/* Premium interaction layer for the Zermatt portfolio.
   CSS-only by design: no animation library, no extra runtime JS. */

::selection {
  background: rgba(199, 168, 107, .28);
  color: #fff;
}

.portfolio-site {
  position: relative;
  isolation: isolate;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.portfolio-site::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(circle at 18% 9%, rgba(199,168,107,.055), transparent 28rem),
    radial-gradient(circle at 92% 34%, rgba(255,255,255,.025), transparent 24rem);
}

.portfolio-site::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  opacity: .035;
  background-image:
    repeating-linear-gradient(0deg, rgba(255,255,255,.12) 0 1px, transparent 1px 3px),
    repeating-linear-gradient(90deg, rgba(255,255,255,.08) 0 1px, transparent 1px 4px);
  mix-blend-mode: soft-light;
}

/* Navigation */
.portfolio-nav {
  transition: background-color .35s ease, border-color .35s ease;
}

.portfolio-nav::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(199,168,107,.55), transparent);
  transform: scaleX(.35);
  opacity: .5;
}

.portfolio-mark {
  position: relative;
}

.portfolio-mark::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 8px;
  width: 100%;
  height: 1px;
  background: var(--pf-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
}

.portfolio-mark:hover::after { transform: scaleX(1); }

.portfolio-nav-links a {
  position: relative;
  transition: color .22s ease;
}

.portfolio-nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 8px;
  height: 1px;
  background: var(--pf-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
}

.portfolio-nav-links a:hover::after { transform: scaleX(1); }

/* Hero */
.portfolio-hero {
  position: relative;
  overflow: clip;
}

.portfolio-hero::before {
  content: "";
  position: absolute;
  width: min(54vw, 760px);
  aspect-ratio: 1;
  right: -16vw;
  top: -22vw;
  border: 1px solid rgba(199,168,107,.11);
  border-radius: 50%;
  box-shadow:
    0 0 0 8vw rgba(199,168,107,.018),
    0 0 0 16vw rgba(199,168,107,.012);
  pointer-events: none;
  animation: portfolio-orbit 18s ease-in-out infinite alternate;
}

.portfolio-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.portfolio-kicker::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: 0 0 6px;
  border-radius: 50%;
  background: #9ecf9a;
  box-shadow: 0 0 0 0 rgba(158,207,154,.4);
  animation: portfolio-pulse 2.5s ease-out infinite;
}

.portfolio-title {
  perspective: 800px;
}

.portfolio-title-line {
  display: inline-block;
  transform-origin: 0 100%;
  animation: portfolio-title-in .78s cubic-bezier(.22,.8,.22,1) both;
}

.portfolio-title-line:nth-of-type(2) { animation-delay: .09s; }
.portfolio-title-line:nth-of-type(3) { animation-delay: .18s; }

.portfolio-hero-grid {
  animation: portfolio-fade-up .75s .28s cubic-bezier(.22,.8,.22,1) both;
}

.portfolio-meta {
  position: relative;
  padding-left: 18px;
}

.portfolio-meta::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 1px;
  background: linear-gradient(var(--pf-accent), transparent);
}

.portfolio-scroll-cue {
  margin-top: 46px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--pf-muted);
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.portfolio-scroll-cue::before {
  content: "";
  width: 42px;
  height: 1px;
  background: var(--pf-line);
}

.portfolio-scroll-cue span {
  display: inline-block;
  animation: portfolio-nudge 1.8s ease-in-out infinite;
}

/* Buttons */
.portfolio-btn {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition:
    transform .24s cubic-bezier(.22,.8,.22,1),
    border-color .24s ease,
    color .24s ease,
    background-color .24s ease,
    box-shadow .24s ease;
}

.portfolio-btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(110deg, transparent 25%, rgba(255,255,255,.13) 45%, transparent 65%);
  transform: translateX(-130%);
  transition: transform .55s ease;
}

.portfolio-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0,0,0,.18);
}

.portfolio-btn:hover::before { transform: translateX(130%); }
.portfolio-btn:active { transform: translateY(-1px) scale(.99); }

/* Sections */
.portfolio-section-head {
  position: relative;
}

.portfolio-eyebrow {
  transition: letter-spacing .3s ease, color .3s ease;
}

.portfolio-section:hover .portfolio-eyebrow { letter-spacing: .24em; }

.portfolio-h2 {
  text-wrap: balance;
}

/* Showreel */
.portfolio-video {
  box-shadow: 0 20px 60px rgba(0,0,0,.16);
  transition: border-color .3s ease, transform .35s cubic-bezier(.22,.8,.22,1), box-shadow .35s ease;
}

