/* =============================================
   Modals & Bottom Sheets
   ============================================= */

.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active,
.modal-overlay.show {
    display: flex;
    opacity: 1;
}

/* Base Modal Container */
.modal-container {
    background: var(--bg-white);
    border-radius: var(--radius);
    width: 100%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-md);
    position: relative;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-container,
.modal-overlay.show .modal-container {
    transform: translateY(0);
}

.modal-header {
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.modal-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 0;
}

.btn-close {
    background: transparent;
    border: none;
    font-size: 1.5rem;
    line-height: 1;
    color: var(--text-muted);
    cursor: pointer;
    min-width: var(--touch-min);
    min-height: var(--touch-min);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-body {
    padding: var(--space-lg);
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-md);
}

/* Bottom Sheet (Mobile) */
@media (max-width: 767px) {
    .modal-overlay {
        align-items: flex-end;
    }
    
    .modal-container {
        border-radius: var(--radius) var(--radius) 0 0;
        max-height: 85vh;
        transform: translateY(100%);
        padding-top: var(--space-sm);
    }
    
    .modal-overlay.active .modal-container,
    .modal-overlay.show .modal-container {
        transform: translateY(0);
    }
    
    /* Drag Handle indicator */
    .modal-container::before {
        content: '';
        position: absolute;
        top: 8px;
        left: 50%;
        transform: translateX(-50%);
        width: 40px;
        height: 6px;
        background: var(--border);
        border-radius: 3px;
    }
}

/* Centered Modal (Tablet+) */
@media (min-width: 768px) {
    .modal-container {
        max-width: 600px;
        max-height: 80vh;
    }
    
    .modal-lg .modal-container {
        max-width: 900px;
    }
}