/* ---------------------------------------------------------
   Splügi — Zürich-Enge
   Tokens
--------------------------------------------------------- */
:root{
  --paper: #F3F1EC;
  --paper-raised: #EBE8E1;
  --ink: #17191C;
  --ink-soft: #4A4B4D;
  --stone: #8D877A;
  --line: rgba(23,25,28,0.12);
  --line-strong: rgba(23,25,28,0.22);
  --accent: #2E4FA0;
  --accent-pale: #C9D6E6;
  --on-dark: #F3F1EC;

  --font: "Switzer", -apple-system, "Helvetica Neue", Arial, sans-serif;

  --measure: 34rem;
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --max: 1560px;

  --ease: cubic-bezier(.16,.8,.24,1);
  --dur-s: .5s;
  --dur-m: .9s;
  --dur-l: 1.4s;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
}

body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img{ max-width: 100%; display: block; }
a{ color: inherit; }
ul{ margin: 0; padding: 0; }
h1,h2,h3,p{ margin: 0; }

.grid{
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

section{ padding-block: clamp(4.5rem, 11vw, 9rem); }

/* ---------------------------------------------------------
   Masthead
--------------------------------------------------------- */
.masthead{
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.4rem var(--gutter);
  color: var(--on-dark);
  mix-blend-mode: difference;
  font-size: .8rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.masthead__mark{ text-decoration: none; font-weight: 600; }
.masthead__cta{ text-decoration: none; border-bottom: 1px solid currentColor; padding-bottom: .15em; }

/* ---------------------------------------------------------
   Hero
--------------------------------------------------------- */
.hero{
  position: relative;
  height: 100vh;
  min-height: 640px;
  padding: 0;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}
.hero__media{
  position: absolute;
  inset: 0;
}
.hero__img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 60% 55%;
  transform: scale(1.08);
  animation: hero-settle 2.4s var(--ease) forwards;
}
@keyframes hero-settle{ to{ transform: scale(1); } }
.hero__scrim{
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15,16,18,.62) 0%, rgba(15,16,18,.14) 42%, rgba(15,16,18,0) 66%);
}
.hero__content{
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 0 var(--gutter) clamp(2.5rem, 6vw, 4.5rem);
  color: var(--on-dark);
}
.hero__headline{
  font-size: clamp(2.8rem, 9vw, 7.2rem);
  font-weight: 600;
  line-height: .98;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}
.hero__headline .reveal-line{
  display: block;
  overflow: hidden;
}
.hero__headline .reveal-line span{
  display: block;
  transform: translateY(105%);
  animation: line-up var(--dur-l) var(--ease) forwards;
  animation-delay: .3s;
}
.hero__headline .reveal-line:nth-child(2) span{ animation-delay: .45s; }
@keyframes line-up{ to{ transform: translateY(0); } }

.hero__sub{
  margin-top: 1.4rem;
  max-width: 30rem;
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: rgba(243,241,236,.88);
}
.hero__row{
  margin-top: 2.4rem;
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  flex-wrap: wrap;
}
.hero__meta{
  font-size: .8rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: rgba(243,241,236,.72);
}

.reveal-fade, .reveal-up, .reveal-img{
  opacity: 0;
}
.hero .reveal-fade{ animation: fade-in var(--dur-m) var(--ease) forwards; animation-delay: .9s; }
@keyframes fade-in{ to{ opacity: 1; } }

/* ---------------------------------------------------------
   Buttons
--------------------------------------------------------- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-size: .85rem;
  letter-spacing: .04em;
  text-decoration: none;
  padding: .95rem 1.7rem;
  border: 1px solid currentColor;
  transition: background var(--dur-s) var(--ease), color var(--dur-s) var(--ease);
}
.btn--ghost-light{ color: var(--on-dark); }
.btn--ghost-light:hover{ background: var(--on-dark); color: var(--ink); }
.btn--dark{
  color: var(--paper);
  background: var(--ink);
  border-color: var(--ink);
}
.btn--dark:hover{ background: var(--accent); border-color: var(--accent); }
.btn:focus-visible{ outline: 2px solid var(--accent); outline-offset: 3px; }

