add work experience section

src/style.css

@@ -392,6 +392,111 @@ section {
     margin-top: 0.25rem;
 }
 
+/* Experience Timeline */
+.timeline {
+    position: relative;
+    padding-left: 2rem;
+    margin-top: 2rem;
+}
+
+.timeline::before {
+    content: '';
+    position: absolute;
+    left: 7px;
+    top: 8px;
+    bottom: 8px;
+    width: 2px;
+    background: var(--border);
+    border-radius: 1px;
+}
+
+.timeline-item {
+    position: relative;
+    padding-bottom: 2.5rem;
+}
+
+.timeline-item:last-child {
+    padding-bottom: 0;
+}
+
+.timeline-marker {
+    position: absolute;
+    left: -2rem;
+    top: 6px;
+    width: 16px;
+    height: 16px;
+    border-radius: 50%;
+    background: var(--bg-primary);
+    border: 2px solid var(--accent);
+    z-index: 1;
+}
+
+.timeline-content {
+    background: var(--bg-card);
+    border: 1px solid var(--border);
+    border-radius: 16px;
+    padding: 1.5rem;
+    transition: all 0.3s ease;
+}
+
+.timeline-content:hover {
+    border-color: rgba(234, 179, 8, 0.3);
+    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
+}
+
+.timeline-header {
+    display: flex;
+    align-items: baseline;
+    gap: 0.75rem;
+    margin-bottom: 0.25rem;
+    flex-wrap: wrap;
+}
+
+.timeline-header h3 {
+    font-size: 1.1rem;
+    font-weight: 700;
+}
+
+.timeline-company {
+    color: var(--accent);
+    font-weight: 600;
+    font-size: 0.9rem;
+}
+
+.timeline-date {
+    display: inline-block;
+    font-size: 0.8rem;
+    color: var(--text-muted);
+    margin-bottom: 1rem;
+    font-weight: 500;
+}
+
+.timeline-list {
+    list-style: none;
+    padding: 0;
+}
+
+.timeline-list li {
+    color: var(--text-secondary);
+    font-size: 0.875rem;
+    line-height: 1.6;
+    padding-left: 1rem;
+    position: relative;
+    margin-bottom: 0.5rem;
+}
+
+.timeline-list li::before {
+    content: '';
+    position: absolute;
+    left: 0;
+    top: 0.55rem;
+    width: 5px;
+    height: 5px;
+    border-radius: 50%;
+    background: var(--accent);
+    opacity: 0.6;
+}
+
 /* Skills */
 .skills-section {
     background: var(--bg-secondary);
@@ -656,7 +761,7 @@ section {
 
 .gpg-keys-grid {
     display: grid;
-    grid-template-columns: repeat(auto-fit, minmax(480px, 1fr));
+    grid-template-columns: repeat(auto-fit, minmax(min(480px, 100%), 1fr));
     gap: 1.5rem;
     margin-top: 2rem;
     text-align: left;
@@ -668,6 +773,7 @@ section {
     border-radius: 16px;
     padding: 1.5rem;
     transition: all 0.3s ease;
+    overflow-x: auto;
 }
 
 .gpg-key-card:hover {
@@ -750,6 +856,8 @@ section {
     line-height: 1.5;
     color: var(--text-secondary);
     white-space: pre;
+    display: block;
+    min-width: max-content;
 }
 
 /* Footer */
@@ -781,7 +889,7 @@ footer p {
 /* Responsive */
 @media (max-width: 768px) {
     .nav-links {
-        display: none;
+        visibility: hidden;
         position: absolute;
         top: 100%;
         left: 0;
@@ -791,21 +899,52 @@ footer p {
         background: rgba(10, 10, 11, 0.95);
         backdrop-filter: blur(20px);
         border-bottom: 1px solid var(--border);
-        padding: 1rem 2rem;
+        padding: 0 2rem;
+        overflow: hidden;
+        max-height: 0;
+        transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), padding 0.4s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.4s;
     }
 
     .nav-links.active {
-        display: flex;
+        visibility: visible;
+        max-height: 500px;
+        padding: 1rem 2rem;
     }
 
     .nav-links li {
         padding: 0.75rem 0;
+        opacity: 0;
+        transform: translateY(-10px);
+        transition: opacity 0.3s ease, transform 0.3s ease;
     }
 
+    .nav-links.active li {
+        opacity: 1;
+        transform: translateY(0);
+    }
+
+    .nav-links.active li:nth-child(1) { transition-delay: 0.05s; }
+    .nav-links.active li:nth-child(2) { transition-delay: 0.1s; }
+    .nav-links.active li:nth-child(3) { transition-delay: 0.15s; }
+    .nav-links.active li:nth-child(4) { transition-delay: 0.2s; }
+    .nav-links.active li:nth-child(5) { transition-delay: 0.25s; }
+
     .hamburger {
         display: flex;
     }
 
+    .hamburger.active span:nth-child(1) {
+        transform: translateY(7px) rotate(45deg);
+    }
+
+    .hamburger.active span:nth-child(2) {
+        opacity: 0;
+    }
+
+    .hamburger.active span:nth-child(3) {
+        transform: translateY(-7px) rotate(-45deg);
+    }
+
     .about-grid {
         grid-template-columns: 1fr;
         gap: 2.5rem;
@@ -848,6 +987,29 @@ footer p {
     .gpg-key-block code {
         font-size: 0.6rem;
     }
+
+    .timeline {
+        padding-left: 1.5rem;
+    }
+
+    .timeline::before {
+        left: 5px;
+    }
+
+    .timeline-marker {
+        left: -1.5rem;
+        width: 12px;
+        height: 12px;
+    }
+
+    .timeline-content {
+        padding: 1.25rem;
+    }
+
+    .timeline-header {
+        flex-direction: column;
+        gap: 0.25rem;
+    }
 }
 
 @media (max-width: 480px) {