/* ============================================================
   LearnCore Vault - UI styles
   Uses CSS vars from learncore-guides-hub (always loaded first)
   ============================================================ */

.lcv-app {
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
	color: var(--lcg-text);
	display: flex;
	flex-direction: column;
	min-height: 70vh;
	position: relative;
}

/* Top bar */
.lcv-topbar {
	padding: 1rem 0 0.75rem;
	border-bottom: 1px solid var(--lcg-border);
	margin-bottom: 0;
}

.lcv-search-input {
	width: 100%;
	max-width: 480px;
	padding: 0.6rem 1rem;
	border: 1px solid var(--lcg-border);
	border-radius: 8px;
	font-size: 0.9375rem;
	color: var(--lcg-text);
	outline: none;
	transition: border-color 0.15s;
}

.lcv-search-input:focus { border-color: var(--lcg-blue); }

/* Body: sidebar + panel */
.lcv-body {
	display: flex;
	gap: 0;
	flex: 1;
	min-height: 0;
}

/* Sidebar */
.lcv-sidebar {
	width: 240px;
	flex-shrink: 0;
	border-right: 1px solid var(--lcg-border);
	padding: 1rem 0.75rem 1rem 0;
	overflow-y: auto;
}

.lcv-tree-node { list-style: none; padding: 0; margin: 0; }

.lcv-tree-item {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 0;
	margin-bottom: 0.375rem;
}

.lcv-tree-toggle {
	background: #fff;
	border: 1px solid #e5e7eb;
	border-radius: 8px;
	box-shadow: 0 1px 2px rgba(26,34,51,.04);
	cursor: pointer;
	padding: 0.75rem 1rem;
	font-size: 1rem;
	color: var(--lcg-text, #1f2937);
	flex: 1;
	min-width: 0;
	text-align: left;
	display: flex;
	align-items: center;
	gap: 0.5rem;
	outline: none;
	transition: background 0.12s, border-color 0.12s, box-shadow 0.12s;
}

.lcv-tree-toggle:hover { background: #f9fafb; border-color: #d1d5db; box-shadow: 0 2px 6px rgba(26,34,51,.08); }
.lcv-tree-toggle.active { background: var(--lcg-blue, #2563eb); color: #fff; font-weight: 600; border-color: var(--lcg-blue, #2563eb); box-shadow: none; }
.lcv-tree-toggle .lcv-caret { display: inline-block; transition: transform 0.15s; flex-shrink: 0; }
.lcv-tree-toggle.open .lcv-caret { transform: rotate(90deg); }

.lcv-tree-item > .lcv-tree-children { flex-basis: 100%; }

.lcv-tree-delete {
	flex-shrink: 0;
	background: none;
	border: 1px solid transparent;
	cursor: pointer;
	color: #9ca3af;
	font-size: 1.125rem;
	line-height: 1;
	padding: 0.75rem 0.6rem;
	border-radius: 0 8px 8px 0;
	margin-left: -1px;
	opacity: 0;
	transition: opacity 0.1s, color 0.1s, background 0.1s;
	outline: none;
}
.lcv-tree-item:hover > .lcv-tree-delete { opacity: 1; }
.lcv-tree-delete:hover { color: #dc2626; background: #fee2e2; border-color: #fecaca; }

.lcv-tree-children { padding-left: 1.25rem; margin-top: -0.125rem; }
.lcv-tree-children.hidden { display: none; }

/* Main panel */
.lcv-panel {
	flex: 1;
	padding: 1.25rem 0 1.25rem 1.25rem;
	overflow-y: auto;
}

.lcv-panel-empty {
	color: var(--lcg-muted);
	font-style: italic;
	margin-top: 2rem;
}

.lcv-breadcrumb {
	font-size: 0.8125rem;
	color: var(--lcg-muted);
	margin-bottom: 1rem;
}

.lcv-breadcrumb span + span::before { content: " / "; }

/* Resource cards */
.lcv-cards {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
	gap: 1rem;
}

.lcv-card {
	background: var(--lcg-card);
	border: 1px solid var(--lcg-border);
	border-radius: 10px;
	padding: 1.1rem 1.25rem;
	display: flex;
	flex-direction: column;
	gap: 0.5rem;
	transition: box-shadow 0.15s;
}

.lcv-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,.08); }

.lcv-card-header { display: flex; align-items: flex-start; gap: 0.6rem; }

.lcv-badge {
	font-size: 0.6875rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.04em;
	padding: 0.2rem 0.5rem;
	border-radius: 4px;
	flex-shrink: 0;
}

.lcv-badge-pdf  { background: #fee2e2; color: #b91c1c; }
.lcv-badge-img  { background: #dbeafe; color: #1d4ed8; }
.lcv-badge-pending { background: #fef9c3; color: #92400e; }

.lcv-card-title {
	font-size: 0.9375rem;
	font-weight: 700;
	color: var(--lcg-navy);
	margin: 0;
	line-height: 1.35;
}

.lcv-card-desc {
	font-size: 0.8125rem;
	color: var(--lcg-muted);
	margin: 0;
	line-height: 1.55;
}

