/* ==========================================================================
   Diseño Industrial — estudio 3D, proceso, áreas, herramientas,
   proyectos y videos
   ========================================================================== */

/* Mini banco 3D en la portada */
.mini3d { position: relative; width: min(100%, 380px); aspect-ratio: 1; margin-left: auto; cursor: grab; }
.mini3d:active { cursor: grabbing; }
.mini3d canvas { display: block; width: 100% !important; height: 100% !important; }
.mini3d::before { content: ''; position: absolute; inset: 14%; border-radius: 50%; background: radial-gradient(circle, rgba(58,182,210,.22), transparent 68%); z-index: -1; }
.mini3d-hint { position: absolute; left: 50%; bottom: 4px; transform: translateX(-50%); font-size: .8125rem; color: var(--muted); white-space: nowrap; opacity: 0; transition: opacity .4s; pointer-events: none; }
.mini3d.is-ready .mini3d-hint { opacity: 1; }

/* ---------- Estudio 3D ---------- */
.estudio-sec { background: #0A1C24; color: var(--white); }
.estudio-sec .section-head p { color: var(--on-dark); }
.estudio-sec .eyebrow { color: var(--cyan-light); }
.estudio { display: grid; grid-template-columns: minmax(0, 1fr) 300px; grid-template-areas: "top top" "stage param" "modes param" "nota nota"; gap: 14px 20px; }
.st-bar--top { grid-area: top; }
.st-stage { grid-area: stage; position: relative; border-radius: 22px; overflow: hidden; height: min(68vh, 620px); min-height: 380px; background: radial-gradient(ellipse at 50% 35%, #213C4A, #0E232D 70%); border: 1px solid rgba(255,255,255,.08); transition: background .5s; }
.st-bar--modes { grid-area: modes; }
.st-param { grid-area: param; }
.st-nota { grid-area: nota; font-size: .875rem; color: var(--on-dark); }
.st-view { position: absolute; inset: 0; }
.st-view canvas { display: block; width: 100% !important; height: 100% !important; touch-action: none; cursor: grab; }
.st-view canvas:active { cursor: grabbing; }
/* Fondos de cada vista: boceto en papel, CAD como un programa técnico */
.estudio[data-vista="cad"] .st-stage, .estudio[data-vista="explotada"] .st-stage { background: linear-gradient(180deg, #EEF3F7 0%, #C9D6E0 100%); }
.estudio[data-vista="boceto"] .st-stage { background-color: #FBFAF6; background-image: linear-gradient(rgba(58,120,180,.10) 1px, transparent 1px), linear-gradient(90deg, rgba(58,120,180,.10) 1px, transparent 1px); background-size: 24px 24px; }
.estudio[data-vista="boceto"] .st-view canvas { filter: url(#lapiz) contrast(1.05); }
.st-hud { position: absolute; left: 16px; top: 14px; display: flex; flex-direction: column; gap: 4px; pointer-events: none; font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; font-size: .75rem; letter-spacing: .04em; color: rgba(255,255,255,.75); }
.st-hud-mode::before { content: 'RENDER · PBR'; }
.estudio[data-vista="cad"] .st-hud-mode::before { content: 'CAD · SÓLIDO CON ARISTAS'; }
.estudio[data-vista="explotada"] .st-hud-mode::before { content: 'CAD · VISTA EXPLOTADA'; }
.estudio[data-vista="boceto"] .st-hud-mode::before { content: 'BOCETO · LÍNEA'; }
.estudio[data-vista="cad"] .st-hud, .estudio[data-vista="explotada"] .st-hud, .estudio[data-vista="boceto"] .st-hud { color: #34495A; }
.st-triad { position: absolute; left: 16px; bottom: 14px; width: 54px; height: 54px; pointer-events: none; opacity: 0; transition: opacity .4s; }
.estudio[data-vista="cad"] .st-triad, .estudio[data-vista="explotada"] .st-triad { opacity: 1; }
.st-triad i { position: absolute; left: 6px; bottom: 6px; height: 2px; width: 36px; transform-origin: 0 50%; font-style: normal; font-size: .625rem; font-weight: 700; }
.st-triad i::after { position: absolute; right: -10px; top: -6px; }
.st-triad .x { background: #D9372B; color: #D9372B; transform: rotate(-12deg); }
.st-triad .y { background: #2FA34A; color: #2FA34A; transform: rotate(-90deg); }
.st-triad .z { background: #2A6FD6; color: #2A6FD6; transform: rotate(-150deg); width: 26px; }
.st-tools { position: absolute; right: 12px; top: 12px; display: flex; gap: 6px; }
.st-tools button { width: 40px; height: 40px; border-radius: 12px; border: 1px solid rgba(255,255,255,.18); background: rgba(10,28,36,.55); color: var(--white); display: grid; place-items: center; cursor: pointer; backdrop-filter: blur(6px); }
