:root {
  --cream: #fdfbf7;
  --paper: #f3eadf;
  --sage: #8da290;
  --forest: #1e2f23;
  --moss: #526b56;
  --gold: #7a5528;
  --gold-soft: #c5a47e;
  --gold-on-dark: #f0d29f;
  --ink: #263429;
  --muted: #4f5d52;
  --white: #fff;
  --line: rgba(30,47,35,.13);
  --shadow: 0 28px 90px rgba(30,47,35,.13);
  --max: 1160px;
  --head: "Cormorant Garamond", Georgia, serif;
  --body: "Manrope", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { max-width: 100%; }
body {
  margin: 0;
  color: var(--ink);
  font-family: var(--body);
  line-height: 1.72;
  background:
    radial-gradient(circle at 10% 8%, rgba(197,164,126,.22), transparent 24rem),
    radial-gradient(circle at 86% 18%, rgba(141,162,144,.22), transparent 28rem),
    linear-gradient(180deg, #fff, var(--cream) 46%, #fff),
    #fffdf8;
  overflow-x: hidden;
}

.paper-texture {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .35;
  background-image:
    linear-gradient(rgba(30,47,35,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,47,35,.028) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(to bottom, #000, transparent 86%);
}

a { color: inherit; }
figure { margin: 0; }
img { display: block; width: 100%; height: auto; object-fit: contain; }

.inv-hero,
.section {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.inv-nav {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.ghost-link,
.solid-link,
.btn-primary,
.btn-secondary {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0 18px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-decoration: none;
  transition: transform .25s ease, background .25s ease, color .25s ease, box-shadow .25s ease;
}

.ghost-link,
.btn-secondary {
  color: var(--forest);
  background: rgba(255,255,255,.72);
  border: 1px solid var(--line);
}

.ghost-link::before { content: "<"; margin-right: .65rem; }

.solid-link,
.btn-primary {
  color: #fff;
  background: var(--forest);
  border: 1px solid rgba(30,47,35,.18);
  box-shadow: 0 18px 52px rgba(30,47,35,.2);
}

.ghost-link:hover,
.solid-link:hover,
.btn-primary:hover,
.btn-secondary:hover { transform: translateY(-3px); }
.solid-link:hover,
.btn-primary:hover { background: var(--gold-soft); color: var(--forest); }

.hero-grid {
  min-height: calc(100vh - 78px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, .9fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  padding: clamp(2rem, 5vw, 4rem) 0;
}

.brand-logo {
  width: min(260px, 70vw);
  margin-bottom: 1.5rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--gold);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .18em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--head);
  line-height: .95;
  letter-spacing: 0;
}

h1 {
  max-width: 900px;
  color: var(--forest);
  font-size: clamp(3.2rem, 7vw, 6.8rem);
  font-weight: 500;
}

h2 {
  max-width: 960px;
  color: var(--forest);
  font-size: clamp(2.45rem, 5vw, 4.7rem);
  font-weight: 500;
}

.hero-lead,
.section-head p,
.split p,
.intro-grid p,
.final-card p {
  color: var(--muted);
  font-size: clamp(1rem, 1.18vw, 1.14rem);
}

.hero-lead {
  max-width: 720px;
  margin: 1.3rem 0 0;
  color: #415044;
  font-weight: 700;
}

.hero-actions,
.final-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  margin-top: 2rem;
}

.hero-visual {
  position: relative;
  min-height: 620px;
  isolation: isolate;
}

.browser-card,
.media-frame,
.feature-grid article,
.stack-grid article,
.process-card,
.final-card {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.88);
  box-shadow: var(--shadow);
}

.browser-card {
  border-radius: 28px;
  overflow: hidden;
}

.browser-card img,
.media-frame img {
  padding: .65rem;
  border-radius: inherit;
}

.browser-card.large {
  position: absolute;
  inset: 6% 10% auto 0;
  width: min(88%, 540px);
  transform: rotate(-1deg);
  animation: floatCard 7s ease-in-out infinite;
}

.browser-card.invitation-shot {
  width: min(88%, 560px);
  background:
    linear-gradient(145deg, rgba(255,255,255,.98), rgba(243,234,223,.78));
}

.browser-card.invitation-shot img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
}

.browser-card.floating {
  position: absolute;
  width: min(58%, 380px);
  right: 0;
  bottom: 8%;
  transform: rotate(2deg);
  animation: floatCardTwo 8s ease-in-out infinite;
}

