/* ============================================================
   MOTIØN — ультра-современный сервис фото → видео
   Дизайн-система
============================================================ */

:root {
  /* палитра */
  --bg:        #06060a;
  --bg-2:      #0b0b14;
  --surface:   rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.07);
  --border:    rgba(255, 255, 255, 0.09);
  --border-2:  rgba(255, 255, 255, 0.16);
  --txt:       #f4f4fb;
  --txt-dim:   #9a9ab0;
  --txt-mute:  #5c5c74;

  /* акценты */
  --v1: #7c5cff;   /* фиолет */
  --v2: #d94fff;   /* маджента */
  --v3: #29d3ff;   /* циан */
  --v4: #ff7a45;   /* оранж */

  --grad-main: linear-gradient(115deg, #7c5cff 0%, #d94fff 50%, #29d3ff 100%);
  --grad-warm: linear-gradient(115deg, #ff7a45 0%, #d94fff 100%);
  --grad-soft: linear-gradient(180deg, rgba(124,92,255,.16), rgba(41,211,255,.05));

  --glow: 0 0 60px rgba(124, 92, 255, .35);
  --shadow: 0 24px 70px -20px rgba(0, 0, 0, .8);

  --radius: 22px;
  --radius-sm: 14px;
  --maxw: 1200px;

  --font: "Space Grotesk", "Inter", system-ui, -apple-system, sans-serif;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--txt);
  line-height: 1.55;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* фоновая атмосфера ------------------------------------------------ */
.bg-fx {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  background:
    radial-gradient(900px 600px at 15% -10%, rgba(124,92,255,.20), transparent 60%),
    radial-gradient(800px 700px at 90% 0%, rgba(41,211,255,.14), transparent 55%),
    radial-gradient(700px 600px at 60% 110%, rgba(217,79,255,.12), transparent 55%),
    var(--bg);
}
.bg-fx::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E");
  opacity: .04;
  mix-blend-mode: overlay;
}
.orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(70px);
  z-index: -1;
  opacity: .5;
  pointer-events: none;
}
.orb.a { width: 420px; height: 420px; background: var(--v1); top: -120px; left: -80px; animation: float 14s var(--ease) infinite; }
.orb.b { width: 380px; height: 380px; background: var(--v3); bottom: -140px; right: -60px; animation: float 18s var(--ease) infinite reverse; }

@keyframes float {
  0%,100% { transform: translate(0,0) scale(1); }
  50%     { transform: translate(40px,-30px) scale(1.1); }
}

/* контейнер -------------------------------------------------------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* навигация -------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  transition: background .4s var(--ease), backdrop-filter .4s var(--ease), border-color .4s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(6,6,10,.72);
  backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.logo {
  display: flex; align-items: center; gap: 11px;
  font-weight: 700; font-size: 21px; letter-spacing: -.5px;
}
.logo .mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: var(--grad-main);
  display: grid; place-items: center;
  box-shadow: var(--glow);
  position: relative; overflow: hidden;
}
.logo .mark::before {
  content: "";
  width: 0; height: 0;
  border-left: 11px solid #fff;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  margin-left: 3px;
}
.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a.link { color: var(--txt-dim); font-size: 15px; transition: color .25s; }
.nav-links a.link:hover { color: var(--txt); }
.nav-actions { display: flex; align-items: center; gap: 14px; }

/* кнопки ----------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 24px;
  border-radius: 100px;
  font-weight: 600; font-size: 15px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), background .3s;
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn-ghost { color: var(--txt-dim); }
.btn-ghost:hover { color: var(--txt); background: var(--surface); }
.btn-line {
  border: 1px solid var(--border-2); color: var(--txt);
}
.btn-line:hover { background: var(--surface-2); border-color: var(--txt-mute); }
.btn-primary {
  background: var(--grad-main);
  color: #fff;
  box-shadow: 0 10px 34px -8px rgba(124,92,255,.6);
  background-size: 180% 180%;
  animation: shift 6s ease infinite;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 44px -8px rgba(124,92,255,.75); }
@keyframes shift { 0%,100%{background-position:0% 50%} 50%{background-position:100% 50%} }
.btn-lg { padding: 17px 34px; font-size: 16.5px; }
.btn-block { width: 100%; }

/* hero ------------------------------------------------------------- */
.hero {
  position: relative;
  padding: 190px 0 90px;
  text-align: center;
}
.badge {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 8px 16px;
  border-radius: 100px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 13.5px; color: var(--txt-dim);
  margin-bottom: 30px;
  backdrop-filter: blur(10px);
}
.badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--v3); box-shadow: 0 0 10px var(--v3); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.35} }