.st-loading { position: absolute; inset: 0; display: none; place-items: center; align-content: center; gap: 12px; color: var(--on-dark); font-size: .9375rem; z-index: 2; }
.st-loading span { width: 44px; height: 44px; border-radius: 50%; border: 3px solid rgba(255,255,255,.18); border-top-color: var(--cyan); animation: girar 0.9s linear infinite; }
@keyframes girar { to { transform: rotate(360deg); } }
.estudio.is-loading .st-loading, .estudio:not(.is-ready):not(.is-error) .st-loading { display: grid; }
.st-fallback { display: none; position: absolute; inset: 0; place-items: center; text-align: center; padding: 24px; color: var(--on-dark); }
.estudio.is-error .st-fallback { display: grid; }
/* Barras de botones */
.st-bar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.st-bar button { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 16px; border-radius: 999px; border: 1.5px solid rgba(255,255,255,.18); background: rgba(255,255,255,.05); color: var(--white); font: inherit; font-weight: 600; cursor: pointer; transition: background .15s, border-color .15s, transform .2s cubic-bezier(.3,1.6,.5,1); }
.st-bar button .ic { width: 20px; height: 20px; color: var(--cyan-light); }
.st-bar button:hover { background: rgba(255,255,255,.12); transform: translateY(-2px); }
.st-bar button[aria-pressed="true"] { background: var(--cyan); border-color: var(--cyan); color: #06222C; }
.st-bar button[aria-pressed="true"] .ic { color: #06222C; }
.st-bar--modes { padding: 6px; border-radius: 999px; background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.08); justify-self: start; }
.st-bar--modes button { border-color: transparent; background: transparent; }
.st-explosion { display: inline-flex; align-items: center; gap: 10px; padding: 0 12px; font-size: .875rem; font-weight: 600; color: var(--on-dark); }
.st-explosion[hidden] { display: none; }
/* Parámetros */
.st-param { display: flex; flex-direction: column; gap: 14px; padding: 20px; border-radius: 22px; background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); align-self: start; }
.st-param[hidden] { display: none; }
.st-param [data-panel] { display: flex; flex-direction: column; gap: 14px; }
.st-param [data-panel][hidden] { display: none; }
.st-apps { display: flex; gap: 6px; }
.st-apps button { flex: 1; min-height: 40px; border-radius: 12px; border: 1.5px solid rgba(255,255,255,.2); background: transparent; color: var(--white); font: inherit; font-weight: 600; font-size: .875rem; cursor: pointer; }
.st-apps button[aria-pressed="true"] { background: var(--cyan); border-color: var(--cyan); color: #06222C; }
.st-param-title { font-family: var(--font-display); font-weight: 700; font-size: 1.125rem; }
.st-param label { display: grid; grid-template-columns: 1fr auto; gap: 6px; font-size: .875rem; font-weight: 600; color: var(--on-dark); }
.st-param label input[type="range"] { grid-column: 1 / -1; }
.st-param output { font-family: ui-monospace, Menlo, Consolas, monospace; color: var(--cyan-light); }
.st-check { display: flex !important; align-items: center; gap: 10px; }
.st-check input { width: 20px; height: 20px; accent-color: var(--cyan); }
input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 28px; background: transparent; cursor: pointer; }
input[type="range"]::-webkit-slider-runnable-track { height: 4px; border-radius: 2px; background: rgba(255,255,255,.2); }
input[type="range"]::-moz-range-track { height: 4px; border-radius: 2px; background: rgba(255,255,255,.2); }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; margin-top: -8px; border-radius: 50%; background: var(--cyan); border: 3px solid #0A1C24; box-shadow: 0 0 0 2px var(--cyan); }
input[type="range"]::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: var(--cyan); border: 3px solid #0A1C24; }
.st-swatches { display: flex; align-items: center; gap: 8px; font-size: .875rem; font-weight: 600; color: var(--on-dark); }
.st-swatches span { width: 80px; }
.st-swatches button { width: 30px; height: 30px; border-radius: 50%; border: 2px solid rgba(255,255,255,.25); background: var(--sw); cursor: pointer; transition: transform .2s; }
.st-swatches button[aria-pressed="true"] { border-color: var(--white); box-shadow: 0 0 0 3px rgba(58,182,210,.6); transform: scale(1.1); }

