/* ==========================================================
   DRONE STARTER GUIDE — Design System v2
   Premium dark-mode layout inspired by Tom's Guide,
   Wirecutter, and modern tech review publications.
   ========================================================== */

/* ── DESIGN TOKENS ──────────────────────────────────────── */
:root {
  /* Background layers — depth system */
  --bg:        #04080f;
  --bg2:       #060d18;
  --surface:   #081422;
  --surface2:  #0c1c30;
  --surface3:  #10243e;
  --lift:      rgba(255,255,255,.055);
  --lift2:     rgba(255,255,255,.04);

  /* Text */
  --text:      #e8f4ff;
  --muted:     #7da5c4;
  --faint:     #3d6480;

  /* Border */
  --line:      rgba(110,175,230,.16);
  --line2:     rgba(110,175,230,.26);
  --line3:     rgba(110,175,230,.42);

  /* Brand colors */
  --blue:      #1aabff;
  --blue2:     #62d4ff;
  --blue3:     #b6e9ff;
  --blue-glow: rgba(26,171,255,.22);
  --orange:    #ff9c35;
  --orange2:   #ffb961;
  --green:     #34d88c;
  --red:       #ff5f5f;

  /* Shadows */
  --shadow-xs: 0 2px 10px rgba(0,0,0,.22);
  --shadow-sm: 0 4px 22px rgba(0,0,0,.28);
  --shadow:    0 12px 48px rgba(0,0,0,.38);
  --shadow-lg: 0 28px 80px rgba(0,0,0,.5);
  --shadow-blue: 0 8px 30px rgba(26,171,255,.22);

  /* Geometry */
  --radius-xs: 10px;
  --radius-sm: 14px;
  --radius:    20px;
  --radius-lg: 26px;
  --radius-xl: 32px;
  --max:       1160px;

  /* Motion */
  --ease:      cubic-bezier(.4,0,.2,1);
  --t:         .18s;
}

/* ── RESET & BASE ───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0 }

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', system-ui, sans-serif;
  background: var(--bg2);
  background-image:
    radial-gradient(ellipse 90% 60% at 50% -10%, rgba(26,171,255,.12), transparent),
    linear-gradient(180deg, var(--bg) 0%, var(--bg2) 50%, #050e1a 100%);
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.65;
  font-size: 1rem;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none }
img { display: block; max-width: 100%; height: auto }
button { cursor: pointer; font-family: inherit }

/* ── UTILITIES ──────────────────────────────────────────── */
.container { width: min(var(--max), calc(100% - 40px)); margin-inline: auto }
.narrow    { max-width: 800px }
.skip-link { position: absolute; left: -999px; top: 8px; background: #fff; color: #000; padding: 10px 14px; z-index: 999; border-radius: var(--radius-sm); font-weight: 700 }
.skip-link:focus { left: 8px }

/* ── TYPOGRAPHY ─────────────────────────────────────────── */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .18em;
  color: var(--blue2);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: '';
  display: block;
  width: 18px;
  height: 2px;
  background: var(--blue);
  border-radius: 99px;
  flex-shrink: 0;
}

h1, h2, h3, h4 { line-height: 1.05; letter-spacing: -.04em; color: var(--text) }

.lead {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--muted);
  line-height: 1.7;
  max-width: 640px;
  margin-bottom: 28px;
}

/* ── NAVIGATION ─────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(4,8,15,.88);
  backdrop-filter: blur(22px) saturate(1.4);
  -webkit-backdrop-filter: blur(22px) saturate(1.4);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(26,171,255,.08);
}

.nav-shell {
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--blue) 0%, #0853e6 100%);
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 1.1rem;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 6px 20px rgba(26,171,255,.3), inset 0 1px 0 rgba(255,255,255,.2);
  letter-spacing: 0;
}

.brand strong { display: block; font-size: .95rem; line-height: 1.15; white-space: nowrap }
.brand em     { display: block; font-size: .71rem; font-style: normal; color: var(--muted); margin-top: 1px; white-space: nowrap }

