/* ==========================================================================
   SQUEALER — Stylesheet
   Aesthetic: Accountant's desk — warm paper tones, ledger lines,
   ink-dark type, strong serif headlines, monospaced data.
   ========================================================================== */

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

:root {
  /* Paper & desk palette */
  --paper:        #FAF6F0;
  --paper-warm:   #F3EDE3;
  --paper-dark:   #E8DFD1;
  --ink:          #1A1714;
  --ink-light:    #3D3730;
  --ink-faded:    #6B6259;
  --accent:       #8B4513;
  --accent-dark:  #6B3410;
  --accent-light: #B8763A;
  --ledger-line:  #D4C9B8;
  --ledger-green: #2D5A3D;
  --red-ink:      #8B2500;
  --white:        #FFFFFF;

  /* Type */
  --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body:    'Source Serif 4', Georgia, serif;
  --font-mono:    'JetBrains Mono', 'Courier New', monospace;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-dark);
}

/* --- TYPOGRAPHY --- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.15;
  color: var(--ink);
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  letter-spacing: -0.01em;
  margin-bottom: var(--space-sm);
}

h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

p {
  max-width: 680px;
  color: var(--ink-light);
}

em {
  font-style: italic;
  color: var(--accent);
}

kbd {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--paper-dark);
  border: 1px solid var(--ledger-line);
  border-radius: 3px;
  padding: 0.1em 0.4em;
}

/* --- LAYOUT --- */
.section-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--space-xl) 0;
}

.section-lead {
  font-size: 1.15rem;
  margin-bottom: var(--space-lg);
}

/* --- NAVIGATION --- */
.main-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 246, 240, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--ledger-line);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.35rem;
  color: var(--ink);
  text-decoration: none;
}

.nav-logo-img {
  height: 36px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: var(--space-md);
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink-faded);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--ink);
}

/* --- BUTTONS --- */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  padding: 0.85rem 2rem;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.btn-primary {
  background: var(--ink);
  color: var(--paper);
}

.btn-primary:hover {
  background: var(--ink-light);
  color: var(--paper);
}

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border: 2px solid var(--ink);
}

.btn-secondary:hover {
  background: var(--ink);
  color: var(--paper);
}

.btn-email {
  width: 100%;
  font-size: 1.1rem;
  padding: 1rem;
  background: var(--accent);
  color: var(--white);
}

.btn-email:hover {
  background: var(--accent-dark);
}

/* --- HERO --- */
.hero {
  position: relative;
  padding: var(--space-xl) 0 var(--space-lg);
  background: var(--paper);
  /* subtle ruled-paper lines */
  background-image:
    repeating-linear-gradient(
      transparent,
      transparent 39px,
      var(--ledger-line) 39px,
      var(--ledger-line) 40px
    );
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 0.3rem 0.8rem;
  border-radius: 2px;
  margin-bottom: var(--space-md);
}

.hero h1 {
  margin-bottom: var(--space-md);
}

.hero-sub {
  font-size: 1.2rem;
  line-height: 1.8;
  max-width: 600px;
  margin-bottom: var(--space-md);
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.hero-ledger-line {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(to right, var(--accent), var(--ledger-line), var(--accent));
}

/* --- TRUST BAR --- */
.trust-bar {
  background: var(--ink);
  padding: var(--space-sm) 0;
}

.trust-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--paper-warm);
  letter-spacing: 0.04em;
}

.trust-icon {
  color: var(--accent-light);
  font-size: 0.6rem;
}

/* --- PROBLEM SECTION --- */
.section-problem {
  background: var(--paper-warm);
  border-top: 1px solid var(--ledger-line);
  border-bottom: 1px solid var(--ledger-line);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.problem-card {
  background: var(--paper);
  border: 1px solid var(--ledger-line);
  padding: var(--space-md);
  border-radius: 2px;
  position: relative;
}

.problem-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--paper-dark);
  position: absolute;
  top: 12px;
  right: 16px;
}

.problem-card h3 {
  color: var(--red-ink);
  font-family: var(--font-display);
}

