:root {
  --primary-color: #359ca1;
  --primary-light: #f4fcfa;
  --secondary-green: #72bc60;
  --secondary-purple: #c084fc;
  --secondary-yellow: #fbbf24;
  --text-dark: #1f2937;
  --text-medium: #4b5563;
  --text-light: #6b7280;
  --bg-light: #f9fafb;
  --bg-section: #f4fcfa;
  --white: #ffffff;
}

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

body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background-color: var(--white);
  color: var(--text-medium);
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

section {
  padding-top: 80px;
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--text-dark);
  font-weight: 700;
}

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

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 16px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--primary-light);
  box-shadow: 0px 8px 16px 0px rgba(53, 156, 161, 0.3);
}

.btn-primary:hover {
  opacity: 0.92;
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--primary-light);
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

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

.page-shell {
  min-height: 100vh;
  background: linear-gradient(180deg, #f0fbf7 0%, #ffffff 100%);
  position: relative;
}

.page-shell::before,
.page-shell::after {
  content: '';
  position: fixed;
  width: 520px;
  height: 520px;
  background-image: radial-gradient(circle at 20% 20%, rgba(53, 156, 161, 0.18), transparent 45%),
    radial-gradient(circle at 70% 60%, rgba(247, 185, 64, 0.12), transparent 50%);
  pointer-events: none;
  opacity: 0.5;
  filter: blur(8px);
  z-index: 0;
}

.page-shell::before {
  top: -200px;
  right: -180px;
}

.page-shell::after {
  bottom: -220px;
  left: -160px;
}

.site-header {
  background-color: var(--bg-section);
  padding: 20px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(53, 156, 161, 0.08);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
}

.logo-images {
  position: relative;
  width: 135px;
  height: 40px;
}

.logo-images img {
  position: absolute;
}

.logo-icon {
  top: 0;
  left: 0;
  width: 40px;
  height: 40px;
}

.logo-text {
  top: 50%;
  left: 50px;
  transform: translateY(-50%);
  height: 24px;
}

.main-nav ul {
  display: flex;
  gap: 28px;
}

.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-medium);
  transition: color 0.3s ease;
}

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

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

.login-link {
  font-weight: 500;
  color: var(--text-dark);
  transition: color 0.3s ease;
}

.login-link:hover {
  color: var(--primary-color);
}

.mobile-nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-nav-toggle span {
  width: 25px;
  height: 3px;
  border-radius: 2px;
  background-color: var(--text-dark);
}

.site-header.nav-open .main-nav {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.hero-section {
  background-color: var(--bg-section);
  padding-top: 80px;
}

.eyebrow {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--secondary-green);
}

.hero-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 60px;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 3.8rem);
  margin: 0;
  line-height: 1.1;
  color: var(--text-dark);
}

.hero-title .highlight {
  color: var(--primary-color);
}

.hero-subtitle {
  font-size: 1.1rem;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-cards {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.info-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  border-radius: 16px;
  border: 2px solid var(--secondary-green);
  background-color: var(--primary-light);
  box-shadow: 0 12px 35px rgba(22, 132, 125, 0.07);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.info-card:nth-child(2) {
  border-color: var(--primary-color);
}

.info-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(8, 73, 68, 0.16);
}

.info-card-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.info-card-icon-wrapper.green {
  background-color: #2acb9d;
}

.info-card-icon-wrapper.blue {
  background-color: var(--primary-color);
}

.info-card-text h4 {
  margin: 0;
  font-size: 1rem;
  color: #0f172a;
}

.info-card-text p {
  margin: 2px 0 0;
  font-size: 0.9rem;
  color: #475569;
}

.hero-image-wrapper {
  position: relative;
  min-height: 500px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-background-bubbles img {
  position: absolute;
  opacity: 0.4;
  animation: float 12s ease-in-out infinite;
}

.blob-1 {
  top: 0;
  right: 60px;
}
.blob-2 {
  top: 120px;
  left: 20px;
}
.blob-3 {
  bottom: 140px;
  left: 80px;
}
.blob-4 {
  bottom: 120px;
  right: 40px;
}
.blob-5 {
  bottom: 20px;
  left: 140px;
}

.phone-frame {
  width: min(320px, 90%);
  border-radius: 36px;
  border: 9px solid #000;
  padding: 16px;
  background: var(--white);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.15);
}

.phone-screen {
  background-color: var(--primary-light);
  border-radius: 24px;
  padding: 40px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.screen-welcome {
  margin: 0;
  font-weight: 600;
  color: var(--primary-color);
}

.chat-messages {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  margin: 20px 0;
}

.message {
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 0.85rem;
}

.message .time {
  display: block;
  font-size: 0.7rem;
  margin-top: 4px;
  text-align: right;
}

.incoming {
  background: #f9fafb;
  align-self: flex-start;
  border-bottom-left-radius: 6px;
}

.incoming .time {
  color: #94a3b8;
}

.outgoing {
  background: var(--primary-color);
  color: var(--primary-light);
  align-self: flex-end;
  border-bottom-right-radius: 6px;
}

