/* ==========================================================================
   FABOOLS DESIGN SYSTEM — Bespoke High-Converting Agency Style
   Based on Landing Page Design Skill: Geist typography, Tailwind scale,
   strict spacing tokens, flat backgrounds, text-gradient hero, B11 Tagline Reveal
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Geist:wght@400;500;600;700&display=swap');

:root {
  /* Brand Theme Colors */
  --color-forest-ink: #163300;
  --color-lime-voltage: #9fe870;
  --color-spruce: #054d28;
  --color-linen-mist: #e2f6d5;
  --color-signal-blue: #0b4c72;
  --color-alarm-red: #cb272f;
  --color-charcoal: #454745;
  --color-obsidian: #0e0f0c;
  --color-pebble: #868685;
  --color-slate: #6a6c6a;
  --color-fog: #e8ebe6;
  --color-paper: #ffffff;

  /* Typography */
  --font-family: 'Geist', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* Spacing Tokens (Strict B2 Table) */
  --spacing-0: 0px;
  --spacing-25: 2px;
  --spacing-50: 4px;
  --spacing-75: 8px;
  --spacing-100: 12px;
  --spacing-200: 16px;
  --spacing-300: 24px;
  --spacing-400: 32px;
  --spacing-500: 40px;
  --spacing-600: 48px;
  --spacing-700: 64px;
  --spacing-800: 80px;
  --spacing-900: 96px;

  /* Radius Tokens (B3) */
  --radius-sm: 2px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-2xl: 16px;
  --radius-3xl: 24px;
  --radius-full: 9999px;

  /* Motion Curves (B7) */
  --ease-base: cubic-bezier(0.22, 1, 0.36, 1);
  --duration-layout: 500ms;
  --duration-hover: 300ms;

  /* Layout */
  --container-max: 1200px;
}

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

html {
  font-family: var(--font-family);
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--color-paper);
  color: var(--color-obsidian);
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-color: var(--color-paper);
  color: var(--color-obsidian);
  line-height: 24px; /* text-base paired */
}

/* Skip link for keyboard users (B10) */
.skip-link {
  position: absolute;
  top: -60px;
  left: var(--spacing-200);
  background: var(--color-forest-ink);
  color: var(--color-paper);
  padding: var(--spacing-75) var(--spacing-200);
  border-radius: var(--radius-lg);
  font-size: 14px;
  font-weight: 600;
  z-index: 9999;
  transition: top var(--duration-hover) var(--ease-base);
}

.skip-link:focus {
  top: var(--spacing-200);
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-hover) var(--ease-base),
              opacity var(--duration-hover) var(--ease-base);
}

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

/* ==========================================================================
   B1 Typography Scale & Copy Rules (Sentence case, text-wrap balance)
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  text-wrap: balance;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-forest-ink);
}

p {
  text-wrap: pretty;
  color: var(--color-charcoal);
}

/* Strict Type Scale */
.text-xs {
  font-size: 12px;
  line-height: 16px;
}

.text-sm {
  font-size: 14px;
  line-height: 20px;
}

.text-base {
  font-size: 16px;
  line-height: 24px;
}

.text-lg {
  font-size: 18px;
  line-height: 28px;
}

.text-xl {
  font-size: 20px;
  line-height: 28px;
}

.text-2xl {
  font-size: 24px;
  line-height: 32px;
}

.text-3xl {
  font-size: 30px;
  line-height: 36px;
}

.text-4xl {
  font-size: 36px;
  line-height: 40px;
}

.text-5xl {
  font-size: clamp(36px, 5vw, 48px);
  line-height: 1;
}

.text-6xl {
  font-size: clamp(42px, 6vw, 60px);
  line-height: 1;
  letter-spacing: -0.03em;
}

.text-7xl {
  font-size: clamp(48px, 7vw, 72px);
  line-height: 1;
  letter-spacing: -0.035em;
}

/* B5 Hero text gradient (Only place gradients are allowed, text-only) */
.hero-gradient-text {
  background: linear-gradient(90deg, #163300 0%, #6a6c6a 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* ==========================================================================
   Layout Containers & Flat Backgrounds (B4: No background gradients)
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-300);
  padding-right: var(--spacing-300);
}

