/* Ledlux Solutions - stylesheet
   Palette: slate #1B2230, daylight #F4F7FB, amber #F2A93B, mist #CFE0F5, rule #D5DCE6 */

:root {
  --slate: #14171A;
  --daylight: #F4F7FB;
  --amber: #F2A93B;
  --amber-dark: #B87414;
  --green: #1E7B34;
  --green-hover: #17632A;
  --green-dark: #1A6B2E;
  --green-soft: #86CFA0;
  --green-deep: #14532D;
  --mist: #CFE0F5;
  --rule: #D5DCE6;
  --muted: #515C70;
  --blue: #1E4FD8;
  --error: #B3261E;
  --ok: #18794E;
  --font-head: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Public Sans', 'Segoe UI', Arial, sans-serif;
  --max: 1120px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font: 400 1.0625rem/1.6 var(--font-body);
  color: var(--slate);
  background: #fff;
}
img, svg, iframe { max-width: 100%; }

h1, h2, h3 {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.2rem, 4.6vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); }
h3, .h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; max-width: 62ch; }
address { font-style: normal; margin-bottom: 1em; }
a { color: var(--blue); }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; border-radius: 2px; }

.wrap { width: min(100% - 2.5rem, var(--max)); margin-inline: auto; }
.lead { font-size: 1.2rem; color: var(--muted); }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--slate); color: #fff; padding: 0.75rem 1rem; z-index: 100;
}
.skip-link:focus { left: 0.5rem; top: 0.5rem; }

/* Header */
.site-header { position: relative; border-bottom: 1px solid var(--rule); background: #fff; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 72px; }
.brand { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; color: var(--slate); }
.brand img { display: block; height: 38px; width: auto; }
.nav ul { display: flex; gap: 1.3rem; list-style: none; margin: 0; padding: 0; }
.nav a {
  color: var(--slate); text-decoration: none; font-weight: 600;
  padding: 0.4rem 0; border-bottom: 2px solid transparent;
}
.nav a:hover, .nav a[aria-current="page"] { border-color: var(--green); }
.nav-toggle {
  display: none; background: none; border: 2px solid var(--slate); color: var(--slate);
  border-radius: 6px; padding: 0.5rem 0.9rem; font: 600 1rem var(--font-body); cursor: pointer; min-height: 44px;
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.8rem 1.3rem; min-height: 48px; border-radius: 6px;
  font: 600 1rem var(--font-body); text-decoration: none;
  border: 2px solid transparent; cursor: pointer;
}
.header-cta { gap: 0.3em; white-space: nowrap; }
.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { background: var(--green-hover); }
.btn-dark { background: #0B0D0F; color: #fff; }
.btn-dark:hover { background: #2A2F35; }
.btn-outline-dark { border-color: #0B0D0F; color: #0B0D0F; background: transparent; }
.btn-outline-dark:hover { background: #0B0D0F; color: #fff; }
.btn-line { border-color: var(--slate); color: var(--slate); background: transparent; }
.btn-line:hover { background: var(--slate); color: #fff; }
.btn-light { border-color: #fff; color: #fff; background: transparent; }
.btn-light:hover { background: #fff; color: var(--slate); }

/* Hero */
.hero { padding: clamp(2rem, 6vw, 4.5rem) 0; }
.hero .wrap { display: grid; gap: 2.5rem; grid-template-columns: 1fr; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.5rem; }

.lamp {
  --g: 251, 193, 112;
  overflow: hidden; padding: 1rem 1.25rem 1.5rem;
  background: #E3EAF3; color: var(--slate); border: 1px solid var(--rule); border-radius: 20px;
}
.filter-defs { position: absolute; width: 0; height: 0; overflow: hidden; }
.photo { filter: drop-shadow(0 14px 14px rgba(27, 34, 48, 0.22)); }
.photo img { display: block; width: 100%; height: auto; filter: url(#cct); }
.lamp-body { padding-top: 0.5rem; }
.lamp-read { display: flex; align-items: center; gap: 1.25rem; margin-bottom: 1rem; }
.lamp-kelvin { font: 800 2.6rem/1 var(--font-head); margin: 0; white-space: nowrap; }
.lamp-name { font-weight: 600; margin: 0 0 0.15rem; }
.lamp-use { color: var(--muted); margin: 0; font-size: 0.97rem; }
.lamp label { display: block; font-size: 0.95rem; color: var(--muted); margin-bottom: 0.4rem; }

