/* =============================================================
   PokemonCardProfit — shared stylesheet
   Dark editorial theme with Pokémon yellow accent
   ============================================================= */

:root {
  --black: #0a0a0a;
  --white: #f5f0e8;
  --yellow: #FFD700;
  --yellow-soft: #ffe94d;
  --red: #E3170A;
  --blue: #1a3a6e;
  --blue-deep: #0d1f40;
  --green: #00c853;
  --mid: #1c1c1c;
  --mid-2: #222;
  --muted: #6b6560;
  --border: rgba(245,240,232,0.1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--black);
  color: var(--white);
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  overflow-x: hidden;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ── NAV ── */
nav.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.2rem 3rem;
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.6rem;
  letter-spacing: 0.05em;
  color: var(--white);
}
.nav-logo span { color: var(--yellow); }
.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a {
  color: var(--white);
  font-size: 0.85rem; font-weight: 500; letter-spacing: 0.08em;
  text-transform: uppercase; opacity: 0.7;
  transition: opacity 0.2s, color 0.2s;
}
.nav-links a:hover,
.nav-links a.active { opacity: 1; color: var(--yellow); }
.nav-cta {
  background: var(--yellow); color: var(--black);
  padding: 0.55rem 1.4rem; border-radius: 2px;
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: background 0.2s, transform 0.15s;
}
.nav-cta:hover { background: var(--yellow-soft); transform: translateY(-1px); }

/* ── Mobile menu toggle ── */
.nav-toggle {
  display: none;
  background: none; border: none; color: var(--white);
  font-size: 1.4rem; cursor: pointer;
}

/* ── LAYOUT ── */
main { padding-top: 72px; }
section { padding: 6rem 5rem; }
.container { max-width: 1200px; margin: 0 auto; }

.section-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem; color: var(--yellow);
  letter-spacing: 0.2em; text-transform: uppercase;
  margin-bottom: 0.8rem;
}
.section-h2 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  margin-bottom: 1rem;
}
.section-sub {
  color: rgba(245,240,232,0.55);
  font-size: 1rem; line-height: 1.7;
  max-width: 640px;
}

/* ── BUTTONS ── */
.btn-primary {
  background: var(--yellow); color: var(--black);
  padding: 0.9rem 2rem; border-radius: 2px;
  font-weight: 700; font-size: 0.85rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  display: inline-block;
  transition: all 0.2s;
  border: 2px solid var(--yellow);
  cursor: pointer;
}
.btn-primary:hover { background: transparent; color: var(--yellow); }
.btn-ghost {
  background: transparent; color: var(--white);
  padding: 0.9rem 2rem; border-radius: 2px;
  font-weight: 500; font-size: 0.85rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  border: 1px solid rgba(245,240,232,0.25);
  display: inline-block;
  transition: all 0.2s;
  cursor: pointer;
}
.btn-ghost:hover { border-color: var(--white); }

/* ── PAGE HERO (inner pages) ── */
.page-hero {
  position: relative;
  padding: 6rem 5rem 4rem;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
  background: var(--black);
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(26,58,110,0.35) 0%, transparent 55%),
    radial-gradient(ellipse at 15% 80%, rgba(255,215,0,0.08) 0%, transparent 50%);
  pointer-events: none;
}
.page-hero::after {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,215,0,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,215,0,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}
.page-hero-content { position: relative; z-index: 1; max-width: 900px; }
.breadcrumbs {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 1.2rem;
}
.breadcrumbs a { color: var(--muted); transition: color 0.2s; }
.breadcrumbs a:hover { color: var(--yellow); }
.breadcrumbs .sep { color: rgba(245,240,232,0.2); margin: 0 0.6rem; }
.page-h1 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(3.2rem, 6.5vw, 6rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  margin-bottom: 1.2rem;
}
.page-h1 .accent { color: var(--yellow); }
.page-lede {
  font-size: 1.15rem; line-height: 1.65;
  color: rgba(245,240,232,0.65);
  max-width: 680px;
}