.container-narrow {
  width: 100%;
  max-width: 680px; /* B5 strict max-width */
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-300);
  padding-right: var(--spacing-300);
}

.section {
  padding-top: var(--spacing-700);
  padding-bottom: var(--spacing-700);
  position: relative;
}

@media (min-width: 768px) {
  .section {
    padding-top: var(--spacing-900);
    padding-bottom: var(--spacing-900);
  }
}

.bg-paper { background-color: var(--color-paper); }
.bg-fog { background-color: var(--color-fog); }
.bg-linen { background-color: var(--color-linen-mist); }
.bg-forest { background-color: var(--color-forest-ink); color: var(--color-paper); }

/* ==========================================================================
   B7 Floating Navigation Bar
   Resting state: Floats off top edge, centered and sized to content,
   translucent surface over backdrop blur.
   ========================================================================== */

.nav-wrapper {
  position: fixed;
  top: var(--spacing-200);
  left: 0;
  width: 100%;
  z-index: 1000;
  display: flex;
  justify-content: center;
  padding-left: var(--spacing-200);
  padding-right: var(--spacing-200);
  pointer-events: none;
}

.floating-navbar {
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-400);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(14, 15, 12, 0.08);
  border-radius: var(--radius-full);
  padding: var(--spacing-75) var(--spacing-200);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
  transition: transform var(--duration-hover) var(--ease-base),
              background var(--duration-hover) var(--ease-base);
  max-width: 960px;
  width: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-100);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-forest-ink);
  letter-spacing: -0.02em;
}

.nav-logo-img {
  width: 28px;
  height: 28px;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.nav-links {
  display: none;
  align-items: center;
  gap: var(--spacing-100);
  list-style: none;
}

@media (min-width: 800px) {
  .nav-links {
    display: flex;
  }
}

.nav-link {
  font-size: 14px;
  line-height: 20px;
  font-weight: 600;
  color: var(--color-charcoal);
  padding: var(--spacing-50) var(--spacing-100);
  border-radius: var(--radius-full);
  transition: all var(--duration-hover) var(--ease-base);
}

.nav-link:hover {
  color: var(--color-forest-ink);
  background: var(--color-fog);
}

.nav-link.active {
  color: var(--color-forest-ink);
  background: var(--color-linen-mist);
}

/* Nav Action & Hamburger */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-100);
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 36px;
  height: 36px;
  background: var(--color-fog);
  border: 1px solid rgba(14, 15, 12, 0.06);
  border-radius: var(--radius-full);
  cursor: pointer;
  padding: 8px;
  transition: all var(--duration-hover) var(--ease-base);
}

@media (min-width: 800px) {
  .nav-toggle {
    display: none;
  }
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--color-forest-ink);
  border-radius: 2px;
  transition: transform var(--duration-layout) var(--ease-base),
              opacity var(--duration-layout) var(--ease-base);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
  transform: scale(0.2);
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Full Height Mobile Menu Panel (B7) */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100vh;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: var(--spacing-800) var(--spacing-300) var(--spacing-400);
  flex-direction: column;
  justify-content: space-between;
  z-index: 999;
  overflow-y: auto;
}

.mobile-menu.open {
  display: flex;
  animation: fadeIn 300ms var(--ease-base) forwards;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-200);
}

/* B7 Link Entrance: step 60ms */
.mobile-nav-link {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-forest-ink);
  padding: var(--spacing-100) var(--spacing-200);
  border-radius: var(--radius-xl);
  opacity: 0;
  transform: translateY(24px);
  transition: transform 400ms var(--ease-base), opacity 400ms var(--ease-base);
}

.mobile-menu.open .mobile-nav-link {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu.open .mobile-nav-link:nth-child(1) { transition-delay: 60ms; }
.mobile-menu.open .mobile-nav-link:nth-child(2) { transition-delay: 120ms; }
.mobile-menu.open .mobile-nav-link:nth-child(3) { transition-delay: 180ms; }
.mobile-menu.open .mobile-nav-link:nth-child(4) { transition-delay: 240ms; }
.mobile-menu.open .mobile-nav-link:nth-child(5) { transition-delay: 300ms; }