/* Colour band slider: warm white to cool white */
.band {
  -webkit-appearance: none; appearance: none;
  display: block; width: 100%; height: 30px; margin: 0; background: transparent; cursor: pointer;
}
.band::-webkit-slider-runnable-track {
  height: 16px; border-radius: 999px;
  background: linear-gradient(90deg, #FFB056 0%, #FFF0E0 50%, #BED7FF 100%);
}
.band::-moz-range-track {
  height: 16px; border-radius: 999px;
  background: linear-gradient(90deg, #FFB056 0%, #FFF0E0 50%, #BED7FF 100%);
}
.band::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 30px; height: 30px; margin-top: -7px; border-radius: 50%;
  background: rgb(var(--g)); border: 4px solid #fff; box-shadow: 0 0 0 2px var(--slate), 0 2px 8px rgba(0,0,0,0.5);
}
.band::-moz-range-thumb {
  width: 22px; height: 22px; border-radius: 50%;
  background: rgb(var(--g)); border: 4px solid #fff; box-shadow: 0 0 0 2px var(--slate), 0 2px 8px rgba(0,0,0,0.5);
}
.band:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; border-radius: 8px; }
.band-labels { display: flex; justify-content: space-between; font-size: 0.85rem; color: var(--muted); margin-top: 0.35rem; }

/* Sections */
.section { padding: clamp(2.5rem, 6vw, 4.5rem) 0; }
.section-tint { background: var(--daylight); }
.section-dark { background: var(--slate); color: #fff; }
.section-dark a:not(.btn) { color: var(--mist); }
.section-head { margin-bottom: 2rem; }
.section-link { margin-top: 2rem; }
.page-intro { padding-bottom: clamp(1.5rem, 4vw, 2.5rem); }

.service-grid { display: grid; gap: 0 3rem; grid-template-columns: 1fr; }
.service { padding: 1.4rem 0; border-top: 2px solid var(--slate); }
.service p { margin-bottom: 0.5rem; }
.service .for { color: var(--muted); font-size: 0.95rem; }

.steps { list-style: none; counter-reset: step; margin: 0; padding: 0; display: grid; gap: 1.5rem; }
.steps li { counter-increment: step; padding-top: 1rem; border-top: 2px solid var(--green); }
.steps li::before {
  content: counter(step); display: block;
  font: 800 2rem/1 var(--font-head); color: var(--amber-dark); margin-bottom: 0.5rem;
}

.visit, .visit-light { display: grid; gap: 1.5rem; align-items: center; grid-template-columns: 1fr; }
.visit .hero-actions, .visit-light .hero-actions { margin-top: 0; }

/* Contact */
.contact-grid { display: grid; gap: 2.5rem; grid-template-columns: 1fr; }
.form-row { margin-bottom: 1.1rem; }
label { display: block; font-weight: 600; margin-bottom: 0.35rem; }
input[type="text"], input[type="tel"], input[type="email"], input[type="password"], select, textarea {
  width: 100%; padding: 0.75rem 0.85rem; font: inherit; color: var(--slate);
  background: #fff; border: 1.5px solid #8A95A8; border-radius: 6px;
}
input[aria-invalid="true"], textarea[aria-invalid="true"] { border-color: var(--error); }
textarea { min-height: 150px; resize: vertical; }
.hint { color: var(--muted); font-weight: 400; font-size: 0.95rem; }
.field-error { color: var(--error); font-size: 0.95rem; margin: 0.35rem 0 0; }
.alert { padding: 1rem 1.2rem; border-radius: 8px; border: 1.5px solid; margin-bottom: 1.5rem; }
.alert-ok { border-color: var(--ok); background: #EAF6EF; }
.alert-err { border-color: var(--error); background: #FDECEA; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.map-wide { padding: 0 0 clamp(2.5rem, 6vw, 4.5rem); background: var(--daylight); }
.map-wide iframe { display: block; width: 100%; height: 420px; border: 0; border-radius: 12px; }
@media (max-width: 760px) { .map-wide iframe { height: 320px; } }

