/* ============================================================================
   Lumen — AI portfolio builder for photographers
   DNA: high-end editorial portfolio. Near-monochrome paper palette, one quiet
   accent, generous whitespace, large refined serif display, gallery restraint.
   ========================================================================== */

:root {
  --paper:   #faf9f6;   /* base off-white */
  --paper-2: #f1efe9;   /* faint panel */
  --ink:     #111111;   /* near-black text */
  --ink-2:   #6d6a63;   /* muted */
  --line:    rgba(17,17,17,0.12);
  --accent:  #b8552f;   /* one quiet terracotta accent */
  --r: 2px;
  --maxw: 1240px;
  --ease: cubic-bezier(.16,1,.3,1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  font-weight: 400;
  line-height: 1.55;
  letter-spacing: .1px;
  overflow-x: hidden;            /* contain the horizontal track */
  -webkit-font-smoothing: antialiased;
}

@media (pointer: fine) and (prefers-reduced-motion: no-preference) {
  body.has-cursor { cursor: none; }
  body.has-cursor a,
  body.has-cursor .btn { cursor: none; }
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4, blockquote {
  font-family: "Fraunces", Georgia, "Times New Roman", serif;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 0;
}

.eyebrow {
  font-size: 12px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin: 0 0 22px;
  font-weight: 500;
}

/* ---------- layout helpers ---------- */
section { padding: clamp(72px, 11vw, 150px) 0; }
.section__head { max-width: var(--maxw); margin: 0 auto clamp(40px, 6vw, 72px); padding: 0 var(--gut, 24px); min-width: 0; }
.section__title { font-size: clamp(28px, 4.6vw, 56px); line-height: 1.05; max-width: 18ch; }

:root { --gut: clamp(20px, 5vw, 56px); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5em; font-family: "Inter", sans-serif;
  font-size: 14px; font-weight: 500; letter-spacing: .02em;
  padding: 13px 24px; border-radius: 999px; border: 1px solid transparent;
  transition: background .35s var(--ease), color .35s var(--ease),
              border-color .35s var(--ease), transform .35s var(--ease);
}
.btn--solid { background: var(--ink); color: var(--paper); }
.btn--solid:hover { background: var(--accent); transform: translateY(-2px); }
.btn--ghost { border-color: var(--line); color: var(--ink); }
.btn--ghost:hover { border-color: var(--ink); transform: translateY(-2px); }
.btn--text { padding: 13px 4px; color: var(--ink-2); }
.btn--text:hover { color: var(--ink); }
.btn--lg { padding: 17px 34px; font-size: 15px; }

/* ============ NAV ============ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background .4s var(--ease), border-color .4s var(--ease), backdrop-filter .4s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(250,249,246,0.78);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
}
.nav__inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: 18px var(--gut);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: "Fraunces", serif; font-size: 21px; letter-spacing: -0.01em;
}
.brand__mark {
  width: 13px; height: 13px; border-radius: 50%;
  background: radial-gradient(circle at 32% 30%, #fff, var(--accent) 62%, #6e2f17);
  box-shadow: 0 0 0 1px var(--line);
}
.nav__links { display: flex; gap: 30px; }
.nav__links a {
  font-size: 14px; color: var(--ink-2); position: relative; padding: 4px 0;
  transition: color .3s var(--ease);
}
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--ink); transition: width .35s var(--ease);
}
.nav__links a:hover { color: var(--ink); }
.nav__links a:hover::after { width: 100%; }
.nav__cta { padding: 9px 18px; }

/* ============ HERO ============ */
.hero {
  padding-top: clamp(120px, 18vh, 200px);
  padding-bottom: clamp(60px, 9vw, 110px);
  position: relative;
}
.hero__grid {
  max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gut);
  display: grid; grid-template-columns: 1.15fr .85fr;
  gap: clamp(32px, 5vw, 72px); align-items: center;
}
.hero__copy { min-width: 0; }
.hero__title {
  font-size: clamp(40px, 7.4vw, 92px);
  line-height: 1.02; letter-spacing: -0.025em; margin-bottom: 28px;
}
.hero__title em { font-style: italic; color: var(--accent); }
.hero__sub {
  font-size: clamp(15px, 1.5vw, 18px); color: var(--ink-2);
  max-width: 46ch; margin: 0 0 34px;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

