/* ==========================================================================
   Design Tokens & System Variables
   ========================================================================== */
:root {
  --bg-main: #080c14;
  --bg-surface: #0e1524;
  --bg-card: #111a2d;
  --bg-card-hover: #15223c;
  
  --cyan-primary: #38bdf8;
  --cyan-hover: #0ea5e9;
  --green-accent: #10b981;
  --amber-accent: #f59e0b;
  --red-accent: #ef4444;

  --text-main: #f8fafc;
  --text-muted: #cbd5e1;
  --text-dim: #94a3b8;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(56, 189, 248, 0.25);
  --border-accent-bright: rgba(56, 189, 248, 0.6);

  --font-mono: 'JetBrains Mono', Consolas, monospace;
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --elevation-low: 0 2px 6px rgba(0, 0, 0, 0.35);
  --elevation-mid: 0 4px 12px rgba(0, 0, 0, 0.45);
  --elevation-high: 0 6px 12px rgba(0, 0, 0, 0.45);

  --transition-fast: 0.18s ease;
  --transition-smooth: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   Reset & Baseline
   ========================================================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.65;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Themed Browser Surfaces */
::selection {
  background: rgba(56, 189, 248, 0.25);
  color: #ffffff;
}

:focus-visible {
  outline: 2px solid var(--cyan-primary);
  outline-offset: 3px;
}

::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
  background: #1e293b;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #334155;
}

/* Container */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Typography Utilities */
.code-font {
  font-family: var(--font-mono);
}
.cyan-text {
  color: var(--cyan-primary);
}
.green-text {
  color: var(--green-accent);
}
.highlight-cyan {
  color: var(--cyan-primary);
  font-weight: 600;
}
.highlight {
  color: var(--cyan-primary);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  background: rgba(8, 12, 20, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand-terminal {
  display: flex;
  align-items: center;
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  gap: 0.35rem;
}
.brand-terminal .prompt-symbol {
  color: var(--green-accent);
  font-weight: 700;
}
.blinking-cursor {
  color: var(--cyan-primary);
  animation: blink 1s steps(2, start) infinite;
}
@keyframes blink {
  to { visibility: hidden; }
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}
.nav-link:hover {
  color: var(--cyan-primary);
}

.nav-cta-btn {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--cyan-primary);
  border: 1px solid var(--border-accent);
  background: rgba(56, 189, 248, 0.08);
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-sm);
  transition: var(--transition-smooth);
}
.nav-cta-btn:hover {
  background: var(--cyan-primary);
  color: var(--bg-main);
  box-shadow: var(--elevation-low);
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 28px;
  height: 22px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 101;
}
.mobile-toggle span {
  width: 100%;
  height: 2px;
  background: var(--cyan-primary);
  border-radius: 2px;
  transition: var(--transition-fast);
}

/* ==========================================================================
   Terminal Window Components
   ========================================================================== */
.terminal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--elevation-mid);
  overflow: hidden;
}

.terminal-bar {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.window-buttons {
  display: flex;
  gap: 0.45rem;
}
.btn-circle {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}
.btn-circle.red { background: #ef4444; }
.btn-circle.yellow { background: #f59e0b; }
.btn-circle.green { background: #10b981; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.system-status-pill {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--green-accent);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 0.45rem;
}
.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green-accent);
  display: inline-block;
}

.terminal-body {
  padding: 2.2rem 2.4rem;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  padding-top: 3.5rem;
  padding-bottom: 3.5rem;
}

.console-line {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
.cmd-prompt {
  color: var(--green-accent);
}
.cmd-command {
  color: var(--cyan-primary);
  font-weight: 600;
}
.type-cursor {
  color: var(--cyan-primary);
  font-weight: bold;
  animation: blink 0.9s steps(2, start) infinite;
}

.boot-logs {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: 2rem;
  padding-left: 0.5rem;
  border-left: 2px solid var(--border-subtle);
}
.log-item {
  margin-bottom: 0.25rem;
}
.log-item.dim {
  color: var(--text-dim);
}
.log-item.green {
  color: var(--green-accent);
}

.hero-main-content {
  border-top: 1px solid var(--border-subtle);
  padding-top: 2rem;
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: #ffffff;
  margin-bottom: 0.5rem;
}
.hero-title .alias {
  font-size: 2rem;
  font-weight: 500;
  color: var(--text-dim);
}