.portfolio-video:hover {
  transform: translateY(-3px);
  border-color: rgba(199,168,107,.34);
  box-shadow: 0 28px 80px rgba(0,0,0,.28);
}

/* Services */
.portfolio-service {
  position: relative;
  overflow: hidden;
  transition: background-color .3s ease, transform .3s cubic-bezier(.22,.8,.22,1);
}

.portfolio-service::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--pf-accent), transparent 70%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
}

.portfolio-service::after {
  content: "↗";
  position: absolute;
  right: 24px;
  top: 22px;
  color: var(--pf-muted);
  opacity: 0;
  transform: translate(-6px, 6px);
  transition: opacity .25s ease, transform .25s ease, color .25s ease;
}

.portfolio-service:hover {
  background: var(--pf-panel);
  transform: translateY(-2px);
}

.portfolio-service:hover::before { transform: scaleX(1); }
.portfolio-service:hover::after { opacity: 1; transform: translate(0,0); color: var(--pf-accent); }
.portfolio-service h3 { transition: transform .3s ease; }
.portfolio-service:hover h3 { transform: translateX(5px); }

/* Project cards */
.portfolio-card {
  position: relative;
  overflow: hidden;
  transition:
    background-color .28s ease,
    transform .32s cubic-bezier(.22,.8,.22,1),
    box-shadow .32s ease;
}

.portfolio-card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border: 1px solid transparent;
  transition: border-color .3s ease;
}

.portfolio-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 55px rgba(0,0,0,.18);
  z-index: 2;
}

.portfolio-card:hover::after { border-color: rgba(199,168,107,.24); }

.portfolio-card-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255,255,255,.08), transparent 35%, transparent 68%, rgba(199,168,107,.06));
  opacity: 0;
  transition: opacity .35s ease;
}

.portfolio-card:hover .portfolio-card-media::after { opacity: 1; }
.portfolio-card-media img { transition: transform .55s cubic-bezier(.2,.75,.2,1), filter .4s ease, opacity .35s ease; }
.portfolio-card:hover .portfolio-card-media img { transform: scale(1.045); filter: saturate(1.08) contrast(1.02); }

.portfolio-card-media > span {
  transition: transform .28s ease, background-color .28s ease, border-color .28s ease;
}

.portfolio-card-media:hover > span {
  transform: translateY(-2px);
  background: rgba(10,10,9,.92);
  border-color: rgba(199,168,107,.45);
}

.portfolio-card h3 { transition: color .25s ease, transform .25s ease; }
.portfolio-card:hover h3 { color: #fff; transform: translateX(3px); }

/* Offer */
.portfolio-offer-box {
  position: relative;
  overflow: hidden;
  transition: border-color .3s ease, transform .3s cubic-bezier(.22,.8,.22,1), box-shadow .3s ease;
}

.portfolio-offer-box::before {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  right: -110px;
  top: -110px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(199,168,107,.16), transparent 68%);
  pointer-events: none;
}

.portfolio-offer-box:hover {
  transform: translateY(-4px);
  border-color: rgba(199,168,107,.34);
  box-shadow: 0 24px 70px rgba(0,0,0,.18);
}

.portfolio-offer-box li {
  position: relative;
  padding-left: 0;
  transition: padding-left .25s ease, color .25s ease;
}

.portfolio-offer-box li::before {
  content: "→";
  position: absolute;
  left: 0;
  opacity: 0;
  color: var(--pf-accent);
  transform: translateX(-8px);
  transition: opacity .25s ease, transform .25s ease;
}

.portfolio-offer-box li:hover { padding-left: 22px; color: var(--pf-text); }
.portfolio-offer-box li:hover::before { opacity: 1; transform: translateX(0); }

.portfolio-sector {
  position: relative;
  overflow: hidden;
  transition: background-color .25s ease, color .25s ease, padding .25s ease;
}

.portfolio-sector::after {
  content: "↗";
  position: absolute;
  right: 18px;
  top: 18px;
  color: var(--pf-accent);
  opacity: 0;
  transform: translate(-5px,5px);
  transition: opacity .25s ease, transform .25s ease;
}

.portfolio-sector:hover {
  background: var(--pf-panel);
  color: var(--pf-text);
  padding-left: 28px;
}

.portfolio-sector:hover::after { opacity: 1; transform: translate(0,0); }

/* About */
.portfolio-portrait-wrap {
  position: relative;
  box-shadow: 0 22px 70px rgba(0,0,0,.18);
  transition: transform .4s cubic-bezier(.22,.8,.22,1), border-color .3s ease, box-shadow .35s ease;
}

