/* ========================================
   CongresoApp - Frontend Form Styles (v1.2.0)
   ======================================== */

:root {
    --ca-f-primary: #0073aa;
    --ca-f-primary-dark: #005177;
    --ca-f-primary-light: #00a0d2;
    --ca-f-accent: #f59e0b;
    --ca-f-success: #10b981;
    --ca-f-danger: #ef4444;
    --ca-f-warning: #f59e0b;
    --ca-f-text: #1f2937;
    --ca-f-text-muted: #6b7280;
    --ca-f-border: #e5e7eb;
    --ca-f-bg: #f9fafb;
    --ca-f-white: #ffffff;
    --ca-f-radius: 12px;
    --ca-f-radius-sm: 8px;
    --ca-f-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --ca-f-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --ca-f-shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
    --ca-f-transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   EVENT HEADER
   ======================================== */
.ca-event-header {
    max-width: 640px;
    margin: 2em auto 0;
    background: linear-gradient(135deg, var(--ca-f-primary) 0%, var(--ca-f-primary-dark) 100%);
    border-radius: var(--ca-f-radius) var(--ca-f-radius) 0 0;
    padding: 2em 2.5em;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.ca-event-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    pointer-events: none;
}

.ca-event-header-content {
    position: relative;
    z-index: 1;
}

.ca-event-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(4px);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.ca-event-title {
    margin: 0 0 12px;
    font-size: 28px;
    font-weight: 700;
    line-height: 1.2;
    color: #fff;
}

.ca-event-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
}

.ca-event-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* ========================================
   MAIN FORM
   ======================================== */
.ca-form {
    max-width: 640px;
    margin: 0 auto 2em;
    padding: 2.5em;
    background: var(--ca-f-white);
    border-radius: 0 0 var(--ca-f-radius) var(--ca-f-radius);
    box-shadow: var(--ca-f-shadow);
    position: relative;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* When no event header, round corners all sides */
.ca-form:first-child {
    border-radius: var(--ca-f-radius);
    margin-top: 2em;
}

/* ========================================
   SECTIONS
   ======================================== */
.ca-form-section {
    margin-bottom: 2em;
    padding-bottom: 2em;
    border-bottom: 1px solid var(--ca-f-border);
}

.ca-form-section:last-child {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
}

.ca-section-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 1.5em;
}

.ca-section-number {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--ca-f-primary), var(--ca-f-primary-light));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 15px;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(0, 115, 170, 0.25);
}

.ca-section-title {
    margin: 0;
    font-size: 17px;
    font-weight: 700;
    color: var(--ca-f-text);
}

.ca-section-subtitle {
    margin: 2px 0 0;
    font-size: 13px;
    color: var(--ca-f-text-muted);
}

/* ========================================
   FORM FIELDS
   ======================================== */
.ca-form .form-group {
    margin-bottom: 1.2em;
    position: relative;
}

.ca-form .form-group:last-child {
    margin-bottom: 0;
}

.ca-form label {
    display: flex !important;
    align-items: center;
    gap: 4px;
    margin-bottom: 0.5em;
    font-weight: 600;
    color: var(--ca-f-text);
    font-size: 13px;
}

.ca-form label .required {
    color: var(--ca-f-danger);
    font-weight: 700;
}

.ca-form .input-container {
    position: relative;
    display: flex;
    align-items: center;
}

.ca-form .field-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--ca-f-text-muted);
    pointer-events: none;
    display: flex;
    align-items: center;
    transition: var(--ca-f-transition);
}

.ca-form input[type="text"],
.ca-form input[type="email"],
.ca-form input[type="tel"],
.ca-form input[type="number"] {
    width: 100%;
    padding: 12px 16px 12px 44px;
    font-size: 15px;
    border: 2px solid var(--ca-f-border);
    border-radius: var(--ca-f-radius-sm);
    background: var(--ca-f-white);
    color: var(--ca-f-text);
    transition: var(--ca-f-transition);
    font-family: inherit;
    box-sizing: border-box;
}

.ca-form input::placeholder {
    color: #9ca3af;
}

.ca-form input:hover {
    border-color: #cbd5e0;
}

.ca-form input:focus {
    outline: none;
    border-color: var(--ca-f-primary);
    box-shadow: 0 0 0 4px rgba(0, 115, 170, 0.12);
    background: var(--ca-f-white);
}

.ca-form input:focus + .field-icon,
.ca-form .input-container:focus-within .field-icon {
    color: var(--ca-f-primary);
}

.ca-form input:valid:not(:placeholder-shown) {
    border-color: var(--ca-f-success);
    background: #f0fdf4;
}

.ca-form input:invalid:not(:placeholder-shown):not(:focus) {
    border-color: var(--ca-f-danger);
    background: #fef2f2;
}