.hero-subtitle {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--cyan-primary);
  margin-bottom: 1.25rem;
}

.hero-desc {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 68ch;
  margin-bottom: 2rem;
  line-height: 1.7;
}
.hero-desc strong {
  color: var(--text-main);
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 2.25rem;
}
.tech-pill {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  color: var(--text-main);
  transition: border-color var(--transition-fast);
}
.tech-pill:hover {
  border-color: var(--border-accent);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.primary-btn, .secondary-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.primary-btn {
  background: var(--cyan-primary);
  color: var(--bg-main);
  border: 1px solid var(--cyan-primary);
  box-shadow: var(--elevation-low);
}
.primary-btn:hover {
  background: var(--cyan-hover);
  border-color: var(--cyan-hover);
  transform: translateY(-1px);
  box-shadow: var(--elevation-mid);
}

.secondary-btn {
  background: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
}
.secondary-btn:hover {
  border-color: var(--border-accent);
  color: var(--cyan-primary);
  transform: translateY(-1px);
}

/* ==========================================================================
   Section Headers (Impeccable: No kickers, clean hierarchy)
   ========================================================================== */
.section {
  padding: 5.5rem 1.5rem;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  color: #ffffff;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 65ch;
  margin-bottom: 2.25rem;
}

/* ==========================================================================
   Profile Section
   ========================================================================== */
.profile-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 2rem;
  align-items: start;
}

.avatar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--elevation-low);
}

.avatar-wrapper {
  width: 170px;
  height: 170px;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--border-accent);
  box-shadow: var(--elevation-mid);
}
.avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.avatar-name {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}
.avatar-sub {
  font-size: 0.88rem;
  color: var(--text-dim);
  margin-bottom: 1rem;
}
.profile-meta {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.pronoun-badge, .location-badge {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}

.bio-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2rem 2.2rem;
  box-shadow: var(--elevation-low);
}

.card-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}
.card-chip {
  color: var(--cyan-primary);
  font-weight: 600;
}
.card-status {
  color: var(--green-accent);
}

.bio-content p {
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 68ch;
}
.bio-content p strong {
  color: var(--text-main);
}
.bio-content .lead-text {
  font-size: 1.15rem;
  color: var(--text-main);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}
.stat-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 0.85rem;
  border-radius: var(--radius-sm);
}
.stat-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-bottom: 0.3rem;
  text-transform: uppercase;
}
.stat-value {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
}

/* ==========================================================================
   Degree Checkpoint Section
   ========================================================================== */
.checkpoint-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--elevation-low);
}
.terminal-bar.light {
  background: var(--bg-surface);
}
.chip-epoch {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: rgba(56, 189, 248, 0.1);
  color: var(--cyan-primary);
  border: 1px solid var(--border-accent);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
}

.checkpoint-body {
  padding: 2.2rem;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.progress-title {
  display: block;
  font-size: 0.95rem;
  color: var(--text-dim);
  margin-bottom: 0.25rem;
}

.loss-metric {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
}

/* GPU-Accelerated ScaleX Progress Bar */
.progress-track {
  width: 100%;
  height: 22px;
  background: var(--bg-surface);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  padding: 3px;
  position: relative;
  margin-bottom: 2.5rem;
  overflow: hidden;
}
.progress-fill {
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, #38bdf8, #10b981);
  border-radius: var(--radius-full);
  transform-origin: left;
  transform: scaleX(0.125);
  transition: transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}
.progress-tooltip {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--bg-main);
  white-space: nowrap;
}

.milestones-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.milestone-item {
  border-top: 2px solid var(--border-subtle);
  padding-top: 1rem;
  position: relative;
}
.milestone-item.active {
  border-top-color: var(--cyan-primary);
}
.milestone-dot {
  position: absolute;
  top: -6px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-dim);
}
.milestone-item.active .milestone-dot {
  background: var(--cyan-primary);
}
.milestone-name {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}
.milestone-desc {
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* ==========================================================================
   Core Modules Section
   ========================================================================== */
.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.module-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--elevation-low);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}
.module-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-accent);
}

.module-header {
  margin-bottom: 0.85rem;
}
.module-index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--cyan-primary);
  letter-spacing: 1px;
}
.module-header h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-top: 0.2rem;
}

.module-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.module-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}
.module-tags span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 0.25rem 0.55rem;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
}

