/* ============================================================
   BestPickrGuide — Main Stylesheet
   Mobile-first, lightweight, no dependencies
   ============================================================ */

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --green:      #059669;
  --green-dark: #047857;
  --green-light:#d1fae5;
  --blue:       #2563eb;
  --blue-light: #eff6ff;
  --orange:     #ea580c;
  --gray-50:    #f9fafb;
  --gray-100:   #f3f4f6;
  --gray-200:   #e5e7eb;
  --gray-300:   #d1d5db;
  --gray-500:   #6b7280;
  --gray-700:   #374151;
  --gray-900:   #111827;
  --white:      #ffffff;
  --radius:     8px;
  --radius-lg:  12px;
  --shadow:     0 1px 3px rgba(0,0,0,.10), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:  0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg:  0 10px 15px rgba(0,0,0,.08), 0 4px 6px rgba(0,0,0,.05);
  --font:       'Inter', system-ui, -apple-system, sans-serif;
  --max-w:      1180px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-700);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

/* ── Layout ── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 16px; }
@media (min-width: 640px)  { .container { padding: 0 24px; } }
@media (min-width: 1024px) { .container { padding: 0 32px; } }

.section { padding: 56px 0; }
.section--gray { background: var(--gray-50); }
.section--dark { background: var(--gray-900); color: var(--white); }

/* ── Typography ── */
h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); font-weight: 800; line-height: 1.15; color: var(--gray-900); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem);     font-weight: 700; line-height: 1.25; color: var(--gray-900); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem);   font-weight: 600; line-height: 1.3;  color: var(--gray-900); }
h4 { font-size: 1rem;  font-weight: 600; color: var(--gray-900); }
p  { margin-bottom: 1rem; }

.section-title { text-align: center; margin-bottom: 8px; }
.section-sub   { text-align: center; color: var(--gray-500); margin-bottom: 40px; font-size: 1.05rem; }

.text-green  { color: var(--green); }
.text-orange { color: var(--orange); }
.text-gray   { color: var(--gray-500); }
.text-sm     { font-size: .875rem; }
.text-xs     { font-size: .75rem; }
.font-bold   { font-weight: 700; }
.text-center { text-align: center; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 22px; border-radius: var(--radius); font-weight: 600;
  font-size: .95rem; cursor: pointer; border: none; transition: all .15s;
  text-decoration: none; white-space: nowrap;
}
.btn-primary   { background: var(--green); color: var(--white); }
.btn-primary:hover   { background: var(--green-dark); text-decoration: none; color: var(--white); }
.btn-secondary { background: var(--blue); color: var(--white); }
.btn-secondary:hover { background: #1d4ed8; text-decoration: none; color: var(--white); }
.btn-outline   { background: transparent; color: var(--green); border: 2px solid var(--green); }
.btn-outline:hover   { background: var(--green-light); text-decoration: none; }
.btn-orange    { background: var(--orange); color: var(--white); }
.btn-orange:hover    { background: #c2410c; text-decoration: none; color: var(--white); }
.btn-lg  { padding: 14px 30px; font-size: 1.05rem; }
.btn-sm  { padding: 7px 14px;  font-size: .825rem; }
.btn-full { width: 100%; }

/* ── Header / Nav ── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--white); border-bottom: 1px solid var(--gray-200);
  box-shadow: var(--shadow);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; gap: 16px;
}
.logo {
  font-size: 1.3rem; font-weight: 800; color: var(--green);
  text-decoration: none; display: flex; align-items: center; gap: 6px;
  flex-shrink: 0;
}
.logo:hover { text-decoration: none; color: var(--green-dark); }
.logo-icon { font-size: 1.5rem; }

.nav-links { display: none; list-style: none; gap: 4px; }
@media (min-width: 768px) { .nav-links { display: flex; } }
.nav-links a {
  display: block; padding: 6px 12px; color: var(--gray-700);
  font-weight: 500; font-size: .9rem; border-radius: var(--radius);
  transition: background .12s;
}
.nav-links a:hover { background: var(--gray-100); text-decoration: none; color: var(--gray-900); }

