@import url("https://fonts.googleapis.com/css2?family=Lato:wght@300;400;700&family=Nunito:wght@400;600;700;800&display=swap");

:root {
      --forest-green: #166534;
      --sand: #fef3c7;
      --warm-white: #faf8f3;
      --dark-text: #1a1a1a;
      --light-gray: #f5f3f0;
      --border-color: #e0dcd8;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: 'Lato', sans-serif;
      color: var(--dark-text);
      background-color: var(--warm-white);
      line-height: 1.6;
      font-size: 16px;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    /* Header & Navigation */
    header {
      background-color: var(--warm-white);
      border-bottom: 1px solid var(--border-color);
      padding: 1.5rem 2rem;
      position: sticky;
      top: 0;
      z-index: 100;
    }

    .header-container {
      max-width: 1200px;
      margin: 0 auto;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .logo {
      font-family: 'Nunito', sans-serif;
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--forest-green);
      text-decoration: none;
      letter-spacing: 0.05em;
    }

    nav {
      display: flex;
      gap: 2.5rem;
    }

    nav a {
      font-size: 0.95rem;
      color: var(--dark-text);
      text-decoration: none;
      letter-spacing: 0.03em;
      font-weight: 400;
      transition: color 0.2s ease;
      border-bottom: 2px solid transparent;
    }

    nav a:hover {
      color: var(--forest-green);
    }

    nav a.active {
      color: var(--forest-green);
      border-bottom: 2px solid var(--forest-green);
    }

    /* Hero Section */
    .hero {
      max-width: 1200px;
      margin: 0 auto;
      padding: 5rem 2rem 3rem;
      text-align: center;
    }

    .hero-eyebrow {
      font-family: 'Nunito', sans-serif;
      font-size: 0.75rem;
      text-transform: uppercase;
      letter-spacing: 0.15em;
      color: var(--forest-green);
      margin-bottom: 1rem;
      font-weight: 600;
    }

    .hero h1 {
      font-family: 'Nunito', sans-serif;
      font-size: 4rem;
      font-weight: 800;
      line-height: 1.1;
      color: var(--dark-text);
      margin-bottom: 1rem;
      letter-spacing: -0.02em;
    }

    .hero-subheading {
      font-size: 1.25rem;
      color: #666;
      font-weight: 300;
      max-width: 600px;
      margin: 0 auto;
      letter-spacing: 0.01em;
    }

    /* Featured Review Section */
    .featured-section {
      max-width: 1200px;
      margin: 4rem auto;
      padding: 0 2rem;
    }

    .section-header {
      margin-bottom: 3rem;
    }

    .section-header h2 {
      font-family: 'Nunito', sans-serif;
      font-size: 2.5rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 0.5rem;
      letter-spacing: -0.01em;
    }

    .section-header p {
      font-size: 1.1rem;
      color: #888;
      font-weight: 300;
    }

    .featured-layout {
      display: grid;
      grid-template-columns: 1fr 1.5fr;
      gap: 3rem;
      align-items: center;
    }

    .featured-image-container {
      height: 450px;
      overflow: hidden;
      border: 1px solid var(--border-color);
    }

    .featured-image-container img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .featured-content h3 {
      font-family: 'Nunito', sans-serif;
      font-size: 1.75rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 1rem;
    }

    .featured-content p {
      color: #555;
      margin-bottom: 1.5rem;
      line-height: 1.8;
    }

    .featured-specs {
      background-color: var(--light-gray);
      padding: 1.5rem;
      border: 1px solid var(--border-color);
      margin-bottom: 1.5rem;
    }

    .spec-item {
      display: flex;
      justify-content: space-between;
      padding: 0.75rem 0;
      border-bottom: 1px solid var(--border-color);
    }

    .spec-item:last-child {
      border-bottom: none;
    }

    .spec-label {
      font-weight: 600;
      color: var(--forest-green);
    }

    .spec-value {
      color: #666;
    }

    .featured-cta {
      display: inline-block;
      background-color: var(--forest-green);
      color: white;
      padding: 0.875rem 2rem;
      text-decoration: none;
      border: 1px solid var(--forest-green);
      font-weight: 600;
      font-size: 0.95rem;
      transition: background-color 0.2s ease;
      letter-spacing: 0.02em;
    }

    .featured-cta:hover {
      background-color: #0f4620;
    }

    /* Review Categories Section */
    .categories-section {
      max-width: 1200px;
      margin: 4rem auto;
      padding: 0 2rem;
    }

    .category-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }

    .category-card {
      border: 1px solid var(--border-color);
      padding: 2rem 1.5rem;
      text-align: center;
      transition: border-color 0.2s ease, background-color 0.2s ease;
    }

    .category-card:hover {
      background-color: var(--light-gray);
      border-color: var(--forest-green);
    }

    .category-icon {
      font-size: 2.5rem;
      margin-bottom: 1rem;
    }

    .category-card h3 {
      font-family: 'Nunito', sans-serif;
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 0.5rem;
    }

    .category-card p {
      font-size: 0.9rem;
      color: #777;
      line-height: 1.6;
    }

    /* Pen Guide Section */
    .pen-guide-section {
      max-width: 1200px;
      margin: 4rem auto;
      padding: 0 2rem;
    }

    .guide-layout {
      display: grid;
      grid-template-columns: 1.5fr 1fr;
      gap: 3rem;
      align-items: center;
    }

    .guide-content h3 {
      font-family: 'Nunito', sans-serif;
      font-size: 1.75rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 1.5rem;
    }

    .guide-content p {
      color: #555;
      margin-bottom: 1.5rem;
      line-height: 1.8;
    }

