/* ==========================================================================
   THE AI-POWERED SMALL BUSINESS PLAYBOOK - DESIGN SYSTEM & CORE STYLES
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Brand Palette */
  --color-primary: #0f172a;       /* Deep Navy / Slate 900 */
  --color-primary-light: #1e293b; /* Slate 800 */
  --color-secondary: #2563eb;     /* Professional Blue */
  --color-accent: #d97706;        /* Warm Amber 600 */
  --color-accent-light: #f59e0b;  /* Amber 500 */
  --color-accent-bg: #fffbeb;     /* Amber 50 */
  --color-accent-border: #fcd34d; /* Amber 300 */

  /* Neutral Spectrum */
  --color-bg-main: #f8fafc;       /* Slate 50 */
  --color-bg-card: #ffffff;
  --color-bg-subtle: #f1f5f9;     /* Slate 100 */
  --color-border: #e2e8f0;        /* Slate 200 */
  --color-border-subtle: #cbd5e1; /* Slate 300 */
  --color-text-main: #0f172a;     /* Slate 900 */
  --color-text-muted: #475569;    /* Slate 600 */
  --color-text-light: #64748b;    /* Slate 500 */
  --color-text-inverse: #ffffff;

  /* Feedback Colors */
  --color-success: #059669;       /* Emerald 600 */
  --color-success-bg: #ecfdf5;    /* Emerald 50 */
  --color-success-border: #a7f3d0;/* Emerald 200 */
  --color-warning: #b45309;       /* Amber 700 */
  --color-warning-bg: #fef3c7;    /* Amber 100 */

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', Consolas, Monaco, monospace;

  /* Spacing */
  --container-max-w: 1200px;
  --header-height: 72px;

  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 2px 4px -1px rgba(15, 23, 42, 0.06), 0 1px 2px -1px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
  --shadow-xl: 0 25px 50px -12px rgba(15, 23, 42, 0.18);
  --shadow-glow: 0 0 24px -4px rgba(217, 119, 6, 0.25);

  /* Border Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-main);
  background-color: var(--color-bg-main);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: inherit;
  text-decoration: none;
}

/* Accessibility Focus */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max-w);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section-padding {
  padding-top: 80px;
  padding-bottom: 80px;
}

.text-center { text-align: center; }
.text-left { text-align: left; }

/* --------------------------------------------------------------------------
   ANNOUNCEMENT BAR
   -------------------------------------------------------------------------- */
.announcement-bar {
  background-color: #0b1120;
  color: #e2e8f0;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 10px 16px;
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.announcement-bar-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.announcement-tag {
  background: rgba(245, 158, 11, 0.2);
  color: #fbbf24;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

/* --------------------------------------------------------------------------
   NAVBAR / HEADER
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo-img {
  height: 42px;
  width: auto;
  max-width: 220px;
  display: block;
}

.currency-switcher-nav {
  display: inline-flex;
  align-items: center;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 3px;
  gap: 2px;
}

.currency-btn {
  background: transparent;
  border: none;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 5px;
}

.currency-btn:hover {
  color: var(--color-primary);
}

.currency-btn.active {
  background: #ffffff;
  color: var(--color-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.discount-pill {
  display: inline-flex;
  align-items: center;
  background: #fee2e2;
  color: #dc2626;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  border: 1px solid #fecaca;
  margin-left: 10px;
  vertical-align: middle;
  text-transform: uppercase;
}

.mrp-strike {
  text-decoration: line-through;
  color: #94a3b8;
  font-size: 1.25rem;
  font-weight: 600;
  margin-left: 10px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-menu a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.nav-menu a:hover {
  color: var(--color-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* --------------------------------------------------------------------------
   BUTTONS & CALLS TO ACTION
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.25;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 4px 14px 0 rgba(15, 23, 42, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px 0 rgba(15, 23, 42, 0.35);
}

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

.btn-accent {
  background: linear-gradient(135deg, #d97706 0%, #b45309 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px 0 rgba(217, 119, 6, 0.3);
}

