/* CSS Variables for consistent theming */
:root {
  /* Main theme color requested by user */
  --main-color: #2596be; /* <-- your main color */
  --main-color-dark: #1f7fa8; /* darker variant for contrast */
  --main-color-hover: #1b6f92; /* hover */
  --bg-gray: #f0f0f0;
  --bg-gray-dark: #e5e5e5;
  --text-dark: #4a4a4a;
  --text-light: #757575;
  --white: #ffffff;

  /* Spacing utilities */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 4rem;

  /* Typography */
  --font-family: "Roboto", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
}

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  line-height: 1.6;
  color: var(--text-dark);
  background: var(--white);
}

/* Utility classes for spacing */
.mx-auto {
  margin-left: auto;
  margin-right: auto;
}
.py-sm {
  padding-top: var(--space-sm);
  padding-bottom: var(--space-sm);
}
.py-md {
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
}
.py-lg {
  padding-top: var(--space-lg);
  padding-bottom: var(--space-lg);
}
.py-xl {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}
.px-sm {
  padding-left: var(--space-sm);
  padding-right: var(--space-sm);
}
.px-md {
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-sm);
}

/* Header styles */
header {
  background: var(--white);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
}

/* Logo area */
.logo {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--main-color);
  text-decoration: none;
}

.nav-menu {
  display: none;
  list-style: none;
  gap: var(--space-lg);
}

.nav-menu a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a:focus {
  color: var(--main-color);
  outline: 2px solid var(--main-color);
  outline-offset: 2px;
}

/* nav-actions */
.nav-actions {
  display: none;
  gap: var(--space-sm);
}

.btn {
  padding: var(--space-xs) var(--space-md);
  border: none;
  border-radius: 8px;
  font-weight: 500;
  text-decoration: none;
  display: inline-block;
  transition: all 0.25s ease;
  cursor: pointer;
  font-size: var(--font-size-base);
}

.btn:focus {
  outline: 2px solid var(--main-color);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--main-color);
  color: var(--white);
  box-shadow: 0 8px 18px rgba(37, 150, 190, 0.12);
  transform-origin: center;
  animation: none;
}

/* CTA pulse on hover and slight idle pulse for attention */
.btn-primary:hover {
  background: var(--main-color-hover);
  transform: translateY(-2px) scale(1.01);
}

.btn-primary.pulse {
  animation: pulse 2.5s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 6px 14px rgba(37, 150, 190, 0.12);
    transform: scale(1);
  }
  50% {
    box-shadow: 0 12px 30px rgba(37, 150, 190, 0.14);
    transform: scale(1.02);
  }
  100% {
    box-shadow: 0 6px 14px rgba(37, 150, 190, 0.12);
    transform: scale(1);
  }
}

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

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

.hamburger {
  display: flex;
  flex-direction: column;
  cursor: pointer;
  padding: var(--space-xs);
  gap: 4px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--text-dark);
  transition: 0.3s;
  border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: var(--white);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.08);
  padding: var(--space-md);
}

.mobile-menu.active {
  display: block;
  animation: slideDown 0.25s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-menu ul {
  list-style: none;
  margin-bottom: var(--space-md);
}

.mobile-menu li {
  padding: var(--space-xs) 0;
}

.mobile-menu a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  display: block;
  padding: var(--space-xs) 0;
}

/* Hero section */
.hero {
  /* animated subtle gradient background to make the landing feel alive */
  background: linear-gradient(135deg, #f7fbfd 0%, var(--white) 100%);
  position: relative;
  padding: var(--space-xl) 0;
  overflow: hidden;
}

/* floating decorative shapes (simple & accessible) */
.hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -60px;
  width: 420px;
  height: 420px;
  background: radial-gradient(
      circle at 30% 30%,
      rgba(37, 150, 190, 0.12),
      transparent 40%
    ),
    radial-gradient(
      circle at 70% 70%,
      rgba(37, 150, 190, 0.08),
      transparent 40%
    );
  filter: blur(30px);
  transform: rotate(15deg);
  animation: floatSlow 6s ease-in-out infinite;
  pointer-events: none;
}

@keyframes floatSlow {
  0% {
    transform: translateY(0) rotate(15deg);
  }
  50% {
    transform: translateY(8px) rotate(15deg);
  }
  100% {
    transform: translateY(0) rotate(15deg);
  }
}

.hero-content {
  display: grid;
  gap: var(--space-xl);
  align-items: center;
}

.hero-text {
  text-align: center;
  opacity: 0;
  animation: fadeInUp 0.9s ease forwards;
}

.hero-text h1 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--text-dark);
}

.hero-text p {
  font-size: var(--font-size-lg);
  color: var(--text-light);
  margin-bottom: var(--space-lg);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* phone mockup animation (gentle floating + subtle rotate) */
.phone-mockup {
  display: flex;
  justify-content: center;
  opacity: 0;
  animation: fadeInUp 0.9s ease 0.25s forwards;
}

