/* ── RESET & DESIGN TOKENS ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #07090e;
  --bg-alt: #0a0e17;
  --surface: #0e1320;
  --surface-card: rgba(15, 23, 42, 0.7);
  --surface-hover: rgba(30, 41, 59, 0.85);
  --border: rgba(255, 255, 255, 0.08);
  --border-subtle: rgba(255, 255, 255, 0.04);
  --border-accent: rgba(79, 140, 255, 0.4);
  
  --accent: #4f8cff;
  --accent-cyan: #38bdf8;
  --accent-purple: #a855f7;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Space Mono', Consolas, monospace;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 35px rgba(79, 140, 255, 0.18);
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  background-color: var(--bg);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: rgba(79, 140, 255, 0.3);
  color: #ffffff;
}

/* ── BACKGROUND CANVAS & AMBIENT GLOWS ── */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.65;
}

.ambient-glow {
  position: fixed;
  pointer-events: none;
  z-index: 0;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.15;
}

.glow-1 {
  top: -100px;
  left: 20%;
  width: 600px;
  height: 500px;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  animation: pulseGlow 12s ease-in-out infinite alternate;
}

.glow-2 {
  top: 45%;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%);
  animation: pulseGlow 15s ease-in-out infinite alternate-reverse;
}

@keyframes pulseGlow {
  0% { transform: scale(1) translate(0, 0); opacity: 0.12; }
  50% { transform: scale(1.15) translate(30px, 20px); opacity: 0.22; }
  100% { transform: scale(0.95) translate(-20px, 40px); opacity: 0.14; }
}

/* ── LAYOUT CONTAINER ── */
.app-container {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── STICKY GLASS NAVBAR ── */
.navbar {
  position: sticky;
  top: 1rem;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  margin: 1rem 0 2rem;
  background: rgba(14, 19, 32, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(79,140,255,0.2), rgba(56,189,248,0.2));
  border: 1px solid rgba(79,140,255,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
}

.brand-text span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color 0.2s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--text-main);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Language Switcher Button Segment */
.lang-switcher {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 2px;
  gap: 2px;
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.25rem 0.55rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.2s ease;
}

.lang-btn:hover {
  color: var(--text-main);
}

.lang-btn.active {
  background: rgba(79, 140, 255, 0.2);
  color: #93c5fd;
  box-shadow: 0 0 10px rgba(79, 140, 255, 0.3);
}

.nav-github-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: all 0.2s ease;
}

.nav-github-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

/* ── HERO SECTION ── */
.hero {
  padding: 4rem 0 3.5rem;
  position: relative;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #6ee7b7;
  letter-spacing: 0.03em;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeInDown 0.6s 0.1s ease forwards;
}

.status-dot {
  width: 7px;
  height: 7px;
  background: var(--accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.35); opacity: 0.6; }
}

.hero-title {
  font-size: clamp(2.8rem, 8vw, 5.2rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 1.25rem;
  opacity: 0;
  animation: fadeInUp 0.7s 0.2s ease forwards;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #ffffff 30%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-title .outline-text {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--accent);
  text-shadow: 0 0 25px rgba(79, 140, 255, 0.3);
}

.hero-bio {
  font-size: clamp(1.05rem, 2.5vw, 1.25rem);
  color: var(--text-muted);
  max-width: 680px;
  line-height: 1.6;
  margin-bottom: 2rem;
  font-weight: 400;
  opacity: 0;
  animation: fadeInUp 0.7s 0.3s ease forwards;
}

.hero-bio strong {
  color: var(--text-main);
  font-weight: 600;
}

/* ── CTA BUTTONS ── */
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.75rem;
  opacity: 0;
  animation: fadeInUp 0.7s 0.4s ease forwards;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, #4f8cff, #3b82f6);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #60a5fa, #2563eb);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.5);
}

.btn-secondary {
  background: var(--surface-card);
  border-color: var(--border);
  color: var(--text-main);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--surface-hover);
  border-color: var(--border-accent);
  transform: translateY(-2px);
  color: #ffffff;
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text-muted);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
  border-color: rgba(255, 255, 255, 0.2);
}

