@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@200..800&display=swap');

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black: #111111;
  --white: #ffffff;
  --gray-light: #f5f5f5;
  --gray-mid: #e0e0e0;
  --gray-text: #555555;
  --accent: #c9a84c;
  --font-body: 'Manrope', sans-serif;
  --font-display: 'Manrope', sans-serif;
  --nav-height: 60px;
  --max-width: 900px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 300;
  line-height: 1.4;
  letter-spacing: -0.1px;
  color: var(--black);
  background: var(--white);
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── Navbar ── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--gray-mid);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  padding: 0 2rem;
}

.navbar-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--black);
}

.navbar-nav {
  display: flex;
  gap: 2rem;
}

.navbar-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--black);
  transition: color 0.2s;
}

.navbar-nav a:hover,
.navbar-nav a.active { color: var(--accent); }

/* ── Hero (Home) ── */
.hero {
  position: relative;
  width: 100%;
  height: 560px;
  overflow: hidden;
}

.hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: brightness(0.65);
}

.hero-text {
  position: absolute;
  bottom: 0;
  left: 0;
  padding: 2.5rem 3rem;
  color: var(--white);
  max-width: 520px;
}

.hero-text h1 {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.75rem;
}

.hero-text p {
  font-size: 0.95rem;
  line-height: 1.65;
  opacity: 0.9;
  margin-bottom: 1.5rem;
}

.btn {
  display: inline-block;
  padding: 0.65rem 1.5rem;
  border-radius: 2rem;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-dark {
  background: var(--black);
  color: var(--white);
  border: 2px solid var(--black);
}

.btn-dark:hover {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}

.btn-outline {
  background: transparent;
  color: var(--black);
  border: 2px solid var(--black);
}

.btn-outline:hover {
  background: var(--black);
  color: var(--white);
}

/* ── Section shared ── */
.section {
  padding: 4rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

/* ── Home: Bài viết grid ── */
.home-posts {
  padding: 4rem 2rem;
}

.home-posts-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 3rem;
  align-items: center;
}

.home-posts-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}

.home-posts-meta p {
  color: var(--gray-text);
  font-size: 0.9rem;
  line-height: 1.6;
  margin: 0;
}

.posts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.post-card {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
}

.post-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.post-card:hover img { transform: scale(1.04); }

.post-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, transparent 55%);
  display: flex;
  align-items: flex-end;
  padding: 1rem;
}

.post-card-overlay span {
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 500;
  line-height: 1.4;
}

/* ── Home: Dịch vụ ── */
.home-services {
  padding: 4rem 2rem;
  border-top: 1px solid var(--gray-mid);
}

.home-services-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.home-services-inner > .section-title {
  margin-bottom: 2rem;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.service-card-home {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.service-card-home img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  border-radius: 4px;
}

.service-card-home h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
}

.service-card-home p {
  font-size: 0.875rem;
  color: var(--gray-text);
  line-height: 1.6;
}

.btn-full {
  display: block;
  width: 100%;
  padding: 1.1rem;
  background: var(--black);
  color: var(--white);
  text-align: center;
  border-radius: 3rem;
  font-size: 0.95rem;
  font-weight: 500;
  transition: opacity 0.2s;
}

.btn-full:hover { opacity: 0.82; }

/* ── Về tôi page ── */
.about-page {
  max-width: 700px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.about-page h1 {
  font-family: var(--font-display);
  font-size: 1.9rem;
  text-align: center;
  margin-bottom: 2rem;
}

.about-page .hero-img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  object-position: center top;
  border-radius: 4px;
  margin-bottom: 2rem;
}

.about-page p {
  margin-bottom: 1.25rem;
  color: #222;
  font-size: 0.975rem;
}

.about-page .highlight {
  background: #ffe066;
  padding: 0 2px;
}

.about-page blockquote {
  text-align: center;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-style: normal;
  font-weight: 600;
  margin: 2rem 0;
  color: var(--black);
}

/* ── Bài viết page ── */
.blog-page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 2rem;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 3rem;
  align-items: start;
}

.blog-sidebar .section-title { margin-bottom: 0.75rem; }

.blog-sidebar p {
  font-size: 0.875rem;
  color: var(--gray-text);
  line-height: 1.65;
}

.blog-search {
  display: flex;
  gap: 0;
  margin-bottom: 2rem;
}

.blog-search input {
  flex: 1;
  padding: 0.6rem 1rem;
  border: 1px solid var(--gray-mid);
  border-right: none;
  font-size: 0.9rem;
  font-family: var(--font-body);
  outline: none;
}

.blog-search button {
  padding: 0.6rem 1.2rem;
  background: var(--black);
  color: var(--white);
  border: none;
  font-size: 0.9rem;
  cursor: pointer;
}

.blog-list { display: flex; flex-direction: column; gap: 2.5rem; }

.blog-item { display: flex; flex-direction: column; gap: 0.75rem; }

.blog-item img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: 4px;
}

.blog-item h2 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.4;
}

.blog-item h2 a:hover { color: var(--accent); }

.blog-item .date {
  font-size: 0.8rem;
  color: var(--gray-text);
}

.blog-item .excerpt {
  font-size: 0.9rem;
  color: var(--gray-text);
  line-height: 1.65;
}

