/* ============================================
   BITSA — Full Stylesheet
   Mobile-first responsive
   Palette: Forest + Gold
   Fonts: Space Grotesk + Newsreader
   ============================================ */

/* --- RESET & BASE --- */

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

:root {
  --dark: #2d3436;
  --primary: #00b894;
  --primary-deep: #00a383;
  --accent: #fdcb6e;
  --accent-deep: #f0b429;
  --light: #fefefe;
  --warm: #f8f5f0;
  --warm-alt: #f2ede5;
  --text: #2d3436;
  --text-light: #636e72;
  --text-faint: #b2bec3;
  --border: rgba(45, 52, 54, 0.08);
  --shadow-sm: 0 1px 3px rgba(45, 52, 54, 0.06);
  --shadow-md: 0 4px 16px rgba(45, 52, 54, 0.08);
  --shadow-lg: 0 8px 32px rgba(45, 52, 54, 0.1);
  --shadow-xl: 0 16px 48px rgba(45, 52, 54, 0.12);
  --font-heading: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --font-body: 'Newsreader', Georgia, 'Times New Roman', serif;
  --nav-height: 72px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--nav-height) + 24px);
}

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--light);
  line-height: 1.7;
  overflow-x: hidden;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  transition: color 0.2s ease;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

/* --- CONTAINER --- */

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- HEADER --- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(254, 254, 254, 0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--dark);
  text-decoration: none;
  letter-spacing: -0.03em;
}

.logo span {
  color: var(--primary);
}

/* Nav toggle (CSS-only mobile nav) */
.nav-toggle {
  display: none;
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.nav-toggle-label {
  display: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 110;
  border-radius: var(--radius-sm);
  transition: background 0.2s;
}

.nav-toggle-label:hover {
  background: rgba(45, 52, 54, 0.04);
}

.hamburger-svg {
  width: 24px;
  height: 24px;
  stroke: var(--dark);
  stroke-width: 2;
  stroke-linecap: round;
}

.nav-list {
  list-style: none;
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-list a {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-light);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color 0.2s ease;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--primary);
}

.nav-cta {
  background: var(--primary);
  color: #fff !important;
  padding: 10px 24px;
  border-radius: var(--radius-md);
  font-weight: 600 !important;
  transition: background 0.2s ease, transform 0.15s ease;
}

.nav-cta:hover {
  background: var(--primary-deep);
  transform: translateY(-1px);
}

/* Mobile overlay for closing nav */
.nav-toggle:checked ~ .nav-overlay {
  display: block;
}

/* --- HERO --- */

.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-height) + 72px) 24px 96px;
  background: var(--warm);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 184, 148, 0.07) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -15%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(253, 203, 110, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.hero-tag {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary);
  margin-bottom: 20px;
}

.hero-headline {
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  color: var(--dark);
}

.text-accent {
  color: var(--primary);
  position: relative;
}

.text-accent::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  right: 0;
  height: 6px;
  background: var(--accent);
  opacity: 0.4;
  border-radius: 3px;
  z-index: -1;
}

.hero-sub {
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--text-light);
  max-width: 580px;
  margin: 0 auto 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.hero-note {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  color: var(--text-faint);
  letter-spacing: 0.01em;
}

/* --- BUTTONS --- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  border-radius: var(--radius-md);
  padding: 14px 28px;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-deep);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 184, 148, 0.25);
}

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

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

.btn-large {
  padding: 16px 36px;
  font-size: 1rem;
}

.btn-icon {
  flex-shrink: 0;
}

/* --- SOCIAL PROOF STRIP --- */

.proof-strip {
  background: var(--dark);
  padding: 28px 24px;
  text-align: center;
}

.proof-text {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.02em;
  font-weight: 400;
  line-height: 1.6;
}

.proof-text strong {
  color: rgba(255, 255, 255, 0.95);
  font-weight: 600;
}

/* --- SECTION INTRO (shared) --- */

.section-intro {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 56px;
}

.section-tag {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--dark);
}

.section-desc {
  font-size: 1.0625rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* --- WHAT'S INCLUDED --- */

.included {
  padding: 96px 0 104px;
  background: var(--light);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.feature-row {
  display: grid;
  grid-template-columns: 72px 1fr 160px;
  gap: 24px;
  align-items: center;
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
}

.feature-row:first-child {
  padding-top: 0;
}

.feature-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.feature-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.5;
  line-height: 1;
}