.portfolio-portrait-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 55%, rgba(10,10,9,.18));
}

.portfolio-portrait {
  transition: transform .7s cubic-bezier(.2,.75,.2,1), filter .5s ease;
}

.portfolio-portrait-wrap:hover {
  transform: translateY(-4px) rotate(-.25deg);
  border-color: rgba(199,168,107,.3);
  box-shadow: 0 30px 90px rgba(0,0,0,.26);
}

.portfolio-portrait-wrap:hover .portfolio-portrait {
  transform: scale(1.025);
  filter: saturate(.96) contrast(1.03);
}

/* Contact */
.portfolio-cta {
  position: relative;
  overflow: hidden;
}

.portfolio-cta::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -360px;
  width: 720px;
  height: 720px;
  transform: translateX(-50%);
  border-radius: 50%;
  border: 1px solid rgba(199,168,107,.08);
  box-shadow: 0 0 0 90px rgba(199,168,107,.012), 0 0 0 180px rgba(199,168,107,.008);
  pointer-events: none;
}

.portfolio-contact-details a {
  position: relative;
  transition: color .25s ease, background-color .25s ease, padding-left .25s ease;
}

.portfolio-contact-details a::after {
  content: "↗";
  position: absolute;
  right: 18px;
  opacity: 0;
  color: var(--pf-accent);
  transform: translate(-5px,5px);
  transition: opacity .25s ease, transform .25s ease;
}

.portfolio-contact-details a:hover { padding-left: 22px; }
.portfolio-contact-details a:hover::after { opacity: 1; transform: translate(0,0); }

/* Progressive scroll reveal in browsers that support scroll-driven view timelines. */
@supports (animation-timeline: view()) {
  .portfolio-section-head,
  .portfolio-video,
  .portfolio-services,
  .portfolio-work,
  .portfolio-offer,
  .portfolio-sectors,
  .portfolio-about-grid,
  .portfolio-contact-details {
    animation: portfolio-reveal linear both;
    animation-timeline: view();
    animation-range: entry 8% cover 28%;
  }
}

@keyframes portfolio-title-in {
  from { opacity: 0; transform: translateY(32px) rotateX(-16deg); filter: blur(5px); }
  to { opacity: 1; transform: translateY(0) rotateX(0); filter: blur(0); }
}

@keyframes portfolio-fade-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes portfolio-reveal {
  from { opacity: .15; transform: translateY(34px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes portfolio-pulse {
  0% { box-shadow: 0 0 0 0 rgba(158,207,154,.4); }
  70%, 100% { box-shadow: 0 0 0 8px rgba(158,207,154,0); }
}

@keyframes portfolio-orbit {
  from { transform: translate3d(0,0,0) rotate(0deg); }
  to { transform: translate3d(-24px,18px,0) rotate(8deg); }
}

@keyframes portfolio-nudge {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}

@media (max-width: 860px) {
  .portfolio-hero::before { right: -38vw; top: -10vw; width: 92vw; }
  .portfolio-card:hover,
  .portfolio-service:hover,
  .portfolio-offer-box:hover,
  .portfolio-portrait-wrap:hover { transform: none; }
  .portfolio-scroll-cue { margin-top: 34px; }
}

@media (max-width: 560px) {
  .portfolio-site::after { opacity: .02; }
  .portfolio-meta { padding-left: 14px; }
  .portfolio-scroll-cue { display: none; }
  .portfolio-service::after,
  .portfolio-sector::after { display: none; }
  .portfolio-sector:hover { padding-left: 22px; }
  .portfolio-card:hover .portfolio-card-media img { transform: scale(1.02); }
}

@media (prefers-reduced-motion: reduce) {
  .portfolio-site *,
  .portfolio-site *::before,
  .portfolio-site *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .001ms !important;
  }

  .portfolio-title-line,
  .portfolio-hero-grid,
  .portfolio-section-head,
  .portfolio-video,
  .portfolio-services,
  .portfolio-work,
  .portfolio-offer,
  .portfolio-sectors,
  .portfolio-about-grid,
  .portfolio-contact-details {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* V13: conversion-first motion polish. Keeps movement subtle and cheap to render. */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 86px;
}

.portfolio-nav::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  z-index: 120;
  pointer-events: none;
  background: linear-gradient(90deg, #8e7447, #e0c78f 58%, #f3ead6);
  transform: scaleX(0);
  transform-origin: left center;
  opacity: .9;
}