.site-nav { display: flex; gap: 2px; align-items: center }

.nav-link {
  padding: 8px 13px;
  border-radius: 999px;
  font-weight: 700;
  font-size: .86rem;
  color: var(--muted);
  transition: color var(--t) var(--ease), background var(--t) var(--ease);
  position: relative;
  white-space: nowrap;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 13px;
  right: 13px;
  height: 2px;
  background: var(--blue);
  border-radius: 99px;
  transform: scaleX(0);
  transition: transform var(--t) var(--ease);
}

.nav-link:hover { color: var(--text); background: rgba(26,171,255,.09) }
.nav-link.active { color: #fff; background: rgba(26,171,255,.13) }
.nav-link.active::after { transform: scaleX(1) }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line2);
  border-radius: var(--radius-sm);
  padding: 8px;
  width: 42px;
  height: 42px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--text); border-radius: 99px; transition: transform var(--t) var(--ease), opacity var(--t) var(--ease) }

/* ── HERO — full bleed with image overlay ───────────────── */
.hero-full {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(4,8,15,.96) 40%, rgba(4,8,15,.55) 75%, rgba(4,8,15,.2) 100%),
    linear-gradient(180deg, rgba(4,8,15,.3) 0%, transparent 30%, transparent 60%, rgba(4,8,15,.7) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 100px 0 80px;
  max-width: 640px;
}

.hero-content h1 {
  font-size: clamp(2.8rem, 6.5vw, 5.4rem);
  line-height: .95;
  margin-bottom: 22px;
  letter-spacing: -.06em;
}

.hero-content h1 span {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue2) 60%, var(--blue3) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Standard page hero (non-full-bleed) */
.page-hero {
  padding: 80px 0 56px;
}

.page-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, .85fr);
  gap: 48px;
  align-items: center;
}

.page-hero h1 {
  font-size: clamp(2.2rem, 5vw, 4.4rem);
  line-height: .97;
  margin-bottom: 18px;
}

/* ── HERO ACTIONS & TRUST ───────────────────────────────── */
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 24px }

.trust-row { display: flex; gap: 20px; flex-wrap: wrap; margin-top: 4px }
.trust-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .79rem;
  color: var(--muted);
  font-weight: 600;
}
.trust-item::before { content: "✓"; color: var(--green); font-weight: 900; font-size: .85rem }

/* ── STAT BAR ───────────────────────────────────────────── */
.stat-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0;
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stat-item {
  flex: 1;
  text-align: center;
  padding: 20px 16px;
  border-right: 1px solid var(--line);
}
.stat-item:last-child { border-right: none }

.stat-num {
  display: block;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 900;
  color: var(--blue2);
  letter-spacing: -.06em;
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label { font-size: .76rem; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .1em }

/* ── BUTTONS ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 46px;
  padding: 11px 22px;
  border-radius: 999px;
  font-weight: 800;
  font-size: .9rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease), background var(--t) var(--ease);
  cursor: pointer;
}

.btn.primary {
  background: linear-gradient(135deg, var(--blue) 0%, #0a60f5 100%);
  color: #fff;
  border-color: rgba(26,171,255,.3);
  box-shadow: 0 8px 24px rgba(26,171,255,.24), inset 0 1px 0 rgba(255,255,255,.18);
}
.btn.primary:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(26,171,255,.36), inset 0 1px 0 rgba(255,255,255,.18) }

.btn.secondary {
  background: rgba(255,255,255,.07);
  color: var(--text);
  border-color: var(--line2);
}
.btn.secondary:hover { background: rgba(255,255,255,.12); transform: translateY(-1px) }

.amz-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 46px;
  padding: 11px 22px;
  border-radius: 999px;
  font-weight: 900;
  font-size: .9rem;
  background: linear-gradient(135deg, #ff9900 0%, #e07600 100%);
  color: #0d0d0d;
  box-shadow: 0 6px 20px rgba(255,153,0,.28);
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
}
.amz-btn::after { content: '→'; font-size: 1rem }
.amz-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(255,153,0,.4) }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--blue2);
  font-weight: 800;
  font-size: .9rem;
  margin-top: 14px;
  transition: color var(--t) var(--ease);
}
.text-link:hover { color: var(--blue3) }
.text-link::after { content: '→'; transition: transform var(--t) var(--ease) }
.text-link:hover::after { transform: translateX(3px) }

