/* ============================================================
   RICHARD ATELIER — Landingpage
   Design-System: Off-White-Basis, Logo-Braun, pastellige
   Subway-Akzente. Helvetica Neue. Mobile first.
   ============================================================ */

:root {
  /* Basis */
  --paper:        #F7F4EE;   /* Off-White, warm */
  --paper-deep:   #EFEAE0;
  --sand:         #B59C7A;   /* Brand-Beige (Briefing) */
  --umber:        #A98E6F;   /* Logo-Braun */
  --umber-deep:   #6E5C45;
  --ink:          #211D17;   /* warmes Fast-Schwarz */
  --ink-soft:     #5C5447;

  /* Subway-Pastell (entsättigt) */
  --line-green:   #9CBFA6;   /* 4·5·6 */
  --line-yellow:  #E0C98E;   /* N·Q·R */
  --line-magenta: #D49BB4;   /* Affekt */
  --line-blue:    #97AFC9;   /* A·C·E */
  --line-orange:  #DCAB8B;   /* B·D·F·M */
  --line-red:     #CC9490;   /* 1·2·3 */

  /* Typo */
  --font: "Helvetica Neue", Helvetica, "Neue Haas Grotesk", Arial, sans-serif;

  /* Bewegung */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-slow: 1100ms;
  --dur-med:  700ms;
}

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

html { height: 100%; }

body {
  height: 100dvh;
  overflow: hidden;
  font-family: var(--font);
  font-weight: 400;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

/* ------------------------------------------------------------
   Intro: Strich fährt ein, Fläche öffnet sich
   ------------------------------------------------------------ */
.intro {
  position: fixed;
  inset: 0;
  z-index: 100;
}
.intro-panel {
  position: absolute;
  left: 0;
  width: 100%;
  height: 50.5%; /* leichte Überlappung gegen Haarlinien-Spalt */
  background: var(--umber);
  transition: transform 1150ms var(--ease-out);
}
.intro-panel--top { top: 0; }
.intro-panel--bottom { bottom: 0; }
.intro-line {
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 1px;
  background: var(--paper);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 1000ms var(--ease-out), opacity 600ms ease 200ms;
}
.intro.is-line .intro-line { transform: scaleX(1); }
.intro.is-open .intro-panel--top { transform: translateY(-101%); }
.intro.is-open .intro-panel--bottom { transform: translateY(101%); }
.intro.is-open .intro-line { opacity: 0; }
body.intro-active .deck { overflow: hidden; }

/* ------------------------------------------------------------
   Deck: vollflächige Slides mit Scroll-Snap
   ------------------------------------------------------------ */
.deck {
  position: relative;
  height: 100dvh;
  overflow-y: auto;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
}
.deck::-webkit-scrollbar { display: none; }

/* Desktop: JS übernimmt die Folienfahrt, CSS-Snap aus */
body.js-snap .deck { scroll-snap-type: none; scroll-behavior: auto; }

.slide {
  position: relative;
  height: 100dvh;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(1.5rem, 5vw, 4rem) clamp(2.4rem, 7vw, 4rem);
  overflow: hidden;
}

/* Parallax-Gruppen (JS setzt transform über [data-px]) */
[data-px] { will-change: transform; }
.px-group {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--g, 1.8rem);
}

/* ------------------------------------------------------------
   Fixe UI-Ebene
   ------------------------------------------------------------ */
.ui-brand {
  position: fixed;
  top: clamp(1.1rem, 3vw, 2rem);
  left: clamp(2.4rem, 7vw, 4rem);
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--ink);
}
.ui-brand .brand-line {
  display: block;
  width: clamp(2.2rem, 7vw, 4rem);
  height: 1px;
  background: currentColor;
}
.ui-brand .brand-word {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.42em;
  text-transform: uppercase;
}

.ui-lang {
  position: fixed;
  top: clamp(1rem, 3vw, 1.9rem);
  right: clamp(2.4rem, 7vw, 4rem);
  z-index: 50;
  display: flex;
  gap: 0.35rem;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
}
.ui-lang a, .ui-lang span {
  text-decoration: none;
  color: var(--ink-soft);
  padding: 0.3rem 0.2rem;
}
.ui-lang [aria-current="true"] {
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
}
.ui-lang a:hover { color: var(--umber-deep); }

