/* ============================================================
   NES-DEV-CART — Website Styles
   Inspired by 1985 NES marketing: grey steel, bold red, black
   ============================================================ */

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

:root {
  --nes-red: #e4002b;
  --nes-red-dark: #b80023;
  --nes-grey-light: #d4d0c8;
  --nes-grey: #8c8a82;
  --nes-grey-dark: #3a3a3a;
  --nes-black: #1a1a1a;
  --nes-white: #f0ece4;
  --nes-gold: #c9a84c;
  --nes-blue: #4a6fa5;

  --font-pixel: 'Press Start 2P', monospace;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --max-width: 1100px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--nes-white);
  background: var(--nes-black);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.pixel-text {
  font-family: var(--font-pixel);
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-family: var(--font-pixel);
  font-size: 0.75rem;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: 3px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-primary {
  background: var(--nes-red);
  color: white;
  border-color: var(--nes-red);
}
.btn-primary:hover {
  background: var(--nes-red-dark);
  border-color: var(--nes-red-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(228, 0, 43, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--nes-white);
  border-color: var(--nes-grey);
}
.btn-secondary:hover {
  border-color: var(--nes-white);
  transform: translateY(-2px);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0d0d0d 0%, #1a1a2e 50%, #0d0d0d 100%);
  overflow: hidden;
  padding: 60px 24px;
}

.hero-scanlines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.15) 2px,
    rgba(0, 0, 0, 0.15) 4px
  );
  pointer-events: none;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-pixel);
  font-size: 0.55rem;
  letter-spacing: 3px;
  color: var(--nes-gold);
  border: 1px solid var(--nes-gold);
  padding: 6px 16px;
  margin-bottom: 32px;
  text-transform: uppercase;
}

.hero-title {
  font-family: var(--font-pixel);
  font-size: clamp(1.8rem, 5vw, 3.5rem);
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: 2px;
}

.title-nes { color: var(--nes-red); }
.title-sep { color: var(--nes-grey); }
.title-dev { color: var(--nes-white); }
.title-cart { color: var(--nes-grey-light); }

.hero-tagline {
  font-family: var(--font-pixel);
  font-size: clamp(0.6rem, 1.5vw, 0.85rem);
  color: var(--nes-grey-light);
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--nes-grey);
  max-width: 600px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.hero-price {
  font-family: var(--font-pixel);
  font-size: 0.7rem;
  color: var(--nes-grey);
}
.hero-price strong {
  color: var(--nes-white);
  font-size: 1rem;
}

.hero-cart-art {
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.06;
  z-index: 0;
}

.cart-ascii pre {
  font-family: var(--font-pixel);
  font-size: 1.2rem;
  color: var(--nes-white);
  line-height: 1.4;
}

/* ============================================================
   SECTIONS
   ============================================================ */
.section {
  padding: 80px 0;
}

.section-dark {
  background: var(--nes-black);
}

.section-grey {
  background: linear-gradient(180deg, #1f1f1f 0%, #161616 100%);
}

.section-red {
  background: linear-gradient(135deg, var(--nes-red-dark) 0%, #8b0015 100%);
  position: relative;
}
.section-red::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.1) 2px,
    rgba(0, 0, 0, 0.1) 4px
  );
  pointer-events: none;
}

.section-title {
  font-size: clamp(0.9rem, 2.5vw, 1.4rem);
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: 2px;
  text-transform: uppercase;
  position: relative;
}

.section-sub {
  text-align: center;
  color: var(--nes-grey);
  max-width: 600px;
  margin: 0 auto 48px;
  font-size: 1rem;
}

/* --- Two Column --- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  margin-top: 48px;
}

.lead {
  font-size: 1.15rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.col p {
  color: var(--nes-grey-light);
  margin-bottom: 12px;
}

/* --- Feature Box --- */
.feature-box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--nes-grey-dark);
  padding: 32px;
}

.feature-box-title {
  font-size: 0.65rem;
  color: var(--nes-red);
  margin-bottom: 24px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.setup-step {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--nes-grey-light);
  font-size: 0.95rem;
}
.setup-step:last-child { border-bottom: none; }

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--nes-red);
  color: white;
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  flex-shrink: 0;
}

/* ============================================================
   FEATURE GRID
   ============================================================ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.feature-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--nes-grey-dark);
  padding: 32px 24px;
  transition: border-color 0.2s, transform 0.2s;
}
.feature-card:hover {
  border-color: var(--nes-red);
  transform: translateY(-4px);
}

.feature-icon {
  margin-bottom: 16px;
}

.icon-art {
  font-family: var(--font-pixel);
  font-size: 0.5rem;
  color: var(--nes-red);
  line-height: 1.6;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--nes-white);
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--nes-grey);
  line-height: 1.6;
}

/* ============================================================
   SIGNAL GRID
   ============================================================ */
.signal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.signal-block {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--nes-grey-dark);
  padding: 28px;
}

.signal-label {
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  color: var(--nes-red);
  margin-bottom: 16px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.signal-pins {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.pin {
  display: inline-block;
  background: var(--nes-grey-dark);
  color: var(--nes-gold);
  font-family: var(--font-pixel);
  font-size: 0.5rem;
  padding: 4px 8px;
  letter-spacing: 1px;
}