.system-preview {
  position: absolute;
  width: min(50%, 330px);
  right: 3%;
  bottom: 12%;
  display: grid;
  gap: .75rem;
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 1rem;
  background:
    radial-gradient(circle at 20% 0, rgba(197,164,126,.24), transparent 32%),
    rgba(255,255,255,.96);
  box-shadow: var(--shadow);
  transform: rotate(1deg);
  animation: floatCardTwo 8s ease-in-out infinite;
  z-index: 2;
}

.system-preview article {
  min-height: 62px;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: .8rem;
  border: 1px solid rgba(30,47,35,.1);
  border-radius: 18px;
  padding: .75rem;
  background: rgba(253,251,247,.82);
}

.system-preview span {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #fff;
  background: var(--forest);
  font-size: 12px;
  font-weight: 900;
}

.system-preview strong {
  color: var(--forest);
  font-size: .92rem;
}

@keyframes floatCard {
  0%, 100% { transform: rotate(-1.5deg) translateY(0); }
  50% { transform: rotate(.2deg) translateY(-12px); }
}

@keyframes floatCardTwo {
  0%, 100% { transform: rotate(2deg) translateY(0); }
  50% { transform: rotate(.4deg) translateY(12px); }
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .9rem;
  padding-bottom: clamp(3rem, 6vw, 5rem);
}

.metric-strip article {
  min-height: 126px;
  display: grid;
  align-content: space-between;
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 1rem;
  background: rgba(255,255,255,.78);
}

.metric-strip strong {
  color: var(--forest);
  font-size: clamp(1.45rem, 2.5vw, 2.2rem);
  line-height: 1;
}

.metric-strip span,
.tool-row span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.section {
  padding: clamp(4rem, 8vw, 7rem) 0;
  border-top: 1px solid var(--line);
}

.section-head {
  max-width: 920px;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.section-head.centered {
  margin-inline: auto;
  text-align: center;
}

.intro-grid,
.brainstorm-grid,
.analysis-grid,
.benchmark-grid,
.testing-grid,
.feature-grid,
.stack-grid,
.showcase-grid {
  display: grid;
  gap: 1rem;
}

.intro-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.5rem, 4vw, 3rem);
}

.brainstorm-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.analysis-grid,
.benchmark-grid,
.testing-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.brainstorm-grid article {
  min-height: 230px;
  display: grid;
  align-content: start;
  gap: .8rem;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 1.15rem;
  background:
    linear-gradient(145deg, rgba(255,255,255,.9), rgba(253,251,247,.72));
  box-shadow: var(--shadow);
}

.analysis-grid article,
.benchmark-grid article,
.testing-grid article {
  min-height: 200px;
  display: grid;
  align-content: start;
  gap: .75rem;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 1.15rem;
  background:
    radial-gradient(circle at 18% 12%, rgba(197,164,126,.22), transparent 34%),
    linear-gradient(145deg, rgba(255,255,255,.94), rgba(253,251,247,.76));
  box-shadow: var(--shadow);
}

.brainstorm-grid span {
  color: var(--gold);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.benchmark-grid span {
  color: var(--gold);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.brainstorm-grid strong {
  color: var(--forest);
  font-size: 1.15rem;
  line-height: 1.25;
}

.analysis-grid strong,
.benchmark-grid strong,
.testing-grid strong {
  color: var(--forest);
  font-size: 1.12rem;
  line-height: 1.25;
}

.brainstorm-grid p {
  margin: 0;
  color: var(--muted);
  font-size: .95rem;
}

.analysis-grid span,
.testing-grid span,
.benchmark-grid p {
  margin: 0;
  color: var(--muted);
  font-size: .95rem;
}

.brand-board {
  border: 1px solid var(--line);
  border-radius: 30px;
  padding: clamp(1.35rem, 4vw, 2.5rem);
  background:
    radial-gradient(circle at 80% 10%, rgba(197,164,126,.22), transparent 34%),
    linear-gradient(145deg, rgba(255,255,255,.96), rgba(243,234,223,.76));
  box-shadow: var(--shadow);
  display: grid;
  gap: 1.25rem;
}

.brand-board img {
  width: min(320px, 100%);
  margin: 0 auto;
  filter: drop-shadow(0 22px 34px rgba(30,47,35,.16));
}

