:root {
  --bg: #0b0d10;
  --panel: #14181d;
  --panel-strong: #1b2026;
  --line: #252b33;
  --text: #eef2f6;
  --muted: #95a0ad;
  --cyan: #7bb8ff;
  --green: #79d0a5;
  --gold: #d8b06b;
  --danger: #e28b8b;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
  --cmd-shell: #0a0c0f;
  --cmd-chrome: #15191e;
  --cmd-line: #252b33;
  --cmd-text: #eef2f6;
  --cmd-muted: #98a3af;
  --bevel-light: transparent;
  --bevel-mid: transparent;
  --bevel-dark: transparent;
  --bevel-deep: transparent;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
}

body {
  background:
    radial-gradient(circle at 50% -10%, rgba(123, 184, 255, 0.08), transparent 30%),
    linear-gradient(180deg, #0b0d10 0%, #11151a 100%);
  color: var(--text);
  font-family: "Segoe UI Variable", "Segoe UI", system-ui, sans-serif;
  overflow: hidden;
}

button,
input {
  font: inherit;
}

.noise {
  position: fixed;
  inset: 0;
  opacity: 0.02;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.04) 1px, transparent 1px);
  background-size: 4px 4px, 4px 4px;
  pointer-events: none;
}

.app-shell {
  display: grid;
  grid-template-columns: minmax(360px, 46%) 1fr;
  height: 100vh;
  overflow: hidden;
}

.terminal-pane,
.visual-pane {
  position: relative;
  min-height: 0;
  height: 100vh;
  overflow: hidden;
}

.terminal-pane {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.5rem;
  background: transparent;
  border-right: 1px solid var(--line);
}

.visual-pane {
  display: grid;
  grid-template-rows: auto 1fr;
  padding: 1.5rem;
  gap: 1rem;
}

.cmd-window,
.pane-head,
.intro-card,
.command-reference,
.terminal-window,
.visual-head,
.canvas-wrap {
  border: 1px solid var(--line);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow: var(--shadow);
}

.cmd-window,
.pane-head,
.intro-card,
.command-reference,
.visual-head {
  background: var(--panel);
}

.cmd-window {
  display: grid;
  grid-template-rows: auto 1fr;
  flex: 1 1 auto;
  min-height: 0;
  height: 100%;
  overflow: hidden;
  border-radius: 1rem;
  background: var(--panel);
}

.cmd-titlebar {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 1rem;
  min-height: 2.2rem;
  padding: 0 0.55rem 0 0.3rem;
  background: var(--cmd-chrome);
  color: var(--text);
  font-family: "Segoe UI Variable", "Segoe UI", system-ui, sans-serif;
  font-size: 0.84rem;
  font-weight: 600;
  border-bottom: 1px solid var(--line);
}

.cmd-title {
  display: flex;
  align-items: center;
}

.cmd-title {
  gap: 0.45rem;
  min-width: 0;
}

.cmd-title span:last-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cmd-icon {
  display: inline-grid;
  place-items: center;
  width: 1.15rem;
  height: 1.15rem;
  border: 1px solid #313843;
  background: #0d1014;
  color: #fff;
  font-size: 0.48rem;
  line-height: 1;
  border-radius: 999px;
}

.pane-head,
.visual-head {
  padding: 1rem 1.1rem;
}

.eyebrow {
  margin: 0 0 0.55rem;
  font-size: 0.76rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(1.8rem, 4vw, 3rem);
  letter-spacing: -0.04em;
}

h2 {
  margin-bottom: 0.6rem;
  font-size: clamp(1.6rem, 3vw, 2.7rem);
  letter-spacing: -0.04em;
}

.intro-card {
  padding: 1rem 1.1rem;
}

.intro-card p:last-child,
.visual-head p:last-child,
.muted {
  color: var(--muted);
}

.intro-card strong {
  color: var(--cyan);
}

.command-reference {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  padding: 0.9rem;
}

.chip {
  padding: 0.5rem 0.8rem;
  border: 1px solid #2b3139;
  background: var(--panel-strong);
  color: var(--text);
  cursor: pointer;
  transition: transform 120ms ease, background-color 120ms ease, border-color 120ms ease;
  border-radius: 999px;
}

.chip:hover,
.chip:focus-visible {
  transform: translateY(-1px);
  background: #20262d;
  color: #ffffff;
  border-color: #3b4652;
}

.terminal-window {
  min-height: 0;
  height: 100%;
  display: grid;
  grid-template-rows: auto 1fr auto;
  background: var(--cmd-shell);
  color: var(--cmd-text);
  border: 0;
  box-shadow: none;
  overflow: hidden;
}

