/* V3 Index Card layout — extracted from matgen-variation-styles.js
   Includes V3 main page styles + sub-page (writing/about) styles. */

/* ════════════════════════════════════════════════════════════
   V3: INDEX CARD (neutral graphite)
   ════════════════════════════════════════════════════════════ */

.v3-root {
  position: relative;
  background: #f7f5f0;
  min-height: 100%;
  color: var(--mg-ink-0);
  padding: 0;
}
.v3-grain {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(13,12,16,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13,12,16,0.04) 1px, transparent 1px);
  background-size: 28px 28px;
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
          mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  opacity: 0.7;
}

.v3-topbar {
  position: relative; display: grid; grid-template-columns: 1fr auto 1fr;
  align-items: center; gap: 32px;
  padding: 22px 48px; border-bottom: 1px solid var(--mg-paper-3);
  background: rgba(247,245,240,0.8); backdrop-filter: blur(8px);
}
.v3-brand        { display: flex; align-items: center; gap: 12px; }
.v3-brand__name  { font-family: var(--mg-font-mono); font-size: 16px; font-weight: 500; letter-spacing: -0.5px; color: var(--mg-ink-0); }
.v3-brand__dot   { color: var(--spark-indigo); }
.v3-status {
  display: inline-flex; align-items: center; gap: 8px; white-space: nowrap;
  padding: 4px 10px 4px 9px;
  border: 1px solid var(--mg-paper-3); border-radius: 999px;
  background: rgba(255,255,255,0.6);
  font-family: var(--mg-font-mono); font-size: 11px; letter-spacing: 0.4px;
  color: #4e4a5a;
}
.v3-status__dot {
  width: 7px; height: 7px; border-radius: 50%; background: #2f9866;
  box-shadow: 0 0 0 3px rgba(47,152,102,0.2);
  animation: v3-pulse 2.4s ease-in-out infinite;
}
@keyframes v3-pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(47,152,102,0.2); }
  50%      { box-shadow: 0 0 0 5px rgba(47,152,102,0.06); }
}

.v3-nav {
  display: flex; gap: 28px; justify-self: center;
  font-size: 14px; color: #4e4a5a; font-family: var(--mg-font-sans);
}
.v3-nav a            { transition: color .2s var(--mg-ease); }
.v3-nav a:hover      { color: var(--mg-ink-0); }
.v3-nav a[data-active='true'] { color: var(--mg-ink-0); border-bottom: 1px solid currentColor; padding-bottom: 2px; }

.v3-topbar__cta {
  justify-self: end;
  font-family: var(--mg-font-mono); font-size: 13px;
  color: var(--mg-ink-0);
  padding: 8px 14px; border: 1px solid var(--mg-paper-3); border-radius: 999px;
  transition: all .2s var(--mg-ease);
}
.v3-topbar__cta:hover { background: var(--mg-ink-0); color: #f7f5f0; border-color: var(--mg-ink-0); }
.v3-topbar__right { justify-self: end; display: flex; align-items: center; gap: 14px; }

.v3-main { position: relative; max-width: 1280px; margin: 0 auto; padding: 0 48px; }

/* Hero */
.v3-hero          { padding: 96px 0 64px; max-width: 920px; }
.v3-hero--center  { max-width: 1100px; margin: 0 auto; text-align: center; padding: 96px 0 80px; }
.v3-hero__supra   {
  font-family: var(--mg-font-mono); font-size: 12px;
  color: var(--mg-text-dim); margin-bottom: 36px; letter-spacing: 1.5px; text-transform: uppercase;
}
.v3-hero__title {
  font-family: var(--mg-font-mono); font-size: clamp(56px, 8vw, 128px);
  line-height: 0.95; letter-spacing: -5px; font-weight: 500; margin: 0;
  color: var(--mg-ink-0); text-wrap: balance;
}
.v3-hero--center .v3-hero__title { font-size: clamp(64px, 9vw, 144px); letter-spacing: -6px; }
.v3-hero__amber  { color: var(--lamp-amber); }
.v3-hero__indigo { color: var(--spark-indigo); }
.v3-hero__sub {
  font-size: 18px; line-height: 1.55; color: #4e4a5a; max-width: 540px;
  margin-top: 36px;
}
.v3-hero--center .v3-hero__sub { margin: 36px auto 0; max-width: 580px; }
.v3-hero__chips {
  display: flex; gap: 14px; justify-content: center; margin-top: 48px;
  flex-wrap: wrap;
}
.v3-hero__chip {
  display: inline-flex; align-items: baseline; gap: 12px;
  padding: 14px 20px 14px 16px;
  background: #fff; border: 1px solid var(--mg-paper-3); border-radius: 999px;
  transition: all .25s var(--mg-ease);
}
.v3-hero__chip:hover {
  transform: translateY(-2px); border-color: currentColor;
  box-shadow: 0 8px 24px -12px rgba(13,12,16,0.2);
}
.v3-hero__chip--ind   { color: var(--spark-indigo); }
.v3-hero__chip--amber { color: var(--lamp-amber); }
.v3-hero__chip-num    { font-family: var(--mg-font-mono); font-size: 11px; letter-spacing: 1px; color: var(--mg-text-dim); }
.v3-hero__chip-name   { font-family: var(--mg-font-mono); font-size: 17px; font-weight: 500; letter-spacing: -0.5px; }
.v3-hero__chip-tag    { font-size: 13px; color: #5a5666; }
.v3-hero__chip-arrow  { font-family: var(--mg-font-mono); font-size: 15px; transition: transform .2s var(--mg-ease); }
.v3-hero__chip:hover .v3-hero__chip-arrow { transform: translateX(3px); }

