/* Лендинг демо-стенда (demo_landing.html). Отдельный файл: у основной CRM свой style.css,
   а здесь другой ритм и палитра логотипа Buildflow. Анимации — классы .reveal/.in
   и параллакс по data-depth / data-parallax (landing.js). */
:root {
  --navy: #0b1f3a; --navy-2: #112a4d; --blue: #0f57a8; --blue-2: #1d7ae0; --sky: #4fa3ff;
  --ink: #1b2634; --muted: #6b7a8c; --line: #e4e9f0; --bg: #f6f8fb; --white: #fff;
  --orange: #f07d1a; --green: #2e9e5b;
  --r: 16px; --shadow: 0 16px 48px rgba(11, 31, 58, .12);
  --font: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.landing { margin: 0; font-family: var(--font); color: var(--ink); background: var(--bg); line-height: 1.5; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; }
.wrap { width: min(1180px, 92vw); margin: 0 auto; }
h1, h2, h3 { margin: 0; letter-spacing: -.02em; }
.kicker { font-size: 12.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--blue-2); font-weight: 700; }

/* ---------- кнопки ---------- */
.lp-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 18px; border-radius: 12px; font-weight: 700; text-decoration: none; font-size: 14.5px; border: 1.5px solid transparent; transition: transform .18s ease, box-shadow .18s ease, background .18s; white-space: nowrap; }
.lp-btn.primary { background: linear-gradient(135deg, var(--blue-2), var(--blue)); color: #fff; box-shadow: 0 10px 24px rgba(15, 87, 168, .32); }
.lp-btn.primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(15, 87, 168, .4); }
.lp-btn.ghost { background: transparent; color: var(--blue); border-color: rgba(15, 87, 168, .35); }
.lp-btn.ghost:hover { background: rgba(15, 87, 168, .06); transform: translateY(-2px); }
.lp-btn.ghost.light { color: #fff; border-color: rgba(255,255,255,.5); }
.lp-btn.ghost.light:hover { background: rgba(255,255,255,.1); }
.lp-btn.big { padding: 14px 24px; font-size: 16px; border-radius: 14px; }

/* ---------- шапка ---------- */
.lp-head { position: fixed; inset: 0 0 auto 0; z-index: 50; display: flex; align-items: center; gap: 28px; padding: 14px 4vw; transition: background .3s, box-shadow .3s, padding .3s; }
.lp-head.scrolled { background: rgba(255,255,255,.86); backdrop-filter: blur(10px); box-shadow: 0 6px 24px rgba(11,31,58,.08); padding: 9px 4vw; }
.lp-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.lp-brand-icon { height: 36px; width: 36px; filter: drop-shadow(0 4px 10px rgba(15,87,168,.35)); transition: transform .4s; }
.lp-brand:hover .lp-brand-icon { transform: rotate(-8deg) scale(1.06); }
.lp-brand-word { height: 24px; width: auto; filter: brightness(0) invert(1); transition: filter .3s; }
.lp-head.scrolled .lp-brand-word { filter: none; }
.lp-nav { display: flex; gap: 22px; margin-left: 10px; }
.lp-nav a { color: rgba(255,255,255,.85); text-decoration: none; font-weight: 600; font-size: 14px; transition: color .3s; position: relative; white-space: nowrap; }
.lp-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -4px; height: 2px; background: var(--sky); transition: right .25s; }
.lp-nav a:hover::after { right: 0; }
.lp-head.scrolled .lp-nav a { color: var(--ink); }
.lp-actions { margin-left: auto; display: flex; gap: 10px; align-items: center; }
.lp-lang { display: flex; gap: 2px; padding: 3px; border-radius: 10px; background: rgba(255,255,255,.14); margin-right: 6px; }
.lp-lang a { padding: 5px 9px; border-radius: 8px; font-size: 12.5px; font-weight: 700; text-decoration: none; color: rgba(255,255,255,.8); letter-spacing: .04em; transition: background .2s, color .2s; }
.lp-lang a.on { background: #fff; color: var(--navy); }
.lp-head.scrolled .lp-lang { background: #e9eef5; }
.lp-head.scrolled .lp-lang a { color: var(--muted); }
.lp-head.scrolled .lp-lang a.on { background: var(--navy); color: #fff; }
.foot-lang { display: inline-flex; gap: 8px; margin-left: 6px; }
.foot-lang a { color: var(--muted); font-size: 12.5px; letter-spacing: .06em; }
.foot-lang a.on { color: var(--blue); }
.lp-head:not(.scrolled) .lp-actions .ghost { color: #fff; border-color: rgba(255,255,255,.5); }
.lp-burger { display: none; margin-left: auto; background: none; border: 0; width: 40px; height: 40px; cursor: pointer; }
.lp-burger i { display: block; height: 2px; background: #fff; margin: 6px 8px; border-radius: 2px; transition: background .3s; }
.lp-head.scrolled .lp-burger i { background: var(--ink); }

