Fix: session-scope ccec state and default tag layouts to Cascade to align with layout page

 src/restart.rs |  3 ++-
 src/state.rs   | 16 +++++++++++-----
 src/types.rs   |  2 +-
 3 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/src/restart.rs b/src/restart.rs
index af84cc5..ca1f11d 100644
--- a/src/restart.rs
+++ b/src/restart.rs
@@ -200,7 +200,8 @@ pub fn wm_reload(state: &mut WindowManager) {
     }
 
     // Clear per-tag layout defaults
-    state.has_tag_layout = [false; crate::types::NUM_TAGS];
+    state.tag_layouts = [crate::types::TilingMode::Cascade; crate::types::NUM_TAGS];
+    state.has_tag_layout = [true; crate::types::NUM_TAGS];
 
     // Mark status for update after reload
     state.needs_status_update = true;
diff --git a/src/state.rs b/src/state.rs
index 978d4ce..8e41a94 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -23,11 +23,17 @@ use std::path::PathBuf;
 
 /// Get the state file path: ~/.cache/ccec_state
 fn state_file_path() -> PathBuf {
-    let home = std::env::var("HOME").unwrap_or_else(|_| "/tmp".to_string());
-    let mut path = PathBuf::from(home);
-    path.push(".cache");
-    path.push("ccec_state");
-    path
+    if let Ok(runtime_dir) = std::env::var("XDG_RUNTIME_DIR") {
+        let mut path = PathBuf::from(runtime_dir);
+        path.push("ccec_state");
+        path
+    } else {
+        let home = std::env::var("HOME").unwrap_or_else(|_| "/tmp".to_string());
+        let mut path = PathBuf::from(home);
+        path.push(".cache");
+        path.push("ccec_state");
+        path
+    }
 }
 
 /// Persistent state snapshot (plain-text, line-oriented).
diff --git a/src/types.rs b/src/types.rs
index 587a606..b906622 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -378,7 +378,7 @@ impl Default for WindowManager {
             exit_requested: false,
             global_layout: TilingMode::Cascade,
             tag_layouts: [TilingMode::Cascade; NUM_TAGS],
-            has_tag_layout: [false; NUM_TAGS],
+            has_tag_layout: [true; NUM_TAGS],
             input_devices: Vec::new(),
             env_vars: HashMap::new(),
             pending_startup_apps: Vec::new(),