/* ── HOME HERO ── */
.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 70% 50%, rgba(26,58,110,0.4) 0%, transparent 60%),
    radial-gradient(ellipse at 20% 80%, rgba(227,23,10,0.15) 0%, transparent 50%);
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,215,0,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,215,0,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridDrift 20s linear infinite;
}
@keyframes gridDrift {
  from { transform: translateY(0); }
  to { transform: translateY(60px); }
}
.hero-left {
  display: flex; flex-direction: column; justify-content: center;
  padding: 4rem 4rem 4rem 5rem;
  position: relative; z-index: 2;
}
.hero-tag {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem; color: var(--yellow);
  letter-spacing: 0.15em; text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.hero-tag::before {
  content: '▶'; font-size: 0.55rem;
  animation: blink 1.4s steps(1) infinite;
}
@keyframes blink { 0%,49%{opacity:1} 50%,100%{opacity:0} }
.hero-h1 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(4.5rem, 8vw, 7.5rem);
  line-height: 0.92;
  letter-spacing: 0.02em;
  margin-bottom: 1.8rem;
  animation: slideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0; transform: translateY(40px);
}
.hero-h1 .accent { color: var(--yellow); display: block; }
.hero-h1 .outline {
  -webkit-text-stroke: 1.5px var(--white);
  color: transparent;
}
@keyframes slideUp { to { opacity: 1; transform: translateY(0); } }
.hero-sub {
  font-size: 1.1rem; line-height: 1.65;
  color: rgba(245,240,232,0.65);
  max-width: 480px; margin-bottom: 2.5rem;
  animation: slideUp 0.8s 0.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0; transform: translateY(40px);
}
.hero-btns {
  display: flex; gap: 1rem; flex-wrap: wrap;
  animation: slideUp 0.8s 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0; transform: translateY(40px);
}
.hero-stats {
  display: flex; gap: 2.5rem;
  margin-top: 3.5rem; padding-top: 2rem;
  border-top: 1px solid var(--border);
  animation: slideUp 0.8s 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0; transform: translateY(40px);
}
.stat-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2.2rem; color: var(--yellow); line-height: 1;
}
.stat-label {
  font-size: 0.72rem; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--muted);
  margin-top: 0.3rem;
}
.hero-right {
  display: flex; align-items: center; justify-content: center;
  position: relative; z-index: 2;
  animation: slideUp 0.8s 0.15s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0; transform: translateY(40px);
}
.card-stack {
  position: relative; width: 280px; height: 390px;
}
.card-item {
  position: absolute;
  width: 260px; height: 360px;
  border-radius: 12px;
  border: 1px solid rgba(255,215,0,0.2);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  font-family: 'Bebas Neue', sans-serif;
  transition: transform 0.4s;
}
.card-item:nth-child(1) {
  background: linear-gradient(135deg, #1a3a6e 0%, #0d2245 100%);