.nav-cta { display: none; }
@media (min-width: 900px) { .nav-cta { display: flex; } }

/* Mobile menu */
.hamburger {
  display: flex; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 6px;
}
@media (min-width: 768px) { .hamburger { display: none; } }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--gray-700); border-radius: 2px; transition: .2s; }
.mobile-menu {
  display: none; position: fixed; inset: 0; z-index: 200;
  background: var(--white); padding: 20px 16px; overflow-y: auto;
}
.mobile-menu.open { display: block; }
.mobile-menu-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.mobile-close { background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--gray-700); }
.mobile-menu nav a {
  display: block; padding: 14px 0; font-size: 1.05rem; font-weight: 500;
  color: var(--gray-700); border-bottom: 1px solid var(--gray-200);
}

/* ── Hero badges ── */
.hero-badges { display: flex; flex-wrap: wrap; gap: 8px; }
.badge {
  background: rgba(255,255,255,.15); color: var(--white);
  padding: 4px 12px; border-radius: 99px; font-size: .8rem; font-weight: 500;
}

/* ── Cards ── */
.bike-card {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow); transition: box-shadow .15s, transform .15s;
  position: relative;
}
.bike-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.bike-card-brand { font-size: .78rem; font-weight: 600; color: var(--green); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 4px; }
.bike-card-name  { font-size: 1.1rem; font-weight: 700; color: var(--gray-900); margin-bottom: 8px; }

.stars { color: #f59e0b; font-size: .9rem; }
.rating-row { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.rating-num { font-weight: 700; font-size: .95rem; }
.review-cnt { color: var(--gray-500); font-size: .82rem; }

.spec-pills { display: flex; flex-wrap: wrap; gap: 6px; }
.spec-pill { background: var(--gray-100); border-radius: 99px; padding: 3px 10px; font-size: .75rem; font-weight: 500; color: var(--gray-700); }
.spec-pill strong { color: var(--gray-900); }

.price-row { display: flex; align-items: baseline; gap: 8px; }
.price     { font-size: 1.4rem; font-weight: 800; color: var(--gray-900); }
.price-save { font-size: .8rem; color: var(--green); font-weight: 600; }

/* ── Table ── */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
.compare-table { width: 100%; border-collapse: collapse; background: var(--white); font-size: .9rem; }
.compare-table thead { background: var(--gray-900); color: var(--white); }
.compare-table th { padding: 14px 16px; text-align: left; font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; white-space: nowrap; }
.compare-table th.sortable { cursor: pointer; user-select: none; }
.compare-table th.sortable:hover { background: var(--gray-700); }
.compare-table th .sort-icon { opacity: .5; font-size: .7rem; }
.compare-table tbody tr { border-bottom: 1px solid var(--gray-200); transition: background .1s; }
.compare-table tbody tr:hover { background: var(--gray-50); }
.compare-table tbody tr:last-child { border-bottom: none; }
.compare-table td { padding: 16px; vertical-align: middle; }
.table-bike-name { font-weight: 700; color: var(--gray-900); }
.table-bike-brand { font-size: .75rem; color: var(--gray-500); }
.table-price { font-weight: 700; font-size: 1.05rem; }
.score-bar-wrap { display: flex; align-items: center; gap: 8px; }
.score-bar { height: 8px; border-radius: 4px; background: var(--gray-200); flex: 1; min-width: 60px; overflow: hidden; }
.score-bar-fill { height: 100%; border-radius: 4px; background: linear-gradient(90deg, var(--green), #6ee7b7); transition: width .5s ease; }
.score-num { font-weight: 700; font-size: .85rem; min-width: 28px; }
.winner-badge { background: var(--green-light); color: var(--green-dark); font-size: .7rem; font-weight: 700; padding: 2px 8px; border-radius: 99px; }