.btn-accent:hover {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px 0 rgba(217, 119, 6, 0.45);
}

.btn-secondary {
  background: #ffffff;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover {
  background: var(--color-bg-subtle);
  border-color: var(--color-border-subtle);
  transform: translateY(-1px);
}

.btn-lg {
  font-size: 1.125rem;
  padding: 18px 36px;
  letter-spacing: 0.01em;
}

.btn-sm {
  font-size: 0.875rem;
  padding: 10px 18px;
}

.btn-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   HERO SECTION
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  background: radial-gradient(circle at 10% 20%, rgba(245, 158, 11, 0.05) 0%, transparent 40%),
              radial-gradient(circle at 90% 80%, rgba(37, 99, 235, 0.04) 0%, transparent 45%),
              #ffffff;
  border-bottom: 1px solid var(--color-border);
  padding-top: 64px;
  padding-bottom: 84px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.hero-badge-wrap {
  margin-bottom: 20px;
}

.pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-accent-bg);
  color: var(--color-accent);
  border: 1px solid var(--color-accent-border);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.hero-title {
  font-size: clamp(2.25rem, 4.5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.hero-title .highlight {
  color: var(--color-accent);
  background: linear-gradient(135deg, #d97706 0%, #b45309 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.1875rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin-bottom: 32px;
  max-width: 620px;
}

.hero-benefits-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 36px;
}

.hero-benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-main);
}

.check-icon-circle {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-success-bg);
  border: 1px solid var(--color-success-border);
  color: var(--color-success);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.hero-cta-group {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 440px;
}

.hero-meta-note {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-meta-note svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* Hero Book Visual Presentation */
.hero-visual-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.cover-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.25), 0 10px 20px -5px rgba(15, 23, 42, 0.1);
  overflow: hidden;
  max-width: 400px;
  width: 100%;
  transition: transform var(--transition-normal);
}

.cover-wrapper:hover {
  transform: translateY(-6px);
}

.cover-wrapper img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.mockup-disclaimer-pill {
  margin-top: 14px;
  font-size: 0.75rem;
  color: var(--color-text-light);
  background: rgba(241, 245, 249, 0.9);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  text-align: center;
}

.cover-spec-chips {
  display: flex;
  gap: 10px;
  margin-top: 18px;
  flex-wrap: wrap;
  justify-content: center;
}

.spec-chip {
  background: #ffffff;
  border: 1px solid var(--color-border);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary);
  box-shadow: var(--shadow-xs);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* --------------------------------------------------------------------------
   PROBLEM & OPPORTUNITY SECTION
   -------------------------------------------------------------------------- */
.problem-section {
  background-color: var(--color-bg-main);
  border-bottom: 1px solid var(--color-border);
}

.section-header {
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 56px;
}

.section-label {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 12px;
  display: block;
}

.section-heading {
  font-size: clamp(1.875rem, 3.2vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--color-primary);
  margin-bottom: 18px;
}

.section-description {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.problem-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.problem-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-subtle);
  box-shadow: var(--shadow-md);
}

.problem-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: #fee2e2;
  color: #dc2626;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.problem-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
  line-height: 1.3;
}

.problem-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.problem-solution-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-secondary);
  border-top: 1px solid var(--color-bg-subtle);
  padding-top: 16px;
}

/* --------------------------------------------------------------------------
   THE PRACTICAL SOLUTION & METHODOLOGY
   -------------------------------------------------------------------------- */
.solution-section {
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
}

.framework-banner {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: #ffffff;
  border-radius: var(--radius-xl);
  padding: 44px;
  margin-bottom: 60px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.framework-banner .kicker {
  color: #f59e0b;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.framework-equation {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
  line-height: 1.35;
}

.framework-equation span {
  color: #38bdf8;
}

.framework-banner p {
  font-size: 1rem;
  color: #cbd5e1;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.process-steps-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.step-card {
  background: var(--color-bg-main);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  position: relative;
}

