/* Drone3D Studio by Presnyakov Productions: white page, light sage bands (the landscape green, lightened),
   Presnyakov purple for actions, magenta for the one highlight, mono flight-log labels */
:root {
  --paper: #ffffff;
  --paper-2: #f1f5ef;
  --ink: #1a1a1a;
  --ink-2: #565e58;
  --rule: #dde4da;
  --accent: #5b2d8e;
  --accent-ink: #ffffff;
  --signal: #d4288a;
  --font-display: "Archivo", "Arial Narrow", system-ui, sans-serif;
  --font-body: "Public Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --step--1: 0.8125rem;
  --step-0: 1rem;
  --step-1: 1.25rem;
  --step-2: 1.6rem;
  --step-3: clamp(1.9rem, 1.4rem + 2vw, 2.6rem);
  --step-4: clamp(2.4rem, 1.5rem + 4vw, 4.4rem);
  --wrap: 72rem;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #131215; --paper-2: #1a1d1a; --ink: #eeecf2; --ink-2: #a9adb0;
    --rule: #2d302d; --accent: #b99ae6; --accent-ink: #1b0f2e; --signal: #ff6fb8;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #131215; --paper-2: #1a1d1a; --ink: #eeecf2; --ink-2: #a9adb0;
  --rule: #2d302d; --accent: #b99ae6; --accent-ink: #1b0f2e; --signal: #ff6fb8;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 var(--step-0)/1.6 var(--font-body);
}
img, canvas, iframe { max-width: 100%; display: block; }
a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 3px;
}
h1, h2, h3 { font-family: var(--font-display); font-stretch: 112%; line-height: 1.08; margin: 0; text-wrap: balance; letter-spacing: -0.01em; }
p { margin: 0; }

.band { padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
.wrap { max-width: var(--wrap); margin-inline: auto; }
.label {
  font: 500 var(--step--1)/1.3 var(--font-mono); text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--ink-2);
}

/* header */
.site-header { border-bottom: 1px solid var(--rule); padding-block: 14px; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font: 700 1.15rem/1 var(--font-display); font-stretch: 118%; }
.brand svg { width: 26px; height: 26px; }
.nav { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; font-size: 0.95rem; }
.nav a { color: var(--ink); text-decoration: none; }
.nav a:hover { color: var(--accent); }
.nav .lang { font-family: var(--font-mono); font-size: var(--step--1); border: 1px solid var(--rule); padding: 3px 8px; border-radius: 4px; }

/* hero */
.hero { padding-block: clamp(32px, 6vw, 72px); }
.hero .wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(24px, 4vw, 56px); align-items: center; }
.hero-copy { display: grid; gap: 22px; min-width: 0; }
.hero h1 { font-size: var(--step-4); font-weight: 800; }
.hero .lede { font-size: var(--step-1); color: var(--ink-2); max-width: 34em; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 20px; border-radius: 6px; font: 600 1rem/1 var(--font-body);
  text-decoration: none; border: 1.5px solid var(--accent); cursor: pointer;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; color: var(--accent); }
.hero-facts { display: flex; gap: 20px; flex-wrap: wrap; }
.hero-facts span { font: 500 var(--step--1)/1.3 var(--font-mono); color: var(--ink-2); }
.hero-facts b { color: var(--ink); font-weight: 600; }

.scan-frame {
  position: relative; border: 1px solid var(--rule); border-radius: 10px; overflow: hidden;
  background: var(--paper-2); aspect-ratio: 4 / 3.2; max-width: 100%; min-width: 0;
}
.scan-frame .contours { position: absolute; inset: 0; width: 100%; height: 100%; color: var(--rule); }
.placeholder-note { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; pointer-events: none; }
.placeholder-note p { font: 600 1.05rem/1.35 var(--font-display); font-stretch: 112%; color: var(--ink-2); background: var(--paper-2); padding: 10px 16px; border-radius: 6px; }
.scan-fs { position: absolute; right: 10px; bottom: 10px; z-index: 2; font: 500 0.75rem/1 var(--font-mono); text-transform: uppercase; letter-spacing: 0.06em; padding: 8px 10px; border-radius: 4px; border: 1px solid var(--rule); background: var(--paper); color: var(--ink); text-decoration: none; }
.scan-frame iframe { width: 100%; height: 100%; border: 0; }
.hud {
  position: absolute; left: 0; right: 0; display: flex; justify-content: space-between; gap: 8px;
  padding: 10px 12px; font: 500 0.72rem/1.3 var(--font-mono); letter-spacing: 0.06em; color: var(--ink-2);
  text-transform: uppercase; pointer-events: none;
}
.hud.top { top: 0; } .hud.bottom { bottom: 0; }
.hud .rec { color: var(--signal); }

