.novacore-modal {
    position: fixed;
    inset: 0;
    z-index: calc(var(--z-modal) + 1);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
    visibility: hidden;
    opacity: 0;
    transition:
        opacity 300ms ease,
        visibility 300ms ease;
}

.novacore-modal[hidden] {
    display: none;
}

/* Backdrop */

.novacore-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.82);
    backdrop-filter: blur(6px);
}

/* Dialog */

.novacore-modal__dialog {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 32rem;
    max-height: calc(100vh - 3rem);
    overflow-y: auto;
    background: var(--color-surface-secondary);
    border: var(--border-width-thin) solid var(--color-border-default);
    opacity: 0;
    transform: translateY(12px) scale(0.985);
    transition:
        opacity 350ms ease,
        transform 450ms cubic-bezier(0.22, 1, 0.36, 1);
}

.novacore-modal.is-visible {
    visibility: visible;
    opacity: 1;
}

.novacore-modal.is-visible .novacore-modal__dialog {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.novacore-modal__dialog:focus {
    outline: none;
}

/* Header */

.novacore-modal__header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-6);
    border-bottom: var(--border-width-thin) solid var(--color-border-default);
}

.novacore-modal__icon {
    display: flex;
    flex: 0 0 2.75rem;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    border: var(--border-width-thin) solid var(--color-border-strong);
    color: var(--color-text-primary);
    font-family: var(--font-mono);
    font-size: var(--font-size-lg);
    line-height: 1;
}

.novacore-modal__heading {
    flex: 1;
    min-width: 0;
    padding-top: var(--space-1);
}

.novacore-modal__eyebrow {
    margin-bottom: var(--space-2);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-size: var(--font-size-label);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-snug);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.novacore-modal__title {
    margin: 0;
    color: var(--color-text-primary);
    font-family: var(--font-heading);
    font-size: var(--font-size-h4);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    overflow-wrap: anywhere;
}

.novacore-modal__close {
    display: flex;
    flex: 0 0 2rem;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    margin-left: auto;
    padding: 0;
    background: transparent;
    border: var(--border-width-thin) solid transparent;
    color: var(--color-text-muted);
    font-family: var(--font-body);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    transition:
        color var(--transition-normal),
        border-color var(--transition-normal);
}

.novacore-modal__close:hover {
    border-color: var(--color-border-strong);
    color: var(--color-text-primary);
}

.novacore-modal__close:focus-visible,
.novacore-modal__action:focus-visible {
    outline: 2px solid var(--color-focus);
    outline-offset: 4px;
}

/* Body */

.novacore-modal__body {
    padding: var(--space-6);
}

.novacore-modal__message {
    margin: 0;
    color: var(--color-text-secondary);
    font-family: var(--font-body);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-relaxed);
    overflow-wrap: anywhere;
}

.novacore-modal__errors {
    margin-top: var(--space-6);
    padding: var(--space-4);
    background: var(--color-surface-tertiary);
    border-left: 2px solid var(--color-border-strong);
}

.novacore-modal__errors[hidden] {
    display: none;
}

.novacore-modal__errors-title {
    margin: 0 0 var(--space-3);
    color: var(--color-text-primary);
    font-family: var(--font-mono);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-snug);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.novacore-modal__errors-list {
    display: grid;
    gap: var(--space-3);
    margin: 0;
    padding-left: var(--space-5);
    color: var(--color-text-secondary);
    font-family: var(--font-body);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-normal);
}

.novacore-modal__errors-item {
    padding-left: var(--space-1);
    overflow-wrap: anywhere;
}

.novacore-modal__errors-item::marker {
    color: var(--color-text-muted);
}

/* States */

.novacore-modal[data-type="error"] .novacore-modal__icon,
.novacore-modal[data-type="warning"] .novacore-modal__icon {
    border-color: var(--color-border-strong);
}

.novacore-modal[data-type="success"] .novacore-modal__icon {
    border-color: var(--color-text-secondary);
}

.novacore-modal[data-type="info"] .novacore-modal__icon {
    border-color: var(--color-border-default);
}

/* Footer */

.novacore-modal__footer {
    display: flex;
    justify-content: flex-end;
    padding: var(--space-5) var(--space-6);
    border-top: var(--border-width-thin) solid var(--color-border-default);
}

.novacore-modal__action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.75rem;
    padding: var(--space-3) var(--space-5);
    background: var(--color-text-primary);
    border: var(--border-width-thin) solid var(--color-text-primary);
    color: var(--color-text-inverse);
    font-family: var(--font-mono);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-snug);
    letter-spacing: 0.06em;
    text-align: center;
    text-transform: uppercase;
    cursor: pointer;
    transition:
        background-color var(--transition-normal),
        border-color var(--transition-normal),
        color var(--transition-normal);
}

.novacore-modal__action:hover {
    background: transparent;
    border-color: var(--color-border-strong);
    color: var(--color-text-primary);
}

/* Mobile */

@media (max-width: 767px) {
    .novacore-modal {
        align-items: center;
        padding: var(--space-4);
    }

    .novacore-modal__dialog {
        max-width: 100%;
        max-height: calc(100vh - 2rem);
    }

    .novacore-modal__header {
        gap: var(--space-3);
        padding: var(--space-5);
    }

    .novacore-modal__icon {
        flex-basis: 2.25rem;
        width: 2.25rem;
        height: 2.25rem;
    }

    .novacore-modal__body {
        padding: var(--space-5);
    }

    .novacore-modal__footer {
        padding: var(--space-4) var(--space-5);
    }

    .novacore-modal__action {
        width: 100%;
    }
}

/* Reduced motion */

@media (prefers-reduced-motion: reduce) {
    .novacore-modal,
    .novacore-modal__dialog,
    .novacore-modal__close,
    .novacore-modal__action {
        transition: none;
    }

    .novacore-modal__dialog {
        transform: none;
    }
}