:root {
  --bg: #08111f;
  --bg-soft: #0d1b2e;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.13);
  --line: rgba(255, 255, 255, 0.15);
  --text: #eef7ff;
  --muted: #a9bbcc;
  --cyan: #54e6ff;
  --blue: #4183ff;
  --violet: #a76cff;
  --green: #7cf6c1;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
  --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(84, 230, 255, 0.18), transparent 35vw),
    radial-gradient(circle at top right, rgba(167, 108, 255, 0.16), transparent 38vw),
    linear-gradient(180deg, #07101c 0%, #0b1424 46%, #070b12 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select { font: inherit; }

.orb { position: fixed; width: 420px; height: 420px; border-radius: 50%; filter: blur(90px); opacity: .4; pointer-events: none; z-index: -1; }
.orb-a { background: var(--cyan); top: 20%; left: -170px; }
.orb-b { background: var(--violet); bottom: 10%; right: -180px; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px clamp(18px, 4vw, 54px);
  background: rgba(7, 14, 25, 0.76);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; gap: 12px; align-items: center; }
.brand-mark {
  width: 44px; height: 44px; border-radius: 14px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #04101d; font-weight: 800; letter-spacing: -0.04em;
}
.brand strong { display: block; font-size: 15px; }
.brand small { display: block; color: var(--muted); font-size: 12px; margin-top: 2px; }
.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav a, .private-btn {
  border: 1px solid transparent; background: transparent; color: var(--muted);
  padding: 10px 13px; border-radius: 999px; cursor: pointer;
  transition: .2s ease;
}
.main-nav a:hover, .main-nav a.active, .private-btn:hover { color: var(--text); border-color: var(--line); background: var(--panel); }
.private-btn { color: var(--cyan); border-color: rgba(84, 230, 255, 0.24); }
.menu-toggle { display: none; background: var(--panel); border: 1px solid var(--line); color: var(--text); border-radius: 12px; padding: 8px 11px; }

