/* ============================================================
   Hazardous Waste Disposal Houston — Blog stylesheet
   ============================================================ */

:root {
  --color-bg: #FDFAF3;
  --color-surface: #FFFFFF;
  --color-ink: #16232A;
  --color-ink-soft: #3F5560;
  --color-muted: #6B7A82;
  --color-line: #E6DFCF;
  --color-line-strong: #C9BEA5;
  --color-primary: #0D3B4A;
  --color-primary-2: #155467;
  --color-accent: #B8722A;
  --color-accent-soft: #F3E4CC;
  --color-paint: #6E2A44;
  --color-paint-soft: #F1DDE4;
  --color-alarm: #8A5A11;
  --color-alarm-soft: #FAEBCF;
  --shadow-sm: 0 1px 2px rgba(22,35,42,0.06);
  --shadow-md: 0 4px 20px rgba(22,35,42,0.08);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --font-serif: "Playfair Display", "Source Serif Pro", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --content-max: 1160px;
  --article-max: 720px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-color: rgba(13,59,74,0.35);
  text-underline-offset: 3px;
  transition: color .15s ease, text-decoration-color .15s ease;
}
a:hover { color: var(--color-accent); text-decoration-color: currentColor; }

/* --------- Layout helpers --------- */
.container {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 24px;
}
.article-container {
  max-width: var(--article-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* --------- Header --------- */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-line);
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: saturate(1.2) blur(6px);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 0;
}
.site-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}
.site-logo img { height: 44px; width: auto; }
.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 26px;
}
.site-nav a {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 15px;
  color: var(--color-ink);
  text-decoration: none;
  padding: 6px 0;
  position: relative;
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 2px;
  background: var(--color-accent);
  transition: right .18s ease;
}
.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after { right: 0; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  cursor: pointer;
  color: var(--color-ink);
  font-size: 14px;
  font-weight: 600;
}

/* --------- Hero (home) --------- */
.hero {
  background:
    radial-gradient(1200px 400px at 80% -10%, rgba(184,114,42,0.12), transparent 60%),
    radial-gradient(900px 400px at -10% 110%, rgba(13,59,74,0.12), transparent 60%),
    var(--color-bg);
  padding: 84px 0 72px;
  border-bottom: 1px solid var(--color-line);
}
.hero__eyebrow {
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 600;
  margin: 0 0 18px;
}
.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.08;
  color: var(--color-primary);
  margin: 0 0 22px;
  letter-spacing: -0.5px;
  max-width: 820px;
}
.hero p.lead {
  font-size: 19px;
  color: var(--color-ink-soft);
  max-width: 680px;
  margin: 0 0 28px;
}

/* --------- Section headings --------- */
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3vw, 32px);
  color: var(--color-primary);
  margin: 0 0 24px;
  letter-spacing: -0.3px;
}
.section-eyebrow {
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 700;
  margin: 0 0 10px;
}
section.block { padding: 72px 0; }
section.block--alt { background: #F5EFDF; border-top: 1px solid var(--color-line); border-bottom: 1px solid var(--color-line); }

/* --------- Article cards grid --------- */
.card-grid {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(3, 1fr);
}
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.card__cover {
  aspect-ratio: 16 / 9;
  background: var(--color-primary);
  position: relative;
  overflow: hidden;
}
.card__cover--paint { background: var(--color-paint); }
.card__cover--alarm { background: var(--color-alarm); }
.card__cover::after {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(200px 120px at 90% 15%, rgba(255,255,255,0.14), transparent 65%),
    radial-gradient(240px 160px at 10% 90%, rgba(0,0,0,0.18), transparent 65%);
  pointer-events: none;
}
.card__cover-label {
  position: absolute;
  left: 20px; bottom: 18px;
  color: #FDFAF3;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
}
.card__cover-title {
  position: absolute;
  left: 20px; right: 20px; top: 20px;
  color: #FDFAF3;
  font-family: var(--font-serif);
  font-size: 22px;
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.2px;
}
.card__body { padding: 22px 22px 24px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.card__meta {
  font-size: 12.5px;
  color: var(--color-muted);
  letter-spacing: 0.2px;
}
.card__title {
  font-family: var(--font-serif);
  font-size: 21px;
  line-height: 1.25;
  margin: 0;
  color: var(--color-primary);
}
.card__title a { color: inherit; text-decoration: none; }
.card__title a:hover { color: var(--color-accent); }
.card__excerpt { margin: 0; color: var(--color-ink-soft); font-size: 15.5px; }
.card__more { margin-top: auto; font-size: 14px; font-weight: 600; letter-spacing: 0.3px; text-decoration: none; }
.card__more::after { content: " →"; }

/* --------- Article page --------- */
.article-hero {
  padding: 72px 0 40px;
  background: linear-gradient(180deg, #F5EFDF 0%, var(--color-bg) 100%);
  border-bottom: 1px solid var(--color-line);
}
.article-hero--paint { background: linear-gradient(180deg, #F1DDE4 0%, var(--color-bg) 100%); }
.article-hero--alarm { background: linear-gradient(180deg, #FAEBCF 0%, var(--color-bg) 100%); }

