/* ===========================
   QR FORGE — Main Stylesheet
   =========================== */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&family=Syne:wght@400;500;600;700;800&display=swap');

:root {
  --black:    #0a0a0a;
  --white:    #ffffff;
  --off:      #f5f4f1;
  --gray-100: #f0eeeb;
  --gray-200: #e2dfda;
  --gray-400: #a09d97;
  --gray-600: #6b6762;
  --gray-800: #2e2c29;
  --green:    #22c55e;
  --green-dim:#16a34a;
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  32px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.05);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.10), 0 4px 12px rgba(0,0,0,.06);
  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;
  --transition: 200ms cubic-bezier(.4,0,.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-body); background: var(--white); color: var(--black); font-size: 16px; line-height: 1.6; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { width: 100%; max-width: 1120px; margin-inline: auto; padding-inline: 24px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* =====================================================
   MONETIZATION AD SLOTS
   Replace placeholder content with your actual
   Google AdSense or Monetag ad codes
   ===================================================== */
.ad-slot {
  width: 100%; text-align: center; padding: 12px 0;
  min-height: 90px; background: var(--gray-100);
  border-radius: var(--radius-md); display: flex;
  align-items: center; justify-content: center;
  font-size: 11px; color: var(--gray-400);
  letter-spacing: .05em; text-transform: uppercase; margin-block: 24px;
}
.ad-slot--rectangle { min-height: 250px; max-width: 300px; }

.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.9); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--gray-200); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 1.2rem; letter-spacing: -.02em; }
.logo-mark { width: 32px; height: 32px; background: var(--black); border-radius: 8px; display: grid; place-items: center; }
.logo-mark svg { width: 18px; height: 18px; fill: white; }
.site-nav { display: flex; align-items: center; gap: 8px; }
.site-nav a { font-size: .875rem; font-weight: 500; padding: 6px 12px; border-radius: var(--radius-sm); color: var(--gray-600); transition: color var(--transition), background var(--transition); }
.site-nav a:hover { color: var(--black); background: var(--gray-100); }

.btn { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-body); font-weight: 500; font-size: .875rem; padding: 9px 18px; border-radius: var(--radius-md); cursor: pointer; border: none; transition: all var(--transition); white-space: nowrap; }
.btn-primary { background: var(--black); color: var(--white); }
.btn-primary:hover { background: var(--gray-800); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; color: var(--black); border: 1.5px solid var(--gray-200); }
.btn-outline:hover { border-color: var(--black); background: var(--gray-100); }
.btn-lg { font-size: 1rem; padding: 13px 28px; border-radius: var(--radius-lg); }
.btn-green { background: var(--green); color: white; }
.btn-green:hover { background: var(--green-dim); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(34,197,94,.3); }

.hero { padding: 80px 0 64px; text-align: center; background: linear-gradient(180deg, var(--off) 0%, var(--white) 100%); }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 6px; font-size: .78rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--gray-600); background: var(--gray-200); padding: 5px 12px; border-radius: 999px; margin-bottom: 24px; }
.hero h1 { font-family: var(--font-display); font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 800; line-height: 1.1; letter-spacing: -.04em; color: var(--black); max-width: 720px; margin-inline: auto; margin-bottom: 20px; }
.hero h1 em { font-style: normal; position: relative; display: inline-block; }
.hero h1 em::after { content: ''; position: absolute; bottom: 2px; left: 0; right: 0; height: 4px; background: var(--green); border-radius: 2px; opacity: .6; }
.hero-sub { font-size: 1.1rem; color: var(--gray-600); max-width: 480px; margin-inline: auto; margin-bottom: 48px; font-weight: 300; }