.signal-desc {
  font-size: 0.85rem;
  color: var(--nes-grey);
  line-height: 1.6;
}

/* ============================================================
   BUILD GRID
   ============================================================ */
.build-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
  position: relative;
  z-index: 1;
}

.build-card {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 32px 24px;
  transition: transform 0.2s;
}
.build-card:hover {
  transform: translateY(-4px);
}

.build-num {
  font-size: 1.8rem;
  color: rgba(255, 255, 255, 0.15);
  margin-bottom: 12px;
}

.build-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.build-card p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}

/* ============================================================
   SPECS
   ============================================================ */
.specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.spec-group {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--nes-grey-dark);
  padding: 28px;
}

.spec-label {
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  color: var(--nes-red);
  margin-bottom: 16px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
}

.spec-table td {
  padding: 8px 0;
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.spec-table tr:last-child td { border-bottom: none; }

.spec-table td:first-child {
  color: var(--nes-grey);
  width: 40%;
}
.spec-table td:last-child {
  color: var(--nes-white);
  font-weight: 600;
}

/* ============================================================
   COMPARISON TABLE
   ============================================================ */
.compare-table-wrap {
  margin-top: 48px;
  overflow-x: auto;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}

.compare-table th,
.compare-table td {
  padding: 14px 20px;
  text-align: left;
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.compare-table th {
  font-family: var(--font-pixel);
  font-size: 0.55rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--nes-grey);
  padding-bottom: 20px;
}

.compare-table th.highlight {
  color: var(--nes-red);
}

.compare-table td:first-child {
  color: var(--nes-grey);
  font-weight: 600;
}

.compare-table td.highlight {
  color: var(--nes-white);
  background: rgba(228, 0, 43, 0.05);
}

/* ============================================================
   BOX CONTENTS
   ============================================================ */
.box-contents {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.box-item {
  text-align: center;
  padding: 28px 16px;
  border: 1px solid var(--nes-grey-dark);
}

.box-item-icon {
  font-size: 1.2rem;
  color: var(--nes-red);
  margin-bottom: 16px;
}

.box-item p {
  font-size: 0.85rem;
  color: var(--nes-grey);
  line-height: 1.5;
}

.box-note {
  text-align: center;
  margin-top: 24px;
  font-size: 0.8rem;
  color: var(--nes-grey);
  font-style: italic;
}

/* ============================================================
   BUY / PRICING
   ============================================================ */
.buy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
  position: relative;
  z-index: 1;
}

.buy-card {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 36px 28px;
  text-align: center;
  position: relative;
}

.buy-card-featured {
  border-color: var(--nes-white);
  transform: scale(1.05);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
}

.buy-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-pixel);
  font-size: 0.45rem;
  background: var(--nes-white);
  color: var(--nes-black);
  padding: 4px 12px;
  letter-spacing: 2px;
  white-space: nowrap;
}

.buy-tier {
  font-size: 0.7rem;
  color: var(--nes-grey-light);
  margin-bottom: 16px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.buy-price {
  font-size: 3rem;
  font-weight: 900;
  color: var(--nes-white);
  margin-bottom: 24px;
  line-height: 1;
}

.buy-features {
  list-style: none;
  margin-bottom: 28px;
  text-align: left;
}

.buy-features li {
  padding: 8px 0;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-left: 20px;
  position: relative;
}
.buy-features li::before {
  content: '+';
  position: absolute;
  left: 0;
  color: var(--nes-red);
  font-weight: 700;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-list {
  max-width: 700px;
  margin: 48px auto 0;
}

.faq-item {
  border-bottom: 1px solid var(--nes-grey-dark);
}

.faq-item summary {
  padding: 20px 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--nes-white);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 32px;
}

.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-pixel);
  font-size: 0.7rem;
  color: var(--nes-red);
}

.faq-item[open] summary::after {
  content: '-';
}

.faq-item p {
  padding: 0 0 20px;
  font-size: 0.9rem;
  color: var(--nes-grey);
  line-height: 1.7;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: 60px 0 40px;
  background: #0a0a0a;
  text-align: center;
  border-top: 1px solid var(--nes-grey-dark);
}

.footer-brand {
  font-size: 0.9rem;
  color: var(--nes-red);
  letter-spacing: 3px;
  margin-bottom: 12px;
}

.footer-copy {
  color: var(--nes-grey);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-links a {
  color: var(--nes-grey);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.15s;
}
.footer-links a:hover {
  color: var(--nes-white);
}

.footer-legal {
  font-size: 0.7rem;
  color: var(--nes-grey-dark);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.5;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .two-col,
  .feature-grid,
  .signal-grid,
  .build-grid,
  .specs-grid,
  .buy-grid {
    grid-template-columns: 1fr;
  }

  .box-contents {
    grid-template-columns: repeat(2, 1fr);
  }

  .buy-card-featured {
    transform: none;
    order: -1;
  }

  .hero-cart-art {
    display: none;
  }
}

@media (max-width: 600px) {
  .section {
    padding: 60px 0;
  }

  .hero {
    min-height: auto;
    padding: 100px 24px 60px;
  }

  .box-contents {
    grid-template-columns: 1fr;
  }

  .hero-badge {
    font-size: 0.45rem;
    letter-spacing: 2px;
  }
}