.portfolio-hero-copyblock,
.portfolio-hero-visual,
.portfolio-hero-meta-row {
  animation: portfolio-v13-enter .82s cubic-bezier(.16,1,.3,1) both;
}

.portfolio-hero-visual { animation-delay: .16s; }
.portfolio-hero-meta-row { animation-delay: .28s; }

.portfolio-hero-portrait-card,
.portfolio-hero-mini-frame {
  transition:
    transform .55s cubic-bezier(.16,1,.3,1),
    box-shadow .45s ease,
    border-color .35s ease;
  will-change: transform;
}

.portfolio-video-poster {
  position: relative;
  overflow: hidden;
}

.portfolio-video-poster::after {
  content: "";
  position: absolute;
  inset: -30%;
  pointer-events: none;
  background: linear-gradient(115deg, transparent 38%, rgba(255,255,255,.12) 49%, transparent 60%);
  transform: translateX(-90%) rotate(7deg);
  transition: transform .85s cubic-bezier(.16,1,.3,1);
}

.portfolio-video-poster:hover::after {
  transform: translateX(90%) rotate(7deg);
}

.portfolio-video-play {
  transition:
    transform .3s cubic-bezier(.16,1,.3,1),
    box-shadow .3s ease,
    background-color .3s ease;
}

.portfolio-video-poster:hover .portfolio-video-play {
  transform: scale(1.08);
  box-shadow: 0 14px 38px rgba(0,0,0,.3);
}

.portfolio-buyer-card,
.portfolio-instagram-frame,
.portfolio-studio-teaser,
.portfolio-contact-details a {
  transform: translateZ(0);
}

@media (hover: hover) and (pointer: fine) {
  .portfolio-hero-portrait-card:hover {
    transform: translateY(-7px) rotate(-.4deg);
    box-shadow: 0 30px 90px rgba(0,0,0,.28);
  }

  .portfolio-hero-mini-frame:hover {
    transform: translateY(-4px) rotate(1deg);
  }

  .portfolio-buyer-card {
    transition:
      transform .32s cubic-bezier(.16,1,.3,1),
      border-color .3s ease,
      background-color .3s ease,
      box-shadow .32s ease;
  }

  .portfolio-buyer-card:hover {
    transform: translateY(-5px);
    border-color: rgba(199,168,107,.34);
    box-shadow: 0 24px 70px rgba(0,0,0,.2);
  }

  .portfolio-instagram-frame {
    transition: transform .38s cubic-bezier(.16,1,.3,1), filter .35s ease;
  }

  .portfolio-instagram-frame:hover {
    transform: translateY(-4px);
    filter: saturate(1.04) contrast(1.015);
  }
}

@supports (animation-timeline: scroll()) {
  .portfolio-nav::before {
    animation: portfolio-v13-progress linear both;
    animation-timeline: scroll(root);
  }
}

@supports (animation-timeline: view()) {
  .portfolio-buyer-card,
  .portfolio-card,
  .portfolio-service,
  .portfolio-sector,
  .portfolio-instagram-frame,
  .portfolio-studio-teaser {
    animation: portfolio-v13-card-reveal linear both;
    animation-timeline: view();
    animation-range: entry 4% cover 24%;
  }

  .portfolio-buyer-card:nth-child(2),
  .portfolio-card:nth-child(2),
  .portfolio-service:nth-child(2) {
    animation-range: entry 7% cover 27%;
  }

  .portfolio-buyer-card:nth-child(3),
  .portfolio-card:nth-child(3),
  .portfolio-service:nth-child(3) {
    animation-range: entry 10% cover 30%;
  }
}

@keyframes portfolio-v13-enter {
  from {
    opacity: 0;
    transform: translateY(22px) scale(.992);
    filter: blur(5px);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
  }
}

@keyframes portfolio-v13-progress {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

@keyframes portfolio-v13-card-reveal {
  from {
    opacity: .18;
    transform: translateY(30px) scale(.985);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (max-width: 860px) {
  .portfolio-hero-copyblock,
  .portfolio-hero-visual,
  .portfolio-hero-meta-row {
    animation-duration: .62s;
  }

  .portfolio-buyer-card:active,
  .portfolio-card:active,
  .portfolio-btn:active,
  .portfolio-video-poster:active {
    transform: scale(.985);
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .portfolio-nav::before {
    display: none;
  }

  .portfolio-hero-copyblock,
  .portfolio-hero-visual,
  .portfolio-hero-meta-row,
  .portfolio-buyer-card,
  .portfolio-card,
  .portfolio-service,
  .portfolio-sector,
  .portfolio-instagram-frame,
  .portfolio-studio-teaser {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
  }
}