.hero__art {
  position: relative; min-width: 0; height: clamp(360px, 42vw, 540px);
}
.frame {
  position: absolute; border-radius: var(--r); overflow: hidden;
  box-shadow: 0 30px 70px -34px rgba(17,17,17,.45);
  border: 1px solid var(--line);
}
.frame--tall { inset: 0 26% 12% 0; }
.ph--2 { right: 0; top: 6%; width: 42%; height: 40%; }
.ph--3 { right: 8%; bottom: 0; width: 50%; height: 38%; }
.frame.ph--2, .frame.ph--3 { position: absolute; }

.hero__scrollhint {
  max-width: var(--maxw); margin: clamp(40px,6vw,72px) auto 0; padding: 0 var(--gut);
  display: flex; align-items: center; gap: 12px;
  font-size: 11px; letter-spacing: .26em; text-transform: uppercase; color: var(--ink-2);
}
.hero__scrollhint i {
  width: 46px; height: 1px; background: var(--ink-2); position: relative; overflow: hidden;
}
.hero__scrollhint i::after {
  content: ""; position: absolute; inset: 0; width: 40%; background: var(--ink);
  animation: slide 2.4s var(--ease) infinite;
}
@keyframes slide { 0%{transform:translateX(-100%)} 100%{transform:translateX(250%)} }

/* ---------- generated "photo" panels (duotone gradients) ---------- */
.ph { width: 100%; height: 100%; background-size: cover; position: relative; }
.ph::after {            /* film grain / vignette */
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(120% 120% at 70% 10%, transparent 40%, rgba(17,17,17,.22));
  mix-blend-mode: multiply;
}
.ph--1 { background: linear-gradient(150deg,#2c3340 0%,#5d4a52 48%,#caa089 100%); }
.ph--2 { background: linear-gradient(140deg,#7a8b8e,#d8c3a5); }
.ph--3 { background: linear-gradient(160deg,#3a2f3a,#9b6b5a 70%,#e4c9a8); }

.ph--g1 { background: linear-gradient(150deg,#11151c,#37414f 55%,#8893a0); }
.ph--g2 { background: linear-gradient(150deg,#cdbfa6,#e9ddc6 50%,#7b95a0); }
.ph--g3 { background: linear-gradient(150deg,#2a2026,#6e4b48 60%,#caa17e); }
.ph--g4 { background: linear-gradient(150deg,#1c1712,#7a3f22 60%,#d99a55); }
.ph--g5 { background: linear-gradient(150deg,#10242b,#2f6b6a 55%,#cfcab0); }
.ph--g6 { background: linear-gradient(150deg,#26222b,#5c4a63 55%,#c9a8b8); }

.ph--f1 { background: linear-gradient(150deg,#2c3340,#9d8266); }
.ph--f2 { background: linear-gradient(150deg,#1f2a2e,#6f8a86 60%,#d7c6a8); }
.ph--f3 { background: linear-gradient(150deg,#33232b,#b06a44 70%,#e6c79a); }

/* ============ HORIZONTAL GALLERY (wow) ============ */
.gallery { padding: 0; }
.gallery__sticky {
  position: sticky; top: 0; min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
  padding: clamp(80px,10vw,120px) 0 clamp(40px,6vw,70px);
  overflow: hidden;
}
.gallery__head {
  max-width: var(--maxw); margin: 0 auto clamp(28px,4vw,48px);
  padding: 0 var(--gut); width: 100%; min-width: 0;
}
.gallery__title { font-size: clamp(26px,4vw,48px); line-height: 1.05; max-width: 16ch; }

.gallery__track {
  display: flex; gap: clamp(18px,2.4vw,34px);
  padding: 0 var(--gut);
  will-change: transform;
}
.gframe {
  flex: 0 0 clamp(260px, 30vw, 420px);
  position: relative;
}
.gframe > .ph {
  height: clamp(340px, 46vh, 520px);
  border-radius: var(--r); overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 28px 60px -34px rgba(17,17,17,.5);
  filter: grayscale(1) contrast(1.02);
  transition: filter .55s var(--ease), transform .55s var(--ease);
}
.gframe:hover > .ph { filter: grayscale(0) contrast(1); transform: translateY(-6px); }
.gframe__meta {
  display: flex; justify-content: space-between; gap: 12px;
  margin-top: 14px; font-size: 12.5px; color: var(--ink-2);
}
.gframe__meta span:first-child {
  font-family: "Fraunces", serif; font-size: 16px; color: var(--ink); letter-spacing: -.01em;
}
.gallery__hint {
  max-width: var(--maxw); width: 100%; margin: clamp(22px,3vw,34px) auto 0; padding: 0 var(--gut);
  font-size: 11px; letter-spacing: .26em; text-transform: uppercase; color: var(--ink-2);
}