/* ---------- hero ---------- */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; padding: 120px 0 80px; color: #fff; overflow: hidden;
  background: radial-gradient(1200px 700px at 80% 10%, #1a63c4 0%, transparent 60%), linear-gradient(160deg, var(--navy) 0%, #0e3f7f 55%, #0f57a8 100%); }
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.blob { position: absolute; border-radius: 50%; filter: blur(60px); opacity: .55; will-change: transform; }
.blob.b1 { width: 520px; height: 520px; left: -140px; top: 10%; background: #1d7ae0; }
.blob.b2 { width: 420px; height: 420px; right: 8%; top: -120px; background: #4fa3ff; opacity: .4; }
.blob.b3 { width: 380px; height: 380px; right: 30%; bottom: -160px; background: #f07d1a; opacity: .22; }
.grid { position: absolute; inset: -20% 0 0 0; background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: 64px 64px; mask-image: radial-gradient(60% 60% at 50% 40%, #000 30%, transparent 100%); }
.hero-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; position: relative; }
.hero .kicker { color: #8fc1ff; }
.hero h1 { font-size: clamp(38px, 5vw, 64px); line-height: 1.05; font-weight: 800; margin: 14px 0 20px; }
.hero h1 span { background: linear-gradient(90deg, #7cc0ff, #ffffff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { font-size: clamp(16px, 1.4vw, 19px); line-height: 1.55; color: rgba(255,255,255,.88); max-width: 620px; margin: 0 0 28px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-note { margin-top: 18px; font-size: 13px; color: rgba(255,255,255,.62); }
.hero-art { position: relative; height: 520px; }
.art-stage { position: absolute; inset: 0; display: grid; place-items: center; perspective: 900px; }
.art-icon { width: min(360px, 70%); filter: drop-shadow(0 30px 60px rgba(0,0,0,.45)); animation: floatY 7s ease-in-out infinite; will-change: transform; transform-style: preserve-3d; }
.ring { position: absolute; border-radius: 50%; border: 1px solid rgba(255,255,255,.18); animation: spin 40s linear infinite; }
.ring.r1 { width: 460px; height: 460px; border-style: dashed; }
.ring.r2 { width: 600px; height: 600px; opacity: .6; animation-direction: reverse; animation-duration: 70s; }
.chip { position: absolute; background: rgba(255,255,255,.96); color: var(--ink); border-radius: 14px; padding: 10px 14px; box-shadow: 0 14px 34px rgba(0,0,0,.28); display: grid; gap: 1px; min-width: 150px; will-change: transform; animation: floatY 6s ease-in-out infinite; }
.chip b { font-size: 18px; color: var(--blue); }
.chip span { font-size: 12px; color: var(--muted); }
.chip.c1 { left: 2%; top: 12%; animation-delay: -1s; }
.chip.c2 { right: 0; top: 24%; animation-delay: -3s; }
.chip.c3 { left: 6%; bottom: 14%; animation-delay: -2s; }
.chip.c4 { right: 6%; bottom: 8%; animation-delay: -4.5s; }
.chip.c1 b { color: var(--green); } .chip.c2 b { color: var(--orange); }
.scroll-hint { position: absolute; left: 50%; bottom: 26px; width: 26px; height: 42px; margin-left: -13px; border: 2px solid rgba(255,255,255,.5); border-radius: 14px; }
.scroll-hint i { position: absolute; left: 50%; top: 8px; width: 4px; height: 8px; margin-left: -2px; border-radius: 2px; background: #fff; animation: wheel 1.8s ease-in-out infinite; }

