/**
 * TSSM Registration Form Styles
 *
 * Uses CSS custom properties from the tssm-skyline-heritage design-tokens.css.
 * Mobile-first responsive layout.
 *
 * @package TSSM_EventRegistration
 */

/* ==========================================================================
   Form Container
   ========================================================================== */

.tssm-reg {
    max-width: var(--layout-narrow-width);
    margin-left: auto;
    margin-right: auto;
    padding: var(--space-6);
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

/* ==========================================================================
   Header and Capacity Indicator
   ========================================================================== */

.tssm-reg__header {
    text-align: center;
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-5);
    border-bottom: 1px solid var(--color-border-subtle);
}

.tssm-reg__title {
    font-size: var(--font-size-h3);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    margin-bottom: var(--space-3);
}

.tssm-reg__capacity {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

.tssm-reg__capacity-count {
    font-size: var(--font-size-h4);
    font-weight: var(--font-weight-bold);
    color: var(--color-success);
    display: inline;
}

/* ==========================================================================
   Section Headings
   ========================================================================== */

.tssm-reg__section {
    margin-bottom: var(--space-6);
}

.tssm-reg__section-title {
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-2);
    border-bottom: 1px solid var(--color-border-subtle);
}

/* ==========================================================================
   Form Rows (Responsive Grid)
   ========================================================================== */

.tssm-reg__row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

@media (min-width: 640px) {
    .tssm-reg__row {
        grid-template-columns: 1fr 1fr;
    }

    .tssm-reg__row--quad {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 1024px) {
    .tssm-reg__row--quad {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ==========================================================================
   Form Group Overrides (extends theme .tssm-form-group)
   ========================================================================== */

.tssm-reg .tssm-form-group {
    margin-bottom: var(--space-4);
}

/* ==========================================================================
   Required / Optional Indicators
   ========================================================================== */

.tssm-required {
    color: var(--color-error);
    font-weight: var(--font-weight-bold);
}

.tssm-optional {
    color: var(--color-text-muted);
    font-size: var(--font-size-micro);
    font-weight: var(--font-weight-regular);
}

/* ==========================================================================
   Ticket Type Cards
   ========================================================================== */

.tssm-ticket-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3);
}

@media (min-width: 640px) {
    .tssm-ticket-cards {
        grid-template-columns: repeat(3, 1fr);
    }
}

.tssm-ticket-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-4);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-all);
    text-align: center;
    background: var(--color-surface);
}

.tssm-ticket-card:hover:not(.tssm-ticket-card--disabled) {
    border-color: var(--color-primary);
}

.tssm-ticket-card--selected {
    border-color: var(--color-primary);
    background: rgba(200, 155, 60, 0.08);
}

.tssm-ticket-card--disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.tssm-ticket-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.tssm-ticket-card__label {
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--space-2);
}

.tssm-ticket-card__price {
    font-size: var(--font-size-h4);
    font-weight: var(--font-weight-bold);
    color: #fff;
    margin-bottom: var(--space-1);
}

.tssm-ticket-card__availability {
    font-size: var(--font-size-micro);
    color: var(--color-text-muted);
}

/* ==========================================================================
   Discount Code Section
   ========================================================================== */

.tssm-discount-input-row {
    display: flex;
    gap: var(--space-2);
}

.tssm-discount-input-row input {
    flex: 1;
}

.tssm-discount-result {
    margin-top: var(--space-2);
    font-size: var(--font-size-body);
}

.tssm-discount-original {
    text-decoration: line-through;
    color: var(--color-text-muted);
    margin-right: var(--space-2);
}

.tssm-discount-final {
    font-weight: var(--font-weight-bold);
    color: var(--color-success);
}

/* ==========================================================================
   Submit Button
   ========================================================================== */

.tssm-reg__footer {
    margin-top: var(--space-6);
    text-align: center;
}

.tssm-reg__submit {
    width: 100%;
    max-width: 320px;
    font-size: var(--font-size-body);
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
    font-weight: var(--font-weight-semibold);
    background-color: var(--color-primary);
    color: var(--color-text);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition-all);
    min-height: 48px;
}

.tssm-reg__submit:hover {
    background-color: var(--color-primary-light);
    transform: translateY(-1px);
}

.tssm-reg__submit:focus-visible {
    outline: 2px solid var(--color-link);
    outline-offset: 2px;
}

.tssm-reg__submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* ==========================================================================
   Form Message (success / error banner)
   ========================================================================== */

.tssm-reg__message {
    margin-bottom: var(--space-4);
    min-height: 0;
}

.tssm-reg__message:empty {
    display: none;
}

.tssm-reg__message--error {
    display: block;
    padding: var(--space-3) var(--space-4);
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--color-error);
    border-radius: var(--radius-md);
    color: var(--color-error);
    font-size: var(--font-size-small);
}

.tssm-reg__message--success {
    display: block;
    padding: var(--space-3) var(--space-4);
    background-color: rgba(34, 197, 94, 0.1);
    border: 1px solid var(--color-success);
    border-radius: var(--radius-md);
    color: var(--color-success);
    font-size: var(--font-size-small);
}

