/* ============================================================
   MENTTALK — Private Network Landing
   Editorial · Luxury · Private-Members-Club
   ============================================================ */

:root {
  --red: #FB2F60;
  --red-deep: #D6164A;
  --fiery: #C0332B;
  --maroon: #570016;
  --void: #0A0A0A;
  --charcoal: #121212;
  --ink: #FCFCFC;
  --silver: #A3A3A3;
  --line: rgba(255, 255, 255, 0.1);
  --font-head: 'Young Serif', Georgia, serif;
  --font-serif: 'Young Serif', Georgia, serif;
  --font-body: 'Inter', 'Helvetica Neue', sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 76px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--void);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--red); color: #fff; }

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ---------- Grain overlay ---------- */
.grain {
  position: fixed;
  inset: -50%;
  width: 200%;
  height: 200%;
  pointer-events: none;
  z-index: 2000;
  opacity: 0.032;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Custom cursor ---------- */
.cursor {
  position: fixed;
  top: 0; left: 0;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--red);
  pointer-events: none;
  z-index: 3000;
  transform: translate(-50%, -50%);
  transition: width 0.25s var(--ease), height 0.25s var(--ease), opacity 0.3s;
  opacity: 0;
}
.cursor.is-active { width: 44px; height: 44px; opacity: 0.55; mix-blend-mode: difference; }
@media (pointer: coarse) { .cursor { display: none; } }

/* ---------- Layout ---------- */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}
@media (min-width: 768px) {
  .container { padding-left: 3rem; padding-right: 3rem; }
}

.section { padding: clamp(6rem, 12vw, 11rem) 0; position: relative; }
.section-lined { border-top: 1px solid var(--line); }

/* ---------- Typography ---------- */
.overline {
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--silver);
  font-weight: 400;
}
.overline-red { color: var(--red); }

.section-head {
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}
.section-index {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--red);
  letter-spacing: 0.1em;
}
.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--silver);
}

.section-title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(2.4rem, 5.5vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.025em;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}
.section-title em,
.hero-title em,
.final-title em,
.modal-title em,
.why-word em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: 0;
}
.section-title-offset { margin-left: clamp(0px, 8vw, 140px); }

.body-lg {
  font-size: clamp(1.02rem, 1.4vw, 1.18rem);
  line-height: 1.85;
  color: var(--silver);
  max-width: 34em;
  margin-bottom: 1.6rem;
}

.signature {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.35rem;
  color: var(--ink);
  margin-top: 2.4rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 1.15rem 2.4rem;
  border: 1px solid transparent;
  border-radius: 2px;
  transition: background-color 0.3s var(--ease), color 0.3s var(--ease),
              border-color 0.3s var(--ease), transform 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}
.btn:active { transform: scale(0.97); }

.btn-primary { background: var(--red); color: #fff; }
.btn-primary:hover { background: var(--red-deep); transform: translateY(-2px); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: rgba(255, 255, 255, 0.35);
}
.btn-ghost:hover { background: var(--ink); color: var(--void); border-color: var(--ink); }

.btn-sm { padding: 0.75rem 1.5rem; font-size: 0.72rem; }
.btn-xl { padding: 1.5rem 3.4rem; font-size: 0.95rem; }
.btn-block { width: 100%; margin-top: 1rem; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: background-color 0.4s var(--ease), border-color 0.4s var(--ease),
              backdrop-filter 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(10, 10, 10, 0.82);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border-bottom-color: var(--line);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  height: var(--header-h);
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
@media (min-width: 768px) { .header-inner { padding: 0 3rem; } }

.brand { display: flex; align-items: center; gap: 0.65rem; }
.brand-mark { width: 28px; height: 28px; object-fit: contain; }
.brand-wordmark { height: 17px; width: auto; margin-top: 2px; }

.main-nav { display: none; gap: 2.6rem; }
@media (min-width: 900px) { .main-nav { display: flex; } }

.nav-link {
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--silver);
  position: relative;
  padding: 0.3rem 0;
  transition: color 0.3s var(--ease);
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s var(--ease);
}
.nav-link:hover { color: var(--ink); }
.nav-link:hover::after { transform: scaleX(1); transform-origin: left; }

.header-actions { display: flex; align-items: center; gap: 1rem; }
.header-actions .btn { display: none; }
@media (min-width: 900px) { .header-actions .btn { display: inline-flex; } }