/* Projects */
.projects-grid { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
.project { background: #fff; border: 1px solid var(--rule); border-radius: 12px; overflow: hidden; }
.project-img { display: block; aspect-ratio: 4 / 3; background: var(--mist); }
.project-img img { display: block; width: 100%; height: 100%; object-fit: cover; }
.project-body { padding: 1rem 1.2rem 1.3rem; }
.project-body h3 { margin-bottom: 0.4rem; }
.project-body p:last-child { margin-bottom: 0; }
.project-cat { color: var(--green-dark); font-weight: 600; font-size: 0.9rem; margin-bottom: 0.3rem; }
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.75rem; }
.chips a {
  padding: 0.5rem 1rem; border: 1.5px solid var(--slate); border-radius: 999px;
  color: var(--slate); text-decoration: none; font-weight: 600; font-size: 0.95rem;
}
.chips a:hover { background: var(--mist); }
.chips a[aria-current="true"] { background: var(--slate); color: #fff; }
.empty { padding: 1rem 0; }

.lightbox { border: 0; padding: 0; background: transparent; max-width: 94vw; max-height: 94vh; overflow: visible; }
.lightbox::backdrop { background: rgba(14, 18, 27, 0.85); }
.lightbox img { display: block; max-width: 94vw; max-height: 80vh; border-radius: 8px; margin: 0 auto; }
.lightbox-title { color: #fff; text-align: center; margin: 0.75rem auto 0; max-width: none; }
.lightbox-close {
  position: absolute; top: -14px; right: -6px; z-index: 2; width: 44px; height: 44px; border-radius: 50%;
  border: 2px solid #fff; background: var(--slate); color: #fff; font-size: 1.6rem; line-height: 1; cursor: pointer;
}

/* Admin */
.admin { display: grid; gap: 1.5rem; }
.admin-box { background: #fff; border: 1px solid var(--rule); border-radius: 12px; padding: 1.5rem; }
.admin-box.narrow, .narrow { max-width: 420px; }
.admin-box summary { cursor: pointer; font-weight: 600; }
.admin-box summary + form { margin-top: 1rem; }
.admin-list { list-style: none; margin: 0; padding: 0; }
.admin-list li { display: flex; align-items: center; gap: 1rem; padding: 0.75rem 0; border-top: 1px solid var(--rule); }
.admin-list li:first-child { border-top: 0; }
.admin-list img { width: 72px; height: 54px; object-fit: cover; border-radius: 6px; }
.admin-list li > div { flex: 1; }
.btn-small { min-height: 40px; padding: 0.4rem 0.9rem; font-size: 0.95rem; }
select { appearance: auto; }


/* Admin: sections, enquiries, email settings */
.admin-nav { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.admin-nav a { padding: 0.55rem 1rem; border: 1.5px solid var(--slate); border-radius: 999px; color: var(--slate); text-decoration: none; font-weight: 600; background: #fff; }
.admin-nav a:hover { background: var(--mist); }
.admin-nav a[aria-current="page"] { background: var(--slate); color: #fff; }
.badge { display: inline-block; padding: 0.15rem 0.6rem; border-radius: 999px; font-size: 0.82rem; font-weight: 600; background: var(--daylight); color: var(--muted); border: 1px solid var(--rule); }
.badge-ok { background: #EAF6EF; color: #14532D; border-color: #A9D9BB; }
.badge-warn { background: #FFF4DB; color: #7A4B00; border-color: #F0D08A; }
.badge-bad { background: #FDECEA; color: #8C1D18; border-color: #F0B6B2; }
.enq-list { list-style: none; margin: 0; padding: 0; }
.enq { padding: 1.1rem 0; border-top: 1px solid var(--rule); }
.enq:first-child { border-top: 0; }
.enq-head { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem; }
.enq-contact { margin: 0.3rem 0; }
.enq-msg { margin: 0.3rem 0 0.6rem; }
.grid-form { display: grid; gap: 0 1.2rem; grid-template-columns: 1fr; }
.check label { display: flex; gap: 0.6rem; align-items: flex-start; font-weight: 400; }
.check input { margin-top: 0.3rem; }
.presets { margin: 0 0 1rem; display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
@media (min-width: 760px) { .grid-form { grid-template-columns: 1fr 1fr; } }