/* ── Pros / Cons ── */
.pros-cons { display: grid; gap: 16px; }
@media (min-width: 640px) { .pros-cons { grid-template-columns: 1fr 1fr; } }
.pros-box, .cons-box { border-radius: var(--radius); padding: 20px; }
.pros-box { background: #f0fdf4; border: 1px solid #bbf7d0; }
.cons-box { background: #fff7ed; border: 1px solid #fed7aa; }
.pros-box h4 { color: var(--green); margin-bottom: 12px; }
.cons-box h4 { color: var(--orange); margin-bottom: 12px; }
.pros-box ul, .cons-box ul { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.pros-box li::before { content: "✓ "; color: var(--green); font-weight: 700; }
.cons-box li::before { content: "✗ "; color: var(--orange); font-weight: 700; }

/* ── FAQ ── */
.faq-list { display: flex; flex-direction: column; border: 1px solid var(--gray-200); border-radius: var(--radius-lg); overflow: hidden; }
.faq-item { border-bottom: 1px solid var(--gray-200); }
.faq-item:last-child { border-bottom: none; }
.faq-q { width: 100%; text-align: left; padding: 18px 20px; background: var(--white); border: none; cursor: pointer; font-size: 1rem; font-weight: 600; color: var(--gray-900); display: flex; justify-content: space-between; align-items: center; gap: 12px; transition: background .12s; }
.faq-q:hover { background: var(--gray-50); }
.faq-icon { font-size: 1.2rem; flex-shrink: 0; transition: transform .2s; color: var(--green); }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-a { display: none; padding: 0 20px 18px; color: var(--gray-700); line-height: 1.7; }
.faq-item.open .faq-a { display: block; }

/* ── Breadcrumb ── */
.breadcrumb-list { display: flex; flex-wrap: wrap; gap: 4px; list-style: none; font-size: .85rem; color: var(--gray-500); }
.breadcrumb-list li + li::before { content: "/"; margin-right: 4px; }
.breadcrumb-list a { color: var(--green); }

/* ── Callout ── */
.callout { border-radius: var(--radius); padding: 16px 20px; margin: 20px 0; display: flex; gap: 12px; align-items: flex-start; }
.callout-green { background: var(--green-light); border-left: 4px solid var(--green); }
.callout-blue  { background: var(--blue-light);  border-left: 4px solid var(--blue); }
.callout-icon  { font-size: 1.2rem; flex-shrink: 0; margin-top: 2px; }
.callout p     { margin: 0; font-size: .9rem; }

/* ── Top Pick ── */
.top-pick { border: 2px solid var(--green); border-radius: var(--radius-lg); position: relative; overflow: visible !important; }
.top-pick-label {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--green); color: var(--white);
  padding: 3px 16px; border-radius: 99px; font-size: .78rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .05em; white-space: nowrap; pointer-events: none;
}

/* ── Footer ── */
.site-footer { background: var(--gray-900); color: var(--gray-300); padding: 56px 0 24px; }
.footer-grid { display: grid; gap: 32px; grid-template-columns: 1fr; margin-bottom: 40px; }
@media (min-width: 640px)  { .footer-grid { grid-template-columns: 2fr 1fr 1fr; } }
@media (min-width: 768px)  { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.footer-brand .logo { color: #6ee7b7; margin-bottom: 12px; }
.footer-brand p { font-size: .875rem; line-height: 1.7; opacity: .75; }
.footer-col h4 { color: var(--white); font-size: .85rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 16px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-col a { color: var(--gray-300); font-size: .875rem; transition: color .12s; }
.footer-col a:hover { color: var(--white); text-decoration: none; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 24px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: .8rem; opacity: .6; }

/* ── Utilities ── */
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-16 { margin-bottom: 16px; }
.mb-32 { margin-bottom: 32px; }
.grid-2 { display: grid; gap: 24px; }
@media (min-width: 640px) { .grid-2 { grid-template-columns: 1fr 1fr; } }
.hide-mobile { display: table-cell; }
@media (max-width: 639px) { .hide-mobile { display: none !important; } .section { padding: 40px 0; } }
@media print { .site-header, .site-footer, .btn { display: none !important; } }