.ca-form .error-message {
    display: none;
    margin-top: 4px;
    font-size: 12px;
    color: var(--ca-f-danger);
    font-weight: 500;
}

.ca-form input.is-invalid + .error-message,
.ca-form input:invalid:not(:placeholder-shown):not(:focus) + .error-message {
    display: block;
}

/* ========================================
   CATEGORY CARDS
   ======================================== */
.ca-categories-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

.ca-category-card {
    display: block;
    cursor: pointer;
    position: relative;
    transition: var(--ca-f-transition);
}

.ca-category-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.ca-category-card-inner {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 18px;
    background: var(--ca-f-white);
    border: 2px solid var(--ca-f-border);
    border-radius: var(--ca-f-radius-sm);
    transition: var(--ca-f-transition);
    position: relative;
}

.ca-category-card:hover .ca-category-card-inner {
    border-color: var(--ca-f-primary-light);
    background: #f8fcff;
    transform: translateY(-1px);
    box-shadow: var(--ca-f-shadow-sm);
}

.ca-category-card input[type="radio"]:checked + .ca-category-card-inner {
    border-color: var(--ca-f-primary);
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    box-shadow: 0 0 0 3px rgba(0, 115, 170, 0.12);
}

.ca-category-card input[type="radio"]:checked + .ca-category-card-inner .ca-category-check {
    opacity: 1;
    transform: scale(1);
}

.ca-category-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: linear-gradient(135deg, #e0f2fe, #bae6fd);
    color: var(--ca-f-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--ca-f-transition);
}

.ca-category-card input[type="radio"]:checked + .ca-category-card-inner .ca-category-icon {
    background: linear-gradient(135deg, var(--ca-f-primary), var(--ca-f-primary-light));
    color: #fff;
    transform: scale(1.05);
}

.ca-category-info {
    flex: 1;
    min-width: 0;
}

.ca-category-name {
    font-weight: 600;
    font-size: 15px;
    color: var(--ca-f-text);
    line-height: 1.3;
}

.ca-category-seats {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 4px;
    font-size: 12px;
    font-weight: 600;
    color: var(--ca-f-warning);
}

.ca-category-price {
    display: flex;
    align-items: baseline;
    font-weight: 700;
    color: var(--ca-f-primary);
    white-space: nowrap;
}

.ca-price-currency {
    font-size: 14px;
    margin-right: 2px;
    font-weight: 600;
}

.ca-price-value {
    font-size: 22px;
    line-height: 1;
}

.ca-category-check {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--ca-f-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0);
    transition: var(--ca-f-transition);
}

/* Seats warning */
.seats-message {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 14px;
    padding: 10px 14px;
    background: #fffbeb;
    border: 1px solid #fcd34d;
    border-radius: var(--ca-f-radius-sm);
    color: #92400e;
    font-size: 13px;
    font-weight: 500;
}

.seats-message .remaining-seats {
    font-weight: 700;
    color: var(--ca-f-warning);
}

/* ========================================
   SUMMARY SECTION
   ======================================== */
.ca-summary-section {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    margin: 2em -2.5em -2.5em;
    padding: 1.5em 2.5em 2em !important;
    border-radius: 0 0 var(--ca-f-radius) var(--ca-f-radius);
    border-top: 2px solid var(--ca-f-border);
    border-bottom: none !important;
}

.monto-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.2em;
    padding: 0;
}

.ca-summary-label {
    font-size: 13px;
    color: var(--ca-f-text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ca-summary-amount {
    display: flex;
    align-items: baseline;
    gap: 4px;
    font-weight: 700;
    color: var(--ca-f-primary);
    transition: var(--ca-f-transition);
}

.ca-summary-currency {
    font-size: 18px;
    font-weight: 600;
}

.ca-summary-amount > span:not(.ca-summary-currency):not(.ca-summary-mxn) {
    font-size: 32px;
    line-height: 1;
}

.ca-summary-mxn {
    font-size: 12px;
    color: var(--ca-f-text-muted);
    font-weight: 600;
    margin-left: 4px;
}

.ca-summary-amount.updated {
    animation: pulse-amount 0.4s ease;
}

@keyframes pulse-amount {
    0% { transform: scale(1); }
    50% { transform: scale(1.08); color: var(--ca-f-success); }
    100% { transform: scale(1); }
}

/* ========================================
   SUBMIT BUTTON
   ======================================== */
.submit-button {
    width: 100%;
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--ca-f-primary) 0%, var(--ca-f-primary-light) 100%);
    color: #fff;
    border: none;
    border-radius: var(--ca-f-radius-sm);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--ca-f-transition);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 4px 14px rgba(0, 115, 170, 0.3);
    font-family: inherit;
    letter-spacing: 0.3px;
}