/* ==========================================================================
   B1 & B2 Buttons (Strict: 8px vertical, 12px horizontal padding)
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-75);
  font-size: 16px; /* text-base */
  line-height: 24px;
  font-weight: 600;
  padding: 8px 16px; /* B2 Main button padding */
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--duration-hover) var(--ease-base),
              background var(--duration-hover) var(--ease-base),
              border-color var(--duration-hover) var(--ease-base),
              box-shadow var(--duration-hover) var(--ease-base);
  white-space: nowrap;
  user-select: none;
}

.btn-header {
  font-size: 14px; /* text-sm */
  line-height: 20px;
  padding: 6px 12px;
}

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

.btn-primary:hover {
  background-color: var(--color-spruce);
  transform: translateY(-1px);
}

.btn-primary:active,
.btn-lime:active,
.btn-secondary:active {
  transform: scale(0.98); /* B9 physical feedback */
}

.btn-primary:focus-visible,
.btn-lime:focus-visible,
.btn-secondary:focus-visible {
  outline: 2px solid var(--color-forest-ink);
  outline-offset: 2px;
}

.btn-lime {
  background-color: var(--color-lime-voltage);
  color: var(--color-forest-ink);
  border-color: var(--color-lime-voltage);
  font-weight: 700;
}

.btn-lime:hover {
  background-color: #8ce458;
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--color-paper);
  color: var(--color-forest-ink);
  border-color: rgba(14, 15, 12, 0.15);
}

.btn-secondary:hover {
  background-color: var(--color-fog);
  border-color: var(--color-forest-ink);
}

/* ==========================================================================
   B3 Nested Radius Card System (inner radius = outer radius - gap)
   ========================================================================== */

.card {
  background: var(--color-paper);
  border-radius: var(--radius-2xl); /* 16px */
  border: 1px solid rgba(14, 15, 12, 0.08); /* B4: All the way around */
  padding: var(--spacing-400); /* 32px */
  transition: transform var(--duration-hover) var(--ease-base),
              border-color var(--duration-hover) var(--ease-base),
              box-shadow var(--duration-hover) var(--ease-base);
  position: relative;
}

.card:hover {
  transform: translateY(-2px);
  border-color: rgba(22, 51, 0, 0.18);
  box-shadow: 0 12px 32px rgba(22, 51, 0, 0.06);
}

/* Nested element inside card with 8px gap -> inner radius 16 - 8 = 8px (rounded-lg) */
.card-inner-box {
  border-radius: var(--radius-lg);
  padding: var(--spacing-200);
  background: var(--color-fog);
}

.card-linen {
  background: var(--color-linen-mist);
  border-color: rgba(5, 77, 40, 0.14);
}

.card-forest {
  background: var(--color-forest-ink);
  color: var(--color-paper);
  border-color: rgba(255, 255, 255, 0.12);
}

.card-forest h3, .card-forest h4, .card-forest p {
  color: var(--color-paper);
}

/* Grids */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-300);
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-300);
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-300);
}

@media (min-width: 600px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ==========================================================================
   B11 Mandatory Tagline Reveal Section
   Words start in subtle muted tone (30% opacity) and activate individually
   ========================================================================== */

.tagline-reveal-section {
  padding-top: var(--spacing-800);
  padding-bottom: var(--spacing-800);
  background-color: var(--color-paper);
}

.tagline-reveal-container {
  max-width: 680px; /* B5 cap */
  margin: 0 auto;
  text-align: left;
}

.tagline-reveal-text {
  font-size: clamp(32px, 5vw, 48px); /* text-4xl to text-5xl */
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--color-forest-ink);
}

.tagline-word {
  opacity: 0.25;
  transition: opacity 600ms var(--ease-base),
              transform 600ms var(--ease-base);
  display: inline-block;
  will-change: opacity, transform;
}