/* ---------------------------------------------------------
   Shared type
--------------------------------------------------------- */
.kicker{
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--stone);
  margin-bottom: 1.2rem;
}

/* ---------------------------------------------------------
   Concept
--------------------------------------------------------- */
.concept__headline{
  font-size: clamp(2.2rem, 5vw, 5rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.01em;
  text-wrap: balance;
}
.concept__copy{
  margin-top: 1.6rem;
  max-width: var(--measure);
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--ink-soft);
}

/* ---------------------------------------------------------
   Gallery
--------------------------------------------------------- */
.gallery{ padding-block: clamp(4.5rem, 11vw, 9rem); }
.gallery__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.25rem, 3vw, 2rem);
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.gallery__item{
  margin: 0;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--paper-raised);
}
.gallery__item img{
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.gallery__credit{
  max-width: var(--max);
  margin: 1.6rem auto 0;
  padding-inline: var(--gutter);
  font-size: .8rem;
  letter-spacing: .02em;
  color: var(--stone);
  text-align: right;
}
.gallery__credit a{
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: color var(--dur-s) var(--ease);
}
.gallery__credit a:hover{ color: var(--accent); }

@media (min-width: 700px){
  .gallery__grid{ grid-template-columns: repeat(2, 1fr); }
}

/* ---------------------------------------------------------
   Use case
--------------------------------------------------------- */
.usecase__headline{
  font-size: clamp(2.2rem, 5vw, 5rem);
  font-weight: 500;
  line-height: 1.05;
  text-wrap: balance;
}
.usecase__list{
  margin-top: clamp(2.5rem, 5vw, 4rem);
  display: grid;
  grid-template-columns: 1fr;
  row-gap: .2rem;
}
.usecase__list li{
  list-style: none;
  font-size: clamp(1.7rem, 4vw, 2.3rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  padding: .55rem 0;
  transition: color var(--dur-s) var(--ease), padding-left var(--dur-s) var(--ease);
}
.usecase__list li:hover{ color: var(--accent); padding-left: .4rem; }
.usecase__list li::before{
  content: "+";
  display: inline-block;
  margin-right: .35em;
  color: var(--stone);
  font-size: .6em;
  vertical-align: .15em;
}

@media (min-width: 700px){
  .usecase__list{
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, auto);
    grid-auto-flow: column;
    column-gap: clamp(2rem, 5vw, 4rem);
    row-gap: .4rem;
  }
}

/* ---------------------------------------------------------
   Included
--------------------------------------------------------- */
.included__list{
  display: grid;
  grid-template-columns: 1fr;
  row-gap: 0;
}
.included__list li{
  list-style: none;
  font-size: clamp(1.15rem, 1.8vw, 1.4rem);
  padding: .8rem 0;
  color: var(--ink-soft);
}
.included__list li::before{
  content: "+";
  display: inline-block;
  margin-right: .35em;
  color: var(--stone);
  font-size: .75em;
}
@media (min-width: 700px){
  .included__list{
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, auto);
    grid-auto-flow: column;
    column-gap: clamp(1.5rem, 4vw, 3rem);
    row-gap: .3rem;
  }
}

/* ---------------------------------------------------------
   How it works
--------------------------------------------------------- */
.how .grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2.5rem, 6vw, 4rem);
  align-items: start;
}
.how__headline{
  margin-top: .2rem;
  font-size: clamp(2rem, 4.6vw, 4rem);
  font-weight: 500;
  line-height: 1.08;
  text-wrap: balance;
}
.how__copy{
  margin-top: 1.4rem;
  max-width: var(--measure);
  font-size: 1.05rem;
  color: var(--ink-soft);
}
.how__steps{
  margin-top: 2.6rem;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}
.how__steps li{
  display: flex;
  align-items: baseline;
  gap: 1.1rem;
  font-size: 1.05rem;
}
.how__num{
  font-size: .8rem;
  letter-spacing: .05em;
  color: var(--stone);
  font-variant-numeric: tabular-nums;
}
.how__image{ order: -1; }
.how__image img{ width: 100%; height: auto; }

