/* =========================================================
   REMZY — design tokens
   Warm, cinematic dark palette. Gold (brass foil) as the
   single confident accent, dusk-blue held in reserve for
   depth. Parchment tone reserved for the book itself.
   ========================================================= */

:root {
  /* color */
  --ink: #0e0c10;
  --ink-2: #17141a;
  --ink-3: #221d27;
  --hairline: rgba(243, 238, 228, 0.09);
  --paper: #f6efe0;
  --paper-dim: #e7dcc4;
  --gold: #c9a25c;
  --gold-soft: #e4c98a;
  --gold-dim: #b08a4a;
  --dusk: #4b5a78;
  --dusk-soft: #6c7fa2;
  --text-hi: #f3eee4;
  --text-lo: #a79c89;
  --text-faint: #766c5c;

  /* type */
  --font-display: 'Fraunces', ui-serif, Georgia, serif;
  --font-body: 'Manrope', ui-sans-serif, system-ui, sans-serif;

  /* layout */
  --container: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius-sm: 8px;
  --radius-md: 14px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* =========================================================
   Reset
   ========================================================= */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--text-hi);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

h1, h2, h3, p, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }

a {
  color: inherit;
  text-decoration: none;
}

button { font: inherit; color: inherit; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem; top: -50px;
  background: var(--gold);
  color: var(--ink);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  z-index: 1000;
  transition: top 0.2s var(--ease-out);
  font-weight: 600;
}
.skip-link:focus { top: 1rem; }

:focus-visible {
  outline: 2px solid var(--gold-soft);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: min(100% - (var(--gutter) * 2), var(--container));
  margin-inline: auto;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text-hi);
}

h2 {
  font-size: clamp(1.9rem, 1.4rem + 2vw, 2.9rem);
  line-height: 1.15;
  max-width: 16ch;
}

h3 {
  font-size: 1.3rem;
  font-weight: 500;
}

p { color: var(--text-lo); }

/* =========================================================
   Buttons
   ========================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.35s var(--ease-out), background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease;
  white-space: nowrap;
}

.btn--gold {
  background: linear-gradient(180deg, var(--gold-soft), var(--gold));
  color: #201808;
  box-shadow: 0 10px 30px -12px rgba(201, 162, 92, 0.55);
}
.btn--gold:hover { transform: translateY(-2px); }

.btn--ghost {
  background: transparent;
  border-color: rgba(243, 238, 228, 0.22);
  color: var(--text-hi);
  padding: 0.65rem 1.3rem;
}
.btn--ghost:hover { border-color: var(--gold-soft); color: var(--gold-soft); }

.btn--text {
  background: none;
  color: var(--text-lo);
  padding: 0.85rem 0.2rem;
}
.btn--text:hover { color: var(--text-hi); }

/* =========================================================
   Header / Nav
   ========================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px) saturate(120%);
  background: linear-gradient(to bottom, rgba(14,12,16,0.82), rgba(14,12,16,0.55));
  border-bottom: 1px solid var(--hairline);
}

.header__row {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding-block: 1.1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-right: auto;
}

.brand__mark { width: 26px; height: 26px; }
.brand__page--l { fill: var(--gold-dim); }
.brand__page--r { fill: var(--gold); }

.brand__word {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  color: var(--text-hi);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
  font-size: 0.95rem;
  color: var(--text-lo);
}
.site-nav a { transition: color 0.2s ease; }
.site-nav a:hover { color: var(--text-hi); }

.nav-toggle {
  display: none;
  width: 34px; height: 34px;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  height: 1.5px;
  background: var(--text-hi);
  border-radius: 2px;
  transition: transform 0.3s var(--ease-out), opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0 var(--gutter) 1.25rem;
}
.mobile-nav a {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--hairline);
  color: var(--text-lo);
}
.mobile-nav .btn { margin-top: 0.75rem; align-self: flex-start; }

/* =========================================================
   Hero
   ========================================================= */

.hero {
  position: relative;
  padding-top: clamp(3rem, 8vw, 6rem);
  padding-bottom: 2rem;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 55% at 50% 0%, rgba(75, 90, 120, 0.22), transparent 60%),
    radial-gradient(ellipse 60% 40% at 85% 15%, rgba(201, 162, 92, 0.10), transparent 60%),
    var(--ink);
}

.hero__field {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.mote {
  position: absolute;
  width: 3px; height: 3px;
  border-radius: 50%;
  background: var(--gold-soft);
  opacity: 0;
  animation: moteDrift 12s linear infinite;
}
.mote--1 { left: 12%; top: 70%; animation-delay: 0s; }
.mote--2 { left: 22%; top: 40%; animation-delay: 2.2s; }
.mote--3 { left: 78%; top: 65%; animation-delay: 4.1s; }
.mote--4 { left: 88%; top: 35%; animation-delay: 1.3s; }
.mote--5 { left: 50%; top: 80%; animation-delay: 6s; }
.mote--6 { left: 65%; top: 50%; animation-delay: 3.4s; }