/* What we sell */
.v3-what     { padding: 56px 0 16px; border-top: 1px solid var(--mg-paper-3); }
.v3-what__lbl{ font-family: var(--mg-font-mono); font-size: 11px; letter-spacing: 1.8px; text-transform: uppercase; color: var(--mg-text-dim); margin-bottom: 28px; }
.v3-what__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.v3-what__card { background: #fff; border: 1px solid var(--mg-paper-3); border-radius: 6px; padding: 28px; }
.v3-what__head { font-family: var(--mg-font-mono); font-size: 18px; font-weight: 500; letter-spacing: -0.5px; color: var(--mg-ink-0); margin-bottom: 12px; }
.v3-what__card p { color: #4e4a5a; font-size: 14px; line-height: 1.6; margin: 0 0 18px; }
.v3-what__card a {
  font-family: var(--mg-font-mono); font-size: 13px;
  color: var(--mg-ink-0); border-bottom: 1px solid var(--mg-paper-3);
  padding-bottom: 2px; transition: all .2s var(--mg-ease);
}
.v3-what__grid > .v3-what__card:nth-child(1) a       { color: var(--spark-indigo); }
.v3-what__grid > .v3-what__card:nth-child(1) a:hover { border-color: var(--spark-indigo); }
.v3-what__grid > .v3-what__card:nth-child(2) a       { color: var(--lamp-amber); }
.v3-what__grid > .v3-what__card:nth-child(2) a:hover { border-color: var(--lamp-amber); }

/* Divider */
.v3-divider {
  display: flex; align-items: center; gap: 16px; margin: 48px 0;
  font-family: var(--mg-font-mono); font-size: 11px; letter-spacing: 1.8px;
  text-transform: uppercase; color: var(--mg-text-dim);
}
.v3-divider::before, .v3-divider::after { content: ''; flex: 1; height: 1px; background: var(--mg-paper-3); }

/* Cards */
.v3-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; padding-bottom: 80px; }
.v3-card  { display: flex; flex-direction: column; gap: 14px; }
.v3-card__head { display: flex; align-items: baseline; gap: 16px; padding: 0 4px; }
.v3-card__num  { font-family: var(--mg-font-mono); font-size: 36px; font-weight: 500; letter-spacing: -2px; color: var(--mg-ink-0); }
.v3-card--lamp  .v3-card__num { color: var(--lamp-amber); }
.v3-card--spark .v3-card__num { color: var(--spark-indigo); }
.v3-card__cat   { font-family: var(--mg-font-mono); font-size: 11px; letter-spacing: 1.8px; text-transform: uppercase; color: var(--mg-text-dim); }

/* Writing */
.v3-writing      { padding: 80px 0; border-top: 1px solid var(--mg-paper-3); }
.v3-writing__head{ display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 32px; }
.v3-writing__h   { font-family: var(--mg-font-mono); font-size: clamp(28px, 3.5vw, 44px); letter-spacing: -1.5px; font-weight: 500; margin: 8px 0 0; line-height: 1.1; color: var(--mg-ink-0); }
.v3-writing__all { font-family: var(--mg-font-mono); font-size: 13px; color: var(--mg-text-dim); transition: color .2s var(--mg-ease); }
.v3-writing__all:hover { color: var(--spark-indigo); }
.v3-notes        { display: flex; flex-direction: column; border-top: 1px solid var(--mg-paper-3); }
.v3-note {
  display: grid; grid-template-columns: 110px 1fr 80px 30px;
  gap: 32px; padding: 22px 4px; border-bottom: 1px solid var(--mg-paper-3);
  align-items: center; transition: padding-left .3s var(--mg-ease), background .3s var(--mg-ease);
}
.v3-note:hover   { padding-left: 16px; background: rgba(91,91,214,0.03); }
.v3-note__date   { font-family: var(--mg-font-mono); font-size: 12px; color: var(--mg-text-dim); letter-spacing: 0.5px; }
.v3-note__title  { font-family: var(--mg-font-mono); font-size: 18px; color: var(--mg-ink-0); font-weight: 500; letter-spacing: -0.5px; margin-bottom: 4px; transition: color .2s var(--mg-ease); }
.v3-note:hover .v3-note__title { color: var(--spark-indigo); }
.v3-note__sub    { font-size: 14px; color: #5a5666; line-height: 1.5; }
.v3-note__read   { font-family: var(--mg-font-mono); font-size: 11px; color: var(--mg-text-dim); text-align: right; letter-spacing: 0.5px; }
.v3-note__arrow  { text-align: right; color: var(--mg-text-dim); font-family: var(--mg-font-mono); transition: color .2s var(--mg-ease), transform .2s var(--mg-ease); }
.v3-note:hover .v3-note__arrow { color: var(--spark-indigo); transform: translateX(4px); }

/* About */
.v3-about        { padding: 80px 0; border-top: 1px solid var(--mg-paper-3); }
.v3-about__lbl   { font-family: var(--mg-font-mono); font-size: 11px; letter-spacing: 1.8px; text-transform: uppercase; color: var(--mg-text-dim); margin-bottom: 28px; }
.v3-about__grid  { display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: start; }
.v3-about__h     { font-family: var(--mg-font-mono); font-size: clamp(28px, 3.5vw, 44px); letter-spacing: -1.5px; font-weight: 500; margin: 0; line-height: 1.15; color: var(--mg-ink-0); text-wrap: balance; }
.v3-about__copy p{ color: #4e4a5a; font-size: 15px; line-height: 1.6; margin: 0 0 14px; }
.v3-about__copy p:last-child { margin-bottom: 0; }

/* CTA */
.v3-cta { display: grid; grid-template-columns: 1fr auto; gap: 48px; align-items: center; padding: 80px 0; }
.v3-cta__lbl { font-family: var(--mg-font-mono); font-size: 11px; letter-spacing: 1.8px; text-transform: uppercase; color: var(--mg-text-dim); margin-bottom: 18px; }
.v3-cta__h   { font-family: var(--mg-font-mono); font-size: clamp(28px, 3.5vw, 48px); letter-spacing: -1.5px; font-weight: 500; margin: 0 0 16px; line-height: 1.1; color: var(--mg-ink-0); max-width: 16ch; }
.v3-cta p    { color: #5a5666; font-size: 15px; line-height: 1.5; max-width: 50ch; margin: 0; }
.v3-cta__btn {
  font-family: var(--mg-font-mono); font-size: 15px; padding: 18px 28px;
  border: 1px solid var(--mg-ink-0); border-radius: 999px; color: var(--mg-ink-0);
  transition: all .3s var(--mg-ease); white-space: nowrap;
}
.v3-cta__btn:hover { background: var(--mg-ink-0); color: #f7f5f0; }

/* Footer */
.v3-foot {
  display: flex; justify-content: center; padding: 28px 0;
  border-top: 1px solid var(--mg-paper-3);
  font-family: var(--mg-font-mono); font-size: 11px; color: var(--mg-text-dim);
  letter-spacing: 1px; text-transform: uppercase;
}

/* Sub-page hero */
.v3-sub-hero       { padding: 80px 0 48px; max-width: 920px; }
.v3-sub-hero__title{ font-family: var(--mg-font-mono); font-size: clamp(44px, 6vw, 88px); line-height: 0.98; letter-spacing: -3px; font-weight: 500; margin: 0; color: var(--mg-ink-0); text-wrap: balance; }
.v3-sub-hero__sub  { font-size: 17px; line-height: 1.55; color: #4e4a5a; max-width: 620px; margin-top: 28px; }
.v3-sub-tags       { display: flex; gap: 10px; margin-top: 32px; flex-wrap: wrap; }
.v3-sub-tag {
  font-family: var(--mg-font-mono); font-size: 12px;
  padding: 6px 12px; border: 1px solid var(--mg-paper-3); border-radius: 999px;
  background: rgba(255,255,255,0.5); color: #5a5666;
  cursor: pointer; transition: all .2s var(--mg-ease);
}
.v3-sub-tag:hover  { border-color: var(--mg-ink-0); }
.v3-sub-tag--active{ background: var(--mg-ink-0); color: #f7f5f0 !important; border-color: var(--mg-ink-0); }

/* Writing list — adds tag column */
.v3-notes--full { border-top: 1px solid var(--mg-paper-3); margin-top: 8px; }
.v3-note--full  { grid-template-columns: 110px 1fr 110px 80px 30px; }
.v3-note__tag   { font-family: var(--mg-font-mono); font-size: 12px; letter-spacing: 0.5px; text-transform: lowercase; }

/* Subscribe form */
.v3-sub-form         { display: flex; gap: 8px; align-items: stretch; }
.v3-sub-form input   {
  font: inherit; padding: 14px 18px; min-width: 280px;
  border: 1px solid var(--mg-paper-3); border-radius: 999px;
  background: #fff; color: var(--mg-ink-0); outline: none;
  transition: border-color .2s var(--mg-ease);
}
.v3-sub-form input:focus { border-color: var(--mg-ink-0); }
.v3-sub-form button  {
  font-family: var(--mg-font-mono); font-size: 15px;
  padding: 14px 24px; border: 1px solid var(--mg-ink-0); border-radius: 999px;
  background: var(--mg-ink-0); color: #f7f5f0; cursor: pointer;
  transition: all .2s var(--mg-ease);
}
.v3-sub-form button:hover { background: var(--spark-indigo); border-color: var(--spark-indigo); }

/* About — story */
.v3-about__story{ padding: 64px 0; border-top: 1px solid var(--mg-paper-3); }
.v3-story__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.v3-story__col h3{ font-family: var(--mg-font-mono); font-size: 24px; font-weight: 500; letter-spacing: -1px; margin: 0 0 16px; color: var(--mg-ink-0); }
.v3-story__col p { font-size: 15px; line-height: 1.65; color: #4e4a5a; margin: 0 0 14px; }

/* Team grid */
.v3-team        { padding: 64px 0; border-top: 1px solid var(--mg-paper-3); }
.v3-team__head  { margin-bottom: 36px; }
.v3-team__h     { font-family: var(--mg-font-mono); font-size: clamp(28px, 3.5vw, 44px); letter-spacing: -1.5px; font-weight: 500; margin: 8px 0 0; color: var(--mg-ink-0); }
.v3-team__grid  { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.v3-team__card  { background: #fff; border: 1px solid var(--mg-paper-3); border-radius: 6px; padding: 24px; }
.v3-team__avatar{ width: 56px; height: 56px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-family: var(--mg-font-mono); font-size: 18px; font-weight: 500; color: #fff; margin-bottom: 18px; letter-spacing: -0.5px; }
.v3-team__avatar--open { background: transparent; border: 1px dashed var(--mg-paper-3); color: var(--mg-text-dim); font-size: 26px; }
.v3-team__name  { font-family: var(--mg-font-mono); font-size: 17px; font-weight: 500; letter-spacing: -0.5px; color: var(--mg-ink-0); margin-bottom: 4px; }
.v3-team__role  { font-family: var(--mg-font-mono); font-size: 13px; margin-bottom: 8px; }
.v3-team__city  { font-size: 12px; color: var(--mg-text-dim); font-family: var(--mg-font-mono); letter-spacing: 0.3px; }
.v3-team__card--open { border-style: dashed; }

/* Values */
.v3-values       { padding: 64px 0; border-top: 1px solid var(--mg-paper-3); }
.v3-values__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-top: 28px; }
.v3-value        { background: #fff; border: 1px solid var(--mg-paper-3); border-radius: 6px; padding: 28px; position: relative; }
.v3-value__num   { position: absolute; top: 24px; right: 24px; font-family: var(--mg-font-mono); font-size: 14px; color: var(--mg-text-dim); letter-spacing: 0.5px; }
.v3-value h3     { font-family: var(--mg-font-mono); font-size: 22px; font-weight: 500; letter-spacing: -0.8px; margin: 0 0 12px; color: var(--mg-ink-0); padding-right: 36px; }
.v3-value p      { font-size: 14px; line-height: 1.6; color: #4e4a5a; margin: 0; }

/* Mobile */
@media (max-width: 800px) {
  .v3-topbar { grid-template-columns: 1fr auto; gap: 16px; padding: 18px 24px; }
  .v3-nav { display: none; }
  .v3-main { padding: 0 24px; }
  .v3-hero, .v3-hero--center { padding: 56px 0 40px; }
  .v3-hero__title { letter-spacing: -3px; }
  .v3-hero--center .v3-hero__title { letter-spacing: -3px; }
  .v3-what__grid, .v3-cards, .v3-about__grid, .v3-story__grid, .v3-values__grid, .v3-team__grid {
    grid-template-columns: 1fr;
  }
  .v3-cta { grid-template-columns: 1fr; gap: 24px; }
  .v3-note, .v3-note--full { grid-template-columns: 90px 1fr 30px; gap: 16px; }
  .v3-note__read, .v3-note__tag { display: none; }
}