/* ==========================================================================
   "Como funciona na prática" — passos + celular fixo (scrollytelling)
   Desktop: celular sticky acompanha o passo ativo.
   Mobile: o diálogo vira um painel dentro de cada passo.
   ========================================================================== */

@layer story {
  .story {
    --p: 0;
    position: relative;
    display: grid;
    gap: 2rem;
  }
  .story__steps {
    position: relative;
    display: grid;
    gap: 0;
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .step {
    --node: 3.75rem;
    position: relative;
    display: grid;
    grid-template-columns: var(--node) minmax(0, 1fr);
    column-gap: 1.25rem;
    padding-block-end: 2.75rem;
  }
  .step:last-child {
    padding-block-end: 0;
  }

  /* trilho entre nós: preenche quando o passo seguinte é alcançado */
  .step::before,
  .step::after {
    content: "";
    position: absolute;
    inset-inline-start: calc(var(--node) / 2 - 1px);
    inset-block-start: calc(var(--node) + 0.35rem);
    inset-block-end: -0.35rem;
    inline-size: 2px;
    border-radius: 2px;
  }
  .step::before {
    background: var(--line-strong);
  }
  .step::after {
    background: linear-gradient(180deg, var(--gold-500), var(--gold-300));
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.9s var(--ease-drawer);
  }
  .step:last-child::before,
  .step:last-child::after {
    display: none;
  }
  .step.is-done::after {
    transform: scaleY(1);
  }

  .step__node {
    position: relative;
    display: grid;
    place-items: center;
    inline-size: var(--node);
    block-size: var(--node);
    border-radius: 1.2rem;
    background: var(--surface-2);
    box-shadow: inset 0 0 0 1.5px var(--line-strong), inset 0 1px 0 rgb(255 255 255 / 0.12);
    --ico-size: 2.2rem;
    transition: background-color 0.5s var(--ease-out), box-shadow 0.5s var(--ease-out), transform 0.6s var(--ease-spring);
  }
  .step__num {
    position: absolute;
    inset-block-start: -0.45rem;
    inset-inline-end: -0.45rem;
    display: grid;
    place-items: center;
    inline-size: 1.5rem;
    block-size: 1.5rem;
    border-radius: 50%;
    background: var(--gold-500);
    color: var(--forest-900);
    font-size: 0.78rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    box-shadow: 0 0 0 3px var(--bg);
  }
  .step.is-active .step__node {
    background: var(--gold-500);
    box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.5), 0 14px 30px -12px rgb(232 186 34 / 0.7);
    transform: scale(1.06);
    --ico: var(--forest-900);
    --ico-accent: var(--forest-800);
    --ico-ink: var(--gold-300);
    --ico-bg: var(--gold-500);
  }
  .step.is-active .step__num {
    background: var(--forest-900);
    color: var(--gold-400);
  }
  .step.is-done .step__node {
    box-shadow: inset 0 0 0 1.5px var(--gold-500), inset 0 1px 0 rgb(255 255 255 / 0.12);
  }

  .step__body {
    display: grid;
    align-content: start;
    gap: 0.5rem;
    padding-block-start: 0.35rem;
  }
  .step__body h3 {
    font-size: var(--fs-xl);
  }
  .step__body p {
    color: var(--text-2);
    font-size: var(--fs-lg);
    max-inline-size: 38ch;
  }

  /* Diálogo embutido (mobile / tablet) */
  .step__chat {
    display: grid;
    gap: 0.45rem;
    margin-block-start: 0.9rem;
    padding: 0.9rem;
    border-radius: 1.25rem;
    background: rgb(7 23 12 / 0.45);
    box-shadow: inset 0 0 0 1px var(--line);
  }