/* VIE / NYC Uhren */
.ui-clocks {
  position: fixed;
  bottom: clamp(1rem, 3vw, 1.8rem);
  left: clamp(2.4rem, 7vw, 4rem);
  z-index: 50;
  display: flex;
  gap: 1.4rem;
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  color: var(--ink-soft);
  text-transform: uppercase;
  font-variant-numeric: tabular-nums;
}
.ui-clocks .clock { display: flex; gap: 0.5em; align-items: baseline; }
.ui-clocks .clock::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  align-self: center;
}
.clock--vie::before { background: var(--line-yellow); }
.clock--nyc::before { background: var(--line-blue); }

/* Slide-Navigation: Subway-Kreise */
.ui-dots {
  position: fixed;
  right: clamp(0.9rem, 3vw, 2rem);
  top: 50%;
  transform: translateY(-50%);
  z-index: 50;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  list-style: none;
}
.ui-dots li { position: relative; display: flex; align-items: center; }
.ui-dots button {
  display: block;
  width: 9px; height: 9px;
  border-radius: 50%;
  border: 1px solid var(--ink-soft);
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: transform 300ms var(--ease-out), background 300ms, border-color 300ms;
}
.ui-dots button:hover { transform: scale(1.4); }
.ui-dots li[data-active="true"] button {
  border-color: transparent;
  background: var(--tip, var(--sand));
  transform: scale(1.35);
}

/* Fly-out: Sektionsname im Subway-Schild, Farbe = Punktfarbe */
.dot-tip {
  position: absolute;
  right: calc(100% + 0.9rem);
  top: 50%;
  transform: translateY(-50%) translateX(8px);
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--tip, var(--sand));
  padding: 0.55em 1.1em 0.5em 1.25em;
  border-radius: 999px;
  transition: opacity 320ms var(--ease-out), transform 320ms var(--ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .ui-dots li:hover .dot-tip,
  .ui-dots li:focus-within .dot-tip {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
  }
}

/* ------------------------------------------------------------
   Typografie
   ------------------------------------------------------------ */
.eyebrow {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--umber-deep);
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 2.4rem;
  height: 1px;
  background: currentColor;
  transform-origin: left center;
}

.display {
  font-weight: 300;
  font-size: clamp(2rem, 7.5vw, 4.6rem);
  line-height: 1.12;
  letter-spacing: -0.015em;
  max-width: 16ch;
}
.display strong { font-weight: 500; }

.lede {
  font-size: clamp(0.95rem, 2.4vw, 1.15rem);
  line-height: 1.7;
  color: var(--ink-soft);
  max-width: 46ch;
}

/* ------------------------------------------------------------
   Slide 1 — Hero
   ------------------------------------------------------------ */
.slide--hero { align-items: flex-start; }
.slide--hero .px-group { --g: 2.2rem; }
.hero-mark {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 1.8rem);
}
.hero-mark .mark-line {
  width: clamp(4.5rem, 22vw, 16rem);
  height: 1px;
  background: var(--ink);
  transform-origin: left center;
}
.hero-mark .mark-word {
  font-size: clamp(1.7rem, 8vw, 4.4rem);
  font-weight: 700;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  white-space: nowrap;
  /* Hover: Bild scheint durch die Buchstaben
     (Pfad relativ zur CSS-Datei; später echtes Foto einsetzen) */
  background-image: url("../assets/img/richard-atelier-011.png");
  background-size: cover;
  background-position: center;
  -webkit-background-clip: text;
  background-clip: text;
  transition: color 650ms var(--ease-out);
  cursor: default;
}
.hero-mark .mark-word:hover { color: transparent; }
.hero-mark .mark-sub {
  display: block;
  margin-top: 0.4rem;
  font-size: clamp(0.62rem, 1.8vw, 0.85rem);
  font-weight: 400;
  letter-spacing: 0.62em;
  text-transform: uppercase;
  color: var(--umber-deep);
}
.hero-claim {
  font-size: clamp(1rem, 3vw, 1.4rem);
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}
.hero-cities {
  font-size: 0.66rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--umber);
}
/* ------------------------------------------------------------
   Roter Faden — EINE durchgehende Linie über die gesamte
   Scroll-Höhe; scrollt mit dem Inhalt (absolute im Deck).
   ------------------------------------------------------------ */
.thread-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 3;            /* über Slide-Hintergründen, unter Inhalt */
  pointer-events: none;
}
.thread-layer svg { display: block; width: 100%; }
.thread-path {
  fill: none;
  stroke: var(--ink-soft);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.5;
  transition: stroke 600ms, opacity 600ms;
}
body[data-theme="sand"] .thread-path,
body[data-theme="dark"] .thread-path { stroke: var(--paper); opacity: 0.7; }