.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  padding: 8px;
}
@media (min-width: 900px) { .menu-toggle { display: none; } }
.menu-toggle span {
  display: block;
  width: 26px; height: 1.5px;
  background: var(--ink);
  transition: transform 0.35s var(--ease), opacity 0.35s;
}
.menu-toggle.open span:first-child { transform: translateY(3.75px) rotate(45deg); }
.menu-toggle.open span:last-child { transform: translateY(-3.75px) rotate(-45deg); }

/* ---------- Mobile menu ---------- */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.97);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  z-index: 900;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 2.5rem;
  gap: 3rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.45s var(--ease), visibility 0.45s;
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-nav { display: flex; flex-direction: column; gap: 1.4rem; }
.mobile-link {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 2.2rem;
  letter-spacing: -0.02em;
  color: var(--ink);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease), color 0.3s;
}
.mobile-menu.open .mobile-link { opacity: 1; transform: translateY(0); }
.mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.08s; }
.mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.14s; }
.mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.26s; }
.mobile-link:hover { color: var(--red); }
.mobile-menu-note { font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--silver); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  padding-bottom: clamp(2rem, 5vh, 3.5rem);
}
.hero-bg {
  position: absolute;
  inset: -12% 0;
  background: url('assets/texture-fabric.jpg') center / cover no-repeat;
  will-change: transform;
}
.hero-veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10,10,10,0.82) 0%, rgba(10,10,10,0.68) 45%, rgba(10,10,10,0.94) 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  padding-top: calc(var(--header-h) + clamp(1rem, 3vh, 2.5rem));
}

.hero-title {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.9rem, 8.2vw, 7.4rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin: 2.2rem 0 2.4rem;
}
.hero-title em { font-weight: 400; color: var(--red); }

.hero-sub {
  max-width: 33em;
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  line-height: 1.8;
  color: var(--silver);
  margin-bottom: 3rem;
}

.hero-ctas { display: flex; flex-wrap: wrap; gap: 1rem; }

.hero-foot {
  position: relative;
  width: 100%;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 1.4rem;
  margin-top: clamp(3rem, 7vh, 5rem);
}
.hero-foot-item {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--silver);
}
.hero-foot-sep { width: 42px; height: 1px; background: var(--line); }
.scroll-hint {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--silver);
}
.scroll-line {
  width: 1px; height: 42px;
  background: var(--red);
  display: block;
  animation: scrollPulse 2.4s var(--ease) infinite;
  transform-origin: top;
}
@keyframes scrollPulse {
  0%, 100% { transform: scaleY(0.35); opacity: 0.4; }
  50% { transform: scaleY(1); opacity: 1; }
}
@media (max-width: 640px) { .hero-foot-sep, .scroll-hint { display: none; } }

@media (max-height: 780px) and (min-width: 900px) {
  .hero-title {
    font-size: clamp(2.7rem, 7vw, 5.8rem);
    margin: 1.6rem 0 1.6rem;
  }
  .hero-sub {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 2.2rem;
  }
  .hero-foot {
    margin-top: 2.6rem;
  }
}

@media (max-width: 640px) {
  .hero {
    min-height: auto;
    padding-bottom: 3rem;
  }
  .hero-ctas {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-ctas .btn {
    width: 100%;
  }
  .hero-foot {
    flex-wrap: wrap;
    gap: 0.7rem 1rem;
    margin-top: 2.5rem;
  }
  .hero-foot-item {
    font-size: 0.62rem;
    letter-spacing: 0.16em;
  }
}

/* ---------- Ticker ---------- */
.ticker {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  padding: 1.4rem 0;
}
.ticker-track {
  display: flex;
  width: max-content;
  animation: tickerMove 42s linear infinite;
}
.ticker:hover .ticker-track { animation-play-state: paused; }
.ticker-set {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 0.92rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--silver);
  white-space: nowrap;
  padding-right: 0.5rem;
}
.ticker-set i { color: var(--red); font-style: normal; padding: 0 0.9rem; }
@keyframes tickerMove { to { transform: translateX(-50%); } }

/* ---------- Philosophy ---------- */
.philosophy-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
}
@media (min-width: 900px) {
  .philosophy-grid { grid-template-columns: 7fr 4fr; gap: 6rem; align-items: start; }
}
.philosophy-figure { margin-top: 1rem; }
@media (min-width: 900px) { .philosophy-figure { margin-top: 5rem; } }
.philosophy-img {
  aspect-ratio: 3 / 4;
  object-fit: cover;
  filter: grayscale(0.4) contrast(1.05);
  border: 1px solid var(--line);
}
.figure-caption {
  margin-top: 1rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--silver);
}

