/* ========================================
   Unified Modal Components
   ======================================== */

/* === Base Modal Overlay === */
.esm-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.esm-modal-overlay.visible {
    opacity: 1;
    visibility: visible;
}

/* === Base Modal Content === */
.esm-modal {
    background: var(--bg-panel);
    border: 1px solid var(--border-divider);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    max-width: 420px;
    width: 90%;
    position: relative;
    transform: scale(0.95);
    transition: transform var(--transition-fast);
}

.esm-modal-overlay.visible .esm-modal {
    transform: scale(1);
}

/* === Modal Close Button === */
.esm-modal-close {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--text-subtle);
    cursor: pointer;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.esm-modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-high);
}

.esm-modal-close svg {
    width: 18px;
    height: 18px;
}

/* === Modal Header === */
.esm-modal-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-lg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.esm-modal-icon svg {
    width: 32px;
    height: 32px;
}

.esm-modal-icon.error {
    background: rgba(239, 68, 68, 0.15);
    color: var(--error);
}

.esm-modal-icon.warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.esm-modal-icon.success {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
}

.esm-modal-icon.info {
    background: var(--primary-subtle);
    color: var(--primary);
}

.esm-modal-title {
    font-size: 20px;
    font-weight: var(--font-weight-semibold);
    color: var(--text-high);
    text-align: center;
    margin-bottom: var(--space-md);
}

.esm-modal-message {
    font-size: 14px;
    color: var(--text-subtle);
    text-align: center;
    line-height: 1.5;
    margin-bottom: var(--space-sm);
}

/* === Modal Detail Box === */
.esm-modal-detail {
    font-size: 13px;
    color: var(--error);
    margin-bottom: var(--space-xl);
    padding: var(--space-md);
    background: rgba(239, 68, 68, 0.1);
    border-radius: var(--radius-md);
    text-align: center;
}

/* === Modal Tip (inside detail box) === */
.esm-modal-tip {
    margin-top: var(--space-sm);
    font-size: 12px;
    color: var(--text-subtle);
}

/* === Modal Actions === */
.esm-modal-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
}

.esm-modal-btn {
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.esm-modal-btn.primary {
    background: var(--primary);
    color: var(--bg-app);
}

.esm-modal-btn.primary:hover {
    background: var(--primary-light);
}

.esm-modal-btn.secondary {
    background: transparent;
    color: var(--text-subtle);
    border: 1px solid var(--border-divider);
}

.esm-modal-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* Focus states for accessibility */
.esm-modal-close:focus-visible,
.esm-modal-btn:focus-visible {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .esm-modal-overlay,
    .esm-modal,
    .esm-modal-close,
    .esm-modal-btn {
        transition: none;
    }
}

/* Mobile: 640px and below */
@media (max-width: 640px) {
    .esm-modal {
        padding: var(--space-xl) var(--space-lg);
        margin: var(--space-lg);
    }

    .esm-modal-close {
        width: 44px;
        height: 44px;
        top: var(--space-md);
        right: var(--space-md);
    }

    .esm-modal-btn {
        min-height: 44px;
        padding: var(--space-md) var(--space-lg);
    }
}

/* Mobile: 480px and below */
@media (max-width: 480px) {
    .esm-modal {
        padding: var(--space-xl) var(--space-md);
        margin: var(--space-md);
        border-radius: var(--radius-lg);
    }

    .esm-modal-actions {
        flex-direction: column;
    }

    .esm-modal-btn {
        width: 100%;
    }
}