.terminal-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 0.8rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  color: var(--cmd-muted);
  font-size: 0.8rem;
}

.terminal-output {
  overflow: auto;
  min-height: 0;
  padding: 0.9rem 1rem;
  display: block;
  font-size: 0.95rem;
  line-height: 1.35;
}

.entry {
  display: block;
  margin-bottom: 0.8rem;
}

.entry-command {
  color: var(--cmd-text);
  word-break: break-word;
}

.entry-response {
  color: var(--cmd-text);
  white-space: pre-line;
}

.entry-response.system {
  color: var(--cmd-text);
}

.entry-response.error {
  color: #ff9d9d;
}

.terminal-form {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.3rem;
  align-items: center;
  padding: 0 1rem 1rem;
}

.prompt {
  color: var(--cmd-text);
}

#command-input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--cmd-text);
  caret-color: var(--cmd-text);
}

#command-input::placeholder {
  color: rgba(243, 243, 243, 0.34);
}

.canvas-wrap {
  position: relative;
  overflow: hidden;
  background: #101419;
  border-radius: 1.1rem;
}

#scene {
  display: block;
  width: 100%;
  height: 100%;
}

.view-layer {
  position: absolute;
  inset: 0;
  display: grid;
  pointer-events: none;
}

.view-screen {
  grid-area: 1 / 1;
  display: none;
  padding: 1.2rem;
  pointer-events: none;
  min-height: 0;
}

.view-screen.active {
  display: block;
}

.view-home {
  display: none;
}

.view-home.active {
  display: block;
  pointer-events: none;
}

.home-status {
  pointer-events: none;
  display: inline-flex;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--line);
  background: #171b21;
  color: var(--cyan);
  letter-spacing: 0.14em;
  font-size: 0.74rem;
  opacity: 1;
  transition: opacity 220ms ease;
  border-radius: 999px;
}

.home-status.hidden {
  opacity: 0;
}

.home-start-panel {
  pointer-events: auto;
  position: absolute;
  left: 1.2rem;
  bottom: 1.2rem;
  display: grid;
  gap: 0.55rem;
  width: min(26rem, calc(100% - 2.4rem));
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  background: #14181d;
  backdrop-filter: none;
  box-shadow: var(--shadow);
  border-radius: 1.2rem;
}

.home-start-label {
  color: var(--cyan);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.home-start-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.7rem;
}

.home-start-row input,
.home-start-row button {
  min-height: 2.65rem;
  border: 1px solid var(--line);
  background: #0f1318;
  color: var(--text);
  font: inherit;
  padding: 0 0.9rem;
  border-radius: 999px;
}

.home-start-row input:focus,
.home-start-row button:focus-visible {
  outline: 0;
  border-color: rgba(107, 231, 255, 0.5);
}

.home-start-row button {
  cursor: pointer;
  background: #1c2229;
}

.view-screen.active .project-grid,
.view-screen.active .project-detail,
.view-screen.active .journey-tree,
.view-screen.active .contact-layout,
.view-screen.active .software-layout,
.view-screen.active .software-stage,
.software-panel,
.software-category,
.view-toolbar,
.resume-link,
.contact-form,
.back-button {
  pointer-events: auto;
}

.project-detail,
.journey-tree,
.resume-card,
.contact-form,
.software-stage {
  border: 1px solid var(--line);
  background: #14181d;
  backdrop-filter: none;
  box-shadow: var(--shadow);
  border-radius: 1.4rem;
}

.hero-kicker {
  margin-bottom: 0.55rem;
  color: var(--cyan);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.74rem;
}

.view-toolbar h3,
.resume-card h4 {
  margin: 0 0 0.7rem;
  font-size: 1.5rem;
}

.view-toolbar {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 1rem;
}

.back-button,
.resume-link,
.contact-form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.5rem;
  padding: 0 0.9rem;
  border: 1px solid #303843;
  background: #1c2229;
  color: var(--text);
  cursor: pointer;
  text-decoration: none;
  border-radius: 999px;
}

.back-button:active,
.resume-link:active,
.contact-form button:active {
  transform: translateY(1px);
}

.projects-layout,
.contact-layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 1rem;
  min-height: calc(100% - 4rem);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
  max-height: calc(100vh - 18rem);
  overflow: auto;
  padding-right: 0.2rem;
}

.project-card {
  text-align: left;
  font: inherit;
  color: var(--text);
  padding: 1rem;
  border: 1px solid var(--line);
  background: #171b21;
  cursor: pointer;
  border-radius: 1.15rem;
}