/* Bilder & Textspalten liegen über dem Faden */
.figure, .split-copy, .px-group { position: relative; z-index: 6; }

/* ------------------------------------------------------------
   Slides mit Bild + Statement
   ------------------------------------------------------------ */
.slide--split {
  display: grid;
  grid-template-rows: minmax(0, 1.1fr) auto;
  gap: clamp(1.4rem, 4vh, 3rem);
  align-content: center;
  padding-top: clamp(4.5rem, 12vh, 7rem);
  padding-bottom: clamp(3.5rem, 10vh, 5rem);
}
.figure {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}
.figure img {
  flex: 1;
  min-height: 0;
  width: 100%;
  object-fit: cover;
  display: block;
}
.figure-caption {
  margin-top: 0.6rem;
  font-size: 0.6rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--umber);
}
.split-copy {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

/* ------------------------------------------------------------
   Slide 3 — Die Frage (Beige-Vollfläche)
   ------------------------------------------------------------ */
.slide--question {
  background: var(--umber);
  color: var(--paper);
  overflow: hidden;
}
.slide--question::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(33, 24, 16, 0.24);
  pointer-events: none;
  z-index: 4;
}
.slide--question .slide-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.84;
  z-index: 2;
  pointer-events: none;
}
.slide--question .px-group { --g: 1.6rem; }
.slide--question .eyebrow { color: var(--paper); opacity: 0.75; }
.slide--question .lede { color: var(--paper); opacity: 0.85; }
.question-old {
  font-weight: 300;
  font-size: clamp(1.15rem, 3.6vw, 1.9rem);
  letter-spacing: 0.01em;
  position: relative;
  display: inline-block;
  opacity: 0.66;
}
.question-old .strike {
  position: absolute;
  left: -2%;
  top: 54%;
  width: 104%;
  height: 1px;
  background: var(--paper);
  transform: scaleX(0);
  transform-origin: left center;
}
.slide--question .display { max-width: 14ch; }

/* ------------------------------------------------------------
   Slide 4 — As-You-System (Andeutung)
   ------------------------------------------------------------ */
.asyou-phrase {
  font-weight: 300;
  font-size: clamp(2.1rem, 8vw, 4.8rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.asyou-word {
  display: inline-block;
  min-width: 6.6ch;
  font-weight: 500;
  color: var(--umber-deep);
  border-bottom: 1px solid var(--sand);
  transition: opacity 400ms var(--ease-out), transform 400ms var(--ease-out);
}
.asyou-word.is-swapping { opacity: 0; transform: translateY(0.35em); }
.asyou-rooms {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.6rem;
  font-size: 0.66rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-soft);
  list-style: none;
}
.asyou-rooms li { display: flex; align-items: center; gap: 0.55rem; }
.asyou-rooms li::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--dot, var(--sand));
}

/* ------------------------------------------------------------
   Slide 5 — Richard
   ------------------------------------------------------------ */
.slide--richard {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: clamp(1.4rem, 4vh, 2.6rem);
  align-content: center;
  padding-top: clamp(4.5rem, 12vh, 7rem);
  padding-bottom: clamp(3.5rem, 10vh, 5rem);
}
.richard-roles {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.4rem;
  font-size: 0.68rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--umber-deep);
  list-style: none;
}
.richard-roles li + li::before {
  content: "—";
  margin-right: 1.4rem;
  color: var(--sand);
}

