@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Startup Amichevole - Friendly & Playful Theme */
  --color-bg: #ffffff; 
  --color-bg-alt: #fcfaff; /* Super soft pastel purple */
  --color-text: #334155; /* Slate 700 - softer than pure black */
  --color-text-light: #64748b; /* Slate 500 */
  --color-border: #f1f5f9; /* Very soft border */
  
  /* Accent Colors */
  --color-primary: #7c3aed; /* The logo's purple */
  --color-accent: #f43f5e; /* Vibrant rose for exciting highlights */
  
  /* Pastel Blocks */
  --pastel-purple: #f3e8ff;
  --pastel-blue: #e0f2fe;
  --pastel-yellow: #fef08a;
  --pastel-green: #dcfce7;
  
  /* Typography */
  --font-main: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* Layout - Very rounded */
  --container-width: 1100px;
  --radius-sm: 16px;
  --radius-md: 24px;
  --radius-lg: 32px;
  --radius-pill: 9999px;
  
  /* Soft Shadows & Bouncy Transitions */
  --shadow-soft: 0 10px 40px -10px rgba(124, 58, 237, 0.1);
  --shadow-hover: 0 20px 50px -10px rgba(124, 58, 237, 0.15);
  --transition-bounce: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --transition-fast: 0.2s ease;
}

/* =========================================
   RESET & BASE STYLES
   ========================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  color: #0f172a; /* Darker slate for headings */
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.02em;
}

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

ul {
  list-style: none;
}

img, svg {
  max-width: 100%;
  display: block;
}

/* =========================================
   LAYOUT UTILITIES
   ========================================= */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 8rem 0; 
  position: relative;
  overflow: hidden;
}

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

.section-primary {
  background: linear-gradient(135deg, #1e1b4b, #4c1d95, #7c3aed);
  color: white;
}
.section-primary .h2, .section-primary .h3 {
  color: white;
}

.grid {
  display: grid;
  gap: 2.5rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: 0.75rem; }
.gap-2 { gap: 1.5rem; }
.gap-3 { gap: 2rem; }

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

/* Friendly Blobs & Glows */
.ai-glow-bg {
  position: absolute;
  width: 500px;
  height: 500px;
  background: var(--pastel-purple);
  border-radius: 50%;
  top: -150px;
  right: -100px;
  z-index: -1;
  filter: blur(80px);
  opacity: 0.6;
  pointer-events: none;
}

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

/* =========================================
   COMPONENTS
   ========================================= */

/* Typography */
.h1 { font-size: clamp(2.25rem, 4.5vw, 3.5rem); margin-bottom: 1.5rem; font-weight: 800; line-height: 1.2; }
.h2 { font-size: clamp(2rem, 5vw, 3rem); margin-bottom: 1.5rem; font-weight: 800; }
.h3 { font-size: 1.5rem; margin-bottom: 1rem; font-weight: 700; }
.lead { font-size: 1.125rem; color: var(--color-text-light); margin-bottom: 2.5rem; font-weight: 400; line-height: 1.8; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-bounce);
  font-size: 1rem;
  border: 2px solid transparent;
}

.btn-primary, .btn-ai {
  background-color: var(--color-primary);
  color: white;
  box-shadow: 0 8px 25px -5px rgba(124, 58, 237, 0.4);
}

.btn-primary:hover, .btn-ai:hover {
  background-color: #6d28d9;
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 15px 35px -5px rgba(124, 58, 237, 0.5);
  color: white;
}

.btn-secondary {
  background-color: white;
  color: var(--color-primary);
  border-color: var(--pastel-purple);
  box-shadow: 0 4px 15px rgba(0,0,0,0.03);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(124, 58, 237, 0.15);
}

/* Cards (Super Soft & Friendly) */
.card {
  background: white;
  border-radius: var(--radius-md);
  padding: 2.5rem;
  border: none;
  box-shadow: var(--shadow-soft);
  transition: all var(--transition-bounce);
  display: flex;
  flex-direction: column;
}