@keyframes moteDrift {
  0% { transform: translateY(0); opacity: 0; }
  15% { opacity: 0.55; }
  85% { opacity: 0.25; }
  100% { transform: translateY(-140px); opacity: 0; }
}

.hero__inner {
  position: relative;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero__headline {
  font-size: clamp(2.4rem, 1.7rem + 3.2vw, 4.6rem);
  line-height: 1.08;
  max-width: 15ch;
}

.hero__sub {
  margin-top: 1.4rem;
  font-size: clamp(1.05rem, 1rem + 0.3vw, 1.25rem);
  color: var(--text-lo);
  max-width: 46ch;
}

.hero__actions {
  margin-top: 2.2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

/* ---------- Book stage ---------- */

.book-stage {
  position: relative;
  width: min(760px, 94vw);
  height: clamp(260px, 34vw, 400px);
  margin: clamp(3rem, 7vw, 5rem) auto 1.5rem;
  perspective: 1700px;
  --mx: 0;
  --my: 0;
}

.book-glow {
  position: absolute;
  inset: -25% -8% -10%;
  background: radial-gradient(ellipse 55% 60% at 50% 45%, rgba(201, 162, 92, 0.28), transparent 68%),
              radial-gradient(ellipse 70% 50% at 50% 60%, rgba(75, 90, 120, 0.22), transparent 70%);
  filter: blur(34px);
  pointer-events: none;
}

.book-shadow {
  position: absolute;
  left: 50%;
  bottom: 6%;
  width: 58%;
  height: 26px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(0,0,0,0.55), transparent 72%);
  filter: blur(4px);
  animation: shadowPulse 7s ease-in-out infinite;
}

@keyframes shadowPulse {
  0%, 100% { opacity: 0.7; transform: translateX(-50%) scaleX(1); }
  50% { opacity: 0.45; transform: translateX(-50%) scaleX(0.9); }
}

.book {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 88%;
  height: 76%;
  transform-style: preserve-3d;
  animation: bookFloat 7s ease-in-out infinite;
}

@keyframes bookFloat {
  0%, 100% {
    transform: rotateX(calc(30deg + var(--my) * 1deg)) rotateY(calc(var(--mx) * 1.4deg)) translateY(0px);
  }
  50% {
    transform: rotateX(calc(30deg + var(--my) * 1deg)) rotateY(calc(var(--mx) * 1.4deg)) translateY(-9px);
  }
}

.book__spine-shadow {
  position: absolute;
  left: 50%;
  top: 3%;
  bottom: 3%;
  width: 5.5%;
  transform: translateX(-50%);
  background: linear-gradient(to right, rgba(0,0,0,0.32), rgba(0,0,0,0.02) 45%, rgba(0,0,0,0.02) 55%, rgba(0,0,0,0.32));
  z-index: 6;
  pointer-events: none;
}

.page {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 50%;
  background: linear-gradient(150deg, var(--paper), var(--paper-dim) 130%);
  box-shadow: 0 40px 70px -25px rgba(0,0,0,0.65);
  padding: 7% 8%;
  overflow: hidden;
}

.page--left {
  left: 0;
  border-radius: 12px 3px 3px 12px;
  transform-origin: right center;
  transform: rotateY(3.5deg);
}

.page--right {
  right: 0;
  border-radius: 3px 12px 12px 3px;
  transform-origin: left center;
  transform: rotateY(-3.5deg);
}

.page__line {
  display: block;
  height: 6px;
  border-radius: 3px;
  background: rgba(75, 90, 120, 0.22);
  margin-bottom: 12%;
}
.page__line--1 { width: 78%; }
.page__line--2 { width: 55%; }
.page__line--3 { width: 66%; margin-bottom: 0; }
.page__line--4 { width: 60%; margin-top: 10%; }
.page__line--5 { width: 40%; }

.page__photo {
  display: block;
  width: 68%;
  height: 42%;
  border-radius: 6px;
  margin-bottom: 12%;
  box-shadow: 0 8px 20px -8px rgba(0,0,0,0.35), inset 0 0 0 1px rgba(255,255,255,0.18);
}
.page__photo--a { background: linear-gradient(150deg, var(--gold-soft), var(--dusk-soft) 140%); }
.page__photo--b { background: linear-gradient(150deg, var(--dusk-soft), var(--gold) 140%); }

