/* ====== Diseño minimalista + animaciones suaves ====== */
    :root {
      --bg-1: #0f0f10;
      --bg-2: #121315;
      --card: rgba(255, 255, 255, 0.06);
      --stroke: rgba(255, 255, 255, 0.12);
      --text: #f5f6f7;
      --muted: #a9adb3;
      --brand: #ff620e;
      /* naranja */
      --brand-2: #ffb899;
      /* rosa */
      --ok: #19c37d;
      --err: #ff4d4f;
      --radius: 18px;
      --shadow: 0 10px 30px rgba(0, 0, 0, .35);
      --maxw: 980px;
    }

    * {
      box-sizing: border-box;
    }

    html,
    body {
      height: 100%;
    }

    body {
      margin: 0;
      font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, "Apple Color Emoji", "Segoe UI Emoji";
      color: var(--naranja);
      background: radial-gradient(1200px 800px at 10% 10%, #f0f0f0 0%, transparent 60%), radial-gradient(900px 700px at 90% 20%, #f0f0f0 0%, transparent 60%), linear-gradient(140deg, #f0f0f0, #f0f0f0);
      overflow-x: hidden;
    }

    /* fondo animado sutil */
    .bg-waves {
      position: fixed;
      inset: 0;
      pointer-events: none;
      background:
        radial-gradient(800px 600px at 20% 80%, color-mix(in srgb, #f0f0f0 18%, transparent), transparent 60%),
        radial-gradient(600px 500px at 80% 30%, color-mix(in srgb, #f0f0f0 16%, transparent), transparent 60%);
      filter: blur(2px);
      animation: float 16s ease-in-out infinite alternate;
      opacity: .9;
    }

    @keyframes float {
      0% {
        transform: translateY(-6px) translateX(4px);
      }

      100% {
        transform: translateY(6px) translateX(-4px);
      }
    }

    /* contenedor */
    .container {
      width: min(100% - 24px, var(--maxw));
      margin: 0 auto;
      padding: clamp(18px, 3vw, 28px) 0 60px;
    }

    /* header */
    .header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 22px 0;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 700;
      letter-spacing: .2px;
    }

    .brand .dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--brand), var(--brand-2));
      box-shadow: 0 0 0 6px rgba(255, 98, 14, .08);
    }

    .header .chip {
      border: 1px solid var(--stroke);
      color: var(--muted);
      padding: 8px 12px;
      border-radius: 999px;
      font-size: .9rem;
      backdrop-filter: blur(6px);
    }

    /* tarjeta */
    .card {
      background: #fff;
      border: 1px solid rgba(255, 98, 14, .12);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      overflow: hidden;
      position: relative;
      isolation: isolate;
    }

    .card::before {
      /* brillo diagonal animado del borde */
      content: "";
      position: absolute;
      inset: -1px;
      border-radius: calc(var(--radius) + 1px);
      padding: 1px;
      background:
        linear-gradient(135deg, rgba(255, 255, 255, .06), rgba(255, 255, 255, 0) 30%, rgba(255, 255, 255, .06) 60%, rgba(255, 255, 255, 0)),
        linear-gradient(135deg, color-mix(in srgb, var(--brand) 30%, transparent), color-mix(in srgb, var(--brand-2) 22%, transparent));
      -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
      -webkit-mask-composite: xor;
      mask-composite: exclude;
      animation: glow 4s linear infinite;
      pointer-events: none;
    }

    @keyframes glow {
      0% {
        transform: translateX(-2%);
      }

      100% {
        transform: translateX(2%);
      }
    }

    /* grid interior */
    .grid {
      display: grid;
      gap: 18px;
      grid-template-columns: 1.2fr .8fr;
    }

    @media (max-width: 900px) {
      .grid {
        grid-template-columns: 1fr;
      }
    }

    /* hero */
    .hero {
      padding: clamp(18px, 4vw, 28px);
      border-bottom: 1px dashed #a9adb3;
    }

    h1 {
      font-size: clamp(26px, 4vw, 38px);
      margin: 0 0 6px;
    }

    .sub {
      color: #121315;
      font-size: clamp(14px, 2vw, 16px);
    }

    /* formulario */
    .form {
      padding: clamp(18px, 4vw, 28px);
      display: grid;
      gap: 14px;
    }

    .row {
      display: grid;
      gap: 14px;
      grid-template-columns: 1fr 1fr;
    }

    @media (max-width:700px) {
      .row {
        grid-template-columns: 1fr;
      }
    }

    .field {
      position: relative;
      padding-top: 6px;
    }

    .field.filled .label,
    .field:focus-within .label {
      top: -8px;
      /* sube por encima del borde del input */
      font-size: 11px;
      /* más pequeña */
      color: var(--brand);
      transform: translateY(0);
      /* pastilla para contraste con el borde del input */
      background: linear-gradient(180deg, rgba(15, 15, 16, .85), rgba(15, 15, 16, .85));
      padding: 2px 6px;
      border-radius: 8px;
      box-shadow: 0 0 0 1px color-mix(in srgb, var(--brand) 40%, transparent);
    }

    .input {
      width: 100%;
      background: rgba(255, 255, 255, .35);
      color: #666;
      border: 1px solid #a9adb3;
      border-radius: 14px;
      padding: 20px 14px 14px;
      /* +4px arriba para que el texto nunca choque con la label */
      outline: none;
      font-size: 15px;
      transition: border-color .2s, background .2s, transform .15s ease, box-shadow .2s;
    }

