/* ========================================
   Pedal Landing Page Styles
   ======================================== */

:root {
  --green-50: #f0fdf4;
  --green-100: #dcfce7;
  --green-200: #bbf7d0;
  --green-300: #86efac;
  --green-400: #4ade80;
  --green-500: #2ecc71;
  --green-600: #22a85d;
  --green-700: #1a8a4a;
  --green-800: #166534;
  --green-900: #14532d;

  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --gray-950: #030712;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--gray-800);
  line-height: 1.6;
  background: #fff;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========================================
   Typography
   ======================================== */
h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--gray-950);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--gray-950);
}

h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
}

.text-gradient {
  background: linear-gradient(135deg, var(--green-500), var(--green-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section-header p {
  margin-top: 16px;
  font-size: 1.125rem;
  color: var(--gray-500);
}

.section-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--green-600);
  background: var(--green-50);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9375rem;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-full);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--green-500);
  color: #fff;
  padding: 14px 28px;
}

.btn-primary:hover {
  background: var(--green-600);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(46, 204, 113, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--gray-700);
  padding: 14px 28px;
  border: 1.5px solid var(--gray-200);
}

.btn-outline:hover {
  border-color: var(--gray-300);
  background: var(--gray-50);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1rem;
}

.btn-nav {
  background: var(--green-500);
  color: #fff;
  padding: 10px 20px;
  font-size: 0.875rem;
}

.btn-nav:hover {
  background: var(--green-600);
}

/* ========================================
   Navbar
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
}

.navbar.scrolled {
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.08);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--gray-950);
}

.logo-icon {
  width: 32px;
  height: 32px;
  color: var(--green-500);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a:not(.btn) {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: color 0.2s;
}

.nav-links a:not(.btn):hover {
  color: var(--gray-900);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--gray-700);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ========================================
   Hero
   ======================================== */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(180deg, var(--green-50) 0%, #fff 100%);
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--green-700);
  background: var(--green-100);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 24px;
}

.hero-subtitle {
  margin-top: 24px;
  font-size: 1.1875rem;
  color: var(--gray-500);
  max-width: 520px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 12px;
  margin-top: 36px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--gray-200);
}

.hero-stat-number {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--gray-950);
}

.hero-stat-label {
  display: block;
  font-size: 0.8125rem;
  color: var(--gray-400);
  margin-top: 2px;
}

.hero-stat-divider {
  width: 1px;
  height: 48px;
  background: var(--gray-200);
}

/* Phone Mockup */
.hero-visual {
  display: flex;
  justify-content: center;
}

.phone-mockup {
  perspective: 1000px;
}

.phone-frame {
  width: 300px;
  height: 600px;
  background: var(--gray-950);
  border-radius: 40px;
  padding: 12px;
  box-shadow:
    0 25px 50px rgba(0, 0, 0, 0.15),
    0 0 0 1px rgba(255, 255, 255, 0.1) inset;
  transform: rotateY(-5deg) rotateX(2deg);
  transition: transform 0.6s ease;
}

.phone-frame:hover {
  transform: rotateY(0deg) rotateX(0deg);
}

.phone-notch {
  width: 120px;
  height: 28px;
  background: var(--gray-950);
  border-radius: 0 0 16px 16px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.phone-screen {
  background: #fff;
  border-radius: 28px;
  height: 100%;
  padding: 48px 20px 20px;
  overflow: hidden;
}

.screen-header {
  margin-bottom: 20px;
}

.screen-greeting {
  display: block;
  font-size: 0.75rem;
  color: var(--gray-400);
  margin-bottom: 2px;
}

.screen-title {
  display: block;
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--gray-950);
}

.screen-stats-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 10px;
}

.screen-stat-card {
  background: var(--gray-50);
  border-radius: 14px;
  padding: 14px;
}

.screen-stat-label {
  display: block;
  font-size: 0.625rem;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.screen-stat-value {
  display: block;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--gray-900);
}

.screen-chart {
  background: var(--gray-50);
  border-radius: 14px;
  padding: 14px;
  margin-top: 10px;
}

.screen-chart-title {
  font-size: 0.625rem;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 12px;
}

.screen-bars {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 80px;
}

.screen-bar {
  flex: 1;
  background: var(--green-200);
  border-radius: 6px 6px 0 0;
  min-height: 12px;
  transition: background 0.3s;
}

.screen-bar.active {
  background: var(--green-500);
}

/* ========================================
   Social Proof
   ======================================== */
.social-proof {
  padding: 48px 0;
  background: var(--gray-950);
}

.proof-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  text-align: center;
}

.proof-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
}

.proof-label {
  display: block;
  font-size: 0.875rem;
  color: var(--gray-400);
  margin-top: 4px;
}

/* ========================================
   Features
   ======================================== */
.features {
  padding: 120px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

.feature-card:hover {
  background: #fff;
  border-color: var(--gray-200);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--green-100);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--green-600);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.feature-card h3 {
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--gray-500);
  line-height: 1.65;
}

/* ========================================
   How It Works
   ======================================== */
.how-it-works {
  padding: 120px 0;
  background: var(--gray-50);
}

.steps-grid {
  display: flex;
  align-items: flex-start;
  gap: 0;
}

.step-card {
  flex: 1;
  text-align: center;
  padding: 0 32px;
}

.step-number {
  width: 56px;
  height: 56px;
  background: var(--green-500);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 800;
  margin: 0 auto 24px;
}

.step-content h3 {
  margin-bottom: 8px;
}

.step-content p {
  font-size: 0.9375rem;
  color: var(--gray-500);
  line-height: 1.65;
}

