/* Seagull Drone Lab – design concept B "Aerospace Engineering"
   Dark anthracite, thin grey lines, one orange accent, grotesk type, generous white space.
   Mobile-first, no frameworks, no external fonts (privacy: no third-party requests). */
:root {
  --bg: #16181B;          /* anthracite */
  --bg-2: #1B1E22;        /* alternate section */
  --surface: #1F2226;     /* cards / panels */
  --surface-2: #262A2F;   /* inputs */
  --line: #33383E;        /* thin grey lines */
  --line-strong: #4A5058;
  --text: #ECEEF0;
  --muted: #A7ADB5;       /* ≥ 7:1 on --bg */
  --faint: #8B929B;
  --orange: #FF6A13;      /* the single accent */
  --orange-ink: #FF8A45;  /* accent for small text on dark (≥ 6:1) */
  --on-orange: #121314;
  --error: #FF7A6E;
  --success: #5BD39A;
  --radius: 6px;
  --container: 1160px;
  --font: "Inter", "Helvetica Neue", "Arial Nova", Helvetica, Arial, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  /* legacy aliases used by older markup */
  --white: #FFFFFF; --navy: var(--bg); --ink: var(--text);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; background: var(--bg); color-scheme: dark; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }
body { margin: 0; font-family: var(--font); font-size: 1.0625rem; line-height: 1.65; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
img, svg { max-width: 100%; }
img { height: auto; display: block; }
a { color: var(--text); text-decoration-color: var(--orange); text-underline-offset: 4px; text-decoration-thickness: 1px; }
a:hover { color: var(--orange-ink); }
:focus-visible { outline: 2px solid var(--orange); outline-offset: 3px; border-radius: 2px; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -.025em; margin: 0 0 .55em; font-weight: 650; }
h1 { font-size: clamp(2.2rem, 7vw, 4rem); font-weight: 600; }
h2 { font-size: clamp(1.7rem, 4.2vw, 2.5rem); font-weight: 600; }
h3 { font-size: 1.1rem; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
.container { width: min(100% - 2.5rem, var(--container)); margin-inline: auto; }
.narrow { max-width: 760px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: 1rem; top: -100px; background: var(--orange); color: var(--on-orange); padding: .6rem 1rem; z-index: 100; border-radius: var(--radius); font-weight: 700; }
.skip-link:focus { top: 1rem; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .55rem; min-height: 48px; padding: .75rem 1.35rem; border-radius: var(--radius); border: 1px solid transparent; font: inherit; font-weight: 600; letter-spacing: .01em; text-decoration: none; cursor: pointer; transition: background-color .2s, border-color .2s, color .2s; }
.btn-primary { background: var(--orange); color: var(--on-orange); }
.btn-primary:hover { background: #FF8037; color: var(--on-orange); }
.btn-ghost { border-color: var(--line-strong); color: var(--text); background: transparent; }
.btn-ghost:hover { border-color: var(--text); color: var(--text); }
.btn-light { background: var(--surface); color: var(--text); border-color: var(--line-strong); }
.btn-sm { min-height: 40px; padding: .45rem 1rem; font-size: .94rem; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .6; cursor: progress; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(22,24,27,.92); color: var(--text); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 68px; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .65rem; color: var(--text); text-decoration: none; font-size: 1.05rem; letter-spacing: -.01em; }
.brand:hover { color: var(--text); }
.brand .logo { flex: none; border-radius: 6px; }
.brand-name strong { color: var(--orange); font-weight: 650; }
.nav-toggle { display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px; background: transparent; border: 1px solid var(--line-strong); border-radius: var(--radius); cursor: pointer; }
.nav-toggle-bar, .nav-toggle-bar::before, .nav-toggle-bar::after { display: block; width: 20px; height: 1.5px; background: var(--text); position: relative; transition: transform .2s; }
.nav-toggle-bar::before, .nav-toggle-bar::after { content: ""; position: absolute; left: 0; }
.nav-toggle-bar::before { top: -6px; } .nav-toggle-bar::after { top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after { transform: translateY(-6px) rotate(-45deg); }
.site-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--bg); padding: 1rem 1.25rem 1.5rem; border-bottom: 1px solid var(--line); }
.site-nav.is-open { display: block; }
.site-nav ul { list-style: none; margin: 0 0 1rem; padding: 0; }
.site-nav li a { display: block; padding: .75rem 0; color: var(--text); text-decoration: none; border-bottom: 1px solid var(--line); }
.site-nav a:hover { color: var(--orange-ink); }
.lang-switch { display: inline-flex; align-items: center; justify-content: center; min-width: 48px; min-height: 40px; margin-right: .5rem; padding: 0 .8rem; border: 1px solid var(--line-strong); border-radius: var(--radius); color: var(--text); text-decoration: none; font-weight: 600; font-size: .85rem; letter-spacing: .1em; }
.site-nav-simple { display: block; position: static; padding: 0; background: none; border: 0; }
@media (min-width: 960px) {
  .nav-toggle { display: none; }
  .site-nav { display: flex; align-items: center; gap: 1.5rem; position: static; padding: 0; background: none; border: 0; }
  .site-nav ul { display: flex; gap: 1.5rem; margin: 0; }
  .site-nav li a { padding: .4rem 0; border: 0; font-size: .95rem; color: var(--muted); }
  .site-nav li a:hover { color: var(--text); }
}