.diag { list-style: none; margin: 1.2rem 0 0; padding: 0; }
.diag li { display: flex; gap: 0.9rem; align-items: flex-start; padding: 0.7rem 0; border-top: 1px solid var(--rule); }
.diag-mark { flex: none; width: 26px; height: 26px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-weight: 800; font-size: 0.95rem; }
.diag-mark.is-ok { background: #EAF6EF; color: #14532D; border: 1.5px solid #A9D9BB; }
.diag-mark.is-bad { background: #FDECEA; color: #8C1D18; border: 1.5px solid #F0B6B2; }
.diag-mark.is-info { background: var(--daylight); color: var(--muted); border: 1.5px solid var(--rule); }

/* Footer */
.site-footer { background: var(--slate); color: #D9E0EC; padding-top: 3rem; }
.site-footer a { color: #fff; }
.footer-grid { display: grid; gap: 2rem; grid-template-columns: 1fr; }
.footer-logo { display: block; height: 38px; width: auto; margin-bottom: 1rem; }
.footer-head { font-weight: 600; color: #fff; margin-bottom: 0.4rem; }
.footer-base { border-top: 1px solid #36405A; margin-top: 2rem; padding: 1.2rem 0; font-size: 0.95rem; }
.footer-base p { margin: 0; }

.mobile-bar { display: none; }

/* Wider screens */
@media (min-width: 760px) {
  .projects-grid { grid-template-columns: 1fr 1fr; }
  .service-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .visit, .visit-light { grid-template-columns: 1fr auto; }
  .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; }
}
@media (min-width: 900px) {
  .projects-grid { grid-template-columns: repeat(3, 1fr); }
  .hero .wrap { grid-template-columns: 0.85fr 1.15fr; align-items: center; }
  .contact-grid { grid-template-columns: 1.2fr 0.8fr; align-items: start; }
}

@media (max-width: 1040px) { .cta-num { display: none; } }

/* Small screens */
@media (max-width: 760px) {
  .header-cta { display: none; }
  .js .nav-toggle { display: inline-block; }
  .js .nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    background: #fff; border-bottom: 1px solid var(--rule); padding: 0.5rem 1.25rem 1rem; z-index: 50;
  }
  .js .nav.open { display: block; }
  .nav ul { flex-direction: column; gap: 0; }
  .nav a { display: block; padding: 0.8rem 0; }
  .no-js .site-header .wrap { flex-wrap: wrap; }
  .no-js .nav ul { flex-wrap: wrap; flex-direction: row; gap: 1rem; }
}
@media (max-width: 700px) {
  body { padding-bottom: 80px; }
  .mobile-bar {
    display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem;
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
    padding: 0.6rem 0.6rem calc(0.6rem + env(safe-area-inset-bottom));
    background: #fff; border-top: 1px solid var(--rule);
  }
}


/* Brand additions */
.eyebrow { color: var(--green-dark); font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; font-size: 0.85rem; margin-bottom: 0.75rem; }

.stats { background: var(--slate); color: #fff; padding: 2rem 0; }
.stats-grid { display: grid; gap: 1.5rem 1rem; grid-template-columns: 1fr 1fr; }
.stat-value { font: 800 clamp(1.9rem, 4vw, 2.8rem)/1 var(--font-head); color: var(--green-soft); margin: 0 0 0.35rem; }
.stat-label { color: #C9D3E3; margin: 0; font-size: 0.97rem; }

.why-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0 3rem; grid-template-columns: 1fr; }
.why-list li { padding: 1.2rem 0; border-top: 2px solid var(--slate); }
.why-list h3 { margin-bottom: 0.3rem; }
.why-list p { margin: 0; }

