/* ===== Basic Reset ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Sarabun", "Segoe UI", Tahoma, sans-serif;
  background-color: #f6f7fb;
  color: #2b2b2b;
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ===== Header / Site Title ===== */
header {
  background-color: #2f3e6e;
  color: #ffffff;
  padding: 24px 16px;
  text-align: center;
}

header h1 {
  font-size: 1.8rem;
  margin-bottom: 6px;
}

header p {
  font-size: 0.95rem;
  opacity: 0.85;
}

/* ===== Navigation Menu (Flexbox) ===== */
nav {
  background-color: #3d4f8a;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}

nav a {
  color: #ffffff;
  padding: 14px 20px;
  font-weight: 500;
  transition: background 0.2s;
}

nav a:hover,
nav a.active {
  background-color: #2f3e6e;
}

/* ===== Main Content ===== */
main {
  max-width: 960px;
  margin: 36px auto;
  padding: 0 20px;
}

section {
  background: #ffffff;
  border-radius: 10px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

h2 {
  color: #2f3e6e;
  margin-bottom: 14px;
  border-left: 5px solid #2f3e6e;
  padding-left: 10px;
}

/* ===== Homepage ===== */
.hero {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.hero img {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid #2f3e6e;
}

/* ===== Portfolio Grid ===== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.card {
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 16px;
  text-align: center;
}

.card img {
  width: 100%;
  max-height: 140px;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 10px;
}

.btn {
  display: inline-block;
  padding: 8px 16px;
  margin: 6px 4px 0;
  border-radius: 6px;
  font-size: 0.9rem;
  cursor: pointer;
}

.btn-view {
  background-color: #2f3e6e;
  color: #fff;
}

.btn-download {
  background-color: #e8b923;
  color: #2b2b2b;
}

/* ===== CV Page ===== */
.cv-item {
  margin-bottom: 14px;
}

.cv-item h3 {
  color: #3d4f8a;
}

/* ===== Contact Form ===== */
form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 480px;
  margin: 0 auto;
}

.contact-section {
  max-width: 620px;
  margin: 0 auto;
}

.contact-section h2 {
  text-align: left;
}

.contact-section form {
  align-items: center;
}

.contact-section label {
  text-align: center;
  width: 100%;
  font-weight: 500;
}

.contact-section input,
.contact-section textarea {
  width: 100%;
}

.contact-section button[type="submit"] {
  width: 100%;
}

input,
textarea {
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-family: inherit;
  font-size: 1rem;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

button[type="submit"] {
  background-color: #2f3e6e;
  color: #fff;
  border: none;
  padding: 12px;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
}

button[type="submit"]:hover {
  background-color: #3d4f8a;
}

/* ===== Footer ===== */
footer {
  text-align: center;
  padding: 24px 16px;
  color: #9098b5;
  font-size: 0.85rem;
  border-top: 1px solid #e4e7f3;
  margin-top: 20px;
}

footer .footer-brand {
  font-weight: 600;
  color: #3d4f8a;
}

/* ===== Server Info Bar (ASP.NET pages) ===== */
.server-info {
  background: #ffffff;
  border-left: 5px solid #3d4f8a;
  border-radius: 8px;
  padding: 14px 20px;
  margin: 0 0 32px;
  box-shadow: 0 2px 8px rgba(47, 62, 110, 0.10);
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 28px;
}

.server-info span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  font-size: 0.85rem;
  color: #444d6e;
  font-weight: 500;
}

/* ===== Feedback Box (Contact / Guestbook) ===== */
.feedback-box {
  margin-top: 14px;
  padding: 12px;
  border-radius: 6px;
  font-size: 0.95rem;
}

.feedback-success {
  background-color: #e2f7e6;
  color: #227a3d;
  border: 1px solid #a8e6b8;
}

.feedback-error {
  background-color: #fdeaea;
  color: #c0392b;
  border: 1px solid #f5b6b6;
}

/* ===== Guestbook ===== */
.msg-list {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.msg-item {
  background: #f6f7fb;
  border-left: 4px solid #2f3e6e;
  border-radius: 6px;
  padding: 12px 16px;
}

.msg-item .msg-name {
  font-weight: 600;
  color: #2f3e6e;
}

.msg-item .msg-time {
  font-size: 0.75rem;
  color: #999;
  margin-left: 8px;
}

.msg-item .msg-text {
  margin-top: 4px;
}

/* ===== JS Toggle Button ===== */
.js-toggle-btn {
  background-color: #3d4f8a;
  color: #fff;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  margin-top: 10px;
}

.js-toggle-btn:hover {
  background-color: #2f3e6e;
}

.hidden-content {
  display: none;
  margin-top: 12px;
}