.hero h1 {
  font-size: clamp(42px, 7vw, 82px);
  line-height: 1.02;
  font-weight: 700;
  letter-spacing: -2.5px;
  margin-bottom: 26px;
}
.hero h1 .grad {
  background: var(--grad-main);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  background-size: 200% auto;
  animation: shift 5s ease infinite;
}
.hero p.lead {
  font-size: clamp(17px, 2vw, 20px);
  color: var(--txt-dim);
  max-width: 620px;
  margin: 0 auto 40px;
}
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-note { margin-top: 22px; font-size: 13.5px; color: var(--txt-mute); }

/* dropzone превью в hero ------------------------------------------ */
.hero-stage {
  margin: 68px auto 0;
  max-width: 940px;
  border-radius: 28px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  padding: 14px;
  box-shadow: var(--shadow);
  position: relative;
}
.hero-stage::before {
  content: "";
  position: absolute; inset: -1px;
  border-radius: 29px;
  padding: 1px;
  background: var(--grad-main);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: .5;
}
.stage-inner {
  border-radius: 18px;
  overflow: hidden;
  background: #000;
  aspect-ratio: 16/9;
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.stage-side { position: relative; overflow: hidden; }
.stage-side .tag {
  position: absolute; top: 14px; left: 14px; z-index: 3;
  font-size: 11px; letter-spacing: 1px; text-transform: uppercase;
  padding: 6px 12px; border-radius: 100px;
  background: rgba(0,0,0,.5); backdrop-filter: blur(6px);
  border: 1px solid var(--border);
}
.stage-side .ph {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
}
.stage-side.before .ph { filter: grayscale(.4) contrast(1.05); }
.stage-side.after  .ph { animation: kenburns 12s var(--ease) infinite alternate; }
.stage-side.after::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(120deg, transparent 40%, rgba(124,92,255,.25), transparent 60%);
  background-size: 200% 100%;
  animation: sweep 3.5s linear infinite;
}
@keyframes kenburns { from{transform:scale(1)} to{transform:scale(1.12)} }
@keyframes sweep { from{background-position:200% 0} to{background-position:-60% 0} }
.stage-divider {
  position: absolute; top: 0; bottom: 0; left: 50%; width: 2px;
  background: var(--grad-main); z-index: 4;
  box-shadow: 0 0 22px var(--v1);
}

/* полоса лого ------------------------------------------------------ */
.marquee {
  margin: 70px 0 20px;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee-row { display: flex; gap: 60px; width: max-content; animation: scroll 26s linear infinite; }
.marquee-row span { color: var(--txt-mute); font-size: 18px; font-weight: 600; letter-spacing: .5px; white-space: nowrap; opacity: .7; }
@keyframes scroll { to { transform: translateX(-50%); } }

/* секции ----------------------------------------------------------- */
section { position: relative; }
.section-pad { padding: 90px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.eyebrow {
  font-size: 13px; letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--v3); font-weight: 600; margin-bottom: 16px;
}
.section-head h2 {
  font-size: clamp(30px, 4.5vw, 48px);
  letter-spacing: -1.5px; line-height: 1.08; font-weight: 700;
  margin-bottom: 16px;
}
.section-head p { color: var(--txt-dim); font-size: 17px; }

/* галерея примеров ------------------------------------------------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 3/4;
  border: 1px solid var(--border);
  cursor: pointer;
  transform: translateZ(0);
  transition: transform .5s var(--ease), box-shadow .5s var(--ease), border-color .4s;
  background: #111;
}
.card:hover { transform: translateY(-8px) scale(1.015); box-shadow: var(--shadow); border-color: var(--border-2); }
.card .thumb {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  transition: transform 1.4s var(--ease), filter .5s;
}
.card:hover .thumb { transform: scale(1.1); }
.card::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(0,0,0,.85));
}
.card .meta {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 2;
  padding: 20px;
  transform: translateY(6px);
  transition: transform .5s var(--ease);
}
.card:hover .meta { transform: translateY(0); }
.card .meta .t { font-weight: 600; font-size: 17px; margin-bottom: 4px; }
.card .meta .s { font-size: 13px; color: var(--txt-dim); }
.card .play {
  position: absolute; top: 50%; left: 50%; z-index: 3;
  width: 62px; height: 62px; border-radius: 50%;
  background: rgba(255,255,255,.12);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.25);
  display: grid; place-items: center;
  transform: translate(-50%,-50%) scale(.8);
  opacity: 0;
  transition: transform .45s var(--ease), opacity .45s;
}
.card:hover .play { transform: translate(-50%,-50%) scale(1); opacity: 1; }
.card .play::before {
  content: ""; width: 0; height: 0;
  border-left: 15px solid #fff;
  border-top: 9px solid transparent;
  border-bottom: 9px solid transparent;
  margin-left: 4px;
}
.card .live-badge {
  position: absolute; top: 14px; right: 14px; z-index: 3;
  font-size: 11px; padding: 5px 11px; border-radius: 100px;
  background: rgba(0,0,0,.55); backdrop-filter: blur(6px);
  border: 1px solid var(--border); color: var(--txt);
  display: flex; align-items: center; gap: 6px;
}
.card .live-badge i { width: 6px; height: 6px; border-radius: 50%; background: var(--v4); box-shadow: 0 0 8px var(--v4); }

