/* ============================================================
   ALTIRA AI — components.css
   All sections — redesigned in Newsreader / Inter / champagne
   ============================================================ */

/* ─────────── CONSTELLATION (massive, freeform background) ─────────── */
#constellation {
  position: fixed;
  /* Extend canvas beyond viewport so the network feels infinite */
  top: -25vh;
  left: -25vw;
  width: 150vw;
  height: 150vh;
  z-index: var(--z-bg);
  pointer-events: none;
  opacity: 0.85;
}

/* ─────────── NAV ─────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-nav);
  padding-inline: var(--container-px);
  padding-block: 18px;
  transition: background var(--dur-base) var(--ease-out), backdrop-filter var(--dur-base), border-color var(--dur-base);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(13, 12, 10, 0.78);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--color-border);
}
.nav__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}
.nav__brand { display: inline-flex; align-items: center; }
.nav__logo { height: 40px; width: auto; filter: brightness(0) invert(1); }
.nav__links { display: flex; gap: var(--space-7); }
.nav__link {
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  padding-block: var(--space-2);
  transition: color var(--dur-fast);
  position: relative;
}
.nav__link::after {
  content: '';
  position: absolute;
  left: 0; right: 100%; bottom: 0;
  height: 1px;
  background: var(--color-accent);
  transition: right var(--dur-base) var(--ease-out);
}
.nav__link:hover { color: var(--color-accent); }
.nav__link:hover::after { right: 0; }
@media (max-width: 720px) { .nav__links { display: none; } }

/* ─────────── BUTTONS ─────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 16px 30px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  transition: all var(--dur-base) var(--ease-out);
  white-space: nowrap;
}
.btn--sm { padding: 10px 20px; font-size: var(--fs-micro); letter-spacing: 0.06em; }
.btn--primary {
  background: var(--color-accent);
  color: #1a1408;
  border-color: var(--color-accent);
}
.btn--primary:hover { background: #d9c294; transform: translateY(-2px); box-shadow: var(--shadow-glow-strong); }
.btn--ghost {
  color: var(--color-text-primary);
  border-color: var(--color-border-strong);
  background: transparent;
}
.btn--ghost:hover { border-color: var(--color-accent); color: var(--color-accent); }
.btn__arrow {
  display: inline-block;
  transition: transform var(--dur-base) var(--ease-out);
}
.btn:hover .btn__arrow { transform: translateX(3px); }

/* ─────────── HERO ─────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 9rem;
  padding-bottom: 5rem;
  text-align: center;
}
.hero__content {
  position: relative;
  z-index: var(--z-content);
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
  width: 100%;
}
.hero__cap {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
  opacity: 0;
  animation: fadeIn 0.9s 0.2s var(--ease-out) forwards;
}
.hero__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: var(--fs-h1);
  line-height: 0.96;
  letter-spacing: var(--tracking-tight);
  max-width: 1100px;
  margin: 0 auto;
}
.hero__title-word {
  display: inline-block;
  opacity: 0;
  transform: translateY(28px);
  animation: heroRise 0.9s var(--ease-out) forwards;
  animation-delay: calc(0.4s + var(--i, 0) * 0.1s);
}
.hero__title-word--accent {
  font-style: italic;
  color: var(--color-accent);
}
@keyframes heroRise { to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { to { opacity: 1; } }

.hero__counter {
  margin-top: var(--space-7);
  display: inline-flex;
  align-items: baseline;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
  opacity: 0;
  animation: fadeIn 1s 1.6s var(--ease-out) forwards;
}
.hero__counter__stat { display: inline-flex; align-items: baseline; }
.hero__counter__num {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
  font-size: 38px;
  letter-spacing: -0.01em;
  color: var(--color-accent);
  line-height: 1;
  text-transform: none;
  font-variant-numeric: tabular-nums;
}
.hero__counter__plus {
  display: inline-block;
  max-width: 0;
  opacity: 0;
  overflow: hidden;
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--color-accent);
  font-size: 38px;
  font-weight: 500;
  line-height: 1;
  transition: max-width 0.6s var(--ease-out), opacity 0.6s var(--ease-out);
}
.hero__counter__plus.is-visible { max-width: 30px; opacity: 1; }
.hero__counter__label { font-weight: 400; }

.hero__ctas {
  margin-top: var(--space-7);
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeIn 1s 1.8s var(--ease-out) forwards;
}

/* ─────────── SECTION HEADER ─────────── */
.section__header { margin-bottom: var(--space-9); }
.section__header--center { text-align: center; }
.section__header .eyebrow { margin-bottom: var(--space-4); }
.section__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: var(--fs-h2);
  letter-spacing: var(--tracking-tight);
  line-height: var(--lh-snug);
  margin-bottom: var(--space-4);
}
.section__title em { font-style: italic; color: var(--color-accent); }
.section__subtitle {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--fs-body-lg);
  line-height: 1.45;
  color: var(--color-text-secondary);
  max-width: 720px;
}
.section__header--center .section__subtitle { margin-inline: auto; }

