a1a;
    text-align: center;
    margin: 0 0 clamp(1.5rem, 3vw, 2rem) 0;
    line-height: 1.2;
}

/* ── Fields ── */
.rtb-booking-form__field {
    margin-bottom: clamp(1rem, 2.5vw, 1.25rem);
}

.rtb-booking-form__label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    font-size: clamp(0.8125rem, 1.75vw, 0.875rem);
    color: #555;
    letter-spacing: .01em;
}

.rtb-booking-form__label--required::after {
    content: " *";
    color: var(--rtb-primary-color, #555);
    font-weight: 400;
}

/* ── Inputs ── */
.rtb-booking-form__input,
.rtb-booking-form__select,
.rtb-booking-form__textarea {
    width: 100%;
    padding: 11px 16px;
    min-height: 44px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: clamp(0.875rem, 1.75vw, 0.9375rem);
    font-family: inherit;
    line-height: 1.5;
    color: #1a1a1a;
    background: #ffffff;
    transition: border-color 200ms ease, box-shadow 200ms ease;
}

.rtb-booking-form__input:hover,
.rtb-booking-form__select:hover,
.rtb-booking-form__textarea:hover {
    border-color: #bbb;
}

.rtb-booking-form__input:focus,
.rtb-booking-form__select:focus,
.rtb-booking-form__textarea:focus {
    outline: none;
    border-color: var(--rtb-primary-color, #555);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, .06);
}

.rtb-booking-form__textarea {
    height: auto;
    min-height: 90px;
    padding: 12px 16px;
    resize: vertical;
}

/* ── Row layout ── */
.rtb-booking-form__row {
    display: flex;
    gap: clamp(0.75rem, 1.5vw, 1rem);
    margin-bottom: clamp(1rem, 2.5vw, 1.25rem);
}
.rtb-booking-form__row .rtb-booking-form__field {
    flex: 1;
    margin-bottom: 0;
}

/* ── Checkbox ── */
.rtb-booking-form__checkbox-wrapper {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.rtb-booking-form__checkbox {
    margin-top: 3px;
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--rtb-primary-color, #555);
    border-radius: 4px;
}

.rtb-booking-form__checkbox-label {
    font-size: clamp(0.75rem, 1.5vw, 0.8125rem);
    color: #888;
    line-height: 1.5;
    cursor: pointer;
}
.rtb-booking-form__checkbox-label a {
    color: var(--rtb-primary-color, #555);
    text-decoration: none;
    font-weight: 500;
}
.rtb-booking-form__checkbox-label a:hover {
    text-decoration: underline;
}

/* ── Errors ── */
.rtb-booking-form__error {
    display: block;
    margin-top: 4px;
    font-size: clamp(0.75rem, 1.5vw, 0.8125rem);
    color: #dc2626;
    font-weight: 500;
}

/* ── Submit button ── */
.rtb-booking-form__submit {
    width: 100%;
    padding: 14px 24px;
    min-height: 48px;
    background: var(--rtb-primary-color, #1a1a1a);
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: clamp(0.9375rem, 2vw, 1rem);
    font-weight: 600;
    line-height: 1;
    letter-spacing: .01em;
    cursor: pointer;
    transition: all 200ms ease;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: clamp(1rem, 2vw, 1.5rem);
}
.rtb-booking-form__submit:hover {
    background: var(--rtb-secondary-color, #333);
    box-shadow: 0 4px 16px rgba(0, 0, 0, .12);
    transform: translateY(-1px);
}
.rtb-booking-form__submit:active {
    transform: translateY(0);
}
.rtb-booking-form__submit:disabled {
    background: #999;
    cursor: not-allowed;
    opacity: .5;
    transform: none;
    box-shadow: none;
}

/* ── Loading ── */
.rtb-booking-form__loading {
    display: none;
    text-align: center;
    padding: clamp(1rem, 2vw, 1.5rem);
}
.rtb-booking-form__loading.is-active {
    display: block;
}

.rtb-booking-form__spinner {
    display: inline-block;
    width: 36px;
    height: 36px;
    border: 3px solid #ddd;
    border-top-color: var(--rtb-primary-color, #555);
    border-radius: 50%;
    animation: rtb-spin 0.8s linear infinite;
}

@keyframes rtb-spin {
    to { transform: rotate(360deg); }
}

/* ── Messages ── */
.rtb-booking-form__message {
    padding: clamp(0.75rem, 1.5vw, 1rem);
    margin-bottom: clamp(1rem, 2vw, 1.25rem);
    border-radius: 8px;
    font-size: clamp(0.8125rem, 1.75vw, 0.875rem);
    font-weight: 500;
}
.rtb-booking-form__message--success {
    background: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
}
.rtb-booking-form__message--error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* ── Time slots ── */
.rtb-booking-form__time-slots {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 8px;
    margin-top: 8px;
}

.rtb-booking-form__time-slot {
    padding: clamp(0.5rem, 1vw, 0.625rem);
    text-align: center;
    border: 1px solid #ddd;
    border-radius: 8px;
    cursor: pointer;
    transition: all 180ms ease;
    background: #ffffff;
    font-size: clamp(0.8125rem, 1.75vw, 0.875rem);
    font-weight: 500;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #1a1a1a;
}
.rtb-booking-form__time-slot:hover {
    border-color: var(--rtb-primary-color, #555);
    background: #f5f5f5;
    color: var(--rtb-primary-color, #333);
}
.rtb-booking-form__time-slot.is-selected {
    border-color: var(--rtb-primary-color, #1a1a1a);
    background: var(--rtb-primary-color, #1a1a1a);
    color: #ffffff;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .12);
}
.rtb-booking-form__time-slot.is-disabled {
    opacity: .35;
    cursor: not-allowed;
    background: #fafafa;
}

.rtb-booking-form__no-slots {
    padding: clamp(1rem, 2vw, 1.5rem);
    text-align: center;
    color: #999;
    font-style: italic;
    font-size: clamp(0.8125rem, 1.75vw, 0.875rem);
}

/* ── Responsive ── */
@media (max-width: 639px) {
    .rtb-booking-form {
        margin: 24px 16px;
        max-width: none;
    }
    .rtb-booking-form__row {
        flex-direction: column;
        gap: 0;
    }
    .rtb-booking-form__row .rtb-booking-form__field {
        margin-bottom: clamp(1rem, 2.5vw, 1.25rem);
    }
    .rtb-booking-form__time-slots {
        grid-template-columns: repeat(auto-fill, minmax(76px, 1fr));
    }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
    .rtb-booking-form__spinner {
        animation: none;
        border-top-color: transparent;
    }
}

/* Elementor compat */
.elementor-widget-container .rtb-booking-form {
    box-shadow: none;
}