.feature-body {
  max-width: 520px;
}

.feature-name {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--dark);
}

.feature-desc {
  font-size: 1rem;
  color: var(--text-light);
  line-height: 1.7;
}

.feature-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-svg {
  width: 100px;
  height: 100px;
}

/* --- HOW IT WORKS --- */

.how-it-works {
  padding: 96px 0 104px;
  background: var(--warm);
}

.steps {
  max-width: 560px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.step {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  width: 100%;
}

.step-marker {
  flex-shrink: 0;
  width: 72px;
  height: 72px;
  background: var(--light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
}

.step-icon {
  width: 40px;
  height: 40px;
}

.step-content {
  padding-top: 4px;
  flex: 1;
}

.step-num {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary);
  display: block;
  margin-bottom: 6px;
}

.step-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--dark);
}

.step-desc {
  font-size: 1rem;
  color: var(--text-light);
  line-height: 1.7;
}

.step-connector {
  display: flex;
  justify-content: flex-start;
  padding-left: 35px;
  height: 48px;
}

.connector-line {
  width: 2px;
  height: 48px;
}

/* --- PRICING --- */

.pricing {
  padding: 96px 0 104px;
  background: var(--light);
}

.pricing-card {
  max-width: 800px;
  margin: 0 auto;
  background: var(--light);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.pricing-header {
  text-align: center;
  padding: 48px 32px 40px;
  background: linear-gradient(135deg, var(--dark) 0%, #3d4a4d 100%);
  color: #fff;
}

.pricing-amount {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
  margin-bottom: 10px;
}

.pricing-currency {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 600;
  opacity: 0.8;
}

.pricing-number {
  font-family: var(--font-heading);
  font-size: 4.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}

.pricing-period {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 400;
  opacity: 0.6;
}

.pricing-tagline {
  font-size: 1.0625rem;
  opacity: 0.75;
  font-style: italic;
}

.pricing-body {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0;
  padding: 40px 40px;
}

.pricing-divider {
  width: 1px;
  background: var(--border);
  margin: 0 24px;
}

.pricing-col-title {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--dark);
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.pricing-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.pricing-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--text);
}

.check-icon,
.plus-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.pricing-footer {
  text-align: center;
  padding: 32px 40px 40px;
  border-top: 1px solid var(--border);
  background: rgba(248, 245, 240, 0.4);
}

.pricing-note {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  color: var(--text-faint);
  margin-top: 14px;
  letter-spacing: 0.01em;
}

/* --- FAQ --- */

.faq {
  padding: 96px 0 104px;
  background: var(--warm);
}

.faq-list {
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.faq-item {
  border-bottom: 1px solid rgba(45, 52, 54, 0.1);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 0;
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  list-style: none;
  transition: color 0.2s ease;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::marker {
  content: '';
}

.faq-question:hover {
  color: var(--primary);
}

.faq-chevron {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  transition: transform 0.3s ease;
  color: var(--text-faint);
}

.faq-item[open] .faq-chevron {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  padding: 0 0 24px;
}

.faq-answer p {
  font-size: 1rem;
  color: var(--text-light);
  line-height: 1.8;
}

/* --- FINAL CTA --- */

.final-cta {
  padding: 96px 0 104px;
  background: var(--dark);
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -100px;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 184, 148, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.final-cta::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -80px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(253, 203, 110, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.cta-inner {
  text-align: center;
  position: relative;
  z-index: 2;
  max-width: 600px;
  margin: 0 auto;
}

.cta-headline {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.cta-sub {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.8;
  margin-bottom: 36px;
}

.cta-note {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.35);
  margin-top: 16px;
  letter-spacing: 0.01em;
}

/* --- FOOTER --- */

.site-footer {
  background: #1a1c1d;
  padding: 56px 0 0;
  color: rgba(255, 255, 255, 0.5);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand .logo {
  color: #fff;
  display: inline-block;
  margin-bottom: 12px;
}

.footer-tagline {
  font-size: 0.9375rem;
  line-height: 1.6;
  max-width: 280px;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 24px 0;
  text-align: center;
}

.footer-bottom p {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.3);
  letter-spacing: 0.01em;
}

/* --- FLOATING WHATSAPP --- */

.floating-wa {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35);
  z-index: 90;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
}

.floating-wa:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.45);
}

.floating-wa.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.floating-wa.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* --- FOCUS STYLES --- */

*:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 3px;
}

.btn:focus-visible {
  outline-offset: 4px;
}

/* ============================================
   RESPONSIVE — TABLET
   ============================================ */

@media (max-width: 900px) {
  .feature-row {
    grid-template-columns: 56px 1fr 120px;
    gap: 16px;
  }

  .feature-svg {
    width: 80px;
    height: 80px;
  }

  .pricing-body {
    padding: 32px 24px;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

/* ============================================
   RESPONSIVE — MOBILE
   ============================================ */

@media (max-width: 768px) {

  body {
    font-size: 16px;
  }

  /* Mobile nav */
  .nav-toggle-label {
    display: flex;
  }

  .nav-list {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    height: 100svh;
    flex-direction: column;
    background: var(--light);
    padding: 100px 32px 40px;
    gap: 24px;
    transition: right 0.3s ease;
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.08);
    z-index: 105;
  }

  .nav-toggle:checked ~ nav .nav-list {
    right: 0;
  }

  .nav-list a {
    font-size: 1rem;
    color: var(--text);
  }

  .nav-cta {
    text-align: center;
    justify-content: center;
    width: 100%;
    display: block;
    padding: 14px 24px;
  }

  /* Hero */
  .hero {
    min-height: auto;
    padding: calc(var(--nav-height) + 48px) 20px 64px;
  }

  .hero-sub {
    font-size: 1.05rem;
    margin-bottom: 28px;
  }

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

  .btn {
    width: 100%;
    max-width: 320px;
    justify-content: center;
  }

  /* Proof strip */
  .proof-strip {
    padding: 24px 20px;
  }

  .proof-text {
    font-size: 0.875rem;
  }

  /* Sections */
  .included {
    padding: 72px 0 80px;
  }

  .section-intro {
    margin-bottom: 40px;
  }

  /* Features — single column on mobile */
  .feature-row {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 32px 0;
  }

  .feature-row--reverse {
    direction: ltr;
  }

  .feature-number {
    font-size: 2rem;
  }

  .feature-visual {
    display: none;
  }

  /* How it works */
  .how-it-works {
    padding: 72px 0 80px;
  }

  .step {
    gap: 20px;
  }

  .step-marker {
    width: 56px;
    height: 56px;
  }

  .step-icon {
    width: 32px;
    height: 32px;
  }

  .step-connector {
    padding-left: 27px;
    height: 36px;
  }

  /* Pricing */
  .pricing {
    padding: 72px 0 80px;
  }

  .pricing-header {
    padding: 36px 24px 32px;
  }

  .pricing-number {
    font-size: 3.5rem;
  }

  .pricing-body {
    grid-template-columns: 1fr;
    padding: 28px 24px;
    gap: 28px;
  }

  .pricing-divider {
    width: 100%;
    height: 1px;
    margin: 0;
  }

  .pricing-footer {
    padding: 24px 24px 32px;
  }

  .pricing-footer .btn {
    max-width: 100%;
  }

  /* FAQ */
  .faq {
    padding: 72px 0 80px;
  }

  .faq-question {
    font-size: 1rem;
    padding: 20px 0;
  }

  /* Final CTA */
  .final-cta {
    padding: 72px 0 80px;
  }

  .cta-sub {
    margin-bottom: 28px;
  }

  /* Footer */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: auto;
  }

  /* Floating WA */
  .floating-wa {
    bottom: 20px;
    right: 20px;
    width: 52px;
    height: 52px;
  }
}

/* ============================================
   RESPONSIVE — SMALL MOBILE
   ============================================ */

@media (max-width: 400px) {
  .container {
    padding: 0 16px;
  }

  .hero {
    padding: calc(var(--nav-height) + 36px) 16px 48px;
  }

  .pricing-body {
    padding: 24px 16px;
  }

  .pricing-footer {
    padding: 20px 16px 28px;
  }
}

/* ============================================
   ANIMATIONS (reduced motion respected)
   ============================================ */

@media (prefers-reduced-motion: no-preference) {
  .hero-content {
    animation: fadeUp 0.6s ease-out both;
  }

  @keyframes fadeUp {
    from {
      opacity: 0;
      transform: translateY(24px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  .site-header,
  .floating-wa,
  .nav-toggle-label {
    display: none !important;
  }

  .hero {
    min-height: auto;
    padding: 40px 0;
  }

  body {
    font-size: 12pt;
    color: #000;
  }

  a {
    color: #000;
    text-decoration: underline;
  }
}