/* ===========================
   CSS Custom Properties
   =========================== */
:root {
  /* Brand Colors */
  --color-primary: #10B981;
  --color-primary-hover: #0ea372;
  --color-primary-container: #d1fae5;
  --color-dark: #0F172A;
  --color-bg: #FDFFFF;
  --color-white: #ffffff;
  --color-warning: #FF9914;
  --color-error: #F21B3F;

  /* Typography */
  --font-family: Roboto, "Helvetica Neue", sans-serif;
  --font-weight-heading: 600;
  --font-size-body: 16px;

  /* Breakpoints (reference — used in media queries)
     --bp-sm: 576px;
     --bp-md: 768px;
     --bp-lg: 992px;
     --bp-xl: 1200px;
     --bp-xxl: 1400px;
  */
}

/* ===========================
   Reset & Base Styles
   =========================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  background-color: var(--color-bg);
  color: var(--color-dark);
  font-family: var(--font-family);
  font-size: var(--font-size-body);
  margin: 0;
  line-height: 1.6;
}

h1, h2, h3 {
  font-weight: var(--font-weight-heading);
  color: var(--color-dark);
}

/* ===========================
   Layout Utilities
   =========================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

/* ===========================
   Button Styles
   =========================== */
.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 14px 32px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  display: inline-block;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s;
}

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

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  padding: 14px 32px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  display: inline-block;
  border: 2px solid var(--color-primary);
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s;
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* ===========================
   Navigation Bar
   =========================== */
#navbar {
  position: sticky;
  top: 0;
  background: var(--color-bg);
  z-index: 1000;
  border-bottom: 1px solid rgba(15, 23, 42, 0.1);
  padding: 0;
}

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

.nav-logo img {
  height: 40px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
  margin: 0;
  padding: 0;
  align-items: center;
}

.nav-links a {
  color: var(--color-dark);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}

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

.nav-login {
  padding: 10px 24px;
  font-size: 0.9rem;
}

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  min-width: 44px;
  min-height: 44px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  margin: 5px 0;
  transition: all 0.3s;
}

@media (max-width: 767px) {
  .hamburger {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid rgba(15, 23, 42, 0.1);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  }

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

  .nav-links a {
    padding: 12px 0;
    font-size: 1rem;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .nav-login {
    width: 100%;
    text-align: center;
  }
}

/* ===========================
   Hero Section
   =========================== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-primary-container) 100%);
}

.hero-content {
  max-width: 700px;
}

#hero h1 {
  font-size: 3.2rem;
  line-height: 1.2;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: rgba(15, 23, 42, 0.7);
  margin-bottom: 40px;
  max-width: 560px;
}

.hero-cta {
  font-size: 1.1rem;
  padding: 16px 40px;
}

@media (max-width: 767px) {
  #hero {
    min-height: auto;
    padding: 120px 0 80px;
  }

  #hero h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.05rem;
  }
}

/* ===========================
   Social Proof Section
   =========================== */
#social-proof {
  background: var(--color-dark);
  color: var(--color-white);
  padding: 60px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  display: block;
  color: var(--color-primary);
}

.stat-label {
  font-size: 0.95rem;
  opacity: 0.85;
  display: block;
  margin-top: 8px;
}

@media (max-width: 991px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

/* ===========================
   Feature Cards Section
   =========================== */
.section-title {
  text-align: center;
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.section-subtitle {
  text-align: center;
  color: rgba(15, 23, 42, 0.6);
  font-size: 1.1rem;
  margin-bottom: 56px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: white;
  border-radius: 12px;
  padding: 32px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  margin-top: 0;
}

.feature-card p {
  color: rgba(15, 23, 42, 0.65);
  font-size: 0.95rem;
  margin: 0;
  line-height: 1.6;
}

@media (max-width: 991px) and (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

/* ===========================
   Pricing Section
   =========================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 800px;
  margin: 0 auto;
}

.pricing-card {
  background: white;
  border-radius: 16px;
  padding: 40px 32px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  text-align: center;
  position: relative;
  display: flex;
  flex-direction: column;
}

.pricing-card.recommended {
  border: 2px solid var(--color-primary);
  box-shadow: 0 8px 32px rgba(16, 185, 129, 0.15);
}

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: white;
  padding: 6px 20px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
}

.pricing-name {
  font-size: 1.5rem;
  margin-bottom: 8px;
  margin-top: 0;
}

.pricing-price {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 32px;
}

.pricing-price span {
  font-size: 1rem;
  font-weight: 400;
  color: rgba(15, 23, 42, 0.5);
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  text-align: left;
}

.pricing-features li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  font-size: 0.95rem;
  color: rgba(15, 23, 42, 0.7);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-cta {
  width: 100%;
  text-align: center;
  margin-top: auto;
}

@media (max-width: 767px) {
  .pricing-grid {
    grid-template-columns: 1fr;
  }
}

/* ===========================
   FAQ Section
   =========================== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid rgba(15, 23, 42, 0.1);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 0;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-dark);
  cursor: pointer;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 44px;
  font-family: var(--font-family);
  line-height: 1.4;
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--color-primary);
  transition: transform 0.3s;
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-question[aria-expanded="true"]::after {
  content: '−';
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer.active {
  max-height: 500px;
}

.faq-answer p {
  padding: 0 0 20px;
  color: rgba(15, 23, 42, 0.7);
  line-height: 1.7;
  margin: 0;
}

/* ===========================
   Contact Section
   =========================== */
.contact-content {
  text-align: center;
}

.contact-cta {
  font-size: 1.1rem;
}

/* ===========================
   Footer
   =========================== */
#footer {
  background: var(--color-dark);
  color: var(--color-white);
  padding: 60px 0 40px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.footer-logo {
  height: 36px;
}

.footer-tagline {
  margin: 8px 0 0;
  opacity: 0.7;
  font-size: 0.95rem;
}

.footer-brand {
  text-align: center;
}

.footer-nav {
  display: flex;
  gap: 32px;
}

.footer-nav a {
  color: var(--color-white);
  text-decoration: none;
  opacity: 0.7;
  transition: opacity 0.2s;
  font-size: 0.95rem;
}

.footer-nav a:hover {
  opacity: 1;
}

.footer-copyright {
  opacity: 0.5;
  font-size: 0.85rem;
  margin: 16px 0 0;
}

@media (max-width: 767px) {
  .footer-nav {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

/* ===========================
   Responsive & Accessibility
   =========================== */
body {
  overflow-x: hidden;
}

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