/* =====================================================================
   ИП Фёдоров Д.Н. — hi-tech industrial / HUD
   Tokens: тёмный OLED + safety orange + cyan (данные) + blueprint-grid
   ===================================================================== */

:root {
  --bg: #0A0E13;
  --bg-2: #0D1320;
  --panel: #101726;
  --panel-2: #141D2E;
  --line: #1F2A3C;
  --line-bright: #2D3B52;
  --text: #E8EEF6;
  --muted: #93A2B7;
  --accent: #FF6B1A;
  --accent-d: #E0550A;
  --cyan: #2FD8FF;
  --ok: #2FE6A6;
  --grid-a: rgba(70, 92, 125, 0.10);
  --grid-b: rgba(70, 92, 125, 0.05);
  --chamfer: 16px;
  --chamfer-sm: 10px;
  --mono: "JetBrains Mono", "Consolas", monospace;
  --sans: "Inter", -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --disp: "Space Grotesk", "Inter", Arial, sans-serif;
  --sh: 0 18px 50px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img, video { max-width: 100%; display: block; }
a { color: inherit; }
::selection { background: var(--accent); color: #08130f; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

button, a, .g-media img, .g-media video { transition: transform .18s ease, border-color .18s ease, background .18s ease, color .18s ease, box-shadow .18s ease; }

.sec { padding: 72px 0 84px; position: relative; }
.sec.alt { background: var(--bg-2); }

/* blueprint grid backdrop for hero + alt sections via pseudo hidden */
.hero-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--grid-a) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-a) 1px, transparent 1px),
    linear-gradient(var(--grid-b) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-b) 1px, transparent 1px);
  background-size: 40px 40px, 40px 40px, 8px 8px, 8px 8px;
  mask-image: radial-gradient(ellipse 90% 85% at 50% 30%, black 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 85% at 50% 30%, black 30%, transparent 78%);
}

/* ===== Ticker ========================================================== */
.ticker {
  background: var(--accent);
  color: #14100b;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  overflow: hidden;
  white-space: nowrap;
  border-bottom: 1px solid #000;
}
.tick-inner {
  display: inline-block;
  padding: 7px 0;
  animation: tick 26s linear infinite;
  will-change: transform;
}
@keyframes tick { to { transform: translateX(-50%); } }
.tick-inner span { margin: 0 22px; }
.tick-inner span::before { content: "▪ "; color: #000; }

/* ===== Nav ============================================================= */
.nav {
  position: sticky; top: 0; z-index: 60;
  background: rgba(10, 14, 19, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; gap: 22px; padding: 12px 24px; max-width: 1140px; margin: 0 auto; }
.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-family: var(--mono); font-weight: 600; font-size: 18px; letter-spacing: .03em; }
.logo svg { color: var(--accent); }
.logo b { color: var(--accent); font-weight: 600; }
.nav-links { display: flex; gap: 2px; margin-left: auto; flex-wrap: wrap; }
.nav-links a {
  color: var(--muted); text-decoration: none; padding: 7px 11px; border-radius: 6px;
  font-family: var(--mono); font-size: 13px; letter-spacing: .06em; text-transform: uppercase;
  border-bottom: 2px solid transparent;
}
.nav-links a i { font-style: normal; color: var(--cyan); font-size: 11px; margin-right: 5px; }
.nav-links a:hover { color: var(--text); }
.nav-links a:hover i { color: var(--accent); }
.nav-links a[aria-current] { color: var(--text); border-bottom-color: var(--accent); }
.nav-phone {
  color: var(--text); text-decoration: none; font-family: var(--mono); font-weight: 600; font-size: 14.5px;
  white-space: nowrap; display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 12px; border: 1px solid var(--line-bd); border-radius: 8px;
}
.nav-phone:hover { border-color: var(--accent); color: var(--accent); }
.ph-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(255,107,26,.6); animation: pulse 2s infinite; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(255,107,26,.55); }
  70% { box-shadow: 0 0 0 9px rgba(255,107,26,0); }
  100% { box-shadow: 0 0 0 0 rgba(255,107,26,0); }
}

