/* ── Reset ────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Theme Variables ──────────────────────────────────── */
:root {
  /* Light mode (default) */
  --bg:           #ffffff;
  --bg-alt:       #f5f5f5;
  --bg-dark:      #111111;
  --bg-dark2:     #1a1a1a;
  --bg-darkest:   #080808;

  --text:         #1a1a1a;
  --text-mid:     #555555;
  --text-muted:   #888888;
  --text-inv:     #ffffff;

  --border:       rgba(0,0,0,0.10);
  --border-inv:   rgba(255,255,255,0.08);

  --svc-bg:       #ffffff;
  --svc-grid:     #dddddd;
  --svc-hover:    #1a1a1a;
  --svc-hover-t:  #ffffff;

  --proc-bg:      #f5f5f5;
  --proc-line:    #cccccc;
  --proc-num-bg:  #f5f5f5;
  --proc-num-c:   #bbbbbb;
  --proc-num-b:   #cccccc;

  --divider:      #1a1a1a;

  --font-h: 'Montserrat', sans-serif;
  --font-b: 'Open Sans', sans-serif;
  --ease:     cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);

  /* transition for theme switch */
  --theme-t: background 0.35s var(--ease), color 0.35s var(--ease), border-color 0.35s var(--ease);
}

[data-theme="dark"] {
  --bg:          #111111;
  --bg-alt:      #181818;
  --bg-dark:     #111111;
  --bg-dark2:    #1a1a1a;
  --bg-darkest:  #080808;

  --text:        #f0f0f0;
  --text-mid:    #aaaaaa;
  --text-muted:  #666666;
  --text-inv:    #111111;

  --border:      rgba(255,255,255,0.08);
  --border-inv:  rgba(255,255,255,0.08);

  --svc-bg:      #1a1a1a;
  --svc-grid:    #2a2a2a;
  --svc-hover:   #ffffff;
  --svc-hover-t: #111111;

  --proc-bg:     #181818;
  --proc-line:   #333333;
  --proc-num-bg: #181818;
  --proc-num-c:  #555555;
  --proc-num-b:  #333333;

  --divider:     #ffffff;
}

/* ── Base ─────────────────────────────────────────────── */
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-b);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: var(--theme-t);
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
strong { font-weight: 600; }

/* ── Container ────────────────────────────────────────── */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ── Theme Toggle Button ──────────────────────────────── */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 50%;
  cursor: pointer;
  color: rgba(255,255,255,0.8);
  font-size: 15px;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.2s var(--ease), color 0.25s var(--ease);
  flex-shrink: 0;
  overflow: hidden;
}
.theme-toggle:hover {
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.4);
  transform: scale(1.1) rotate(15deg);
}
.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  position: absolute;
  top: 50%; left: 50%;
  transition: opacity 0.3s var(--ease), transform 0.35s var(--ease);
}
.theme-toggle .icon-sun {
  transform: translate(-50%, -50%) rotate(-90deg) scale(0.4);
  opacity: 0;
}
.theme-toggle .icon-moon {
  transform: translate(-50%, -50%) rotate(0deg) scale(1);
  opacity: 1;
}
[data-theme="dark"] .theme-toggle .icon-sun {
  transform: translate(-50%, -50%) rotate(0deg) scale(1);
  opacity: 1;
}
[data-theme="dark"] .theme-toggle .icon-moon {
  transform: translate(-50%, -50%) rotate(90deg) scale(0.4);
  opacity: 0;
}

/* ── Buttons ──────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-h);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 15px 38px;
  border: 1.5px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: #ffffff;
  transform: translateX(-101%);
  transition: transform 0.3s var(--ease);
  z-index: -1;
}
.btn:hover::after { transform: translateX(0); }
.btn--white { border-color: #ffffff; color: #ffffff; }
.btn--white:hover { color: #111111; }
.btn--outline {
  border-color: rgba(255,255,255,0.4);
  color: rgba(255,255,255,0.75);
}
.btn--outline::after { background: rgba(255,255,255,0.1); }
.btn--outline:hover { color: #ffffff; border-color: rgba(255,255,255,0.7); }
.btn--full { width: 100%; }

/* ── Navigation ───────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 300;
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.nav.scrolled {
  background: rgba(8,8,8,0.96);
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.nav__inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 32px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav__logo img { height: 42px; width: auto; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav__links a {
  font-family: var(--font-h);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  transition: color 0.25s var(--ease);
  position: relative;
  padding-bottom: 2px;
}
.nav__links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%; height: 1px;
  background: #ffffff;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav__links a:hover,
.nav__links a.active { color: #ffffff; }
.nav__links a:hover::after,
.nav__links a.active::after { transform: scaleX(1); }

