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

:root {
  /* Colors */
  --bg-dark: #040409;
  --bg-card: rgba(255, 255, 255, 0.02);
  --bg-card-hover: rgba(255, 255, 255, 0.04);
  --border-card: rgba(255, 255, 255, 0.05);
  --border-card-hover: rgba(255, 255, 255, 0.12);
  
  --color-purple: #8b5cf6;
  --color-cyan: #06b6d4;
  --color-green: #10b981;
  --color-magenta: #ec4899;
  
  --glow-purple: rgba(139, 92, 246, 0.15);
  --glow-cyan: rgba(6, 182, 212, 0.15);
  --glow-green: rgba(16, 185, 129, 0.15);
  
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dark: #6b7280;
  
  /* Fonts */
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Layout */
  --max-width: 1200px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Ambient Animated Mesh Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: 
    radial-gradient(circle at 20% 30%, var(--glow-purple) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, var(--glow-cyan) 0%, transparent 45%),
    radial-gradient(circle at 50% 10%, rgba(236, 72, 153, 0.08) 0%, transparent 35%);
  pointer-events: none;
  animation: bgPulse 20s infinite alternate ease-in-out;
}

@keyframes bgPulse {
  0% {
    filter: hue-rotate(0deg) saturate(1);
  }
  100% {
    filter: hue-rotate(45deg) saturate(1.2);
  }
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

p {
  color: var(--text-muted);
  font-weight: 300;
}

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

/* Utility Classes & Components */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
}

.text-gradient-purple {
  background: linear-gradient(135deg, #a78bfa 0%, var(--color-purple) 50%, #7c3aed 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-cyan {
  background: linear-gradient(135deg, #22d3ee 0%, var(--color-cyan) 50%, #0891b2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-green {
  background: linear-gradient(135deg, #34d399 0%, var(--color-green) 50%, #059669 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-multi {
  background: linear-gradient(135deg, #60a5fa, #a78bfa, #f472b6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-card);
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-family: var(--font-heading);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-main);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.badge.purple { border-color: rgba(139, 92, 246, 0.3); color: #c084fc; }
.badge.cyan { border-color: rgba(6, 182, 212, 0.3); color: #22d3ee; }
.badge.green { border-color: rgba(16, 185, 129, 0.3); color: #34d399; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.85rem 2rem;
  border-radius: 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-purple) 0%, #7c3aed 100%);
  color: #fff;
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(124, 58, 237, 0.4), 0 0 15px rgba(139, 92, 246, 0.2);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.02);
  border-color: var(--border-card);
  color: var(--text-main);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-card-hover);
  transform: translateY(-2px);
}

.btn-cyan {
  background: linear-gradient(135deg, var(--color-cyan) 0%, #0891b2 100%);
  color: #fff;
  box-shadow: 0 4px 20px rgba(6, 182, 212, 0.25);
}

.btn-cyan:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.4), 0 0 15px rgba(6, 182, 212, 0.2);
}

/* Glassmorphism Section Headers */
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 4rem auto;
}

.section-header h2 {
  font-size: 2.5rem;
  margin-top: 1rem;
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.1rem;
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(4, 4, 9, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  transition: var(--transition);
}

header.scrolled {
  background: rgba(4, 4, 9, 0.85);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.6rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-main);
}

.logo span {
  color: var(--color-cyan);
}

.brand-logo {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  object-fit: cover;
  border: 1.5px solid var(--border-card);
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.15);
  transition: var(--transition);
}

.logo:hover .brand-logo {
  border-color: rgba(56, 189, 248, 0.5);
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.3);
}

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

nav a {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 0.5rem 0;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-purple), var(--color-cyan));
  transition: var(--transition);
}

nav a:hover, nav a.active {
  color: var(--text-main);
}

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

.lang-switch-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-card);
  color: var(--text-muted);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8rem;
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  line-height: 1;
}

.lang-switch-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-card-hover);
  color: var(--text-main);
  transform: translateY(-1px);
}

