/* =============================================
   NolTech - Landing Page Styles
   Bright, minimalist. No purple gradients,
   no centered slop, no Inter font.
   ============================================= */

/* 1. Custom Properties
   ============================================= */
:root {
  --blue:        #0057FF;
  --blue-dk:     #0041CC;
  --blue-lt:     rgba(0, 87, 255, 0.08);
  --navy:        #00143A;
  --navy-mid:    #001F5A;
  --cyan:        #00C2FF;
  --white:       #FFFFFF;
  --bg:          #FFFFFF;
  --bg-alt:      #F4F6FA;
  --text:        #0A0A0A;
  --muted:       #5C6370;
  --border:      #E4E7ED;

  --shadow-sm:   0 1px 4px rgba(0,0,0,0.07);
  --shadow-md:   0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg:   0 12px 48px rgba(0,0,0,0.12);

  --radius:      10px;
  --ease:        cubic-bezier(0.16, 1, 0.3, 1);
  --dur:         0.3s;

  /* System font stack - no Inter, no AI-default fonts */
  --font: system-ui, -apple-system, BlinkMacSystemFont,
          'Segoe UI', 'Helvetica Neue', Arial, sans-serif;

  --container: 1100px;
}

/* 2. Reset
   ============================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font);
  font-size: 16px;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }
a        { color: inherit; text-decoration: none; }
ul, ol   { list-style: none; }
button   { cursor: pointer; border: none; background: none; font: inherit; }

/* 3. Layout
   ============================================= */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* 4. Navigation
   ============================================= */
.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 200;
  padding: 22px 0;
  transition: padding var(--dur) var(--ease),
              background var(--dur) ease,
              box-shadow var(--dur) ease;
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 14px 0;
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.05em;
  color: var(--navy);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  transition: color var(--dur);
}
.nav-links a:hover { color: var(--text); }

.btn-nav {
  padding: 9px 22px;
  background: var(--blue);
  color: var(--white) !important;
  font-weight: 600;
  border-radius: var(--radius);
  transition: background var(--dur), transform var(--dur);
}
.btn-nav:hover {
  background: var(--blue-dk);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  z-index: 201;
  position: relative;
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--dur), opacity var(--dur);
}
.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 5. Hero
   ============================================= */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 130px 0 80px;
  position: relative;
  overflow: hidden;
}

/* Dot-grid background - subtle, not purple */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(
    circle at 1px 1px,
    rgba(0, 87, 255, 0.07) 1px,
    transparent 0
  );
  background-size: 40px 40px;
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 64px;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--blue-lt);
  color: var(--blue);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 100px;
  margin-bottom: 24px;
}
.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--blue);
  border-radius: 50%;
  flex-shrink: 0;
}

.hero-title {
  font-size: clamp(3.2rem, 6.5vw, 5.5rem);
  font-weight: 900;
  letter-spacing: -0.045em;
  line-height: 1.0;
  color: var(--navy);
  margin-bottom: 24px;
}
.hero-title .accent {
  display: block;
  color: var(--blue);
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--muted);
  line-height: 1.7;
  max-width: 460px;
  margin-bottom: 40px;
}

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* --- Laptop mockup --- */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.device-mockup {
  width: min(380px, 100%);
  animation: float 4s ease-in-out infinite;
  filter: drop-shadow(0 24px 48px rgba(0, 20, 58, 0.18));
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-14px); }
}

.device-screen {
  background: linear-gradient(140deg, #0057FF 0%, #00A3FF 100%);
  border-radius: 14px 14px 0 0;
  padding: 16px 20px 20px;
  aspect-ratio: 16 / 10;
  position: relative;
  overflow: hidden;
}
.device-screen::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(130deg, rgba(255,255,255,0.12) 0%, transparent 60%);
  pointer-events: none;
}

.screen-chrome {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.35);
}

.screen-content { position: relative; z-index: 1; }

.screen-bar {
  height: 9px;
  background: rgba(255,255,255,0.35);
  border-radius: 100px;
  margin-bottom: 12px;
}
.screen-bar.short  { width: 50%; }
.screen-bar.medium { width: 72%; }

.screen-block {
  height: 52px;
  background: rgba(255,255,255,0.12);
  border-radius: 6px;
  margin-top: 16px;
  border: 1px solid rgba(255,255,255,0.2);
}

.device-hinge {
  height: 10px;
  background: #B8C1D0;
  margin: 0 -8px;
  border-radius: 0;
}
.device-base {
  height: 10px;
  background: #D0D8E4;
  margin: 0 -32px;
  border-radius: 0 0 10px 10px;
}

/* Scroll cue */
.scroll-cue {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.scroll-line {
  width: 1px;
  height: 44px;
  background: linear-gradient(to bottom, var(--muted), transparent);
  animation: scrollPulse 1.8s ease-in-out infinite;
  transform-origin: top;
}
@keyframes scrollPulse {
  0%   { transform: scaleY(0); opacity: 0; }
  30%  { opacity: 1; }
  60%  { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(1); opacity: 0; }
}

/* 6. Buttons
   ============================================= */
.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 13px 28px;
  background: var(--blue);
  color: var(--white);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--radius);
  transition: background var(--dur), transform var(--dur), box-shadow var(--dur);
}
.btn-primary:hover {
  background: var(--blue-dk);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 87, 255, 0.28);
}
.btn-primary.white {
  background: var(--white);
  color: var(--blue);
}
.btn-primary.white:hover {
  background: rgba(255,255,255,0.9);
  box-shadow: 0 8px 28px rgba(0,0,0,0.18);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  padding: 13px 28px;
  background: transparent;
  color: var(--navy);
  font-weight: 600;
  font-size: 0.9rem;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--dur), background var(--dur);
}
.btn-ghost:hover {
  border-color: var(--navy);
  background: rgba(0, 20, 58, 0.04);
}

/* 7. Stats
   ============================================= */
.stats {
  padding: 72px 0;
  border-top:    1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-item {
  padding-left: 20px;
  border-left: 3px solid var(--blue);
}

.stat-row {
  display: flex;
  align-items: flex-start;
  gap: 2px;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--navy);
  line-height: 1;
}

.stat-affix {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--blue);
  line-height: 1.2;
}

.stat-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
}

/* 8. Products
   ============================================= */
.products {
  padding: 96px 0;
  background: var(--bg-alt);
}

.section-header {
  margin-bottom: 56px;
}

.tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--blue);
  margin-bottom: 14px;
}
.tag.light { color: rgba(255,255,255,0.6); }

.section-header h2 {
  font-size: clamp(1.9rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  color: var(--navy);
  line-height: 1.1;
  margin-bottom: 14px;
}
.how .section-header h2,
.cta-section .section-header h2 { color: var(--white); }

.section-header p {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 480px;
  line-height: 1.65;
}

.products-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.product-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  position: relative;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}
.product-card.featured {
  background: var(--navy);
  border-color: var(--navy);
}
.product-card.featured h3     { color: var(--white); }
.product-card.featured p      { color: rgba(255,255,255,0.65); }
.product-card.featured .features li { color: rgba(255,255,255,0.6); }
.product-card.featured .features li::before { background: var(--cyan); }
.product-card.featured .product-icon { color: var(--cyan); }
.product-card.featured .btn-link { color: var(--cyan); }

.featured-badge {
  position: absolute;
  top: 18px;
  right: 18px;
  padding: 4px 12px;
  background: var(--blue);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 100px;
}

.product-icon {
  width: 52px;
  height: 52px;
  color: var(--blue);
  margin-bottom: 22px;
}

.product-card h3 {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--navy);
  margin-bottom: 12px;
}

.product-card > p {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 24px;
}

.features {
  margin-bottom: 32px;
}
.features li {
  font-size: 0.875rem;
  color: var(--muted);
  padding: 7px 0 7px 20px;
  position: relative;
  border-bottom: 1px solid var(--border);
}
.product-card.featured .features li { border-bottom-color: rgba(255,255,255,0.08); }
.features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 7px;
  height: 7px;
  background: var(--blue);
  border-radius: 50%;
}

.btn-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--blue);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--dur);
}
.btn-link:hover { gap: 10px; }

/* 9. Why
   ============================================= */
.why {
  padding: 96px 0;
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.why-card {
  background: var(--bg);
  padding: 48px 40px;
  transition: background var(--dur);
}
.why-card:hover { background: var(--bg-alt); }

.why-num {
  font-size: 2.6rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--blue);
  opacity: 0.22;
  line-height: 1;
  margin-bottom: 18px;
}

.why-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--navy);
  margin-bottom: 10px;
}

.why-card p {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.65;
}

/* 10. How It Works
   ============================================= */
.how {
  padding: 96px 0;
  background: var(--navy);
}

.how .tag    { color: var(--cyan); }
.how h2      { color: var(--white); }

.steps {
  display: flex;
  align-items: stretch;
  gap: 0;
}

.step {
  flex: 1;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 12px;
  padding: 36px 32px;
  transition: background var(--dur);
}
.step:hover { background: rgba(255,255,255,0.07); }

.step-connector {
  flex: 0 0 48px;
  position: relative;
  align-self: center;
}
.step-connector::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: rgba(255,255,255,0.15);
}
.step-connector::after {
  content: '';
  position: absolute;
  right: -4px;
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-left-color: rgba(255,255,255,0.2);
}