/* sections */
section.band { padding-block: clamp(48px, 7vw, 88px); }
.alt { background: var(--paper-2); }
.section-head { display: grid; gap: 12px; margin-bottom: 36px; max-width: 46rem; }
.section-head h2 { font-size: var(--step-3); font-weight: 750; }
.section-head p { color: var(--ink-2); font-size: 1.08rem; }

.uses { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.use { background: var(--paper); padding: 22px; display: grid; gap: 8px; align-content: start; }
.alt .use { background: var(--paper-2); }
.use h3 { font-size: 1.15rem; font-weight: 700; }
.use p { color: var(--ink-2); font-size: 0.97rem; }

.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; counter-reset: step; }
.steps li { display: grid; gap: 8px; align-content: start; border-top: 2px solid var(--ink); padding-top: 14px; counter-increment: step; }
.steps li::before { content: counter(step, decimal-leading-zero); font: 600 var(--step--1)/1 var(--font-mono); color: var(--accent); }
.steps h3 { font-size: 1.1rem; }
.steps p { color: var(--ink-2); font-size: 0.97rem; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 4vw, 56px); align-items: start; }
.split > * { min-width: 0; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.checks li { padding-left: 26px; position: relative; }
.checks li::before { content: ""; position: absolute; left: 2px; top: 0.55em; width: 12px; height: 7px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg); }

/* pricing */
.plans { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; align-items: stretch; }
.plan { border: 1px solid var(--rule); border-radius: 10px; padding: 24px; display: grid; gap: 14px; grid-template-rows: auto auto auto 1fr auto; background: var(--paper); }
.plan.featured { border: 2px solid var(--accent); }
.plan h3 { font-size: 1.25rem; }
.plan .size { font: 500 var(--step--1)/1.3 var(--font-mono); color: var(--ink-2); text-transform: uppercase; letter-spacing: 0.06em; }
.price { font: 800 2.3rem/1 var(--font-display); font-variant-numeric: tabular-nums; }
.price small { font: 500 0.85rem/1 var(--font-body); color: var(--ink-2); margin-left: 4px; }
.plan ul { margin: 0; padding-left: 18px; display: grid; gap: 6px; color: var(--ink-2); font-size: 0.95rem; }
.launch {
  margin-top: 22px; border: 1.5px dashed var(--signal); border-radius: 10px; padding: 18px 20px;
  display: flex; gap: 16px; align-items: center; justify-content: space-between; flex-wrap: wrap;
}
.launch p { max-width: 46em; }
.launch strong { color: var(--signal); }
.addons { margin-top: 28px; overflow-x: auto; }
.addons table { width: 100%; border-collapse: collapse; font-size: 0.95rem; min-width: 30rem; }
.addons th, .addons td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--rule); vertical-align: top; }
.addons th { font: 500 var(--step--1)/1.3 var(--font-mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-2); }
.addons td:last-child, .addons th:last-child { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.fine { color: var(--ink-2); font-size: 0.88rem; margin-top: 14px; }

/* faq */
.faq { display: grid; gap: 0; border-top: 1px solid var(--rule); max-width: 52rem; }
.faq details { border-bottom: 1px solid var(--rule); padding-block: 16px; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 1.05rem; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--font-mono); color: var(--accent); }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin-top: 10px; color: var(--ink-2); max-width: 65ch; }

/* form */
.quote { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(24px, 4vw, 56px); }
.quote > * { min-width: 0; }
.quote-aside { display: grid; gap: 16px; align-content: start; }
.contact-line { font-family: var(--font-mono); font-size: 0.95rem; user-select: all; }
form.quote-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: grid; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-weight: 600; font-size: 0.92rem; }
.field input, .field select, .field textarea {
  font: inherit; color: var(--ink); background: var(--paper); border: 1px solid var(--rule);
  border-radius: 6px; padding: 11px 12px; width: 100%;
}
.alt .field input, .alt .field select, .alt .field textarea { background: var(--paper); }
.field textarea { min-height: 110px; resize: vertical; }
.hp { position: absolute; left: -9999px; }
.form-status { grid-column: 1 / -1; font-size: 0.95rem; }
.form-status.ok { color: var(--accent); font-weight: 600; }
.form-status.err { color: var(--signal); }

footer.band { padding-block: 32px; border-top: 1px solid var(--rule); font-size: 0.9rem; color: var(--ink-2); }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

@media (max-width: 880px) {
  .hero .wrap, .split, .quote { grid-template-columns: 1fr; }
  .uses, .plans { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 520px) {
  .steps { grid-template-columns: 1fr; }
  form.quote-form { grid-template-columns: 1fr; }
  .nav .hide-sm { display: none; }
}