/* ── SECTIONS ───────────────────────────────────────────── */
.section { padding: 72px 0 }
.section-alt { background: rgba(255,255,255,.022) }
.section-dark { background: rgba(0,0,0,.18) }

.section-head { margin-bottom: 32px }
.section-head.narrow { text-align: center; margin-inline: auto; max-width: 660px }

.section-head h2 {
  font-size: clamp(1.9rem, 3.5vw, 3.2rem);
  line-height: 1.02;
  margin-bottom: 12px;
}

.section-head p { color: var(--muted); font-size: 1.05rem }

/* ── MEDIA CARD ─────────────────────────────────────────── */
.media-card {
  position: relative;
  border: 1px solid var(--line2);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.media-card img { width: 100%; height: 100%; object-fit: cover }
.media-card.tall { height: 420px }
.media-card.mid { height: 340px }
.media-card.short { height: 280px }

.page-hero .media-card { height: 340px }

/* ── GRIDS ──────────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px }

/* ── CARDS — base surface ───────────────────────────────── */
.card {
  border: 1px solid var(--line);
  border-top: 2px solid rgba(26,171,255,.28);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--surface2), var(--surface));
  box-shadow: var(--shadow-sm);
  padding: 24px;
  transition: border-color var(--t) var(--ease), transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
}
.card:hover { border-color: var(--line3); border-top-color: var(--blue); transform: translateY(-2px); box-shadow: var(--shadow) }
.card.featured { border-top-color: var(--blue); border-color: var(--line2) }

/* ── PATH CARDS (home category picker) ─────────────────── */
.path-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px }

.path-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  padding: 26px;
  min-height: 200px;
  border: 1px solid var(--line);
  border-top: 3px solid rgba(26,171,255,.35);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--surface2), var(--surface));
  box-shadow: var(--shadow-sm);
  transition: border-color var(--t) var(--ease), border-top-color var(--t) var(--ease), transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
}
.path-card:hover { border-top-color: var(--blue); border-color: var(--line3); transform: translateY(-3px); box-shadow: var(--shadow), var(--shadow-blue) }

.path-num {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: rgba(26,171,255,.14);
  color: var(--blue2);
  font-weight: 900;
  font-size: .85rem;
  margin-bottom: 20px;
  border: 1px solid rgba(26,171,255,.2);
}

.path-card h3 { font-size: 1.15rem; margin-bottom: 8px; letter-spacing: -.02em }
.path-card p  { color: var(--muted); font-size: .9rem; line-height: 1.55; margin: 0 }

/* ── INFO CARDS ─────────────────────────────────────────── */
.info-card {
  border: 1px solid var(--line);
  border-top: 2px solid rgba(26,171,255,.3);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--surface2), var(--surface));
  box-shadow: var(--shadow-sm);
  padding: 22px;
}
.info-card.featured { border-top-color: var(--blue) }
.card-kicker { display: block; font-size: .72rem; font-weight: 900; text-transform: uppercase; letter-spacing: .14em; color: var(--orange); margin-bottom: 8px }
.info-card h3, .info-card h2 { font-size: 1.1rem; margin-bottom: 8px; letter-spacing: -.02em }
.info-card p { color: var(--muted); margin: 0; font-size: .9rem; line-height: 1.55 }

/* ── STEP CARDS ─────────────────────────────────────────── */
.step-list { display: grid; gap: 16px; max-width: 940px }
.step-card {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 20px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--surface2), var(--surface));
  box-shadow: var(--shadow-sm);
  align-items: start;
}
.step-card > span {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: rgba(26,171,255,.14);
  color: var(--blue2);
  font-weight: 900;
  font-size: .9rem;
  border: 1px solid rgba(26,171,255,.22);
}
.step-card h2 { font-size: 1.15rem; margin-bottom: 8px; letter-spacing: -.02em }
.step-card p { color: var(--muted); margin: 0; font-size: .95rem; line-height: 1.6 }