/* ===== Hero ============================================================ */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1200px 500px at 85% -20%, rgba(47,216,255,.09), transparent 60%),
    radial-gradient(900px 420px at -10% 110%, rgba(255,107,26,.12), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  color: var(--text);
  padding: 78px 0 72px;
  border-bottom: 1px solid var(--line);
}
.hero-corner { position: absolute; width: 46px; height: 46px; pointer-events: none; }
.hero-corner.c-tl { top: 18px; left: 18px; border-top: 2px solid var(--accent); border-left: 2px solid var(--accent); }
.hero-corner.c-br { bottom: 18px; right: 18px; border-bottom: 2px solid var(--accent); border-right: 2px solid var(--accent); }
.hero-cols { position: relative; display: grid; grid-template-columns: 1.35fr .85fr; gap: 48px; align-items: center; }
.kicker { display: inline-flex; align-items: center; gap: 9px; font-family: var(--mono); font-size: 12px; letter-spacing: .16em; color: var(--cyan); text-transform: uppercase; margin-bottom: 16px; }
.k-dot { width: 8px; height: 8px; background: var(--accent); display: inline-block; }
.hero h1 { font-family: var(--disp); font-size: clamp(34px, 4.6vw, 52px); line-height: 1.08; font-weight: 700; letter-spacing: -.01em; margin-bottom: 20px; }
.hero h1 .accent { color: var(--accent); }
.hero .sub { font-size: 17px; color: var(--muted); max-width: 560px; margin-bottom: 30px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }

.chamfer { clip-path: polygon(0 0, calc(100% - var(--chamfer)) 0, 100% var(--chamfer), 100% 100%, var(--chamfer) 100%, 0 calc(100% - var(--chamfer))); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 26px; font-family: var(--mono); font-weight: 600; font-size: 14px;
  letter-spacing: .06em; text-transform: uppercase; text-decoration: none;
  border: 1px solid transparent; cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}
.btn-accent { background: var(--accent); color: #140b04; }
.btn-accent:hover { background: var(--accent-d); transform: translateY(-2px); box-shadow: 0 10px 28px rgba(255,107,26,.32); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line-bd); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn .arr { display: inline-block; transition: transform .18s; }
.btn:hover .arr { transform: translateX(4px); }

.hero-stats { display: flex; gap: 42px; flex-wrap: wrap; }
.stat { border-left: 2px solid var(--accent); padding-left: 14px; }
.stat b { display: block; font-family: var(--mono); font-size: 26px; font-weight: 600; color: #fff; line-height: 1.1; }
.stat span { font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em; color: var(--muted); text-transform: uppercase; }

/* readout panel (HUD) */
.hero-side { display: flex; flex-direction: column; gap: 18px; max-width: 380px; width: 100%; justify-self: end; }
.readout {
  background: rgba(9, 15, 24, 0.85);
  border: 1px solid var(--line-bd);
  border-radius: 0;
  position: relative;
  padding: 14px 18px 16px;
}
.readout::before, .readout::after { content: ""; position: absolute; width: 12px; height: 12px; border-color: var(--cyan); border-style: solid; }
.readout::before { top: -1px; left: -1px; border-width: 2px 0 0 2px; }
.readout::after { bottom: -1px; right: -1px; border-width: 0 2px 2px 0; }
.ro-head { display: flex; justify-content: space-between; align-items: center; font-family: var(--mono); font-size: 11px; letter-spacing: .14em; color: var(--cyan); padding-bottom: 10px; border-bottom: 1px solid var(--line); margin-bottom: 8px; }
.ro-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); display: inline-block; box-shadow: 0 0 10px rgba(255,107,26,.9); animation: blink 1.4s steps(1) infinite; }
@keyframes blink { 50% { opacity: .2; } }
.ro-line { display: flex; justify-content: space-between; gap: 12px; font-family: var(--mono); font-size: 11.5px; padding: 6.5px 0; border-bottom: 1px dashed rgba(45,59,82,.5); }
.ro-line span { color: var(--muted); letter-spacing: .05em; }
.ro-line b { color: var(--text); font-weight: 500; text-align: right; letter-spacing: .02em; }
.ro-cursor { font-family: var(--mono); color: var(--cyan); font-size: 15px; margin-top: 8px; animation: blinkline 1s steps(2) infinite; }
@keyframes blinkline { 50% { opacity: 0; } }
.ro-foot { display: flex; justify-content: space-between; align-items: center; font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em; color: var(--muted); }
.ro-status { display: inline-flex; align-items: center; gap: 6px; color: var(--amber); }
.ro-status i { width: 7px; height: 7px; border-radius: 50%; background: var(--amber); animation: blink 1.8s infinite; }

/* ===== Section head =================================================== */
.section-head { max-width: 700px; margin-bottom: 40px; }
.section-head .kicker { margin-bottom: 12px; }
.section-head h2 { font-family: var(--disp); font-weight: 700; font-size: clamp(28px, 3.6vw, 40px); letter-spacing: -.01em; line-height: 1.1; margin-bottom: 12px; }
.section-head p { color: var(--muted); font-size: 16px; }