.section { padding: clamp(72px, 8vw, 118px) clamp(20px, 5vw, 72px); max-width: 1240px; margin: 0 auto; }
.hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr); gap: clamp(32px, 6vw, 76px); align-items: center; min-height: calc(100vh - 84px); }
.eyebrow { color: var(--cyan); text-transform: uppercase; letter-spacing: .16em; font-size: 12px; font-weight: 800; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(42px, 7vw, 86px); line-height: .96; letter-spacing: -0.07em; margin: 18px 0 24px; }
h2 { font-size: clamp(30px, 4vw, 54px); line-height: 1.03; letter-spacing: -0.05em; margin: 10px 0 14px; }
h3 { letter-spacing: -0.02em; }
p { color: var(--muted); line-height: 1.72; }
.hero-summary { font-size: clamp(17px, 2vw, 20px); max-width: 760px; }
.hero-actions, .form-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.primary-action, .secondary-action {
  display: inline-flex; align-items: center; justify-content: center; border-radius: 999px;
  padding: 13px 19px; border: 1px solid transparent; cursor: pointer; transition: .2s ease; font-weight: 700;
}
.primary-action { background: linear-gradient(135deg, var(--cyan), var(--blue)); color: #03101d; box-shadow: 0 14px 36px rgba(65, 131, 255, .28); }
.secondary-action { background: var(--panel); color: var(--text); border-color: var(--line); }
.primary-action:hover, .secondary-action:hover { transform: translateY(-2px); }
.small { padding: 9px 13px; font-size: 14px; }
.metrics-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 34px; }
.metrics-grid article, .info-card, .contact-card, .timeline-item, .empty-state, .article-card {
  background: linear-gradient(180deg, var(--panel-strong), rgba(255,255,255,.045));
  border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
}
.metrics-grid article { padding: 18px; }
.metrics-grid strong { display: block; font-size: 24px; color: var(--green); }
.metrics-grid span { color: var(--muted); font-size: 13px; }
.hero-card { position: relative; isolation: isolate; }
.photo-frame { border-radius: 36px; overflow: hidden; border: 1px solid rgba(84,230,255,.32); box-shadow: var(--shadow); background: #111; }
.photo-frame img { width: 100%; aspect-ratio: 4/5; object-fit: cover; object-position: center; }
.ai-panel { position: absolute; right: -22px; bottom: 36px; width: 220px; padding: 18px; border-radius: 22px; background: rgba(7, 15, 27, .78); border: 1px solid rgba(84,230,255,.28); backdrop-filter: blur(12px); box-shadow: var(--shadow); }
.ai-panel span { color: var(--muted); font-size: 13px; }
.bar-chart { display: flex; align-items: end; gap: 8px; height: 90px; margin-top: 14px; }
.bar-chart i { flex: 1; border-radius: 8px 8px 0 0; background: linear-gradient(180deg, var(--cyan), var(--blue)); }
.bar-chart i:nth-child(1) { height: 30%; } .bar-chart i:nth-child(2) { height: 52%; } .bar-chart i:nth-child(3) { height: 44%; } .bar-chart i:nth-child(4) { height: 72%; } .bar-chart i:nth-child(5) { height: 92%; }
.section-heading { max-width: 760px; margin-bottom: 34px; }
.compact { margin-bottom: 24px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chips span { border: 1px solid rgba(84,230,255,.18); background: rgba(84,230,255,.07); color: #dffaff; padding: 10px 13px; border-radius: 999px; font-size: 14px; }
.timeline { display: grid; gap: 18px; }
.timeline-item { padding: 26px; position: relative; }
.timeline-item time { display: inline-block; color: var(--cyan); font-weight: 800; font-size: 13px; margin-bottom: 10px; }
.timeline-item ul, .info-card ul { color: var(--muted); line-height: 1.75; padding-left: 20px; }
.cv-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 22px; }
.info-card { padding: 24px; }
.article-toolbar { display: flex; gap: 12px; margin-bottom: 22px; }
.article-toolbar input, .article-toolbar select, .form-stack input {
  width: 100%; color: var(--text); background: rgba(255,255,255,.08); border: 1px solid var(--line); border-radius: 16px; padding: 13px 14px; outline: none;
}
.article-toolbar select { max-width: 210px; }
.article-toolbar input:focus, .article-toolbar select:focus, .form-stack input:focus, .rich-editor:focus { border-color: var(--cyan); box-shadow: 0 0 0 4px rgba(84,230,255,.09); }
.articles-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.article-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.article-card:hover,
.article-card:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(84,230,255,.36);
  outline: none;
}
.article-card img,
.article-card-cover {
  width: 100%;
  height: 240px;
  object-fit: cover;
  background: rgba(255,255,255,.06);
}
.article-card-placeholder {
  display: grid;
  place-items: center;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}
