/**
 * Component: Intelligence Workflow
 *
 * Institutional representation of the D1 intelligence pipeline:
 * Input → Analysis → Output.
 */

@layer components {
  /* ==========================================================================
     1. Root
     ========================================================================== */

  .dig-process-steps {
    padding-block: var(--dig-section-space);

    background-color: var(--dig-color-bg);
    border-block: 1px solid var(--dig-color-border-subtle);
  }

  /* ==========================================================================
     2. Header
     ========================================================================== */

  .dig-process-steps__header {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: end;

    margin-bottom: clamp(3rem, 5vw, 4.5rem);
  }

  .dig-process-steps__eyebrow {
    grid-column: 1;

    margin: 0;
    padding-right: clamp(1.5rem, 3vw, 3rem);

    color: var(--dig-color-text);

    font-family: var(--dig-font-mono);
    font-size: var(--dig-font-size-xs);
    font-weight: var(--dig-font-weight-semibold);
    line-height: 1;
    letter-spacing: var(--dig-letter-spacing-mono);
    text-transform: uppercase;
  }

  .dig-process-steps__title {
    grid-column: 2 / 4;

    max-width: 48rem;
    margin: 0;

    color: var(--dig-color-primary);

    font-family: var(--dig-font-primary);
    font-size: clamp(2.25rem, 3.6vw, 3.75rem);
    font-weight: var(--dig-font-weight-bold);
    line-height: var(--dig-line-height-tight);
    letter-spacing: var(--dig-letter-spacing-tight);
    text-align: left;
    text-wrap: balance;
  }

  /* ==========================================================================
     3. Pipeline
     ========================================================================== */

  .dig-process-steps__pipeline {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));

    margin: 0;
    padding: 0;

    border-top: 1px solid var(--dig-color-border);
    border-bottom: 1px solid var(--dig-color-border);

    list-style: none;
  }

  .dig-process-step {
    position: relative;

    display: grid;
    grid-template-rows: auto 1fr;

    min-width: 0;
    min-height: clamp(23rem, 28vw, 28rem);
  }

  .dig-process-step:not(:last-child) {
    border-right: 1px solid var(--dig-color-border);
  }

  /* ==========================================================================
     4. Pipeline Rail
     ========================================================================== */

  .dig-process-step__rail {
    position: relative;

    display: flex;
    align-items: center;

    min-height: clamp(7rem, 9vw, 9rem);
    padding-inline: clamp(1.5rem, 3vw, 2.5rem);
  }

  /*
   * Continuous system line.
   *
   * No arrowheads: this is an institutional processing pipeline,
   * not a setup wizard.
   */
  .dig-process-step__rail::after {
    content: "";

    position: absolute;
    z-index: 0;
    top: 50%;
    right: 0;
    left: 0;

    height: 1px;

    background: color-mix(
      in srgb,
      var(--dig-color-secondary) 55%,
      var(--dig-color-border)
    );
  }

  .dig-process-step:first-child .dig-process-step__rail::after {
    left: clamp(1.5rem, 3vw, 2.5rem);
    top: 50%;
  }

  .dig-process-step:last-child .dig-process-step__rail::after {
    right: calc(100% - clamp(4rem, 5vw, 5rem));
    bottom: 50%;
  }

  .dig-process-step__node {
    position: relative;
    z-index: 1;

    display: inline-flex;
    align-items: center;
    justify-content: center;

    width: clamp(2.5rem, 2.3rem + 0.6vw, 2.875rem);
    height: clamp(2.5rem, 2.3rem + 0.6vw, 2.875rem);

    background-color: var(--dig-color-bg);
    border: 1px solid var(--dig-color-border);
    border-radius: var(--dig-radius-md);

    color: var(--dig-color-primary);

    font-family: var(--dig-font-mono);
    font-size: var(--dig-font-size-xs);
    font-weight: var(--dig-font-weight-bold);
    line-height: 1;
    letter-spacing: var(--dig-letter-spacing-label);
  }

  /*
   * Small cyan system marker.
   * It identifies pipeline nodes without implying an active/current step.
   */
  .dig-process-step__node::after {
    content: "";

    position: absolute;
    top: -0.22rem;
    right: -0.22rem;

    width: 0.4rem;
    height: 0.4rem;

    background-color: var(--dig-color-secondary);
    border: 2px solid var(--dig-color-bg);
    border-radius: var(--dig-radius-full);
  }

  /* ==========================================================================
     5. Stage Content
     ========================================================================== */

  .dig-process-step__content {
    display: flex;
    flex-direction: column;

    padding: clamp(2rem, 8vw, 3rem) var(--dig-spacing-sm)
      clamp(2.125rem, 7vw, 3rem);
  }