/* Hero */
.hero { position: relative; padding: 3.5rem 0 4rem; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; gap: 2.5rem; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: .7rem; color: var(--orange-ink); font: 500 .8rem/1 var(--mono); text-transform: uppercase; letter-spacing: .16em; margin-bottom: 1.4rem; }
.eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--orange); }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 36rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin: 2rem 0; }
.hero-points { list-style: none; padding: 1.25rem 0 0; margin: 0; display: grid; gap: .55rem; color: var(--muted); border-top: 1px solid var(--line); max-width: 36rem; }
.hero-points li { position: relative; padding-left: 1.6rem; }
.hero-points li::before { content: ""; position: absolute; left: 0; top: .78em; width: 12px; height: 1px; background: var(--orange); }
.hero-visual { max-width: 420px; margin-inline: auto; width: 100%; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); }
.drone-art { display: block; width: 100%; height: auto; }
.bp-text { font-family: var(--mono); }
.bp-props { animation: bp-spin 40s linear infinite; transform-box: fill-box; transform-origin: center; }
.bp-lines { stroke-dasharray: 900; stroke-dashoffset: 0; animation: bp-draw 1.6s ease-out both; }
@keyframes bp-spin { to { stroke-dashoffset: -220; } }
@keyframes bp-draw { from { stroke-dashoffset: 900; } to { stroke-dashoffset: 0; } }
.hero-copy > * { animation: fade-up .6s ease-out both; }
.hero-copy > :nth-child(2) { animation-delay: .05s; } .hero-copy > :nth-child(3) { animation-delay: .1s; } .hero-copy > :nth-child(n+4) { animation-delay: .15s; }
@keyframes fade-up { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@media (min-width: 860px) { .hero { padding: 6.5rem 0 7rem; } .hero-grid { grid-template-columns: 1.1fr .9fr; gap: 4rem; } }

/* Sections */
.section { padding: 4.5rem 0; border-bottom: 1px solid var(--line); }
@media (min-width: 860px) { .section { padding: 6.5rem 0; } }
.section-alt { background: var(--bg-2); }
.section-navy { background: var(--bg); }
.section h2 { position: relative; padding-top: 1.1rem; }
.section h2::before { content: ""; position: absolute; top: 0; left: 0; width: 32px; height: 1px; background: var(--orange); }
.section-lead { color: var(--muted); font-size: 1.08rem; max-width: 42rem; margin-bottom: 2.5rem; }
.note { color: var(--faint); font-size: .93rem; }
.section .note, .legal .note { color: var(--muted); }

/* Steps */
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; border-top: 1px solid var(--line); }
.step { position: relative; padding: 1.5rem 0; border-bottom: 1px solid var(--line); }
.step p { color: var(--muted); margin: 0; font-size: .98rem; }
.step-num { display: inline-block; font: 500 .85rem/1 var(--mono); color: var(--orange-ink); letter-spacing: .1em; margin-bottom: .9rem; }
.step-num::before { content: "0"; }
@media (min-width: 700px) { .steps { grid-template-columns: repeat(2, 1fr); border-top: 0; border-left: 1px solid var(--line); } .step { padding: 1.5rem; border: 1px solid var(--line); border-left: 0; margin-top: -1px; } }
@media (min-width: 1040px) { .steps { grid-template-columns: repeat(5, 1fr); } }

/* Service cards */
.cards { list-style: none; padding: 0; margin: 0 0 1.5rem; display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.card { display: flex; flex-direction: column; padding: 1.6rem 1.4rem; background: var(--surface); transition: background-color .2s; }
.card:hover { background: #23272C; }
.card p { color: var(--muted); font-size: .96rem; }
.card .icon { width: 30px; height: 30px; color: var(--orange); margin-bottom: 1rem; stroke-width: 1.3; }
.price { margin: auto 0 0; padding-top: .9rem; border-top: 1px solid var(--line); color: var(--text) !important; display: flex; align-items: baseline; gap: .45rem; }
.price-from { text-transform: lowercase; color: var(--muted); font-size: .88rem; font-family: var(--mono); }
.price-amount { font-size: 1.45rem; font-weight: 600; color: var(--text); letter-spacing: -.02em; }
.parts-badge { display: inline-block; align-self: flex-start; margin: 0 0 .7rem; padding: .1rem .55rem; border: 1px solid var(--orange); border-radius: 3px; color: var(--orange-ink) !important; font: 500 .75rem/1.6 var(--mono) !important; letter-spacing: .04em; }
@media (min-width: 640px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .cards { grid-template-columns: repeat(4, 1fr); } }