/* ---------- Process steps ---------- */
.steps { border-top: 1px solid var(--line); }
.step {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 2rem;
  padding: clamp(2.2rem, 4vw, 3.4rem) 0;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.4s var(--ease), padding-left 0.4s var(--ease);
}
.step:hover { background: rgba(255, 255, 255, 0.02); padding-left: 1.2rem; }
.step-number {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  color: var(--red);
  letter-spacing: -0.02em;
  min-width: 3.2rem;
}
.step-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.4vw, 1.9rem);
  letter-spacing: -0.015em;
  margin-bottom: 0.6rem;
}
.step-text { color: var(--silver); max-width: 40em; font-size: 0.98rem; }
.step-arrow {
  font-size: 1.6rem;
  color: var(--silver);
  transition: transform 0.4s var(--ease), color 0.4s var(--ease);
}
.step:hover .step-arrow { transform: translateX(8px); color: var(--red); }
@media (max-width: 640px) { .step-arrow { display: none; } .step { grid-template-columns: auto 1fr; } }

/* ---------- Why ---------- */
.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
}
@media (min-width: 900px) {
  .why-grid { grid-template-columns: repeat(12, 1fr); gap: 3rem; }
  .why-item-lead { grid-column: 1 / 7; }
  .why-item:nth-child(2) { grid-column: 8 / 13; margin-top: 6rem; }
  .why-item:nth-child(3) { grid-column: 3 / 9; margin-top: -2rem; }
}
.why-item { border-top: 1px solid var(--line); padding-top: 2rem; }
.why-word {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(2.2rem, 4.6vw, 3.6rem);
  letter-spacing: -0.02em;
  margin-bottom: 1.4rem;
}
.why-word em { color: var(--red); }
.why-text { color: var(--silver); max-width: 30em; }

/* ---------- Use cases ---------- */
.usecases-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3.5rem;
}
@media (min-width: 900px) {
  .usecases-grid { grid-template-columns: 5fr 6fr; gap: 6rem; align-items: start; }
}
.moment-list { list-style: none; border-top: 1px solid var(--line); }
.moment {
  display: flex;
  align-items: baseline;
  gap: 1.6rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-head);
  font-weight: 500;
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  letter-spacing: -0.01em;
  transition: padding-left 0.4s var(--ease), color 0.3s var(--ease);
}
.moment:hover { padding-left: 1rem; color: var(--red); }
.moment-index {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--silver);
}
.usecases-note {
  margin-top: 4rem;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  color: var(--ink);
  max-width: 34em;
}

/* ---------- Network ---------- */
.section-dark-block {
  background: var(--charcoal);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.network-bg {
  position: absolute;
  inset: 0;
  background: url('assets/texture-fabric.jpg') center / cover no-repeat;
  opacity: 0.1;
  filter: grayscale(1);
}
.network-inner { position: relative; z-index: 2; }
.network-lead { max-width: 38em; }
.network-rotator {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: clamp(1.3rem, 2.6vw, 2rem);
  letter-spacing: -0.01em;
  margin: 3.4rem 0;
  color: var(--ink);
}
.rotator-word {
  color: var(--red);
  font-family: var(--font-serif);
  font-style: italic;
  display: inline-block;
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}
.rotator-word.fading { opacity: 0; transform: translateY(8px); }
.network-closing {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  line-height: 1.4;
  color: var(--ink);
  border-left: 2px solid var(--red);
  padding-left: 2rem;
}

/* ---------- Experts ---------- */
.experts-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
}
@media (min-width: 900px) {
  .experts-grid { grid-template-columns: 4fr 7fr; gap: 6rem; align-items: start; }
  .experts-figure { margin-top: 4rem; }
}
.experts-img {
  aspect-ratio: 3 / 4;
  object-fit: cover;
  filter: grayscale(0.5) contrast(1.05);
  border: 1px solid var(--line);
}
.experts-points {
  list-style: none;
  margin: 2.4rem 0 3rem;
  border-top: 1px solid var(--line);
}
.experts-points li {
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.experts-points li::before {
  content: '';
  width: 7px; height: 7px;
  background: var(--red);
  flex-shrink: 0;
}