.lang-switch-btn span {
  font-size: 0.75rem;
  transition: var(--transition);
}

.lang-switch-btn .active-lang {
  color: var(--color-cyan);
  font-weight: 700;
}

.lang-switch-btn .inactive-lang {
  color: var(--text-dark);
}

.lang-switch-btn .lang-divider {
  color: rgba(255, 255, 255, 0.15);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  background: none;
  border: none;
}

.menu-toggle span {
  display: block;
  width: 25px;
  height: 2px;
  background-color: var(--text-main);
  transition: var(--transition);
}

/* Sections Base */
section {
  padding: 100px 0;
  position: relative;
}

/* Hero Section */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 140px;
  overflow: hidden;
}

.hero-wrapper {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 4rem;
  font-weight: 700;
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.hero-founder-tag {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-top: -0.5rem;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.hero-founder-tag span {
  font-size: 0.95rem;
}

.hero-founder-tag .config-founder {
  color: var(--color-purple);
  text-shadow: 0 0 10px rgba(139, 92, 246, 0.2);
  font-weight: 600;
}

.hero-content p {
  font-size: 1.25rem;
  margin-bottom: 2.5rem;
  max-width: 550px;
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

/* Visual Canvas element/illustration for hero */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.glow-sphere {
  position: absolute;
  width: 350px;
  height: 350px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.2) 0%, transparent 70%);
  filter: blur(20px);
  animation: float 6s ease-in-out infinite;
}

.tech-grid-art {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem; /* Reduced gap to give boxes more width */
  z-index: 2;
  perspective: 1000px;
  width: 100%;
  max-width: 360px; /* Established clear width container */
}

.art-node {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 16px;
  aspect-ratio: 1;
  padding: 1.25rem 0.5rem; /* Restored standard padding height */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(10px);
  transition: var(--transition);
  animation: floatNode 8s ease-in-out infinite;
}

.art-node svg {
  width: 36px; /* Slightly scaled icon to fit text space */
  height: 36px;
  margin-bottom: 0.5rem;
}

.art-node span {
  font-family: var(--font-heading);
  font-size: 0.85rem; /* Restored to readable, standard font size */
  font-weight: 500;
  white-space: nowrap; /* Forces text to stay on a single line */
  text-align: center;
}

.art-node:nth-child(1) { animation-delay: 0s; color: var(--color-purple); }
.art-node:nth-child(2) { animation-delay: 1.5s; color: var(--color-cyan); }
.art-node:nth-child(3) { animation-delay: 3s; color: var(--color-green); }
.art-node:nth-child(4) { animation-delay: 4.5s; color: var(--color-magenta); }
.art-node:nth-child(5) { animation-delay: 6s; color: #3b82f6; }
.art-node:nth-child(6) { animation-delay: 0.5s; color: #f59e0b; }

.art-node:hover {
  transform: scale(1.05) translateZ(10px);
  border-color: currentColor;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 20px currentColor;
}

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-20px) scale(1.05); }
}

@keyframes floatNode {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

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

.services-grid .card-wide {
  grid-column: span 2;
}

/* Hover-glow Interactive Cards */
.card-glow {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 16px;
  padding: 3rem 2.5rem;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.card-glow::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(800px circle at var(--mouse-x, 0px) var(--mouse-y, 0px), rgba(255, 255, 255, 0.05), transparent 40%);
  pointer-events: none;
  z-index: 1;
}

/* Custom glow borders on hover */
.card-glow:hover {
  transform: translateY(-5px);
  border-color: var(--border-card-hover);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.card-icon {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-card);
  transition: var(--transition);
}

.card-glow:hover .card-icon {
  background: rgba(255, 255, 255, 0.05);
  transform: scale(1.1);
}