  /* ---------- Balões (compartilhados com o celular) ---------- */
  .msg {
    max-inline-size: 88%;
    padding: 0.6rem 0.85rem;
    border-radius: 1rem;
    font-size: 0.9rem;
    line-height: 1.42;
    color: #0b2412;
    box-shadow: 0 1px 1px rgb(0 0 0 / 0.14);
    text-wrap: pretty;
  }
  .msg p {
    margin: 0;
    color: inherit;
    font-size: inherit;
    max-inline-size: none;
  }
  .msg--in {
    justify-self: start;
    background: #fff;
    border-start-start-radius: 0.3rem;
  }
  .msg--out {
    justify-self: end;
    background: #d6f5cf;
    border-start-end-radius: 0.3rem;
  }
  .msg__card {
    display: grid;
    gap: 0.4rem;
    margin-block-start: 0.45rem;
    padding: 0.55rem 0.65rem;
    border-radius: 0.7rem;
    background: var(--mist-100);
    box-shadow: inset 0 0 0 1px var(--mist-200);
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--forest-800);
  }
  .msg__card span:last-child {
    display: block;
    block-size: 0.4rem;
    inline-size: 70%;
    border-radius: 1rem;
    background: var(--mist-300);
  }
  .msg__card span:first-child {
    display: flex;
    align-items: center;
    gap: 0.4rem;
  }
  .msg__card .ico {
    --ico-size: 1.2rem;
    --ico: var(--forest-800);
    --ico-accent: var(--gold-600);
  }

  /* ---------- Celular (desktop) ---------- */
  .phone {
    display: none;
  }

  @media (min-width: 64rem) {
    .story {
      grid-template-columns: minmax(0, 1fr) minmax(0, 24rem);
      gap: clamp(3rem, 7vw, 8rem);
      align-items: start;
    }
    .step {
      min-block-size: 34vh;
      padding-block-end: 4.5vh;
    }
    .step__chat {
      display: none;
    }
    /* destaca o passo ativo, esmaece os demais */
    .step__body,
    .step__node {
      transition: opacity 0.6s var(--ease-out), background-color 0.5s var(--ease-out), box-shadow 0.5s var(--ease-out), transform 0.6s var(--ease-spring);
    }
    .js .step:not(.is-active):not(.is-done) .step__body {
      opacity: 0.8;
    }
    .js .step.is-done .step__body {
      opacity: 0.9;
    }
    .phone {
      display: block;
      position: sticky;
      inset-block-start: 6.5rem;
    }
  }

  .phone__frame {
    position: relative;
    inline-size: 100%;
    max-inline-size: 22.5rem;
    margin-inline: auto;
    block-size: min(44rem, calc(100dvh - 8.5rem));
    min-block-size: 30rem;
    padding: 0.7rem;
    border-radius: 3.1rem;
    background: linear-gradient(155deg, #234a2c, #0a1a0f 55%, #123119);
    box-shadow: inset 0 0 0 1.5px rgb(255 255 255 / 0.16), inset 0 2px 0 rgb(255 255 255 / 0.18), 0 60px 90px -44px rgb(0 0 0 / 0.85), 0 0 0 1px rgb(0 0 0 / 0.35);
    display: grid;
    grid-template-rows: auto minmax(0, 1fr) auto;
    overflow: hidden;
  }
  .phone__top {
    position: absolute;
    inset-block-start: 0.95rem;
    inset-inline: 0;
    margin-inline: auto;
    inline-size: 4.8rem;
    block-size: 1.2rem;
    border-radius: 1rem;
    background: #050d08;
    z-index: 2;
  }
  .phone__bar {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 2.3rem 1rem 0.75rem;
    border-start-start-radius: 2.4rem;
    border-start-end-radius: 2.4rem;
    background: #0f3a1d;
    color: #f4f7f1;
  }
  .phone__avatar {
    display: grid;
    place-items: center;
    inline-size: 2.35rem;
    block-size: 2.35rem;
    border-radius: 50%;
    background: var(--forest-950);
    box-shadow: inset 0 0 0 1.5px var(--gold-500);
  }
  .phone__avatar svg {
    inline-size: 0.95rem;
    block-size: 1.15rem;
  }
  .phone__who {
    display: grid;
    line-height: 1.2;
  }
  .phone__who strong {
    font-size: 0.95rem;
  }
  .phone__who small {
    font-size: 0.72rem;
    color: rgb(244 247 241 / 0.7);
  }
  .phone__screen {
    position: relative;
    overflow: hidden;
    background: #0b2412;
    background-image: radial-gradient(circle at 20% 10%, rgb(232 186 34 / 0.07), transparent 40%), radial-gradient(rgb(255 255 255 / 0.04) 1px, transparent 1.2px);
    background-size: auto, 14px 14px;
    -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 14%);
    mask-image: linear-gradient(to bottom, transparent 0, #000 14%);
  }
  .phone__track {
    display: grid;
    gap: 1rem;
    padding: 1.1rem 0.9rem 1.2rem;
    transition: translate 0.9s var(--ease-drawer);
  }
  .phone__input {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.7rem 0.8rem 1rem;
    background: #0f3a1d;
    border-end-start-radius: 2.4rem;
    border-end-end-radius: 2.4rem;
  }
  .phone__input span {
    flex: 1;
    padding: 0.6rem 1rem;
    border-radius: var(--r-pill);
    background: rgb(255 255 255 / 0.1);
    font-size: 0.8rem;
    color: rgb(244 247 241 / 0.82);
  }
  .phone__input i {
    display: grid;
    place-items: center;
    inline-size: 2.3rem;
    block-size: 2.3rem;
    border-radius: 50%;
    background: var(--gold-500);
  }
  .phone__input i svg {
    inline-size: 1.15rem;
    block-size: 1.15rem;
    fill: var(--forest-900);
  }

