:root {
  --bg: #05060e;
  --bg-soft: #0b0e1d;
  --ink: #eef1ff;
  --ink-dim: #9aa3c7;
  --accent: #6ee7ff;
  --accent-2: #a78bfa;
  --line: rgba(158, 170, 220, 0.18);
  --card: rgba(15, 19, 40, 0.72);
  --radius: 14px;
  --font: "Avenir Next", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "SFMono-Regular", "Cascadia Code", Consolas, Menlo, monospace;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

button, input, textarea { font: inherit; }
button:disabled { cursor: wait; opacity: 0.58; }
.hidden { display: none !important; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.muted { color: var(--ink-dim); }
.error { color: #ff9baa !important; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

::selection { background: rgba(110, 231, 255, 0.28); }
.skip-link {
  position: fixed; z-index: 100; top: 10px; left: 10px; padding: 8px 12px;
  background: var(--ink); color: var(--bg); border-radius: 7px; transform: translateY(-150%);
}
.skip-link:focus { transform: none; }
.honeypot { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

/* ---- fixed 3D canvas ---- */
#scene {
  position: fixed;
  inset: 0;
  z-index: 0;
  display: block;
}

/* ---- top navigation ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  background: linear-gradient(to bottom, rgba(5, 6, 14, 0.85), transparent);
}

.nav .brand {
  font-weight: 700;
  letter-spacing: 0.22em;
  font-size: 13px;
  text-transform: uppercase;
  color: var(--ink);
}
.nav .brand:hover { text-decoration: none; color: var(--accent); }

.nav .links { display: flex; gap: 26px; }
.nav .links a {
  color: var(--ink-dim);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.nav .links a:hover, .nav .links a.active { color: var(--ink); text-decoration: none; }
.nav-button {
  border: 0; background: none; color: var(--ink-dim); cursor: pointer; padding: 0;
  font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase;
}
.nav-button:hover { color: var(--ink); }

/* ---- storyline sections (home) ---- */
.story {
  position: relative;
  z-index: 10;
}

.chapter {
  min-height: 120vh;
  display: flex;
  align-items: center;
  padding: 0 8vw;
}

.chapter .panel {
  max-width: 560px;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s ease, transform 0.9s ease;
  will-change: opacity, transform;
}
.chapter.visible .panel { opacity: 1; transform: none; }

.chapter.right { justify-content: flex-end; }
.chapter.center { justify-content: center; text-align: center; }

.chapter .kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 14px;
}

.chapter h1 {
  font-size: clamp(2.6rem, 7vw, 5rem);
  line-height: 1.04;
  margin: 0 0 18px;
  letter-spacing: -0.02em;
  background: linear-gradient(100deg, var(--ink) 30%, var(--accent) 70%, var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.chapter h2 {
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  line-height: 1.1;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}

.chapter p.lead { font-size: 1.1rem; color: var(--ink-dim); margin: 0 0 12px; }

/* hero */
#hero { min-height: 100vh; }
.scroll-hint {
  position: absolute;
  bottom: 34px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--ink-dim);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  animation: bob 2.4s ease-in-out infinite;
}
@keyframes bob {
  0%, 100% { transform: translate(-50%, 0); opacity: 0.9; }
  50% { transform: translate(-50%, 10px); opacity: 0.4; }
}

/* skills chips */
.chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.chip {
  border: 1px solid var(--line);
  background: rgba(110, 231, 255, 0.06);
  color: var(--ink);
  padding: 7px 14px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
}

/* project cards */
.works { display: grid; gap: 16px; margin-top: 24px; }
.work {
  border: 1px solid var(--line);
  background: var(--card);
  backdrop-filter: blur(8px);
  border-radius: var(--radius);
  padding: 18px 20px;
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.work:hover { border-color: rgba(110, 231, 255, 0.5); transform: translateY(-2px); }
.work h3 { margin: 0 0 6px; font-size: 1.05rem; }
.work p { margin: 0; color: var(--ink-dim); font-size: 0.95rem; }
.work .meta { font-family: var(--mono); font-size: 11px; color: var(--accent); letter-spacing: 0.12em; text-transform: uppercase; }