.article-card-content { padding: 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.article-card-compact h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.25;
}
.article-card time { color: var(--cyan); font-size: 13px; font-weight: 700; }
.article-card .tags { display: flex; gap: 7px; flex-wrap: wrap; }
.article-card .tags span { background: rgba(167,108,255,.13); border: 1px solid rgba(167,108,255,.24); color: #eadfff; padding: 6px 8px; border-radius: 999px; font-size: 12px; }
.article-card .article-body { color: var(--muted); line-height: 1.68; max-height: 230px; overflow: auto; }
.article-card-compact .read-more {
  color: var(--cyan);
  font-weight: 800;
  font-size: 14px;
  margin-top: 2px;
}
.article-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.empty-state { grid-column: 1/-1; padding: 34px; text-align: center; }
.contact-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.contact-card { padding: 26px; transition: .2s ease; }
.contact-card:hover { transform: translateY(-3px); border-color: rgba(84,230,255,.35); }
.contact-card span { display: block; color: var(--muted); margin-bottom: 8px; }
.contact-card strong { font-size: 19px; }
.private-panel { position: fixed; inset: 0; z-index: 100; display: none; }
.private-panel.open { display: block; }
.panel-overlay { position: absolute; inset: 0; background: rgba(0,0,0,.6); backdrop-filter: blur(6px); }
.panel-content { position: absolute; right: 0; top: 0; height: 100%; width: min(620px, 100%); overflow-y: auto; background: #091525; border-left: 1px solid var(--line); padding: 34px; box-shadow: var(--shadow); }
.close-panel { position: absolute; right: 18px; top: 16px; width: 40px; height: 40px; border-radius: 50%; background: var(--panel); color: var(--text); border: 1px solid var(--line); cursor: pointer; font-size: 24px; }
.form-stack { display: grid; gap: 16px; }
.form-stack label { color: var(--muted); display: grid; gap: 8px; }
.form-error { color: #ff8a8a; min-height: 22px; }
.editor-topline { display: flex; align-items: start; justify-content: space-between; gap: 16px; }
.editor-toolbar { display: flex; flex-wrap: wrap; gap: 8px; }
.editor-toolbar button { background: var(--panel); color: var(--text); border: 1px solid var(--line); border-radius: 12px; padding: 8px 10px; cursor: pointer; }
.rich-editor { min-height: 260px; color: var(--text); background: rgba(255,255,255,.08); border: 1px solid var(--line); border-radius: 16px; padding: 18px; outline: none; line-height: 1.7; }
.rich-editor:empty::before { content: attr(data-placeholder); color: #75869a; }
.image-preview { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.image-preview img { height: 160px; width: 100%; object-fit: cover; border-radius: 16px; border: 1px solid var(--line); }
.hint { font-size: 13px; }
.chat-toggle { position: fixed; right: 24px; bottom: 24px; z-index: 75; width: 58px; height: 58px; border-radius: 50%; border: 1px solid rgba(84,230,255,.38); background: linear-gradient(135deg, var(--cyan), var(--blue)); color: #06111e; font-weight: 900; cursor: pointer; box-shadow: var(--shadow); }
.chatbot { position: fixed; right: 24px; bottom: 94px; width: min(390px, calc(100vw - 34px)); height: 520px; z-index: 80; display: none; flex-direction: column; background: #0a1626; border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow); overflow: hidden; }
.chatbot.open { display: flex; }
.chatbot header { display: flex; justify-content: space-between; align-items: center; padding: 14px 16px; border-bottom: 1px solid var(--line); }
.chatbot header button { background: transparent; color: var(--text); border: 0; font-size: 24px; cursor: pointer; }
.chat-log { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.bot-message, .user-message { padding: 11px 12px; border-radius: 14px; line-height: 1.5; max-width: 86%; }
.bot-message { background: var(--panel); color: var(--text); align-self: flex-start; }
.user-message { background: rgba(84,230,255,.18); color: var(--text); align-self: flex-end; }
.chatbot form { display: flex; gap: 8px; padding: 12px; border-top: 1px solid var(--line); }
.chatbot input { flex: 1; border: 1px solid var(--line); background: rgba(255,255,255,.08); color: var(--text); border-radius: 14px; padding: 11px; }
.chatbot button[type="submit"] { border: 0; border-radius: 14px; background: var(--cyan); color: #06111e; font-weight: 800; padding: 0 13px; }
.site-footer { display: flex; justify-content: space-between; gap: 16px; padding: 28px clamp(20px, 5vw, 72px); color: var(--muted); border-top: 1px solid var(--line); }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }
.delay-1 { transition-delay: .12s; }