.read-more {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--black);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.blog-pagination {
  display: flex;
  gap: 0.5rem;
  margin-top: 2rem;
  font-size: 0.9rem;
}

.blog-pagination a {
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--gray-mid);
  border-radius: 2px;
}

.blog-pagination a:hover,
.blog-pagination a.current {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

/* ── Dịch vụ page ── */
.services-page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.services-page h1 {
  font-family: var(--font-display);
  font-size: 1.9rem;
  text-align: center;
  margin-bottom: 1rem;
}

.services-page .intro {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3rem;
  font-size: 0.95rem;
  color: var(--gray-text);
}

.services-page .intro mark {
  background: #111;
  color: #fff;
  padding: 0 4px;
}

.services-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: start;
}

.service-detail-card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 1rem;
}

.service-detail-card h2 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.service-detail-card .subtitle {
  font-style: italic;
  font-size: 0.85rem;
  color: var(--gray-text);
  margin-bottom: 0.75rem;
}

.service-detail-card p,
.service-detail-card li {
  font-size: 0.875rem;
  color: #333;
  line-height: 1.7;
}

.service-detail-card ul {
  list-style: disc;
  padding-left: 1.2rem;
  margin: 0.5rem 0;
}

.service-detail-card .meta {
  margin-top: 1rem;
  font-size: 0.875rem;
}

.service-detail-card .meta strong { font-weight: 600; }

/* ── Contact form ── */
.contact-section {
  background: var(--black);
  color: var(--white);
  padding: 3rem 2rem;
  margin-top: 4rem;
}

.contact-inner {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-inner h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.contact-inner p { font-size: 0.9rem; line-height: 1.7; }
.contact-inner a { color: var(--accent); }

.contact-form { display: flex; flex-direction: column; gap: 0.75rem; }

.contact-form input,
.contact-form textarea {
  padding: 0.7rem 1rem;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.9rem;
  border-radius: 3px;
  outline: none;
  transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus { border-color: var(--accent); }

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

.contact-form button {
  padding: 0.75rem;
  background: var(--accent);
  color: var(--black);
  border: none;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 3px;
  cursor: pointer;
  transition: opacity 0.2s;
}

.contact-form button:hover { opacity: 0.85; }

/* ── Single Post ── */
.post-page {
  max-width: 700px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.post-page .post-meta {
  font-size: 0.8rem;
  color: var(--gray-text);
  margin-bottom: 0.5rem;
}

.post-page h1 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.post-page .post-info {
  font-size: 0.8rem;
  color: var(--gray-text);
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--gray-mid);
}

.post-page .featured-img {
  width: 100%;
  border-radius: 4px;
  margin-bottom: 2rem;
}

.post-page h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin: 2rem 0 0.75rem;
}

.post-page h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin: 1.5rem 0 0.5rem;
}

.post-page p { margin-bottom: 1.1rem; font-size: 0.975rem; color: #222; }

.post-page ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.post-page ul li { font-size: 0.975rem; margin-bottom: 0.35rem; }

.post-page .toc {
  background: var(--gray-light);
  padding: 1.25rem 1.5rem;
  border-radius: 4px;
  margin-bottom: 2rem;
}

.post-page .toc p { font-weight: 600; margin-bottom: 0.5rem; }
.post-page .toc ul { margin: 0; list-style: none; }
.wp-block-table-of-contents ul { list-style: none; padding-left: 0; }
.wp-block-table-of-contents ul ul { padding-left: 1rem; }
.post-page .toc li { margin-bottom: 0.25rem; }
.post-page .toc a { text-decoration: underline; text-underline-offset: 2px; font-size: 0.9rem; }

.post-nav {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--gray-mid);
}

.post-nav h3 {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gray-text);
}

.related-posts { display: flex; flex-direction: column; gap: 0.5rem; }

.related-posts a {
  font-family: var(--font-display);
  font-size: 0.95rem;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--gray-mid);
  padding: 1.5rem 2rem;
  text-align: left;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.footer strong {
  font-family: var(--font-display);
  font-size: 0.9rem;
  display: block;
  margin-bottom: 0.2rem;
}

.footer span {
  font-size: 0.8rem;
  color: var(--gray-text);
}

/* ── Hamburger button ── */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--black);
  border-radius: 2px;
  transition: all 0.25s ease;
}

/* Animate to X when open */
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .hero { height: 420px; }
  .hero-text { padding: 2rem 1.5rem; }
  .hero-text h1 { font-size: 1.8rem; }

  .home-posts-inner { grid-template-columns: 1fr; }
  .posts-grid { grid-template-columns: 1fr 1fr; }

  .services-grid,
  .services-detail-grid { grid-template-columns: 1fr; }

  .blog-page { grid-template-columns: 1fr; }
  .blog-sidebar { display: none; }

  .contact-inner { grid-template-columns: 1fr; }

  /* Mobile nav */
  .nav-toggle { display: flex; }

  .navbar-nav {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-mid);
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 0;
  }

  .navbar-nav.open { display: flex; }

  .navbar-nav li a {
    display: block;
    padding: 0.75rem 2rem;
    font-size: 0.95rem;
  }
}

@media (max-width: 480px) {
  .posts-grid { grid-template-columns: 1fr; }
  .navbar-brand { font-size: 0.95rem; }
}