.consent { position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; background: var(--paper); border-top: 1px solid var(--rule);
  padding-block: 14px calc(14px + env(safe-area-inset-bottom, 0px)); padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px));
  display: flex; gap: 12px 20px; align-items: center; justify-content: center; flex-wrap: wrap; box-shadow: 0 -6px 20px rgba(0,0,0,.08); }
.consent p { max-width: 46em; font-size: 0.95rem; }
.consent-btns { display: flex; gap: 10px; }

.agent-offer { margin-top: 18px; border: 1px solid var(--rule); border-radius: 10px; padding: 22px 24px; background: var(--paper-2);
  display: grid; grid-template-columns: 1fr auto; gap: 16px 32px; align-items: center; }
.agent-offer > div { display: grid; gap: 8px; min-width: 0; }
.agent-offer h3 { font-size: 1.25rem; }
.agent-offer p:not(.label):not(.price):not(.fine) { color: var(--ink-2); max-width: 44em; }
.agent-price { justify-items: start; }
@media (max-width: 640px) { .agent-offer { grid-template-columns: 1fr; } }

.brand-name { display: grid; gap: 3px; }
.brand-name small { font: 500 0.68rem/1 var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-2); font-stretch: normal; }

/* ---------- Scroll story: one clip per screen; captions on white glass cards ---------- */
.story { position: relative; height: calc(var(--n, 5) * 100vh); height: calc(var(--n, 5) * 100svh); background: var(--paper-2); color: #1a1a1a; }
.story-stage { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; z-index: 1; }
.story-scene { position: absolute; left: 0; width: 1px; height: 100vh; height: 100svh; top: calc(var(--i) * 100vh); top: calc(var(--i) * 100svh); pointer-events: none; }
.story-media { position: absolute; inset: 0; opacity: 0; transition: opacity 1s ease; }
.story-media.on { opacity: 1; }
.story-3d { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; display: block; opacity: 0; transition: opacity .8s ease; pointer-events: none; background: transparent; }
.story-3d.on { opacity: 1; }
.story-media img, .story-media video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.story-media video { opacity: 0; transition: opacity .6s ease; }
.story-media.has-video video { opacity: 1; }
.story-media.on img { animation: drift 18s ease-out both; }
@keyframes drift { from { transform: scale(1.025); } to { transform: scale(1); } }
.story-tag { position: absolute; z-index: 3; top: max(18px, env(safe-area-inset-top, 0px)); right: max(16px, env(safe-area-inset-right, 0px));
  font: 500 0.72rem/1.3 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: #1a1a1a;
  background: rgba(255,255,255,0.82); padding: 6px 10px; border-radius: 6px; backdrop-filter: blur(8px); }
.story-caps { position: absolute; inset: 0; z-index: 2; pointer-events: none; }
.story-cap { position: absolute; left: max(16px, env(safe-area-inset-left, 0px)); right: max(16px, env(safe-area-inset-right, 0px)); bottom: clamp(28px, 7vh, 80px);
  max-width: 36rem; display: grid; gap: 12px; padding: clamp(18px, 2.4vw, 30px); border-radius: 16px;
  background: rgba(255,255,255,0.88); backdrop-filter: blur(14px) saturate(1.2); -webkit-backdrop-filter: blur(14px) saturate(1.2);
  box-shadow: 0 18px 50px rgba(20,20,30,0.18);
  opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; visibility: hidden; }
.story-cap.on { opacity: 1; transform: none; visibility: visible; pointer-events: auto; transition-delay: .15s; }
.story-cap:first-child { max-width: 44rem; }
@media (min-width: 900px) { .story-cap { left: max(6vw, env(safe-area-inset-left, 0px)); right: auto; } }
.story-cap h1, .story-cap h2 { margin: 0; color: #1a1a1a; font-family: var(--font-display); font-weight: 800; font-stretch: 112%; letter-spacing: -0.015em; line-height: 1.02; text-wrap: balance; }
.story-cap h1 { font-size: clamp(2.3rem, 1.5rem + 3.6vw, 4.6rem); }
.story-cap h2 { font-size: clamp(1.9rem, 1.3rem + 2.4vw, 3.3rem); }
.story-cap p { margin: 0; color: #444b46; font-size: clamp(1rem, 0.95rem + 0.3vw, 1.18rem); max-width: 32em; text-wrap: pretty; }
.story-eyebrow { font: 600 0.76rem/1.3 var(--font-mono) !important; letter-spacing: 0.1em; text-transform: uppercase; color: #5b2d8e !important; }
.story-hint { font: 500 0.72rem/1 var(--font-mono) !important; letter-spacing: 0.14em; text-transform: uppercase; color: #6b6f6c !important; display: inline-flex; align-items: center; gap: 10px; }
.story-hint::after { content: ""; width: 1px; height: 22px; background: linear-gradient(#5b2d8e, rgba(91,45,142,0)); animation: hint 1.8s ease-in-out infinite; }
@keyframes hint { 0%, 100% { transform: translateY(-3px); opacity: .4; } 50% { transform: translateY(3px); opacity: 1; } }
.story-dots { position: absolute; z-index: 3; right: max(16px, env(safe-area-inset-right, 0px)); top: 50%; transform: translateY(-50%); display: grid; gap: 12px;
  background: rgba(255,255,255,0.7); padding: 10px 7px; border-radius: 20px; backdrop-filter: blur(8px); }
.story-dots button { width: 10px; height: 10px; padding: 0; border-radius: 50%; border: 1.5px solid #5b2d8e; background: transparent; cursor: pointer; }
.story-dots button[aria-current="step"] { background: #5b2d8e; }
.story-dots button:focus-visible { outline: 2px solid #d4288a; outline-offset: 3px; }
.story .btn-light, .btn-light { background: #5b2d8e; color: #fff; border: 1.5px solid #5b2d8e; }
.story .btn-light:hover, .btn-light:hover { filter: brightness(1.12); }
.btn-outline-light { background: transparent; color: #5b2d8e; border: 1.5px solid #5b2d8e; }
.btn-outline-light:hover { background: rgba(91,45,142,0.06); }
.story .btn:focus-visible { outline-color: #d4288a; }
.story:not(.is-live) { height: auto; }
.story:not(.is-live) .story-stage { position: relative; }
.story:not(.is-live) .story-scene { display: none; }
@media (prefers-reduced-motion: reduce) {
  .story-hint::after, .story-media.on img { animation: none; }
  .story-media, .story-cap { transition-duration: .01s; }
}
@media (max-width: 640px) {
  .story-dots { display: none; }
  .story-cap { padding: 16px 18px; gap: 9px; bottom: 20px; }
  /* the page header sits above the stage on first load, so lift the opening card clear of the fold */
  .story-cap:first-child { bottom: 112px; }
  .story-cap h1 { font-size: clamp(2rem, 1.4rem + 3.4vw, 2.6rem); }
  .story-hint { display: none !important; }
}