/* ── TECH STACK TOOLBAR ── */
.stack-bar {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  opacity: 0;
  animation: fadeInUp 0.7s 0.5s ease forwards;
}

.stack-bar-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.stack-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.stack-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.8rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  transition: all 0.25s ease;
  cursor: default;
}

.stack-chip svg {
  width: 16px;
  height: 16px;
  transition: transform 0.25s ease, filter 0.25s ease;
}

.stack-chip:hover {
  background: rgba(79, 140, 255, 0.08);
  border-color: var(--border-accent);
  color: var(--text-main);
  transform: translateY(-2px);
}

.stack-chip:hover svg {
  transform: scale(1.15);
  filter: drop-shadow(0 0 6px rgba(79,140,255,0.6));
}

/* ── SECTION COMMONS ── */
.section {
  padding: 4.5rem 0 1rem;
}

.section-header {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 2rem;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-tag::before {
  content: '//';
  color: var(--text-dim);
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-main);
}

.section-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 600px;
}

/* ── FILTER TABS ── */
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-btn:hover {
  background: rgba(255, 255, 255, 0.07);
  color: var(--text-main);
}

.filter-btn.active {
  background: rgba(79, 140, 255, 0.15);
  border-color: var(--accent);
  color: #93c5fd;
  box-shadow: 0 0 15px rgba(79, 140, 255, 0.2);
}

/* ── BENTO PROJECTS GRID & SPOTLIGHT CARDS ── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 1.5rem;
}

.project-card {
  position: relative;
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  backdrop-filter: blur(12px);
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), 
              border-color 0.3s ease, 
              box-shadow 0.3s ease;
}

/* Spotlight gradient border effect */
.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: radial-gradient(
    400px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(79, 140, 255, 0.4),
    transparent 60%
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: rgba(79, 140, 255, 0.3);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.project-card:hover::before {
  opacity: 1;
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.card-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.1em;
}

.card-badges {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.badge-pill {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

.badge-platform {
  background: rgba(56, 189, 248, 0.1);
  border-color: rgba(56, 189, 248, 0.25);
  color: var(--accent-cyan);
}

.badge-stars {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--accent-amber);
  background: rgba(245, 158, 11, 0.08);
  border-color: rgba(245, 158, 11, 0.2);
}

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.card-title .arrow-icon {
  color: var(--text-dim);
  transition: transform 0.25s ease, color 0.25s ease;
}

.project-card:hover .card-title .arrow-icon {
  transform: translate(3px, -3px);
  color: var(--accent);
}

.card-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
}

.card-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin: 0.25rem 0;
}

.card-feature-item {
  font-size: 0.78rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.card-feature-item::before {
  content: '▹';
  color: var(--accent-cyan);
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-subtle);
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: all 0.2s ease;
}

.project-card:hover .tag {
  border-color: rgba(79, 140, 255, 0.25);
  color: #bfdbfe;
}

/* ── SKILLS & ARCHITECTURE MATRIX ── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.skill-card {
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  backdrop-filter: blur(12px);
  transition: all 0.3s ease;
}

.skill-card:hover {
  border-color: rgba(79, 140, 255, 0.3);
  transform: translateY(-2px);
}

.skill-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.skill-icon-box {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: rgba(79, 140, 255, 0.1);
  border: 1px solid rgba(79, 140, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.skill-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}

.skill-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.skill-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  padding-bottom: 0.5rem;
  border-bottom: 1px dashed var(--border-subtle);
}

.skill-item-name {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  color: var(--text-main);
}

.skill-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent-cyan);
  background: rgba(56, 189, 248, 0.08);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
}

/* ── INTERACTIVE TERMINAL WIDGET ── */
.terminal-wrapper {
  background: #090d16;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md), 0 0 40px rgba(0,0,0,0.6);
  overflow: hidden;
  backdrop-filter: blur(16px);
}

.terminal-header {
  background: #0f1422;
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.terminal-dots {
  display: flex;
  gap: 0.45rem;
}

.t-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.t-dot-red { background: #ef4444; }
.t-dot-yellow { background: #f59e0b; }
.t-dot-green { background: #10b981; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.terminal-body {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.7;
  min-height: 260px;
  max-height: 400px;
  overflow-y: auto;
  color: #cbd5e1;
}