/* ── NOTE PANEL ─────────────────────────────────────────── */
.note-panel {
  border: 1px solid var(--line2);
  border-left: 3px solid var(--blue);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(26,171,255,.06), var(--surface));
  padding: 28px 30px;
}
.note-panel h2 { font-size: clamp(1.3rem, 2.5vw, 2rem); margin-bottom: 12px }
.note-panel p  { color: var(--muted) }
.note-panel.quiet { opacity: .82 }

/* ── SOFT CALLOUT ───────────────────────────────────────── */
.soft-callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 32px 36px;
  border: 1px solid var(--line2);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--surface2), var(--surface));
  box-shadow: var(--shadow-sm);
}
.soft-callout h2 { font-size: clamp(1.5rem, 3vw, 2.4rem); margin-bottom: 10px }
.soft-callout p  { color: var(--muted) }

/* ── SPLIT LAYOUT ───────────────────────────────────────── */
.split-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .9fr);
  gap: 52px;
  align-items: center;
}
.split-grid h2 { font-size: clamp(1.8rem, 3vw, 2.9rem); margin-bottom: 14px }
.split-grid p  { color: var(--muted) }

.clean-list { padding-left: 18px; color: var(--muted); margin: 14px 0 22px }
.clean-list li { margin: 9px 0; line-height: 1.55 }

/* ── FAQ ────────────────────────────────────────────────── */
.faq-list { display: grid; gap: 10px; max-width: 900px }
.faq-list details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface2);
  padding: 0;
  overflow: hidden;
  transition: border-color var(--t) var(--ease);
}
.faq-list details[open] { border-color: var(--line3) }
.faq-list summary {
  font-weight: 800;
  cursor: pointer;
  padding: 18px 22px;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .98rem;
  gap: 12px;
}
.faq-list summary::after { content: '+'; color: var(--blue2); font-size: 1.2rem; font-weight: 300; flex-shrink: 0 }
.faq-list details[open] summary::after { content: '−' }
.faq-list details p { color: var(--muted); padding: 0 22px 18px; line-height: 1.7 }

/* ── LEGAL COPY ─────────────────────────────────────────── */
.legal-copy { max-width: 820px; color: var(--muted) }
.legal-copy h2 { font-size: 1.35rem; color: var(--text); margin: 28px 0 10px }
.legal-copy p  { line-height: 1.75; margin-bottom: 12px }

/* ── CHECKLIST PANELS ───────────────────────────────────── */
.checklist-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px }
.check-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface2);
  padding: 26px;
}
.check-panel h2 { font-size: 1.1rem; margin-bottom: 12px }

/* ── SITE MAP GRID (homepage nav) ───────────────────────── */
.site-map-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px }
.smc {
  display: block;
  text-decoration: none;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface2);
  transition: border-color var(--t) var(--ease), transform var(--t) var(--ease), background var(--t) var(--ease);
}
.smc:hover { border-color: var(--line3); transform: translateY(-2px); background: var(--surface3) }
.smc-num {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: rgba(26,171,255,.13);
  color: var(--blue2);
  font-weight: 900;
  font-size: .8rem;
  margin-bottom: 10px;
}
.smc h3 { font-size: .92rem; margin-bottom: 5px; letter-spacing: -.015em; color: var(--text) }
.smc p  { font-size: .8rem; color: var(--muted); line-height: 1.5; margin: 0 }

/* ── DIFFERENTIATION GRID ───────────────────────────────── */
.diff-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px }
.diff-item {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 12px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface2);
  align-items: start;
}
.diff-mark {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  font-weight: 900;
  font-size: .95rem;
  line-height: 1;
}
.diff-mark.yes { background: rgba(52,216,140,.14); color: var(--green) }
.diff-mark.no  { background: rgba(255,95,95,.12); color: var(--red) }
.diff-item h3  { font-size: .9rem; margin-bottom: 4px; letter-spacing: -.01em }
.diff-item p   { font-size: .83rem; color: var(--muted); line-height: 1.5; margin: 0 }