  transform: rotate(-8deg) translate(-20px, 10px);
  top: 20px; left: 0;
}
.card-item:nth-child(2) {
  background: linear-gradient(135deg, #2d1a0e 0%, #1a0d06 100%);
  border-color: rgba(227,23,10,0.3);
  transform: rotate(-2deg) translate(10px, 20px);
  top: 10px; left: 10px;
}
.card-item:nth-child(3) {
  background: linear-gradient(135deg, #1c1c1c 0%, #0a0a0a 100%);
  border-color: rgba(255,215,0,0.5);
  transform: rotate(4deg);
  top: 0; left: 20px;
  box-shadow: 0 0 40px rgba(255,215,0,0.15), 0 20px 60px rgba(0,0,0,0.5);
}
.card-stack:hover .card-item:nth-child(1) { transform: rotate(-12deg) translate(-35px, 5px); }
.card-stack:hover .card-item:nth-child(2) { transform: rotate(-3deg) translate(5px, 15px); }
.card-stack:hover .card-item:nth-child(3) { transform: rotate(6deg) translateY(-8px); }
.card-poke-name { font-size: 2.2rem; color: var(--yellow); letter-spacing: 0.05em; }
.card-grade {
  background: var(--yellow); color: var(--black);
  padding: 0.3rem 0.8rem; border-radius: 2px;
  font-size: 1rem; font-weight: 700; margin-top: 0.5rem;
}
.card-price {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem; color: rgba(255,215,0,0.6);
  margin-top: 0.8rem;
}
.card-profit-tag {
  position: absolute; top: -18px; right: -18px;
  background: var(--green); color: #fff;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem; font-weight: 600;
  padding: 0.35rem 0.7rem; border-radius: 20px;
  animation: float 2.5s ease-in-out infinite;
  z-index: 5;
}
@keyframes float {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* ── METHOD CARDS (grid) ── */
.methods { background: var(--black); }
.methods-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5px;
  margin-top: 3.5rem;
  border: 1.5px solid var(--border);
}
.method-card {
  background: var(--mid);
  padding: 2.5rem 2rem;
  position: relative; overflow: hidden;
  cursor: pointer;
  transition: background 0.25s;
  display: flex; flex-direction: column;
  color: var(--white);
}
.method-card::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--yellow);
  transform: scaleX(0);
  transition: transform 0.3s;
  transform-origin: left;
}
.method-card:hover { background: var(--mid-2); }
.method-card:hover::after { transform: scaleX(1); }
.method-icon { font-size: 2rem; margin-bottom: 1.2rem; display: block; }
.method-num {
  position: absolute; top: 1.5rem; right: 1.5rem;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 3.5rem; color: rgba(255,215,0,0.05);
  line-height: 1;
}
.method-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.6rem; letter-spacing: 0.04em;
  margin-bottom: 0.6rem; color: var(--white);
}
.method-desc {
  font-size: 0.88rem; line-height: 1.65;
  color: rgba(245,240,232,0.55);
  margin-bottom: 1.2rem;
}
.method-badge {
  display: inline-block;
  background: rgba(255,215,0,0.08); color: var(--yellow);
  border: 1px solid rgba(255,215,0,0.2);
  padding: 0.25rem 0.7rem; border-radius: 2px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem; letter-spacing: 0.08em;
  align-self: flex-start;
}