.nav__right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav__burger span {
  display: block;
  width: 24px; height: 2px;
  background: #ffffff;
  border-radius: 1px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav__burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Light-mode nav ───────────────────────────────────────── */
html:not([data-theme="dark"]) .nav.scrolled {
  background: rgba(255,255,255,0.97);
  box-shadow: 0 1px 8px rgba(0,0,0,0.08);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
html:not([data-theme="dark"]) .nav.scrolled .nav__links a {
  color: rgba(0,0,0,0.5);
}
html:not([data-theme="dark"]) .nav.scrolled .nav__links a:hover,
html:not([data-theme="dark"]) .nav.scrolled .nav__links a.active { color: #111111; }
html:not([data-theme="dark"]) .nav.scrolled .nav__links a::after { background: #111111; }
html:not([data-theme="dark"]) .nav.scrolled .theme-toggle {
  background: rgba(0,0,0,0.06);
  border-color: rgba(0,0,0,0.15);
  color: rgba(0,0,0,0.65);
}
html:not([data-theme="dark"]) .nav.scrolled .theme-toggle:hover {
  background: rgba(0,0,0,0.12);
  border-color: rgba(0,0,0,0.3);
}
html:not([data-theme="dark"]) .nav.scrolled .nav__burger span { background: #111111; }

@media (max-width: 768px) {
  html:not([data-theme="dark"]) .nav__links.open {
    background: rgba(255,255,255,0.98);
    border-top-color: rgba(0,0,0,0.06);
  }
  html:not([data-theme="dark"]) .nav__links.open a { color: rgba(0,0,0,0.55); }
  html:not([data-theme="dark"]) .nav__links.open a:hover,
  html:not([data-theme="dark"]) .nav__links.open a.active { color: #111111; }
  html:not([data-theme="dark"]) .nav__links.open a::after { background: #111111; }
}

/* ── No transition on initial load ───────────────────────── */
.no-transition,
.no-transition * { transition: none !important; }

/* ── Scroll Animations ────────────────────────────────── */
[data-animate="fade-up"] {
  opacity: 0; transform: translateY(40px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
[data-animate="fade-right"] {
  opacity: 0; transform: translateX(-50px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
[data-animate="fade-left"] {
  opacity: 0; transform: translateX(50px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
[data-animate="scale-in"] {
  opacity: 0; transform: scale(0.88);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
[data-animate].animated {
  opacity: 1; transform: translate(0) scale(1);
}

/* ── Hero Slider ──────────────────────────────────────── */
.hero { height: 100svh; min-height: 600px; position: relative; overflow: hidden; }
.slider { width: 100%; height: 100%; position: relative; }
.slider__track {
  display: flex; width: 100%; height: 100%;
  transition: transform 0.9s cubic-bezier(0.77,0,0.175,1);
}
.slider__slide {
  flex: 0 0 100%; height: 100%;
  background-size: cover; background-position: center;
  transition: transform 8s linear;
}
.slider__slide.active { transform: scale(1.05); }
.slider__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.2) 0%, rgba(0,0,0,0.5) 50%, rgba(0,0,0,0.75) 100%);
  display: flex; align-items: center; justify-content: center;
}
.slider__content { text-align: center; padding: 0 24px; max-width: 860px; }

.slider__tag {
  display: inline-block;
  font-family: var(--font-h); font-size: 11px; font-weight: 600;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: rgba(255,255,255,0.75);
  border: 1px solid rgba(255,255,255,0.35);
  padding: 6px 20px; margin-bottom: 28px;
  opacity: 0; transform: translateY(20px);
  animation: heroFade 0.8s var(--ease-out) 0.3s forwards;
}
.slider__headline {
  font-family: var(--font-h); font-size: clamp(36px,6vw,76px);
  font-weight: 900; letter-spacing: -0.02em; line-height: 1.1;
  color: #ffffff;
  margin-bottom: 22px; text-shadow: 0 2px 30px rgba(0,0,0,0.4);
  opacity: 0; transform: translateY(24px);
  animation: heroFade 0.9s var(--ease-out) 0.5s forwards;
}
.slider__headline span { font-style: italic; }
.slider__sub {
  font-size: 16px; color: rgba(255,255,255,0.72);
  max-width: 520px; margin: 0 auto 36px; line-height: 1.7;
  opacity: 0; transform: translateY(20px);
  animation: heroFade 0.9s var(--ease-out) 0.7s forwards;
}
.slider__cta {
  display: flex; gap: 14px; justify-content: center; flex-wrap: wrap;
  opacity: 0; transform: translateY(20px);
  animation: heroFade 0.9s var(--ease-out) 0.9s forwards;
}
@keyframes heroFade { to { opacity: 1; transform: translateY(0); } }

