/*
 * DIA CAPITAL — Section 09 · Tu cuenta. Tu capital. Tu control. — CANONICAL (V2.1, FROZEN FOR THIS PHASE).
 * Previous implementation archived in src/archive/section-09-v1.0/. Identical to section-09-v2-1.css. Requires the base system (main.css); dia.sections layer,
 * scoped under .dia-apex. Static.
 *
 * A deep-petroleum chapter in both themes (premium glass cards need the dark ground): centred head,
 * four glass cards left, the trading-station render on the right composed INTO the section background
 * (radial halo, edge masks, no frame), then a three-node operating flow. Same tone as Section 07 / 08.
 */

@layer dia.sections {
  .dia-apex .dia-cus2 {
    --cus-bronze: #D2A97C;
    --cus-bronze-hi: #E0A664;
    --cus-blue: #5C9CF0;
    --cus-text: #F2F4F3;
    --cus-muted: #A9B8BE;
    --cus-feather: 3.75rem; /* soft entry / exit so the dark chapter is not a rectangle between light sections */

    position: relative;
    isolation: isolate;
    overflow: hidden;
    padding-block: calc(var(--cus-feather) + var(--space-5));
    color: var(--cus-text);
    background: transparent;
  }

  /* The dark field lives on a feathered layer: in Light mode the page tone shows through at the
     edges and the chapter fades in / out; in Dark mode it is simply a continuous gradient. */
  .dia-apex .dia-cus2::before {
    content: "";
    position: absolute;
    z-index: -1;
    inset: 0;
    pointer-events: none;
    background:
      radial-gradient(ellipse 36% 46% at 74% 52%, rgb(201 138 75 / 0.14), transparent 70%),
      radial-gradient(ellipse 40% 40% at 80% 62%, rgb(92 156 240 / 0.11), transparent 72%),
      radial-gradient(ellipse 80% 70% at 50% 50%, transparent 55%, rgb(2 8 13 / 0.45) 100%),
      linear-gradient(to bottom, #091820, #07141C);
    -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 var(--cus-feather), #000 calc(100% - var(--cus-feather)), transparent 100%);
    mask-image: linear-gradient(to bottom, transparent 0, #000 var(--cus-feather), #000 calc(100% - var(--cus-feather)), transparent 100%);
  }

  /* ---------- Head ---------- */

  .dia-apex .dia-cus2__head {
    display: grid;
    justify-items: center;
    max-inline-size: 52rem;
    margin-inline: auto;
    text-align: center;
  }

  .dia-apex .dia-cus2__eyebrow {
    display: grid;
    justify-items: center;
    row-gap: var(--space-3);
    margin: 0;
    font-size: var(--dia-fs-label);
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--cus-bronze);
  }

  .dia-apex .dia-cus2__eyebrow::before {
    content: "";
    inline-size: var(--space-8);
    block-size: 2px;
    background: var(--dia-bronze);
  }

  .dia-apex .dia-cus2__title {
    margin: var(--space-4) 0 0;
    font-family: var(--font-display);
    font-size: var(--dia-fs-h1);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    text-wrap: balance;
  }

  .dia-apex .dia-cus2__title span { display: inline-block; }

  .dia-apex .dia-cus2__lead {
    margin: var(--space-4) 0 0;
    max-inline-size: 40rem;
    font-size: var(--dia-fs-body);
    line-height: 1.6;
    color: var(--cus-muted);
  }

  /* ---------- Main: cards + scene ---------- */

  .dia-apex .dia-cus2__main {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    column-gap: var(--space-5);
    align-items: center;
    margin-block-start: var(--space-6);
  }

  .dia-apex .dia-cus2__cards {
    position: relative;
    z-index: 2;
    display: grid;
    row-gap: var(--space-3);
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .dia-apex .dia-cus2__card {
    position: relative;
    display: grid;
    grid-template-columns: 4.5rem minmax(0, 1fr);
    column-gap: var(--space-4);
    align-items: center;
    padding: var(--space-3) var(--space-5) var(--space-3) var(--space-4);
    border: 1px solid rgb(255 255 255 / 0.10);
    border-radius: var(--radius-lg);
    background:
      linear-gradient(135deg, rgb(201 138 75 / 0.08), transparent 55%),
      rgb(10 22 29 / 0.62);
    box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.06), 0 18px 40px -26px rgb(0 0 0 / 0.8);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
  }

  /* Soft Bronze edge light on the inner border. */
  .dia-apex .dia-cus2__card::before {
    content: "";
    position: absolute;
    inset-block: var(--space-4);
    inset-inline-start: -1px;
    inline-size: 2px;
    border-radius: 2px;
    background: linear-gradient(to bottom, transparent, var(--cus-bronze-hi), transparent);
  }