.phone {
  width: 250px;
  height: 500px;
  position: relative;
  transform-origin: center;
  animation: floatPhone 4s ease-in-out infinite;
}

.phone::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
}

@keyframes floatPhone {
  0% {
    transform: translateY(0) rotate(-1deg);
  }
  50% {
    transform: translateY(8px) rotate(1deg);
  }
  100% {
    transform: translateY(0) rotate(-1deg);
  }
}

.phone-screen {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: var(--font-size-lg);
  font-weight: 500;
  text-align: center;
  overflow: hidden;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Features section */
.features {
  padding: var(--space-xxl) 0;
  background: var(--white);
}

.features h2 {
  text-align: center;
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-xl);
  color: var(--text-dark);
}

.features-grid {
  display: grid;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.feature-card {
  text-align: center;
  padding: var(--space-lg);
  border-radius: 12px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  background: linear-gradient(180deg, rgba(37, 150, 190, 0.03), transparent);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.06);
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: var(--main-color);
  border-radius: 50%;
  margin: 0 auto var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  color: var(--white);
}

.feature-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
  color: var(--text-dark);
}

.feature-card p {
  color: var(--text-light);
  line-height: 1.6;
}

/* Download section */
.download {
  background: var(--main-color-dark);
  color: var(--white);
  padding: var(--space-xxl) 0;
  text-align: center;
}

.download h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-md);
}

.download p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-xl);
  opacity: 0.95;
}

.download-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.store-btn {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--text-dark);
  color: var(--white);
  padding: var(--space-md) var(--space-lg);
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.3s ease;
}

.store-btn:hover {
  background: #333;
  transform: translateY(-2px);
}

.store-btn:focus {
  outline: 2px solid var(--white);
  outline-offset: 2px;
}

.store-icon {
  font-size: var(--font-size-2xl);
}

/* Testimonials */
.testimonials {
  padding: var(--space-xxl) 0;
  background: var(--bg-gray);
}

.testimonials h2 {
  text-align: center;
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-xl);
  color: var(--text-dark);
}

.testimonial-grid {
  display: grid;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.testimonial {
  background: var(--white);
  padding: var(--space-lg);
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.testimonial p {
  font-style: italic;
  margin-bottom: var(--space-md);
  color: var(--text-light);
}

.testimonial-author {
  font-weight: 500;
  color: var(--text-dark);
}

/* Footer */
footer {
  background: var(--main-color-dark);
  color: var(--white);
  padding: var(--space-xl) 0 var(--space-lg);
}

.footer-content {
  display: grid;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer-section h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-md);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--space-xs);
}

.footer-section ul li a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section ul li a:hover,
.footer-section ul li a:focus {
  color: var(--white);
  outline: 1px solid var(--white);
  outline-offset: 2px;
}

.socials {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.socials a {
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  transition: background 0.2s ease, transform 0.15s ease;
}

.socials a:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.12);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.85);
}

/* Responsive Design */

/* Tablet breakpoint - 640px */
@media (min-width: 640px) {
  .nav-menu {
    display: flex;
  }

  .nav-actions {
    display: flex;
  }

  .hamburger {
    display: none;
  }

  .hero-text h1 {
    font-size: var(--font-size-4xl);
  }

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

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

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

/* Desktop breakpoint - 1024px */
@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-md);
  }

  .hero-content {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xxl);
  }

  .hero-text {
    text-align: left;
  }

  .hero-text h1 {
    font-size: var(--font-size-4xl);
  }

  .hero-actions {
    justify-content: flex-start;
  }

  .phone {
    width: 300px;
    height: 600px;
  }

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

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

  .footer-content {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ... existing CSS ... */

/* Footer */
footer {
  background: var(--main-color-dark);
  color: var(--white);
  padding: var(--space-xl) 0 var(--space-lg);
}

.footer-content {
  display: grid;
  /* Default for mobile: 1 column */
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl); /* Increased margin for visual separation */
}

/* Style the logo text in the footer to be white, as the default logo text is main-color */
.footer-logo-section {
  /* On mobile, center the logo since it's the only item in its column */
  text-align: center;
}
.footer-logo {
  color: var(--white) !important;
  /* Also center the flex container for the logo */
  display: inline-flex !important;
  text-decoration: none;
}

.footer-section h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-md);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.85);

  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.btn-footer-download {
  background: var(--main-color);
  color: var(--white);
  box-shadow: none;
}

@media (min-width: 640px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .footer-logo-section {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-md);
  }

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

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

  .footer-content {
    grid-template-columns: auto repeat(4, 1fr);
    gap: var(--space-xl);
  }

  .footer-logo-section {
    grid-column: auto;
    text-align: left;
  }

  .footer-logo {
    justify-content: flex-start;
  }

  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-lg);
  }
}