/* ===== Services ======================================================= */
.grid-services { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 22px; }
.card-service {
  background: linear-gradient(180deg, var(--panel) 0%, rgba(16,23,38,0.7) 100%);
  border: 1px solid var(--line);
  padding: 22px 24px 24px;
  position: relative;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.card-service::after {
  content: ""; position: absolute; inset: 0; opacity: 0; transition: opacity .18s;
  border: 1px solid var(--accent);
  clip-path: inherit;
  pointer-events: none;
}
.card-service:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: var(--sh); }
.card-service:hover::after { opacity: 1; }
.cs-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.cs-ico {
  width: 46px; height: 46px; display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255,107,26,.1); border: 1px solid rgba(255,107,26,.35);
}
.cs-ico svg { width: 24px; height: 24px; stroke: var(--accent); fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.cs-idx { font-family: var(--mono); font-size: 12px; color: var(--line-bd); letter-spacing: .05em; }
.card-service h3 { font-family: var(--disp); font-weight: 600; font-size: 18px; margin-bottom: 12px; }
.card-service ul { list-style: none; }
.card-service li { font-size: 14.5px; color: var(--muted); padding: 4px 0 4px 18px; position: relative; }
.card-service li::before { content: "+"; position: absolute; left: 2px; color: var(--cyan); font-family: var(--mono); font-size: 13px; }

/* ===== Portfolio ====================================================== */
.filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 30px; }
.filters button {
  font-family: var(--mono); font-size: 13px; letter-spacing: .04em;
  padding: 9px 16px; background: var(--panel); color: var(--muted);
  border: 1px solid var(--line); cursor: pointer;
}
.filters button::before { content: "["; color: var(--cyan); opacity: 0; margin-right: 0; transition: opacity .15s; }
.filters button::after { content: "]"; color: var(--cyan); opacity: 0; margin-left: 0; transition: opacity .15s; }
.filters button:hover { color: var(--text); border-color: var(--line-bd); }
.filters button:hover::before, .filters button:hover::after { opacity: .6; }
.filters button.active { background: var(--accent); color: #140b04; border-color: var(--accent); font-weight: 600; }
.filters button.active::before, .filters button.active::after { opacity: 1; }

.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 22px; }
.g-card { background: var(--panel); border: 1px solid var(--line); position: relative; }
.g-card:hover { border-color: var(--line-bd); transform: translateY(-3px); box-shadow: var(--sh); }
.g-media { position: relative; background: #07090e; aspect-ratio: 4/3; overflow: hidden; }
.g-media > .hb { position: absolute; inset: 8px; width: calc(100% - 16px); height: calc(100% - 16px); pointer-events: none; z-index: 2; }
.g-media img, .g-media video { width: 100%; height: 100%; object-fit: cover; cursor: pointer; }
.g-media img { filter: saturate(.92) contrast(1.02); }
.g-card:hover .g-media img { filter: saturate(1.1) contrast(1.05); }
.g-cap {
  padding: 12px 14px; font-size: 13.5px; color: var(--muted);
  display: flex; justify-content: space-between; gap: 8px; align-items: center;
  border-top: 1px solid var(--line);
  font-family: var(--mono); font-size: 12px; letter-spacing: .02em;
}
.g-cap .tag { color: var(--accent); font-weight: 600; }
.badge-before, .badge-after {
  position: absolute; top: 10px; left: 10px; z-index: 3;
  font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: .1em;
  padding: 4px 10px;
}
.badge-before { background: var(--ok); color: #04231a; }
.badge-after { background: var(--accent); color: #140b04; }
.vplay {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,.18); cursor: pointer;
}
.vplay span {
  width: 54px; height: 54px; display: flex; align-items: center; justify-content: center;
  background: rgba(10,14,19,.72); color: var(--accent); font-size: 16px;
  border: 1px solid rgba(255,180,0,.4);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}
.empty-hint {
  grid-column: 1 / -1; text-align: center; color: var(--muted);
  border: 1px dashed var(--line-bd); background: var(--panel); padding: 54px 22px;
}
.empty-hint code { background: var(--bg-2); padding: 2px 8px; border-radius: 4px; color: var(--cyan); font-family: var(--mono); font-size: 13px; }
.empty-hint a { color: var(--accent); }