/* ── BLOG ───────────────────────────────────────────────── */
.blog-index-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr); gap: 18px; align-items: stretch }
.article-card {
  border: 1px solid var(--line);
  border-top: 2px solid rgba(26,171,255,.35);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--surface2), var(--surface));
  box-shadow: var(--shadow-sm);
  padding: 28px;
}
.article-card h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); line-height: 1.08; margin-bottom: 12px; letter-spacing: -.04em }
.article-card h2 a { color: inherit }
.article-card p { color: var(--muted); margin: 0 }
.blog-side-note { height: 100% }
.article-meta span {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(26,171,255,.09);
  color: var(--blue3);
  font-size: .78rem;
  font-weight: 800;
  padding: 6px 12px;
  margin: 4px 4px 4px 0;
}

/* ── ARTICLE PAGE ───────────────────────────────────────── */
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 28px; align-items: start }
.article-content {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface2);
  box-shadow: var(--shadow-sm);
  padding: clamp(24px, 4vw, 46px);
}
.article-content h2 { font-size: clamp(1.4rem, 2.5vw, 2rem); margin: 36px 0 12px; letter-spacing: -.035em }
.article-content h2:first-of-type { margin-top: 16px }
.article-content p { color: var(--muted); font-size: 1.01rem; line-height: 1.72; margin-bottom: 14px }
.intro-note {
  font-size: 1.1rem !important;
  color: var(--blue3) !important;
  border-left: 3px solid var(--blue);
  padding: 16px 0 16px 20px;
  background: rgba(26,171,255,.06);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-top: 0 !important;
}
.article-callout {
  border: 1px solid rgba(98,212,255,.32);
  border-radius: var(--radius);
  background: rgba(26,171,255,.07);
  padding: 22px 24px;
  margin: 20px 0;
}
.article-callout strong { display: block; font-size: 1.05rem; margin-bottom: 8px }
.article-callout p { color: var(--muted) }
.article-callout .text-link { display: flex; margin-top: 10px }
.article-list { display: grid; gap: 7px; margin-top: 12px; padding-left: 18px; color: var(--muted) }
.article-sidebar { display: grid; gap: 16px; position: sticky; top: 84px }

/* ── AFFILIATE / PRODUCT CARDS ──────────────────────────── */
.disclosure-bar {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(26,171,255,.06);
  border: 1px solid rgba(26,171,255,.2);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  font-size: .82rem;
  color: var(--muted);
  margin-bottom: 28px;
  line-height: 1.55;
}
.disclosure-bar::before { content: "ℹ"; color: var(--blue2); font-size: .95rem; flex-shrink: 0; margin-top: 1px }
.disclosure-bar a { color: var(--blue2) }

.rec-stack { display: grid; gap: 24px }

.rec-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--surface2), var(--surface));
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: box-shadow var(--t) var(--ease);
}
.rec-card.featured {
  border-color: rgba(26,171,255,.4);
  box-shadow: var(--shadow), 0 0 0 1px rgba(26,171,255,.15), inset 0 1px 0 rgba(26,171,255,.08);
}

.rec-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  align-items: stretch;
}

.rec-body { padding: clamp(24px, 4vw, 38px) }

.rec-photo { overflow: hidden; background: var(--surface) }
.rec-photo img { width: 100%; height: 100%; min-height: 260px; object-fit: cover }

.rec-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  padding: 5px 13px;
  font-size: .71rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-bottom: 14px;
}
.rec-badge.top     { background: linear-gradient(135deg, var(--blue), #0a5cfa); color: #fff; box-shadow: 0 4px 14px rgba(26,171,255,.3) }
.rec-badge.clips   { background: rgba(255,156,53,.18); color: var(--orange) }
.rec-badge.upgrade { background: rgba(98,212,255,.15); color: var(--blue2) }
.rec-badge.premium { background: rgba(160,100,255,.15); color: #c084fc }
.rec-badge.fpv     { background: rgba(255,95,95,.12); color: var(--red) }
.rec-badge.budget  { background: rgba(52,216,140,.14); color: var(--green) }

.rec-title { font-size: clamp(1.6rem, 2.8vw, 2.4rem); line-height: 1.02; margin-bottom: 10px; letter-spacing: -.05em }
.rec-subtitle {
  display: inline-flex;
  background: rgba(255,255,255,.07);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: .81rem;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 14px;
}

