/* ============================================
   PetPal Landing Page Styles
   Minimal, modern design with coral theme
   ============================================ */

/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
  /* Colors - Coral Theme */
  --color-primary: #FF8A65;
  --color-primary-dark: #E67451;
  --color-primary-light: #FFB199;

  --color-text-primary: #3D3935;
  --color-text-secondary: #6B645B;
  --color-text-muted: #B5A89A;

  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #FAF9F7;
  --color-bg-tertiary: #F5F3F0;

  --color-border: #E8E3DB;
  --color-success: #66BB6A;
  --color-error: #EF5350;

  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-2xl: 64px;

  /* Typography */
  --font-family: 'Nunito', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --font-size-2xl: 32px;
  --font-size-3xl: 48px;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

  /* Transitions */
  --transition: all 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
}

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

/* ============================================
   Layout
   ============================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

section {
  padding: var(--spacing-2xl) 0;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  background: linear-gradient(135deg, #FAF9F7 0%, #F5F3F0 100%);
  padding: var(--spacing-2xl) 0;
  text-align: center;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--spacing-md);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.hero-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.2;
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   Notify Me Section
   ============================================ */
.notify-section {
  margin-top: var(--spacing-xl);
}

.notify-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.notify-form {
  display: flex;
  gap: var(--spacing-sm);
  max-width: 500px;
  margin: 0 auto;
  flex-wrap: wrap;
  justify-content: center;
}

.email-input {
  flex: 1;
  min-width: 280px;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-base);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  transition: var(--transition);
}

.email-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(255, 138, 101, 0.1);
}

.btn-primary {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: white;
  background-color: var(--color-primary);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.form-message {
  margin-top: var(--spacing-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  min-height: 20px;
}

.form-message.success {
  color: var(--color-success);
}

.form-message.error {
  color: var(--color-error);
}

/* ============================================
   Features Section
   ============================================ */
.features {
  background-color: var(--color-bg-primary);
}

.section-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text-primary);
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.feature-card {
  padding: var(--spacing-lg);
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.feature-icon svg {
  width: 48px;
  height: 48px;
  color: var(--color-primary);
}

.contact-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.contact-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}

.feature-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.feature-description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ============================================
   Screenshots Section
   ============================================ */
.screenshots {
  background-color: var(--color-bg-secondary);
}

.screenshot-container {
  max-width: 1000px;
  margin: 0 auto;
}

.screenshot-placeholder {
  background-color: var(--color-bg-tertiary);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-lg);
}

/* ============================================
   Download Section
   ============================================ */
.download {
  background-color: var(--color-bg-primary);
  text-align: center;
}

.store-badges {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  margin: var(--spacing-xl) 0;
}

.store-badge {
  display: block;
  transition: var(--transition);
}

.store-badge:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

.store-badge img {
  height: 60px;
  width: auto;
}

.download-note {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--spacing-md);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background-color: var(--color-bg-secondary);
  padding: var(--spacing-xl) 0;
  text-align: center;
  border-top: 1px solid var(--color-border);
}

.footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}

.footer-link {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  transition: var(--transition);
}

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

.footer-divider {
  color: var(--color-text-muted);
}

.footer-copyright {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: var(--spacing-xl) 0;
  }

  .hero-title {
    font-size: var(--font-size-2xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-base);
  }

  .logo {
    width: 100px;
    height: 100px;
  }

  .notify-form {
    flex-direction: column;
    width: 100%;
  }

  .email-input {
    width: 100%;
    min-width: 100%;
  }

  .btn-primary {
    width: 100%;
  }

  .section-title {
    font-size: var(--font-size-xl);
  }

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

  .store-badges {
    flex-direction: column;
  }

  section {
    padding: var(--spacing-xl) 0;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
  }

  .hero-title {
    font-size: var(--font-size-xl);
  }

  .logo {
    width: 80px;
    height: 80px;
  }

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

/* ============================================
   Utility Classes
   ============================================ */
.text-center {
  text-align: center;
}

.mt-sm {
  margin-top: var(--spacing-sm);
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}