/* ==========================================================================
   Notice States (Registration Full / Closed)
   ========================================================================== */

.tssm-reg-notice {
    max-width: var(--layout-narrow-width);
    margin-left: auto;
    margin-right: auto;
    padding: var(--space-7);
    text-align: center;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.tssm-reg-notice p {
    font-size: var(--font-size-h3);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-secondary);
    margin: 0;
}

.tssm-reg-notice--full p {
    color: var(--color-error);
}

.tssm-reg-notice--closed p {
    color: var(--color-warning);
}

/* ==========================================================================
   Digital Waiver Section
   ========================================================================== */

.tssm-waiver {
    margin-top: var(--space-3);
}

.tssm-waiver__text {
    max-height: 300px;
    overflow-y: auto;
    background: var(--color-surface);
    border: 1px solid var(--color-tertiary);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    color: var(--color-text);
    font-size: var(--font-size-small);
    line-height: var(--line-height-relaxed);
}

.tssm-waiver__text:focus-visible {
    outline: 2px solid var(--color-border-focus);
    outline-offset: 2px;
}

.tssm-waiver__text p {
    margin-top: 0;
    margin-bottom: var(--space-3);
}

.tssm-waiver__text p:last-child {
    margin-bottom: 0;
}

.tssm-waiver__text strong {
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
}

.tssm-waiver__checkbox-group {
    margin-top: var(--space-4);
}

.tssm-waiver__label {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    cursor: pointer;
    font-size: var(--font-size-body);
    color: var(--color-text);
    line-height: var(--line-height-normal);
}

.tssm-waiver__label input[type="checkbox"] {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: 2px;
    accent-color: var(--color-primary);
    cursor: pointer;
}

.tssm-waiver__label input[type="checkbox"]:focus-visible {
    outline: 2px solid var(--color-border-focus);
    outline-offset: 2px;
}

/* Error state: waiver checkbox not checked on submission attempt. */
.tssm-waiver__text--error {
    border-color: var(--color-error);
}

.tssm-waiver__label--error input[type="checkbox"] {
    outline: 2px solid var(--color-error);
    outline-offset: 1px;
}

/* ==========================================================================
   T-Shirt Add-On Section
   ========================================================================== */

.tssm-tshirt-section {
    background: var(--color-surface-raised, var(--color-surface));
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-5);
    margin-bottom: var(--space-4);
}

.tssm-tshirt-intro {
    margin-bottom: var(--space-4);
}

.tssm-tshirt-intro p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-small);
    margin: 0;
}

.tssm-tshirt-image {
    margin-bottom: var(--space-4);
    text-align: center;
}

.tssm-tshirt-image img {
    max-width: 200px;
    height: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-subtle);
}

.tssm-tshirt-selections {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.tssm-tshirt-row {
    display: flex;
    align-items: flex-end;
    gap: var(--space-3);
    padding: var(--space-3);
    background: var(--color-surface);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-sm);
}

.tssm-tshirt-row__size {
    flex: 1;
}

.tssm-tshirt-row__size label {
    display: block;
    font-size: var(--font-size-micro);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-1);
}

.tssm-tshirt-row__size select {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-body);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: var(--color-surface);
    color: var(--color-text);
}

.tssm-tshirt-row__price {
    display: flex;
    align-items: center;
    min-width: 70px;
    justify-content: center;
}

.tssm-tshirt-price-label {
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
}

.tssm-tshirt-price-label--free {
    color: var(--color-success);
    text-transform: uppercase;
    font-size: var(--font-size-small);
}

.tssm-tshirt-row__remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition-all);
}

.tssm-tshirt-row__remove:hover {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-error);
}

.tssm-add-tshirt {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-small);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    background: transparent;
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-all);
}

.tssm-add-tshirt:hover:not(:disabled) {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.tssm-add-tshirt:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.tssm-tshirt-summary {
    margin-top: var(--space-4);
    padding-top: var(--space-3);
    border-top: 1px solid var(--color-border-subtle);
}

.tssm-tshirt-summary__row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tssm-tshirt-count {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
}

.tssm-tshirt-total {
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
}

/* ==========================================================================
   Mobile-first Responsive Adjustments
   ========================================================================== */

@media (max-width: 479px) {
    .tssm-reg {
        padding: var(--space-4);
        border-radius: var(--radius-md);
    }

    .tssm-reg__title {
        font-size: var(--font-size-h4);
    }

    .tssm-reg__submit {
        width: 100%;
        max-width: none;
    }

    .tssm-waiver__text {
        max-height: 250px;
        padding: var(--space-3);
    }

    .tssm-tshirt-section {
        padding: var(--space-4);
    }

    .tssm-tshirt-row {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-2);
    }

    .tssm-tshirt-row__price {
        justify-content: flex-start;
    }

    .tssm-tshirt-row__remove {
        position: absolute;
        top: var(--space-2);
        right: var(--space-2);
    }

    .tssm-tshirt-row {
        position: relative;
        padding-right: var(--space-10);
    }
}