  .dig-process-step__role {
    margin: 0 0 clamp(1rem, 1.8vw, 1.35rem);

    color: var(--dig-color-text-muted);

    font-family: var(--dig-font-mono);
    font-size: var(--dig-font-size-xs);
    font-weight: var(--dig-font-weight-semibold);
    line-height: 1;
    letter-spacing: var(--dig-letter-spacing-mono);
    text-transform: uppercase;
  }

  .dig-process-step__title {
    max-width: 21rem;
    margin: 0 0 clamp(1rem, 2vw, 1.35rem);

    color: var(--dig-color-primary);

    font-family: var(--dig-font-primary);
    font-size: clamp(1.125rem, 1.02rem + 0.4vw, 1.375rem);
    font-weight: var(--dig-font-weight-bold);
    line-height: 1.3;
    letter-spacing: var(--dig-letter-spacing-heading);
    text-wrap: balance;
  }

  .dig-process-step__text {
    max-width: 34ch;
    margin: 0;

    color: var(--dig-color-text-muted);

    font-size: clamp(0.9rem, 0.86rem + 0.15vw, 0.975rem);
    line-height: var(--dig-line-height-body);
    text-wrap: pretty;
  }

  /* ==========================================================================
     6. Mobile Pipeline
     ========================================================================== */

  @media (max-width: 48rem) {
    .dig-process-steps__header {
      grid-template-columns: 1fr;
      gap: var(--dig-spacing-md);

      margin-bottom: clamp(2.75rem, 9vw, 4rem);
    }

    .dig-process-steps__eyebrow,
    .dig-process-steps__title {
      grid-column: 1;
    }

    .dig-process-steps__title {
      max-width: 32rem;

      font-size: clamp(2rem, 9vw, 3rem);
    }

    .dig-process-steps__pipeline {
      grid-template-columns: 1fr;

      border-top: 1px solid var(--dig-color-border);
    }

    .dig-process-step {
      grid-template-columns: clamp(3.5rem, 14vw, 4.5rem) minmax(0, 1fr);
      grid-template-rows: auto;

      min-height: auto;
    }

    .dig-process-step:not(:last-child) {
      border-right: 0;
      border-bottom: 1px solid var(--dig-color-border);
    }

    .dig-process-step__rail {
      align-items: flex-start;
      justify-content: center;

      min-height: 100%;
      padding: clamp(2rem, 8vw, 3rem) 0;
    }

    .dig-process-step__rail::after {
      top: 0;
      right: auto;
      bottom: 0;
      left: 50%;

      width: 1px;
      height: auto;
    }

    .dig-process-step:first-child .dig-process-step__rail::after {
      top: clamp(2rem, 8vw, 3rem);
      left: 50%;
    }

    .dig-process-step:last-child .dig-process-step__rail::after {
      right: auto;
      bottom: calc(100% - clamp(4.5rem, 16vw, 5.5rem));
    }

    .dig-process-step__content {
      padding: clamp(2rem, 8vw, 3rem) var(--dig-spacing-sm)
        clamp(2.5rem, 9vw, 3.5rem);
    }

    .dig-process-step__text {
      max-width: 38rem;
    }
  }

  /* ==========================================================================
     7. Motion Preferences
     ========================================================================== */

  @media (prefers-reduced-motion: no-preference) {
    .dig-process-step__node {
      transition:
        border-color var(--dig-transition-fast),
        color var(--dig-transition-fast);
    }

    .dig-process-step:hover .dig-process-step__node {
      border-color: var(--dig-color-secondary);
      color: var(--dig-color-secondary-dark);
    }
  }
}

@layer components {
  /* Cardinality comes from the canonical rendered steps, without new state.
     Three or more retain the existing pipeline; mobile retains its rail. */
  @media (min-width: 48.001rem) {
    .dig-process-steps > .dig-container:has(> .dig-process-steps__pipeline > .dig-process-step:nth-child(-n+2):last-child) {
      display: grid;
    }
    .dig-process-steps__pipeline:has(> .dig-process-step:only-child) {
      grid-template-columns: minmax(0, 1fr);
      width: 100%;
      max-width: 38rem;
      justify-self: center;
    }
    .dig-process-steps__pipeline:has(> .dig-process-step:nth-child(2):last-child) {
      grid-template-columns: repeat(2, minmax(0, 1fr));
      width: 100%;
      max-width: 64rem;
      justify-self: center;
    }
  }
  .dig-process-steps__intro { grid-column: 2 / 4; max-width: 65ch; margin: var(--dig-spacing-md) 0 0; color: var(--dig-color-text-muted); line-height: var(--dig-line-height-body); }
  @media (max-width: 48rem) { .dig-process-steps__intro { grid-column: 1; } }
}

