/* ============================================================
   ClearTeen — Main Stylesheet
   ============================================================ */

:root {
  --green:       #2d7a4f;
  --green-light: #e8f5ee;
  --green-mid:   #4a9e6b;
  --accent:      #f4a261;
  --text:        #1a1a2e;
  --text-muted:  #5a5a72;
  --border:      #e0e0ec;
  --bg:          #ffffff;
  --bg-soft:     #f9fafb;
  --radius:      10px;
  --shadow:      0 2px 12px rgba(0,0,0,0.08);
  --max-w:       1100px;
  --font:        'Inter', system-ui, -apple-system, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── LAYOUT ── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 20px; }

/* ── HEADER ── */
header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 1px 6px rgba(0,0,0,0.06);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; max-width: var(--max-w); margin: 0 auto;
}
.logo img { height: 48px; width: auto; }
.logo span {
  font-size: 1.5rem; font-weight: 800; color: var(--green);
  letter-spacing: -0.5px;
}

nav { display: flex; gap: 28px; align-items: center; }
nav a {
  font-size: 0.95rem; font-weight: 500; color: var(--text-muted);
  transition: color 0.2s;
}
nav a:hover, nav a.active { color: var(--green); text-decoration: none; }
.nav-cta {
  background: var(--green); color: #fff !important;
  padding: 8px 18px; border-radius: 6px; font-weight: 600 !important;
  transition: background 0.2s !important;
}
.nav-cta:hover { background: var(--green-mid) !important; }

.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: 0.3s; }

/* ── HERO ── */
.hero {
  background: linear-gradient(135deg, var(--green-light) 0%, #fff 60%);
  padding: 72px 20px 64px;
}
.hero-inner {
  max-width: var(--max-w); margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.hero-text h1 {
  font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 800; line-height: 1.2;
  color: var(--text); margin-bottom: 16px;
}
.hero-text h1 span { color: var(--green); }
.hero-text p { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 28px; max-width: 480px; }
.hero-img img { border-radius: 16px; box-shadow: var(--shadow); width: 100%; object-fit: cover; max-height: 420px; }

/* ── BUTTONS ── */
.btn {
  display: inline-block; padding: 12px 26px; border-radius: 7px;
  font-weight: 600; font-size: 0.95rem; cursor: pointer; transition: 0.2s;
  text-decoration: none !important;
}
.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { background: var(--green-mid); }
.btn-outline { border: 2px solid var(--green); color: var(--green); background: transparent; }
.btn-outline:hover { background: var(--green); color: #fff; }

/* ── SECTION TITLES ── */
.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; color: var(--text);
  margin-bottom: 8px;
}
.section-sub { color: var(--text-muted); margin-bottom: 36px; font-size: 1.05rem; }

/* ── CARDS ── */
.cards-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px; margin-top: 8px;
}
.card {
  border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; background: #fff; box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.12); }
.card-img { width: 100%; height: 200px; object-fit: cover; }
.card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.card-cat {
  font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;
  color: var(--green); margin-bottom: 8px;
}
.card-title { font-size: 1.05rem; font-weight: 700; line-height: 1.35; color: var(--text); margin-bottom: 10px; }
.card-title a { color: inherit; }
.card-title a:hover { color: var(--green); text-decoration: none; }
.card-excerpt { font-size: 0.9rem; color: var(--text-muted); flex: 1; margin-bottom: 14px; }
.card-date { font-size: 0.8rem; color: var(--text-muted); margin-top: auto; }

/* ── FEATURES / ICONS ── */
.features { padding: 64px 20px; background: var(--bg-soft); }
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px; max-width: var(--max-w); margin: 0 auto;
}
.feature-card {
  background: #fff; padding: 28px; border-radius: var(--radius);
  border: 1px solid var(--border); text-align: center;
}
.feature-icon { font-size: 2.2rem; margin-bottom: 12px; }
.feature-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 0.9rem; color: var(--text-muted); }

/* ── SECTION PADDING ── */
.section { padding: 64px 20px; }
.section-alt { padding: 64px 20px; background: var(--bg-soft); }

/* ── BLOG PAGE ── */
.blog-header { padding: 48px 20px 32px; background: var(--green-light); }
.blog-header h1 { font-size: clamp(1.8rem, 4vw, 2.5rem); font-weight: 800; }
.blog-header p { color: var(--text-muted); margin-top: 8px; }

.cat-filters { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0 32px; }
.cat-btn {
  padding: 7px 16px; border-radius: 20px; font-size: 0.85rem; font-weight: 600;
  border: 2px solid var(--border); background: #fff; color: var(--text-muted);
  cursor: pointer; transition: 0.2s;
}
.cat-btn:hover, .cat-btn.active { border-color: var(--green); color: var(--green); background: var(--green-light); }