.outgoing .time {
  color: #dcfce7;
}

.continue-text {
  margin: 0;
  font-size: 0.9rem;
  color: #6b7280;
}

.phone-input {
  width: 100%;
  padding: 12px 14px;
  text-align: center;
  border-radius: 12px;
  border: 1px solid var(--primary-color);
  font-weight: 600;
  color: var(--text-dark);
}

.full-width {
  width: 100%;
  justify-content: center;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 12px;
}

.section-subtitle {
  color: var(--text-medium);
  font-size: 1rem;
}

.features-section {
  background-color: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.feature-card {
  padding: 24px;
  border-radius: 16px;
  border: 2px solid var(--secondary-green);
  box-shadow: 0px 8px 18px rgba(0, 0, 0, 0.05);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.feature-card h3 {
  margin: 16px 0 8px;
}

.feature-card p {
  margin: 0;
  font-size: 0.95rem;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(114, 188, 96, 0.2);
  display: flex;
  justify-content: center;
  align-items: center;
}

.feature-card.voice-calls {
  border-color: var(--primary-color);
  background: linear-gradient(180deg, #ebf5ff 0%, #ffffff 100%);
}

.feature-card.video-calls {
  border-color: var(--secondary-purple);
  background: linear-gradient(180deg, #f5ebff 0%, #ffffff 100%);
}

.feature-card.groups {
  border-color: var(--secondary-yellow);
  background: linear-gradient(180deg, #fff5eb 0%, #ffffff 100%);
}

.security-section {
  background-color: var(--bg-section);
}

.security-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 60px;
  align-items: center;
}

.security-image-merged {
  background-color: #f0f7ff;
  border: 2px solid #22a8b8;
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0px 20px 30px rgba(13, 44, 69, 0.15);
}

.commitment-tag {
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 0.05em;
}

.security-content h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 12px 0;
}

.security-content p {
  font-size: 1rem;
  line-height: 1.7;
}

.learn-more-link {
  font-weight: 600;
  color: var(--primary-color);
}

.action-section {
  background-color: var(--bg-light);
}

.action-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
}

.action-card {
  text-align: center;
}

.action-image-container {
  position: relative;
  border-radius: 18px;
  border: 2px solid var(--secondary-green);
  padding: 24px;
  aspect-ratio: 355 / 284;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #edfdf6;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  transition: transform 0.4s ease;
}

.action-image-container:hover {
  transform: translateY(-10px) scale(1.02);
}

.action-image-container.blue-border {
  border-color: var(--primary-color);
  background: #f0f7ff;
}

.action-image-container.purple-border {
  border-color: var(--secondary-purple);
  background: #faf5ff;
}

.group-chat-screen {
  width: 80%;
  padding: 16px;
  background: var(--bg-section);
  border-radius: 12px;
}

.testimonials-section {
  background-color: var(--white);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.testimonial-card {
  background-color: var(--primary-light);
  border: 1px solid rgba(53, 156, 161, 0.3);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: 0 18px 35px rgba(6, 74, 70, 0.09);
}

.quote {
  margin: 0;
  font-size: 0.95rem;
}

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

.author img {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  object-fit: cover;
}

.author-info {
  display: flex;
  flex-direction: column;
}

.name {
  font-weight: 600;
  color: var(--text-dark);
}

.role {
  font-size: 0.85rem;
  color: var(--text-light);
}

.contact-section {
  background-color: var(--bg-light);
}

.contact-box {
  background: var(--bg-section);
  border-radius: 24px;
  padding: 48px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  box-shadow: 0 24px 45px rgba(6, 74, 70, 0.12);
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 24px;
}

.contact-links a {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text-medium);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-weight: 600;
  color: #374151;
}

.form-group input,
.form-group textarea {
  border: 1px solid rgba(53, 156, 161, 0.4);
  border-radius: 12px;
  padding: 14px;
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  background: var(--white);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(53, 156, 161, 0.15);
}

.site-footer-main {
  background-color: var(--primary-color);
  color: var(--primary-light);
  padding-top: 60px;
  padding-bottom: 30px;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-links {
  display: flex;
  gap: 60px;
  flex-wrap: wrap;
}

.footer-column h4 {
  margin-bottom: 12px;
}

.footer-column a {
  color: var(--primary-light);
  opacity: 0.9;
  transition: opacity 0.3s ease;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.35);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.social-links {
  display: flex;
  gap: 16px;
}

.social-links a {
  display: inline-flex;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  align-items: center;
  justify-content: center;
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@keyframes float {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-12px);
  }
  100% {
    transform: translateY(0px);
  }
}

@media (max-width: 1024px) {
  .main-nav {
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--bg-section);
    padding: 20px;
    border-bottom: 1px solid rgba(53, 156, 161, 0.1);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s ease, opacity 0.35s ease;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .mobile-nav-toggle {
    display: flex;
  }

  .login-link {
    display: none;
  }

  .hero-container {
    gap: 40px;
  }
}

@media (max-width: 768px) {
  section {
    padding-top: 60px;
    padding-bottom: 60px;
  }

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

  .header-container {
    flex-wrap: wrap;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .contact-box {
    padding: 32px;
  }
}