.slider__arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(0,0,0,0.25); border: 1px solid rgba(255,255,255,0.18);
  color: #ffffff; font-size: 28px; width: 50px; height: 50px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; z-index: 10; line-height: 1;
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
}
.slider__arrow:hover { background: rgba(255,255,255,0.2); border-color: #fff; transform: translateY(-50%) scale(1.08); }
.slider__arrow--prev { left: 24px; }
.slider__arrow--next { right: 24px; }

.slider__dots {
  position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 8px; z-index: 10;
}
.slider__dot {
  width: 28px; height: 3px; border-radius: 2px;
  background: rgba(255,255,255,0.3); border: none; cursor: pointer; padding: 0;
  transition: background 0.3s var(--ease), width 0.3s var(--ease);
}
.slider__dot.active { background: #ffffff; width: 48px; }

.hero__scroll-hint {
  position: absolute; bottom: 28px; right: 32px;
  display: flex; flex-direction: column; align-items: center; gap: 8px; z-index: 10;
  opacity: 0; animation: heroFade 1s var(--ease-out) 1.4s forwards;
}
.hero__scroll-hint span {
  font-family: var(--font-h); font-size: 10px; font-weight: 600;
  letter-spacing: 0.2em; color: rgba(255,255,255,0.45); text-transform: uppercase;
}
.hero__scroll-line {
  width: 1px; height: 50px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
  animation: scrollLine 2s var(--ease-out) infinite;
}
@keyframes scrollLine {
  0%  { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100%{ transform: scaleY(0); transform-origin: bottom; }
}

/* ── Sections ─────────────────────────────────────────── */
.section { padding: 100px 0; }

/* Content sections use theme vars */
.section--content { background: var(--bg); }
.section--alt     { background: var(--bg-alt); }

/* Always dark (portfolio, kontakt, footer) */
.section--dark    { background: var(--bg-dark); }
.section--black   { background: var(--bg-darkest); }

/* Content section: dark text on light, light text on dark */
.section--content .section__label,
.section--alt     .section__label { color: var(--text-muted); }
.section--content .section__title,
.section--alt     .section__title { color: var(--text); }
.section--content .section__divider,
.section--alt     .section__divider { background: var(--divider); }
.section--content .section__intro,
.section--alt     .section__intro  { color: var(--text-mid); }

/* Dark sections: always white text */
.section--dark .section__label,
.section--black .section__label { color: rgba(255,255,255,0.45); }
.section--dark .section__title,
.section--black .section__title { color: #ffffff; }
.section--dark .section__divider,
.section--black .section__divider { background: rgba(255,255,255,0.4); }
.section--dark .section__intro,
.section--black .section__intro { color: rgba(255,255,255,0.5); }

.section__header { text-align: center; margin-bottom: 64px; }
.section__label {
  display: inline-block; font-family: var(--font-h);
  font-size: 11px; font-weight: 700; letter-spacing: 0.2em;
  text-transform: uppercase; margin-bottom: 12px;
}
.section__title {
  font-family: var(--font-h); font-size: clamp(22px,3vw,34px);
  font-weight: 900; letter-spacing: 0.12em; margin-bottom: 16px;
}
.section__divider {
  width: 48px; height: 3px; margin: 0 auto;
  transition: width 0.6s var(--ease-out);
}
.section__intro { margin-top: 20px; font-size: 16px; line-height: 1.8; }

/* ── Services ─────────────────────────────────────────── */
.services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--svc-grid);
  border: 1px solid var(--svc-grid);
}
.service {
  padding: 36px 28px 32px;
  background: var(--svc-bg);
  position: relative; overflow: hidden;
  transition: background 0.25s var(--ease);
}
.service::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 3px; height: 0; background: var(--svc-hover);
  transition: height 0.35s var(--ease-out);
}
.service:hover { background: var(--svc-hover); }
.service:hover::before { height: 100%; }

.service__icon {
  font-size: 22px; color: var(--text-muted);
  margin-bottom: 18px; display: block;
  transition: color 0.25s var(--ease);
}
.service:hover .service__icon { color: var(--svc-hover-t); }