.project-card h4,
.journey-node h4 {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
}

.project-card p,
.project-detail p,
.journey-node p,
.resume-card p,
.contact-form label {
  color: var(--muted);
}

.project-card .tag-row,
.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.9rem;
}

.project-card .tag-row span,
.detail-tags span {
  padding: 0.26rem 0.5rem;
  border: 1px solid rgba(107, 231, 255, 0.16);
  color: var(--cyan);
  font-size: 0.78rem;
}

.project-detail,
.journey-tree,
.software-stage,
.resume-card,
.contact-form {
  padding: 1rem;
}

.project-detail,
.journey-tree {
  max-height: calc(100vh - 18rem);
  overflow: auto;
}

.detail-placeholder {
  margin: 0;
}

.project-detail ul {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
}

.project-detail li {
  margin-bottom: 0.4rem;
  color: var(--text);
}

.journey-tree {
  display: grid;
  gap: 1rem;
  position: relative;
  scroll-behavior: smooth;
  scroll-snap-type: y proximity;
}

.journey-tree::before {
  content: "";
  position: absolute;
  left: 1.05rem;
  top: 1rem;
  bottom: 1rem;
  width: 2px;
  background: linear-gradient(180deg, rgba(107, 231, 255, 0.45), rgba(255, 210, 110, 0.22));
}

.journey-node {
  position: relative;
  margin-left: 1.9rem;
  padding: 1rem 1.05rem 1.05rem;
  border: 1px solid var(--line);
  border-left: 1px solid rgba(123, 184, 255, calc(0.22 + var(--journey-progress) * 0.28));
  background:
    linear-gradient(
      135deg,
      rgba(123, 184, 255, calc(0.08 + var(--journey-progress) * 0.05)),
      rgba(216, 176, 107, calc(0.04 + var(--journey-progress) * 0.06))
    ),
    #171b21;
  box-shadow: 0 18px 40px rgba(5, 10, 18, 0.18);
  opacity: 0;
  transform: translateY(24px) scale(0.97);
  transition:
    opacity 420ms ease,
    transform 420ms ease,
    border-color 260ms ease,
    box-shadow 260ms ease,
    background 260ms ease;
  transition-delay: calc(var(--journey-order) * 70ms);
  scroll-snap-align: start;
}

.journey-node::before {
  content: "";
  position: absolute;
  left: -1.35rem;
  top: 1rem;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--gold));
  box-shadow: 0 0 0 6px rgba(107, 231, 255, 0.08);
  transition: transform 260ms ease, box-shadow 260ms ease;
}

.journey-node::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 0.1rem;
  background: linear-gradient(90deg, rgba(107, 231, 255, 0.08), transparent 30%, transparent 70%, rgba(255, 210, 110, 0.08));
  opacity: 0;
  pointer-events: none;
  transition: opacity 240ms ease;
}

.journey-node.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.journey-node.is-active {
  border-color: rgba(255, 255, 255, 0.18);
  border-left-color: rgba(255, 210, 110, 0.8);
  box-shadow: 0 26px 60px rgba(5, 10, 18, 0.24);
  transform: translateX(8px) scale(1.02);
}

.journey-node.is-active::before {
  transform: scale(1.18);
  box-shadow: 0 0 0 8px rgba(255, 210, 110, 0.14);
}

.journey-node.is-active::after {
  opacity: 1;
}

.journey-node .hero-kicker,
.journey-node h4,
.journey-node p {
  position: relative;
  z-index: 1;
}

.software-screen {
  padding-bottom: 1.4rem;
}

.software-stage {
  position: relative;
  min-height: calc(100% - 4rem);
  overflow: hidden;
}

.software-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 1rem;
  min-height: calc(100% - 4rem);
}

.software-panel {
  border: 1px solid var(--line);
  background: #14181d;
  backdrop-filter: none;
  box-shadow: var(--shadow);
  padding: 1rem;
  overflow: auto;
  border-radius: 1.35rem;
}

.software-category {
  width: 100%;
  margin-bottom: 0.8rem;
  padding: 0.9rem 1rem;
  text-align: left;
  border: 1px solid var(--line);
  background: #171b21;
  color: var(--text);
  cursor: pointer;
  border-radius: 1rem;
}

.software-category.active {
  background: #1d2530;
  border-color: #36506e;
}

.software-category strong,
.software-stage-head strong {
  display: block;
  margin-bottom: 0.28rem;
  color: var(--text);
}

