/*
Theme Name: Web3 Nepal
Theme URI: https://web3nepal.com
Author: Web3 Nepal
Author URI: https://web3nepal.com
Description: Official theme for Web3 Nepal — Nepal's technology education, research, and digital innovation initiative.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: web3nepal
Tags: technology, education, blockchain, cybersecurity, ai, nepal
*/

/* =============================================
   CSS Custom Properties
============================================= */
:root {
  --clr-primary:    #00c8ff;
  --clr-secondary:  #7b2ff7;
  --clr-accent:     #ff6b35;
  --clr-dark:       #0a0e1a;
  --clr-dark-2:     #111827;
  --clr-dark-3:     #1f2937;
  --clr-surface:    #1a2035;
  --clr-border:     rgba(0, 200, 255, 0.15);
  --clr-text:       #e2e8f0;
  --clr-muted:      #94a3b8;
  --clr-white:      #ffffff;

  --gradient-hero:  linear-gradient(135deg, #0a0e1a 0%, #111827 50%, #0d1b2a 100%);
  --gradient-card:  linear-gradient(135deg, rgba(0,200,255,0.05) 0%, rgba(123,47,247,0.05) 100%);
  --gradient-btn:   linear-gradient(90deg, #00c8ff, #7b2ff7);

  --font-sans: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;

  --shadow-glow:  0 0 30px rgba(0, 200, 255, 0.15);
  --shadow-card:  0 4px 24px rgba(0, 0, 0, 0.4);

  --transition: 0.3s ease;
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--clr-dark);
  color: var(--clr-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--clr-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--clr-white); }
ul { list-style: none; }

/* =============================================
   Typography
============================================= */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--clr-white);
}
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
p  { color: var(--clr-muted); font-size: 1.05rem; }

/* =============================================
   Layout Utilities
============================================= */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section {
  padding-block: 5rem;
}

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

.section-header .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-primary);
  background: rgba(0,200,255,0.1);
  border: 1px solid rgba(0,200,255,0.25);
  border-radius: 50px;
  padding: 0.3rem 1rem;
  margin-bottom: 1rem;
}

.section-header p {
  max-width: 600px;
  margin-inline: auto;
  margin-top: 0.75rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

/* =============================================
   Buttons
============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-btn);
  color: var(--clr-white);
  box-shadow: 0 4px 20px rgba(0,200,255,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,200,255,0.45);
  color: var(--clr-white);
}

.btn-outline {
  background: transparent;
  color: var(--clr-primary);
  border: 1.5px solid var(--clr-primary);
}
.btn-outline:hover {
  background: rgba(0,200,255,0.1);
  color: var(--clr-primary);
  transform: translateY(-2px);
}

/* =============================================
   Cards
============================================= */
.card {
  background: var(--gradient-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,200,255,0.03), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.card:hover {
  border-color: rgba(0,200,255,0.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.card:hover::before { opacity: 1; }

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(0,200,255,0.1);
  border: 1px solid rgba(0,200,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 1.25rem;
}

/* =============================================
   Navigation
============================================= */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--clr-border);
  transition: all var(--transition);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--clr-white);
  text-decoration: none;
}

.site-logo:hover { color: var(--clr-primary); }

.logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--gradient-btn);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1rem;
  color: white;
  flex-shrink: 0;
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.site-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--clr-muted);
  transition: color var(--transition);
}
.site-nav a:hover,
.site-nav .current-menu-item a {
  color: var(--clr-primary);
}

.nav-cta { margin-left: 0.5rem; }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: all var(--transition);
}

/* =============================================
   Hero Section
============================================= */
.hero {
  min-height: 100vh;
  background: var(--gradient-hero);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 70px;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,200,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,200,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}
.hero-glow-1 {
  background: rgba(0, 200, 255, 0.08);
  top: -100px;
  right: -100px;
}
.hero-glow-2 {
  background: rgba(123, 47, 247, 0.08);
  bottom: -100px;
  left: -100px;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding-block: 5rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0,200,255,0.08);
  border: 1px solid rgba(0,200,255,0.2);
  border-radius: 50px;
  padding: 0.4rem 1.1rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-primary);
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
}

.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--clr-primary);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero h1 {
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, #ffffff 30%, #00c8ff 70%, #7b2ff7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  max-width: 620px;
  margin-bottom: 2.5rem;
  color: var(--clr-muted);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--clr-border);
  flex-wrap: wrap;
}

.stat-item { text-align: left; }
.stat-number {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-btn);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.25rem;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--clr-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* =============================================
   Focus Areas Section
============================================= */
.focus-areas { background: var(--clr-dark-2); }

/* =============================================
   About / Mission Section
============================================= */
.about-section {
  background: var(--clr-dark);
}

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

.about-visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--gradient-card);
  border: 1px solid var(--clr-border);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.about-stat-card {
  background: rgba(0,200,255,0.05);
  border: 1px solid rgba(0,200,255,0.15);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.about-stat-icon {
  font-size: 1.8rem;
  width: 48px;
  text-align: center;
}

.about-stat-text strong {
  display: block;
  color: var(--clr-white);
  font-size: 1.1rem;
}

.about-stat-text span {
  font-size: 0.8rem;
  color: var(--clr-muted);
}

.about-text blockquote {
  border-left: 3px solid var(--clr-primary);
  padding-left: 1.25rem;
  margin: 1.5rem 0;
  font-size: 1rem;
  font-style: italic;
  color: var(--clr-text);
}

/* =============================================
   Programs Section
============================================= */
.programs { background: var(--clr-dark-2); }

/* =============================================
   Mission Values
============================================= */
.values { background: var(--clr-dark); }

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

.value-number {
  font-size: 3rem;
  font-weight: 900;
  background: var(--gradient-btn);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.3;
  line-height: 1;
  margin-bottom: 0.5rem;
}

/* =============================================
   CTA Banner
============================================= */
.cta-banner {
  background: linear-gradient(135deg, rgba(0,200,255,0.1) 0%, rgba(123,47,247,0.1) 100%);
  border-top: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
  text-align: center;
  padding-block: 5rem;
}

.cta-banner h2 { margin-bottom: 1rem; }
.cta-banner p { max-width: 500px; margin-inline: auto; margin-bottom: 2rem; }

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

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

.footer-brand p {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  max-width: 260px;
}

.footer-col h4 {
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-muted);
  margin-bottom: 1.25rem;
}

.footer-col ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col a {
  font-size: 0.9rem;
  color: var(--clr-muted);
}
.footer-col a:hover { color: var(--clr-primary); }

.footer-bottom {
  border-top: 1px solid var(--clr-border);
  padding-block: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: 0.85rem;
}

.footer-socials {
  display: flex;
  gap: 0.75rem;
}

.social-link {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--clr-muted);
  transition: all var(--transition);
}

.social-link:hover {
  border-color: var(--clr-primary);
  color: var(--clr-primary);
  background: rgba(0,200,255,0.08);
}

/* =============================================
   Responsive
============================================= */
@media (max-width: 968px) {
  .about-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .site-nav { display: none; }
  .site-nav.open {
    display: flex;
    position: fixed;
    inset: 70px 0 0 0;
    background: var(--clr-dark);
    padding: 2rem;
    flex-direction: column;
  }
  .site-nav.open ul { flex-direction: column; gap: 1.25rem; }
  .site-nav.open a { font-size: 1.1rem; }
  .menu-toggle { display: flex; }
  .nav-cta.btn { display: none; }
  .hero-stats { gap: 1.5rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { text-align: center; justify-content: center; }
}