.step-num {
  font-size: 2.8rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--blue);
  line-height: 1;
  margin-bottom: 16px;
}

.step h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}

.step p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.65;
}

/* 11. FAQ
   ============================================= */
.faq {
  padding: 96px 0;
  background: var(--bg-alt);
}

.faq-list {
  max-width: 720px;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:first-child {
  border-top: 1px solid var(--border);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 22px 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--navy);
  text-align: left;
  transition: color var(--dur);
}
.faq-question:hover { color: var(--blue); }
.faq-question[aria-expanded="true"] { color: var(--blue); }

.faq-icon {
  flex-shrink: 0;
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--blue);
  transition: transform var(--dur);
  line-height: 1;
}
.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  padding-bottom: 22px;
}
.faq-answer p {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.7;
}

/* 12. eBay CTA
   ============================================= */
   ============================================= */
.cta-section {
  padding: 96px 0;
  background: var(--blue);
}

.cta-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 64px;
}

.cta-text .tag { margin-bottom: 14px; }

.cta-text h2 {
  font-size: clamp(1.9rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 16px;
}

.cta-text p {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.72);
  margin-bottom: 36px;
  line-height: 1.65;
  max-width: 420px;
}

/* Card stack graphic */
.cta-graphic {
  position: relative;
  width: 220px;
  height: 200px;
  flex-shrink: 0;
}

.mini-card {
  position: absolute;
  width: 156px;
  background: var(--white);
  border-radius: 12px;
  padding: 18px 20px;
  box-shadow: var(--shadow-lg);
}
.mini-card.c1 { top: 0;   left: 0;   z-index: 1; }
.mini-card.c2 { top: 32px; left: 32px; z-index: 2; }
.mini-card.c3 { top: 64px; left: 64px; z-index: 3; }

.mc-bar {
  height: 7px;
  background: var(--bg-alt);
  border-radius: 100px;
  margin-bottom: 7px;
}
.mc-bar.short { width: 55%; }

.mc-price {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--navy);
  margin-top: 10px;
}

/* 12. Footer
   ============================================= */
.footer {
  padding: 56px 0;
  background: var(--navy);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: start;
  gap: 48px;
}

.footer-brand .logo {
  color: var(--white);
  margin-bottom: 10px;
  display: inline-block;
}
.footer-brand p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.38);
  line-height: 1.65;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-nav a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.45);
  transition: color var(--dur);
}
.footer-nav a:hover { color: var(--white); }

.footer-legal {
  text-align: right;
}
.footer-legal p {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
  line-height: 1.65;
}

/* 13. Scroll Reveal Animations
   ============================================= */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* Staggered delays - siblings in the same grid */
.hero-content .reveal:nth-child(2) { transition-delay: 0.06s; }
.hero-content .reveal:nth-child(3) { transition-delay: 0.12s; }
.hero-content .reveal:nth-child(4) { transition-delay: 0.18s; }

.stats-grid .reveal:nth-child(2)   { transition-delay: 0.08s; }
.stats-grid .reveal:nth-child(3)   { transition-delay: 0.16s; }
.stats-grid .reveal:nth-child(4)   { transition-delay: 0.24s; }

.products-grid .reveal:nth-child(2) { transition-delay: 0.12s; }

.why-grid .reveal:nth-child(2)     { transition-delay: 0.08s; }
.why-grid .reveal:nth-child(3)     { transition-delay: 0.16s; }
.why-grid .reveal:nth-child(4)     { transition-delay: 0.24s; }

.steps .reveal:nth-child(3)        { transition-delay: 0.10s; }
.steps .reveal:nth-child(5)        { transition-delay: 0.20s; }

/* 14. Responsive
   ============================================= */
@media (max-width: 960px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .hero-visual { display: none; }
  .hero-sub    { max-width: 100%; }

  .stats-grid  { grid-template-columns: repeat(2, 1fr); gap: 28px; }

  .products-grid { grid-template-columns: 1fr; }

  .why-grid { grid-template-columns: 1fr; }

  .steps {
    flex-direction: column;
    gap: 16px;
  }
  .step-connector { display: none; }

  .cta-inner { grid-template-columns: 1fr; }
  .cta-graphic { display: none; }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-legal { text-align: left; }

  /* Mobile nav overlay */
  .nav-links {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--white);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 36px;
    z-index: 199;
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 1.4rem; color: var(--navy); }

  .menu-toggle { display: flex; }
}

@media (max-width: 600px) {
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .product-card { padding: 28px; }
  .why-card { padding: 36px 28px; }
  .step { padding: 28px; }
  .hero { padding: 110px 0 70px; }
}

/* 15. Focus & Accessibility
   ============================================= */
:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}