.tagline-word.revealed {
  opacity: 1;
}

/* ==========================================================================
   B7 Scroll Reveals (Rise 32px / Spacing-400 and fade over 600-800ms)
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(var(--spacing-400));
  transition: opacity 700ms var(--ease-base),
              transform 700ms var(--ease-base);
  will-change: opacity, transform;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Proof Strips & Metrics
   ========================================================================== */

.proof-strip {
  display: flex;
  align-items: center;
  gap: var(--spacing-200);
  padding: var(--spacing-100) 0;
}

.proof-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-75);
  font-size: 14px;
  line-height: 20px;
  font-weight: 600;
  color: var(--color-charcoal);
}

.proof-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background-color: var(--color-lime-voltage);
}

/* ==========================================================================
   FAQ Section (Accordion style)
   ========================================================================== */

.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-200);
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-paper);
  border: 1px solid rgba(14, 15, 12, 0.08);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: border-color var(--duration-hover) var(--ease-base);
}

.faq-item:hover {
  border-color: rgba(22, 51, 0, 0.2);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: var(--spacing-300);
  background: transparent;
  border: none;
  font-size: 18px;
  line-height: 28px;
  font-weight: 700;
  color: var(--color-forest-ink);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-200);
}

.faq-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  transition: transform var(--duration-layout) var(--ease-base);
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 var(--spacing-300);
  transition: max-height var(--duration-layout) var(--ease-base),
              padding var(--duration-layout) var(--ease-base);
}

.faq-item.open .faq-answer {
  max-height: 280px;
  padding-bottom: var(--spacing-300);
}

/* ==========================================================================
   Form System & Validation States (B9)
   ========================================================================== */

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-75);
  margin-bottom: var(--spacing-300);
}

.form-label {
  font-size: 14px;
  line-height: 20px;
  font-weight: 600;
  color: var(--color-forest-ink);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-100) var(--spacing-200);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(14, 15, 12, 0.16);
  background-color: var(--color-paper);
  color: var(--color-obsidian);
  font-size: 16px;
  line-height: 24px;
  transition: border-color var(--duration-hover) var(--ease-base),
              box-shadow var(--duration-hover) var(--ease-base);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-forest-ink);
  box-shadow: 0 0 0 2px rgba(159, 232, 112, 0.5); /* B9 Focus ring */
}

.form-input.is-invalid,
.form-select.is-invalid,
.form-textarea.is-invalid {
  border-color: var(--color-alarm-red);
  box-shadow: 0 0 0 2px rgba(203, 39, 47, 0.2);
}

.form-error {
  font-size: 12px;
  line-height: 16px;
  color: var(--color-alarm-red);
  font-weight: 600;
  display: none;
}

.form-error.active {
  display: block;
}

/* Form success message box */
.form-success-alert {
  display: none;
  background: var(--color-linen-mist);
  border: 1px solid rgba(5, 77, 40, 0.2);
  border-radius: var(--radius-xl);
  padding: var(--spacing-300);
  margin-top: var(--spacing-300);
}

.form-success-alert.active {
  display: block;
  animation: fadeIn 300ms var(--ease-base);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background-color: var(--color-forest-ink);
  color: var(--color-paper);
  padding-top: var(--spacing-800);
  padding-bottom: var(--spacing-500);
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.site-footer a {
  color: rgba(255, 255, 255, 0.8);
}

.site-footer a:hover {
  color: var(--color-lime-voltage);
}

/* Toast container */
.toast-container {
  position: fixed;
  bottom: var(--spacing-300);
  right: var(--spacing-300);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-100);
  pointer-events: none;
}

.toast {
  background: var(--color-forest-ink);
  color: var(--color-paper);
  padding: var(--spacing-100) var(--spacing-200);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  font-size: 14px;
  line-height: 20px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--spacing-100);
  transform: translateY(20px);
  opacity: 0;
  transition: all var(--duration-hover) var(--ease-base);
  pointer-events: auto;
  max-width: 380px;
}

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

/* ==========================================================================
   Prefers Reduced Motion (B7)
   ========================================================================== */

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