/* ─────────── PROCESS ─────────── */
.process__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-border);
  border-block: 1px solid var(--color-border);
}
@media (max-width: 900px) { .process__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .process__grid { grid-template-columns: 1fr; } }
.process__step {
  background: var(--color-bg-base);
  padding: 36px 28px;
  transition: background var(--dur-base) var(--ease-out);
}
.process__step:hover { background: var(--color-bg-mid); }
.process__num {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
  font-size: 56px;
  letter-spacing: -0.03em;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 22px;
  transition: transform var(--dur-base) var(--ease-out);
}
.process__step:hover .process__num { transform: translateY(-4px); }
.process__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: var(--fs-h4);
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.process__copy { font-size: 14.5px; color: var(--color-text-secondary); line-height: 1.6; }

/* ─────────── SERVICES ─────────── */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg-mid);
}
@media (max-width: 900px) { .services__grid { grid-template-columns: 1fr; } }
.service {
  padding: 40px 32px;
  border-right: 1px solid var(--color-border);
  transition: background var(--dur-base) var(--ease-out);
}
.service:last-child { border-right: 0; }
@media (max-width: 900px) {
  .service { border-right: 0; border-bottom: 1px solid var(--color-border); }
  .service:last-child { border-bottom: 0; }
}
.service:hover { background: rgba(201, 177, 127, 0.04); }
.service__icon {
  width: 44px; height: 44px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-accent);
  margin-bottom: 28px;
  transition: all var(--dur-base) var(--ease-out);
}
.service:hover .service__icon { background: var(--color-accent); color: var(--color-bg-base); }
.service__icon svg { width: 22px; height: 22px; }
.service__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.service__desc { font-size: 14.5px; color: var(--color-text-secondary); line-height: 1.6; }

/* ─────────── PULL QUOTE BAND (between services & cases) ─────────── */
.pull-band {
  padding-block: 100px;
  text-align: center;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: linear-gradient(180deg, transparent, rgba(201, 177, 127, 0.025), transparent);
  position: relative;
}
.pull-band p {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(28px, 3.4vw, 44px);
  line-height: 1.3;
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  z-index: var(--z-content);
}
.pull-band p em { font-style: italic; color: var(--color-accent); }
.pull-band__rule {
  width: 60px; height: 1px;
  background: var(--color-accent);
  margin: 28px auto 0;
}

/* ─────────── CASES ─────────── */
.cases__grid { display: grid; gap: 18px; }
.case {
  display: grid;
  grid-template-columns: 220px 1fr 200px;
  gap: 32px;
  padding: 24px;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-mid);
  transition: all var(--dur-base) var(--ease-out);
  cursor: pointer;
}
@media (max-width: 800px) {
  .case { grid-template-columns: 1fr; gap: 16px; }
}
.case:hover {
  border-color: var(--color-accent-dim);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift), var(--shadow-glow);
}
.case__cover {
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.case__cover img {
  width: 100%; height: auto;
  display: block;
  transition: transform 0.6s var(--ease-out);
}
.case:hover .case__cover img { transform: scale(1.04); }
.case__body { display: flex; flex-direction: column; gap: 10px; }
.case__meta {
  display: flex; gap: 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.case__meta span:first-child { color: var(--color-accent); font-weight: 500; }
.case__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: var(--fs-h4);
  letter-spacing: -0.015em;
  line-height: 1.2;
}
.case__title em { font-style: italic; color: var(--color-accent); }
.case__result {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 15px;
  color: var(--color-text-secondary);
  border-left: 1px solid var(--color-accent-dim);
  padding-left: 14px;
  line-height: 1.5;
  margin-top: 4px;
}
.case__cta {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--dur-base) var(--ease-out);
}
.case:hover .case__cta { gap: 12px; }

/* ─────────── ABOUT ─────────── */
.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
@media (max-width: 900px) { .about { grid-template-columns: 1fr; gap: 32px; } }
.about__main { display: flex; flex-direction: column; gap: 18px; }
.about__headline {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(28px, 3.4vw, 44px);
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin-bottom: var(--space-3);
}
.about__headline em { font-style: italic; color: var(--color-accent); }
.about p { font-size: 17px; color: var(--color-text-secondary); line-height: 1.65; }
.about p strong { color: var(--color-text-primary); font-weight: 500; }
.about__stats {
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
}
.about__stats__item {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* ─────────── FINAL CTA ─────────── */
.final {
  text-align: center;
  padding-block: clamp(100px, 14vw, 200px);
}
.final__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(48px, 7vw, 96px);
  letter-spacing: var(--tracking-tight);
  line-height: 1;
  margin-bottom: var(--space-5);
}
.final__title em { font-style: italic; color: var(--color-accent); }
.final__subtitle {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 20px;
  color: var(--color-text-secondary);
  max-width: 720px;
  margin: 0 auto var(--space-7);
  line-height: 1.45;
}