/* Brands */
.brands { display: grid; gap: 1.5rem; }
.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; border-top: 1px solid var(--line); }
.checklist li { padding: 1rem 0 1rem 2rem; border-bottom: 1px solid var(--line); position: relative; }
.checklist li::before { content: ""; position: absolute; left: .1rem; top: 1.35rem; width: 10px; height: 5px; border-left: 1.5px solid var(--orange); border-bottom: 1.5px solid var(--orange); transform: rotate(-45deg); }
@media (min-width: 860px) { .brands { grid-template-columns: 1fr 1fr; align-items: start; gap: 4rem; } .brands-disclaimer { grid-column: 1 / -1; } }

/* Form */
.form-wrap { display: grid; gap: 2rem; }
@media (min-width: 960px) { .form-wrap { grid-template-columns: .8fr 1.2fr; align-items: start; gap: 4rem; } .form-intro { position: sticky; top: 110px; } }
.repair-form { background: var(--surface); color: var(--text); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; }
@media (min-width: 600px) { .repair-form { padding: 2.25rem; } }
.field { margin: 0 0 1.2rem; border: 0; padding: 0; min-width: 0; }
.field-row { display: grid; gap: 0 1rem; }
@media (min-width: 600px) { .field-row { grid-template-columns: 1fr 1fr; } }
label, .label, legend { display: block; font-weight: 500; margin-bottom: .4rem; font-size: .95rem; color: var(--text); }
.req { color: var(--orange-ink); }
input[type="text"], input[type="email"], input[type="tel"], select, textarea {
  width: 100%; min-height: 48px; padding: .7rem .9rem; font: inherit; color: var(--text); background: var(--surface-2);
  border: 1px solid var(--line-strong); border-radius: var(--radius); transition: border-color .15s, box-shadow .15s;
}
select option { background: var(--surface-2); color: var(--text); }
::placeholder { color: #868D96; }
textarea { resize: vertical; min-height: 130px; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--orange); box-shadow: 0 0 0 3px rgba(255,106,19,.25); }
[aria-invalid="true"] { border-color: var(--error) !important; }
.field-error { color: var(--error); font-size: .9rem; margin: .3rem 0 0; }
.field-error:empty { display: none; }
.radios { display: grid; gap: .45rem; }
.radios label, .check { display: flex; gap: .6rem; align-items: flex-start; font-weight: 400; cursor: pointer; color: var(--muted); }
.radios input, .check input { width: 20px; height: 20px; margin-top: .2rem; accent-color: var(--orange); flex: none; }
.dropzone { position: relative; border: 1px dashed var(--line-strong); border-radius: var(--radius); padding: 1.4rem; text-align: center; background: var(--bg-2); transition: border-color .15s, background .15s; }
.dropzone.is-dragover { border-color: var(--orange); background: #241C17; }
.dropzone input[type="file"] { position: absolute; width: 1px; height: 1px; opacity: 0; }
.dropzone input[type="file"]:focus-visible + label { outline: 2px solid var(--orange); outline-offset: 3px; }
.dropzone .help { margin: .6rem 0 0; color: var(--muted); font-size: .9rem; }
.previews { list-style: none; padding: 0; margin: .8rem 0 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: .6rem; }
.previews li { position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: var(--bg-2); aspect-ratio: 1; }
.previews img { width: 100%; height: 100%; object-fit: cover; display: block; }
.previews .ph { display: flex; align-items: center; justify-content: center; height: 100%; font-size: .75rem; padding: .3rem; text-align: center; word-break: break-all; color: var(--muted); }
.previews button { position: absolute; top: 4px; right: 4px; width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--line-strong); background: rgba(22,24,27,.9); color: var(--text); font-size: 1.1rem; line-height: 1; cursor: pointer; }
.hp { position: absolute !important; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.consent a { color: var(--text); }
.form-status { margin: 1rem 0 0; font-weight: 500; }
.form-status.is-success { color: var(--success); }
.form-status.is-error { color: var(--error); }
.form-status:empty { display: none; }

/* FAQ */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; padding: 1.2rem 2.5rem 1.2rem 0; font-weight: 500; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: .25rem; top: .95rem; font: 300 1.5rem/1 var(--mono); color: var(--orange); }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--muted); padding-bottom: 1.2rem; margin: 0; max-width: 46rem; }