/* ── SINGLE POST ── */
.post-header { padding: 48px 20px 0; background: var(--green-light); }
.post-header-inner { max-width: 780px; margin: 0 auto; }
.post-cat { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; color: var(--green); margin-bottom: 12px; }
.post-header h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 800; line-height: 1.25; }
.post-meta { font-size: 0.85rem; color: var(--text-muted); margin-top: 12px; padding-bottom: 32px; }
.post-featured-img { max-width: 780px; margin: 0 auto; padding: 0 20px; }
.post-featured-img img { border-radius: var(--radius); width: 100%; max-height: 440px; object-fit: cover; margin-top: -24px; box-shadow: var(--shadow); }

.post-body { max-width: 780px; margin: 0 auto; padding: 36px 20px 60px; }
.post-body h2 { font-size: 1.5rem; font-weight: 800; margin: 36px 0 12px; color: var(--text); }
.post-body h3 { font-size: 1.2rem; font-weight: 700; margin: 28px 0 10px; color: var(--text); }
.post-body h4 { font-size: 1.05rem; font-weight: 700; margin: 20px 0 8px; }
.post-body p { margin-bottom: 18px; }
.post-body ul, .post-body ol { margin: 0 0 18px 24px; }
.post-body li { margin-bottom: 6px; }
.post-body img { border-radius: var(--radius); margin: 24px 0; width: 100%; }
.post-body a { color: var(--green); font-weight: 500; }
.post-body strong { font-weight: 700; }
.post-body blockquote {
  border-left: 4px solid var(--green); padding: 12px 20px;
  background: var(--green-light); border-radius: 0 var(--radius) var(--radius) 0;
  margin: 24px 0; font-style: italic;
}
.post-body table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 0.9rem; }
.post-body th { background: var(--green); color: #fff; padding: 10px 14px; text-align: left; }
.post-body td { padding: 10px 14px; border-bottom: 1px solid var(--border); }
.post-body tr:nth-child(even) td { background: var(--bg-soft); }

.post-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 36px; }
.tag {
  font-size: 0.8rem; padding: 4px 12px; border-radius: 20px;
  background: var(--green-light); color: var(--green); font-weight: 600;
}

.related-posts { border-top: 1px solid var(--border); padding: 40px 20px; background: var(--bg-soft); }
.related-posts .container { max-width: 780px; }

/* ── ABOUT / STATIC PAGES ── */
.page-header { padding: 56px 20px 48px; background: var(--green-light); text-align: center; }
.page-header h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; }
.page-header p { color: var(--text-muted); margin-top: 10px; font-size: 1.1rem; }
.page-body { max-width: 760px; margin: 0 auto; padding: 48px 20px 72px; }
.page-body h2 { font-size: 1.4rem; font-weight: 800; margin: 36px 0 12px; }
.page-body p { margin-bottom: 16px; }
.page-body ul { margin: 0 0 16px 24px; }
.page-body li { margin-bottom: 6px; }

/* ── CONTACT ── */
.contact-form { max-width: 560px; margin: 0 auto; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.9rem; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 11px 14px; border: 1px solid var(--border);
  border-radius: 7px; font-size: 1rem; font-family: var(--font);
  transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus {
  outline: none; border-color: var(--green); box-shadow: 0 0 0 3px rgba(45,122,79,0.12);
}
.form-group textarea { min-height: 130px; resize: vertical; }

/* ── CTA BANNER ── */
.cta-banner {
  background: linear-gradient(135deg, var(--green) 0%, var(--green-mid) 100%);
  color: #fff; padding: 64px 20px; text-align: center;
}
.cta-banner h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; margin-bottom: 12px; }
.cta-banner p { font-size: 1.05rem; opacity: 0.9; margin-bottom: 28px; }
.btn-white { background: #fff; color: var(--green); font-weight: 700; }
.btn-white:hover { background: var(--green-light); }

/* ── FOOTER ── */
footer {
  background: #0f2318; color: rgba(255,255,255,0.8);
  padding: 48px 20px 24px;
}
.footer-inner {
  max-width: var(--max-w); margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 36px;
}
.footer-brand p { font-size: 0.9rem; margin-top: 12px; opacity: 0.7; max-width: 280px; }
.footer-brand .logo-text { font-size: 1.4rem; font-weight: 800; color: #fff; }
.footer-col h4 { font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: #fff; margin-bottom: 14px; }
.footer-col a { display: block; color: rgba(255,255,255,0.65); font-size: 0.9rem; margin-bottom: 8px; }
.footer-col a:hover { color: #fff; text-decoration: none; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.82rem; opacity: 0.55; flex-wrap: wrap; gap: 8px;
}

/* ── BREADCRUMB ── */
.breadcrumb { font-size: 0.82rem; color: var(--text-muted); padding: 10px 20px; max-width: 780px; margin: 0 auto; }
.breadcrumb a { color: var(--green); }
.breadcrumb span { margin: 0 6px; }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .hero-img { order: -1; }
  .hero-img img { max-height: 260px; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  nav { display: none; flex-direction: column; position: absolute; top: 76px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--border); padding: 16px 20px; gap: 16px;
    box-shadow: var(--shadow); }
  nav.open { display: flex; }
  .hamburger { display: flex; }
  .cards-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .features-grid { grid-template-columns: 1fr; }
}