/* ── TOOLS STRIP ── */
.tools-strip {
  background: var(--yellow);
  padding: 2rem 5rem;
  display: flex; align-items: center; justify-content: space-between;
  gap: 2rem; flex-wrap: wrap;
}
.tools-strip-text {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2rem; color: var(--black); letter-spacing: 0.04em;
}
.tools-strip-sub { font-size: 0.9rem; color: rgba(10,10,10,0.65); margin-top: 0.2rem; }
.tools-strip-items { display: flex; gap: 1rem; flex-wrap: wrap; }
.tool-chip {
  background: rgba(0,0,0,0.1); color: var(--black);
  padding: 0.5rem 1.1rem; border-radius: 2px;
  font-size: 0.82rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
  display: flex; align-items: center; gap: 0.4rem;
  transition: background 0.2s;
}
.tool-chip:hover { background: rgba(0,0,0,0.2); }

/* ── GUIDES ── */
.guides { background: #0d0d0d; }
.guides-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 1px;
  margin-top: 3.5rem;
  background: var(--border);
}
.guide-card {
  background: var(--black);
  padding: 2.5rem 2rem;
  color: var(--white);
  display: flex; flex-direction: column;
  transition: background 0.2s;
  position: relative; overflow: hidden;
}
.guide-card:hover { background: var(--mid); }
.guide-card.featured { grid-row: span 2; }
.guide-category {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--yellow);
  margin-bottom: 1rem;
}
.guide-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.55rem; line-height: 1.05;
  letter-spacing: 0.03em; margin-bottom: 0.8rem;
}
.guide-card.featured .guide-title { font-size: 2.2rem; }
.guide-excerpt {
  font-size: 0.85rem; line-height: 1.65;
  color: rgba(245,240,232,0.5); flex: 1;
}
.guide-meta {
  margin-top: 1.5rem;
  display: flex; align-items: center; gap: 0.8rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem; color: var(--muted);
}
.guide-arrow {
  position: absolute; bottom: 1.8rem; right: 1.8rem;
  font-size: 1.2rem; color: var(--yellow); opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
}
.guide-card:hover .guide-arrow { opacity: 1; transform: translate(4px, -4px); }

/* ── SUPPLIES ── */
.supplies { background: var(--black); }
.supplies-intro {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 5rem; align-items: center;
  margin-bottom: 3.5rem;
}
.supplies-products {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
}
.product-card {
  background: var(--mid);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.5rem 1rem;
  text-align: center;
  color: var(--white);
  transition: border-color 0.2s, transform 0.2s;
  display: flex; flex-direction: column; align-items: center;
}
.product-card:hover { border-color: rgba(255,215,0,0.4); transform: translateY(-3px); }
.product-emoji { font-size: 2.2rem; display: block; margin-bottom: 0.8rem; }
.product-name { font-size: 0.82rem; font-weight: 500; margin-bottom: 0.3rem; }
.product-aff {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem; color: var(--yellow); opacity: 0.7;
}

/* ── NEWSLETTER ── */
.newsletter {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-deep) 100%);
  position: relative; overflow: hidden;
  text-align: center;
  padding: 6rem 5rem;
}
.newsletter::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,215,0,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,215,0,0.06) 1px, transparent 1px);
  background-size: 40px 40px;
}
.newsletter-content { position: relative; z-index: 1; max-width: 720px; margin: 0 auto; }
.newsletter h2 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(3rem, 6vw, 5rem);
  letter-spacing: 0.04em;
  margin-bottom: 0.8rem;
}
.newsletter h2 span { color: var(--yellow); }
.newsletter p {
  color: rgba(245,240,232,0.65);
  margin-bottom: 2rem; font-size: 1rem;
}
.newsletter-form {
  display: flex; gap: 0;
  max-width: 480px; margin: 0 auto;
}
.newsletter-form input {
  flex: 1;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-right: none;
  padding: 0.9rem 1.2rem;
  color: var(--white);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  outline: none;
  border-radius: 2px 0 0 2px;
}
.newsletter-form input::placeholder { color: rgba(255,255,255,0.35); }
.newsletter-form button {
  background: var(--yellow); color: var(--black);
  border: none; padding: 0.9rem 1.6rem;
  font-family: 'DM Sans', sans-serif;
  font-weight: 700; font-size: 0.85rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  cursor: pointer; border-radius: 0 2px 2px 0;
  transition: background 0.2s;
}
.newsletter-form button:hover { background: var(--yellow-soft); }
.newsletter-small {
  font-size: 0.75rem; color: rgba(245,240,232,0.35);
  margin-top: 1rem;
}

/* ── FOOTER ── */
footer.site-footer {
  background: #050505;
  padding: 3rem 5rem;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1.5rem;
  border-top: 1px solid var(--border);
}
.footer-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.4rem; letter-spacing: 0.05em;
  color: var(--white);
}
.footer-logo span { color: var(--yellow); }
.footer-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-links a {
  font-size: 0.8rem; color: var(--muted);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--white); }
.footer-disclaimer {
  font-size: 0.72rem; color: var(--muted);
  max-width: 420px; line-height: 1.6;
}