@media (max-width: 920px) {
  .menu-toggle { display: inline-flex; }
  .main-nav { position: absolute; top: 76px; right: 18px; left: 18px; display: none; flex-direction: column; align-items: stretch; padding: 14px; background: rgba(8, 17, 31, .96); border: 1px solid var(--line); border-radius: 20px; }
  .main-nav.open { display: flex; }
  .hero { grid-template-columns: 1fr; min-height: unset; }
  .hero-card { max-width: 520px; margin-inline: auto; }
  .cv-grid, .articles-grid, .contact-grid { grid-template-columns: 1fr; }
  .metrics-grid { grid-template-columns: 1fr; }
  .article-toolbar { flex-direction: column; }
  .article-toolbar select { max-width: none; }
  .site-footer { flex-direction: column; }
}

@media (max-width: 560px) {
  .panel-content { padding: 26px 18px; }
  .ai-panel { position: static; width: 100%; margin-top: 14px; }
  h1 { font-size: 42px; }
}

.article-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.article-actions button[data-delete] { border-color: rgba(255, 138, 138, .35); color: #ffd0d0; }

body.modal-open { overflow: hidden; }
.article-card { cursor: pointer; transition: transform .2s ease, border-color .2s ease, background .2s ease; }
.article-card:hover, .article-card:focus { transform: translateY(-3px); border-color: rgba(84,230,255,.38); outline: none; }
.article-card .read-more { color: var(--cyan); font-weight: 800; font-size: 14px; margin-top: auto; }
.article-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.article-actions button { position: relative; z-index: 2; }
.article-card .article-body { max-height: 150px; overflow: hidden; position: relative; }
.article-card .article-body::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 56px; background: linear-gradient(180deg, transparent, #0a1626); pointer-events: none; }

.article-modal { position: fixed; inset: 0; z-index: 120; display: none; padding: clamp(14px, 3vw, 34px); }
.article-modal.open { display: grid; place-items: center; }
.article-modal-overlay { position: absolute; inset: 0; background: rgba(0,0,0,.72); backdrop-filter: blur(10px); }
.article-modal-window {
  position: relative;
  width: min(920px, 100%);
  max-height: min(88vh, 980px);
  overflow-y: auto;
  background: linear-gradient(180deg, #0d1b2e 0%, #08111f 100%);
  border: 1px solid rgba(84,230,255,.24);
  border-radius: 28px;
  box-shadow: 0 34px 100px rgba(0,0,0,.58);
}
.article-modal-close {
  position: sticky;
  top: 16px;
  float: right;
  z-index: 3;
  margin: 16px 16px 0 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(8,17,31,.88);
  color: var(--text);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
}
.article-modal-close:hover { border-color: rgba(84,230,255,.45); color: var(--cyan); }
.article-modal-content { padding: clamp(26px, 5vw, 64px); clear: both; }
.article-modal-header { max-width: 760px; margin: 0 auto 28px; text-align: left; }
.article-modal-header time { display: inline-block; color: var(--cyan); font-weight: 800; font-size: 13px; margin-bottom: 14px; }
.article-modal-header h2 { margin: 0 0 16px; font-size: clamp(30px, 5vw, 58px); line-height: 1.04; letter-spacing: -0.055em; }
.article-modal-subtitle { font-size: clamp(17px, 2vw, 21px); line-height: 1.7; color: #c7d8e8; }
.article-modal-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.article-modal-tags span { background: rgba(167,108,255,.16); border: 1px solid rgba(167,108,255,.28); color: #eadfff; padding: 7px 10px; border-radius: 999px; font-size: 13px; }
.article-modal-figure {
  margin: 26px auto;
  max-width: 820px;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.05);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(8px, 1.5vw, 14px);
}
.article-modal-figure img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: min(70vh, 720px);
  object-fit: contain;
  border-radius: 18px;
}
.article-modal-body { max-width: 760px; margin: 30px auto 0; color: #d8e5f2; font-size: 18px; line-height: 1.82; }
.article-modal-body p { color: #d8e5f2; margin: 0 0 20px; }
.article-modal-body h3, .article-modal-body h4 { color: var(--text); margin: 30px 0 12px; }
.article-modal-body ul, .article-modal-body ol { color: #d8e5f2; padding-left: 24px; margin-bottom: 22px; }
.article-modal-body li { margin-bottom: 10px; }
.article-modal-body a { color: var(--cyan); text-decoration: underline; }

@media (max-width: 560px) {
  .article-modal { padding: 10px; }
  .article-modal-window { max-height: 92vh; border-radius: 22px; }
  .article-modal-content { padding: 22px; }
  .article-modal-body { font-size: 16px; }
  .article-modal-figure img { max-height: 62vh; }
}