/* KRS Public Reservation Frontend Styles - Oversized & Soft UI Polished */

:root {
    --kuad-krs-primary: #3b82f6;
    --kuad-krs-primary-hover: #2563eb;
    --kuad-krs-bg: #ffffff;
    --kuad-krs-surface: #f8fafc;
    --kuad-krs-border: #e2e8f0;
    --kuad-krs-text: #0f172a;
    --kuad-krs-text-light: #64748b;
    --kuad-krs-shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.08), 0 1px 3px rgba(15, 23, 42, 0.02);
    --kuad-krs-shadow-lg: 0 20px 40px -15px rgba(15, 23, 42, 0.12);
    --kuad-krs-success: #10b981;
    --kuad-krs-danger: #ef4444;
}

.kuad-krs-booking-widget {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--kuad-krs-text);
    background: var(--kuad-krs-bg);
    border: 1px solid rgba(15, 23, 42, 0.05);
    border-radius: 20px;
    padding: 32px;
    max-width: 650px;
    margin: 30px auto;
    box-shadow: var(--kuad-krs-shadow-lg);
    box-sizing: border-box;
}

.kuad-krs-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--kuad-krs-text) !important;
    margin: 0 0 10px 0;
}

.kuad-krs-subtitle {
    font-size: 16px;
    color: var(--kuad-krs-text-light);
    margin: 0 0 24px 0;
    line-height: 1.5;
}

/* Wizard progress indicator bar */
.krs-public-progress-bar {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 28px;
    border-bottom: 1px solid var(--kuad-krs-border);
    padding-bottom: 18px;
}

.krs-progress-step {
    font-size: 13px;
    font-weight: 700;
    color: var(--kuad-krs-text-light);
    background: #f1f5f9;
    padding: 8px 16px;
    border-radius: 24px;
    flex: 1;
    text-align: center;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.krs-progress-step.active {
    background: rgba(59, 130, 246, 0.1);
    color: var(--kuad-krs-primary);
}

.krs-wizard-pane {
    display: none;
    animation: krsFadeIn 0.3s ease;
}

.krs-wizard-pane.active {
    display: block;
}

@keyframes krsFadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Time Slotted Grid */
.kuad-krs-slots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(116px, 1fr));
    gap: 12px;
    margin-top: 20px;
}

.kuad-krs-slot-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    /* Strict 48px target */
    border: 1px solid var(--kuad-krs-border);
    background: var(--kuad-krs-surface);
    border-radius: 12px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    color: var(--kuad-krs-text);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.kuad-krs-slot-btn:hover:not(:disabled) {
    border-color: var(--kuad-krs-primary);
    color: var(--kuad-krs-primary);
    background: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.08);
}

.kuad-krs-slot-btn.selected {
    background: var(--kuad-krs-primary);
    color: #fff;
    border-color: var(--kuad-krs-primary);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

.kuad-krs-slot-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
    background: #e2e8f0;
    border-color: #cbd5e1;
    color: #94a3b8;
}

/* Seating / Spatial Layout Grid */
.kuad-krs-slots-container {
    width: 100%;
    margin-top: 16px;
}

.kuad-krs-spatial-layout-grid {
    display: grid;
    grid-template-columns: repeat(8, 48px);
    gap: 12px;
    margin: 25px auto;
    justify-content: center;
    width: max-content;
}

.kuad-krs-seat {
    width: 48px;
    height: 48px;
    /* Strict 48x48px touch area */
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--kuad-krs-border);
    border-radius: 10px;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    background-color: var(--kuad-krs-surface);
    transition: all 0.2s ease;
    box-sizing: border-box;
}

.kuad-krs-seat:hover:not(.occupied) {
    background-color: #ffffff;
    border-color: var(--kuad-krs-primary);
    color: var(--kuad-krs-primary);
    transform: scale(1.05);
    box-shadow: 0 4px 10px rgba(59, 130, 246, 0.08);
}

.kuad-krs-seat.selected {
    background-color: var(--kuad-krs-primary);
    border-color: var(--kuad-krs-primary);
    color: #fff;
    transform: scale(1.05);
    box-shadow: 0 4px 10px rgba(59, 130, 246, 0.2);
}

.kuad-krs-seat.occupied {
    background-color: #fee2e2;
    border-color: #fca5a5;
    color: #991b1b;
    cursor: not-allowed;
}

/* Forms and Inputs */
.kuad-krs-input-group {
    margin-bottom: 24px;
    text-align: left;
}

.kuad-krs-input-group label {
    display: block;
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 8px;
    color: var(--kuad-krs-text);
}

.help-text {
    font-size: 13px;
    color: var(--kuad-krs-text-light);
    margin-top: 6px;
    line-height: 1.4;
    display: block;
}

/* Input wrappers & validation overlay tags */
.krs-input-wrapper {
    position: relative;
    width: 100%;
}

