@import url('../shared/base.css');
@import url('../shared/actions.css');
@import url('../shared/layout.css');
@import url('../shared/editor.css');
@import url('../shared/info-responsive.css');
@import url('../shared/modals.css');

/* ─── App loader ───────────────────────────────────────────── */

.app-loader {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background: var(--surface-color);
    transition: opacity 380ms ease, visibility 380ms ease;
}

.app-loader__dialog {
    width: auto;
    padding: 0;
    background: transparent;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    transform: translateY(0);
    transition: transform 380ms ease;
}

.app-loader__title {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--text-color);
    text-transform: uppercase;
}

.app-loader__spinner {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    border: 2.5px solid rgba(17, 24, 39, 0.14);
    border-top-color: var(--text-color);
    animation: app-loader-spin 0.8s linear infinite;
}

@keyframes app-loader-spin {
    0%   { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 640px) {
    .app-loader__dialog {
        gap: 0.9rem;
    }

    .app-loader__title {
        font-size: 0.95rem;
    }
}

.app-loader--hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.app-loader--hidden .app-loader__dialog { transform: translateY(-8px); }

body.app-loading { overflow: hidden; }

body.app-loading > :not(.app-loader) {
    opacity: 0;
    transform: scale(0.99);
    transition: opacity 420ms ease, transform 440ms ease;
    transform-origin: center 20%;
}

body.app-loaded > :not(.app-loader) {
    opacity: 1;
    transform: none;
}

/* ─── Advanced tab variables ───────────────────────────────── */

#advanced-tab {
    --advanced-layout-sticky-top: 6.5rem;
    --advanced-section-divider: var(--border-soft);
}

#advanced-tab .section { position: relative; }

/* ─── Advanced header ──────────────────────────────────────── */

.advanced-header {
    position: relative;
    z-index: 1;
    padding: 0.35rem 0 0;
    margin: 0 0 0.45rem;
    border-bottom: none;
}

.advanced-header__meta {
    position: sticky;
    top: var(--advanced-layout-sticky-top);
    z-index: 20;
    background: var(--surface-color);
    padding: 0.35rem 0 0.65rem;
    margin: 0;
    border-bottom: 1px solid var(--border);
}

.advanced-header__title-row { align-items: center; }

/* ─── Settings layout ──────────────────────────────────────── */

.advanced-settings-layout {
    align-items: start;
    gap: 2.5rem;
    padding-top: 0.55rem;
}

.advanced-settings-layout .form-column {
    gap: 0;
    min-width: 0;
}

.advanced-settings-layout .form-card {
    background: transparent;
    padding: 0;
    min-height: 0;
}

.advanced-settings-layout .form-card .form-pane {
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 0;
}

.advanced-settings-layout .form-card .form-pane.active {
    display: block;
    overflow: visible;
    max-height: none;
}

.advanced-settings-layout .json-editor-column {
    align-items: stretch;
    gap: 0;
}

.advanced-settings-layout .json-editor-card {
    background: transparent;
    padding: 0;
    margin-top: 0;
    border: none;
    border-top: none;
    border-radius: 0;
    position: static;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    z-index: 1;
}

.advanced-settings-layout .json-editor-card h3 {
    margin: 0 0 1rem;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text-color);
    text-transform: none;
}

/* ─── Credentials column ───────────────────────────────────── */

.advanced-settings-layout .credentials-column .column-card {
    position: sticky;
    top: var(--advanced-layout-sticky-top);
    padding: 0;
    background: transparent;
    border-radius: 0;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    max-height: calc(100vh - var(--advanced-layout-sticky-top) - 3rem);
    overflow: visible;
    z-index: 2;
}

.advanced-settings-layout .credentials-column .credentials-panel {
    flex: 1 1 auto;
    overflow-y: auto;
    padding: 0.15rem 0 0;
    background: transparent;
    border: none;
    border-radius: 0;
    min-height: 0;
    position: relative;
    z-index: 2;
    scroll-padding-top: 0.6rem;
}

.advanced-settings-layout .credentials-column #credentials-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding-right: 0.35rem;
}

.advanced-settings-layout .credentials-column #credentials-list p { margin: 0; }
.advanced-settings-layout .credentials-column #credentials-list > :last-child { margin-bottom: 0; }
.advanced-settings-layout .credentials-column .credential-item { margin: 0; }

