/*
Theme Name: CalculatorWala Blog
Theme URI: https://calculatorwala.in
Author: CalculatorWala
Author URI: https://calculatorwala.in
Description: Official blog theme for CalculatorWala — matches the main site design (calculatorwala.in). Clean, fast, finance-focused, AdSense-ready.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: calculatorwala
*/

/* ===== Design tokens (match main site) ===== */
:root {
  --cw-blue: #2563eb;
  --cw-blue-dark: #1e40af;
  --cw-blue-50: #eff6ff;
  --cw-blue-100: #dbeafe;
  --cw-orange: #f97316;
  --cw-slate-900: #0f172a;
  --cw-slate-800: #1e293b;
  --cw-slate-700: #334155;
  --cw-slate-600: #475569;
  --cw-slate-500: #64748b;
  --cw-slate-400: #94a3b8;
  --cw-slate-200: #e2e8f0;
  --cw-slate-100: #f1f5f9;
  --cw-slate-50: #f8fafc;
  --cw-white: #ffffff;
}

/* ===== Reset / base ===== */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--cw-slate-50);
  color: var(--cw-slate-900);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  font-size: 16px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
a { color: var(--cw-blue); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }
::selection { background: var(--cw-blue-100); }

.cw-container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
  width: 100%;
}

/* ===== Header ===== */
.cw-header {
  background: var(--cw-white);
  border-bottom: 1px solid var(--cw-slate-200);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}
.cw-header-inner {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.cw-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--cw-blue);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
.cw-logo:hover { text-decoration: none; opacity: 0.85; }
.cw-logo svg { width: 32px; height: 32px; }
.cw-logo .accent { color: var(--cw-orange); }
.cw-tagline { font-size: 0.75rem; color: var(--cw-slate-500); font-weight: 500; }
@media (max-width: 640px) { .cw-tagline { display: none; } }

/* nav links in header */
.cw-nav { display: flex; gap: 1.25rem; align-items: center; }
.cw-nav a { color: var(--cw-slate-600); font-size: 0.875rem; font-weight: 500; }
.cw-nav a:hover { color: var(--cw-blue); text-decoration: none; }
@media (max-width: 880px) { .cw-nav { display: none; } }

/* ===== Layout ===== */
.cw-main {
  flex: 1;
  padding: 2rem 0 3rem;
  width: 100%;
}
.cw-layout {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}
.cw-content { flex: 1; min-width: 0; }
.cw-sidebar { width: 300px; flex-shrink: 0; }
@media (max-width: 980px) {
  .cw-layout { flex-direction: column; }
  .cw-sidebar { width: 100%; }
}

/* ===== Cards ===== */
.cw-card {
  background: var(--cw-white);
  border: 1px solid var(--cw-slate-100);
  border-radius: 1rem;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
  padding: 1.5rem;
}

/* ===== Hero ===== */
.cw-hero {
  background: linear-gradient(to right, var(--cw-blue), var(--cw-blue-dark));
  color: var(--cw-white);
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
  margin-bottom: 2rem;
}
.cw-hero h1 { margin: 0 0 0.75rem; font-size: 1.875rem; font-weight: 700; }
.cw-hero p { margin: 0; color: var(--cw-blue-100); max-width: 42rem; }

/* ===== Post list (blog index) ===== */
.cw-post-grid { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }
@media (min-width: 640px) { .cw-post-grid { grid-template-columns: 1fr 1fr; } }

.cw-post-card {
  background: var(--cw-white);
  border: 1px solid var(--cw-slate-200);
  border-radius: 1rem;
  overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
  display: flex;
  flex-direction: column;
}
.cw-post-card:hover {
  border-color: var(--cw-blue);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
.cw-post-thumb { aspect-ratio: 16/9; width: 100%; object-fit: cover; background: var(--cw-slate-100); }
.cw-post-thumb-placeholder {
  aspect-ratio: 16/9; width: 100%;
  background: linear-gradient(135deg, var(--cw-blue-50), var(--cw-slate-100));
  display: flex; align-items: center; justify-content: center;
}
.cw-post-thumb-placeholder svg { width: 48px; height: 48px; color: var(--cw-blue); opacity: 0.4; }
.cw-post-body { padding: 1.25rem; display: flex; flex-direction: column; flex: 1; }
.cw-post-cat {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--cw-blue);
  margin-bottom: 0.5rem;
}
.cw-post-card h2 { margin: 0 0 0.5rem; font-size: 1.125rem; line-height: 1.35; }
.cw-post-card h2 a { color: var(--cw-slate-800); }
.cw-post-card h2 a:hover { color: var(--cw-blue); text-decoration: none; }
.cw-post-excerpt { color: var(--cw-slate-500); font-size: 0.875rem; margin: 0 0 1rem; flex: 1; }
.cw-post-meta { font-size: 0.75rem; color: var(--cw-slate-400); display: flex; gap: 0.75rem; align-items: center; }
.cw-readmore { color: var(--cw-blue); font-weight: 600; font-size: 0.8rem; }

/* ===== Single post ===== */
.cw-article { }
.cw-article-header { margin-bottom: 1.5rem; }
.cw-breadcrumb { font-size: 0.8rem; color: var(--cw-slate-500); margin-bottom: 1rem; }
.cw-breadcrumb a { color: var(--cw-slate-500); }
.cw-breadcrumb a:hover { color: var(--cw-blue); }
.cw-article h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 0.75rem; color: var(--cw-slate-900); font-weight: 800; }
.cw-article-meta { font-size: 0.85rem; color: var(--cw-slate-500); display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; }
.cw-featured { width: 100%; border-radius: 1rem; margin: 1.5rem 0; }

