/* Base styles */
:root {
  --primary-color: #6750a4;
  --primary-dark: #4a3880;
  --primary-light: #9a8ec7;
  --secondary-color: #03dac6;
  --background: #ffffff;
  --surface: #f5f5f5;
  --error: #b00020;
  --text-primary: #000000;
  --text-secondary: #666666;
  --text-on-primary: #ffffff;
  --text-on-secondary: #000000;
  --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  --transition-speed: 0.3s;
  --border-radius: 12px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji",
    "Segoe UI Symbol";
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background);
  overflow-x: hidden;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

/* Typography */
h1,
h2,
h3,
h4 {
  margin-bottom: var(--spacing-sm);
  line-height: 1.2;
  font-weight: 700;
}

h1 {
  font-size: clamp(2rem, 5vw, 2.75rem);
  letter-spacing: -0.5px;
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  letter-spacing: -0.3px;
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
}

h4 {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
}

p {
  margin-bottom: var(--spacing-sm);
  font-size: clamp(1rem, 1.5vw, 1.1rem);
  color: var(--text-secondary);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: all var(--transition-speed) ease;
  position: relative;
}

a:hover {
  color: var(--primary-dark);
}

a:after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -2px;
  left: 0;
  background-color: var(--primary-color);
  transition: width var(--transition-speed) ease;
}

a:hover:after {
  width: 100%;
}

ul {
  margin-left: 2rem;
  margin-bottom: var(--spacing-md);
  list-style-type: none;
}

ul li {
  position: relative;
  padding-left: var(--spacing-sm);
  margin-bottom: var(--spacing-xs);
}

ul li:before {
  content: "";
  position: absolute;
  left: -5px;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--primary-light);
}

/* Header */
header {
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--primary-dark) 100%
  );
  color: var(--text-on-primary);
  padding: var(--spacing-xl) 0;
  text-align: center;
  margin-bottom: var(--spacing-xl);
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

header::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.1) 0%,
    rgba(255, 255, 255, 0) 70%
  );
  pointer-events: none;
}

.logo-container {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
  animation: fadeInDown 0.8s ease-out;
}

.app-logo {
  width: 70px;
  height: 70px;
  margin-right: var(--spacing-sm);
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
  transition: transform var(--transition-speed) ease;
}

.app-logo:hover {
  transform: scale(1.05) rotate(5deg);
}

.tagline {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
  animation: fadeInUp 0.8s ease-out;
}

/* Main content */
main {
  padding: var(--spacing-lg) 0;
}

.app-info {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  align-items: start;
}

.app-description {
  flex: 1;
  min-width: 300px;
  animation: fadeInLeft 1s ease-out;
}

.app-screenshots {
  flex: 1;
  min-width: 300px;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInRight 1s ease-out;
}

.screenshot {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
  transition: transform var(--transition-speed) ease,
    box-shadow var(--transition-speed) ease;
}

.screenshot:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* Animations */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

/* Buttons */
.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin: var(--spacing-lg) 0;
}

.button {
  display: inline-block;
  padding: 0.9rem 1.8rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  transition: all var(--transition-speed) ease;
  text-decoration: none;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.button:after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
}

.button:before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.1);
  transition: all var(--transition-speed) ease;
  z-index: -1;
}

.button:hover {
  transform: translateY(-3px);
  box-shadow: 0 7px 15px rgba(0, 0, 0, 0.15);
  text-decoration: none;
}

.button:hover:before {
  width: 100%;
}

.button.primary {
  background-color: var(--primary-color);
  color: var(--text-on-primary);
}

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

.button.secondary {
  background-color: transparent;
  color: white;
  border: 2px solid var(--primary-color);
}

.button.secondary:hover {
  background-color: rgba(103, 80, 164, 0.05);
}

/* Contact section */
.contact {
  background-color: var(--surface);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--card-shadow);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-speed) ease,
    box-shadow var(--transition-speed) ease;
}

.contact:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.contact:before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(
    90deg,
    var(--primary-color),
    var(--secondary-color)
  );
}

/* Privacy Policy */
.policy-content {
  max-width: 800px;
  margin: 0 auto;
  background-color: var(--background);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
}

.policy-content h2,
.policy-content h3,
.policy-content h4 {
  margin-top: var(--spacing-lg);
  color: var(--primary-color);
}

.policy-content ul {
  margin-bottom: var(--spacing-lg);
}

/* Footer */
footer {
  background-color: var(--surface);
  padding: var(--spacing-lg) 0;
  margin-top: var(--spacing-xl);
  position: relative;
  box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.05);
}

footer:before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--primary-light),
    transparent
  );
}

footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

footer nav {
  display: flex;
  gap: var(--spacing-md);
}

footer a {
  font-weight: 500;
  transition: color var(--transition-speed) ease;
}

footer a:hover:after {
  width: 0;
}

footer p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 992px) {
  .container {
    width: 95%;
  }

  .app-info {
    gap: var(--spacing-lg);
  }
}

@media (max-width: 768px) {
  body {
    font-size: 0.95rem;
  }

  header {
    padding: var(--spacing-lg) 0;
  }

  .app-info {
    flex-direction: column;
    gap: var(--spacing-lg);
  }

  .app-screenshots {
    order: -1;
    margin-bottom: var(--spacing-md);
  }

  .screenshot {
    max-width: 90%;
  }

  .contact {
    padding: var(--spacing-md);
  }

  footer .container {
    flex-direction: column;
    text-align: center;
  }

  footer nav {
    margin-top: var(--spacing-sm);
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .container {
    width: 100%;
    padding: 0 var(--spacing-md);
  }

  .logo-container {
    flex-direction: column;
  }

  .app-logo {
    margin-right: 0;
    margin-bottom: var(--spacing-xs);
  }

  .cta-buttons {
    flex-direction: column;
    width: 100%;
  }

  .button {
    width: 100%;
    margin-bottom: var(--spacing-xs);
  }

  .policy-content {
    padding: var(--spacing-md);
  }
}