/* ---------- Proceso ---------- */
.proceso { position: relative; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 20px; padding-top: 34px; }
.pr-line { position: absolute; left: 4%; right: 4%; top: 58px; height: 4px; border-radius: 2px; background: var(--tint); }
.pr-fill { position: absolute; inset: 0; transform-origin: left; transform: scaleX(var(--p, 0)); border-radius: 2px; background: linear-gradient(90deg, var(--c-di), var(--c-adm), var(--c-ing)); }
.pr-paso { position: relative; display: flex; flex-direction: column; gap: 10px; align-items: flex-start; opacity: .45; transform: translateY(16px); transition: opacity .5s, transform .5s; }
.pr-paso.is-on { opacity: 1; transform: none; }
.pr-n { position: absolute; top: -34px; font-family: var(--font-display); font-weight: 700; color: var(--muted); }
.pr-ic { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 16px; background: var(--white); border: 2px solid var(--line); color: var(--cyan-deep); transition: transform .4s cubic-bezier(.3,1.6,.5,1), background .3s, color .3s, border-color .3s; }
.pr-ic .ic { width: 26px; height: 26px; }
.pr-paso.is-on .pr-ic { background: var(--cyan); border-color: var(--cyan); color: #06222C; transform: rotate(-6deg); }
.pr-paso h3 { font-size: 1.25rem; }
.pr-paso p { color: var(--muted-strong); line-height: 1.5; font-size: .9375rem; }
.pr-btn { margin-top: auto; min-height: 40px; padding: 0 14px; border-radius: 999px; border: 1.5px solid var(--cyan-deep); background: transparent; color: var(--cyan-deep); font: inherit; font-weight: 600; font-size: .875rem; cursor: pointer; }
.pr-btn:hover { background: var(--cyan-deep); color: var(--white); }

/* ---------- Áreas ---------- */
.areas { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.area { position: relative; overflow: hidden; padding: 24px; border-radius: 20px; background: var(--white); border: 1px solid var(--line); display: flex; flex-direction: column; gap: 10px; transition: transform .3s cubic-bezier(.3,1.4,.5,1), box-shadow .3s; }
.area::after { content: ''; position: absolute; right: -40px; bottom: -40px; width: 120px; height: 120px; border-radius: 50%; background: var(--c); opacity: .08; transition: transform .5s; }
.area:hover { transform: translateY(-6px); box-shadow: 0 18px 40px rgba(14,47,59,.12); }
.area:hover::after { transform: scale(2.4); }
.area-ic { display: grid; place-items: center; width: 54px; height: 54px; border-radius: 16px; background: color-mix(in srgb, var(--c) 16%, transparent); color: var(--c); transition: transform .4s cubic-bezier(.3,1.6,.5,1); }
.area-ic .ic { width: 30px; height: 30px; }
.area:hover .area-ic { transform: rotate(-10deg) scale(1.1); }
.area h3 { font-size: 1.125rem; }
.area p { color: var(--muted-strong); font-size: .9375rem; line-height: 1.5; }

/* ---------- Herramientas ---------- */
.herramientas { padding: 56px 0; background: var(--ink); color: var(--white); overflow: hidden; }
.herramientas .eyebrow { color: var(--cyan-light); margin-bottom: 20px; }
.marquee { overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee + .marquee { margin-top: 12px; }
.marquee-track { display: flex; gap: 12px; width: max-content; animation: marquee 40s linear infinite; }
.marquee--rev .marquee-track { animation-direction: reverse; animation-duration: 52s; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span { padding: 12px 22px; border-radius: 999px; border: 1.5px solid rgba(255,255,255,.18); font-family: var(--font-display); font-weight: 700; font-size: clamp(1.125rem, .9rem + .8vw, 1.625rem); white-space: nowrap; }
.marquee--rev .marquee-track span { font-family: var(--font-body); font-weight: 500; font-size: 1rem; border-color: rgba(58,182,210,.35); color: var(--cyan-light); }
.herr-note { margin-top: 20px; font-size: .875rem; color: var(--on-dark); }