/* buttons */
.btn {
  display: inline-block;
  padding: 13px 30px;
  border-radius: 999px;
  border: 1px solid rgba(110, 231, 255, 0.55);
  background: rgba(110, 231, 255, 0.1);
  color: var(--ink);
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  font-family: var(--font);
  transition: background 0.25s ease, box-shadow 0.25s ease;
}
.btn:hover {
  text-decoration: none;
  background: rgba(110, 231, 255, 0.22);
  box-shadow: 0 0 34px rgba(110, 231, 255, 0.25);
}
.btn.ghost { border-color: var(--line); background: transparent; }

/* chapter progress dots */
.waypoints {
  position: fixed;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.waypoints a {
  width: 8px; height: 8px;
  border-radius: 50%;
  border: 1px solid var(--ink-dim);
  display: block;
  transition: background 0.3s, transform 0.3s;
}
.waypoints a.active { background: var(--accent); border-color: var(--accent); transform: scale(1.35); }

/* ---- generic sub-pages (blog, contact) ---- */
.page {
  position: relative;
  z-index: 10;
  max-width: 780px;
  margin: 0 auto;
  padding: 140px 24px 90px;
}
.page-head .kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 10px;
}
.page-head h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); margin: 0 0 12px; letter-spacing: -0.02em; }
.page-head p { color: var(--ink-dim); margin: 0 0 34px; }
.glass {
  border: 1px solid var(--line);
  background: var(--card);
  backdrop-filter: blur(18px);
  border-radius: var(--radius);
}
.section-label {
  margin: 0 0 10px; color: var(--accent); font: 11px/1.4 var(--mono);
  letter-spacing: 0.18em; text-transform: uppercase;
}

/* blog cards */
.post-list { display: grid; gap: 18px; }
.post-card {
  display: block;
  border: 1px solid var(--line);
  background: var(--card);
  backdrop-filter: blur(8px);
  border-radius: var(--radius);
  padding: 22px 24px;
  color: var(--ink);
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.post-card:hover { text-decoration: none; border-color: rgba(110, 231, 255, 0.5); transform: translateY(-2px); }
.post-card h2 { margin: 4px 0 8px; font-size: 1.35rem; }
.post-card .excerpt { color: var(--ink-dim); margin: 0; font-size: 0.98rem; }
.post-card .date { font-family: var(--mono); font-size: 11.5px; color: var(--accent); letter-spacing: 0.1em; }
.post-card .cover { width: 100%; border-radius: 10px; margin-bottom: 14px; max-height: 260px; object-fit: cover; }

.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-dim);
  border: 1px solid var(--line);
  padding: 3px 10px;
  border-radius: 999px;
}

.empty { color: var(--ink-dim); text-align: center; padding: 60px 0; font-family: var(--mono); font-size: 14px; }

/* article */
.article .cover { width: 100%; border-radius: var(--radius); margin: 0 0 30px; }
.article-head { margin: 38px 0 32px; }
.article-head .kicker {
  margin: 0 0 12px; color: var(--accent); font: 12px/1.4 var(--mono);
  letter-spacing: 0.16em; text-transform: uppercase;
}
.article-head h1 { font-size: clamp(2.2rem, 6vw, 4rem); line-height: 1.08; margin: 0 0 14px; }
.article-head > p:not(.kicker) { color: var(--ink-dim); font-size: 1.12rem; }
.article-body { font-size: 1.06rem; }
.article-body h1, .article-body h2, .article-body h3 { line-height: 1.25; margin: 1.8em 0 0.6em; }
.article-body p { margin: 0 0 1.1em; }
.article-body ul, .article-body ol { padding-left: 1.5em; margin: 0 0 1.3em; }
.article-body img { max-width: 100%; border-radius: 10px; }
.article-body pre {
  background: #0a0d1c;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.88em;
}
.article-body code { font-family: var(--mono); font-size: 0.9em; background: rgba(110, 231, 255, 0.08); padding: 2px 6px; border-radius: 5px; }
.article-body pre code { background: none; padding: 0; }
.article-body blockquote {
  margin: 1.2em 0;
  padding: 4px 20px;
  border-left: 3px solid var(--accent);
  color: var(--ink-dim);
}
.article-body hr { border: none; border-top: 1px solid var(--line); margin: 2.2em 0; }
.back-link { font-family: var(--mono); font-size: 13px; letter-spacing: 0.08em; }