/* article typography */
.cw-prose { color: var(--cw-slate-700); font-size: 1.05rem; line-height: 1.75; }
.cw-prose p { margin: 0 0 1.25rem; }
.cw-prose h2 { font-size: 1.5rem; font-weight: 700; color: var(--cw-slate-800); margin: 2rem 0 1rem; }
.cw-prose h3 { font-size: 1.25rem; font-weight: 700; color: var(--cw-slate-800); margin: 1.5rem 0 0.75rem; }
.cw-prose ul, .cw-prose ol { margin: 0 0 1.25rem; padding-left: 1.5rem; }
.cw-prose li { margin-bottom: 0.5rem; }
.cw-prose a { color: var(--cw-blue); font-weight: 500; text-decoration: underline; }
.cw-prose img { border-radius: 0.75rem; margin: 1.5rem 0; }
.cw-prose blockquote {
  border-left: 4px solid var(--cw-blue);
  background: var(--cw-blue-50);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  border-radius: 0 0.5rem 0.5rem 0;
  color: var(--cw-slate-700);
}
.cw-prose code {
  background: var(--cw-slate-100);
  padding: 0.15rem 0.4rem;
  border-radius: 0.3rem;
  font-size: 0.9em;
}
.cw-prose table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 0.95rem; }
.cw-prose th, .cw-prose td { border: 1px solid var(--cw-slate-200); padding: 0.6rem 0.8rem; text-align: left; }
.cw-prose th { background: var(--cw-slate-100); font-weight: 600; }

/* ===== CTA box (link to calculators) ===== */
.cw-cta {
  background: var(--cw-blue-50);
  border: 1px solid var(--cw-blue-100);
  border-radius: 1rem;
  padding: 1.5rem;
  margin: 2rem 0;
}
.cw-cta h3 { margin: 0 0 0.5rem; color: var(--cw-slate-800); font-size: 1.1rem; }
.cw-cta p { margin: 0 0 1rem; color: var(--cw-slate-600); font-size: 0.9rem; }
.cw-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--cw-blue);
  color: var(--cw-white);
  padding: 0.65rem 1.25rem;
  border-radius: 0.6rem;
  font-weight: 600;
  font-size: 0.9rem;
}
.cw-btn:hover { background: var(--cw-blue-dark); text-decoration: none; color: #fff; }

/* ===== Sidebar widgets ===== */
.cw-widget {
  background: var(--cw-white);
  border: 1px solid var(--cw-slate-100);
  border-radius: 1rem;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}
.cw-widget-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--cw-slate-400);
  margin: 0 0 1rem;
}
.cw-widget ul { list-style: none; margin: 0; padding: 0; }
.cw-widget li { margin-bottom: 0.6rem; }
.cw-widget a { color: var(--cw-slate-600); font-size: 0.9rem; display: flex; align-items: center; gap: 0.5rem; }
.cw-widget a:hover { color: var(--cw-blue); text-decoration: none; }
.cw-widget a svg { width: 16px; height: 16px; color: var(--cw-slate-400); flex-shrink: 0; }

/* ===== Pagination ===== */
.cw-pagination { display: flex; gap: 0.5rem; justify-content: center; margin-top: 2.5rem; flex-wrap: wrap; }
.cw-pagination a, .cw-pagination span {
  padding: 0.5rem 0.9rem;
  border-radius: 0.5rem;
  border: 1px solid var(--cw-slate-200);
  background: var(--cw-white);
  color: var(--cw-slate-600);
  font-size: 0.9rem;
  font-weight: 500;
}
.cw-pagination a:hover { border-color: var(--cw-blue); color: var(--cw-blue); text-decoration: none; }
.cw-pagination .current { background: var(--cw-blue); color: #fff; border-color: var(--cw-blue-dark); }

/* ===== Footer (matches main site) ===== */
.cw-footer {
  background: var(--cw-slate-900);
  color: var(--cw-slate-400);
  padding: 3rem 0;
  margin-top: 3rem;
  border-top: 1px solid var(--cw-slate-800);
}
.cw-footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  font-size: 0.875rem;
}
@media (min-width: 768px) { .cw-footer-grid { grid-template-columns: 2fr 1fr 1fr; } }
.cw-footer-brand { display: flex; align-items: center; gap: 0.5rem; color: #fff; margin-bottom: 1rem; font-size: 1.1rem; font-weight: 700; }
.cw-footer-brand svg { width: 24px; height: 24px; }
.cw-footer h3 {
  color: #fff;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.75rem;
  margin: 0 0 1rem;
}
.cw-footer ul { list-style: none; margin: 0; padding: 0; }
.cw-footer li { margin-bottom: 0.75rem; }
.cw-footer a { color: var(--cw-slate-400); display: flex; align-items: center; gap: 0.5rem; }
.cw-footer a:hover { color: #fff; text-decoration: none; }
.cw-footer a svg { width: 16px; height: 16px; }
.cw-footer-copy { margin-top: 1rem; color: var(--cw-slate-500); }

/* ===== Ad slots ===== */
.cw-ad { margin: 2rem 0; text-align: center; min-height: 90px; }
.cw-ad-label { font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--cw-slate-400); margin-bottom: 0.25rem; }

/* ===== 404 / search ===== */
.cw-center { text-align: center; padding: 3rem 1rem; }
.cw-center h1 { font-size: 3rem; margin: 0 0 0.5rem; color: var(--cw-blue); }