/* ── PROSE / ARTICLE ── */
.prose {
  max-width: 780px; margin: 0 auto;
  font-size: 1.02rem; line-height: 1.8;
  color: rgba(245,240,232,0.85);
}
.prose h2 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2.4rem; letter-spacing: 0.02em;
  margin: 3rem 0 1rem; color: var(--white);
}
.prose h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.6rem; letter-spacing: 0.02em;
  margin: 2rem 0 0.8rem; color: var(--yellow);
}
.prose p { margin-bottom: 1.2rem; }
.prose ul, .prose ol { margin: 1rem 0 1.4rem 1.4rem; }
.prose li { margin-bottom: 0.5rem; }
.prose strong { color: var(--white); font-weight: 500; }
.prose a { color: var(--yellow); border-bottom: 1px dotted rgba(255,215,0,0.4); }
.prose a:hover { border-bottom-color: var(--yellow); }
.prose blockquote {
  border-left: 3px solid var(--yellow);
  padding: 0.8rem 1.4rem;
  margin: 1.6rem 0;
  font-style: italic;
  color: rgba(245,240,232,0.7);
  background: rgba(255,215,0,0.04);
}
.prose code {
  font-family: 'JetBrains Mono', monospace;
  background: rgba(255,215,0,0.08);
  color: var(--yellow);
  padding: 0.1rem 0.4rem;
  border-radius: 2px;
  font-size: 0.9em;
}
.callout {
  background: var(--mid);
  border-left: 4px solid var(--yellow);
  padding: 1.4rem 1.6rem;
  margin: 2rem 0;
  border-radius: 2px;
}
.callout.warn { border-left-color: var(--red); }
.callout.tip { border-left-color: var(--green); }
.callout-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--yellow);
  margin-bottom: 0.4rem;
}
.callout.warn .callout-title { color: var(--red); }
.callout.tip .callout-title { color: var(--green); }

/* ── TABLE ── */
.data-table {
  width: 100%; border-collapse: collapse;
  margin: 2rem 0;
  font-size: 0.9rem;
  background: var(--mid);
}
.data-table th, .data-table td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
.data-table th {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem; letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--yellow);
  background: rgba(255,215,0,0.06);
}
.data-table tr:hover td { background: rgba(255,215,0,0.03); }
.data-table td.num {
  font-family: 'JetBrains Mono', monospace;
  text-align: right;
}
.data-table .pos { color: var(--green); }
.data-table .neg { color: var(--red); }

/* ── TOC (sticky sidebar) ── */
.article-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 4rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 5rem;
}
.toc {
  position: sticky; top: 100px;
  align-self: start;
  font-size: 0.85rem;
  border-left: 1px solid var(--border);
  padding-left: 1.2rem;
}
.toc-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--yellow);
  margin-bottom: 1rem;
}
.toc ul { list-style: none; }
.toc li { margin-bottom: 0.6rem; }
.toc a {
  color: rgba(245,240,232,0.6);
  transition: color 0.2s;
  display: block;
  line-height: 1.4;
}
.toc a:hover { color: var(--yellow); }

