@import url('fonts.css');

/* =====================================================================
   c.tap — Mineralöl & Maschinenchemie
   Bespoke design system. Hand-authored.
   Palette concept: gunmetal neutrals with muted, metallic petroleum-film
   iridescence as the signature accent (oil on wet metal, not a rainbow).
   Type: Archivo (one industrial grotesk, variable weight + width). Self-hosted.
   Concept: "Ölfilm / Material" — oil-on-gunmetal, iridescent but muted.
   ===================================================================== */

/* ---- Tokens: dark is the authored default, light overrides below ---- */
:root {
  color-scheme: light dark;

  /* Oil-film constants (mode-independent). Muted, metallic petroleum hues —
     the real look of oil on wet metal, NOT a bright holographic rainbow. */
  --oil-1: #3f6f9e;   /* petrol blue   */
  --oil-2: #6a5f9c;   /* violet        */
  --oil-3: #9a5f86;   /* mauve-magenta */
  --oil-4: #b79154;   /* oil gold      */
  --oil-5: #4f8f84;   /* teal          */
  --steel: #4f8f84;   /* alias kept for legacy references */
  --oil-gradient: linear-gradient(112deg, var(--oil-1), var(--oil-2), var(--oil-3), var(--oil-4), var(--oil-5));
  --oil-deep: linear-gradient(112deg, #24445f, #383560, #543650, #6a5230, #244b45);

  /* Type — ONE industrial grotesk (Archivo, variable weight + width).
     No serif, no monospace, no second family. Self-hosted. */
  --font-display: "Archivo", system-ui, "Helvetica Neue", Arial, sans-serif;
  --font-body:    "Archivo", system-ui, "Helvetica Neue", Arial, sans-serif;
  --font-mono:    "Archivo", system-ui, "Helvetica Neue", Arial, sans-serif;

  /* Fluid scale (major-third-ish, hand-tuned) */
  --step--1: clamp(0.80rem, 0.77rem + 0.15vw, 0.88rem);
  --step-0:  clamp(1.00rem, 0.96rem + 0.22vw, 1.13rem);
  --step-1:  clamp(1.24rem, 1.15rem + 0.45vw, 1.55rem);
  --step-2:  clamp(1.55rem, 1.38rem + 0.85vw, 2.20rem);
  --step-3:  clamp(1.95rem, 1.62rem + 1.65vw, 3.20rem);
  --step-4:  clamp(2.45rem, 1.80rem + 3.25vw, 4.80rem);
  --step-5:  clamp(3.00rem, 1.85rem + 5.75vw, 7.20rem);

  /* Spacing rhythm */
  --gap: clamp(1rem, 0.8rem + 1vw, 1.6rem);
  --section-y: clamp(4.5rem, 3rem + 7vw, 10rem);
  --edge: clamp(1.2rem, 0.6rem + 3vw, 4.5rem);
  --maxw: 1320px;

  --radius: 2px;      /* machined edges, near-sharp */
  --radius-lg: 3px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

/* ---- DARK (default): gunmetal ---- */
:root {
  --bg:        #0d0f11;
  --bg-2:      #111417;
  --surface:   #16191d;
  --surface-2: #1c2025;
  --line:      rgba(219, 227, 232, 0.10);
  --line-strong: rgba(219, 227, 232, 0.20);
  --ink:       #e7ebee;
  --ink-soft:  #b6bec4;
  --muted:     #7c868d;
  --accent:    #82b3cb;   /* cool petrol — the interactive signal colour */
  --accent-2:  #a9d4e2;
  --grain-opacity: 0.055;
  --oil-sheen: linear-gradient(112deg, #8fb6d6, #a99fce, #cf9fbb, #e3c68e, #8fc9bd);
}

/* ---- LIGHT (system-driven): concrete / steel ---- */
@media (prefers-color-scheme: light) {
  :root {
    --bg:        #d5d8da;
    --bg-2:      #dce0e2;
    --surface:   #e7e9eb;
    --surface-2: #eff1f2;
    --line:      rgba(18, 24, 28, 0.14);
    --line-strong: rgba(18, 24, 28, 0.28);
    --ink:       #14181b;
    --ink-soft:  #333a3f;
    --muted:     #5a636a;
    --accent:    #2f6d88;
    --accent-2:  #3d84a1;
    --grain-opacity: 0.03;
    --oil-sheen: linear-gradient(112deg, #2f5f86, #574f80, #7a4f6b, #8a6a3e, #2f6f64);
  }
}

