:root {
	--bg: #f7f7fb;
	--surface: #ffffff;
	--text: #1a1a2e;
	--muted: #6b7280;
	--primary: #4f46e5;
	--primary-contrast: #ffffff;
	--border: #e5e7eb;
	--danger: #dc2626;
	--radius: 12px;
	--shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
}

[data-theme="dark"] {
	--bg: #0f1226;
	--surface: #181a33;
	--text: #f3f4f6;
	--muted: #9ca3af;
	--primary: #818cf8;
	--primary-contrast: #0f1226;
	--border: #2a2d50;
	--shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

body {
	margin: 0;
	font-family: system-ui, -apple-system, "Segoe UI", Tahoma, sans-serif;
	background: var(--bg);
	color: var(--text);
	line-height: 1.6;
	min-height: 100vh;
	display: flex;
	flex-direction: column;
}

.container {
	width: min(960px, 100%);
	margin: 0 auto;
	padding: 16px;
}

.app-header {
	background: var(--surface);
	border-bottom: 1px solid var(--border);
}
.app-header .container {
	display: flex;
	align-items: center;
	justify-content: space-between;
}
.app-header h1 { margin: 0; font-size: 1.4rem; }

main.container { flex: 1; }

.panel {
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	box-shadow: var(--shadow);
	padding: 16px;
	margin-bottom: 16px;
}

.note-form { display: grid; gap: 10px; }
.note-form input, .note-form textarea, .toolbar input, .toolbar select {
	width: 100%;
	padding: 10px 12px;
	border: 1px solid var(--border);
	border-radius: 8px;
	background: var(--bg);
	color: var(--text);
	font: inherit;
}
.note-form textarea { resize: vertical; }

.form-actions { display: flex; gap: 8px; }

.btn {
	padding: 8px 14px;
	border-radius: 8px;
	border: 1px solid transparent;
	cursor: pointer;
	font: inherit;
}
.btn-primary { background: var(--primary); color: var(--primary-contrast); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn:hover { opacity: 0.9; }

.form-error { color: var(--danger); min-height: 1.2em; margin: 0; font-size: 0.9rem; }

.toolbar {
	display: grid;
	grid-template-columns: 1fr 200px;
	gap: 8px;
	margin-bottom: 16px;
}
@media (max-width: 560px) { .toolbar { grid-template-columns: 1fr; } }

.notes-list { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }

.note-card {
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	box-shadow: var(--shadow);
	padding: 14px;
	display: flex;
	flex-direction: column;
	gap: 8px;
}
.note-card.pinned { border-color: var(--primary); }
.note-card h3 { margin: 0; font-size: 1.05rem; }
.note-card p { margin: 0; color: var(--muted); white-space: pre-wrap; }
.note-card .tags { display: flex; flex-wrap: wrap; gap: 6px; }
.note-card .tag { font-size: 0.75rem; background: var(--bg); border: 1px solid var(--border); border-radius: 999px; padding: 2px 8px; }
.note-card .actions { display: flex; gap: 6px; margin-top: auto; }

.empty-state { color: var(--muted); text-align: center; grid-column: 1 / -1; }

.app-footer { border-top: 1px solid var(--border); background: var(--surface); text-align: center; }
.app-footer .container { display: flex; justify-content: center; align-items: center; }
.app-footer small { color: var(--muted); }
.app-footer a { color: var(--primary); }