diff --git a/style.css b/style.css
new file mode 100644
index 0000000..a2a437e
--- /dev/null
+++ b/style.css
@@ -0,0 +1,186 @@
+* {
+  box-sizing: border-box;
+  margin: 0;
+  padding: 0;
+}
+
+body {
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+  background: #f8f9fa;
+  color: #1a1a1a;
+  line-height: 1.6;
+}
+
+.container {
+  max-width: 720px;
+  margin: 0 auto;
+  padding: 40px 20px 80px;
+}
+
+header {
+  text-align: center;
+  margin-bottom: 48px;
+}
+
+h1 {
+  font-size: 2rem;
+  font-weight: 700;
+  margin-bottom: 8px;
+  color: #1a1a1a;
+}
+
+.subtitle {
+  color: #666;
+  font-size: 1rem;
+  margin-bottom: 24px;
+}
+
+.progress-bar {
+  width: 100%;
+  height: 6px;
+  background: #e0e0e0;
+  border-radius: 3px;
+  overflow: hidden;
+  margin-bottom: 8px;
+}
+
+.progress-fill {
+  height: 100%;
+  background: #2d6a4f;
+  border-radius: 3px;
+  transition: width 0.3s ease;
+  width: 0%;
+}
+
+.progress-text {
+  font-size: 0.85rem;
+  color: #888;
+}
+
+.section {
+  background: #fff;
+  border-radius: 12px;
+  padding: 32px;
+  margin-bottom: 24px;
+  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
+}
+
+.section h2 {
+  font-size: 1.1rem;
+  font-weight: 600;
+  color: #2d6a4f;
+  margin-bottom: 24px;
+  padding-bottom: 12px;
+  border-bottom: 2px solid #e8f5e9;
+}
+
+.question {
+  margin-bottom: 28px;
+}
+
+.question:last-child {
+  margin-bottom: 0;
+}
+
+label {
+  display: block;
+  font-weight: 500;
+  margin-bottom: 8px;
+  font-size: 0.95rem;
+}
+
+textarea, input[type="text"], input[type="email"], input[type="tel"] {
+  width: 100%;
+  padding: 12px 14px;
+  border: 1.5px solid #ddd;
+  border-radius: 8px;
+  font-size: 0.95rem;
+  font-family: inherit;
+  color: #1a1a1a;
+  background: #fafafa;
+  transition: border-color 0.2s;
+  resize: vertical;
+}
+
+textarea {
+  min-height: 80px;
+}
+
+textarea:focus, input:focus {
+  outline: none;
+  border-color: #2d6a4f;
+  background: #fff;
+}
+
+textarea.comment {
+  min-height: 50px;
+  margin-top: 8px;
+  font-size: 0.88rem;
+  color: #555;
+  background: #f5f5f5;
+}
+
+textarea.comment::placeholder {
+  color: #aaa;
+  font-style: italic;
+}
+
+button[type="submit"] {
+  display: block;
+  width: 100%;
+  padding: 16px;
+  background: #2d6a4f;
+  color: #fff;
+  border: none;
+  border-radius: 10px;
+  font-size: 1.1rem;
+  font-weight: 600;
+  cursor: pointer;
+  transition: background 0.2s, transform 0.1s;
+  margin-top: 32px;
+}
+
+button[type="submit"]:hover {
+  background: #1b4332;
+}
+
+button[type="submit"]:active {
+  transform: scale(0.99);
+}
+
+button[type="submit"]:disabled {
+  background: #aaa;
+  cursor: not-allowed;
+}
+
+.submit-note {
+  text-align: center;
+  color: #888;
+  font-size: 0.85rem;
+  margin-top: 12px;
+}
+
+.error-message {
+  background: #fff3f3;
+  border: 1px solid #f5c6cb;
+  color: #721c24;
+  padding: 12px 16px;
+  border-radius: 8px;
+  margin-top: 16px;
+  font-size: 0.9rem;
+  display: none;
+}
+
+@media (max-width: 600px) {
+  .container {
+    padding: 24px 16px 60px;
+  }
+
+  .section {
+    padding: 20px;
+  }
+
+  h1 {
+    font-size: 1.5rem;
+  }
+}