.step-connector {
  width: 80px;
  height: 2px;
  background: var(--gray-200);
  margin-top: 28px;
  flex-shrink: 0;
}

/* ========================================
   Impact
   ======================================== */
.impact {
  padding: 120px 0;
}

.impact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.impact-content h2 {
  margin-top: 8px;
}

.impact-content > p {
  margin-top: 16px;
  font-size: 1.0625rem;
  color: var(--gray-500);
  line-height: 1.7;
}

.impact-stats {
  margin-top: 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.impact-stat {
  display: flex;
  align-items: center;
  gap: 16px;
}

.impact-stat-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.impact-stat-icon.tree { background: var(--green-100); }
.impact-stat-icon.phone { background: #e0f2fe; }
.impact-stat-icon.kettle { background: #fef3c7; }

.impact-stat strong {
  display: block;
  color: var(--gray-900);
}

.impact-stat span {
  font-size: 0.8125rem;
  color: var(--gray-400);
}

.savings-card {
  background: var(--gray-950);
  border-radius: var(--radius-xl);
  padding: 40px;
  color: #fff;
  text-align: center;
}

.savings-card-header {
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gray-400);
  margin-bottom: 12px;
}

.savings-amount {
  font-size: 3.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--green-400), var(--green-300));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.savings-label {
  font-size: 0.9375rem;
  color: var(--gray-400);
  margin-bottom: 32px;
}

.savings-breakdown {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.savings-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.9375rem;
}

.savings-row span:first-child {
  color: var(--gray-400);
}

.savings-row span:last-child {
  font-weight: 600;
}

/* ========================================
   Testimonials
   ======================================== */
.testimonials {
  padding: 120px 0;
  background: var(--gray-50);
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--gray-100);
}

.testimonial-stars {
  color: #f59e0b;
  font-size: 1.125rem;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.testimonial-card p {
  font-size: 0.9375rem;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 24px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  background: var(--green-100);
  color: var(--green-700);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
}

.testimonial-author strong {
  display: block;
  font-size: 0.875rem;
  color: var(--gray-900);
}

.testimonial-author span {
  font-size: 0.75rem;
  color: var(--gray-400);
}

/* ========================================
   Signup
   ======================================== */
.signup {
  padding: 120px 0;
}

.signup-card {
  background: linear-gradient(135deg, var(--green-500), var(--green-600));
  border-radius: var(--radius-xl);
  padding: 80px;
  text-align: center;
}

.signup-content h2 {
  color: #fff;
  margin-bottom: 12px;
}

.signup-content > p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.0625rem;
  max-width: 500px;
  margin: 0 auto 32px;
}

.signup-form .form-group {
  display: flex;
  gap: 8px;
  max-width: 480px;
  margin: 0 auto;
}

.signup-form input {
  flex: 1;
  padding: 16px 20px;
  border: none;
  border-radius: var(--radius-full);
  font-family: inherit;
  font-size: 0.9375rem;
  background: rgba(255, 255, 255, 0.95);
  outline: none;
}

.signup-form input:focus {
  background: #fff;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

.signup-form .btn {
  padding: 16px 28px;
  background: var(--gray-950);
  color: #fff;
  flex-shrink: 0;
}

.signup-form .btn:hover {
  background: var(--gray-800);
}

.form-note {
  margin-top: 16px;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.7);
}

.form-note a {
  text-decoration: underline;
  color: rgba(255, 255, 255, 0.9);
}

.signup-success {
  max-width: 480px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: center;
  color: #fff;
  font-weight: 600;
}

.signup-success svg {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

/* ========================================
   FAQ
   ======================================== */
.faq {
  padding: 120px 0;
  background: var(--gray-50);
}

.faq-grid {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.faq-item {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-100);
  overflow: hidden;
}

.faq-item summary {
  padding: 20px 24px;
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  color: var(--gray-900);
  transition: background 0.2s;
}

.faq-item summary:hover {
  background: var(--gray-50);
}

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

.faq-item summary::after {
  content: '+';
  font-size: 1.25rem;
  font-weight: 300;
  color: var(--gray-400);
  transition: transform 0.2s;
}

.faq-item[open] summary::after {
  content: '\2212';
}

.faq-item p {
  padding: 0 24px 20px;
  font-size: 0.9375rem;
  color: var(--gray-500);
  line-height: 1.7;
}

.faq-item p a {
  color: var(--green-600);
  text-decoration: underline;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  padding: 64px 0 32px;
  background: #fff;
  border-top: 1px solid var(--gray-100);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 64px;
}

.footer-brand p {
  margin-top: 16px;
  font-size: 0.875rem;
  color: var(--gray-400);
  max-width: 300px;
  line-height: 1.65;
}

.footer-links h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-900);
  margin-bottom: 16px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--gray-500);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--gray-900);
}

.footer-bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--gray-100);
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: var(--gray-400);
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-cta {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

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

  .impact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .testimonial-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--gray-100);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  }

  .nav-links.open {
    display: flex;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero {
    padding: 120px 0 60px;
  }

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

  .steps-grid {
    flex-direction: column;
    gap: 32px;
  }

  .step-connector {
    width: 2px;
    height: 32px;
    margin: 0 auto;
  }

  .proof-items {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .signup-card {
    padding: 48px 24px;
  }

  .signup-form .form-group {
    flex-direction: column;
  }

  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }

  .hero-stat-divider {
    width: 48px;
    height: 1px;
  }

  .phone-frame {
    width: 260px;
    height: 520px;
    transform: none;
  }

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

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}