/* KRS Public Reservation Frontend Styles */

:root {
    --kuad-krs-primary: #3b82f6;
    --kuad-krs-primary-hover: #2563eb;
    --kuad-krs-bg: #ffffff;
    --kuad-krs-surface: #f9fafb;
    --kuad-krs-border: #e5e7eb;
    --kuad-krs-text: #1f2937;
    --kuad-krs-text-light: #6b7280;
    --kuad-krs-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
    --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 var(--kuad-krs-border);
    border-radius: 16px;
    padding: 25px;
    max-width: 650px;
    margin: 20px auto;
    box-shadow: var(--kuad-krs-shadow);
}

.kuad-krs-title {
    font-size: 22px;
    font-weight: 700;
    margin: 0 0 8px 0;
}

.kuad-krs-subtitle {
    font-size: 14px;
    color: var(--kuad-krs-text-light);
    margin: 0 0 25px 0;
    line-height: 1.5;
}

/* Time Slotted Grid */
.kuad-krs-slots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 12px;
    margin-top: 20px;
}

.kuad-krs-slot-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 48px; /* minimum 44px for touch targets */
    border: 1px solid var(--kuad-krs-border);
    background: var(--kuad-krs-surface);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    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);
    transform: translateY(-1px);
}

.kuad-krs-slot-btn.selected {
    background: var(--kuad-krs-primary);
    color: #fff;
    border-color: var(--kuad-krs-primary);
}

.kuad-krs-slot-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background: var(--kuad-krs-border);
}

/* Seating / Spatial Layout */
.kuad-krs-slots-container {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.kuad-krs-spatial-layout-grid {
    display: grid;
    grid-template-columns: repeat(10, 44px);
    gap: 10px;
    margin: 25px auto;
    justify-content: start;
    width: max-content;
}

.kuad-krs-seat {
    width: 44px;
    height: 44px; /* Strict 44px touch-targets */
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--kuad-krs-border);
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    background-color: var(--kuad-krs-surface);
    transition: all 0.15s ease;
}

.kuad-krs-seat:hover:not(.occupied) {
    background-color: #ebf5ff;
    border-color: var(--kuad-krs-primary);
    color: var(--kuad-krs-primary);
}

.kuad-krs-seat.selected {
    background-color: var(--kuad-krs-primary);
    border-color: var(--kuad-krs-primary);
    color: #fff;
}

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

/* Forms and Inputs */
.kuad-krs-input-group {
    margin-bottom: 20px;
    text-align: left;
}

.kuad-krs-input-group label {
    display: block;
    font-weight: 600;
    font-size: 13px;
    margin-bottom: 6px;
    color: var(--kuad-krs-text);
}

.kuad-krs-input-group input[type="text"],
.kuad-krs-input-group input[type="email"],
.kuad-krs-input-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--kuad-krs-border);
    border-radius: 8px;
    font-size: 14px;
    background-color: var(--kuad-krs-surface);
    box-sizing: border-box;
}

.kuad-krs-input-group input:focus,
.kuad-krs-input-group select:focus {
    border-color: var(--kuad-krs-primary);
    outline: none;
    background-color: #fff;
}

/* Submit and Navigation Button */
.kuad-krs-submit-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 52px;
    background: var(--kuad-krs-primary);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.kuad-krs-submit-btn:hover {
    background-color: var(--kuad-krs-primary-hover);
}

.kuad-krs-submit-btn:disabled {
    background-color: var(--kuad-krs-border);
    cursor: not-allowed;
    color: var(--kuad-krs-text-light);
}

/* Loader micro-animations */
.kuad-krs-loading-spinner {
    padding: 20px 0;
    text-align: center;
    color: var(--kuad-krs-text-light);
    font-size: 14px;
}

.kuad-krs-loading-spinner::before {
    content: "";
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid var(--kuad-krs-border);
    border-top-color: var(--kuad-krs-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 8px;
    vertical-align: middle;
}

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

/* Tablet & Mobile Media Queries */
@media (max-width: 640px) {
    .kuad-krs-booking-widget {
        padding: 15px;
        border-radius: 12px;
        margin: 10px;
    }
    .kuad-krs-title {
        font-size: 18px;
    }
    .kuad-krs-slots-grid {
        grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
        gap: 8px;
    }
    .kuad-krs-slot-btn {
        height: 44px; /* Maintain touch-target minimum */
        font-size: 13px;
    }
    .kuad-krs-submit-btn {
        height: 48px;
        font-size: 15px;
    }
}