/* фильтры ----------------------------------------------------------- */
.filters { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.chip {
  padding: 10px 20px; border-radius: 100px;
  border: 1px solid var(--border); color: var(--txt-dim);
  font-size: 14px; transition: all .3s var(--ease);
}
.chip:hover { color: var(--txt); border-color: var(--border-2); }
.chip.active { background: var(--txt); color: #000; border-color: var(--txt); font-weight: 600; }

/* как работает ----------------------------------------------------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.step {
  padding: 34px 28px;
  border-radius: var(--radius);
  background: var(--grad-soft);
  border: 1px solid var(--border);
  position: relative;
  transition: transform .4s var(--ease), border-color .4s;
}
.step:hover { transform: translateY(-6px); border-color: var(--border-2); }
.step .num {
  font-size: 15px; font-weight: 700;
  width: 44px; height: 44px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--grad-main); color: #fff;
  margin-bottom: 22px; box-shadow: var(--glow);
}
.step h3 { font-size: 21px; margin-bottom: 10px; letter-spacing: -.5px; }
.step p { color: var(--txt-dim); font-size: 15px; }

/* фичи ------------------------------------------------------------- */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.feature {
  padding: 28px 24px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: all .35s var(--ease);
}
.feature:hover { background: var(--surface-2); transform: translateY(-4px); }
.feature .ic { font-size: 26px; margin-bottom: 16px; }
.feature h4 { font-size: 16px; margin-bottom: 7px; }
.feature p { font-size: 13.5px; color: var(--txt-dim); }

/* CTA -------------------------------------------------------------- */
.cta-band {
  margin: 40px 0 90px;
  border-radius: 30px;
  padding: 70px 40px;
  text-align: center;
  background: var(--grad-soft);
  border: 1px solid var(--border);
  position: relative; overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute; width: 500px; height: 500px;
  background: var(--grad-main); border-radius: 50%;
  filter: blur(120px); opacity: .3;
  top: -200px; left: 50%; transform: translateX(-50%);
}
.cta-band h2 { font-size: clamp(30px, 5vw, 52px); letter-spacing: -1.5px; margin-bottom: 18px; position: relative; }
.cta-band p { color: var(--txt-dim); font-size: 18px; margin-bottom: 34px; position: relative; }

/* footer ----------------------------------------------------------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 56px 0 40px;
}
.footer-top { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; margin-bottom: 44px; }
.footer-brand { max-width: 300px; }
.footer-brand p { color: var(--txt-dim); font-size: 14px; margin-top: 16px; }
.footer-cols { display: flex; gap: 64px; flex-wrap: wrap; }
.footer-col h5 { font-size: 13px; text-transform: uppercase; letter-spacing: 1px; color: var(--txt-mute); margin-bottom: 16px; }
.footer-col a { display: block; color: var(--txt-dim); font-size: 14.5px; margin-bottom: 11px; transition: color .25s; }
.footer-col a:hover { color: var(--txt); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 28px; border-top: 1px solid var(--border); color: var(--txt-mute); font-size: 13.5px; flex-wrap: wrap; gap: 14px; }

