/* ============================================================
   Abasteros Blog — Main Stylesheet
   Clean, responsive, minimal design for agricultural intelligence
   ============================================================ */

/* --- Variables & Reset ------------------------------------ */
:root {
  --color-primary:      #2D6A4F;
  --color-primary-dark: #1B4332;
  --color-accent:       #52B788;
  --color-accent-light: #95D5B2;
  --color-bg:           #F9FAF8;
  --color-bg-card:      #FFFFFF;
  --color-text:         #1C2B20;
  --color-text-muted:   #5A7062;
  --color-border:       #D8E8DC;
  --color-code-bg:      #F1F5F0;
  --color-tag-bg:       #E8F5EC;

  --font-body:    'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-heading: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

  --radius:       6px;
  --radius-lg:    12px;
  --shadow-sm:    0 1px 3px rgba(0,0,0,.07);
  --shadow-md:    0 4px 12px rgba(0,0,0,.10);
  --transition:   200ms ease;

  --content-width: 740px;
  --wide-width:    1100px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-accent);
}

/* --- Typography ------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-primary-dark);
  margin-top: 2rem;
  margin-bottom: .75rem;
}

h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); margin-top: 0; }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.45rem); }
h4 { font-size: 1.15rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.9rem; }

p {
  margin-bottom: 1.25rem;
}

blockquote {
  border-left: 4px solid var(--color-accent);
  background: var(--color-code-bg);
  padding: 1rem 1.5rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1.5rem 0;
  color: var(--color-text-muted);
  font-style: italic;
}

blockquote p:last-child {
  margin-bottom: 0;
}

code {
  font-family: var(--font-mono);
  font-size: 0.87em;
  background: var(--color-code-bg);
  border: 1px solid var(--color-border);
  padding: .15em .4em;
  border-radius: var(--radius);
}

pre {
  background: #1C2B20;
  color: #d8f3e3;
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-lg);
  overflow-x: auto;
  margin: 1.5rem 0;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.6;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

ul, ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}

li {
  margin-bottom: .35rem;
}

hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2.5rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.92rem;
}

th, td {
  padding: .65rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

th {
  background: var(--color-code-bg);
  font-weight: 600;
  color: var(--color-primary-dark);
}

tr:hover td {
  background: rgba(82, 183, 136, .06);
}

/* --- Layout ---------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.content-wrap {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

main {
  flex: 1;
}

/* --- Header ---------------------------------------------- */
.site-header {
  background: var(--color-primary-dark);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,.18);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 1rem;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-weight: 800;
  font-size: 1.2rem;
  color: #fff;
  letter-spacing: -.01em;
  white-space: nowrap;
}

.site-logo:hover {
  color: var(--color-accent-light);
}

.logo-mark {
  width: 32px;
  height: 32px;
  background: var(--color-accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

/* --- Navigation ------------------------------------------ */
.site-nav {
  display: flex;
  align-items: center;
  gap: .25rem;
}

.site-nav a {
  color: rgba(255,255,255,.80);
  font-size: .9rem;
  font-weight: 500;
  padding: .4rem .85rem;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}

.site-nav a:hover,
.site-nav a.active {
  color: #fff;
  background: rgba(255,255,255,.12);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: #fff;
  padding: .5rem;
  border-radius: var(--radius);
}

/* --- Hero Banner ----------------------------------------- */
.hero {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 60%, var(--color-accent) 100%);
  color: #fff;
  padding: 5rem 1.5rem 4rem;
  text-align: center;
}

.hero h1 {
  color: #fff;
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 1rem;
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,.85);
  max-width: 600px;
  margin: 0 auto 2rem;
}

.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.3);
  color: #fff;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .35rem .9rem;
  border-radius: 99px;
  margin-bottom: 1.25rem;
}

/* --- Post Cards ------------------------------------------ */
.posts-section {
  padding: 3rem 0 4rem;
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.75rem;
}

.post-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.post-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.post-card-meta {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
  font-size: .8rem;
  color: var(--color-text-muted);
}

.post-card-category {
  background: var(--color-tag-bg);
  color: var(--color-primary);
  font-weight: 600;
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: .2rem .65rem;
  border-radius: 99px;
  border: 1px solid var(--color-border);
}