    .guide-list {
      list-style: none;
      margin-bottom: 1.5rem;
    }

    .guide-list li {
      padding: 0.75rem 0;
      padding-left: 1.75rem;
      position: relative;
      color: #666;
    }

    .guide-list li:before {
      content: "→";
      position: absolute;
      left: 0;
      color: var(--forest-green);
      font-weight: 600;
    }

    .guide-image-container {
      height: 400px;
      overflow: hidden;
      border: 1px solid var(--border-color);
    }

    .guide-image-container img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* Paper Behavior Section */
    .paper-section {
      max-width: 1200px;
      margin: 4rem auto;
      padding: 0 2rem;
    }

    .paper-layout {
      display: grid;
      grid-template-columns: 1fr 1.5fr;
      gap: 3rem;
      align-items: center;
    }

    .paper-image-container {
      height: 400px;
      overflow: hidden;
      border: 1px solid var(--border-color);
    }

    .paper-image-container img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .paper-content h3 {
      font-family: 'Nunito', sans-serif;
      font-size: 1.75rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 1.5rem;
    }

    .paper-content p {
      color: #555;
      margin-bottom: 1.5rem;
      line-height: 1.8;
    }

    .paper-traits {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1.5rem;
      margin-top: 2rem;
    }

    .trait-box {
      background-color: var(--light-gray);
      padding: 1.5rem;
      border: 1px solid var(--border-color);
    }

    .trait-title {
      font-family: 'Nunito', sans-serif;
      font-weight: 700;
      color: var(--forest-green);
      margin-bottom: 0.5rem;
    }

    .trait-description {
      font-size: 0.9rem;
      color: #666;
      line-height: 1.6;
    }

    /* Explore CTA Section */
    .explore-section {
      background-color: var(--sand);
      padding: 4rem 2rem;
      margin-top: 4rem;
      text-align: center;
    }

    .explore-container {
      max-width: 700px;
      margin: 0 auto;
    }

    .explore-section h2 {
      font-family: 'Nunito', sans-serif;
      font-size: 2.25rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 1rem;
      letter-spacing: -0.01em;
    }

    .explore-section p {
      font-size: 1.1rem;
      color: #666;
      margin-bottom: 2rem;
      font-weight: 300;
    }

    .explore-links {
      display: flex;
      gap: 2rem;
      justify-content: center;
      flex-wrap: wrap;
    }

    .explore-link {
      color: var(--forest-green);
      text-decoration: none;
      font-weight: 600;
      font-size: 0.95rem;
      border-bottom: 2px solid transparent;
      transition: border-color 0.2s ease;
      letter-spacing: 0.02em;
    }

    .explore-link:hover {
      border-bottom: 2px solid var(--forest-green);
    }

    /* Footer */
    footer {
      background-color: var(--dark-text);
      color: white;
      margin-top: 4rem;
    }

    .footer-top {
      max-width: 1200px;
      margin: 0 auto;
      padding: 3rem 2rem;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 2rem;
    }

    .footer-column h3 {
      font-family: 'Nunito', sans-serif;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 1.5rem;
      letter-spacing: 0.05em;
      text-transform: uppercase;
    }

    .footer-column ul {
      list-style: none;
    }

    .footer-column ul li {
      margin-bottom: 0.75rem;
    }

    .footer-column ul li a {
      color: #ccc;
      text-decoration: none;
      font-size: 0.9rem;
      transition: color 0.2s ease;
    }

    .footer-column ul li a:hover {
      color: var(--sand);
    }

    .footer-about p {
      color: #ccc;
      font-size: 0.9rem;
      line-height: 1.7;
      margin-bottom: 1rem;
    }

    .footer-contact p {
      color: #ccc;
      font-size: 0.9rem;
      line-height: 1.7;
    }

    .footer-contact a {
      color: var(--sand);
      text-decoration: none;
      transition: color 0.2s ease;
    }

    .footer-contact a:hover {
      color: white;
    }

    .footer-bottom {
      background-color: #0a0a0a;
      padding: 1.5rem 2rem;
      text-align: center;
      font-size: 0.85rem;
      color: #999;
      border-top: 1px solid #333;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .header-container {
        flex-direction: column;
        gap: 1.5rem;
      }

      nav {
        gap: 1.5rem;
      }

      .hero h1 {
        font-size: 2.5rem;
      }

      .hero-subheading {
        font-size: 1rem;
      }

      .featured-layout {
        grid-template-columns: 1fr;
      }

      .featured-image-container {
        height: 300px;
      }

      .category-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .guide-layout {
        grid-template-columns: 1fr;
      }

      .guide-image-container {
        height: 300px;
      }

      .paper-layout {
        grid-template-columns: 1fr;
      }

      .paper-image-container {
        height: 300px;
      }

      .paper-traits {
        grid-template-columns: 1fr;
      }

      .section-header h2 {
        font-size: 1.75rem;
      }

      .footer-top {
        grid-template-columns: repeat(2, 1fr);
      }

      .explore-links {
        flex-direction: column;
        gap: 1rem;
      }
    }

    @media (max-width: 480px) {
      body {
        font-size: 14px;
      }

      .hero {
        padding: 3rem 1.5rem 2rem;
      }

      .hero h1 {
        font-size: 1.75rem;
      }

      .hero-subheading {
        font-size: 0.95rem;
      }

      .section-header h2 {
        font-size: 1.5rem;
      }

      .category-grid {
        grid-template-columns: 1fr;
      }

      .footer-top {
        grid-template-columns: 1fr;
      }

      nav {
        gap: 1rem;
      }

      nav a {
        font-size: 0.85rem;
      }
    }
/* ── image safety ── */
img { max-width: 100%; height: auto; display: block; }
img[style*='width:'] { max-width: 100%; }