/* ---------- бегущая строка ---------- */
.marquee { background: var(--navy); color: rgba(255,255,255,.8); overflow: hidden; padding: 14px 0; font-size: 13.5px; letter-spacing: .06em; text-transform: uppercase; border-top: 1px solid rgba(255,255,255,.08); }
.marquee-track { display: flex; gap: 48px; width: max-content; animation: marquee 40s linear infinite; }
.marquee-track span::before { content: "◆"; color: var(--sky); margin-right: 14px; font-size: 9px; vertical-align: middle; }

/* ---------- секции ---------- */
.section { padding: 96px 0; }
.sec-head { max-width: 760px; margin-bottom: 44px; }
.sec-head h2 { font-size: clamp(28px, 3vw, 40px); font-weight: 800; margin: 10px 0 12px; color: var(--navy); }
.sec-head p { color: var(--muted); font-size: 17px; margin: 0; }
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 24px 22px 22px; transition: transform .25s ease, box-shadow .25s ease, border-color .25s; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.ico { width: 46px; height: 46px; border-radius: 12px; background: linear-gradient(135deg, #e8f1ff, #d6e7ff); display: grid; place-items: center; margin-bottom: 16px; }
.ico svg { width: 24px; height: 24px; fill: none; stroke: var(--blue); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.card h3 { font-size: 17px; margin-bottom: 8px; color: var(--navy); }
.card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.55; }

/* меньше человеческого фактора */
.hf { padding: 96px 0; color: #fff; background: linear-gradient(160deg, var(--navy) 0%, #0e3f7f 60%, #0f57a8 100%); position: relative; overflow: hidden; }
.hf::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px); background-size: 64px 64px; mask-image: radial-gradient(70% 70% at 50% 50%, #000 40%, transparent 100%); }
.hf .wrap { position: relative; }
.sec-head.light h2 { color: #fff; }
.sec-head.light .kicker { color: #8fc1ff; }
.hf-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.hf-item { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16); border-radius: var(--r); padding: 22px 22px 20px; transition: transform .25s, background .25s; }
.hf-item:hover { transform: translateY(-6px); background: rgba(255,255,255,.13); }
.hf-item b { display: block; font-size: 17px; margin-bottom: 8px; }
.hf-item b::before { content: ""; display: block; width: 34px; height: 3px; border-radius: 2px; background: var(--orange); margin-bottom: 14px; }
.hf-item p { margin: 0; font-size: 14px; line-height: 1.55; color: rgba(255,255,255,.85); }
.foot-brand { display: grid; gap: 6px; }
.foot-tagline { font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }

/* шаги */
.how { background: #fff; }
.steps { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; padding-top: 26px; }
.steps-line { position: absolute; left: 6%; right: 6%; top: 46px; height: 3px; background: var(--line); border-radius: 2px; overflow: hidden; }
.steps-line i { display: block; height: 100%; width: var(--p, 0%); background: linear-gradient(90deg, var(--blue-2), var(--sky)); transition: width .15s linear; }
.step { text-align: center; padding: 0 8px; }
.step .num { width: 42px; height: 42px; margin: 0 auto 16px; border-radius: 50%; background: #fff; border: 3px solid var(--blue-2); color: var(--blue); font-weight: 800; display: grid; place-items: center; position: relative; z-index: 1; }
.step h3 { font-size: 17px; color: var(--navy); margin-bottom: 8px; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }

/* цифры + мок */
.numbers { background: linear-gradient(180deg, var(--bg), #eef3fa); overflow: hidden; }
.num-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: center; }
.num-text h2 { font-size: clamp(26px, 2.8vw, 36px); font-weight: 800; margin: 10px 0 12px; color: var(--navy); }
.num-text p { color: var(--muted); font-size: 16.5px; }
.ticks { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 10px; }
.ticks li { padding-left: 28px; position: relative; font-size: 15px; }
.ticks li::before { content: "✓"; position: absolute; left: 0; top: 0; width: 20px; height: 20px; border-radius: 50%; background: #e2f4e9; color: var(--green); font-size: 12px; font-weight: 800; display: grid; place-items: center; }
.mock { background: #fff; border-radius: 18px; box-shadow: 0 30px 80px rgba(11,31,58,.18); padding: 18px 20px 22px; transform-style: preserve-3d; will-change: transform; border: 1px solid var(--line); }
.mock-top { display: flex; align-items: center; gap: 6px; margin-bottom: 16px; }
.mock-top i { width: 10px; height: 10px; border-radius: 50%; background: #e3e8ee; }
.mock-top span { margin-left: auto; font-size: 12px; color: var(--muted); background: var(--bg); padding: 3px 10px; border-radius: 8px; }
.mock-tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.tile { background: var(--bg); border-radius: 12px; padding: 12px; }
.tile small { display: block; color: var(--muted); font-size: 11.5px; }
.tile b { display: block; font-size: 17px; color: var(--navy); margin: 4px 0 2px; white-space: nowrap; }
.tile em { font-style: normal; font-size: 11.5px; font-weight: 700; }
.tile em.up { color: var(--green); } .tile em.down { color: var(--orange); }
.mock-chart { display: flex; align-items: flex-end; gap: 8px; height: 120px; margin: 18px 0 14px; padding: 0 4px; }
.mock-chart i { flex: 1; height: calc(var(--h) * 100%); border-radius: 5px 5px 0 0; background: linear-gradient(180deg, var(--sky), var(--blue)); transform: scaleY(0); transform-origin: bottom; transition: transform .8s cubic-bezier(.2,.8,.2,1); }
.mock-chart i:nth-child(n) { transition-delay: calc(var(--n, 0) * .05s); }
.mock.in .mock-chart i { transform: scaleY(1); }
.mock-rows { display: grid; gap: 8px; }
.mock-rows div { display: grid; grid-template-columns: 110px 1fr 48px; align-items: center; gap: 10px; font-size: 13px; }
.mock-rows i { display: block; height: 8px; border-radius: 4px; background: linear-gradient(90deg, var(--blue-2), var(--sky)); width: 0; transition: width 1s ease .3s; max-width: 100%; }
.mock.in .mock-rows i { width: var(--w); }
.mock-rows b { text-align: right; color: var(--navy); }

/* роли */
.roles { background: #fff; }
.roles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.role { border-radius: var(--r); padding: 26px 24px; background: linear-gradient(160deg, var(--navy), #143d78); color: #fff; }
.role:nth-child(2) { background: linear-gradient(160deg, #0f57a8, #1d7ae0); }
.role:nth-child(3) { background: linear-gradient(160deg, #1d7ae0, #4fa3ff); }
.role:nth-child(4) { background: linear-gradient(160deg, #143d78, #0f57a8); }
.role:nth-child(5) { background: linear-gradient(160deg, #0f57a8, #2a8ae8); }
.role:nth-child(6) { background: linear-gradient(160deg, #f07d1a, #f4a259); }
.role h3 { font-size: 19px; margin-bottom: 8px; }
.role p { margin: 0; color: rgba(255,255,255,.88); font-size: 14.5px; }

/* тарифы: тумблер периода */
.billing { position: relative; display: inline-grid; grid-template-columns: repeat(3, auto); gap: 4px; padding: 5px; margin: -14px 0 30px; border-radius: 14px; background: #e9eef5; border: 1px solid var(--line); }
.billing button { position: relative; z-index: 1; background: none; border: 0; cursor: pointer; padding: 9px 18px; border-radius: 10px; font: inherit; font-weight: 700; font-size: 14px; color: var(--muted); transition: color .25s; white-space: nowrap; }
.billing button.on { color: var(--navy); }
.billing button em { font-style: normal; font-size: 11.5px; margin-left: 6px; padding: 1px 6px; border-radius: 6px; background: #e2f4e9; color: var(--green); font-weight: 700; }
.billing-slider { position: absolute; top: 5px; bottom: 5px; left: 5px; width: 0; border-radius: 10px; background: #fff; box-shadow: 0 4px 14px rgba(11,31,58,.14); transition: left .3s cubic-bezier(.2,.8,.2,1), width .3s cubic-bezier(.2,.8,.2,1); }
.price .amount { display: inline-block; min-width: 3ch; transition: transform .2s; }
.price .amount.bump { transform: translateY(-4px); }
.price-note { font-size: 13px; color: var(--muted); margin: -6px 0 14px; min-height: 18px; }
.price-note b { color: var(--green); font-weight: 700; }