/* contact form */
.contact-grid { display: grid; gap: 40px; }
.contact-page { max-width: 900px; }
form.contact { padding: clamp(22px, 5vw, 40px); }
form.contact label {
  display: block;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin: 0 0 8px;
}
form.contact input, form.contact textarea {
  width: 100%;
  background: rgba(10, 13, 28, 0.8);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--ink);
  font-family: var(--font);
  font-size: 15px;
  padding: 13px 16px;
  margin-bottom: 22px;
  outline: none;
  transition: border-color 0.25s ease;
}
form.contact input:focus, form.contact textarea:focus { border-color: rgba(110, 231, 255, 0.6); }
form.contact textarea { min-height: 160px; resize: vertical; }

.form-note { font-family: var(--mono); font-size: 13px; margin-top: 16px; min-height: 20px; }
.form-note.ok { color: #6fe7a8; }
.form-note.err { color: #ff8f9e; }

.contact-ways { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 8px; }
.way {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 999px;
  padding: 10px 20px;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
}
.way:hover { text-decoration: none; border-color: rgba(110, 231, 255, 0.5); }

/* ---- admin console ---- */
.admin-shell { position: relative; z-index: 10; width: min(1380px, calc(100% - 40px)); margin: 0 auto; padding: 120px 0 80px; }
.auth-card { max-width: 520px; margin: 8vh auto 0; padding: clamp(28px, 6vw, 52px); }
.auth-card .kicker, .admin-head .kicker {
  margin: 0 0 10px; color: var(--accent); font: 12px/1.4 var(--mono);
  letter-spacing: 0.25em; text-transform: uppercase;
}
.auth-card h1 { margin: 0 0 8px; font-size: clamp(2rem, 6vw, 3.2rem); line-height: 1.1; }
.auth-card form { margin-top: 30px; }
.auth-card label, .editor label {
  display: block; margin: 0 0 7px; color: var(--ink-dim); font: 11px/1.4 var(--mono);
  letter-spacing: 0.13em; text-transform: uppercase;
}
.auth-card input, .editor input:not([type="checkbox"]), .editor textarea {
  width: 100%; margin: 0 0 20px; padding: 12px 14px; color: var(--ink);
  background: rgba(4, 6, 16, 0.72); border: 1px solid var(--line); border-radius: 9px; outline: none;
}
.auth-card input:focus, .editor input:focus, .editor textarea:focus { border-color: rgba(110, 231, 255, 0.65); }
.admin-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 38px; }
.admin-head h1 { margin: 0; font-size: clamp(2rem, 5vw, 3.4rem); }
.admin-tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--line); margin-bottom: 28px; }
.admin-tabs button {
  position: relative; border: 0; background: none; color: var(--ink-dim); padding: 11px 18px 14px;
  cursor: pointer; font: 12px/1.4 var(--mono); letter-spacing: 0.12em; text-transform: uppercase;
}
.admin-tabs button::after { content: ''; position: absolute; height: 2px; left: 12px; right: 12px; bottom: -1px; background: transparent; }
.admin-tabs button.active { color: var(--ink); }
.admin-tabs button.active::after { background: var(--accent); box-shadow: 0 0 15px var(--accent); }
.admin-tabs span { display: inline-grid; place-items: center; min-width: 22px; height: 22px; margin-left: 5px; border: 1px solid var(--line); border-radius: 99px; }
.admin-layout { display: grid; grid-template-columns: minmax(260px, 0.65fr) minmax(480px, 1.35fr); gap: 20px; align-items: start; }
.admin-list { display: grid; gap: 8px; }
.admin-list-item {
  width: 100%; display: grid; grid-template-columns: 8px 1fr auto; align-items: center; gap: 13px;
  padding: 16px; text-align: left; color: var(--ink); background: rgba(12, 16, 34, 0.75);
  border: 1px solid var(--line); border-radius: 11px; cursor: pointer;
}
.admin-list-item:hover { border-color: rgba(110, 231, 255, 0.42); background: rgba(18, 23, 48, 0.9); }
.admin-list-item strong { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.admin-list-item small { display: block; margin-top: 3px; color: var(--ink-dim); font: 10.5px/1.4 var(--mono); }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: #67708e; }
.status-dot.live { background: #65e7a4; box-shadow: 0 0 12px rgba(101, 231, 164, 0.8); }