.spec-chips { display: flex; flex-wrap: wrap; gap: 7px; margin: 12px 0 18px }
.spec-chip {
  display: inline-flex;
  background: rgba(26,171,255,.1);
  border: 1px solid rgba(26,171,255,.22);
  border-radius: 999px;
  padding: 5px 11px;
  font-size: .77rem;
  color: var(--blue3);
  font-weight: 700;
}

.rec-desc { color: var(--muted); font-size: .97rem; line-height: 1.68; margin-bottom: 18px }
.rec-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center }
.price-note { font-size: .75rem; color: var(--faint); margin-top: 10px; font-style: italic; line-height: 1.5 }

/* ── ALSO-CONSIDER CARDS ────────────────────────────────── */
.also-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px }
.also-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  background: var(--surface2);
}
.also-card h3 { font-size: 1.05rem; margin-bottom: 8px; letter-spacing: -.02em }
.also-card p  { color: var(--muted); margin-bottom: 14px; font-size: .88rem; line-height: 1.6 }

/* ── QUICK PICKS (top summary) ──────────────────────────── */
.quick-picks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 36px }
.qp-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  background: var(--surface2);
  text-align: center;
}
.qp-card .qp-label { font-size: .7rem; font-weight: 900; text-transform: uppercase; letter-spacing: .14em; color: var(--blue2); margin-bottom: 8px; display: block }
.qp-card h3 { font-size: 1.05rem; margin-bottom: 6px; letter-spacing: -.02em }
.qp-card p  { font-size: .82rem; color: var(--muted); margin: 0 }

/* ── COMPARISON TABLE ───────────────────────────────────── */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  font-size: .88rem;
}
.compare-table th {
  padding: 11px 14px;
  font-size: .72rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--muted);
  text-align: left;
  background: var(--surface3);
  border-bottom: 1px solid var(--line2);
}
.compare-table td {
  padding: 13px 14px;
  border-bottom: 1px solid rgba(110,175,230,.07);
  vertical-align: top;
  color: var(--text);
  line-height: 1.4;
}
.compare-table tr:last-child td { border-bottom: none }
.compare-table tr:hover td { background: rgba(26,171,255,.03) }
.compare-table .highlight td { background: rgba(26,171,255,.05) }
.compare-table .model-col { font-weight: 800; color: #fff }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden }

/* ── TYPE PANEL (comparison page) ──────────────────────── */
.compare-stack { display: grid; gap: 18px }
.type-panel {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
  padding: 28px;
  border: 1px solid var(--line);
  border-left: 3px solid rgba(26,171,255,.4);
  border-radius: var(--radius);
  background: var(--surface2);
  box-shadow: var(--shadow-sm);
}
.type-panel:hover { border-left-color: var(--blue) }
.type-panel h2 { font-size: 1.3rem; margin-bottom: 8px; letter-spacing: -.03em }
.type-panel p  { color: var(--muted); margin: 0 }
.type-panel strong {
  color: #fff;
  border: 1px solid var(--line2);
  border-radius: 999px;
  padding: 9px 15px;
  white-space: nowrap;
  background: rgba(26,171,255,.09);
  font-size: .85rem;
  flex-shrink: 0;
  align-self: center;
}

/* ── ARTICLE TEASER (homepage) ──────────────────────────── */
.article-teaser {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  border: 1px solid var(--line);
  border-top: 2px solid rgba(26,171,255,.4);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--surface2), var(--surface));
  box-shadow: var(--shadow);
  overflow: hidden;
}
.at-body { padding: clamp(22px, 4vw, 36px) }
.at-body h2 { font-size: clamp(1.3rem, 2.5vw, 1.9rem); line-height: 1.08; margin: 10px 0 12px; letter-spacing: -.04em }
.at-body h2 a { color: inherit }
.at-body p { color: var(--muted); margin-bottom: 14px; font-size: .98rem }
.at-img { overflow: hidden; min-height: 240px }
.at-img img { width: 100%; height: 100%; object-fit: cover }
.article-meta-tag {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(26,171,255,.09);
  color: var(--blue3);
  font-size: .76rem;
  font-weight: 800;
  padding: 5px 11px;
  margin: 0 4px 6px 0;
}