/* ==========================================================================
   Tech Stack Section
   ========================================================================== */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.tech-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--elevation-low);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}
.tech-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-2px);
  background: var(--bg-card-hover);
}

.badge-wrapper {
  margin-bottom: 1.25rem;
}
.shield-badge {
  display: inline-block;
  height: 28px;
  border-radius: 4px;
}

.tech-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}
.tech-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}
.tech-category {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--cyan-primary);
  background: rgba(56, 189, 248, 0.08);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  align-self: flex-start;
}

/* ==========================================================================
   Current State Section
   ========================================================================== */
.state-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.state-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--elevation-low);
  transition: border-color var(--transition-fast);
}
.state-card:hover {
  border-color: var(--border-accent);
}

.state-header {
  margin-bottom: 1rem;
}
.state-header h3 {
  font-size: 1.2rem;
  margin-top: 0.4rem;
}

.state-status {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.18rem 0.55rem;
  border-radius: var(--radius-sm);
  display: inline-block;
}
.state-status.running {
  background: rgba(16, 185, 129, 0.12);
  color: var(--green-accent);
  border: 1px solid rgba(16, 185, 129, 0.25);
}
.state-status.learning {
  background: rgba(56, 189, 248, 0.12);
  color: var(--cyan-primary);
  border: 1px solid rgba(56, 189, 248, 0.25);
}
.state-status.active {
  background: rgba(245, 158, 11, 0.12);
  color: var(--amber-accent);
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.state-main {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}
.state-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Ping Me / Contact Section (Impeccable: Flattened, no nested cards)
   ========================================================================== */
.contact-channels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.channel-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.6rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--text-main);
  box-shadow: var(--elevation-low);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}
.channel-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-accent);
}
.channel-card.linkedin:hover {
  border-color: #0077b5;
}
.channel-card.instagram:hover {
  border-color: #e4405f;
}
.channel-card.facebook:hover {
  border-color: #1877f2;
}

.channel-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  flex-shrink: 0;
}
.channel-card.linkedin .channel-icon { color: #38bdf8; }
.channel-card.instagram .channel-icon { color: #f43f5e; }
.channel-card.facebook .channel-icon { color: #3b82f6; }

.channel-details h3 {
  font-size: 1.15rem;
  margin-bottom: 0.25rem;
}
.channel-details p {
  font-size: 0.88rem;
  color: var(--text-dim);
  margin-bottom: 0.35rem;
}
.badge-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--cyan-primary);
}

.quick-ping-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1.5rem 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--elevation-low);
}
.quick-ping-label {
  font-size: 0.95rem;
  color: var(--text-muted);
}
.copy-btn {
  padding: 0.65rem 1.4rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 2.5rem 0;
  background: var(--bg-surface);
}
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.footer-left p {
  font-size: 0.85rem;
  color: var(--text-dim);
}
.footer-left .code-font {
  color: var(--cyan-primary);
  margin-bottom: 0.25rem;
}
.footer-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.footer-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
}
.back-to-top {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--cyan-primary);
  text-decoration: none;
  border: 1px solid var(--border-subtle);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}
.back-to-top:hover {
  border-color: var(--border-accent);
  background: rgba(56, 189, 248, 0.08);
}

/* ==========================================================================
   Toast Notification
   ========================================================================== */
.toast-notification {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-accent-bright);
  box-shadow: var(--elevation-high);
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: all 0.25s ease;
  z-index: 1000;
}
.toast-notification.show {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Accessibility: Reduced Motion Preference
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 900px) {
  .profile-layout {
    grid-template-columns: 1fr;
  }
  .avatar-card {
    max-width: 360px;
    margin: 0 auto;
    width: 100%;
  }
  .hero-title {
    font-size: 2.6rem;
  }
  .milestones-row {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: flex;
  }
  .nav-menu {
    position: fixed;
    top: 68px;
    left: 0;
    width: 100%;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle);
    flex-direction: column;
    padding: 2rem 1.5rem;
    gap: 1.25rem;
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    box-shadow: var(--elevation-high);
  }
  .nav-menu.open {
    transform: translateY(0);
  }
  .terminal-body {
    padding: 1.5rem;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-title .alias {
    display: block;
    font-size: 1.4rem;
  }
  .section {
    padding: 3.5rem 1rem;
  }
}