.section-cta { background: var(--green-deep); color: #fff; }
.section-cta p { color: #E4F1E8; }
.section-cta .btn-dark { background: #fff; color: var(--green-deep); }
.section-cta .btn-dark:hover { background: #E4F1E8; }
.section-cta .btn-outline-dark { border-color: #fff; color: #fff; }
.section-cta .btn-outline-dark:hover { background: #fff; color: var(--green-deep); }

.prod-grid { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
.prod { background: #fff; border: 1px solid var(--rule); border-radius: 12px; overflow: hidden; display: flex; flex-direction: column; }
.prod-img { height: 250px; background: #fff; border-bottom: 1px solid var(--rule); display: flex; align-items: center; justify-content: center; padding: 1rem; }
.prod-img img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; }
.prod-body { padding: 1.1rem 1.3rem 1.4rem; }
.prod-body h2 { margin-bottom: 0.4rem; }
.prod-body details { margin-top: 0.5rem; }
.prod-body summary { cursor: pointer; font-weight: 600; color: var(--green-dark); }
.series { margin: 0.6rem 0 0; color: var(--muted); font-size: 0.95rem; }

.split { display: grid; gap: 2rem; grid-template-columns: 1fr; align-items: center; }
.split-img { width: 100%; height: auto; border-radius: 12px; }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.fact { background: var(--daylight); border-radius: 12px; padding: 1.2rem; }
.fact-value { font: 800 2rem/1 var(--font-head); margin: 0 0 0.3rem; }
.fact-label { margin: 0; color: var(--muted); font-size: 0.95rem; }
.statement { font: 600 clamp(1.25rem, 2.6vw, 1.6rem)/1.35 var(--font-head); max-width: 40ch; }
.partners { list-style: none; margin: 0 0 1.5rem; padding: 0; display: grid; gap: 0.75rem; grid-template-columns: 1fr 1fr; }
.partners li { border: 1.5px solid var(--rule); border-radius: 10px; padding: 0.9rem 1rem; display: flex; flex-direction: column; }
.partners span { color: var(--muted); font-size: 0.92rem; }
.loc { margin-bottom: 0.9rem; }
.contact-details h2 { margin-top: 1.5rem; }
.contact-details h2:first-child { margin-top: 0; }

@media (min-width: 760px) {
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
  .why-list { grid-template-columns: 1fr 1fr; }
  .why-list.three { grid-template-columns: repeat(3, 1fr); }
  .prod-grid { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1.1fr 0.9fr; gap: 3rem; }
  .partners { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1000px) {
  .prod-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 760px) {
  .brand img { height: 32px; }
}


/* ===== Lighting experience slider ===== */
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

.experience { background: #0B0D0F; }
.slider { position: relative; color: #fff; overflow: hidden; background: #0B0D0F; }
.slides { position: relative; height: clamp(500px, 78vh, 740px); }
.slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity 0.9s ease, visibility 0.9s; }
.slide.is-active { opacity: 1; visibility: visible; }

.slide-media { position: absolute; inset: 0; overflow: hidden; }
.slide-media img { display: block; width: 100%; height: 100%; object-fit: cover; transform-origin: 50% 50%; }
.slide.is-active .slide-media img { animation: kenburns 18s ease-in-out infinite alternate; }
@keyframes kenburns { from { transform: scale(1.03); } to { transform: scale(1.13) translate3d(-1.2%, -1%, 0); } }
.slide-media::after { content: ""; position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background: linear-gradient(90deg, rgba(8, 10, 12, 0.86) 0%, rgba(8, 10, 12, 0.5) 42%, rgba(8, 10, 12, 0) 78%), linear-gradient(0deg, rgba(8, 10, 12, 0.7), rgba(8, 10, 12, 0) 35%); }

/* effects */
.fx { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.fx-sweep .fx { overflow: hidden; }
.fx-sweep .fx::before { content: ""; position: absolute; top: -10%; bottom: -10%; left: 0; width: 38%;
  background: linear-gradient(100deg, transparent 0%, rgba(255, 255, 255, 0.34) 50%, transparent 100%);
  mix-blend-mode: screen; transform: translateX(-120%) skewX(-14deg); }
.slide.is-active .fx-sweep .fx::before { animation: sweep 6.5s ease-in-out infinite; }
@keyframes sweep { 0% { transform: translateX(-120%) skewX(-14deg); } 60%, 100% { transform: translateX(330%) skewX(-14deg); } }