.page-turn {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 26%;
  height: 26%;
  background: linear-gradient(135deg, transparent 55%, rgba(75, 46, 20, 0.16) 55%);
  border-radius: 0 0 12px 0;
  transform-origin: bottom right;
  animation: pageCurl 9s ease-in-out infinite;
}

@keyframes pageCurl {
  0%, 12%, 100% { transform: rotateY(0deg); opacity: 0.55; }
  6% { transform: rotateY(-18deg); opacity: 0.85; }
}

.floating-photo {
  position: absolute;
  border-radius: 6px;
  box-shadow: 0 20px 40px -12px rgba(0,0,0,0.55), 0 0 0 5px var(--paper);
  opacity: 0;
  animation: fadeInOnce 1.1s var(--ease-out) forwards, floatLoop 6.5s ease-in-out infinite;
  animation-delay: var(--delay, 0s), var(--delay, 0s);
  transform: rotate(var(--r, 0deg));
}

@keyframes fadeInOnce {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes floatLoop {
  0%, 100% { transform: translateY(0) rotate(var(--r, 0deg)); }
  50% { transform: translateY(-11px) rotate(calc(var(--r, 0deg) + 2deg)); }
}

.fp--1 {
  top: 6%; left: 4%;
  width: 15%; height: 30%;
  --r: -9deg; --delay: 0.25s;
  background: linear-gradient(160deg, var(--gold-soft), var(--dusk) 130%);
}
.fp--2 {
  top: -9%; right: 16%;
  width: 12%; height: 24%;
  --r: 7deg; --delay: 0.55s;
  background: linear-gradient(160deg, var(--dusk-soft), var(--gold-soft) 130%);
}
.fp--3 {
  bottom: 2%; left: 22%;
  width: 11%; height: 22%;
  --r: 5deg; --delay: 0.85s;
  background: linear-gradient(160deg, var(--gold), var(--dusk-soft) 130%);
}
.fp--4 {
  top: 18%; right: -3%;
  width: 13%; height: 26%;
  --r: -6deg; --delay: 1.1s;
  background: linear-gradient(160deg, var(--dusk), var(--gold-soft) 130%);
}

.scroll-cue {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  margin: 1.5rem auto 0;
  color: var(--text-faint);
  font-size: 0.75rem;
  animation: cueBob 2.4s ease-in-out infinite;
}
.scroll-cue svg { width: 14px; height: 20px; stroke: currentColor; fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }

@keyframes cueBob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(5px); }
}

/* =========================================================
   Features / Chapters
   ========================================================= */

.features { padding-block: clamp(4.5rem, 9vw, 7.5rem); }

.section-head {
  max-width: 42ch;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.section-head p { margin-top: 0.9rem; font-size: 1.05rem; }

.chapters {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.chapter {
  background: var(--ink);
  padding: clamp(1.8rem, 3vw, 2.6rem);
  transition: background-color 0.35s ease;
}
.chapter:hover { background: var(--ink-2); }

.chapter__mark {
  display: block;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--gold);
  margin-bottom: 1.1rem;
}

.chapter h3 { margin-bottom: 0.6rem; }
.chapter p { max-width: 38ch; }

/* =========================================================
   Why Remzy
   ========================================================= */

.why {
  padding-block: clamp(4.5rem, 9vw, 7.5rem);
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}

.why__grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}

.why__copy p { margin-top: 1.1rem; font-size: 1.05rem; max-width: 52ch; }

.pillars {
  margin-top: 2.6rem;
  display: flex;
  flex-direction: column;
}
.pillars li {
  padding-block: 1.4rem;
  border-top: 1px solid var(--hairline);
}
.pillars li:last-child { border-bottom: 1px solid var(--hairline); }
.pillars h3 { font-size: 1.05rem; margin-bottom: 0.35rem; }
.pillars p { font-size: 0.95rem; max-width: 42ch; }

.why__visual { display: flex; justify-content: center; }

.stack {
  position: relative;
  width: 240px;
  height: 260px;
}

.polaroid {
  position: absolute;
  width: 150px;
  height: 178px;
  background: var(--paper);
  border-radius: 4px;
  box-shadow: 0 25px 45px -18px rgba(0,0,0,0.6);
  padding: 10px 10px 26px;
}
.polaroid::before {
  content: "";
  position: absolute;
  inset: 10px 10px 26px;
  border-radius: 2px;
}
.polaroid--1 { top: 10px; left: 0; transform: rotate(-9deg); z-index: 1; }
.polaroid--1::before { background: linear-gradient(150deg, var(--gold-soft), var(--dusk-soft) 140%); }
.polaroid--2 { top: 30px; left: 60px; transform: rotate(6deg); z-index: 2; }
.polaroid--2::before { background: linear-gradient(150deg, var(--dusk-soft), var(--gold) 140%); }
.polaroid--3 { top: 0; left: 30px; transform: rotate(-2deg); z-index: 3; }
.polaroid--3::before { background: linear-gradient(150deg, var(--gold), var(--dusk) 140%); }