.generator-card { background: var(--white); border: 1.5px solid var(--gray-200); border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); padding: 40px; max-width: 560px; margin-inline: auto; }
.input-row { display: flex; gap: 10px; margin-bottom: 20px; }
.url-input { flex: 1; font-family: var(--font-body); font-size: .95rem; padding: 12px 16px; border: 1.5px solid var(--gray-200); border-radius: var(--radius-md); background: var(--off); color: var(--black); outline: none; transition: border-color var(--transition), box-shadow var(--transition); }
.url-input:focus { border-color: var(--black); box-shadow: 0 0 0 3px rgba(10,10,10,.08); background: var(--white); }
.url-input::placeholder { color: var(--gray-400); }
.size-row { display: flex; align-items: center; gap: 10px; margin-bottom: 24px; flex-wrap: wrap; }
.size-row label { font-size: .8rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--gray-600); }
.size-btn { font-size: .8rem; font-weight: 500; padding: 5px 12px; border-radius: var(--radius-sm); border: 1.5px solid var(--gray-200); background: transparent; cursor: pointer; color: var(--gray-600); transition: all var(--transition); }
.size-btn.active, .size-btn:hover { border-color: var(--black); color: var(--black); background: var(--off); }
.qr-display { display: flex; flex-direction: column; align-items: center; gap: 24px; }
.qr-canvas-wrap { width: 100%; max-width: 300px; height: auto; aspect-ratio: 1 / 1; border-radius: var(--radius-lg); overflow: hidden; border: 1.5px solid var(--gray-200); display: flex; align-items: center; justify-content: center; background: var(--off); transition: box-shadow var(--transition); }
.qr-canvas-wrap canvas {width: 100% !important; height: auto !important; display: block; image-rendering: pixelated;}
.qr-placeholder { display: flex; flex-direction: column; align-items: center; gap: 12px; color: var(--gray-400); font-size: .85rem; text-align: center; padding: 16px; }
.qr-placeholder svg { width: 48px; height: 48px; opacity: .3; }
#qr-canvas { display: none; }
#qr-canvas.visible { display: block; }
.qr-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.ad-banner-wrap { max-width: 728px; margin: 32px auto 0; }

.features { padding: 96px 0; }
.section-label { font-size: .78rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--gray-400); margin-bottom: 16px; }
.section-title { font-family: var(--font-display); font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 700; letter-spacing: -.03em; line-height: 1.15; margin-bottom: 16px; }
.section-sub { font-size: 1.05rem; color: var(--gray-600); max-width: 480px; font-weight: 300; }
.features-header { margin-bottom: 56px; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.feature-card { padding: 28px; border: 1.5px solid var(--gray-200); border-radius: var(--radius-lg); background: var(--white); transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition); }
.feature-card:hover { border-color: var(--gray-800); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.feature-icon { width: 44px; height: 44px; background: var(--off); border-radius: var(--radius-md); display: grid; place-items: center; margin-bottom: 16px; }
.feature-icon svg { width: 22px; height: 22px; }
.feature-card h3 { font-family: var(--font-display); font-size: 1rem; font-weight: 600; margin-bottom: 8px; }
.feature-card p { font-size: .9rem; color: var(--gray-600); line-height: 1.6; }

.how-it-works { padding: 96px 0; background: var(--off); border-radius: var(--radius-xl); margin-inline: 24px; }
.how-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 32px; margin-top: 56px; }
.how-step { text-align: center; padding: 0 16px; }
.step-num { width: 48px; height: 48px; background: var(--black); color: var(--white); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; margin: 0 auto 20px; }
.how-step h3 { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; margin-bottom: 10px; }
.how-step p { font-size: .9rem; color: var(--gray-600); }

.blog-preview { padding: 96px 0; }
.blog-header { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 48px; flex-wrap: wrap; gap: 16px; }
.blog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.blog-card { border: 1.5px solid var(--gray-200); border-radius: var(--radius-lg); overflow: hidden; transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition); }
.blog-card:hover { border-color: var(--gray-800); transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.blog-card-img { height: 160px; background: var(--gray-100); display: flex; align-items: center; justify-content: center; }
.blog-card-img svg { width: 48px; height: 48px; opacity: .15; }
.blog-card-body { padding: 24px; }
.blog-tag { display: inline-block; font-size: .72rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--gray-600); background: var(--gray-100); padding: 3px 10px; border-radius: 999px; margin-bottom: 12px; }
.blog-card h3 { font-family: var(--font-display); font-size: 1.05rem; font-weight: 600; line-height: 1.3; margin-bottom: 10px; letter-spacing: -.02em; }
.blog-card p { font-size: .875rem; color: var(--gray-600); line-height: 1.6; margin-bottom: 16px; }
.read-more { font-size: .825rem; font-weight: 600; color: var(--black); display: inline-flex; align-items: center; gap: 4px; transition: gap var(--transition); }
.read-more:hover { gap: 8px; }

