best shot

website-7sys/css/header.css

@@ -1,55 +1,171 @@
-/* Header and Navigation */
+/* Header */
 header {
     position: fixed;
-    width: 100%;
     top: 0;
-    z-index: 1000;
-    background: linear-gradient(to bottom, 
-        rgba(20, 20, 20, 0.95) 0%,
-        var(--bg-primary) 100%
-    );
-    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
-}
-
-/* Light theme gradient override */
-.light-theme header {
-    background: linear-gradient(to bottom, 
-        rgba(255, 255, 255, 0.95) 0%,
-        var(--bg-primary) 100%
-    );
+    left: 0;
+    width: 100%;
+    z-index: var(--z-sticky);
+    background: rgba(var(--bg-primary), 0.8);
+    backdrop-filter: blur(10px);
+    -webkit-backdrop-filter: blur(10px);
+    border-bottom: 1px solid var(--border-color);
+    transition: all var(--transition-base);
 }
 
+/* Main Navigation */
 .main-nav {
     display: flex;
     justify-content: space-between;
     align-items: center;
-    padding: 1rem;
-    max-width: 1200px;
+    height: 70px;
+    padding: 0 var(--space-xl);
+    max-width: 1400px;
     margin: 0 auto;
 }
 
+/* Logo */
 .logo {
-    font-size: 2rem;
-    font-weight: bold;
+    font-size: var(--font-size-2xl);
+    font-weight: 700;
+    color: var(--text-color);
+    text-decoration: none;
+    display: flex;
+    align-items: center;
+    gap: var(--space-xs);
+}
+
+.logo-text {
     color: var(--accent-color);
 }
 
+.logo-sys {
+    background: linear-gradient(
+        135deg,
+        var(--accent-color) 0%,
+        var(--accent-purple) 100%
+    );
+    -webkit-background-clip: text;
+    background-clip: text;
+    color: transparent;
+}
+
+/* Navigation Controls */
+.nav-controls {
+    display: flex;
+    align-items: center;
+    gap: var(--space-md);
+}
+
+/* Theme Toggle */
 #theme-toggle {
-    background: none;
+    background: transparent;
     border: none;
     color: var(--text-color);
-    font-size: 1.5rem;
+    width: 40px;
+    height: 40px;
+    border-radius: var(--border-radius-full);
+    display: flex;
+    align-items: center;
+    justify-content: center;
     cursor: pointer;
-    padding: 0.5rem;
-    transition: var(--transition);
+    transition: all var(--transition-base);
 }
 
 #theme-toggle:hover {
-    color: var(--accent-color);
-    transform: scale(1.1);
+    background: var(--card-bg);
 }
 
-#theme-toggle:focus {
-    outline: 2px solid var(--accent-color);
-    border-radius: 4px;
+#theme-toggle i {
+    font-size: var(--font-size-lg);
+    transition: transform var(--transition-base);
+}
+
+#theme-toggle:hover i {
+    transform: rotate(15deg);
+}
+
+/* Scroll Progress */
+.scroll-progress {
+    position: absolute;
+    bottom: -2px;
+    left: 0;
+    width: 100%;
+    height: 2px;
+    background: var(--accent-color);
+    transform-origin: left;
+    transform: scaleX(0);
+    transition: transform var(--transition-base);
+}
+
+/* Header Scroll State */
+header.scrolled {
+    box-shadow: var(--shadow-md);
+    background: var(--bg-primary);
+}
+
+/* Skip Link */
+.skip-link {
+    position: fixed;
+    top: -100%;
+    left: 50%;
+    transform: translateX(-50%);
+    background: var(--accent-color);
+    color: white;
+    padding: var(--space-sm) var(--space-md);
+    border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
+    text-decoration: none;
+    z-index: var(--z-maximum);
+    transition: top var(--transition-base);
+}
+
+.skip-link:focus {
+    top: 0;
+}
+
+/* Responsive Design */
+@media (max-width: 768px) {
+    .main-nav {
+        padding: 0 var(--space-md);
+    }
+
+    .logo {
+        font-size: var(--font-size-xl);
+    }
+}
+
+/* High Contrast Mode */
+@media (forced-colors: active) {
+    header {
+        border-bottom: 1px solid CanvasText;
+    }
+
+    .logo-text,
+    .logo-sys {
+        background: none;
+        color: CanvasText;
+    }
+}
+
+/* Reduced Motion */
+@media (prefers-reduced-motion: reduce) {
+    header,
+    .scroll-progress,
+    #theme-toggle,
+    .skip-link {
+        transition: none;
+    }
+
+    #theme-toggle:hover i {
+        transform: none;
+    }
+}
+
+/* Dark Theme Specific */
+.dark-theme header {
+    background: rgba(10, 10, 10, 0.8);
+}
+
+/* Light Theme Specific */
+.light-theme header {
+    background: rgba(242, 242, 242, 0.8);
 }