.swatches {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .8rem;
}

.swatches span {
  min-height: 92px;
  display: flex;
  align-items: flex-end;
  border: 1px solid rgba(30,47,35,.13);
  border-radius: 18px;
  padding: .85rem;
  color: #fff;
  background: var(--sw);
  box-shadow: 0 18px 34px rgba(30,47,35,.13);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.swatches span:nth-child(3) {
  color: var(--forest);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, .95fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

.split.reverse {
  grid-template-columns: minmax(360px, .95fr) minmax(0, 1fr);
}

.band,
.dark-section {
  width: 100%;
  max-width: none;
  padding-left: max(20px, calc((100% - var(--max)) / 2));
  padding-right: max(20px, calc((100% - var(--max)) / 2));
}

.band {
  background:
    radial-gradient(circle at 80% 10%, rgba(197,164,126,.24), transparent 24rem),
    var(--paper);
}

.dark-section {
  color: #fff;
  background:
    radial-gradient(circle at 16% 0, rgba(197,164,126,.18), transparent 25rem),
    linear-gradient(135deg, var(--forest), #314838 65%, #1a2a20);
}

.dark-section h2 { color: #fff; }
.dark-section p { color: rgba(255,255,255,.78); }
.dark-section .eyebrow { color: var(--gold-on-dark); }

.process-card {
  border-radius: 28px;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .95rem 1rem;
}

.process-card span {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #fff;
  background: var(--forest);
  font-weight: 900;
}

.process-card strong {
  align-self: center;
  color: var(--forest);
}

.dark-section .process-card {
  background: rgba(255,255,255,.94);
}

.dark-section .process-card span {
  color: var(--forest);
  background: var(--gold-on-dark);
}

.module-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.module-board article {
  min-height: 180px;
  display: grid;
  align-content: end;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 1rem;
  background:
    linear-gradient(145deg, rgba(255,255,255,.88), rgba(243,234,223,.74));
  box-shadow: var(--shadow);
}

.module-board strong {
  color: var(--forest);
  font-size: 1.1rem;
}

.module-board span {
  display: block;
  margin-top: .6rem;
  color: var(--muted);
  font-size: .94rem;
}

.check-list {
  display: grid;
  gap: .8rem;
  padding: 0;
  margin: 1.5rem 0 0;
  list-style: none;
}

.check-list li {
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,.78);
  padding: .9rem 1rem;
}

.check-list li::before {
  content: "✓";
  color: var(--gold);
  font-weight: 900;
  margin-right: .7rem;
}

.feature-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature-grid article,
.stack-grid article {
  min-height: 170px;
  border-radius: 22px;
  padding: 1rem;
}

.feature-grid strong,
.stack-grid strong {
  display: block;
  color: var(--forest);
  font-size: 1.05rem;
}

.feature-grid span,
.stack-grid span {
  display: block;
  margin-top: .7rem;
  color: var(--muted);
  font-size: .92rem;
}

.media-frame {
  border-radius: 28px;
  overflow: hidden;
}

.ai-frame {
  position: relative;
  background:
    radial-gradient(circle at 18% 0, rgba(197,164,126,.3), transparent 28%),
    rgba(255,255,255,.92);
}

.ai-frame img {
  max-height: 620px;
  object-fit: cover;
}

.web-proof {
  aspect-ratio: 16 / 10;
}

.web-proof img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.web-proof figcaption {
  position: absolute;
  left: 1.35rem;
  right: 1.35rem;
  bottom: 1.35rem;
  border: 1px solid rgba(255,255,255,.36);
  border-radius: 22px;
  padding: 1rem;
  color: var(--forest);
  background: rgba(255,255,255,.88);
  box-shadow: 0 18px 50px rgba(30,47,35,.14);
  backdrop-filter: blur(12px);
}

.web-proof figcaption span {
  display: block;
  color: var(--gold);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.web-proof figcaption strong {
  display: block;
  color: var(--forest);
  font-size: 1.35rem;
  line-height: 1.1;
}

.tool-row {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin-top: 1.5rem;
}

.tool-row span {
  color: var(--forest);
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 999px;
  background: rgba(255,255,255,.78);
  padding: .55rem .8rem;
}

.showcase-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.showcase-grid figure {
  border-radius: 28px;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.stack-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.final-section {
  padding-bottom: clamp(4rem, 8vw, 7rem);
}

.final-card {
  text-align: center;
  border-radius: 38px;
  padding: clamp(2rem, 5vw, 4rem);
  background:
    radial-gradient(circle at 16% 0, rgba(197,164,126,.22), transparent 30%),
    #fff;
}