.article-crumbs {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 18px;
}
.article-crumbs a { color: var(--color-ink-soft); }
.article-category {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: 3px;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--color-primary);
  background: rgba(13,59,74,0.08);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.article-category--paint { color: var(--color-paint); background: rgba(110,42,68,0.08); }
.article-category--alarm { color: var(--color-alarm); background: rgba(138,90,17,0.08); }

.article-title {
  font-family: var(--font-serif);
  font-size: clamp(30px, 4.4vw, 46px);
  line-height: 1.12;
  color: var(--color-primary);
  margin: 0 0 22px;
  letter-spacing: -0.4px;
  max-width: 780px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  color: var(--color-muted);
  font-size: 14px;
  margin-bottom: 8px;
}
.article-meta strong { color: var(--color-ink); font-weight: 600; }
.article-meta__dot { width: 4px; height: 4px; background: var(--color-line-strong); border-radius: 50%; display: inline-block; }

.article-body {
  padding: 44px 0 72px;
  font-size: 18px;
  color: var(--color-ink);
}
.article-body p { margin: 0 0 22px; }
.article-body h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 2.6vw, 30px);
  color: var(--color-primary);
  margin: 44px 0 16px;
  line-height: 1.2;
  letter-spacing: -0.2px;
}
.article-body h3 {
  font-family: var(--font-sans);
  font-size: 19px;
  color: var(--color-primary);
  margin: 32px 0 12px;
  font-weight: 700;
  letter-spacing: 0.1px;
}
.article-body ul, .article-body ol {
  margin: 0 0 22px;
  padding-left: 22px;
}
.article-body li { margin-bottom: 8px; }
.article-body blockquote {
  border-left: 4px solid var(--color-accent);
  margin: 30px 0;
  padding: 8px 0 8px 22px;
  color: var(--color-ink-soft);
  font-family: var(--font-serif);
  font-size: 20px;
  font-style: italic;
  line-height: 1.5;
}
.article-body strong { color: var(--color-ink); }

.callout {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-left: 4px solid var(--color-primary);
  padding: 20px 22px;
  border-radius: var(--radius-sm);
  margin: 28px 0;
  font-size: 16px;
  color: var(--color-ink-soft);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 40px 0 0;
}
.article-tags span {
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-ink-soft);
  background: rgba(13,59,74,0.06);
  padding: 6px 12px;
  border-radius: 999px;
}

.article-author {
  display: flex;
  gap: 16px;
  align-items: center;
  margin: 44px 0 0;
  padding: 22px;
  background: #F5EFDF;
  border-radius: var(--radius-md);
}
.article-author__avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #F5D971;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 20px;
  flex: none;
}
.article-author__name { font-weight: 700; color: var(--color-ink); }
.article-author__role { font-size: 14px; color: var(--color-muted); margin-top: 2px; }

/* --------- Related --------- */
.related {
  padding: 60px 0 80px;
  background: #F5EFDF;
  border-top: 1px solid var(--color-line);
}

/* --------- Footer --------- */
.site-footer {
  background: var(--color-primary);
  color: #E7EDEF;
  padding: 60px 0 30px;
  margin-top: 0;
}
.site-footer a { color: #F5D971; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-brand p { color: #B9CBD1; font-size: 15px; margin: 12px 0 0; max-width: 320px; }
.footer-col h4 {
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: #F5D971;
  margin: 0 0 16px;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 10px; font-size: 15px; color: #C4D4D9; }
.footer-bottom {
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: #9FB3B9;
}

/* --------- Utility --------- */
.text-center { text-align: center; }
.pill {
  display: inline-block;
  padding: 4px 10px;
  background: rgba(13,59,74,0.08);
  color: var(--color-primary);
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-weight: 700;
  border-radius: 999px;
}

/* Contact + About */
.simple-page {
  padding: 72px 0;
}
.simple-page h1 {
  font-family: var(--font-serif);
  font-size: clamp(32px, 4.4vw, 44px);
  color: var(--color-primary);
  margin: 0 0 20px;
  letter-spacing: -0.3px;
}
.simple-page p { max-width: 720px; color: var(--color-ink-soft); font-size: 18px; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 40px;
}
.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 28px;
}
.contact-card h3 {
  font-family: var(--font-serif);
  color: var(--color-primary);
  font-size: 22px;
  margin: 0 0 12px;
}

/* --------- Mobile --------- */
@media (max-width: 900px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  body { font-size: 16.5px; }
  .site-header__inner { padding: 12px 0; }
  .site-logo img { height: 38px; }
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--color-surface);
    border-top: 1px solid var(--color-line);
    border-bottom: 1px solid var(--color-line);
    padding: 10px 20px 16px;
  }
  .site-nav.is-open { display: block; }
  .site-nav ul {
    flex-direction: column;
    gap: 4px;
  }
  .site-nav a {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-line);
  }
  .nav-toggle { display: inline-flex; align-items: center; gap: 8px; }
  .hero { padding: 56px 0 44px; }
  .card-grid { grid-template-columns: 1fr; gap: 22px; }
  section.block { padding: 52px 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .article-hero { padding: 44px 0 30px; }
  .article-body { padding: 30px 0 60px; font-size: 17px; }
  .article-body h2 { margin-top: 34px; }
  .article-body blockquote { font-size: 18px; padding-left: 16px; }
  .article-author { flex-direction: column; align-items: flex-start; }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}