.advanced-settings-layout .credentials-column .credentials-panel::-webkit-scrollbar { width: 4px; }
.advanced-settings-layout .credentials-column .credentials-panel::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: var(--radius-pill);
}

.advanced-settings-layout .form-card .form-pane.active::-webkit-scrollbar { width: 4px; }
.advanced-settings-layout .form-card .form-pane.active::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: var(--radius-pill);
}

@media (min-width: 993px) {
    .advanced-settings-layout {
        grid-template-columns: minmax(0, 13fr) minmax(280px, 7fr);
    }

    .advanced-settings-layout .form-card .form-pane.active {
        padding-right: 0;
        padding-bottom: 0;
    }
}

/* ─── Settings nav ─────────────────────────────────────────── */

.settings-nav-column { display: flex; }

.settings-nav {
    position: sticky;
    top: var(--advanced-layout-sticky-top);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 1.5rem 1.75rem 1.5rem 0;
    align-self: start;
}

.settings-nav__item {
    appearance: none;
    border: none;
    background: transparent;
    text-align: left;
    padding: 0.5rem 0;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--muted-text);
    cursor: pointer;
    transition: color var(--transition-base);
    font-family: var(--font-sans);
}

.settings-nav__item:hover,
.settings-nav__item:focus-visible { color: var(--text-color); outline: none; }

.settings-nav__item--active { color: var(--text-color); font-weight: 600; }

.settings-nav__separator {
    border: none;
    height: 1px;
    background: var(--border);
    margin: 0.15rem 0;
    width: 100%;
}

/* ─── Settings section sentinels ───────────────────────────── */

.settings-section-sentinel {
    height: 1px;
    margin: 0;
    scroll-margin-top: calc(var(--advanced-layout-sticky-top) + 1.75rem);
}

.settings-section-sentinel + .static-section,
.settings-section-sentinel + .expandable-section,
.settings-section-sentinel + .json-editor-card {
    padding-top: 1.75rem;
    margin-top: 1.75rem;
    border-top: 1px solid var(--advanced-section-divider);
}

.settings-section-sentinel + .json-editor-card {
    padding-top: 2.25rem;
    margin-top: 2.25rem;
    border-top: none;
}

.settings-section-sentinel--first + .static-section,
.settings-section-sentinel--first + .expandable-section,
.settings-section-sentinel--first + .json-editor-card {
    border-top: none;
    padding-top: 0;
    margin-top: 0;
}

/* ─── Advanced section overrides ───────────────────────────── */

.advanced-settings-layout .static-section,
.advanced-settings-layout .expandable-section { margin: 0; }

.advanced-settings-layout .section-header {
    cursor: default;
    padding: 0;
    background: transparent;
    border: none;
    color: var(--text-color);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    pointer-events: none;
}

.advanced-settings-layout .section-header span { display: inline-block; }

.advanced-settings-layout .section-content {
    display: block;
    padding: 0.75rem 0 0;
    border: none;
    background: transparent;
}

.advanced-settings-layout .section-content.expanded { animation: none; }
.advanced-settings-layout .expand-icon { display: none; }

/* ─── Responsive ───────────────────────────────────────────── */

@media (max-width: 992px) {
    .advanced-settings-layout {
        grid-template-columns: minmax(0, 1fr);
        padding-top: 1.5rem;
        gap: 2rem;
    }

    #advanced-tab { --advanced-layout-sticky-top: 5.5rem; }

    .advanced-header {
        position: static;
        border-bottom: none;
        padding: 1.25rem 0 1.5rem;
        margin-bottom: 1.5rem;
    }

    .advanced-header__meta {
        position: static;
        border-bottom: none;
        padding: 0;
    }

    .advanced-settings-layout .form-card .form-pane.active {
        max-height: none;
        overflow: visible;
        padding: 1.5rem;
        background: var(--surface-color);
        border-radius: var(--radius-xl);
        border: 1px solid var(--border);
    }

    .advanced-settings-layout .credentials-column .column-card {
        position: static;
        max-height: none;
        height: auto;
        padding: 1.25rem;
        background: var(--surface-color);
        border-radius: var(--radius-xl);
        border: 1px solid var(--border);
        gap: 1.25rem;
    }

    .advanced-settings-layout .credentials-column .credentials-panel {
        flex: none;
        overflow: visible;
        padding: 0;
    }

    .advanced-settings-layout .json-editor-card {
        padding: 1.25rem 0 0;
        background: transparent;
        border-radius: 0;
        border: none;
    }
}