.final-card h2 { margin-inline: auto; }
.final-card p { max-width: 860px; margin: 1.25rem auto 0; }
.final-actions { justify-content: center; }

.sample-invite {
  margin: clamp(1.6rem, 4vw, 2.5rem) auto 0;
  max-width: 560px;
  display: grid;
  justify-items: center;
  gap: 1rem;
}

.sample-invite p {
  margin: 0;
  color: #3d4b40;
  font-weight: 700;
}

.letter-button {
  position: relative;
  width: min(100%, 330px);
  min-height: 112px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(30,47,35,.18);
  border-radius: 18px;
  color: var(--forest);
  background:
    linear-gradient(145deg, rgba(255,255,255,.95), rgba(238,229,216,.92));
  box-shadow: 0 26px 64px rgba(30,47,35,.16);
  text-decoration: none;
  transform-style: preserve-3d;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}

.letter-button::before,
.letter-button::after,
.letter-flap {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.letter-button::before {
  background:
    linear-gradient(32deg, transparent 49.5%, rgba(30,47,35,.14) 50%, transparent 50.5%),
    linear-gradient(-32deg, transparent 49.5%, rgba(30,47,35,.14) 50%, transparent 50.5%);
}

.letter-button::after {
  inset: auto 0 0;
  height: 58%;
  background: linear-gradient(160deg, rgba(255,255,255,.38), rgba(197,164,126,.22));
  clip-path: polygon(0 100%, 50% 18%, 100% 100%);
}

.letter-flap {
  height: 62%;
  background: linear-gradient(180deg, rgba(255,255,255,.72), rgba(197,164,126,.2));
  clip-path: polygon(0 0, 100% 0, 50% 92%);
  transform-origin: top center;
  transition: transform .36s ease;
}

.letter-copy {
  position: relative;
  z-index: 1;
  padding-top: .8rem;
  font-size: .78rem;
  font-weight: 950;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.letter-button:hover {
  transform: translateY(-5px) rotate(-1deg);
  border-color: rgba(197,164,126,.7);
  box-shadow: 0 34px 78px rgba(30,47,35,.22);
}

.letter-button:hover .letter-flap {
  transform: rotateX(22deg);
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  filter: blur(8px);
  transition:
    opacity .78s cubic-bezier(.22,1,.36,1),
    transform .78s cubic-bezier(.22,1,.36,1),
    filter .78s cubic-bezier(.22,1,.36,1);
}

.reveal.in-view {
  opacity: 1;
  transform: none;
  filter: none;
}

@media (max-width: 980px) {
  .hero-grid,
  .split,
  .split.reverse,
  .intro-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual { min-height: auto; }
  .browser-card.large,
  .browser-card.floating,
  .system-preview {
    position: relative;
    inset: auto;
    width: 100%;
    transform: none;
    animation: none;
  }

  .browser-card.floating,
  .system-preview { margin-top: 1rem; }

  .metric-strip,
  .brainstorm-grid,
  .analysis-grid,
  .benchmark-grid,
  .testing-grid,
  .feature-grid,
  .swatches,
  .module-board,
  .stack-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .inv-hero,
  .section {
    width: min(var(--max), calc(100vw - 28px));
  }

  .inv-nav {
    flex-direction: column;
    align-items: stretch;
    padding: .9rem 0;
  }

  .ghost-link,
  .solid-link,
  .btn-primary,
  .btn-secondary {
    width: 100%;
    padding-inline: 14px;
    text-align: center;
  }

  .hero-actions,
  .final-actions {
    flex-direction: column;
  }

  h1 { font-size: clamp(2.8rem, 12vw, 4.15rem); }
  h2 { font-size: clamp(2.2rem, 11vw, 3.35rem); }

  .metric-strip,
  .brainstorm-grid,
  .analysis-grid,
  .benchmark-grid,
  .testing-grid,
  .feature-grid,
  .swatches,
  .module-board,
  .stack-grid,
  .showcase-grid {
    grid-template-columns: 1fr;
  }

  .band,
  .dark-section {
    width: 100%;
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; filter: none; }
}

html,
body {
  height: auto !important;
  min-height: 100% !important;
  overflow-x: hidden;
  overflow-y: auto !important;
  overscroll-behavior-y: auto;
  touch-action: pan-y;
  scrollbar-gutter: stable;
}