/*
Theme Name: Block3Fund
Theme URI: https://block3fund.com
Author: Block3Fund
Author URI: https://block3fund.com
Description: A premium one-page theme for Block3Fund - Blockchain Venture Capital
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: block3fund
Tags: one-page, custom-background, custom-logo, custom-menu, featured-images, theme-options
*/

/* ========================================
   CSS Variables / Design Tokens
======================================== */
:root {
  --primary: #1E4D5C;
  --primary-light: #2A6B7C;
  --primary-dark: #153A47;
  --accent: #F5B841;
  --accent-light: #F7C85E;
  --background: #0A1A1F;
  --background-light: #0F2329;
  --foreground: #FFFFFF;
  --foreground-muted: #A0B3BA;
  --border: rgba(255, 255, 255, 0.1);
  --card-bg: rgba(30, 77, 92, 0.2);
  --font-heading: 'Playfair Display', serif;
  --font-body: 'Inter', sans-serif;
}

/* ========================================
   Reset & Base Styles
======================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--background);
  color: var(--foreground);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

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

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

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

p {
  color: var(--foreground-muted);
}

/* ========================================
   Utility Classes
======================================== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: rgba(245, 184, 65, 0.1);
  border: 1px solid rgba(245, 184, 65, 0.3);
  border-radius: 9999px;
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.gradient-text {
  background: linear-gradient(135deg, var(--foreground), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: var(--background);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(245, 184, 65, 0.3);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--foreground);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--accent);
}

/* ========================================
   Header / Navigation
======================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: all 0.3s ease;
}

.site-header.scrolled {
  background: rgba(10, 26, 31, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

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

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

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

.site-logo span {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--foreground);
}

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

.main-nav a {
  color: var(--foreground-muted);
  font-weight: 500;
  transition: color 0.3s ease;
}

.main-nav a:hover {
  color: var(--accent);
}

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

@media (max-width: 768px) {
  .main-nav {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .main-nav.active {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--background);
    padding: 1rem;
    border-bottom: 1px solid var(--border);
  }
  
  .main-nav.active ul {
    flex-direction: column;
    gap: 1rem;
  }
}

/* ========================================
   Hero Section
======================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 20%, rgba(30, 77, 92, 0.4) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 80%, rgba(245, 184, 65, 0.1) 0%, transparent 50%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero h1 {
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 4rem;
  padding-top: 4rem;
  border-top: 1px solid var(--border);
}

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

.stat-value {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  display: block;
}

.stat-label {
  color: var(--foreground-muted);
  font-size: 0.875rem;
}

@media (max-width: 768px) {
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ========================================
   About Section
======================================== */
.about {
  background: var(--background-light);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}

.about-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
}

.about-card h3 {
  color: var(--accent);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.goals-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.goal-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.5rem;
  text-align: center;
}

.goal-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  display: block;
  margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
  .about-grid,
  .goals-grid {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   Approach Section
======================================== */
.approach-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.approach-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
  transition: all 0.3s ease;
}

.approach-card:hover {
  border-color: var(--accent);
  transform: translateY(-5px);
}

.approach-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--accent);
  font-size: 1.5rem;
}

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

.approach-quote {
  text-align: center;
  margin-top: 4rem;
  padding: 3rem;
  background: linear-gradient(135deg, rgba(30, 77, 92, 0.3), rgba(245, 184, 65, 0.1));
  border-radius: 1rem;
  border: 1px solid var(--border);
}

.approach-quote blockquote {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-style: italic;
  color: var(--foreground);
}

@media (max-width: 768px) {
  .approach-grid {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   Education Section
======================================== */
.education {
  background: var(--background-light);
}

.education-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.education-content h2 {
  margin-bottom: 1.5rem;
}

.education-content p {
  margin-bottom: 2rem;
}

.education-topics {
  display: grid;
  gap: 1.5rem;
}

.topic-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.5rem;
  display: flex;
  gap: 1rem;
}

.topic-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .education-grid {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   Contact Section
======================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-form {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  color: var(--foreground);
  font-family: var(--font-body);
  transition: border-color 0.3s ease;
}

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

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.file-upload {
  border: 2px dashed var(--border);
  border-radius: 0.5rem;
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.3s ease;
}

.file-upload:hover {
  border-color: var(--accent);
}

.file-upload input {
  display: none;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

.contact-item h4 {
  margin-bottom: 0.25rem;
}

.contact-item a {
  color: var(--accent);
}

.contact-item a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   Newsletter Section
======================================== */
.newsletter {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  text-align: center;
}

.newsletter h2 {
  margin-bottom: 1rem;
}

.newsletter p {
  margin-bottom: 2rem;
  color: rgba(255, 255, 255, 0.8);
}

.newsletter-form {
  display: flex;
  gap: 1rem;
  max-width: 500px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  padding: 0.875rem 1rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 0.5rem;
  color: var(--foreground);
}

.newsletter-form input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 768px) {
  .newsletter-form {
    flex-direction: column;
  }
}

/* ========================================
   Footer
======================================== */
.site-footer {
  background: var(--background);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  margin-top: 1rem;
  max-width: 300px;
}

.footer-links h4 {
  color: var(--foreground);
  margin-bottom: 1.5rem;
}

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

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--foreground-muted);
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  font-size: 0.875rem;
}

.footer-disclaimer {
  font-size: 0.75rem;
  color: var(--foreground-muted);
  max-width: 800px;
  text-align: center;
  margin: 2rem auto 0;
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ========================================
   Modal Styles
======================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--background-light);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
  max-width: 450px;
  width: 90%;
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.modal-close {
  background: none;
  border: none;
  color: var(--foreground-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ========================================
   Animations
======================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }