/*
 * Groove Protocol SIGNAL VOICES long-form composition.
 *
 * Opt-in only through .gp-sig-story--longform. Existing classic SIGNAL stories
 * remain untouched. This file owns presentation only. Interview source text and
 * publication state remain in the SIGNAL source/staging/registry layers.
 */

/* ---------- SIGNAL VOICES long-form composition ----------
   Opt-in via layout_variant=longform. Existing SIGNAL 001-005 retain the
   accepted classic story geometry until individually promoted to this variant. */
.gp-sig-story--longform{
  --gp-rail: 210px;
  --gp-spine: 760px;
  --gp-gutter: clamp(36px,4vw,58px);
}

.gp-sig-story--longform .gp-sig-story__hero{
  padding: clamp(34px,4vw,64px) 0 clamp(42px,5vw,78px);
}
.gp-sig-story--longform .gp-sig-story__hero-grid{
  grid-template-columns: minmax(0,1fr);
  gap: clamp(34px,4.5vw,68px);
  align-items: start;
}
.gp-sig-story--longform .gp-sig-story__hero-lead{
  max-width: 1040px;
}
.gp-sig-story--longform .gp-sig-story__eyebrow{
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 18px 0 16px;
  color: var(--gp-sig-muted);
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: 12px;
}
.gp-sig-story--longform .gp-sig-story__artist{
  font-size: clamp(17px,1.45vw,22px);
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--gp-sig-accent-2);
}
.gp-sig-story--longform .gp-sig-story__title{
  margin-top: 14px;
  max-width: 16ch;
  font-size: clamp(46px,7.4vw,92px);
  line-height: .96;
  font-weight: 600;
  letter-spacing: -.045em;
  text-wrap: balance;
}
.gp-sig-story--longform .gp-sig-story__standfirst{
  margin-top: clamp(22px,2.6vw,36px);
  max-width: 64ch;
  font-size: clamp(19px,1.7vw,24px);
  line-height: 1.52;
}
.gp-sig-story--longform .gp-sig-story__byline{
  max-width: 920px;
  margin-top: clamp(26px,3vw,42px);
}
.gp-sig-story--longform .gp-sig-story__hero-figure{
  width: 100%;
  max-width: none;
}
.gp-sig-story--longform .gp-sig-story__hero-figure picture{
  display: block;
}
.gp-sig-story--longform .gp-sig-story__hero-figure img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: auto;
  object-fit: initial;
  object-position: initial;
}

.gp-sig-story--longform .gp-sig-story__opener{
  padding-top: clamp(48px,6vw,88px);
  padding-bottom: clamp(42px,5vw,72px);
}
.gp-sig-story--longform .gp-sig-lead{
  font-size: clamp(18px,1.4vw,20px);
  line-height: 1.76;
}
.gp-sig-story--longform .gp-sig-lead--first{
  font-size: clamp(21px,1.85vw,27px);
  line-height: 1.58;
}

.gp-sig-story--longform .gp-sig-chapter{
  padding: clamp(52px,6vw,88px) 0;
}
.gp-sig-story--longform .gp-sig-chapter__num{
  grid-column: 1;
  grid-row: 1;
  padding-top: 9px;
  font-size: 13px;
  letter-spacing: .12em;
}
.gp-sig-story--longform .gp-sig-chapter__title{
  grid-column: 2;
  grid-row: 1;
  margin-bottom: 26px;
  font-size: clamp(30px,3.3vw,46px);
  line-height: 1.06;
  letter-spacing: -.032em;
  text-wrap: balance;
}
.gp-sig-story--longform .gp-sig-chapter__question{
  grid-column: 2;
  grid-row: 2;
  margin: 0 0 28px;
  max-width: 68ch;
  font-size: clamp(17px,1.35vw,19px);
  line-height: 1.62;
  font-style: normal;
  font-weight: 550;
  color: var(--gp-sig-ink-dim);
}
.gp-sig-story--longform .gp-sig-chapter__body{
  grid-column: 2;
  grid-row: 3;
}
.gp-sig-story--longform .gp-sig-chapter__answer p{
  font-size: clamp(18px,1.38vw,20px);
  line-height: 1.78;
  margin-bottom: 22px;
}
.gp-sig-story--longform .gp-sig-pullquote--emphasis{
  margin: clamp(38px,4.5vw,62px) -72px;
  padding: 22px 0 0;
}
.gp-sig-story--longform .gp-sig-pullquote--emphasis p{
  font-size: clamp(28px,3.5vw,48px);
  line-height: 1.08;
  letter-spacing: -.035em;
  text-wrap: balance;
}

/* Structured editorial interruptions. These are outside artist answer fields. */
.gp-sig-story--longform .gp-sig-editorial-module{
  padding: 0 0 clamp(48px,5vw,76px);
}
.gp-sig-story--longform .gp-sig-editorial-module__inner{
  max-width: 960px;
  margin-inline: auto;
  padding-top: 18px;
  border-top: 1px solid var(--gp-sig-line);
}
.gp-sig-story--longform .gp-sig-editorial-module__label{
  margin: 0 0 20px;
  font-size: 12px;
  line-height: 1.4;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--gp-sig-muted);
}
.gp-sig-story--longform .gp-sig-editorial-module__title{
  margin: 0 0 24px;
  max-width: 24ch;
  font-size: clamp(24px,2.4vw,34px);
  line-height: 1.08;
  letter-spacing: -.025em;
  color: #fff;
}
.gp-sig-story--longform .gp-sig-timeline{
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: flex-start;
  gap: 0;
  counter-reset: gp-signal-timeline;
}
.gp-sig-story--longform .gp-sig-timeline li{
  position: relative;
  flex: 1 1 0;
  min-width: 0;
  padding: 24px 14px 0 0;
  border-top: 1px solid var(--gp-sig-accent);
  font-size: 14px;
  line-height: 1.35;
  color: var(--gp-sig-ink-dim);
}
.gp-sig-story--longform .gp-sig-timeline li::before{
  content: '';
  position: absolute;
  top: -4px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gp-sig-accent-2);
}
.gp-sig-story--longform .gp-sig-stat__value{
  margin: 0;
  font-size: clamp(64px,10vw,140px);
  line-height: .84;
  letter-spacing: -.055em;
  font-weight: 650;
  color: #fff;
}
.gp-sig-story--longform .gp-sig-stat__label{
  margin: 16px 0 0;
  font-size: clamp(20px,2vw,28px);
  color: var(--gp-sig-ink);
}
.gp-sig-story--longform .gp-sig-stat__attribution{
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--gp-sig-muted);
}

/* Optional codas keep source Q&A intact but signal a different editorial role. */
.gp-sig-story--longform .gp-sig-aux{
  padding: clamp(48px,5vw,76px) 0;
  border-top: 1px solid var(--gp-sig-line);
}
.gp-sig-story--longform .gp-sig-aux--side-signal{
  background: rgba(244,242,238,.025);
}
.gp-sig-story--longform .gp-sig-aux__label{
  padding-top: 7px;
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--gp-sig-accent-2);
}
.gp-sig-story--longform .gp-sig-aux__title{
  margin: 0 0 24px;
  font-size: clamp(28px,3vw,42px);
  line-height: 1.08;
  letter-spacing: -.03em;
  color: #fff;
}
.gp-sig-story--longform .gp-sig-aux__question{
  margin: 0 0 26px;
  font-size: clamp(17px,1.35vw,19px);
  line-height: 1.62;
  font-weight: 550;
  color: var(--gp-sig-ink-dim);
}
.gp-sig-story--longform .gp-sig-aux__answer p{
  margin: 0 0 22px;
  font-size: clamp(18px,1.38vw,20px);
  line-height: 1.78;
  color: var(--gp-sig-ink);
}
.gp-sig-story--longform .gp-sig-aux__answer p:last-child{ margin-bottom: 0; }
.gp-sig-story--longform .gp-sig-aux--last-word .gp-sig-aux__body{ max-width: 680px; }

@media (max-width: 1024px){
  .gp-sig-story--longform{ --gp-rail: 170px; --gp-spine: 680px; --gp-gutter: 34px; }
  .gp-sig-story--longform .gp-sig-story__hero-grid{ grid-template-columns: 1fr; }
  .gp-sig-story--longform .gp-sig-story__hero-figure{ max-width: none; }
  .gp-sig-story--longform .gp-sig-pullquote--emphasis{ margin-inline: -34px; }
}

@media (max-width: 900px){
  .gp-sig-story--longform{ --gp-rail: 0px; --gp-spine: 100%; --gp-gutter: 0px; }
  .gp-sig-story--longform .gp-sig-chapter__num,
  .gp-sig-story--longform .gp-sig-chapter__title,
  .gp-sig-story--longform .gp-sig-chapter__question,
  .gp-sig-story--longform .gp-sig-chapter__body{
    grid-column: 1;
    grid-row: auto;
  }
  .gp-sig-story--longform .gp-sig-chapter__num{ margin-bottom: 10px; }
  .gp-sig-story--longform .gp-sig-chapter__title{ margin-bottom: 18px; }
  .gp-sig-story--longform .gp-sig-chapter__question{ margin-bottom: 24px; }
  .gp-sig-story--longform .gp-sig-pullquote--emphasis{ margin-inline: 0; }
}

@media (max-width: 640px){
  .gp-sig-story--longform .gp-sig-story__title{
    max-width: 18ch;
    font-size: clamp(40px,12.5vw,60px);
  }
  .gp-sig-story--longform .gp-sig-story__standfirst{ font-size: 18px; line-height: 1.55; }
  .gp-sig-story--longform .gp-sig-story__hero-figure img{
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
    object-position: 50% 50%;
  }
  .gp-sig-story--longform .gp-sig-chapter{ padding: 44px 0; }
  .gp-sig-story--longform .gp-sig-chapter__answer p,
  .gp-sig-story--longform .gp-sig-aux__answer p{ font-size: 17px; line-height: 1.72; }
  .gp-sig-story--longform .gp-sig-pullquote--emphasis p{ font-size: clamp(26px,8vw,36px); }
  .gp-sig-story--longform .gp-sig-timeline{
    display: grid;
    grid-template-columns: 1fr;
  }
  .gp-sig-story--longform .gp-sig-timeline li{
    padding: 14px 0 14px 22px;
    border-top: 0;
    border-left: 1px solid var(--gp-sig-accent);
  }
  .gp-sig-story--longform .gp-sig-timeline li::before{
    top: 20px;
    left: -4px;
  }
  .gp-sig-story--longform .gp-sig-stat__value{ font-size: clamp(58px,22vw,96px); }
  .gp-sig-story--longform .gp-sig-aux__label{ margin-bottom: 14px; }
}

/* SIGNAL SYSTEM END */