/* ===== About ===== */
.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 44px; align-items: start; }
.about-text p { margin-bottom: 16px; color: #b9c5d6; }
.about-text b { color: var(--cyan); font-weight: 600; }
.about-text ul { list-style: none; }
.about-text li { padding: 7px 0 7px 26px; position: relative; color: var(--muted); font-size: 15px; }
.about-text li::before { content: "✓"; position: absolute; left: 0; color: var(--ok); font-weight: 700; }
.aside-card { background: rgba(9,15,24,.8); border: 1px solid var(--line-bd); padding: 4px 20px 20px; position: relative; }
.aside-head { display: flex; justify-content: space-between; align-items: center; font-family: var(--mono); font-size: 11px; letter-spacing: .14em; color: var(--cyan); padding: 14px 0 10px; border-bottom: 1px solid var(--line); margin-bottom: 6px; }
.row { display: flex; justify-content: space-between; gap: 16px; padding: 11px 0; border-bottom: 1px dashed rgba(45,59,82,.55); font-size: 13.5px; }
.row span { font-family: var(--mono); font-size: 11.5px; color: var(--muted); letter-spacing: .1em; }
.row b { color: var(--text); font-family: var(--mono); font-size: 12.5px; text-align: right; }

/* ===== Contacts ===== */
.contacts-grid { display: grid; grid-template-columns: 1fr .9fr; gap: 44px; align-items: start; }
.contact-lines { display: flex; flex-direction: column; gap: 22px; }
.cl { display: flex; gap: 16px; align-items: flex-start; }
.ci {
  width: 46px; height: 46px; flex-shrink: 0; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line-bd); background: var(--panel);
}
.ci svg { width: 21px; height: 21px; stroke: var(--accent); fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.cl a, .cl b { color: var(--text); font-size: 16.5px; font-weight: 600; text-decoration: none; }
.cl a:hover { color: var(--accent); }
.cl b { font-weight: 600; }
.cl .sub { display: block; font-size: 11px; color: var(--muted); font-family: var(--mono); letter-spacing: .09em; margin-top: 3px; }
.bank-block { max-width: 420px; }
.readout.mini { padding: 16px 18px 18px; }
.read-head { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; color: var(--cyan); display: flex; justify-content: space-between; align-items: center; padding-bottom: 10px; border-bottom: 1px solid var(--line); margin-bottom: 8px; }
.readout.mini .ro-line span { color: var(--accent); }
.readout.mini .ro-line b { letter-spacing: .04em; }

/* ===== Footer ===== */
footer { border-top: 1px solid var(--line); background: #070b10; padding: 20px 0 24px; }
.foot-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.foot-inner, .to-top { font-family: var(--mono); font-size: 11.5px; letter-spacing: .1em; color: var(--muted); }
.to-top { color: var(--accent); text-decoration: none; }
.to-top:hover { color: var(--text); }

/* ===== Lightbox ===== */
.lightbox { position: fixed; inset: 0; background: rgba(5,8,13,.95); z-index: 100; display: none; align-items: center; justify-content: center; padding: 24px; }
.lightbox.open { display: flex; }
.lightbox-media { max-width: 100%; max-height: 82vh; border-radius: 6px; border: 1px solid var(--line-bd); }
.lb-close { position: absolute; top: 18px; right: 24px; background: none; border: none; color: var(--muted); cursor: pointer; line-height: 1; }
.lb-close:hover { color: var(--accent); }
.lb-cap { color: var(--muted); text-align: center; margin-top: 16px; font-family: var(--mono); font-size: 13px; letter-spacing: .03em; }

/* ===== Reveal on scroll ===== */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ===== Media queries ===== */
@media (max-width: 900px) {
  .hero-cols { grid-template-columns: 1fr; gap: 36px; }
  .hero-side { justify-self: start; max-width: 460px; }
  .about-grid, .contacts-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav-inner { flex-wrap: wrap; row-gap: 10px; padding: 10px 16px; }
  .nav-links { order: 3; width: 100%; justify-content: space-between; }
  .nav-links a { padding: 6px 7px; font-size: 11.5px; }
  .nav-links a i { display: none; }
  .nav-phone { font-size: 13px; padding: 7px 10px; }
  .hero { padding: 52px 0 48px; }
  .hero-stats { gap: 22px; }
  .stat b { font-size: 21px; }
  .stat span { font-size: 9.5px; }
  .sec { padding: 54px 0; }
  .grid-services { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr; }
  .container, .nav-inner { padding-left: 16px; padding-right: 16px; }
}

/* reduced motion: respect user preference */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001s !important; transition-duration: .001s !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}