/* =========================================================
   Coming soon
   ========================================================= */

.coming-soon {
  padding-block: clamp(4.5rem, 9vw, 7rem);
  text-align: center;
  position: relative;
  background: radial-gradient(ellipse 60% 90% at 50% 0%, rgba(201, 162, 92, 0.08), transparent 65%);
}

.coming-soon__inner {
  max-width: 46ch;
  margin-inline: auto;
}

.coming-soon h2 { margin-inline: auto; }
.coming-soon p { margin-top: 1rem; }

.notify-form {
  margin-top: 2.2rem;
  display: flex;
  gap: 0.6rem;
  justify-content: center;
  flex-wrap: wrap;
}

.notify-form input {
  font: inherit;
  font-size: 0.95rem;
  padding: 0.85rem 1.1rem;
  min-width: 240px;
  border-radius: 999px;
  border: 1px solid rgba(243, 238, 228, 0.2);
  background: var(--ink-2);
  color: var(--text-hi);
}
.notify-form input::placeholder { color: var(--text-faint); }
.notify-form input:focus { border-color: var(--gold-soft); }

.notify-note {
  margin-top: 1rem;
  font-size: 0.82rem;
  color: var(--text-faint);
}
.notify-note.is-success { color: var(--gold-soft); }

/* =========================================================
   Contact / Company
   ========================================================= */

.contact { padding-block: clamp(4.5rem, 9vw, 7.5rem); }

.contact__grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}

.contact p { margin-top: 0.9rem; font-size: 1.05rem; max-width: 44ch; }

.contact__email {
  display: inline-block;
  margin-top: 1.6rem;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 1.1rem + 1.2vw, 2rem);
  color: var(--gold-soft);
  border-bottom: 1px solid rgba(228, 201, 138, 0.35);
  padding-bottom: 0.2rem;
  transition: border-color 0.25s ease, color 0.25s ease;
}
.contact__email:hover { color: var(--gold); border-color: var(--gold); }

.contact__company {
  padding-left: clamp(0px, 4vw, 3rem);
  border-left: 1px solid var(--hairline);
}
.contact__company h3 { font-size: 1rem; color: var(--text-lo); font-weight: 600; font-family: var(--font-body); }
.contact__company p { margin-top: 0.6rem; font-size: 0.98rem; }
.contact__company a:hover { color: var(--text-hi); }

/* =========================================================
   Footer
   ========================================================= */

.site-footer {
  border-top: 1px solid var(--hairline);
  padding-top: clamp(3rem, 6vw, 4rem);
  background: var(--ink-2);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
}

.footer__brand p { margin-top: 0.8rem; font-size: 0.92rem; max-width: 26ch; }

.footer__nav, .footer__meta { display: flex; flex-direction: column; gap: 0.7rem; font-size: 0.92rem; }
.footer__nav a, .footer__meta a { color: var(--text-lo); transition: color 0.2s ease; }
.footer__nav a:hover, .footer__meta a:hover { color: var(--text-hi); }
.footer__meta p { color: var(--text-lo); }

.footer__bottom {
  padding-block: 1.4rem;
  border-top: 1px solid var(--hairline);
  font-size: 0.82rem;
  color: var(--text-faint);
}

/* =========================================================
   Reveal-on-scroll (single, restrained pass)
   ========================================================= */

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================================
   Responsive
   ========================================================= */

@media (max-width: 860px) {
  .site-nav, .header__cta { display: none; }
  .nav-toggle { display: flex; }
  .mobile-nav.is-open { display: flex; }

  .why__grid { grid-template-columns: 1fr; }
  .why__visual { order: -1; }

  .contact__grid { grid-template-columns: 1fr; }
  .contact__company { border-left: none; padding-left: 0; border-top: 1px solid var(--hairline); padding-top: 1.5rem; }

  .footer__inner { grid-template-columns: 1fr; gap: 2rem; }
}

@media (max-width: 620px) {
  .chapters { grid-template-columns: 1fr; }
  .notify-form { flex-direction: column; align-items: stretch; }
  .notify-form input { min-width: 0; }
}

/* =========================================================
   Reduced motion
   ========================================================= */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .mote, .book, .book-shadow, .page-turn, .floating-photo, .scroll-cue {
    animation: none !important;
  }
  .floating-photo { opacity: 1; }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}