  .dia-apex .dia-cus2__icon {
    display: block;
    inline-size: 4.5rem;
    block-size: 4.5rem;
    object-fit: contain;
    filter: drop-shadow(0 6px 14px rgb(0 0 0 / 0.5));
  }

  .dia-apex .dia-cus2__card-title {
    margin: 0;
    font-family: var(--font-body);
    font-size: var(--dia-fs-label);
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--cus-bronze);
  }

  .dia-apex .dia-cus2__card-text {
    margin: var(--space-2) 0 0;
    font-size: var(--dia-fs-small);
    line-height: 1.55;
    color: var(--cus-muted);
    text-wrap: pretty;
  }

  /* The scene: no frame. The render is masked on all sides and sits on a Bronze / blue halo. */
  .dia-apex .dia-cus2__scene {
    position: relative;
    z-index: 1;
    margin-block: calc(-1 * var(--space-7));
    margin-inline-start: calc(-1 * var(--space-8));
    margin-inline-end: calc(-1 * var(--space-6));
  }

  .dia-apex .dia-cus2__scene::before {
    content: "";
    position: absolute;
    inset: -12% -8%;
    pointer-events: none;
    background:
      radial-gradient(ellipse 46% 42% at 52% 50%, rgb(201 138 75 / 0.16), transparent 70%),
      radial-gradient(ellipse 52% 40% at 56% 62%, rgb(92 156 240 / 0.14), transparent 72%);
  }

  .dia-apex .dia-cus2__station {
    position: relative;
    display: block;
    inline-size: 100%;
    block-size: auto;
    -webkit-mask-image:
      radial-gradient(ellipse 50% 52% at 50% 50%, #000 62%, transparent 100%);
    mask-image:
      radial-gradient(ellipse 50% 52% at 50% 50%, #000 62%, transparent 100%);
    filter: drop-shadow(0 30px 40px rgb(0 0 0 / 0.55));
  }

  /* ---------- Flow ---------- */

  .dia-apex .dia-cus2__flow {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: stretch;
    margin: var(--space-6) 0 0;
    padding: var(--space-4) var(--space-5);
    list-style: none;
    border: 1px solid rgb(255 255 255 / 0.09);
    border-radius: var(--radius-xl);
    background:
      linear-gradient(90deg, rgb(201 138 75 / 0.06), transparent 30%, transparent 70%, rgb(92 156 240 / 0.06)),
      rgb(8 18 24 / 0.6);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
  }

  .dia-apex .dia-cus2__node {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    column-gap: var(--space-4);
    align-items: center;
    padding: var(--space-2) var(--space-3);
  }

  .dia-apex .dia-cus2__node-icon {
    display: block;
    inline-size: 4rem;
    block-size: 4rem;
    object-fit: contain;
  }

  /* The official mark needs a light ground; the plate is softened (no pure white, a hairline, a Bronze
     glow) so it reads as a DIA surface rather than a white sticker. The logo itself is untouched. */
  .dia-apex .dia-cus2__logo-plate {
    display: grid;
    place-items: center;
    inline-size: 9rem;
    padding: var(--space-2) var(--space-3);
    border: 1px solid rgb(255 255 255 / 0.28);
    border-radius: var(--radius-md);
    background: linear-gradient(180deg, #E4E9EC, #D6DDE1);
    box-shadow: 0 0 0 1px rgb(201 138 75 / 0.18), 0 10px 26px -14px rgb(0 0 0 / 0.65);
    opacity: 0.94;
  }

  .dia-apex .dia-cus2__logo { display: block; inline-size: 100%; block-size: auto; }

  .dia-apex .dia-cus2__apex {
    display: grid;
    place-items: center;
    inline-size: 4rem;
    block-size: 4rem;
    border: 1px solid color-mix(in srgb, var(--dia-bronze) 60%, transparent);
    border-radius: var(--radius-md);
    background: linear-gradient(160deg, rgb(201 138 75 / 0.18), rgb(10 22 29 / 0.7));
    font-family: var(--font-display);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    color: var(--cus-bronze-hi);
    box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.08);
  }

  .dia-apex .dia-cus2__node-title {
    margin: 0;
    font-family: var(--font-display);
    font-size: var(--dia-fs-h4);
    font-weight: 600;
    line-height: 1.25;
    color: var(--cus-text);
  }

  .dia-apex .dia-cus2__node-sub {
    display: block;
    margin-block-start: 2px;
    font-family: var(--font-body);
    font-size: var(--dia-fs-label);
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--cus-bronze);
  }