.terminal-output {
  margin-bottom: 1rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.t-accent { color: var(--accent); }
.t-cyan { color: var(--accent-cyan); }
.t-emerald { color: var(--accent-emerald); }
.t-dim { color: var(--text-dim); }
.t-yellow { color: var(--accent-amber); }

.terminal-prompt-line {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.terminal-prompt-symbol {
  color: var(--accent-cyan);
  font-weight: 700;
}

.terminal-input {
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #ffffff;
  flex: 1;
  width: 100%;
}

.terminal-quick-actions {
  padding: 0.75rem 1.25rem;
  background: rgba(15, 20, 34, 0.6);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.terminal-quick-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  margin-right: 0.25rem;
}

.t-quick-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.t-quick-btn:hover {
  background: rgba(79, 140, 255, 0.15);
  border-color: var(--accent);
  color: #ffffff;
}

/* ── DONATION & CRYPTO SECTION ── */
.donate-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.crypto-card {
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  backdrop-filter: blur(12px);
  transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.crypto-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.crypto-card.usdt:hover {
  border-color: rgba(38, 161, 123, 0.4);
  box-shadow: 0 8px 30px rgba(38, 161, 123, 0.15);
}

.crypto-card.trx:hover {
  border-color: rgba(235, 0, 41, 0.4);
  box-shadow: 0 8px 30px rgba(235, 0, 41, 0.15);
}

.crypto-card.btc:hover {
  border-color: rgba(247, 147, 26, 0.4);
  box-shadow: 0 8px 30px rgba(247, 147, 26, 0.15);
}

.crypto-card.ltc:hover {
  border-color: rgba(52, 93, 157, 0.4);
  box-shadow: 0 8px 30px rgba(52, 93, 157, 0.15);
}

.crypto-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.crypto-info {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.crypto-icon {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
}

.crypto-icon.usdt { background: rgba(38, 161, 123, 0.15); color: #26a17b; border: 1px solid rgba(38, 161, 123, 0.3); }
.crypto-icon.trx  { background: rgba(235, 0, 41, 0.15); color: #ef4444; border: 1px solid rgba(235, 0, 41, 0.3); }
.crypto-icon.btc  { background: rgba(247, 147, 26, 0.15); color: #f7931a; border: 1px solid rgba(247, 147, 26, 0.3); }
.crypto-icon.ltc  { background: rgba(52, 93, 157, 0.15); color: #38bdf8; border: 1px solid rgba(52, 93, 157, 0.3); }

.crypto-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-main);
}

.crypto-network {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
}

.crypto-address-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.65rem;
}

.crypto-address-text {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  word-break: break-all;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.crypto-copy-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  color: var(--text-main);
  padding: 0.35rem 0.65rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.crypto-copy-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

/* ── CONTACT & FOOTER ── */
.contact-card {
  background: linear-gradient(135deg, rgba(14, 19, 32, 0.8), rgba(20, 30, 50, 0.6));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin-top: 4rem;
}

.contact-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 30%;
  width: 40%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.contact-title {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.contact-desc {
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 2rem;
  font-size: 0.95rem;
}

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

footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0 3.5rem;
  margin-top: 5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-time {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.footer-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.back-to-top {
  background: var(--surface-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.back-to-top:hover {
  background: var(--surface-hover);
  color: #ffffff;
  border-color: var(--accent);
  transform: translateY(-2px);
}

/* ── TOAST NOTIFICATION ── */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid var(--accent);
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5), 0 0 20px rgba(79,140,255,0.25);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  backdrop-filter: blur(12px);
  transform: translateY(20px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  pointer-events: auto;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* ── KEYFRAME ANIMATIONS ── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── RESPONSIVENESS ── */
@media (max-width: 768px) {
  .navbar {
    margin: 0.5rem 0 1.5rem;
  }
  .nav-links {
    display: none;
  }
  .hero {
    padding: 2.5rem 0 2rem;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .skills-grid {
    grid-template-columns: 1fr;
  }
  .donate-grid {
    grid-template-columns: 1fr;
  }
  .contact-card {
    padding: 2rem 1.25rem;
  }
  footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }
}