.submit-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.25), transparent);
    transition: left 0.6s ease;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 115, 170, 0.4);
}

.submit-button:hover::before {
    left: 100%;
}

.submit-button:active {
    transform: translateY(0);
}

.submit-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* ========================================
   LOADING STATE
   ======================================== */
.ca-form.loading {
    pointer-events: none;
}

.ca-form.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(2px);
    border-radius: var(--ca-f-radius);
    z-index: 10;
}

.ca-form.loading .submit-button::after {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: ca-spin 0.8s linear infinite;
    margin-left: 8px;
}

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

/* ========================================
   FORM MESSAGE (success / error)
   ======================================== */
#form-message {
    max-width: 640px;
    margin: 1em auto 2em;
    padding: 0;
    border-radius: var(--ca-f-radius);
    overflow: hidden;
    animation: ca-fade-slide 0.4s ease;
}

@keyframes ca-fade-slide {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#form-message.success,
#form-message.error {
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
}

#form-message.success {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
    color: #14532d;
    border-left: 4px solid var(--ca-f-success);
}

#form-message.error {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #7f1d1d;
    border-left: 4px solid var(--ca-f-danger);
}

#form-message.success::before {
    content: '✓';
    width: 32px;
    height: 32px;
    background: var(--ca-f-success);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

#form-message.error::before {
    content: '!';
    width: 32px;
    height: 32px;
    background: var(--ca-f-danger);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

/* ========================================
   FORM CLOSED STATE
   ======================================== */
.ca-form-closed {
    max-width: 640px;
    margin: 2em auto;
    padding: 3em 2em;
    background: var(--ca-f-white);
    border-radius: var(--ca-f-radius);
    box-shadow: var(--ca-f-shadow);
    text-align: center;
}

.ca-closed-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 1em;
    color: var(--ca-f-text-muted);
    opacity: 0.5;
}

.ca-form-closed h3 {
    margin: 0 0 8px;
    color: var(--ca-f-text);
    font-size: 20px;
    font-weight: 700;
}

.ca-form-closed p {
    margin: 0;
    color: var(--ca-f-text-muted);
    font-size: 14px;
}

/* ========================================
   DUPLICATE EMAIL STATE
   ======================================== */
.ca-form input.duplicate-email {
    border-color: #fc8181 !important;
    background-color: #fff5f5 !important;
    box-shadow: 0 0 0 3px rgba(252, 129, 129, 0.2);
}

.ca-form input.duplicate-email + .field-icon,
.ca-form .input-container:has(.duplicate-email) .field-icon {
    color: #fc8181;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.ca-form input.shake {
    animation: shake 0.6s cubic-bezier(.36,.07,.19,.97) both;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 640px) {
    .ca-event-header,
    .ca-form {
        margin-left: 10px;
        margin-right: 10px;
        padding: 1.5em;
    }

    .ca-event-header {
        padding: 1.5em;
    }

    .ca-event-title {
        font-size: 22px;
    }

    .ca-summary-section {
        margin-left: -1.5em;
        margin-right: -1.5em;
        padding: 1.2em 1.5em 1.5em !important;
    }

    .ca-category-card-inner {
        padding: 14px;
        gap: 10px;
    }

    .ca-category-icon {
        width: 36px;
        height: 36px;
    }

    .ca-category-name {
        font-size: 14px;
    }

    .ca-price-value {
        font-size: 19px;
    }

    .ca-summary-amount > span:not(.ca-summary-currency):not(.ca-summary-mxn) {
        font-size: 26px;
    }

    .ca-section-header {
        gap: 10px;
    }

    .ca-section-title {
        font-size: 15px;
    }
}

/* ========================================
   ADMIN-ONLY STYLES (preserved)
   ======================================== */
.wp-admin .shortcode-container {
    display: flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 1.5em;
    border-radius: 8px;
    margin: 1.5em 0;
    border: 2px solid #e0e0e0;
    transition: all 0.3s ease;
}

.wp-admin .shortcode-container:hover {
    border-color: #0073aa;
    box-shadow: 0 4px 12px rgba(0, 115, 170, 0.1);
}

.wp-admin .shortcode-container code {
    font-size: 1.1em;
    padding: 0.8em 1.2em;
    background: #fff;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    color: #2c3e50;
    font-family: 'Monaco', 'Consolas', monospace;
}

/* ========================================
   LABEL TEXT PROTECTION (theme override)
   ======================================== */
.ca-form label::before,
.ca-form label::after,
.ca-form label[for]::before,
.ca-form label[for]::after {
    content: none !important;
    display: none !important;
}

.ca-form .label-text {
    display: inline-block !important;
}