.step-num {
  font-size: 0.8125rem;
  font-weight: 800;
  color: var(--color-accent);
  background: var(--color-accent-bg);
  border: 1px solid var(--color-accent-border);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: 14px;
}

.step-card h4 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.step-card p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   WHAT IS INSIDE (CURRICULUM / TOPICS GRID)
   -------------------------------------------------------------------------- */
.curriculum-section {
  background: var(--color-bg-main);
  border-bottom: 1px solid var(--color-border);
}

.curriculum-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 24px;
}

.curriculum-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.curriculum-card:hover {
  border-color: var(--color-accent-border);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.curriculum-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.chapter-badge {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-light);
  background: var(--color-bg-subtle);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.curriculum-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: #f1f5f9;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.curriculum-card h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
  line-height: 1.3;
}

.curriculum-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: 16px;
  flex-grow: 1;
}

.curriculum-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.mini-tag {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-bg-subtle);
  padding: 3px 8px;
  border-radius: 4px;
}

/* --------------------------------------------------------------------------
   WHO IS THIS FOR / WHO IS THIS NOT FOR
   -------------------------------------------------------------------------- */
.audience-section {
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
}

.audience-split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}

.audience-column {
  border-radius: var(--radius-xl);
  padding: 40px;
  border: 1px solid var(--color-border);
}

.audience-column.for-you {
  background: #f8fafc;
  border-top: 4px solid var(--color-success);
}

.audience-column.not-for-you {
  background: #f8fafc;
  border-top: 4px solid #ef4444;
}

.audience-column h3 {
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.audience-column p.sub {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.audience-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.audience-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--color-text-main);
}

.icon-check {
  color: var(--color-success);
  flex-shrink: 0;
  margin-top: 2px;
}

.icon-cross {
  color: #ef4444;
  flex-shrink: 0;
  margin-top: 2px;
}

/* --------------------------------------------------------------------------
   PRACTICAL ARCHITECTURE FEATURES (CARDS)
   -------------------------------------------------------------------------- */
.practical-section {
  background: var(--color-bg-main);
  border-bottom: 1px solid var(--color-border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-box {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.feature-box-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-accent-bg);
  border: 1px solid var(--color-accent-border);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-box h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.feature-box p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* --------------------------------------------------------------------------
   LIVE SAMPLE PROMPT PREVIEW SECTION
   -------------------------------------------------------------------------- */
.sample-section {
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
}

.sample-container-card {
  background: #0b1120;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #ffffff;
  padding: 44px;
  box-shadow: var(--shadow-xl);
}

.sample-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 20px;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 16px;
}

.sample-meta {
  display: flex;
  align-items: center;
  gap: 14px;
}

.sample-tag-gold {
  background: #f59e0b;
  color: #0f172a;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.sample-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #f8fafc;
}

.btn-copy-sample {
  background: rgba(255, 255, 255, 0.08);
  color: #f8fafc;
  border: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 0.875rem;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.btn-copy-sample:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.3);
}

.sample-prompt-box {
  background: #020617;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: #e2e8f0;
  margin-bottom: 24px;
  white-space: pre-wrap;
  word-break: break-word;
}

.sample-prompt-box .bracket {
  color: #38bdf8;
  font-weight: 600;
  background: rgba(56, 189, 248, 0.1);
  padding: 1px 4px;
  border-radius: 4px;
}

.sample-prompt-box .num-marker {
  color: #fbbf24;
  font-weight: 700;
}

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

.sample-detail-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 20px;
}

.sample-detail-card h5 {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sample-detail-card.human-check h5 {
  color: #fbbf24;
}

.sample-detail-card.expected-output h5 {
  color: #34d399;
}

.sample-detail-card p {
  font-size: 0.875rem;
  color: #94a3b8;
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   BENEFITS SECTION
   -------------------------------------------------------------------------- */
.benefits-section {
  background: var(--color-bg-main);
  border-bottom: 1px solid var(--color-border);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.benefit-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 20px;
  transition: all var(--transition-normal);
}