.lcv-card-meta {
	font-size: 0.75rem;
	color: var(--lcg-muted);
}

.lcv-card-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.25rem; }

.lcv-btn {
	font-size: 0.8125rem;
	font-weight: 600;
	padding: 0.4rem 0.9rem;
	border-radius: 6px;
	border: none;
	cursor: pointer;
	text-decoration: none;
	display: inline-block;
}

.lcv-btn-primary { background: var(--lcg-blue, #2563eb); color: #fff; }
.lcv-btn-primary:hover { background: #1d4ed8; color: #fff; }
.lcv-btn-outline { background: transparent; color: var(--lcg-blue, #2563eb); border: 1px solid var(--lcg-blue, #2563eb); }
.lcv-btn-outline:hover { background: var(--lcg-bg, #f9fafb); }
.lcv-btn-danger  { background: transparent; color: #b91c1c; border: 1px solid #b91c1c; }
.lcv-btn-danger:hover  { background: #fee2e2; }

/* Upload FAB */
.lcv-upload-fab {
	position: fixed;
	bottom: 2rem;
	right: 2rem;
	background: var(--lcg-blue, #2563eb);
	color: #fff;
	border: none;
	border-radius: 999px;
	padding: 0.75rem 1.5rem;
	font-size: 0.9375rem;
	font-weight: 700;
	cursor: pointer;
	box-shadow: 0 4px 16px rgba(37,99,235,.4);
	z-index: 100;
	transition: background 0.15s, transform 0.1s;
}

.lcv-upload-fab:hover { background: #1d4ed8; transform: translateY(-2px); }

/* Slide-in drawer */
.lcv-drawer {
	position: fixed;
	top: 0;
	right: 0;
	bottom: 0;
	width: 420px;
	max-width: 100vw;
	background: #fff;
	box-shadow: -4px 0 32px rgba(0,0,0,.15);
	z-index: 200;
	transform: translateX(100%);
	transition: transform 0.25s ease;
	overflow-y: auto;
}

.lcv-drawer.open { transform: translateX(0); }

.lcv-drawer-inner { padding: 2rem 1.75rem; }

.lcv-drawer-close {
	position: absolute;
	top: 1rem;
	right: 1rem;
	background: none;
	border: none;
	font-size: 1.5rem;
	cursor: pointer;
	color: var(--lcg-muted);
	line-height: 1;
}

.lcv-drawer-title {
	font-size: 1.25rem;
	font-weight: 700;
	color: var(--lcg-navy);
	margin: 0 0 1.5rem;
}

.lcv-label {
	display: flex;
	flex-direction: column;
	gap: 0.35rem;
	font-size: 0.875rem;
	font-weight: 600;
	color: var(--lcg-text);
	margin-bottom: 1rem;
}

.lcv-input,
.lcv-select {
	padding: 0.55rem 0.75rem;
	border: 1px solid var(--lcg-border);
	border-radius: 6px;
	font-size: 0.875rem;
	color: var(--lcg-text);
	outline: none;
	transition: border-color 0.15s;
	font-family: inherit;
}

.lcv-input:focus,
.lcv-select:focus { border-color: var(--lcg-blue); }

.lcv-textarea { min-height: 80px; resize: vertical; }

.lcv-msg {
	font-size: 0.875rem;
	padding: 0.6rem 0.75rem;
	border-radius: 6px;
	margin-bottom: 0.75rem;
}

.lcv-msg.success { background: #dcfce7; color: #166534; }
.lcv-msg.error   { background: #fee2e2; color: #991b1b; }
.lcv-msg:empty   { display: none; }

/* Edit modal overlay */
.lcv-modal-overlay {
	position: fixed;
	inset: 0;
	background: rgba(0,0,0,.45);
	z-index: 300;
	display: flex;
	align-items: center;
	justify-content: center;
}

.lcv-modal {
	background: #fff;
	border-radius: 12px;
	padding: 2rem;
	width: 480px;
	max-width: 95vw;
	box-shadow: 0 8px 40px rgba(0,0,0,.2);
}

.lcv-modal-title {
	font-size: 1.125rem;
	font-weight: 700;
	color: var(--lcg-navy);
	margin: 0 0 1.25rem;
}

/* Search results */
.lcv-result-card {
	background: var(--lcg-card);
	border: 1px solid var(--lcg-border);
	border-radius: 10px;
	padding: 1rem 1.25rem;
	margin-bottom: 0.75rem;
	display: flex;
	flex-direction: column;
	gap: 0.35rem;
}

.lcv-result-path {
	font-size: 0.75rem;
	color: var(--lcg-muted);
}

.lcv-result-title {
	font-size: 0.9375rem;
	font-weight: 700;
	color: var(--lcg-navy);
}

.lcv-result-desc {
	font-size: 0.8125rem;
	color: var(--lcg-muted);
}

.lcv-result-actions { display: flex; gap: 0.5rem; margin-top: 0.25rem; }

/* Responsive */
@media (max-width: 700px) {
	.lcv-body { flex-direction: column; }
	.lcv-sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--lcg-border); }
	.lcv-panel { padding: 1rem 0; }
	.lcv-drawer { width: 100%; }
}