/* ========================================
   InkBook Shop Owner Landing Page
   Dark, moody, bold. Tattoo world aesthetic.
   ======================================== */

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

/* === DESIGN TOKENS === */
:root {
  /* Typography */
  --font-display: 'Clash Grotesk', 'Helvetica Neue', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;

  /* Type scale (fluid) */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 8rem);

  /* Spacing (4px system) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Colors — Dark tattoo world palette */
  --color-bg: #0A0A0A;
  --color-surface: #111111;
  --color-surface-2: #1A1A1A;
  --color-border: #2A2A2A;
  --color-border-light: #333333;
  --color-text: #FFFFFF;
  --color-text-muted: #999999;
  --color-text-faint: #666666;

  /* CTA */
  --color-cta-bg: #FFFFFF;
  --color-cta-text: #0A0A0A;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-default: 960px;
  --content-wide: 1200px;
}

/* === BODY === */
body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

ul[role='list'], ol[role='list'] {
  list-style: none;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

h1, h2, h3, h4, h5, h6 {
  text-wrap: balance;
  line-height: 1.15;
  font-family: var(--font-display);
}

p, li, figcaption {
  text-wrap: pretty;
  max-width: 72ch;
}

::selection {
  background: rgba(255, 255, 255, 0.2);
  color: var(--color-text);
}

:focus-visible {
  outline: 2px solid var(--color-text);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

a, button, [role='button'], [role='link'] {
  transition:
    color var(--transition-interactive),
    background var(--transition-interactive),
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive),
    opacity var(--transition-interactive);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* === CONTAINER === */
.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-8);
  border-radius: var(--radius-md);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  letter-spacing: -0.01em;
}

.btn-primary {
  background: var(--color-cta-bg);
  color: var(--color-cta-text);
  border: 1px solid var(--color-cta-bg);
}

.btn-primary:hover {
  background: #E0E0E0;
  border-color: #E0E0E0;
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
  background: #CCCCCC;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-text);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-1px);
}

.btn-ghost:active {
  transform: translateY(0);
  background: rgba(255, 255, 255, 0.04);
}

.btn-sm {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-xs);
}

.btn-lg {
  padding: var(--space-4) var(--space-12);
  font-size: var(--text-base);
}

.btn-full {
  width: 100%;
}

/* === STICKY HEADER === */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-4) 0;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.site-header.scrolled {
  border-bottom-color: var(--color-border);
}

.header-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  color: var(--color-text);
  text-decoration: none;
}

.logo svg {
  height: 28px;
  width: auto;
}

/* === HERO === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: var(--space-24);
  padding-bottom: var(--space-16);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(40, 40, 40, 0.3) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 80%, rgba(30, 25, 20, 0.4) 0%, transparent 50%);
  pointer-events: none;
}

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

.hero-headline {
  font-size: var(--text-hero);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.0;
  margin-bottom: var(--space-6);
}

.hero-sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: var(--space-10);
  line-height: 1.5;
}

.hero-ctas {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-6);
}

.hero-note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.02em;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--color-text-faint), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
}

/* === SECTIONS === */
.section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
}

.section-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: clamp(var(--space-10), 4vw, var(--space-16));
  text-align: center;
}

/* === PAIN POINTS === */
.pain-points {
  background: var(--color-bg);
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.pain-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-6);
}

.pain-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--color-text);
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.pain-card p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* === SOLUTION / FEATURES === */
.solution {
  background: var(--color-bg);
}



.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.feature-card {
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-2);
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* === SOCIAL PROOF === */
.social-proof {
  position: relative;
  overflow: hidden;
  padding-block: clamp(var(--space-20), 10vw, var(--space-32));
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}



.proof-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.stats-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(var(--space-6), 4vw, var(--space-12));
  margin-bottom: var(--space-12);
  flex-wrap: wrap;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-transform: lowercase;
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--color-border-light);
}

.testimonial {
  max-width: 640px;
  margin-inline: auto;
}

.testimonial p {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-4);
  max-width: none;
}

.testimonial cite {
  font-style: normal;
  font-size: var(--text-sm);
  color: var(--color-text-faint);
}