.benefit-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.benefit-icon-badge {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--color-accent-bg);
  border: 1px solid var(--color-accent-border);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.benefit-content h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  line-height: 1.3;
}

.benefit-content p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* --------------------------------------------------------------------------
   PRODUCT & PURCHASE SECTION
   -------------------------------------------------------------------------- */
.purchase-section {
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
}

.purchase-card {
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  border: 2px solid var(--color-border-subtle);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-xl);
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: center;
}

.purchase-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.purchase-visual img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  max-width: 320px;
}

.purchase-details h3 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.25;
  margin-bottom: 8px;
}

.purchase-subtitle {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
  line-height: 1.5;
}

.package-inclusions {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.package-inclusions li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-main);
}

.package-inclusions svg {
  color: var(--color-success);
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.price-lockup {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 10px;
}

.price-display {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.price-note {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.cta-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.purchase-delivery-guarantee {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* --------------------------------------------------------------------------
   FAQ ACCORDION SECTION
   -------------------------------------------------------------------------- */
.faq-section {
  background: var(--color-bg-main);
  border-bottom: 1px solid var(--color-border);
}

.faq-container {
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--color-border-subtle);
}

.faq-item.active {
  border-color: var(--color-accent-border);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  padding: 22px 24px;
  text-align: left;
  background: transparent;
  border: none;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.faq-icon-chevron {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-normal);
  color: var(--color-text-light);
  flex-shrink: 0;
}

.faq-item.active .faq-icon-chevron {
  transform: rotate(180deg);
  color: var(--color-accent);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
  padding: 0 24px;
}

.faq-item.active .faq-answer {
  max-height: 380px;
  padding: 0 24px 22px 24px;
}

.faq-answer p {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   FINAL CTA SECTION
   -------------------------------------------------------------------------- */
.final-cta-section {
  background: radial-gradient(circle at 50% 50%, #1e293b 0%, #0f172a 100%);
  color: #ffffff;
  padding-top: 84px;
  padding-bottom: 84px;
  text-align: center;
}

.final-cta-card {
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.final-cta-heading {
  font-size: clamp(2rem, 3.8vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 18px;
  line-height: 1.2;
}

.final-cta-sub {
  font-size: 1.125rem;
  color: #cbd5e1;
  margin-bottom: 36px;
  line-height: 1.6;
}

.final-cta-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

/* --------------------------------------------------------------------------
   FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  background: #090d16;
  color: #94a3b8;
  padding-top: 64px;
  padding-bottom: 40px;
  font-size: 0.875rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand h4 {
  color: #f8fafc;
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-brand p {
  line-height: 1.6;
  max-width: 380px;
}

.footer-col h5 {
  color: #f8fafc;
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: #94a3b8;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-legal-notice {
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.8125rem;
  color: #64748b;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   MODAL & TOAST COMPONENT
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  padding: 20px;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: #ffffff;
  border-radius: var(--radius-lg);
  max-width: 580px;
  width: 100%;
  padding: 32px;
  box-shadow: var(--shadow-xl);
  transform: translateY(20px);
  transition: transform var(--transition-normal);
  position: relative;
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text-light);
  padding: 4px;
}

.modal-close-btn:hover {
  color: var(--color-primary);
}

.modal-icon-header {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--color-accent-bg);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.modal-content h3 {
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.modal-content p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

.config-code-box {
  background: #0f172a;
  color: #38bdf8;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  word-break: break-all;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Toast Component */
.toast-notice {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #0f172a;
  color: #ffffff;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.875rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 1100;
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-normal);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.toast-notice.show {
  transform: translateY(0);
  opacity: 1;
}

/* Floating Bottom CTA Bar for Mobile Viewports */
.mobile-sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--color-border);
  padding: 12px 20px;
  z-index: 90;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.05);
}

.mobile-sticky-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}