/* ─────────── FOOTER ─────────── */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 36px var(--container-px);
  position: relative;
  z-index: var(--z-content);
}
.footer__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-5);
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.footer__brand { display: flex; align-items: center; gap: 14px; }
.footer__logo { height: 28px; width: auto; filter: brightness(0) invert(1); opacity: 0.7; }
.footer__meta { color: var(--color-text-muted); }
.footer__links { display: flex; gap: var(--space-6); }
.footer__links a { transition: color var(--dur-fast); }
.footer__links a:hover { color: var(--color-accent); }

/* ─────────── CASE STUDY PAGES ─────────── */
.study {
  padding-top: 140px;
  padding-bottom: var(--section-py);
  position: relative;
  z-index: var(--z-content);
}
.study__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-9);
  transition: gap var(--dur-base) var(--ease-out), color var(--dur-fast);
}
.study__back:hover { color: var(--color-accent); gap: 14px; }
.study__back__arrow { display: inline-block; }
.study__header { margin-bottom: var(--space-8); }
.study__meta {
  display: flex;
  gap: var(--space-5);
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}
.study__meta span:first-child { color: var(--color-accent); font-weight: 500; }
.study__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(40px, 5.5vw, 80px);
  letter-spacing: var(--tracking-tight);
  line-height: 1.02;
  margin-bottom: var(--space-5);
}
.study__title em { font-style: italic; color: var(--color-accent); }
.study__subtitle {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 22px;
  line-height: 1.45;
  color: var(--color-text-secondary);
}
.study__cover {
  margin-block: var(--space-9);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.study__cover img { width: 100%; height: auto; display: block; }

.study__glance {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-block: 1px solid var(--color-border);
  margin-block: var(--space-9);
}
@media (max-width: 720px) { .study__glance { grid-template-columns: 1fr; } }
.study__glance > div {
  padding: 28px 24px;
  border-right: 1px solid var(--color-border);
}
.study__glance > div:last-child { border-right: 0; }
@media (max-width: 720px) {
  .study__glance > div { border-right: 0; border-bottom: 1px solid var(--color-border); }
  .study__glance > div:last-child { border-bottom: 0; }
}
.glance__num {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(36px, 4.4vw, 56px);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}
.glance__num em { font-style: italic; color: var(--color-accent); }
.glance__num .accent { color: var(--color-accent); font-style: italic; }
.glance__label {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.study__body { display: flex; flex-direction: column; gap: var(--space-9); }
.study__section {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 800px) { .study__section { grid-template-columns: 1fr; gap: 12px; } }
.study__section__label {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-accent);
  padding-top: 12px;
  border-top: 1px solid var(--color-accent);
  align-self: start;
}
.study__section__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(26px, 3vw, 36px);
  letter-spacing: -0.015em;
  line-height: 1.15;
  margin-bottom: var(--space-5);
}
.study__section__title em { font-style: italic; color: var(--color-accent); }
.study__section__prose { display: flex; flex-direction: column; gap: 16px; }
.study__section__prose p { font-size: 17px; color: var(--color-text-secondary); line-height: 1.65; }
.study__section__prose p strong { color: var(--color-text-primary); font-weight: 500; }

.study__quote {
  margin-block: var(--space-9);
  padding: 36px 44px;
  border-left: 2px solid var(--color-accent);
  background: linear-gradient(90deg, rgba(201, 177, 127, 0.05), transparent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.study__quote__text {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.4;
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}
.study__quote__author {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.study__quote__author strong { color: var(--color-accent); font-weight: 500; }

.study__cta {
  margin-top: var(--space-10);
  padding: 56px 44px;
  text-align: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-mid);
  position: relative;
  overflow: hidden;
}
.study__cta::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 600px 300px at 50% 0%, rgba(201, 177, 127, 0.08), transparent 70%);
  pointer-events: none;
}
.study__cta__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(26px, 3.2vw, 40px);
  letter-spacing: -0.015em;
  line-height: 1.15;
  margin-bottom: var(--space-3);
  position: relative;
}
.study__cta__title em { font-style: italic; color: var(--color-accent); }
.study__cta__sub {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 18px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  max-width: 720px;
  margin: 0 auto var(--space-6);
  position: relative;
}