/* About + workshop photo slots */
.about { display: grid; gap: 2rem; }
.workshop { margin: 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg); overflow: hidden; }
.workshop-art { display: block; width: 100%; height: auto; padding: 1.5rem; }
.workshop-photos { display: grid; gap: 1px; background: var(--line); }
.photo-slot { margin: 0; background: var(--bg); }
.photo-slot img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.photo-slot figcaption { padding: .6rem .9rem; font: 500 .8rem/1.4 var(--mono); color: var(--muted); letter-spacing: .04em; }
.badges { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; align-content: start; border-top: 1px solid var(--line); }
.badges li { padding: .95rem 0 .95rem 1.4rem; border-bottom: 1px solid var(--line); position: relative; font-weight: 500; }
.badges li::before { content: ""; position: absolute; left: 0; top: 50%; width: 8px; height: 1px; background: var(--orange); }
@media (min-width: 860px) { .about { grid-template-columns: 1.2fr .8fr; gap: 4rem; } .about .badges { grid-column: 2; } .workshop { grid-column: 2; grid-row: 1; } }
/* AI workshop illustration: full-width figure under about text + badges */
.workshop-illustration { background: var(--bg-2); }
.workshop-illustration picture { display: block; aspect-ratio: 16 / 9; background: var(--surface); }
.workshop-illustration img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.workshop-illustration figcaption { padding: .55rem .9rem; border-top: 1px solid var(--line); font: 500 .75rem/1.4 var(--mono); color: var(--faint); letter-spacing: .04em; }
.workshop-illustration figcaption::before { content: ""; display: inline-block; width: 8px; height: 1px; margin: 0 .6rem .25em 0; vertical-align: middle; background: var(--orange); }
.workshop-illustration img { transition: opacity .6s ease-out, transform .6s ease-out; }
.workshop-illustration img.is-pending { opacity: 0; transform: translateY(8px); }
@media (min-width: 860px) { .about .workshop-illustration { grid-column: 1 / -1; grid-row: 2; } }

/* Contact */
.contact-grid { display: grid; gap: 1px; margin: 0; background: var(--line); border: 1px solid var(--line); }
.contact-grid > div { padding: 1.35rem 1.25rem; background: var(--surface); }
.contact-grid dt { font: 500 .75rem/1.4 var(--mono); text-transform: uppercase; letter-spacing: .14em; color: var(--muted); }
.contact-grid dd { margin: .4rem 0 0; font-weight: 500; overflow-wrap: anywhere; }
.contact-grid dd .note { display: inline-block; margin-top: .35rem; font-weight: 400; font-size: .88rem; }
@media (min-width: 700px) { .contact-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .contact-grid { grid-template-columns: repeat(4, 1fr); } }

/* WhatsApp floating button (rendered only when whatsapp.number is set) */
.wa-float { position: fixed; right: 1rem; bottom: 1rem; z-index: 60; display: inline-flex; align-items: center; gap: .5rem; min-height: 56px; min-width: 56px; justify-content: center; padding: 0 1rem; border-radius: 999px; background: #0E7A3B; color: var(--white); text-decoration: none; font-weight: 600; box-shadow: 0 10px 25px rgba(0,0,0,.35); }
.wa-float:hover { color: var(--white); background: #0B6A33; }
.wa-float .wa-icon { width: 26px; height: 26px; }
.wa-float-label { display: none; }
@media (min-width: 700px) { .wa-float { right: 1.5rem; bottom: 1.5rem; } .wa-float-label { display: inline; } }
.hero .wa-icon { flex: none; }

/* Footer */
.site-footer { background: var(--bg); color: var(--muted); padding: 3.5rem 0 4rem; font-size: .93rem; }
.footer-inner { display: grid; gap: 1.75rem; }
.footer-brand { display: flex; gap: .9rem; align-items: center; }
.footer-brand p { margin: 0; }
.footer-brand strong { color: var(--text); font-weight: 600; }
.footer-links { list-style: none; padding: 0; margin: 0; display: grid; gap: .45rem; }
.site-footer a { color: var(--text); }
.site-footer a:hover { color: var(--orange-ink); }
.footer-meta { margin: 0; color: var(--muted); }
@media (min-width: 860px) { .footer-inner { grid-template-columns: 1.2fr 1fr 1.2fr; align-items: start; } }

/* Legal page */
.legal h1 { margin-top: .5rem; }
.legal h2 { font-size: 1.3rem; margin-top: 2.25rem; }
.legal ul { padding-left: 1.2rem; }
.legal li { margin-bottom: .4rem; }
.legal p, .legal li { color: #D2D6DB; }
.draft-banner { background: #241C17; border: 1px solid var(--orange); color: #FFC9A6; padding: 1rem 1.25rem; border-radius: var(--radius); }