.site-footer { background: var(--black); color: var(--white); padding: 64px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand .logo { color: white; margin-bottom: 16px; }
.footer-brand .logo-mark { background: rgba(255,255,255,.1); }
.footer-brand p { font-size: .875rem; color: rgba(255,255,255,.5); line-height: 1.7; max-width: 260px; }
.footer-col h4 { font-family: var(--font-display); font-size: .8rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: rgba(255,255,255,.4); margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: .875rem; color: rgba(255,255,255,.6); transition: color var(--transition); }
.footer-col a:hover { color: white; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 24px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { font-size: .8rem; color: rgba(255,255,255,.3); }

.article-hero { background: var(--off); padding: 64px 0 48px; border-bottom: 1px solid var(--gray-200); }
.article-breadcrumb { font-size: .8rem; color: var(--gray-400); margin-bottom: 20px; display: flex; gap: 8px; align-items: center; }
.article-breadcrumb a { color: var(--gray-600); }
.article-tag { display: inline-block; font-size: .72rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--gray-600); background: var(--gray-200); padding: 4px 12px; border-radius: 999px; margin-bottom: 20px; }
.article-hero h1 { font-family: var(--font-display); font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 800; letter-spacing: -.04em; line-height: 1.1; margin-bottom: 20px; max-width: 760px; }
.article-meta { display: flex; gap: 20px; font-size: .85rem; color: var(--gray-400); flex-wrap: wrap; }
.article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 48px; padding: 56px 0 80px; align-items: start; }
.article-body h2 { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; letter-spacing: -.03em; margin: 40px 0 16px; }
.article-body h3 { font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; letter-spacing: -.02em; margin: 28px 0 12px; }
.article-body p { margin-bottom: 18px; font-size: 1rem; line-height: 1.8; color: var(--gray-800); }
.article-body ul, .article-body ol { margin: 0 0 18px 24px; display: flex; flex-direction: column; gap: 8px; }
.article-body li { font-size: 1rem; line-height: 1.7; color: var(--gray-800); }
.article-body ul li { list-style: disc; }
.article-body ol li { list-style: decimal; }
.article-body strong { font-weight: 600; color: var(--black); }
.article-body a { color: var(--black); text-decoration: underline; text-underline-offset: 3px; }
.article-cta { background: var(--off); border: 1.5px solid var(--gray-200); border-radius: var(--radius-lg); padding: 28px; margin: 40px 0; text-align: center; }
.article-cta h3 { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; }
.article-cta p { color: var(--gray-600); margin-bottom: 16px; font-size: .9rem; }
.article-sidebar { position: sticky; top: 80px; }
.sidebar-widget { border: 1.5px solid var(--gray-200); border-radius: var(--radius-lg); padding: 24px; margin-bottom: 24px; }
.sidebar-widget h4 { font-family: var(--font-display); font-size: .9rem; font-weight: 700; margin-bottom: 16px; }
.sidebar-links { display: flex; flex-direction: column; gap: 10px; }
.sidebar-links a { font-size: .875rem; color: var(--gray-600); transition: color var(--transition); }
.sidebar-links a:hover { color: var(--black); }

.blog-index-hero { padding: 64px 0; text-align: center; background: var(--off); }
.blog-index-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 28px; padding: 64px 0 96px; }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--black); border-radius: 2px; transition: all var(--transition); margin: 4px 0; }

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
}
@media (max-width: 640px) {
  .site-nav { display: none; }
  .nav-toggle { display: block; }
  .site-nav.open { display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--white); border-bottom: 1px solid var(--gray-200); padding: 12px 24px; z-index: 99; }
  .generator-card { padding: 24px 20px; }
  .input-row { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .how-it-works { margin-inline: 0; border-radius: 0; }
  .blog-header { flex-direction: column; align-items: flex-start; }
}

@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.fade-up { animation: fadeUp .5s ease forwards; }
.fade-up-2 { animation: fadeUp .5s .1s ease both; }
.fade-up-3 { animation: fadeUp .5s .2s ease both; }
.fade-up-4 { animation: fadeUp .5s .3s ease both; }
@keyframes spin { to { transform: rotate(360deg); } }
.qr-loading { width: 28px; height: 28px; border: 2.5px solid var(--gray-200); border-top-color: var(--black); border-radius: 50%; animation: spin .6s linear infinite; }