/* ---------- Final CTA ---------- */
.final-cta { text-align: left; }
.final-title {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.6rem, 7vw, 6.2rem);
  line-height: 1.0;
  letter-spacing: -0.03em;
  margin: 2rem 0 2.2rem;
}
.final-title em { color: var(--red); }
.final-sub { margin-bottom: 3.4rem; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 3.4rem 0;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 2.2rem;
}
@media (min-width: 900px) {
  .footer-inner { flex-direction: row; align-items: center; justify-content: space-between; }
}
.footer-brand { display: flex; align-items: center; gap: 0.65rem; }
.footer-mark { width: 24px; height: 24px; object-fit: contain; }
.footer-wordmark { height: 15px; width: auto; margin-top: 2px; }
.footer-nav { display: flex; gap: 2rem; flex-wrap: wrap; }
.footer-link {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--silver);
  transition: color 0.3s var(--ease);
}
.footer-link:hover { color: var(--ink); }
.footer-meta {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--silver);
}
@media (min-width: 900px) { .footer-meta { text-align: right; } }

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2500;
  background: rgba(5, 5, 5, 0.78);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--ease), visibility 0.4s;
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal-panel {
  background: var(--charcoal);
  border: 1px solid var(--line);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  max-height: 90svh;
  overflow-y: auto;
  padding: clamp(2.2rem, 5vw, 3.4rem);
  position: relative;
  transform: translateY(24px);
  transition: transform 0.45s var(--ease);
}
.modal-overlay.open .modal-panel { transform: translateY(0); }

.modal-close {
  position: absolute;
  top: 1.1rem; right: 1.2rem;
  background: none;
  border: none;
  color: var(--silver);
  font-size: 1.7rem;
  line-height: 1;
  padding: 0.4rem;
  transition: color 0.3s, transform 0.3s var(--ease);
}
.modal-close:hover { color: var(--ink); transform: rotate(90deg); }

.modal-mark { width: 34px; height: 34px; object-fit: contain; margin-bottom: 1.4rem; }
.modal-title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.9rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.7rem;
}
.modal-title em { color: var(--red); }
.modal-sub { color: var(--silver); font-size: 0.92rem; margin-bottom: 2.4rem; }

.field { margin-bottom: 1.7rem; flex: 1; }
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.field-row { display: flex; gap: 1.6rem; flex-wrap: wrap; }
.field-label {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver);
  margin-bottom: 0.5rem;
}
.optional { text-transform: none; letter-spacing: 0.04em; opacity: 0.6; }
.field-input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 300;
  padding: 0.65rem 0;
  transition: border-color 0.3s var(--ease);
}
.field-input::placeholder { color: rgba(163, 163, 163, 0.45); }
.field-input:focus { outline: none; border-bottom-color: var(--red); }
.field-textarea { resize: vertical; min-height: 70px; }
.field-input.invalid { border-bottom-color: var(--red); }

.form-error {
  color: var(--red);
  font-size: 0.85rem;
  margin-bottom: 0.8rem;
}
.form-note {
  margin-top: 1.2rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--silver);
  text-align: center;
}

.form-success { text-align: center; padding: 1.5rem 0; }
.success-mark { margin: 0 auto 1.6rem; }
.success-title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.7rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.8rem;
}
.success-text { color: var(--silver); max-width: 26em; margin: 0 auto 2.2rem; }

/* ---------- Reveal animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal.in-view { opacity: 1; transform: translateY(0); }
.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.22s; }
.reveal[data-delay="3"] { transition-delay: 0.34s; }
.reveal[data-delay="4"] { transition-delay: 0.46s; }
.reveal[data-delay="5"] { transition-delay: 0.58s; }
.reveal[data-delay="6"] { transition-delay: 0.7s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .ticker-track { animation: none; }
  .scroll-line { animation: none; }
  .cursor { display: none; }
}

/* ---------- Brand Manual v1.0 alignment ---------- */
.hero-title, .section-title, .final-title, .why-word, .modal-title, .success-title { font-weight: 400; }
.signature, .network-closing, .usecases-note, .moment-index, .rotator-word { font-style: normal; }
.section-title em, .hero-title em, .final-title em, .modal-title em, .why-word em {
  font-style: normal;
  color: var(--red);
}
.hero-bg {
  background: var(--charcoal) url('assets/brand-pattern.png') repeat;
  background-size: 380px;
}
.hero-veil {
  background: linear-gradient(180deg, rgba(10,10,10,0.78) 0%, rgba(10,10,10,0.6) 45%, rgba(10,10,10,0.94) 100%);
}
.section-dark-block { background: var(--charcoal); }
.network-bg {
  background: url('assets/brand-pattern.png') repeat;
  background-size: 380px;
  opacity: 0.55;
  filter: none;
}
.site-header.scrolled { background: rgba(10, 10, 10, 0.85); }
.mobile-menu { background: rgba(10, 10, 10, 0.97); }
.modal-overlay { background: rgba(5, 5, 5, 0.8); }
.grain { opacity: 0.028; }