/* live 3D sample */
.live-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(24px, 4vw, 56px); align-items: center; }
.live-grid > * { min-width: 0; }
.scan-poster { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.scan-frame .hud { color: #1a1a1a; z-index: 1; }
.scan-frame .hud span { background: rgba(255,255,255,0.85); padding: 3px 7px; border-radius: 4px; }
.scan-start { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; gap: 10px; background: rgba(255,255,255,0.18); z-index: 1; text-align: center; padding: 16px; }
.scan-open { color: #1a1a1a; font-size: 0.95rem; background: rgba(255,255,255,0.85); padding: 4px 10px; border-radius: 6px; }
.scan-size { color: #1a1a1a; background: rgba(255,255,255,0.85); padding: 3px 8px; border-radius: 5px; font: 500 0.7rem/1.3 var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase; }
@media (max-width: 880px) { .live-grid { grid-template-columns: 1fr; } }

/* ---------- sample scan cases ---------- */
.cases { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(16px, 2.4vw, 28px); }
.case { display: grid; grid-template-rows: auto 1fr; background: var(--paper); border: 1px solid var(--rule); border-radius: 14px; overflow: hidden; }
.case-media { display: block; aspect-ratio: 16 / 9; overflow: hidden; background: var(--paper-2); }
.case-media img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .6s ease; }
.case-media:hover img, .case-media:focus-visible img { transform: scale(1.03); }
.case-body { display: grid; gap: 10px; padding: clamp(18px, 2.2vw, 26px); align-content: start; }
.case-body h3 { margin: 0; font-family: var(--font-display); font-weight: 800; font-stretch: 112%; font-size: var(--step-2); line-height: 1.1; }
.case-body p { margin: 0; color: var(--ink-2); }
.case-no { font: 600 0.74rem/1.3 var(--font-mono) !important; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent) !important; }
.case-facts { display: flex; flex-wrap: wrap; gap: 6px 14px; font: 500 var(--step--1)/1.3 var(--font-mono); }
.case-facts span { color: var(--ink); }
.case-facts span + span::before { content: "·"; margin-right: 14px; color: var(--ink-2); }
.case .btn { justify-self: start; margin-top: 4px; }
@media (min-width: 1100px) { .cases { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 760px) { .cases { grid-template-columns: 1fr; } }
.case-media video { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .6s ease; }
.case-media:hover video, .case-media:focus-visible video { transform: scale(1.03); }
@media (prefers-reduced-motion: reduce) { .case-media video { transition: none; } }