/* ============ HOW ============ */
.steps {
  max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gut);
  list-style: none; display: grid; grid-template-columns: repeat(3,1fr);
  gap: clamp(28px,4vw,56px); counter-reset: none;
}
.step { min-width: 0; border-top: 1px solid var(--line); padding-top: 26px; }
.step__no {
  font-family: "Fraunces", serif; font-size: 15px; color: var(--accent);
  letter-spacing: .1em; display: block; margin-bottom: 30px;
}
.step h3 { font-size: clamp(22px,2.6vw,30px); margin-bottom: 12px; }
.step p { color: var(--ink-2); font-size: 15.5px; max-width: 34ch; }

/* ============ FEATURES ============ */
.feature-grid {
  max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gut);
  display: grid; grid-template-columns: repeat(3,1fr); gap: clamp(24px,3vw,40px);
}
.feature { min-width: 0; }
.feature__art {
  height: clamp(220px,24vw,300px); border-radius: var(--r); overflow: hidden;
  border: 1px solid var(--line); margin-bottom: 22px;
  box-shadow: 0 24px 50px -34px rgba(17,17,17,.45);
  filter: grayscale(.55); transition: filter .55s var(--ease);
}
.feature:hover .feature__art { filter: grayscale(0); }
.feature h3 { font-size: clamp(20px,2.2vw,26px); margin-bottom: 10px; }
.feature p { color: var(--ink-2); font-size: 15px; max-width: 36ch; }

/* ============ STATS ============ */
.stats { background: var(--paper-2); border-block: 1px solid var(--line); }
.stats__row {
  max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gut);
  display: grid; grid-template-columns: repeat(4,1fr); gap: clamp(20px,3vw,40px);
}
.stat { min-width: 0; text-align: left; }
.stat__num {
  font-family: "Fraunces", serif; font-size: clamp(40px,6vw,76px);
  line-height: 1; display: block; letter-spacing: -.03em;
}
.stat__label {
  display: block; margin-top: 14px; font-size: 13px; color: var(--ink-2);
  letter-spacing: .02em;
}

/* ============ QUOTE ============ */
.quote { padding-block: clamp(90px,13vw,170px); }
.quote blockquote {
  max-width: 1000px; margin: 0 auto; padding: 0 var(--gut); text-align: center;
}
.quote blockquote p {
  font-size: clamp(24px,3.6vw,46px); line-height: 1.18; letter-spacing: -.01em;
}
.quote em { font-style: italic; color: var(--accent); }
.quote footer { margin-top: 36px; display: flex; flex-direction: column; gap: 4px; }
.quote__name { font-family: "Fraunces", serif; font-size: 18px; }
.quote__role { font-size: 13px; color: var(--ink-2); letter-spacing: .02em; }

/* ============ PRICING ============ */
.tiers {
  max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gut);
  display: grid; grid-template-columns: repeat(3,1fr); gap: clamp(18px,2.2vw,28px);
  align-items: stretch;
}
.tier {
  min-width: 0; border: 1px solid var(--line); border-radius: 6px;
  padding: clamp(28px,3vw,40px); display: flex; flex-direction: column;
  background: var(--paper); position: relative;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.tier:hover { transform: translateY(-5px); box-shadow: 0 30px 60px -40px rgba(17,17,17,.4); }
.tier--feature { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.tier--feature .tier__desc,
.tier--feature .tier__list li { color: rgba(250,249,246,.74); }
.tier--feature .tier__list li::before { background: var(--accent); }
.tier__tag {
  position: absolute; top: -11px; left: clamp(28px,3vw,40px);
  background: var(--accent); color: #fff; font-size: 11px; letter-spacing: .12em;
  text-transform: uppercase; padding: 5px 11px; border-radius: 999px;
}
.tier__name { font-size: 24px; margin-bottom: 6px; }
.tier__price {
  font-family: "Fraunces", serif; font-size: clamp(38px,4.4vw,52px);
  letter-spacing: -.03em; margin: 4px 0 0;
}
.tier__price span { font-size: 16px; color: var(--ink-2); font-family: "Inter",sans-serif; }
.tier--feature .tier__price span { color: rgba(250,249,246,.6); }
.tier__desc { color: var(--ink-2); font-size: 14px; margin: 14px 0 24px; }
.tier__list { list-style: none; margin: 0 0 30px; padding: 0; display: grid; gap: 12px; flex: 1; }
.tier__list li {
  font-size: 14.5px; color: var(--ink-2); padding-left: 22px; position: relative;
}
.tier__list li::before {
  content: ""; position: absolute; left: 0; top: .62em;
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
}
.tier__cta { width: 100%; }