/* ── CALCULATOR ── */
.calc-shell {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 1040px;
  margin: 0 auto;
  padding: 4rem 5rem;
}
.calc-inputs, .calc-results {
  background: var(--mid);
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: 4px;
}
.calc-panel-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.4rem; letter-spacing: 0.04em;
  color: var(--yellow);
  margin-bottom: 1.4rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--border);
}
.field { margin-bottom: 1.2rem; }
.field label {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem; letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(245,240,232,0.75);
  margin-bottom: 0.4rem;
}
.field input, .field select {
  width: 100%;
  background: var(--black);
  border: 1px solid var(--border);
  color: var(--white);
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  padding: 0.7rem 0.9rem;
  border-radius: 2px;
  outline: none;
  transition: border-color 0.2s;
}
.field input:focus, .field select:focus { border-color: var(--yellow); }
.field .hint {
  font-size: 0.72rem; color: var(--muted);
  margin-top: 0.3rem;
}
.result-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.8rem 0;
  border-bottom: 1px dashed var(--border);
}
.result-row:last-child { border-bottom: none; }
.result-label {
  font-size: 0.9rem; color: rgba(245,240,232,0.6);
}
.result-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1rem; color: var(--white);
}
.result-hero {
  margin-top: 1.2rem;
  padding: 1.4rem;
  background: var(--black);
  border: 1px solid var(--yellow);
  border-radius: 2px;
  text-align: center;
}
.result-hero-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--yellow);
}
.result-hero-value {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 3.2rem; line-height: 1.1;
  color: var(--yellow); margin: 0.3rem 0;
}
.result-hero-value.neg { color: var(--red); }
.result-hero-value.pos { color: var(--green); }
.result-hero-sub { font-size: 0.8rem; color: var(--muted); }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  nav.site-nav { padding: 1rem 1.5rem; }
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(10,10,10,0.98);
    padding: 1.5rem 2rem; gap: 1.2rem;
    border-bottom: 1px solid var(--border);
  }
  .hero { grid-template-columns: 1fr; }
  .hero-right { display: none; }
  .hero-left { padding: 3rem 2rem; }
  section, .page-hero { padding: 4rem 2rem; }
  .methods-grid { grid-template-columns: 1fr 1fr; }
  .guides-grid { grid-template-columns: 1fr; }
  .guide-card.featured { grid-row: span 1; }
  .supplies-intro { grid-template-columns: 1fr; gap: 2rem; }
  .supplies-products { grid-template-columns: repeat(2, 1fr); }
  .tools-strip { padding: 1.5rem 2rem; flex-direction: column; align-items: flex-start; gap: 1rem; }
  .tools-strip-items { flex-wrap: wrap; }
  .newsletter { padding: 4rem 2rem; }
  footer.site-footer { padding: 2rem; flex-direction: column; align-items: flex-start; }
  .article-layout { grid-template-columns: 1fr; padding: 3rem 2rem; gap: 2rem; }
  .toc { position: static; border-left: none; padding-left: 0; padding-bottom: 1.5rem; border-bottom: 1px solid var(--border); }
  .calc-shell { grid-template-columns: 1fr; padding: 3rem 2rem; }
  .section-h2 { font-size: 2.4rem; }
}

/* ── NARROW PHONE ── */
@media (max-width: 560px) {
  section, .page-hero { padding: 3rem 1.2rem; }
  .hero-left { padding: 2.2rem 1.2rem 3rem; }
  .hero-h1 { font-size: clamp(3.2rem, 12vw, 4.2rem); margin-bottom: 1.2rem; }
  .hero-sub { font-size: 1rem; margin-bottom: 1.8rem; }
  .hero-btns { flex-direction: column; gap: 0.7rem; }
  .hero-btns a { width: 100%; text-align: center; }
  .page-h1 { font-size: clamp(2.8rem, 10vw, 3.8rem); }
  .page-lede { font-size: 1rem; }
  .section-h2 { font-size: 2rem; }
  .methods-grid { grid-template-columns: 1fr; }
  .supplies-products { grid-template-columns: 1fr; }
  .tools-strip-items { gap: 0.5rem; }
  .tool-chip { font-size: 0.78rem; padding: 0.5rem 0.9rem; }
  .newsletter-form { flex-direction: column; gap: 0.6rem; max-width: 100%; }
  .newsletter-form input { border-right: 1px solid rgba(255,255,255,0.15); border-radius: 2px; }
  .newsletter-form button { border-radius: 2px; width: 100%; }
  .calc-shell { padding: 2rem 1.2rem; gap: 1.5rem; }
  .calc-inputs, .calc-results { padding: 1.4rem; }
  .result-hero-value { font-size: 2.4rem; }
  .article-layout { padding: 2rem 1.2rem; }
  .prose h2 { font-size: 1.6rem; }
  footer.site-footer { padding: 2rem 1.2rem; }
  .breadcrumbs { font-size: 0.72rem; }
}