/* ------------------------------------------------------------
   Slide 6 — Kontakt
   ------------------------------------------------------------ */
.slide--contact {
  background: var(--ink);
  color: var(--paper);
}
.slide--contact .px-group { --g: 2rem; width: 100%; }
.slide--contact .eyebrow { color: var(--sand); }
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 34rem;
  width: 100%;
}
.contact-form label {
  font-weight: 300;
  font-size: clamp(1.3rem, 4.4vw, 2.2rem);
  line-height: 1.3;
  letter-spacing: 0.005em;
}
.contact-row {
  display: flex;
  border-bottom: 1px solid rgba(247, 244, 238, 0.45);
  transition: border-color 300ms;
}
.contact-row:focus-within { border-color: var(--sand); }
.contact-form input[type="email"] {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: 0;
  outline: 0;
  color: var(--paper);
  font-family: var(--font);
  font-size: 1rem;
  letter-spacing: 0.04em;
  padding: 0.9rem 0;
}
.contact-form input::placeholder { color: rgba(247, 244, 238, 0.4); }
.contact-form button {
  background: transparent;
  border: 0;
  color: var(--sand);
  font-family: var(--font);
  font-size: 0.7rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 0.9rem 0 0.9rem 1rem;
  transition: color 250ms;
}
.contact-form button:hover { color: var(--line-yellow); }
.form-note {
  font-size: 0.78rem;
  color: rgba(247, 244, 238, 0.55);
  letter-spacing: 0.03em;
  min-height: 1.2em;
}
.contact-footer {
  position: absolute;
  bottom: clamp(1rem, 3vw, 1.8rem);
  right: clamp(2.4rem, 7vw, 4rem);
  text-align: right;
  font-size: 0.62rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: rgba(247, 244, 238, 0.55);
  line-height: 2;
}

/* Kontakt-Slide: fixe UI einfärben, wenn dunkle Slide aktiv */
body[data-theme="dark"] .ui-brand,
body[data-theme="dark"] .ui-clocks,
body[data-theme="dark"] .ui-lang a,
body[data-theme="dark"] .ui-lang span {
  color: var(--paper);
}
body[data-theme="dark"] .ui-lang [aria-current="true"] { border-color: var(--paper); }
body[data-theme="dark"] .ui-dots button { border-color: rgba(247, 244, 238, 0.6); }
body[data-theme="sand"] .ui-brand,
body[data-theme="sand"] .ui-clocks,
body[data-theme="sand"] .ui-lang a,
body[data-theme="sand"] .ui-lang span {
  color: var(--paper);
}
body[data-theme="sand"] .ui-lang [aria-current="true"] { border-color: var(--paper); }
body[data-theme="sand"] .ui-dots button { border-color: rgba(247, 244, 238, 0.7); }
.ui-brand, .ui-clocks, .ui-lang a, .ui-lang span, .ui-dots button {
  transition: color 500ms, border-color 500ms;
}

/* ------------------------------------------------------------
   Scroll-Reveal (dezent, innerhalb der Slides)
   ------------------------------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(1.4rem);
  transition:
    opacity var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
  transition-delay: var(--d, 0ms);
}
.slide.is-visible .reveal {
  opacity: 1;
  transform: none;
}

.reveal-line { /* Linien zeichnen sich */
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 1300ms var(--ease-out);
  transition-delay: var(--d, 0ms);
}
.slide.is-visible .reveal-line { transform: scaleX(1); }

.slide.is-visible .question-old .strike {
  transition: transform 900ms var(--ease-out) 600ms;
  transform: scaleX(1);
}

.figure .reveal-img {
  clip-path: inset(0 0 100% 0);
  transition: clip-path 1300ms var(--ease-out);
  transition-delay: var(--d, 0ms);
}
.slide.is-visible .figure .reveal-img { clip-path: inset(0 0 0 0); }

/* ------------------------------------------------------------
   Desktop-Layout
   ------------------------------------------------------------ */
@media (min-width: 768px) {
  .slide--split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-rows: none;
    align-items: center;
    gap: clamp(2.5rem, 6vw, 6rem);
  }
  .slide--split .figure { height: min(72vh, 46rem); }
  .slide--split.split--imgright .figure { order: 2; }
  .slide--richard {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
    grid-template-rows: none;
    align-items: center;
    gap: clamp(2.5rem, 6vw, 6rem);
  }
  .slide--richard .figure { height: min(72vh, 44rem); }
}

/* ------------------------------------------------------------
   Reduced Motion
   ------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  .deck { scroll-behavior: auto; }
  .reveal, .reveal-line, .figure .reveal-img, .question-old .strike {
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
    clip-path: none !important;
  }
  .intro { display: none; }
  [data-px] { transform: none !important; }
  .thread-path { stroke-dashoffset: 0 !important; }
}

/* Sichtbarer Tastatur-Fokus */
:focus-visible {
  outline: 1.5px solid var(--line-blue);
  outline-offset: 3px;
}

/* Honeypot — visuell & für Screenreader versteckt, für Bots sichtbar */
.hp-field {
  position: absolute !important;
  left: -9999px !important;
  width: 1px; height: 1px;
  overflow: hidden;
}