    .input:hover {
      background: #00000020;
    }

    .input:focus {
      border-color: color-mix(in srgb, var(--brand) 60%, #ffffff 0%);
      box-shadow: 0 0 0 6px color-mix(in srgb, var(--brand) 20%, transparent);
      transform: translateY(-1px);
    }

    /* label flotante */
    .label {
      position: absolute;
      left: 12px;
      top: 14px;
      /* sobre el contenido cuando está vacío */
      color: var(--muted);
      font-size: 14px;
      /* legible sin tapar */
      letter-spacing: .2px;
      line-height: 1;
      transform-origin: left top;
      pointer-events: none;
      /* no captura clics */
      transition: transform .15s ease, color .2s, background .2s, opacity .2s, top .15s ease, font-size .15s ease;
      opacity: .9;
    }

    .input::placeholder {
      color: transparent;
    }




    .input:placeholder-shown+.label {
      transform: translateY(10px) scale(1.05);
      color: #9aa0a6;
    }

    /* select */
    select.input {
      appearance: none;
      background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%),
        linear-gradient(135deg, var(--muted) 50%, transparent 50%);
      background-position: calc(100% - 18px) 55%, calc(100% - 13px) 55%;
      background-size: 6px 6px, 6px 6px;
      background-repeat: no-repeat;
    }

    /* textarea */
    textarea.input {
      min-height: 96px;
      resize: vertical;
    }

    /* botón */
    .btn {
      background: linear-gradient(135deg, var(--brand));
      border: none;
      color: #fff;
      font-weight: 800;
      border-radius: 14px;
      padding: 14px 16px;
      cursor: pointer;
      font-size: 16px;
      letter-spacing: .3px;
      transition: transform .12s ease, filter .2s ease, opacity .2s ease;
      position: relative;
      overflow: hidden;
      box-shadow:0 12px 24px rgba(255,98,14,.35); 
    }

    .btn:disabled {
      opacity: .6;
      cursor: not-allowed;
    }

    .btn:hover {
      filter: brightness(1.02);
      transform: translateY(-1px);
    }

    .btn .shine {
      content: "";
      position: absolute;
      inset: 0;
      pointer-events: none;
      background: linear-gradient(120deg, rgba(255, 255, 255, .0) 0%, rgba(255, 255, 255, .35) 45%, rgba(255, 255, 255, .0) 60%);
      transform: translateX(-120%);
      animation: shine 2.4s ease-in-out infinite;
    }

    @keyframes shine {
      0% {
        transform: translateX(-120%);
      }

      100% {
        transform: translateX(120%);
      }
    }

    /* panel lateral */
    .side {
      padding: clamp(18px, 4vw, 28px);
      border-left: 1px dashed #a9adb3;
    }

    @media (max-width:900px) {
      .side {
        border-left: none;
        border-top: 1px dashed #a9adb3;
      }
    }

    .panel {
      display: grid;
      gap: 10px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 10px;
      border: 1px solid #a9adb3;
      border-radius: 999px;
      color: #121315;
      font-size: 12px;
      width: max-content;
    }

    .kpis {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-top: 6px;
    }

    .kpi {
      background: rgba(255, 255, 255, 0.35);
      border: 1px solid #a9adb3;
      border-radius: 14px;
      padding: 16px;
      text-align: center;
    }

    .kpi .big {
      font-weight: 800;
      font-size: 22px;
    }

    .kpi .small {
      color: #666;
      font-size: 12px;
    }

    /* toast */
    .toast {
      position: fixed;
      right: 18px;
      bottom: 18px;
      z-index: 50;
      display: none;
    }

    .toast.show {
      display: flex;
    }

    .toast .box {
      display: flex;
      align-items: center;
      gap: 12px;
      background: rgba(15, 15, 16, .95);
      border: 1px solid var(--stroke);
      border-left: 4px solid var(--ok);
      color: var(--text);
      padding: 12px 14px;
      border-radius: 12px;
      box-shadow: var(--shadow);
      animation: pop .18s ease-out;
    }

    @keyframes pop {
      from {
        transform: translateY(6px);
        opacity: 0;
      }

      to {
        transform: translateY(0);
        opacity: 1;
      }
    }

    /* check animado */
    .check {
      width: 22px;
      height: 22px;
      border-radius: 50%;
      border: 2px solid var(--ok);
      position: relative;
      overflow: hidden;
    }

    .check::after {
      content: "";
      position: absolute;
      left: 5px;
      top: 8px;
      width: 6px;
      height: 12px;
      border-right: 2px solid var(--ok);
      border-bottom: 2px solid var(--ok);
      transform: rotate(40deg) scale(0);
      transform-origin: left top;
      animation: tick .35s ease .1s forwards;
    }

    @keyframes tick {
      to {
        transform: rotate(40deg) scale(1);
      }
    }

    /* errores */
    .err {
      color: var(--err);
      font-size: 13px;
      margin: 6px 0 0 2px;
    }

    /* entrada con transición al aparecer */
    .reveal {
      opacity: 0;
      transform: translateY(8px);
      transition: opacity .4s ease, transform .4s ease;
    }

    .reveal.on {
      opacity: 1;
      transform: translateY(0);
    }