.software-category span,
.software-stage-head span {
  font-size: 0.78rem;
  color: var(--muted);
}

.software-stage-head {
  position: absolute;
  left: 1rem;
  top: 1rem;
  z-index: 2;
  max-width: 18rem;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--line);
  background: #171b21;
  backdrop-filter: none;
  border-radius: 1rem;
}

.software-stage-head:empty {
  display: none;
}

.software-badges {
  position: absolute;
  inset: 0;
  padding: 1.2rem;
}

.skill-badge {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.28rem;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at 30% 28%, rgba(255, 255, 255, 0.14), rgba(20, 24, 29, 0.96) 70%),
    #14181d;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
  color: var(--text);
  transform: translate(-50%, -50%);
  text-align: center;
  overflow: hidden;
  z-index: 2;
  will-change: left, top;
}

.skill-badge img {
  width: 28%;
  min-width: 18px;
  max-width: 28px;
  aspect-ratio: 1;
  border-radius: 0.7rem;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.18);
}

.skill-badge span {
  max-width: 78%;
  font-size: 0.66rem;
  line-height: 1.2;
  color: rgba(255, 255, 255, 0.92);
}

.skill-badge small {
  font-size: 0.62rem;
  color: rgba(255, 255, 255, 0.62);
}

.contact-form {
  display: grid;
  gap: 0.9rem;
}

.contact-form label {
  display: grid;
  gap: 0.45rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: #0f1318;
  color: var(--text);
  padding: 0.75rem 0.8rem;
  border-radius: 1rem;
}

.contact-form button:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.contact-status {
  margin: 0;
  padding: 0.65rem 0.85rem;
  border-radius: 0.85rem;
  font-size: 0.9rem;
}

.contact-status.success {
  border: 1px solid rgba(121, 208, 165, 0.25);
  background: rgba(121, 208, 165, 0.08);
  color: var(--green);
}

.contact-status.error {
  border: 1px solid rgba(226, 139, 139, 0.25);
  background: rgba(226, 139, 139, 0.08);
  color: var(--danger);
}

.contact-form input:invalid:not(:placeholder-shown),
.contact-form textarea:invalid:not(:placeholder-shown) {
  border-color: rgba(226, 139, 139, 0.45);
}


.project-grid::-webkit-scrollbar,
.project-detail::-webkit-scrollbar,
.journey-tree::-webkit-scrollbar,
.terminal-output::-webkit-scrollbar {
  width: 0.7rem;
}

.project-grid::-webkit-scrollbar-thumb,
.project-detail::-webkit-scrollbar-thumb,
.journey-tree::-webkit-scrollbar-thumb,
.terminal-output::-webkit-scrollbar-thumb {
  background: rgba(107, 231, 255, 0.25);
  border: 2px solid transparent;
  background-clip: padding-box;
}

.social-badge {
  position: absolute;
  right: 0.9rem;
  z-index: 3;
  display: grid;
  place-items: center;
  width: 4.35rem;
  height: 4.35rem;
  border-radius: 50%;
  overflow: hidden;
  border: 1px solid transparent;
  background-color: transparent;
  background-position: center;
  background-repeat: no-repeat;
  background-size: 58%;
  box-shadow: none;
  transition: transform 220ms ease, filter 220ms ease, border-color 220ms ease, background-color 220ms ease;
}

.social-github {
  top: calc(50% - 4.8rem);
}

.social-linkedin {
  top: calc(50% + 0.6rem);
}

.social-badge:hover,
.social-badge:focus-visible {
  transform: scale(1.05);
  filter: brightness(1.08);
  border-color: rgba(255, 255, 255, 0.92);
  background-color: rgba(255, 255, 255, 0.04);
}

strong {
  color: var(--cyan);
}

@media (max-width: 980px) {
  body {
    overflow: auto;
  }

  .app-shell {
    grid-template-columns: 1fr;
  }

  .terminal-pane,
  .visual-pane {
    min-height: auto;
  }

  .visual-pane {
    min-height: 70vh;
  }

  .projects-layout,
  .contact-layout,
  .software-layout {
    grid-template-columns: 1fr;
  }

  .project-grid {
    grid-template-columns: 1fr;
  }

  .software-stage {
    min-height: 38rem;
  }

  .social-badge {
    width: 3.8rem;
    height: 3.8rem;
    right: 0.7rem;
  }

  .home-start-row {
    grid-template-columns: 1fr;
  }

  .social-linkedin {
    top: calc(50% + 0.45rem);
  }

  .social-github {
    top: calc(50% - 4.15rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .chip {
    transition: none;
  }
}