/* ---------- Proyectos ---------- */
.proyectos-sec { overflow: hidden; }
.pj-arrows { display: flex; gap: 8px; }
.pj-arrows button { width: 48px; height: 48px; border-radius: 50%; border: 1.5px solid rgba(255,255,255,.3); background: transparent; color: var(--white); display: grid; place-items: center; cursor: pointer; }
.pj-arrows button:hover { background: var(--white); color: var(--ink); }
.pj-track { display: flex; gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 4px max(var(--gutter), calc((100vw - var(--container)) / 2 + var(--gutter))) 20px; scrollbar-width: thin; }
.pj-card { position: relative; flex: none; width: min(360px, 78vw); aspect-ratio: 3 / 4; border-radius: 22px; overflow: hidden; scroll-snap-align: start; color: var(--white); text-decoration: none; display: flex; flex-direction: column; justify-content: flex-end; gap: 6px; padding: 22px; isolation: isolate; }
.pj-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; transition: transform .7s ease; }
.pj-card::before { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(transparent 35%, rgba(6,20,26,.92)); }
.pj-card:hover img { transform: scale(1.07); }
.pj-tag { align-self: flex-start; padding: 4px 10px; border-radius: 999px; background: var(--cyan); color: #06222C; font-size: .75rem; font-weight: 700; }
.pj-card h3 { font-size: 1.375rem; line-height: 1.15; }
.pj-card p { color: var(--on-dark); font-size: .9375rem; }

/* ---------- Videos ---------- */
.videos { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.video { margin: 0; display: flex; flex-direction: column; gap: 10px; }
.video--main { grid-column: span 2; grid-row: span 2; }
.video-play, .video iframe { position: relative; display: block; width: 100%; aspect-ratio: 16 / 9; border: 0; padding: 0; border-radius: 18px; overflow: hidden; background: #000; cursor: pointer; }
.video-play img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s, opacity .3s; opacity: .9; }
.video-play:hover img { transform: scale(1.05); opacity: 1; }
.video-ic { position: absolute; top: 50%; left: 50%; width: 64px; height: 64px; margin: -32px 0 0 -32px; border-radius: 50%; display: grid; place-items: center; background: var(--red); color: var(--white); box-shadow: 0 10px 30px rgba(0,0,0,.35); transition: transform .25s cubic-bezier(.3,1.6,.5,1); }
.video-ic .ic { width: 26px; height: 26px; fill: currentColor; margin-left: 3px; }
.video--main .video-ic { width: 84px; height: 84px; margin: -42px 0 0 -42px; }
.video-play:hover .video-ic { transform: scale(1.12); }
.video figcaption { display: flex; flex-direction: column; gap: 2px; }
.video figcaption span { font-size: .875rem; color: var(--muted); }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .estudio { grid-template-columns: minmax(0, 1fr); grid-template-areas: "top" "stage" "modes" "param" "nota"; }
  .proceso { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 40px 20px; }
  .pr-line { display: none; }
  .areas { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 700px) {
  .st-stage { height: 62vh; min-height: 320px; border-radius: 18px; }
  .st-bar--top { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; }
  .st-bar--top button { flex: none; }
  .st-bar--modes { justify-self: stretch; border-radius: 18px; }
  .st-bar--modes button { flex: 1; justify-content: center; padding: 0 8px; }
  .st-bar--modes button span { font-size: .875rem; }
  .proceso { grid-template-columns: minmax(0, 1fr); }
  .areas { grid-template-columns: minmax(0, 1fr); }
  .videos { grid-template-columns: minmax(0, 1fr); }
  .video--main { grid-column: auto; grid-row: auto; }
  .mini3d { width: 260px; margin: 0 auto; }
}
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; flex-wrap: wrap; width: auto; }
  .pr-paso { opacity: 1; transform: none; }
}