@layer components {
  /* Four canonical items form two complete rows. Services keeps its contextual sequence. */
  @media (min-width: 48.001rem) {
    .dig-process-steps__pipeline:has(> .dig-process-step:nth-child(4):last-child) {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .dig-process-steps__pipeline:has(> .dig-process-step:nth-child(4):last-child) > .dig-process-step {
      min-height: 0;
    }
    .dig-process-steps__pipeline:has(> .dig-process-step:nth-child(4):last-child) > .dig-process-step:nth-child(2) {
      border-right: 0;
    }
  }
}

/* Compact four-step editorial composition; existing Services sequence stays authoritative. */
@layer components {
  .dig-process-steps:not(:where(.d1-service-process *)):has(> .dig-container > .dig-process-steps__pipeline > .dig-process-step:nth-child(4):last-child) .dig-process-steps__header { display: flex; flex-direction: column; align-items: flex-start; gap: .75rem; max-width: 65ch; margin-bottom: clamp(1.5rem, 3vw, 2.5rem); }
  .dig-process-steps:not(:where(.d1-service-process *)):has(> .dig-container > .dig-process-steps__pipeline > .dig-process-step:nth-child(4):last-child) .dig-process-steps__eyebrow { padding: 0; margin: 0; }
  .dig-process-steps:not(:where(.d1-service-process *)):has(> .dig-container > .dig-process-steps__pipeline > .dig-process-step:nth-child(4):last-child) .dig-process-steps__title { max-width: 24ch; margin: 0; font-size: clamp(1.875rem, 2.9vw, 2.75rem); line-height: 1.15; }
  .dig-process-steps:not(:where(.d1-service-process *)):has(> .dig-container > .dig-process-steps__pipeline > .dig-process-step:nth-child(4):last-child) .dig-process-steps__intro { margin: 0; font-size: clamp(1rem, .97rem + .15vw, 1.125rem); line-height: 1.65; }
  .dig-process-steps:not(:where(.d1-service-process *)):has(> .dig-container > .dig-process-steps__pipeline > .dig-process-step:nth-child(4):last-child) .dig-process-steps__pipeline { gap: 0 clamp(1rem, 2vw, 1.5rem); border: 0; border-top: 1px solid color-mix(in srgb, var(--dig-color-border) 65%, transparent); }
  .dig-process-steps:not(:where(.d1-service-process *)):has(> .dig-container > .dig-process-steps__pipeline > .dig-process-step:nth-child(4):last-child) .dig-process-step { grid-template-columns: auto minmax(0, 1fr); grid-template-rows: auto; align-items: start; gap: 1rem; min-height: 0; padding: clamp(1.25rem, 2vw, 2rem) 0; border-right: 0; border-bottom: 1px solid color-mix(in srgb, var(--dig-color-border) 65%, transparent); }
  .dig-process-steps:not(:where(.d1-service-process *)):has(> .dig-container > .dig-process-steps__pipeline > .dig-process-step:nth-child(4):last-child) .dig-process-step__rail { min-height: 0; padding: 0; align-items: flex-start; justify-content: flex-start; }
  .dig-process-steps:not(:where(.d1-service-process *)):has(> .dig-container > .dig-process-steps__pipeline > .dig-process-step:nth-child(4):last-child) .dig-process-step__rail::after { content: none; }
  .dig-process-steps:not(:where(.d1-service-process *)):has(> .dig-container > .dig-process-steps__pipeline > .dig-process-step:nth-child(4):last-child) .dig-process-step__node { width: clamp(2rem, 2.8vw, 2.375rem); height: clamp(2rem, 2.8vw, 2.375rem); background: transparent; border-color: var(--dig-color-border); font-size: var(--dig-font-size-sm); }
  .dig-process-steps:not(:where(.d1-service-process *)):has(> .dig-container > .dig-process-steps__pipeline > .dig-process-step:nth-child(4):last-child) .dig-process-step__node::after { content: none; }
  .dig-process-steps:not(:where(.d1-service-process *)):has(> .dig-container > .dig-process-steps__pipeline > .dig-process-step:nth-child(4):last-child) .dig-process-step__content { padding: 0; }
  .dig-process-steps:not(:where(.d1-service-process *)):has(> .dig-container > .dig-process-steps__pipeline > .dig-process-step:nth-child(4):last-child) .dig-process-step__title { max-width: none; margin: 0 0 .65rem; font-size: clamp(1.25rem, 1.12rem + .45vw, 1.5rem); line-height: 1.25; }
  .dig-process-steps:not(:where(.d1-service-process *)):has(> .dig-container > .dig-process-steps__pipeline > .dig-process-step:nth-child(4):last-child) .dig-process-step__text { max-width: 48ch; font-size: clamp(1rem, .97rem + .15vw, 1.0625rem); line-height: 1.65; }
}