/* ==========================================================================
   EndNote - Exact Match Stylesheet
   ========================================================================== */

:root {
  /* Colors based on screenshots */
  --color-primary: #562886; /* Dark purple */
  --color-secondary: #7B38A3; /* Lighter purple for headers */
  --color-accent: #EAFF2B; /* Bright yellow */
  --color-header: #1a1a1a; /* Very dark grey for header */
  --color-success: #68F48C; /* Pop-up green */
  --color-bg: #FFFFFF;
  --color-bg-light-blue: #f0f4f8;
  --color-bg-gradient: linear-gradient(180deg, #f0f7ff 0%, #f9f5ff 100%);
  --color-text-dark: #333;
  --color-text-muted: #555;
  
  /* Typography */
  --font-heading: 'Inter', sans-serif;
  --font-body: 'Manrope', sans-serif;
  
  /* Spacing & Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-pill: 9999px;
  
  --shadow-sm: 0 4px 10px rgba(0,0,0,0.05);
  --shadow-lg: 0 15px 30px rgba(0,0,0,0.1);
}

/* Base */
body {
  font-family: var(--font-body);
  color: var(--color-text-dark);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
}

h2, h3 { color: var(--color-secondary); }
h1 { color: var(--color-primary); }

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

/* Header */
.header-top-banner {
  background-color: var(--color-accent);
  color: black;
  text-align: center;
  padding: 8px 15px;
  font-size: 14px;
  font-weight: 600;
}

.header-main {
  background-color: var(--color-header);
  padding: 15px 0;
}

.header-main .logo {
  color: white;
  font-size: 24px;
  font-weight: 700;
  font-family: var(--font-heading);
}

.header-main .nav-links a {
  color: white;
  font-weight: 500;
  margin-left: 20px;
}

.btn-outline-light {
  border: 1px solid white;
  color: white;
  background: transparent;
}
.btn-outline-light:hover {
  background: white;
  color: var(--color-header);
}

.btn-yellow {
  background-color: var(--color-accent);
  color: black;
  font-weight: 700;
  border: none;
}
.btn-yellow:hover {
  background-color: #d8e91d;
}

.btn-purple {
  background-color: var(--color-primary);
  color: white;
}
.btn-purple:hover {
  background-color: #46206d;
  color: white;
}

.btn-outline-purple {
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  background: white;
}
.btn-outline-purple:hover {
  background: var(--color-bg-light-blue);
  color: var(--color-primary);
}

.btn {
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

/* Hero Section */
.hero-section {
  background: var(--color-bg-gradient);
  padding: 80px 0;
  position: relative;
}

.hero-title {
  font-size: 52px;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 20px;
  color: var(--color-text-muted);
  margin-bottom: 40px;
}

.hero-image-container {
  position: relative;
}

.green-popup {
  position: absolute;
  left: -20px;
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--color-success);
  padding: 20px;
  border-radius: var(--radius-sm);
  color: black;
  z-index: 10;
  box-shadow: var(--shadow-sm);
  max-width: 250px;
}
.green-popup h5 { font-weight: 800; font-size: 18px; margin-bottom: 10px;}
.green-popup ul { padding-left: 20px; margin-bottom: 0; }
.green-popup li { font-weight: 600; margin-bottom: 5px; }

.trust-text {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-secondary);
  text-align: center;
  margin-top: 60px;
}

/* Features List */
.feature-list-item {
  margin-bottom: 20px;
}
.feature-list-item strong {
  color: #333;
}
.feature-list-wrapper {
  padding-left: 20px;
  color: var(--color-text-muted);
  line-height: 1.8;
}
.feature-list-wrapper li { margin-bottom: 15px; }

/* Dark Assistant Section */
.assistant-section {
  background-color: #0a0a0a;
  background-image: url('../images/research_assistant_bg.png');
  background-size: cover;
  background-position: right center;
  background-repeat: no-repeat;
  color: white;
  padding: 100px 0;
  position: relative;
}
.assistant-section::before {
  content: '';
  position: absolute;
  left: 0; top: 0; width: 60%; height: 100%;
  background: linear-gradient(90deg, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.7) 70%, transparent 100%);
}
.assistant-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
}
.assistant-content h2 {
  color: white;
  font-size: 40px;
  margin-bottom: 30px;
}
.assistant-content p {
  color: #ddd;
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 30px;
}

/* Columns Section */
.benefits-section {
  background: var(--color-bg-gradient);
  padding: 80px 0;
}
.benefits-section h2 {
  font-size: 36px;
  margin-bottom: 50px;
}
.benefit-col h4 {
  color: #111;
  margin-top: 15px;
  margin-bottom: 15px;
}
.benefit-col p, .benefit-col li {
  color: var(--color-text-muted);
  font-size: 15px;
}
.benefit-col a {
  font-weight: 700;
  display: inline-block;
  margin-top: 15px;
}
.benefit-icon {
  width: 60px;
  height: 60px;
}

/* Mobile Responsive Fixes */
html, body {
  overflow-x: hidden;
  width: 100%;
}
.green-popup {
  left: 10px;
  right: 10px;
  max-width: 100%;
}
@media (min-width: 992px) {
  .green-popup {
    left: -20px;
    max-width: 250px;
  }
}
.w-50 {
  width: 100% !important;
}
@media (min-width: 992px) {
  .w-50 {
    width: 50% !important;
  }
}
.navbar-toggler:focus {
    box-shadow: none;
}