/* ── FOOTER ─────────────────────────────────────────────── */
.site-footer {
  margin-top: 80px;
  padding: 48px 0 28px;
  border-top: 1px solid var(--line);
  background: rgba(0,0,0,.22);
}
.footer-grid { display: flex; justify-content: space-between; gap: 32px; align-items: flex-start; margin-bottom: 32px }
.footer-note { color: var(--muted); font-size: .9rem; max-width: 500px; line-height: 1.65; margin-top: 10px }
.footer-links { display: flex; gap: 6px; flex-wrap: wrap }
.footer-links a { color: var(--muted); font-weight: 700; font-size: .86rem; padding: 6px 10px; border-radius: 999px; transition: color var(--t) var(--ease), background var(--t) var(--ease) }
.footer-links a:hover { color: var(--text); background: rgba(255,255,255,.07) }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; color: var(--faint); font-size: .82rem; padding-top: 20px; border-top: 1px solid var(--line) }
.footer-bottom a { color: var(--muted) }

/* ── PAGE HERO VARIATIONS ───────────────────────────────── */
.page-hero.simple { padding-bottom: 28px }
.page-hero.simple h1 { font-size: clamp(2rem, 5vw, 4rem) }

/* ── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 1020px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr) }
  .diff-grid { grid-template-columns: repeat(2, 1fr) }
  .site-map-grid { grid-template-columns: repeat(2, 1fr) }
}

@media (max-width: 880px) {
  .nav-toggle { display: flex }
  .site-nav {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 74px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    background: #071120;
    border: 1px solid var(--line2);
    border-radius: var(--radius);
    padding: 12px;
    max-height: calc(100vh - 90px);
    overflow-y: auto;
    z-index: 50;
  }
  .site-nav.open { display: flex }
  .nav-link { padding: 12px 14px; border-radius: var(--radius-sm) }
  .nav-link::after { display: none }

  .hero-full { min-height: 70vh }
  .hero-bg::after { background: linear-gradient(180deg, rgba(4,8,15,.7) 0%, rgba(4,8,15,.85) 50%, rgba(4,8,15,.96) 100%) }
  .hero-content { max-width: 100%; padding: 70px 0 56px }

  .page-hero { padding: 52px 0 36px }
  .page-hero-grid { grid-template-columns: 1fr; gap: 28px }
  .page-hero .media-card { height: 260px }

  .grid-2, .grid-3, .grid-4,
  .path-grid, .split-grid,
  .checklist-grid, .also-grid,
  .quick-picks { grid-template-columns: 1fr }

  .rec-inner { grid-template-columns: 1fr }
  .rec-photo img { min-height: 200px; height: 220px }

  .blog-index-grid, .article-layout { grid-template-columns: 1fr }
  .article-sidebar { position: static }
  .article-content { padding: 22px }

  .article-teaser { grid-template-columns: 1fr }
  .at-img { height: 220px }

  .soft-callout { display: block }
  .soft-callout .btn { margin-top: 18px }

  .type-panel { display: block }
  .type-panel strong { display: inline-flex; margin-top: 16px }

  .footer-grid, .footer-bottom { display: block }
  .footer-links { margin-top: 22px }
  .footer-bottom { margin-top: 16px }

  .stat-bar { flex-wrap: wrap }
  .stat-item { flex: 0 0 50%; border-right: none; border-bottom: 1px solid var(--line) }
  .stat-item:last-child { border-bottom: none }

  .diff-grid { grid-template-columns: 1fr }
  .site-map-grid { grid-template-columns: repeat(2, 1fr) }

  .brand em { display: none }

  .compare-table { font-size: .8rem }
  .compare-table th, .compare-table td { padding: 9px 10px }
}

@media (max-width: 500px) {
  .site-map-grid { grid-template-columns: 1fr }
  .hero-content h1 { font-size: 2.6rem }
  .quick-picks { grid-template-columns: 1fr }
}