/* Task & Win - Modern, Clean, Bright Design */

/* CSS Variables */
:root {
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #3b82f6;
  --accent-color: #f59e0b;
  --accent-dark: #d97706;
  --success-color: #10b981;
  --background: #ffffff;
  --background-light: #f9fafb;
  --background-gray: #f3f4f6;
  --text-dark: #1f2937;
  --text-gray: #6b7280;
  --text-light: #9ca3af;
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --gradient-primary: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
  --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  color: var(--text-dark);
  background-color: var(--background);
  line-height: 1.6;
  font-size: 16px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-dark);
}

h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.875rem;
  margin-bottom: 0.75rem;
}

h4 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
  color: var(--text-gray);
}

a {
  text-decoration: none;
  color: var(--primary-color);
  transition: color 0.3s ease;
}

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

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header & Navigation */
header {
  background-color: var(--background);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  transition: opacity 0.3s ease;
}

.logo:hover {
  opacity: 0.8;
}

.logo-image {
  width: 48px;
  height: 48px;
  object-fit: contain;
  display: block;
  /* Works with both orange background and transparent backgrounds */
  border-radius: 12px;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--gradient-primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-dark);
  font-weight: 500;
  transition: color 0.3s ease;
}

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

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-dark);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  padding: 6rem 1.5rem;
  text-align: center;
}

.hero h1 {
  font-size: 3.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-gray);
  max-width: 600px;
  margin: 0 auto 2rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  text-align: center;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: white;
}

.btn-accent {
  background: var(--gradient-accent);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: white;
}

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

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

.btn-large {
  padding: 1.125rem 2.5rem;
  font-size: 1.125rem;
}

.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.25rem 2.5rem;
  font-size: 1.125rem;
  background: var(--gradient-accent);
  color: white;
  border-radius: 0.75rem;
  box-shadow: var(--shadow-xl);
}

.btn-download:hover {
  transform: translateY(-3px);
  box-shadow: 0 25px 30px -5px rgba(245, 158, 11, 0.3);
}

.btn-download svg {
  width: 24px;
  height: 24px;
}

/* Features Section */
.features {
  padding: 5rem 1.5rem;
  background-color: var(--background-light);
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.section-title p {
  font-size: 1.125rem;
  color: var(--text-gray);
  max-width: 600px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background: white;
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--primary-color);
}

.feature-card h3 {
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.feature-card p {
  color: var(--text-gray);
  line-height: 1.7;
}

/* Download Section */
.download-section {
  padding: 5rem 1.5rem;
  background: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
  color: white;
  text-align: center;
}

.download-section h2 {
  color: white;
  margin-bottom: 1rem;
}

.download-section p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.125rem;
  margin-bottom: 2rem;
}

.download-info {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 1.5rem;
  border-radius: 1rem;
  display: inline-block;
  margin-top: 2rem;
  font-size: 0.875rem;
}

/* Steps Section */
.steps {
  padding: 5rem 1.5rem;
  background-color: var(--background);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.step-card {
  text-align: center;
  padding: 2rem;
}

.step-number {
  width: 64px;
  height: 64px;
  background: var(--gradient-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 1.5rem;
}

.step-card h3 {
  margin-bottom: 1rem;
}

.step-card p {
  color: var(--text-gray);
}

/* About Section */
.about-section {
  padding: 5rem 1.5rem;
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about-content h2 {
  margin-bottom: 2rem;
}

.about-content p {
  font-size: 1.125rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

/* Footer */
footer {
  background-color: var(--text-dark);
  color: white;
  padding: 3rem 1.5rem 2rem;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
}

.footer-links a:hover {
  color: white;
}

.footer-copyright {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
}

/* Slogan Styling */
.slogan {
  color: var(--primary-color);
  font-weight: 600;
  text-align: center;
  line-height: 1.4;
}

.slogan-subtitle {
  color: var(--accent-color);
  font-weight: 600;
}

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* Responsive Design */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 1rem;
    box-shadow: var(--shadow-lg);
  }

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

  .mobile-menu-toggle {
    display: block;
  }

  h1 {
    font-size: 2.5rem;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  .hero {
    padding: 4rem 1.5rem;
  }

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

  .btn-download {
    padding: 1rem 2rem;
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
  }

  .btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
  }
}