.fx-hue .fx { background: linear-gradient(115deg, #ff2e7e 0%, #7a3cff 38%, #00c2ff 72%, #2eff9c 100%); mix-blend-mode: overlay; opacity: 0.85; }
.slide.is-active .fx-hue .fx { animation: hue 12s linear infinite; }
@keyframes hue { from { filter: hue-rotate(0deg); } to { filter: hue-rotate(360deg); } }

.fx-breathe .fx:not(.fx-glow) { background: #04060a; opacity: 0.6; }
.fx-breathe .fx-glow { background: radial-gradient(ellipse at 62% 62%, rgba(255, 190, 110, 0.55), rgba(255, 190, 110, 0) 62%); mix-blend-mode: screen; opacity: 0; }
.slide.is-active .fx-breathe .fx:not(.fx-glow) { animation: dim 10s ease-in-out infinite; }
.slide.is-active .fx-breathe .fx-glow { animation: glow 10s ease-in-out infinite; }
@keyframes dim { 0%, 100% { opacity: 0.62; } 50% { opacity: 0; } }
@keyframes glow { 0%, 100% { opacity: 0; } 50% { opacity: 1; } }

/* captions */
.slide-caption { position: absolute; z-index: 3; left: max(1.25rem, calc((100% - var(--max)) / 2)); bottom: clamp(5rem, 13vh, 7.5rem); max-width: min(560px, calc(100% - 2.5rem)); }
.slide-caption .kicker { color: var(--green-soft); font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; font-size: 0.85rem; margin-bottom: 0.6rem; }
.slide-caption h3 { font-size: clamp(1.8rem, 4.4vw, 3.2rem); color: #fff; margin-bottom: 0.6rem; text-shadow: 0 2px 18px rgba(0, 0, 0, 0.45); }
.slide-caption p { color: #E3E9F2; text-shadow: 0 1px 10px rgba(0, 0, 0, 0.5); }
.slide-caption .note { font-size: 0.85rem; opacity: 0.8; margin-bottom: 1.1rem; }
.slide.is-active .slide-caption > * { animation: rise 0.8s 0.15s both; }
.slide.is-active .slide-caption > *:nth-child(2) { animation-delay: 0.25s; }
.slide.is-active .slide-caption > *:nth-child(3) { animation-delay: 0.35s; }
.slide.is-active .slide-caption > *:nth-child(4) { animation-delay: 0.45s; }
.slide.is-active .slide-caption > *:nth-child(5) { animation-delay: 0.55s; }
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

/* controls */
.slider-bar { position: absolute; z-index: 6; left: 0; right: 0; bottom: 0; padding-top: 2.2rem; background: linear-gradient(0deg, rgba(5, 7, 10, 0.85), rgba(5, 7, 10, 0)); }
.slider-bar-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-bottom: 0.9rem; }
.slider-tabs { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.slider-tabs button { display: inline-flex; align-items: center; gap: 0.5rem; min-height: 44px; padding: 0 0.9rem; background: rgba(255, 255, 255, 0.1); color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.28); border-radius: 999px; font: 600 0.93rem var(--font-body); cursor: pointer; }
.slider-tabs button:hover { background: rgba(255, 255, 255, 0.2); }
.slider-tabs button[aria-current="true"] { background: #fff; color: var(--slate); border-color: #fff; }
.slider-tabs .num { font-weight: 800; }
.slider-ctrl { display: flex; gap: 0.5rem; }
.slider-ctrl button { width: 46px; height: 46px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; cursor: pointer;
  background: rgba(255, 255, 255, 0.12); color: #fff; border: 1.5px solid rgba(255, 255, 255, 0.35); }
.slider-ctrl button:hover:not(:disabled) { background: #fff; color: var(--slate); }
.slider-ctrl button:disabled { opacity: 0.35; cursor: default; }
.slider-play .ic-play { display: none; }
.slider-play.is-paused .ic-play { display: block; }
.slider-play.is-paused .ic-pause { display: none; }
.slider :focus-visible { outline: 3px solid #fff; outline-offset: 3px; }
.slider-progress { height: 3px; background: rgba(255, 255, 255, 0.18); position: relative; }
.slider-progress::after { content: ""; position: absolute; inset: 0; background: var(--green-soft); transform: scaleX(0); transform-origin: 0 50%; }
.slider-progress.is-running::after { animation: progress 7s linear forwards; }
@keyframes progress { to { transform: scaleX(1); } }