/* === HOW IT WORKS === */
.how-it-works {
  background: var(--color-surface);
}

.steps-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.step {
  flex: 1;
  text-align: center;
  padding: var(--space-6);
}

.step-number {
  display: inline-block;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-border-light);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
  line-height: 1;
}

.step h3 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-2);
  letter-spacing: -0.01em;
}

.step p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-inline: auto;
}

.step-connector {
  flex-shrink: 0;
  width: 48px;
  height: 1px;
  background: var(--color-border);
  margin-top: 3.5rem;
}

/* === PRICING === */
.pricing {
  background: var(--color-bg);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  align-items: start;
}

.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  position: relative;
}

.pricing-card--featured {
  border-color: var(--color-text);
  background: var(--color-surface-2);
  transform: scale(1.04);
  z-index: 1;
}

.pricing-badge {
  position: absolute;
  top: calc(-1 * var(--space-3));
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-cta-bg);
  color: var(--color-cta-text);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  white-space: nowrap;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.pricing-header {
  margin-bottom: var(--space-6);
}

.pricing-header h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.pricing-amount {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
}

.price {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.period {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.pricing-features {
  list-style: none;
  margin-bottom: var(--space-8);
}

.pricing-features li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border);
  max-width: none;
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-features li::before {
  content: '✓';
  margin-right: var(--space-2);
  color: var(--color-text);
  font-weight: 600;
}

/* === DEPOSIT CTA === */
.deposit-cta {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding-block: clamp(var(--space-20), 10vw, var(--space-32));
  background:
    radial-gradient(ellipse at 30% 50%, rgba(40, 40, 40, 0.4) 0%, transparent 60%),
    var(--color-bg);
  border-top: 1px solid var(--color-border);
}



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

.deposit-content h2 {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.deposit-content p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-inline: auto;
  margin-bottom: var(--space-8);
  max-width: 480px;
}

/* === FINAL CTA === */
.final-cta {
  background: var(--color-surface);
  text-align: center;
  padding-block: clamp(var(--space-20), 10vw, var(--space-32));
}

.final-cta-content h2 {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.final-cta-content p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-inline: auto;
  margin-bottom: var(--space-8);
  max-width: 480px;
}

.final-cta-url {
  display: block;
  margin-top: var(--space-4);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  letter-spacing: 0.05em;
}

/* === FOOTER === */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-8) 0;
  background: var(--color-bg);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-copy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.footer-links a {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-text);
}

/* === SCROLL ANIMATIONS (JS IntersectionObserver) === */
.fade-in {
  opacity: 1;
}

.fade-in--hidden {
  opacity: 0;
  transform: translateY(12px);
}

.fade-in--visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-reduced-motion: reduce) {
  .fade-in--hidden {
    opacity: 1;
    transform: none;
  }
}

/* === RESPONSIVE === */

/* Tablet */
@media (max-width: 960px) {
  .pain-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }

  .pricing-card--featured {
    transform: scale(1.02);
  }

  .steps-row {
    flex-direction: column;
    align-items: center;
  }

  .step-connector {
    width: 1px;
    height: 32px;
    margin-top: 0;
  }

  .stat-divider {
    display: none;
  }
}

/* Mobile */
@media (max-width: 640px) {
  .container {
    padding-inline: var(--space-4);
  }

  .hero {
    min-height: 90vh;
    padding-top: var(--space-20);
  }

  .hero-headline {
    font-size: clamp(2.5rem, 0.5rem + 10vw, 4.5rem);
  }

  .hero-sub {
    font-size: var(--text-base);
  }

  .hero-ctas {
    flex-direction: column;
    align-items: center;
  }

  .hero-ctas .btn {
    width: 100%;
    max-width: 280px;
  }

  .pain-grid {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .feature-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

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

  .stats-row {
    flex-direction: column;
    gap: var(--space-6);
  }

  .steps-row {
    gap: var(--space-2);
  }

  .step {
    padding: var(--space-4);
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    justify-content: center;
    gap: var(--space-4);
  }

  .section-title {
    font-size: clamp(1.75rem, 1rem + 3vw, 2.5rem);
  }
}

/* Small mobile */
@media (max-width: 380px) {
  .hero-headline {
    font-size: 2.25rem;
  }
}