@media (min-width: 900px){
  .how .grid{ grid-template-columns: 1.5fr 1fr; }
  .how__image{ order: 0; }
}

/* ---------------------------------------------------------
   Location
--------------------------------------------------------- */
.location__row{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(3rem, 8vw, 5rem);
}
.location__headline{
  font-size: clamp(2.1rem, 5vw, 4.2rem);
  font-weight: 500;
  letter-spacing: -0.01em;
}
.location__copy{
  margin-top: 1.2rem;
  max-width: 28rem;
  font-size: 1.05rem;
  color: var(--ink-soft);
}
.location__price{ display: flex; flex-direction: column; }

@media (min-width: 700px){
  .location__row{ grid-template-columns: 1.3fr 1fr; }
}

/* ---------------------------------------------------------
   Closing / CTA
--------------------------------------------------------- */
.closing{ background: var(--paper-raised); }
.closing__price{
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.closing__price-unit{
  font-size: .38em;
  font-weight: 400;
  color: var(--ink-soft);
}
.closing__note{
  margin-top: .8rem;
  font-size: .95rem;
  color: var(--stone);
}
.closing__headline{
  margin-top: clamp(3rem, 7vw, 5rem);
  font-size: clamp(1.8rem, 4.8vw, 5rem);
  font-weight: 500;
  line-height: 1.08;
  white-space: normal;
}

.form{
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  max-width: 34rem;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}
.form__row{ display: flex; flex-direction: column; gap: .5rem; }
.form__row label{
  font-size: .8rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--stone);
}
.form__row input, .form__row textarea{
  font-family: var(--font);
  font-size: 1rem;
  color: var(--ink);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line-strong);
  padding: .6rem 0;
  resize: vertical;
}
.form__row input:focus, .form__row textarea:focus{
  outline: none;
  border-color: var(--accent);
}
.form .btn{
  align-self: flex-start;
  margin-top: .6rem;
  cursor: pointer;
  background: var(--ink);
  color: var(--paper);
}
.form__status{
  font-size: .88rem;
  color: var(--accent);
  min-height: 1.2em;
}
.closing__small{
  margin-top: 2.5rem;
  font-size: .82rem;
  letter-spacing: .04em;
  color: var(--stone);
}

/* ---------------------------------------------------------
   Footer
--------------------------------------------------------- */
.footer{
  padding: 2.5rem var(--gutter) 3rem;
  font-size: .82rem;
  color: var(--stone);
}
.footer .grid{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: .5rem;
}
.footer a{ text-decoration: none; border-bottom: 1px solid var(--line-strong); }

/* ---------------------------------------------------------
   Scroll reveal (JS-driven)
--------------------------------------------------------- */
.reveal-up{ transform: translateY(22px); transition: opacity var(--dur-m) var(--ease), transform var(--dur-m) var(--ease); }
.reveal-fade{ transition: opacity var(--dur-m) var(--ease); }
.reveal-img{ transition: opacity var(--dur-l) var(--ease), transform var(--dur-l) var(--ease); transform: scale(1.03); }

.is-visible.reveal-up{ opacity: 1; transform: translateY(0); }
.is-visible.reveal-fade{ opacity: 1; }
.is-visible.reveal-img{ opacity: 1; transform: scale(1); }

.usecase__list .is-visible ~ li{ }

@media (prefers-reduced-motion: reduce){
  .hero__img, .hero__headline .reveal-line span, .reveal-up, .reveal-fade, .reveal-img{
    animation: none !important;
    transition: none !important;
    transform: none !important;
    opacity: 1 !important;
  }
}

/* scroll anchor offset */
section[id]{ scroll-margin-top: 5.5rem; }