/* 3D walkthrough */
.slide-walk { background: #07080a; }
.walk { position: absolute; inset: 0; }
.walk-stage { position: absolute; inset: 0; touch-action: pan-y; cursor: grab; }
.walk-stage.is-dragging { cursor: grabbing; }
.walk-stage canvas { display: block; width: 100%; height: 100%; }
.slide-walk::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 46%; z-index: 2; pointer-events: none; background: linear-gradient(180deg, rgba(5, 7, 10, 0.8), rgba(5, 7, 10, 0)); }
.slide-walk .slide-caption { top: 1.6rem; bottom: auto; pointer-events: none; }
.slide-walk .slide-caption h3 { font-size: clamp(1.5rem, 3.2vw, 2.3rem); }
.walk-status { position: absolute; z-index: 3; left: 50%; top: 50%; transform: translate(-50%, -50%); margin: 0; color: #E3E9F2; text-align: center; max-width: 80%; }
.walk-ui { position: absolute; z-index: 4; left: 0; right: 0; bottom: 5.4rem; display: flex; justify-content: center; align-items: center; gap: 0.6rem; flex-wrap: wrap; padding: 0 1rem; }
.walk-scenes { display: flex; gap: 0.4rem; flex-wrap: wrap; justify-content: center; }
.walk-ui button { display: inline-flex; align-items: center; gap: 0.5rem; min-height: 44px; padding: 0 1rem; border-radius: 999px; cursor: pointer;
  background: rgba(10, 12, 15, 0.7); color: #fff; border: 1.5px solid rgba(255, 255, 255, 0.35); font: 600 0.93rem var(--font-body); backdrop-filter: blur(6px); }
.walk-ui button:hover { background: rgba(255, 255, 255, 0.18); }
.walk-ui button[aria-pressed="true"][data-scene] { background: #fff; color: var(--slate); border-color: #fff; }
.walk-ui i { width: 14px; height: 14px; border-radius: 50%; background: var(--sw, #fff); border: 1px solid rgba(0, 0, 0, 0.35); display: inline-block; }
.walk-ui .sw-rainbow { background: conic-gradient(#ff2e7e, #ffb300, #2eff9c, #00c2ff, #7a3cff, #ff2e7e); }
.walk-hint { position: absolute; z-index: 3; left: 50%; bottom: 9.2rem; transform: translateX(-50%); margin: 0; padding: 0.35rem 0.9rem; border-radius: 999px;
  background: rgba(10, 12, 15, 0.6); color: #E3E9F2; font-size: 0.88rem; transition: opacity 0.6s; white-space: nowrap; }
.walk-hint.is-hidden { opacity: 0; pointer-events: none; }

@media (max-width: 760px) {
  .slides { height: clamp(520px, 82vh, 700px); }
  .slider-tabs .lbl { display: none; }
  .slider-tabs { flex-wrap: nowrap; gap: 0.3rem; }
  .slider-tabs button { padding: 0; width: 40px; min-height: 40px; justify-content: center; }
  .slider-bar-inner { gap: 0.5rem; }
  .slider-ctrl { gap: 0.3rem; }
  .slide-caption { bottom: 5.4rem; }
  .walk-ui { bottom: 5rem; }
  .walk-hint { bottom: 15.6rem; }
  .walk-ui button { padding: 0 0.75rem; font-size: 0.85rem; }
  .slider-ctrl button { width: 40px; height: 40px; }
}
@media (prefers-reduced-motion: reduce) {
  .slide-media img, .fx, .fx::before, .slide-caption > * { animation: none !important; }
  .slide { transition: none; }
  .slider-progress { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}