.post-card h2 {
  font-size: 1.2rem;
  margin: 0;
  line-height: 1.35;
}

.post-card h2 a {
  color: var(--color-primary-dark);
}

.post-card h2 a:hover {
  color: var(--color-primary);
}

.post-card-summary {
  color: var(--color-text-muted);
  font-size: .92rem;
  line-height: 1.65;
  flex: 1;
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  color: var(--color-primary);
  font-size: .88rem;
  font-weight: 600;
  margin-top: .25rem;
  transition: gap var(--transition), color var(--transition);
}

.read-more:hover {
  color: var(--color-accent);
  gap: .55rem;
}

/* --- Section Titles -------------------------------------- */
.section-title {
  font-size: 1.5rem;
  margin-bottom: 1.75rem;
  padding-bottom: .75rem;
  border-bottom: 2px solid var(--color-border);
  color: var(--color-primary-dark);
}

/* --- Single Post ----------------------------------------- */
.article-header {
  padding: 3rem 0 2rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 2.5rem;
}

.article-header h1 {
  margin-bottom: 1rem;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem;
  font-size: .85rem;
  color: var(--color-text-muted);
}

.article-meta .sep {
  color: var(--color-border);
}

.article-body {
  font-size: 1.05rem;
}

.article-body > * + * {
  margin-top: 1.25rem;
}

/* RST / Docutils specific classes */
.article-body .section h1:first-child {
  display: none; /* title already shown in header */
}

.article-body .topic-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: .5rem;
}

.article-body .contents {
  background: var(--color-code-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  display: inline-block;
  min-width: 240px;
}

.article-body .note,
.article-body .warning,
.article-body .tip,
.article-body .important {
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  margin: 1.5rem 0;
  border-left: 4px solid var(--color-accent);
  background: var(--color-code-bg);
}

.article-body .warning {
  border-left-color: #E9C46A;
  background: #FFFBF0;
}

.article-body .admonition-title {
  font-weight: 700;
  margin-bottom: .4rem;
  color: var(--color-primary-dark);
}

/* Tags */
.article-tags {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  align-items: center;
}

.tag-label {
  font-size: .8rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-right: .25rem;
}

.tag {
  display: inline-block;
  background: var(--color-tag-bg);
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  font-size: .78rem;
  font-weight: 600;
  padding: .25rem .65rem;
  border-radius: 99px;
  text-transform: lowercase;
  transition: background var(--transition), border-color var(--transition);
}

.tag:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent);
  color: var(--color-primary-dark);
}

/* Post navigation */
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.post-nav-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.post-nav-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.post-nav-label {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  font-weight: 700;
  color: var(--color-text-muted);
  margin-bottom: .35rem;
}

.post-nav-item.next {
  text-align: right;
}

/* --- List Page ------------------------------------------- */
.list-header {
  background: var(--color-primary-dark);
  color: #fff;
  padding: 3rem 1.5rem 2.5rem;
}

.list-header h1 {
  color: #fff;
  margin-bottom: .5rem;
}

.list-header p {
  color: rgba(255,255,255,.75);
  margin: 0;
}

/* --- Pagination ------------------------------------------ */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: .5rem;
  padding: 2.5rem 0;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  height: 2.25rem;
  padding: 0 .75rem;
  border-radius: var(--radius);
  font-size: .88rem;
  font-weight: 500;
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  color: var(--color-text);
  transition: all var(--transition);
}

.pagination a:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.pagination .active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* --- Footer ---------------------------------------------- */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,.7);
  padding: 2.5rem 1.5rem;
  margin-top: auto;
  text-align: center;
  font-size: .85rem;
}

.site-footer a {
  color: var(--color-accent-light);
}

.site-footer a:hover {
  color: #fff;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: .75rem;
  flex-wrap: wrap;
}

/* --- Utilities ------------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}

.reading-time {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  font-size: .8rem;
  color: var(--color-text-muted);
}

/* --- Responsive ------------------------------------------ */
@media (max-width: 768px) {
  .posts-grid {
    grid-template-columns: 1fr;
  }