.card-icon.purple { color: var(--color-purple); border-color: rgba(139, 92, 246, 0.2); }
.card-icon.cyan { color: var(--color-cyan); border-color: rgba(6, 182, 212, 0.2); }
.card-icon.green { color: var(--color-green); border-color: rgba(16, 185, 129, 0.2); }
.card-icon.magenta { color: var(--color-magenta); border-color: rgba(236, 72, 153, 0.2); }

.card-title {
  font-size: 1.6rem;
  font-weight: 600;
}

.card-description {
  font-size: 1rem;
  line-height: 1.6;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
}

.tag {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-card);
  color: var(--text-muted);
}

/* Open Source & Support Section */
.donation-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.01) 0%, rgba(139, 92, 246, 0.03) 100%);
  border: 1px solid rgba(139, 92, 246, 0.15);
  border-radius: 20px;
  padding: 4rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3), 0 0 30px rgba(139, 92, 246, 0.05);
}

.donation-details h3 {
  font-size: 2.2rem;
  margin-top: 1rem;
  margin-bottom: 1.5rem;
}

.donation-details p {
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.donation-widget {
  background: rgba(4, 4, 9, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  backdrop-filter: blur(10px);
}

.widget-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.widget-title span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-green);
  box-shadow: 0 0 8px var(--color-green);
}

.widget-meta {
  font-size: 0.9rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
}

.widget-progress-container {
  height: 6px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 999px;
  overflow: hidden;
}

.widget-progress-bar {
  height: 100%;
  width: 78%;
  background: linear-gradient(90deg, var(--color-purple), var(--color-cyan));
  border-radius: 999px;
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.5);
}

.support-options-stripe-only {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.support-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1rem;
  border-radius: 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
  width: 100%;
}

.support-btn.stripe {
  background: #635bff;
  color: #fff;
  box-shadow: 0 4px 15px rgba(99, 91, 255, 0.3);
}

.support-btn.stripe:hover {
  background: #7a73ff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(99, 91, 255, 0.5);
}

/* Open Source Projects Grid Showcase */
.projects-wrapper {
  margin-top: 6rem;
  border-top: 1px solid var(--border-card);
  padding-top: 6rem;
}

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

.project-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.project-logo-icon {
  color: var(--color-green);
  transition: var(--transition);
}

.project-card:hover .project-logo-icon {
  transform: rotate(-10deg) scale(1.1);
  color: #fff;
  filter: drop-shadow(0 0 5px var(--color-green));
}

.project-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-main);
}

.project-description {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.project-meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-top: auto;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(255,255,255,0.03);
  padding-top: 1.25rem;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.project-link {
  margin-left: auto;
  color: var(--color-cyan);
  font-weight: 600;
  font-family: var(--font-heading);
  transition: var(--transition);
}

.project-link:hover {
  color: #fff;
  text-shadow: 0 0 8px var(--color-cyan);
}

.project-tag-badge {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-green);
  background: rgba(16, 185, 129, 0.05);
  border: 1px solid rgba(16, 185, 129, 0.15);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* Tech Stack Section */
#tech {
  position: relative;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.tech-item {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 12px;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  transition: var(--transition);
  min-height: 140px;
  height: 100%;
}

.tech-item svg {
  width: 48px;
  height: 48px;
  filter: grayscale(0.5);
  transition: var(--transition);
}

.tech-item span {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
}

.tech-item:hover {
  border-color: var(--border-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

.tech-item:hover svg {
  filter: grayscale(0);
}

.tech-item:hover span {
  color: var(--text-main);
}

/* Contact Section */
.contact-wrapper {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 4rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.contact-info h3 {
  font-size: 2rem;
}

.contact-info p {
  font-size: 1.1rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-detail-item {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.detail-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-cyan);
}

.detail-content h4 {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--text-dark);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.detail-content p {
  color: var(--text-main);
  font-size: 1rem;
  font-weight: 400;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: var(--transition);
}

.social-icon:hover {
  color: #fff;
  border-color: var(--border-card-hover);
  transform: translateY(-3px);
  background: rgba(255,255,255,0.05);
}

