/* ===============================================
   AI Mushroom Identifier - Website Styles
   Color Scheme: Royal Purple Theme
   =============================================== */

/* ========== CSS Variables ========== */
:root {
  /* Primary Colors - Purple Theme */
  --color-primary: #5B21B6;
  --color-secondary: #7C3AED;
  --color-accent: #8B5CF6;

  /* Complementary Colors */
  --color-indigo: #4C1D95;
  --color-indigo-blue: #6366F1;
  --color-periwinkle: #818CF8;

  /* CTA & Accent Colors */
  --color-cta-orange: #F97316;
  --color-pink: #EC4899;
  --color-rose: #F472B6;
  --color-gold: #FBBF24;
  --color-lavender: #C4B5FD;

  /* Neutrals */
  --color-warm-cream: #FAF5FF;
  --color-soft-purple: #F3E8FF;
  --color-gray: #9CA3AF;
  --color-dark-gray: #1F2937;
  --color-white: #FFFFFF;

  /* Semantic Colors */
  --color-success: #10B981;
  --color-warning: #FBBF24;
  --color-danger: #EF4444;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-family-rounded: ui-rounded, 'SF Pro Rounded', system-ui, sans-serif;

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
  --shadow-purple: 0 8px 20px rgba(91, 33, 182, 0.3);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

/* ========== Global Styles ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  color: var(--color-dark-gray);
  background-color: var(--color-warm-cream);
  line-height: 1.6;
  overflow-x: hidden;
}

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

h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: clamp(1.875rem, 4vw, 2.5rem);
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: var(--spacing-md);
}

p {
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
  color: var(--color-gray);
}

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

a:hover {
  color: var(--color-secondary);
}

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

.section {
  padding: var(--spacing-3xl) 0;
}

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

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

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
}

.logo-img {
  height: 40px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: var(--spacing-xl);
  list-style: none;
  align-items: center;
}

.nav-links a {
  font-weight: 500;
  color: var(--color-dark-gray);
  transition: color var(--transition-fast);
}

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

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

/* Mobile Navigation */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 70px;
    right: -100%;
    flex-direction: column;
    background-color: var(--color-white);
    width: 100%;
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: right var(--transition-normal);
    gap: var(--spacing-lg);
  }

  .nav-links.active {
    right: 0;
  }

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

/* ========== Buttons ========== */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-xl);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: var(--color-white);
  box-shadow: var(--shadow-purple);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(91, 33, 182, 0.4);
}

.btn-cta {
  background: linear-gradient(135deg, var(--color-cta-orange), var(--color-gold));
  color: var(--color-white);
  box-shadow: 0 8px 20px rgba(249, 115, 22, 0.3);
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(249, 115, 22, 0.4);
}

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

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

.btn-lg {
  padding: var(--spacing-md) var(--spacing-2xl);
  font-size: 1.125rem;
}

/* ========== Hero Section ========== */
.hero {
  background: linear-gradient(135deg, var(--color-warm-cream) 0%, var(--color-soft-purple) 100%);
  padding: var(--spacing-3xl) 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text h1 {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-text p {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xl);
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.hero-image {
  text-align: center;
}

.hero-image img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-cta {
    justify-content: center;
  }
}

/* ========== Features Section ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.feature-card {
  background-color: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  text-align: center;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}

.feature-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

/* ========== Screenshots Section ========== */
.screenshots {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-2xl);
}

.screenshot-img {
  width: 300px;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal);
}

.screenshot-img:hover {
  transform: scale(1.05);
}

/* ========== Footer ========== */
.footer {
  background-color: var(--color-indigo);
  color: var(--color-white);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.footer-section p,
.footer-section a {
  color: var(--color-lavender);
  font-size: 0.9rem;
}

.footer-section a:hover {
  color: var(--color-white);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  color: var(--color-lavender);
  font-size: 0.875rem;
}

/* ========== Contact Form ========== */
.contact-form {
  max-width: 600px;
  margin: var(--spacing-2xl) auto;
  background-color: var(--color-white);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

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

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--color-dark-gray);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--color-soft-purple);
  border-radius: var(--radius-sm);
  font-family: var(--font-family);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

.form-error {
  color: var(--color-danger);
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
  display: none;
}

.form-error.active {
  display: block;
}

/* ========== Legal Pages ========== */
.legal-content {
  max-width: 900px;
  margin: 0 auto;
  background-color: var(--color-white);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.legal-content h2 {
  color: var(--color-primary);
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 2px solid var(--color-soft-purple);
}

.legal-content h2:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.legal-content ul {
  margin-left: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.legal-content li {
  margin-bottom: var(--spacing-xs);
  color: var(--color-gray);
}

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

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

.mt-1 { margin-top: var(--spacing-md); }
.mt-2 { margin-top: var(--spacing-lg); }
.mt-3 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-md); }
.mb-2 { margin-bottom: var(--spacing-lg); }
.mb-3 { margin-bottom: var(--spacing-xl); }

/* ========== Responsive Utilities ========== */
@media (max-width: 768px) {
  .section {
    padding: var(--spacing-2xl) 0;
  }

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

  .screenshots {
    flex-direction: column;
    align-items: center;
  }

  .screenshot-img {
    width: 100%;
    max-width: 300px;
  }
}