.service__title {
  font-family: var(--font-h); font-size: 11px; font-weight: 800;
  letter-spacing: 0.1em; color: var(--text); margin-bottom: 10px;
  transition: color 0.25s var(--ease);
}
.service:hover .service__title { color: var(--svc-hover-t); }

.service__quote {
  font-style: italic; font-size: 13px; color: var(--text-mid);
  margin-bottom: 12px; line-height: 1.55;
  transition: color 0.25s var(--ease);
}
.service:hover .service__quote { color: color-mix(in srgb, var(--svc-hover-t) 65%, transparent); }

.service__text {
  font-size: 13.5px; color: var(--text-mid); line-height: 1.75;
  transition: color 0.25s var(--ease);
}
.service:hover .service__text { color: color-mix(in srgb, var(--svc-hover-t) 80%, transparent); }
.service:hover .service__text strong { color: var(--svc-hover-t); }

/* ── Portfolio ────────────────────────────────────────── */
.portfolio-filter {
  display: flex; gap: 8px; justify-content: center;
  flex-wrap: wrap; margin-bottom: 36px;
}
.filter-btn {
  font-family: var(--font-h); font-size: 11px; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 8px 22px; background: transparent;
  border: 1px solid rgba(255,255,255,0.2); color: rgba(255,255,255,0.5);
  cursor: pointer; transition: all 0.25s var(--ease);
}
.filter-btn:hover { border-color: #fff; color: #fff; }
.filter-btn.active { background: #fff; border-color: #fff; color: #111; }

.portfolio { display: grid; grid-template-columns: repeat(4,1fr); gap: 2px; }
.portfolio__item { position: relative; overflow: hidden; aspect-ratio: 4/3; cursor: pointer; }
.portfolio__item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); }
.portfolio__item:hover img { transform: scale(1.1); }
.portfolio__overlay {
  position: absolute; inset: 0; background: rgba(0,0,0,0);
  display: flex; align-items: flex-end; padding: 20px;
  transition: background 0.35s var(--ease);
}
.portfolio__item:hover .portfolio__overlay { background: rgba(0,0,0,0.65); }
.portfolio__info {
  transform: translateY(10px); opacity: 0;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}
.portfolio__item:hover .portfolio__info { opacity: 1; transform: translateY(0); }
.portfolio__cat {
  display: block; font-family: var(--font-h); font-size: 10px;
  font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
  color: rgba(255,255,255,0.65); margin-bottom: 4px;
}
.portfolio__name { font-family: var(--font-h); font-size: 15px; font-weight: 800; color: #fff; }
.portfolio__item.hidden { display: none; }
.portfolio__item.filtering { animation: filterPop 0.4s var(--ease-out) both; }
@keyframes filterPop { from { opacity:0; transform:scale(0.9); } to { opacity:1; transform:scale(1); } }

/* ── Process ──────────────────────────────────────────── */
.process {
  display: grid; grid-template-columns: repeat(5,1fr);
  gap: 0; position: relative;
}
.process::before {
  content: ''; position: absolute;
  top: 40px; left: 10%; right: 10%; height: 1px;
  background: linear-gradient(to right, transparent, var(--proc-line) 20%, var(--proc-line) 80%, transparent);
}
.process__item {
  text-align: center; padding: 40px 16px 32px; position: relative;
  transition: background 0.3s var(--ease);
}
.process__item:hover { background: var(--border); }

.process__num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 60px; height: 60px; border-radius: 50%;
  border: 2px solid var(--proc-num-b); font-family: var(--font-h);
  font-size: 16px; font-weight: 800; color: var(--proc-num-c);
  margin-bottom: 20px; position: relative; z-index: 1;
  background: var(--proc-num-bg);
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease), background 0.3s var(--ease);
}
.process__item:hover .process__num { border-color: var(--text); color: var(--bg); background: var(--text); }

.process__title {
  font-family: var(--font-h); font-size: 11px; font-weight: 800;
  letter-spacing: 0.14em; color: var(--text); margin-bottom: 6px;
}
.process__sub { font-size: 11px; font-style: italic; color: var(--text-muted); margin-bottom: 12px; }
.process__text { font-size: 13px; color: var(--text-mid); line-height: 1.65; }