.social-icon.github:hover { color: #fff; box-shadow: 0 0 10px rgba(255,255,255,0.2); }
.social-icon.linkedin:hover { color: #0077b5; box-shadow: 0 0 10px rgba(0, 119, 181, 0.2); }
.social-icon.email:hover { color: var(--color-magenta); box-shadow: 0 0 10px rgba(236, 72, 153, 0.2); }

/* Form Elements */
.contact-form-container {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 16px;
  padding: 3.5rem;
  backdrop-filter: blur(10px);
  position: relative;
}

.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-group label {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-main);
}

.form-group input, 
.form-group textarea {
  background: rgba(4, 4, 9, 0.4);
  border: 1px solid var(--border-card);
  border-radius: 8px;
  padding: 1rem;
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: var(--transition);
  width: 100%;
}

.form-group input:focus, 
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-cyan);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
  background: rgba(4, 4, 9, 0.6);
}

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

.contact-form button {
  grid-column: span 2;
  margin-top: 1rem;
}

/* Success/Error Alerts in Form */
.form-message {
  grid-column: span 2;
  padding: 1rem;
  border-radius: 8px;
  font-family: var(--font-heading);
  font-weight: 500;
  display: none;
  text-align: center;
}

.form-message.success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
}

.form-message.error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
}

/* Footer Section */
footer {
  border-top: 1px solid var(--border-card);
  padding: 40px 0;
  background: #020205;
}

.footer-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-logo span {
  color: var(--color-cyan);
}

.copyright {
  font-size: 0.9rem;
  color: var(--text-dark);
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-muted);
}

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

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .hero-content h1 {
    font-size: 3.2rem;
  }
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .services-grid .card-wide {
    grid-column: span 2;
  }
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .tech-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .donation-card {
    grid-template-columns: 1fr;
    gap: 3rem;
    padding: 3rem;
  }
}

@media (max-width: 768px) {
  header .container {
    height: 70px;
  }
  .menu-toggle {
    display: flex;
  }
  nav {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    height: 0;
    overflow: hidden;
    background: rgba(4, 4, 9, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    gap: 2rem;
    padding: 0;
    border-bottom: 1px solid transparent;
    transition: all 0.4s ease-in-out;
    z-index: 99;
  }
  nav.active {
    height: calc(100vh - 70px);
    padding: 40px 0;
    border-bottom-color: rgba(255, 255, 255, 0.08);
  }
  .hero-wrapper {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .hero-content {
    text-align: center;
  }
  .hero-founder-tag {
    justify-content: center;
    margin-bottom: 1.5rem;
  }
  .hero-content p {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-visual {
    order: -1;
    margin-bottom: 1rem;
  }
  .tech-grid-art {
    gap: 0.75rem; /* Smaller gaps on mobile */
    max-width: 320px;
  }
  .art-node {
    padding: 1rem 0.25rem;
    border-radius: 12px;
  }
  .art-node span {
    font-size: 0.78rem; /* Restored back to legible size */
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .services-grid .card-wide {
    grid-column: span 1;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .contact-form-container {
    padding: 2.5rem;
  }
  .tech-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-wrapper {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 2.5rem;
  }
  .hero-founder-tag {
    font-size: 0.95rem;
  }
  .tech-grid-art {
    gap: 0.5rem; /* Minimal gap on small viewports */
    max-width: 280px;
  }
  .art-node {
    padding: 0.85rem 0.25rem;
    border-radius: 10px;
  }
  .art-node span {
    font-size: 0.72rem; /* Larger, readable size */
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .donation-card {
    padding: 2rem 1.5rem;
    gap: 2rem;
  }
  .donation-details h3 {
    font-size: 1.8rem;
  }
  .donation-widget {
    padding: 1.5rem;
  }
  .contact-form {
    grid-template-columns: 1fr;
  }
  .form-group.full-width {
    grid-column: span 1;
  }
  .contact-form button {
    grid-column: span 1;
  }
  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}