  .dia-apex .dia-cus2__node-text {
    margin: var(--space-1) 0 0;
    font-size: var(--dia-fs-small);
    line-height: 1.5;
    color: var(--cus-muted);
    text-wrap: pretty;
  }

  /* Connector: a hairline Bronze → blue with an arrow head (a relationship, not a money flow). */
  .dia-apex .dia-cus2__link {
    position: relative;
    inline-size: clamp(2.5rem, 5vw, 5rem);
    align-self: center;
    block-size: 2px;
    background: linear-gradient(90deg, var(--cus-bronze-hi), var(--cus-blue));
    border-radius: 2px;
  }

  .dia-apex .dia-cus2__link::after {
    content: "";
    position: absolute;
    inset-inline-end: -1px;
    inset-block-start: 50%;
    inline-size: 8px;
    block-size: 8px;
    border-block-start: 2px solid var(--cus-blue);
    border-inline-end: 2px solid var(--cus-blue);
    transform: translateY(-50%) rotate(45deg);
    transform-origin: 70% 30%;
  }

  /* ---------- Compact flow from 1099 px: a clear vertical sequence, nothing squeezed ---------- */

  @media (max-width: 1099px) {
    .dia-apex .dia-cus2__flow {
      grid-template-columns: minmax(0, 1fr);
      row-gap: var(--space-2);
      max-inline-size: 40rem;
      margin-inline: auto;
    }

    .dia-apex .dia-cus2__node {
      grid-template-columns: 9.5rem minmax(0, 1fr);
      justify-items: start;
      align-items: center;
    }

    .dia-apex .dia-cus2__node-icon,
    .dia-apex .dia-cus2__apex { justify-self: center; }

    .dia-apex .dia-cus2__logo-plate { justify-self: center; }

    .dia-apex .dia-cus2__link {
      inline-size: 2px;
      block-size: var(--space-5);
      justify-self: start;
      margin-inline-start: calc(var(--space-3) + 4.75rem);
      background: linear-gradient(180deg, var(--cus-bronze-hi), var(--cus-blue));
    }

    .dia-apex .dia-cus2__link::after {
      inset-inline-end: auto;
      inset-inline-start: 50%;
      inset-block-start: auto;
      inset-block-end: -1px;
      transform: translateX(-50%) rotate(135deg);
    }
  }

  /* ---------- Tablet ---------- */

  @media (max-width: 1023px) {
    .dia-apex .dia-cus2__main {
      grid-template-columns: minmax(0, 1fr);
      row-gap: var(--space-5);
    }

    .dia-apex .dia-cus2__scene {
      order: -1;
      margin: calc(-1 * var(--space-5)) auto calc(-1 * var(--space-4));
      inline-size: min(100%, 40rem);
    }

    .dia-apex .dia-cus2__cards { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-3); }
  }

  /* ---------- Mobile ---------- */

  @media (max-width: 767px) {
    .dia-apex .dia-cus2 { --cus-feather: 3rem; padding-block: calc(var(--cus-feather) + var(--space-3)); }

    .dia-apex .dia-cus2__main { margin-block-start: var(--space-4); row-gap: var(--space-4); }

    .dia-apex .dia-cus2__scene { margin-block: calc(-1 * var(--space-4)) calc(-1 * var(--space-3)); inline-size: min(100% + var(--space-6), 26rem); }

    .dia-apex .dia-cus2__cards { grid-template-columns: minmax(0, 1fr); row-gap: var(--space-2); }

    .dia-apex .dia-cus2__card { grid-template-columns: 3.25rem minmax(0, 1fr); column-gap: var(--space-3); padding: var(--space-3) var(--space-4); }
    .dia-apex .dia-cus2__icon { inline-size: 3.25rem; block-size: 3.25rem; }

    .dia-apex .dia-cus2__flow { margin-block-start: var(--space-5); padding: var(--space-3) var(--space-4); }

    .dia-apex .dia-cus2__node { grid-template-columns: 7.5rem minmax(0, 1fr); padding: var(--space-1) 0; }
    .dia-apex .dia-cus2__logo-plate { inline-size: 7rem; }
    .dia-apex .dia-cus2__link { margin-inline-start: calc(0px + 3.75rem); block-size: var(--space-4); }
  }

  /* Large text scale only: the three flow nodes stack icon above text instead of squeezing the text column. */
  .dia-apex .dia-cus2__flow { container-type: inline-size; }
  @container (max-width: 14em) {
    .dia-apex .dia-cus2__node { grid-template-columns: minmax(0, 1fr); justify-items: start; row-gap: var(--space-2); }
  }
}