/* ── Contact (dark section) ───────────────────────────── */
.contact--centered {
  display: flex; flex-direction: column; align-items: center;
  text-align: center; gap: 28px; max-width: 520px; margin: 0 auto;
}
.contact--centered .contact__row { justify-content: center; }
.contact__logo { height: 48px; width: auto; }
.contact__details { display: flex; flex-direction: column; gap: 16px; }
.contact__row {
  display: flex; gap: 14px; align-items: flex-start;
  font-size: 14px; color: rgba(255,255,255,0.55);
}
.contact__row strong { color: #ffffff; display: block; margin-bottom: 2px; }
.contact__icon { font-size: 16px; margin-top: 2px; flex-shrink: 0; }
.contact__row a { color: rgba(255,255,255,0.55); transition: color 0.25s var(--ease); }
.contact__row a:hover { color: #ffffff; }

.social { display: flex; gap: 10px; }
.social__icon {
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  border: 1px solid rgba(255,255,255,0.15); color: rgba(255,255,255,0.4);
  transition: all 0.25s var(--ease);
}
.social__icon svg { width: 16px; height: 16px; }
.social__icon:hover { border-color: #fff; color: #fff; }

/* ── Footer ───────────────────────────────────────────── */
.footer {
  background: var(--bg-darkest);
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 32px 0;
}
.footer__inner {
  display: flex; align-items: center;
  justify-content: space-between; flex-wrap: wrap; gap: 16px;
}
.footer__logo img { height: 32px; opacity: 0.6; }
.footer__copy {
  font-family: var(--font-h); font-size: 10px; font-weight: 600;
  letter-spacing: 0.1em; color: rgba(255,255,255,0.2);
}
.footer__nav { display: flex; gap: 24px; }
.footer__nav a {
  font-family: var(--font-h); font-size: 10px; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: rgba(255,255,255,0.3); transition: color 0.25s var(--ease);
}
.footer__nav a:hover { color: #ffffff; }

/* ── Back to top ──────────────────────────────────────── */
.back-to-top {
  position: fixed; bottom: 28px; right: 28px;
  width: 44px; height: 44px;
  background: var(--bg-dark2); border: 1px solid var(--border-inv);
  color: rgba(255,255,255,0.5); font-size: 18px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  z-index: 200; opacity: 0; pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease),
              background 0.25s var(--ease), color 0.25s var(--ease);
}
.back-to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top:hover { background: #ffffff; color: #111111; border-color: #ffffff; }

/* ── Inner Pages ──────────────────────────────────────── */
.page-wrap { padding-top: 72px; min-height: 80vh; background: var(--bg-dark); }
.page-content { max-width: 820px; margin: 0 auto; padding: 72px 32px; }
.page-content .back-link {
  display: inline-block; font-family: var(--font-h); font-size: 11px;
  font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: rgba(255,255,255,0.3); margin-bottom: 44px; transition: color 0.25s var(--ease);
}
.page-content .back-link:hover { color: #ffffff; }
.page-content h1 {
  font-family: var(--font-h); font-size: clamp(26px,3vw,36px);
  font-weight: 900; letter-spacing: 0.08em; margin-bottom: 14px; color: #ffffff;
}
.page-content .divider { width: 44px; height: 3px; background: rgba(255,255,255,0.25); margin-bottom: 44px; }
.page-content h2 {
  font-family: var(--font-h); font-size: 12px; font-weight: 800;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: rgba(255,255,255,0.4); margin: 36px 0 10px;
}
.page-content p { color: rgba(255,255,255,0.55); margin-bottom: 14px; font-size: 14.5px; line-height: 1.8; }
.page-content a { color: rgba(255,255,255,0.7); text-decoration: underline; transition: opacity 0.2s; }
.page-content a:hover { opacity: 0.8; }

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 1024px) {
  .services { grid-template-columns: repeat(2,1fr); }
  .process  { grid-template-columns: repeat(3,1fr); }
  .process::before { display: none; }
  .portfolio { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 768px) {
  .nav__links {
    display: none; position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; background: rgba(8,8,8,0.98);
    padding: 24px 32px 32px; gap: 22px;
    border-top: 1px solid rgba(255,255,255,0.07);
  }
  .nav__links.open { display: flex; }
  .nav__burger { display: flex; }
  .slider__arrow { display: none; }
  .hero__scroll-hint { display: none; }
  .footer__inner { flex-direction: column; text-align: center; }
}
@media (max-width: 600px) {
  .services  { grid-template-columns: 1fr; }
  .process   { grid-template-columns: repeat(2,1fr); }
  .portfolio { grid-template-columns: 1fr; }
  .container { padding: 0 20px; }
}
@media (max-width: 400px) {
  .process { grid-template-columns: 1fr; }
}