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

.card-icon {
  width: 60px;
  height: 60px;
  background-color: var(--pastel-purple);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.card-icon svg {
  width: 32px;
  height: 32px;
}

/* Pricing Cards */
.pricing-card {
  position: relative;
  height: 100%;
  background: white;
  border-radius: var(--radius-md);
  padding: 2.5rem;
  box-shadow: var(--shadow-soft);
  transition: all var(--transition-bounce);
  display: flex;
  flex-direction: column;
  border: 3px solid transparent;
}
.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}
.pricing-card.popular {
  border-color: var(--color-primary);
  background: white;
  transform: scale(1.02);
}
.pricing-card.popular:hover {
  transform: translateY(-8px) scale(1.02);
}
.pricing-card.popular .popular-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: white;
  padding: 0.5rem 1.5rem;
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 10px rgba(124, 58, 237, 0.3);
}
.pricing-price {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-text);
  margin: 1rem 0;
  line-height: 1;
}
.pricing-price span {
  font-size: 1.125rem;
  color: var(--color-text-light);
  font-weight: 500;
}
.pricing-features {
  margin: 2rem 0;
  flex-grow: 1;
}
.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
  color: var(--color-text);
}
.pricing-features svg {
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 4px;
}

/* Header & Navbar */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-fast);
  padding: 1.5rem 0;
}

.header.scrolled {
  padding: 1rem 0;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  box-shadow: 0 4px 20px rgba(0,0,0,0.02);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo img {
  height: 40px;
  width: auto;
  transition: transform var(--transition-bounce);
}

.logo:hover img {
  transform: scale(1.05) rotate(-2deg);
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav-link {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-light);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 3px;
  bottom: -6px;
  left: 50%;
  background-color: var(--color-accent);
  border-radius: 4px;
  transition: all var(--transition-bounce);
  transform: translateX(-50%);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-primary);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-primary);
}

/* Form Styles */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.form-control {
  width: 100%;
  padding: 1.25rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 1rem;
  transition: all var(--transition-bounce);
  background-color: #f8fafc;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  background-color: white;
  box-shadow: 0 10px 20px rgba(124, 58, 237, 0.1);
  transform: translateY(-2px);
}

/* Footer */
.footer {
  border-top: 1px solid var(--color-border);
  background-color: #f8fafc;
  padding: 6rem 0 3rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-heading {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
}

.footer-text {
  color: var(--color-text-light);
  margin-bottom: 1rem;
  font-size: 0.9375rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-links a {
  color: var(--color-text-light);
  font-weight: 500;
}

.footer-links a:hover {
  color: var(--color-accent);
  transform: translateX(4px);
  display: inline-block;
}

.footer-bottom {
  border-top: 2px dashed var(--color-border);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-text-light);
  font-size: 0.875rem;
  font-weight: 500;
}

.social-links {
  display: flex;
  gap: 1.5rem;
}

.social-link {
  color: var(--color-primary);
  background: var(--pastel-purple);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all var(--transition-bounce);
}

.social-link:hover {
  background: var(--color-primary);
  color: white;
  transform: scale(1.1) rotate(10deg);
}

/* Animations & Utils */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.section-title {
  margin-bottom: 4rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  background-color: var(--pastel-purple);
  color: var(--color-primary);
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

/* Responsive */
@media (max-width: 992px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 100%;
    background-color: white;
    flex-direction: column;
    justify-content: center;
    transition: right 0.3s ease;
    z-index: 999;
  }
  
  .nav-links.active { right: 0; }
  .nav-link { font-size: 1.5rem; }
  .mobile-menu-btn { display: block; z-index: 1001; position: relative; }
  .header .btn { display: none; }
  
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 3rem; }
  .footer-bottom { flex-direction: column; gap: 1.5rem; text-align: center; }
  
  .section { padding: 4rem 0; }
}