.kuad-krs-input-group input[type="text"],
.kuad-krs-input-group input[type="number"],
.kuad-krs-input-group input[type="email"],
.kuad-krs-input-group select {
    width: 100%;
    height: 48px;
    /* strictly 48px touch height */
    padding: 12px 16px;
    border: 1px solid var(--kuad-krs-border);
    border-radius: 12px;
    font-size: 16px;
    /* minimum 16px for iOS accessibility */
    background-color: var(--kuad-krs-surface);
    color: var(--kuad-krs-text);
    box-sizing: border-box;
    transition: all 0.2s ease;
}

.kuad-krs-input-group input:focus,
.kuad-krs-input-group select:focus {
    border-color: var(--kuad-krs-primary);
    outline: none;
    background-color: #ffffff;
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

/* validation checker check marks */
.is-valid input,
.is-valid select {
    border-color: var(--kuad-krs-success) !important;
    background-color: rgba(16, 185, 129, 0.01) !important;
}

.is-valid .krs-validation-icon {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    pointer-events: none;
}

.is-valid .krs-validation-icon::after {
    content: "✓";
    color: var(--kuad-krs-success);
    font-weight: 800;
    font-size: 18px;
}

.is-invalid input,
.is-invalid select {
    border-color: var(--kuad-krs-danger) !important;
    background-color: rgba(239, 68, 68, 0.01) !important;
}

.is-invalid .krs-validation-icon {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    pointer-events: none;
}

.is-invalid .krs-validation-icon::after {
    content: "⚠";
    color: var(--kuad-krs-danger);
    font-weight: 800;
    font-size: 18px;
}

.krs-error-msg {
    color: var(--kuad-krs-danger);
    font-size: 13px;
    font-weight: 600;
    margin-top: 6px;
    display: block;
    animation: krsFadeIn 0.2s ease;
}

/* Submit and Wizard Navigation Buttons */
.kuad-krs-submit-btn,
.krs-btn-next,
.krs-btn-prev {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 52px;
    /* Oversized action targets */
    background: var(--kuad-krs-primary);
    color: #fff;
    border: none;
    border-radius: 14px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    box-sizing: border-box;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
}

.kuad-krs-submit-btn:hover:not(:disabled),
.krs-btn-next:hover:not(:disabled) {
    background-color: var(--kuad-krs-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.25);
}

.krs-btn-prev {
    background: #ffffff;
    border: 1px solid var(--kuad-krs-border);
    color: var(--kuad-krs-text);
    box-shadow: none;
}

.krs-btn-prev:hover {
    background-color: var(--kuad-krs-surface);
    border-color: #cbd5e1;
    transform: translateY(-1px);
}

.kuad-krs-submit-btn:disabled,
.krs-btn-next:disabled {
    background-color: #cbd5e1;
    cursor: not-allowed;
    color: var(--kuad-krs-text-light);
    box-shadow: none;
}

/* Summary screen boxes styling */
.krs-summary-box {
    background: var(--kuad-krs-surface);
    border: 1px solid var(--kuad-krs-border);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
}

.krs-summary-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--kuad-krs-border);
    font-size: 15px;
}

.krs-summary-item:last-child {
    border-bottom: none;
}

.krs-summary-label {
    font-weight: 700;
    color: var(--kuad-krs-text-light);
}

.krs-summary-value {
    font-weight: 700;
    color: var(--kuad-krs-text);
    text-align: right;
}

/* Spinner indicator animations */
.kuad-krs-loading-spinner {
    padding: 24px 0;
    text-align: center;
    color: var(--kuad-krs-text-light);
    font-size: 15px;
    font-weight: 600;
}

.kuad-krs-loading-spinner::before {
    content: "";
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--kuad-krs-border);
    border-top-color: var(--kuad-krs-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 10px;
    vertical-align: middle;
}

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

/* Wizard Multi-Step Form action wrappers */
.kuad-krs-actions-wrapper {
    margin-top: 28px;
    display: flex;
    gap: 12px;
}

.kuad-krs-actions-wrapper button {
    flex: 1;
}

/* Mobile responsive sticky layout adjustments */
@media (max-width: 640px) {
    .kuad-krs-booking-widget {
        padding: 20px;
        border-radius: 16px;
        margin: 10px;
        padding-bottom: 100px;
        /* buffer space so sticky bottom button does not overlap cards */
    }

    .kuad-krs-title {
        font-size: 20px;
    }

    .krs-progress-step {
        font-size: 11px;
        padding: 6px 12px;
    }

    .kuad-krs-slots-grid {
        grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
        gap: 10px;
    }

    .kuad-krs-slot-btn {
        height: 48px;
        font-size: 14px;
    }

    /* Sticky Bottom Actions overlay for Mobile thumbs comfort */
    .kuad-krs-actions-wrapper {
        position: fixed !important;
        bottom: 0 !important;
        left: 0 !important;
        right: 0 !important;
        background: rgba(255, 255, 255, 0.9) !important;
        backdrop-filter: blur(16px) !important;
        -webkit-backdrop-filter: blur(16px) !important;
        padding: 16px 20px !important;
        border-top: 1px solid rgba(15, 23, 42, 0.05) !important;
        box-shadow: 0 -8px 30px rgba(15, 23, 42, 0.08) !important;
        z-index: 999999 !important;
        margin: 0 !important;
    }
}