  .post-nav {
    grid-template-columns: 1fr;
  }

  .post-nav-item.next {
    text-align: left;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-primary-dark);
    flex-direction: column;
    align-items: stretch;
    padding: .75rem;
    box-shadow: var(--shadow-md);
  }

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

  .site-nav a {
    padding: .65rem 1rem;
    font-size: .95rem;
  }

  .site-header .container {
    position: relative;
  }

  .article-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: .4rem;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 3.5rem 1rem 3rem;
  }
}

/* --- Print ----------------------------------------------- */
@media print {
  .site-header, .site-footer, .post-nav, .article-tags, .cta-section, .article-cta { display: none; }
  body { font-size: 12pt; color: #000; background: #fff; }
  a { color: #000; text-decoration: underline; }
}

/* --- Marketing & CTA Sections ---------------------------- */
.btn-register {
  background: var(--color-accent);
  color: var(--color-primary-dark) !important;
  font-weight: 700;
  padding: 0.4rem 1.2rem;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.9rem;
  transition: all 0.2s ease;
  border: 1px solid var(--color-accent);
  display: inline-block;
  text-align: center;
}

.btn-register:hover {
  background: var(--color-accent-light) !important;
  color: var(--color-primary-dark) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.cta-section {
  padding: 1rem 0;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: #ffffff;
  border-radius: 16px;
  margin: 4rem auto;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  position: relative;
  max-width: 1000px;
}

.cta-box {
  padding: 3rem 2rem;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.cta-content h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: #ffffff;
  margin-top: 0;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.cta-content p {
  font-size: 1.15rem;
  color: var(--color-accent-light);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.cta-features {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.cta-feature {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.1);
  padding: 0.5rem 1.2rem;
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.cta-feature .feature-icon {
  font-size: 1.2rem;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-primary-cta {
  background: var(--color-accent);
  color: var(--color-primary-dark) !important;
  font-weight: 700;
  padding: 0.8rem 2rem;
  border-radius: 8px;
  text-decoration: none;
  font-size: 1.05rem;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(82, 183, 136, 0.3);
  display: inline-block;
  border: none;
}

.btn-primary-cta:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(82, 183, 136, 0.4);
}

.btn-secondary-cta {
  background: transparent;
  color: #ffffff !important;
  font-weight: 600;
  padding: 0.8rem 2rem;
  border-radius: 8px;
  text-decoration: none;
  font-size: 1.05rem;
  transition: all 0.2s ease;
  border: 2px solid rgba(255, 255, 255, 0.3);
  display: inline-block;
}

.btn-secondary-cta:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #ffffff;
  transform: translateY(-2px);
}

/* Article Page CTA */
.article-cta {
  background: var(--color-tag-bg);
  border: 1px solid var(--color-border);
  border-left: 5px solid var(--color-primary);
  border-radius: 12px;
  padding: 2.5rem 2rem;
  margin: 3.5rem 0;
  box-shadow: var(--shadow);
}

.article-cta h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary-dark);
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.article-cta p {
  font-size: 1.05rem;
  color: var(--color-text);
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.article-cta .btn-primary-cta {
  font-size: 0.95rem;
  padding: 0.6rem 1.5rem;
}

.article-cta .btn-secondary-cta {
  font-size: 0.95rem;
  padding: 0.6rem 1.5rem;
  color: var(--color-primary-dark) !important;
  border: 2px solid var(--color-border);
}

.article-cta .btn-secondary-cta:hover {
  background: rgba(45, 106, 79, 0.05);
  border-color: var(--color-primary);
}

/* Responsive improvements */
@media (max-width: 768px) {
  .cta-section {
    margin: 3rem 1rem;
    border-radius: 12px;
  }
  .cta-box {
    padding: 2rem 1rem;
  }
  .cta-content h2 {
    font-size: 1.8rem;
  }
  .cta-features {
    gap: 1rem;
  }
  .cta-actions {
    flex-direction: column;
    width: 100%;
  }
  .btn-primary-cta, .btn-secondary-cta {
    width: 100%;
    text-align: center;
    box-sizing: border-box;
  }
  .cta-buttons {
    flex-direction: column;
  }
}