/* --- FEATURES --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-md);
}

.feature-card {
  padding: var(--space-md);
  border-left: 3px solid var(--ledger-line);
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-left-color: var(--accent);
}

.feature-icon {
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

/* --- STEPS --- */
.section-steps {
  background: var(--ink);
  color: var(--paper);
}

.section-steps h2 {
  color: var(--paper);
}

.steps-grid {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  flex-wrap: wrap;
}

.step {
  text-align: center;
  max-width: 220px;
}

.step-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  color: var(--accent-light);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.step h3 {
  color: var(--paper);
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.step p {
  color: var(--paper-dark);
  font-size: 0.95rem;
}

.step-arrow {
  font-size: 2rem;
  color: var(--ink-faded);
  padding-top: 1rem;
}

/* --- USE CASES --- */
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-md);
  margin-bottom: var(--space-md);
}

.usecase {
  background: var(--paper-warm);
  border: 1px solid var(--ledger-line);
  padding: var(--space-md);
  border-radius: 2px;
}

.usecase h3 {
  font-family: var(--font-display);
  color: var(--accent-dark);
}

.usecases-cta {
  text-align: center;
}

/* --- PRICING --- */
.section-pricing {
  background: var(--paper-warm);
  border-top: 1px solid var(--ledger-line);
}

.pricing-card {
  max-width: 480px;
  margin: 0 auto;
  background: var(--paper);
  border: 2px solid var(--ink);
  border-radius: 4px;
  overflow: hidden;
}

.pricing-header {
  background: var(--ink);
  color: var(--paper);
  padding: var(--space-md);
  text-align: center;
}

.pricing-header h2 {
  color: var(--paper);
  margin-bottom: 0.3rem;
  font-size: 1.4rem;
}

.pricing-header p {
  color: var(--paper-dark);
  margin: 0 auto;
  font-size: 0.95rem;
}

.pricing-body {
  padding: var(--space-md);
  text-align: center;
}

.pricing-amount {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.pricing-dollar {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 0.4rem;
}

.pricing-number {
  font-family: var(--font-display);
  font-size: 4.5rem;
  font-weight: 900;
  line-height: 1;
}

.pricing-cents {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 0.4rem;
}

.pricing-period {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink-faded);
  margin-top: 1.2rem;
  margin-left: 0.3rem;
}

.pricing-list {
  list-style: none;
  text-align: left;
  margin-bottom: var(--space-md);
}

.pricing-list li {
  font-size: 0.95rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--ledger-line);
  color: var(--ink-light);
}

.pricing-list li::before {
  content: "\2713";
  color: var(--ledger-green);
  font-weight: 700;
  margin-right: 0.6rem;
}

.pricing-email-note {
  margin-top: var(--space-sm);
  font-size: 0.85rem;
  color: var(--ink-faded);
  opacity: 0.7;
  transition: opacity 0.3s;
}

.pricing-email-note.visible {
  opacity: 1;
}

/* --- FOOTER --- */
.site-footer {
  background: var(--ink);
  color: var(--paper-dark);
  padding: var(--space-lg) 0 var(--space-md);
  border-top: 3px solid var(--accent);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer-logo-img {
  height: 30px;
  width: auto;
}

.footer-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.2rem;
  color: var(--paper);
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--ink-faded);
}

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

.footer-links a {
  font-size: 0.9rem;
  color: var(--paper-dark);
}

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

.footer-contact p {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--paper-dark);
}


/* ==========================================================================
   DATA GUIDE PAGE
   ========================================================================== */

.guide-page {
  background: var(--paper);
}

/* Guide Hero */
.guide-hero {
  padding: var(--space-lg) 0;
  background: var(--ink);
  border-bottom: 3px solid var(--accent);
}

.guide-hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.guide-hero h1 {
  color: var(--paper);
  margin-bottom: var(--space-sm);
}

.guide-hero-sub {
  color: var(--paper-dark);
  font-size: 1.1rem;
  max-width: 700px;
}

