/**
 * 3Syxty Studio — Modal & Drawer Components
 *
 * Centered modals, side-sheet drawers, and confirmation dialogs
 * with backdrop blur, elegant animations, and focus trapping.
 */

/* -----------------------------------------------------------------------
   Modal Backdrop
   ----------------------------------------------------------------------- */

.modal-backdrop {
    position: fixed;
    inset: 0;
    background-color: var(--surface-overlay);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    animation: fade-in var(--motion-fast) forwards;
}

.modal-backdrop[data-closing="true"] {
    animation: fade-out var(--motion-fast) forwards;
}

/* -----------------------------------------------------------------------
   Modal Panel
   ----------------------------------------------------------------------- */

.modal {
    position: relative;
    width: 100%;
    max-height: calc(100vh - var(--space-8));
    max-height: calc(100dvh - var(--space-8));
    background-color: var(--surface-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-heavy);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: scale-in var(--motion-normal) forwards;
}

.modal-backdrop[data-closing="true"] .modal {
    animation: scale-out var(--motion-fast) forwards;
}

/* Size variants */
.modal-xs { max-width: 360px; }
.modal-sm { max-width: 440px; }
.modal-md { max-width: 560px; }
.modal-lg { max-width: 720px; }
.modal-xl { max-width: 960px; }
.modal-full { max-width: calc(100vw - var(--space-8)); }

/* -----------------------------------------------------------------------
   Modal Sections
   ----------------------------------------------------------------------- */

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
}

.modal-title {
    font: var(--type-h2);
    color: var(--text-primary);
}

.modal-subtitle {
    font: var(--type-body-sm);
    color: var(--text-muted);
    margin-top: var(--space-1);
}

.modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    color: var(--text-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: background-color var(--motion-instant), color var(--motion-instant);
    flex-shrink: 0;
    margin-left: var(--space-4);
}

.modal-close:hover {
    background-color: var(--accent-primary-subtle);
    color: var(--text-primary);
}

.modal-close:focus-visible {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
}

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

.modal-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-6);
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

.modal-body-flush {
    padding: 0;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--border-subtle);
    flex-shrink: 0;
}

.modal-footer-split {
    justify-content: space-between;
}

/* -----------------------------------------------------------------------
   Confirmation Dialog
   ----------------------------------------------------------------------- */

.modal-confirm .modal-body {
    text-align: center;
    padding: var(--space-8) var(--space-6);
}

.modal-confirm-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    margin: 0 auto var(--space-4);
}

.modal-confirm-icon-danger {
    background-color: var(--error-subtle);
    color: var(--error);
}

.modal-confirm-icon-warning {
    background-color: var(--warning-subtle);
    color: var(--warning);
}

.modal-confirm-icon-success {
    background-color: var(--success-subtle);
    color: var(--success);
}

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

.modal-confirm-icon svg {
    width: 28px;
    height: 28px;
}

.modal-confirm-title {
    font: var(--type-h2);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.modal-confirm-desc {
    font: var(--type-body);
    color: var(--text-secondary);
    max-width: 360px;
    margin: 0 auto;
}

.modal-confirm .modal-footer {
    justify-content: center;
}

/* -----------------------------------------------------------------------
   Drawer (Side Sheet)
   ----------------------------------------------------------------------- */

.drawer-backdrop {
    position: fixed;
    inset: 0;
    background-color: var(--surface-overlay);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: var(--z-modal);
    animation: fade-in var(--motion-fast) forwards;
}

.drawer-backdrop[data-closing="true"] {
    animation: fade-out var(--motion-fast) forwards;
}

.drawer {
    position: fixed;
    top: 0;
    bottom: 0;
    width: 100%;
    max-width: 480px;
    background-color: var(--surface-elevated);
    border-left: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-heavy);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    z-index: calc(var(--z-modal) + 1);
}

/* Right drawer (default) */
.drawer-right {
    right: 0;
    animation: drawer-slide-in-right var(--motion-normal) forwards;
}

.drawer-backdrop[data-closing="true"] .drawer-right {
    animation: drawer-slide-out-right var(--motion-fast) forwards;
}

/* Left drawer */
.drawer-left {
    left: 0;
    border-left: none;
    border-right: 1px solid var(--border-subtle);
    animation: drawer-slide-in-left var(--motion-normal) forwards;
}

.drawer-backdrop[data-closing="true"] .drawer-left {
    animation: drawer-slide-out-left var(--motion-fast) forwards;
}

/* Size variants */
.drawer-sm { max-width: 360px; }
.drawer-md { max-width: 480px; }
.drawer-lg { max-width: 640px; }
.drawer-xl { max-width: 800px; }

/* Drawer sections re-use modal-header, modal-body, modal-footer */

@keyframes drawer-slide-in-right {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

@keyframes drawer-slide-out-right {
    from { transform: translateX(0); }
    to { transform: translateX(100%); }
}

@keyframes drawer-slide-in-left {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

@keyframes drawer-slide-out-left {
    from { transform: translateX(0); }
    to { transform: translateX(-100%); }
}