/* ============ FINAL CTA ============ */
.cta { text-align: center; }
.cta__inner { max-width: 900px; margin: 0 auto; padding: 0 var(--gut); }
.cta__title {
  font-size: clamp(30px,5.2vw,66px); line-height: 1.05; letter-spacing: -.02em;
  margin-bottom: 38px;
}
.cta__fine { margin-top: 22px; font-size: 13px; color: var(--ink-2); letter-spacing: .02em; }

/* ============ FOOTER ============ */
.footer { border-top: 1px solid var(--line); padding: clamp(56px,7vw,84px) 0 40px; }
.footer__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gut);
  display: grid; grid-template-columns: 1.4fr 1.6fr; gap: clamp(36px,5vw,72px);
}
.footer__brand { min-width: 0; }
.footer__brand p { color: var(--ink-2); font-size: 14px; margin: 16px 0 0; max-width: 30ch; }
.footer__cols { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; min-width: 0; }
.footer__cols h4 {
  font-family: "Inter", sans-serif; font-size: 12px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--ink); font-weight: 600; margin: 0 0 16px;
}
.footer__cols a { display: block; font-size: 14px; color: var(--ink-2); padding: 5px 0; transition: color .3s; }
.footer__cols a:hover { color: var(--ink); }
.footer__base {
  max-width: var(--maxw); margin: clamp(40px,5vw,64px) auto 0; padding: 26px var(--gut) 0;
  border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
  font-size: 12.5px; color: var(--ink-2);
}
.footer__note { letter-spacing: .01em; }

/* ============ CUSTOM CURSOR ============ */
.cursor {
  position: fixed; top: 0; left: 0; z-index: 9999; pointer-events: none;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--ink);
  transform: translate(-50%,-50%);
  display: none;
  align-items: center; justify-content: center;
  transition: width .3s var(--ease), height .3s var(--ease), background .3s var(--ease);
  mix-blend-mode: difference;
}
.cursor.is-active {
  width: 84px; height: 84px; background: var(--paper); mix-blend-mode: normal;
  box-shadow: 0 0 0 1px var(--line);
}
.cursor__label {
  font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--ink);
  font-weight: 500; opacity: 0; transform: scale(.6); transition: opacity .3s, transform .3s;
}
.cursor.is-active .cursor__label { opacity: 1; transform: scale(1); }

/* ============ REVEALS ============ */
.reveal {
  opacity: 0; transform: translateY(26px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }

/* ============ RESPONSIVE ============ */
@media (max-width: 1000px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__art { height: clamp(300px, 60vw, 420px); margin-top: 8px; }
  .steps { grid-template-columns: 1fr 1fr; }
  .feature-grid { grid-template-columns: 1fr; max-width: 560px; }
  .stats__row { grid-template-columns: 1fr 1fr; gap: 36px 28px; }
  .tiers { grid-template-columns: 1fr; max-width: 460px; }
  .footer__inner { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .nav__links { display: none; }
  .gallery__sticky { position: static; min-height: 0; }
  /* degrade horizontal gallery to native overflow scroll, contained */
  .gallery__track {
    overflow-x: auto; overflow-y: hidden;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 10px; transform: none !important;
  }
  .gframe { scroll-snap-align: start; flex-basis: 76vw; }
  .gallery__hint { display: none; }
}

@media (max-width: 480px) {
  .steps { grid-template-columns: 1fr; }
  .stats__row { grid-template-columns: 1fr; gap: 30px; }
  .hero__actions { width: 100%; }
  .hero__actions .btn--solid { flex: 1; }
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
  .gallery__track { transform: none !important; }
  .gallery__sticky { position: static; min-height: 0; }
  .cursor { display: none !important; }
  .gframe > .ph, .feature__art { filter: grayscale(0) !important; }
}