/* тарифы */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: stretch; }
.plan { background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 26px 24px; display: flex; flex-direction: column; position: relative; transition: transform .25s, box-shadow .25s; }
.plan:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.plan.hot { border-color: var(--blue-2); box-shadow: 0 20px 50px rgba(15,87,168,.16); }
.plan .badge { position: absolute; top: -12px; left: 24px; background: var(--orange); color: #fff; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 8px; }
.pname { font-weight: 700; color: var(--muted); letter-spacing: .06em; text-transform: uppercase; font-size: 12.5px; }
.price { font-size: 30px; font-weight: 800; color: var(--navy); margin: 8px 0 6px; }
.price span { font-size: 14px; color: var(--muted); font-weight: 600; }
.price span.amount { font-size: inherit; color: inherit; font-weight: inherit; }
.plan ul { list-style: none; padding: 0; margin: 0 0 22px; display: grid; gap: 8px; font-size: 14.5px; }
.plan li::before { content: "✓"; color: var(--green); font-weight: 800; margin-right: 8px; }
.plan .lp-btn { margin-top: auto; }

/* финальный призыв */
.final { position: relative; overflow: hidden; padding: 110px 0; color: #fff; text-align: center; background: linear-gradient(160deg, var(--navy) 0%, #0f57a8 100%); }
.final-mark { position: absolute; right: -80px; top: -60px; width: 520px; opacity: .14; filter: blur(1px); will-change: transform; pointer-events: none; }
.final h2 { font-size: clamp(28px, 3.4vw, 44px); font-weight: 800; }
.final p { color: rgba(255,255,255,.8); font-size: 17px; margin: 12px 0 26px; }
.final .hero-cta { justify-content: center; }

/* подвал */
.lp-foot { background: #fff; border-top: 1px solid var(--line); padding: 40px 0 34px; }
.foot-in { display: grid; grid-template-columns: 220px 1fr; gap: 14px 40px; align-items: center; }
.foot-logo { width: 190px; }
.foot-links { display: flex; gap: 22px; flex-wrap: wrap; font-size: 14px; }
.foot-links a { color: var(--ink); text-decoration: none; font-weight: 600; }
.foot-links a:hover { color: var(--blue); }
.foot-copy { grid-column: 1 / -1; color: var(--muted); font-size: 13px; }

/* ---------- анимации появления ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.8,.2,1); transition-delay: calc(var(--i, 0) * .09s); }
.reveal.d1 { transition-delay: .12s; } .reveal.d2 { transition-delay: .24s; } .reveal.d3 { transition-delay: .36s; } .reveal.d4 { transition-delay: .48s; }
.reveal.in { opacity: 1; transform: none; }

@keyframes floatY { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes wheel { 0% { opacity: 1; transform: translateY(0); } 70% { opacity: 0; transform: translateY(14px); } 100% { opacity: 0; } }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- адаптив ---------- */
@media (max-width: 1024px) {
  .cards, .hf-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); } .steps-line { display: none; }
  .num-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-art { height: 420px; }
  .ring.r2 { display: none; }
}
@media (max-width: 760px) {
  .lp-nav, .lp-actions { display: none; }
  .lp-burger { display: block; }
  .lp-head.open .lp-lang { margin: 0 0 6px; align-self: flex-start; background: #e9eef5; }
  .lp-head.open .lp-lang a { color: var(--muted); } .lp-head.open .lp-lang a.on { background: var(--navy); color: #fff; }
  .lp-head.open .lp-nav, .lp-head.open .lp-actions { display: flex; flex-direction: column; position: absolute; left: 0; right: 0; background: #fff; padding: 12px 6vw 18px; gap: 14px; }
  .lp-head.open .lp-nav { top: 62px; } .lp-head.open .lp-actions { top: 210px; box-shadow: 0 12px 30px rgba(11,31,58,.14); }
  .lp-head.open .lp-nav a, .lp-head.open .lp-actions .ghost { color: var(--ink); border-color: var(--line); }
  .lp-head.open .lp-brand-word { filter: none; }
  .section { padding: 64px 0; }
  .cards, .roles-grid, .plans, .steps, .hf-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 96px; }
  .hero-art { height: 340px; } .chip { min-width: 120px; padding: 8px 10px; } .chip b { font-size: 15px; }
  .mock-tiles { grid-template-columns: repeat(2, 1fr); }
  .foot-in { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .art-icon, .chip, .ring, .scroll-hint i, .marquee-track { animation: none !important; }
  .mock-chart i { transform: none; } .mock-rows i { width: var(--w); }
}