/* Table of Contents */
.guide-toc {
  padding: var(--space-md) 0;
}

.toc-card {
  background: var(--paper-warm);
  border: 1px solid var(--ledger-line);
  border-left: 4px solid var(--accent);
  padding: var(--space-md);
  border-radius: 2px;
}

.toc-card h2 {
  font-size: 1.1rem;
  margin-bottom: var(--space-sm);
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.toc-card ol {
  padding-left: 1.2rem;
}

.toc-card li {
  padding: 0.3rem 0;
  font-size: 0.95rem;
}

.toc-card a {
  color: var(--ink-light);
  border-bottom: 1px solid var(--ledger-line);
}

.toc-card a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Guide Sections */
.guide-section {
  padding: var(--space-lg) 0;
}

.guide-section.alt-bg {
  background: var(--paper-warm);
}

.guide-section h2 {
  margin-bottom: var(--space-sm);
}

.guide-section > .section-inner > p {
  margin-bottom: var(--space-md);
}

/* Guide Steps */
.guide-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.guide-step {
  background: var(--paper);
  border: 1px solid var(--ledger-line);
  padding: var(--space-md);
  border-radius: 2px;
  position: relative;
}

.alt-bg .guide-step {
  background: var(--white);
}

.guide-step-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.guide-step h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
}

.guide-step p {
  font-size: 0.95rem;
  margin-bottom: 0.8rem;
}

.guide-step p:last-child {
  margin-bottom: 0;
}

/* Code Blocks */
.code-block {
  background: var(--ink);
  border-radius: 4px;
  overflow: hidden;
  margin: var(--space-sm) 0;
}

.code-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faded);
  background: #2A2520;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid #3D3730;
}

.code-block pre {
  padding: 1rem;
  overflow-x: auto;
}

.code-block code {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.7;
  color: #E8DFD1;
}

/* Tables */
.table-wrap {
  overflow-x: auto;
  margin: var(--space-sm) 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

thead {
  background: var(--ink);
  color: var(--paper);
}

th {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: left;
  padding: 0.7rem 1rem;
}

td {
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--ledger-line);
  color: var(--ink-light);
}

tbody tr:hover {
  background: var(--paper-warm);
}

/* Guide Tip */
.guide-tip {
  background: var(--paper-warm);
  border-left: 4px solid var(--accent);
  padding: var(--space-sm) var(--space-md);
  margin-top: var(--space-md);
  font-size: 0.95rem;
  border-radius: 0 2px 2px 0;
}

.guide-tip strong {
  color: var(--accent-dark);
}

/* Chart Types Grid */
.chart-types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.chart-type-card {
  background: var(--white);
  border: 1px solid var(--ledger-line);
  padding: var(--space-md);
  border-radius: 2px;
}

.chart-type-card h3 {
  font-family: var(--font-display);
  color: var(--ink);
  margin-bottom: 0.4rem;
}

.chart-type-best {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.8rem;
}

.chart-type-card p {
  font-size: 0.92rem;
  margin-bottom: 0.8rem;
}

.chart-type-how {
  background: var(--paper-warm);
  padding: 0.6rem 0.8rem;
  border-radius: 2px;
  font-size: 0.85rem;
  color: var(--ink-light);
}

/* Guide CTA */
.guide-cta {
  text-align: center;
  background: var(--ink);
  padding: var(--space-lg) 0;
}

.guide-cta h2 {
  color: var(--paper);
}

.guide-cta p {
  color: var(--paper-dark);
  margin: 0 auto var(--space-md);
  max-width: 500px;
}


/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 768px) {
  .nav-links {
    gap: var(--space-sm);
  }

  .nav-links a {
    font-size: 0.8rem;
  }

  .hero {
    padding: var(--space-lg) 0 var(--space-md);
  }

  .trust-inner {
    justify-content: center;
    text-align: center;
  }

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

  .step-arrow {
    transform: rotate(90deg);
    padding: 0;
  }

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

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .chart-types-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 480px) {
  .nav-inner {
    flex-direction: column;
    height: auto;
    padding: var(--space-sm) var(--space-sm);
    gap: 0.5rem;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    text-align: center;
  }

  .pricing-card {
    margin: 0 -0.5rem;
  }
}