.editor { padding: clamp(20px, 3.4vw, 36px); }
.editor-top { display: flex; justify-content: space-between; gap: 20px; margin-bottom: 26px; }
.editor-top h2 { margin: 0; line-height: 1.2; }
.icon-button { color: var(--ink-dim); background: none; border: 0; font-size: 28px; cursor: pointer; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.upload-row { display: grid; grid-template-columns: 1fr auto; gap: 9px; }
.upload-row input { margin-bottom: 0 !important; }
.upload-button {
  display: grid !important; place-items: center; align-self: start; min-height: 48px; padding: 0 18px; margin: 0 !important;
  color: var(--ink) !important; border: 1px solid var(--line); border-radius: 9px; cursor: pointer;
}
.cover-preview { position: relative; margin: 10px 0 22px; }
.cover-preview img { display: block; width: 100%; max-height: 230px; object-fit: cover; border-radius: 10px; }
.cover-preview button { position: absolute; right: 9px; top: 9px; border: 0; border-radius: 99px; padding: 5px 10px; color: white; background: rgba(4, 6, 14, 0.8); cursor: pointer; }
.content-label { display: flex; justify-content: space-between; align-items: center; }
.content-label label span { color: #66708d; letter-spacing: 0; text-transform: none; }
.content-label button { border: 0; background: none; color: var(--accent); cursor: pointer; font: 12px var(--mono); }
.content-editor { min-height: 360px; resize: vertical; font-family: var(--mono); line-height: 1.65; }
.editor-preview { min-height: 360px; padding: 18px; margin-bottom: 20px; background: rgba(4, 6, 16, 0.5); border: 1px solid var(--line); border-radius: 9px; }
.publish-toggle { display: flex !important; align-items: center; gap: 10px; width: max-content; cursor: pointer; }
.publish-toggle input { width: 17px; height: 17px; accent-color: var(--accent); }
.publish-toggle span { color: var(--ink); font-family: var(--font); font-size: 14px; letter-spacing: 0; text-transform: none; }
.editor-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-top: 25px; }
.editor-actions .form-note { margin: 0; }
.danger-button { border: 0; background: none; color: #ff91a1; padding: 7px; cursor: pointer; }
.danger-button:hover { text-decoration: underline; }
.editor-placeholder { min-height: 400px; display: grid; place-content: center; text-align: center; color: var(--ink-dim); padding: 50px; }
.placeholder-orbit { display: block; color: var(--accent); font-size: 62px; line-height: 1; animation: spin 12s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.message-list { display: grid; gap: 14px; max-width: 900px; }
.message-card { padding: 24px; }
.message-head { display: flex; align-items: start; justify-content: space-between; gap: 20px; }
.message-head h2 { margin: 0 0 2px; font-size: 1.1rem; }
.message-head p { margin: 0; color: var(--ink-dim); font: 12px/1.5 var(--mono); }
.message-copy { white-space: pre-wrap; margin: 20px 0 0; color: #dce1f7; }

/* footer */
.footer {
  position: relative;
  z-index: 10;
  text-align: center;
  color: var(--ink-dim);
  font-family: var(--mono);
  font-size: 12px;
  padding: 30px 20px 40px;
}

@media (max-width: 700px) {
  .nav { padding: 14px 18px; }
  .nav .links { gap: 13px; }
  .nav .brand { max-width: 135px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .nav .links a, .nav-button { font-size: 11px; }
  .waypoints { display: none; }
  .chapter { padding: 0 24px; }
  .chapter.right { justify-content: flex-start; }
  .admin-shell { width: min(100% - 24px, 1380px); padding-top: 95px; }
  .admin-head { align-items: start; }
  .admin-head .btn { padding: 10px 16px; white-space: nowrap; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .upload-row { grid-template-columns: 1fr; }
  .admin-tabs button { padding-inline: 10px; }
}

@media (max-width: 900px) {
  .admin-layout { grid-template-columns: 1fr; }
  .editor-placeholder { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .chapter .panel { transition: none; }
  .scroll-hint { animation: none; }
  .placeholder-orbit { animation: none; }
}