/* ============================================================
   AUTH — страницы входа/регистрации
============================================================ */
.auth-wrap {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.auth-visual {
  position: relative;
  overflow: hidden;
  padding: 56px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-right: 1px solid var(--border);
}
.auth-visual::before {
  content: "";
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(600px 500px at 20% 20%, rgba(124,92,255,.4), transparent 60%),
    radial-gradient(500px 500px at 90% 90%, rgba(41,211,255,.3), transparent 55%),
    linear-gradient(160deg, #0d0a1f, #060610);
}
.auth-visual > * { position: relative; z-index: 1; }
.auth-visual .av-quote { font-size: 30px; font-weight: 600; letter-spacing: -1px; line-height: 1.25; max-width: 440px; }
.auth-visual .av-quote span { background: var(--grad-main); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.auth-visual .av-foot { display: flex; align-items: center; gap: 14px; }
.auth-visual .av-foot .ava { width: 46px; height: 46px; border-radius: 50%; background: var(--grad-warm); }
.auth-visual .av-foot .n { font-weight: 600; }
.auth-visual .av-foot .r { font-size: 13px; color: var(--txt-dim); }

.av-preview {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 30px 0;
}
.av-preview .pv { border-radius: 14px; aspect-ratio: 3/4; background-size: cover; background-position: center; border: 1px solid var(--border); }
.av-preview .pv:nth-child(2){ transform: translateY(-18px); }

.auth-form-side {
  display: flex; align-items: center; justify-content: center;
  padding: 40px 24px;
}
.auth-card { width: 100%; max-width: 420px; }
.auth-card .logo { margin-bottom: 40px; }
.auth-card h1 { font-size: 34px; letter-spacing: -1px; margin-bottom: 8px; }
.auth-card .sub { color: var(--txt-dim); margin-bottom: 32px; font-size: 15px; }
.auth-card .sub a { color: var(--v3); }

.social-row { display: flex; gap: 12px; margin-bottom: 26px; }
.social-btn {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 13px; border-radius: 12px;
  border: 1px solid var(--border-2); color: var(--txt);
  font-size: 14.5px; font-weight: 500; transition: all .3s var(--ease);
}
.social-btn:hover { background: var(--surface-2); transform: translateY(-2px); }

.divider { display: flex; align-items: center; gap: 16px; margin: 26px 0; color: var(--txt-mute); font-size: 13px; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }

.field { margin-bottom: 18px; }
.field label { display: block; font-size: 13.5px; color: var(--txt-dim); margin-bottom: 8px; }
.field .input-wrap { position: relative; }
.field input {
  width: 100%;
  padding: 15px 16px;
  border-radius: 13px;
  background: var(--surface);
  border: 1px solid var(--border-2);
  color: var(--txt);
  font-size: 15px; font-family: inherit;
  transition: border-color .3s, background .3s, box-shadow .3s;
}
.field input::placeholder { color: var(--txt-mute); }
.field input:focus {
  outline: none;
  border-color: var(--v1);
  background: var(--surface-2);
  box-shadow: 0 0 0 4px rgba(124,92,255,.15);
}
.field .toggle-eye {
  position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
  color: var(--txt-mute); font-size: 18px; cursor: pointer; transition: color .25s;
}
.field .toggle-eye:hover { color: var(--txt); }

.form-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; font-size: 14px; }
.checkbox { display: flex; align-items: center; gap: 9px; color: var(--txt-dim); cursor: pointer; user-select: none; }
.checkbox input { width: 17px; height: 17px; accent-color: var(--v1); }
.form-row a { color: var(--v3); }

.strength { height: 5px; border-radius: 100px; background: var(--surface-2); overflow: hidden; margin-top: 10px; }
.strength i { display: block; height: 100%; width: 0; border-radius: 100px; background: var(--grad-warm); transition: width .4s var(--ease), background .4s; }

.auth-alt { text-align: center; margin-top: 26px; color: var(--txt-dim); font-size: 14.5px; }
.auth-alt a { color: var(--v3); font-weight: 600; }

.back-home {
  position: fixed; top: 26px; left: 26px; z-index: 10;
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--txt-dim); font-size: 14px; padding: 10px 16px;
  border-radius: 100px; border: 1px solid var(--border);
  background: rgba(6,6,10,.5); backdrop-filter: blur(10px);
  transition: all .3s var(--ease);
}
.back-home:hover { color: var(--txt); border-color: var(--border-2); }

/* появление на скролле --------------------------------------------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* адаптив ---------------------------------------------------------- */
@media (max-width: 980px) {
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .auth-wrap { grid-template-columns: 1fr; }
  .auth-visual { display: none; }
  .nav-links { display: none; }
}
@media (max-width: 560px) {
  .gallery { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .nav { padding: 14px 18px; }
  .hero { padding: 150px 0 60px; }
  .stage-inner { grid-template-columns: 1fr; }
  .stage-side.before { display: none; }
  .footer-top { flex-direction: column; }
}