  .scene {
    display: grid;
    gap: 0.5rem;
  }
  .scene + .scene {
    padding-block-start: 0.35rem;
  }
  .row {
    display: grid;
  }
  .row > * {
    grid-area: 1 / 1;
  }
  .row .msg {
    opacity: 0;
    scale: 0.92;
    translate: 0 0.7rem;
    transition: opacity 0.35s var(--ease-out), scale 0.5s var(--ease-spring), translate 0.5s var(--ease-out);
  }
  .row--in .msg {
    transform-origin: 0 0;
  }
  .row--out .msg {
    transform-origin: 100% 0;
  }
  .row.is-shown .msg {
    opacity: 1;
    scale: 1;
    translate: 0 0;
  }
  .typing {
    align-self: start;
    justify-self: start;
    display: inline-flex;
    gap: 0.28rem;
    padding: 0.78rem 0.95rem;
    border-radius: 1rem;
    border-start-start-radius: 0.3rem;
    background: #fff;
    opacity: 0;
    scale: 0.85;
    transform-origin: 0 0;
    transition: opacity 0.2s var(--ease-out), scale 0.35s var(--ease-spring);
  }
  .typing i {
    inline-size: 0.42rem;
    block-size: 0.42rem;
    border-radius: 50%;
    background: #7c9484;
  }
  .row.is-typing .typing {
    opacity: 1;
    scale: 1;
  }
  .row.is-typing .msg {
    opacity: 0;
  }
  @media (prefers-reduced-motion: no-preference) {
    .row.is-typing .typing i {
      animation: dot-bounce 0.9s var(--ease-in-out) infinite;
    }
    .row.is-typing .typing i:nth-child(2) {
      animation-delay: 0.13s;
    }
    .row.is-typing .typing i:nth-child(3) {
      animation-delay: 0.26s;
    }
  }

  /* Linha de segurança */
  .safe {
    display: flex;
    align-items: flex-start;
    gap: 1.1rem;
    padding: 1.25rem 1.4rem;
    border-radius: var(--r-lg);
    background: rgb(232 186 34 / 0.12);
    box-shadow: inset 0 0 0 1px rgb(232 186 34 / 0.45);
    color: var(--text);
    font-size: var(--fs-lg);
    line-height: 1.55;
  }
  .safe .ico {
    --ico-size: 2.4rem;
    margin-block-start: 0.1rem;
  }
  .safe p {
    max-inline-size: 62ch;
  }
}