/* ---- Manual override via [data-theme] ---- */
:root[data-theme="light"] {
  --bg:#d5d8da; --bg-2:#dce0e2; --surface:#e7e9eb; --surface-2:#eff1f2;
  --line:rgba(18,24,28,0.14); --line-strong:rgba(18,24,28,0.28);
  --ink:#14181b; --ink-soft:#333a3f; --muted:#5a636a;
  --accent:#2f6d88; --accent-2:#3d84a1;
  --grain-opacity:0.03;
  --oil-sheen: linear-gradient(112deg, #2f5f86, #574f80, #7a4f6b, #8a6a3e, #2f6f64);
}
:root[data-theme="dark"] {
  --bg:#0d0f11; --bg-2:#111417; --surface:#16191d; --surface-2:#1c2025;
  --line:rgba(219,227,232,0.10); --line-strong:rgba(219,227,232,0.20);
  --ink:#e7ebee; --ink-soft:#b6bec4; --muted:#7c868d;
  --accent:#82b3cb; --accent-2:#a9d4e2;
  --grain-opacity:0.055;
  --oil-sheen: linear-gradient(112deg, #8fb6d6, #a99fce, #cf9fbb, #e3c68e, #8fc9bd);
}

/* ===================== Base ===================== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; background: var(--bg); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  background: transparent;   /* the fixed .oil-field shows through between sections */
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.62;
  font-weight: 400;
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  position: relative;
}

/* Film grain overlay — subtle, keeps flats from feeling "digital-flat" */
body::after {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none; z-index: 9999;
  opacity: var(--grain-opacity);
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; }

::selection { background: var(--accent); color: var(--bg); }

:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ===================== Layout helpers ===================== */
.wrap { width: min(100% - (var(--edge) * 2), var(--maxw)); margin-inline: auto; }
.section { padding-block: var(--section-y); position: relative; }
.eyebrow {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--step--1);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex; align-items: center; gap: 0.7em;
}
.eyebrow::before {
  content: ""; width: 1.8em; height: 1px; background: var(--accent); opacity: 0.7;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-optical-sizing: auto;
}
/* nameplate display: heavy + slightly condensed, like industrial signage */
h1, h2.display, .sec-head h2 {
  font-stretch: 92%;
  font-weight: 800;
  letter-spacing: -0.035em;
  text-transform: uppercase;
}
h2.display { font-size: var(--step-4); }
h3 { font-size: var(--step-2); letter-spacing: -0.02em; }
p { text-wrap: pretty; }
.lead { font-size: var(--step-1); color: var(--ink-soft); line-height: 1.5; font-weight: 450; }
.measure { max-width: 62ch; }

/* ===================== Buttons ===================== */
.btn {
  --pad-y: 0.85em; --pad-x: 1.5em;
  display: inline-flex; align-items: center; gap: 0.7em;
  padding: var(--pad-y) var(--pad-x);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step--1);
  letter-spacing: 0.1em; text-transform: uppercase;
  border-radius: var(--radius);
  border: 1px solid transparent;
  position: relative; overflow: hidden;
  transition: transform 0.5s var(--ease), filter 0.4s var(--ease), color 0.4s var(--ease), border-color 0.4s var(--ease);
  will-change: transform;
}
.btn .arw { transition: transform 0.5s var(--ease); }
.btn:hover .arw { transform: translateX(4px); }
.btn-primary { background: var(--oil-deep); color: #eef3f4; box-shadow: inset 0 1px 0 rgba(255,255,255,0.14); }
.btn-primary:hover { filter: brightness(1.14) saturate(1.1); transform: translateY(-2px); }
.btn-ghost { border-color: var(--line-strong); color: var(--ink); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* ===================== Header ===================== */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  padding-block: 1.1rem;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease), padding 0.4s var(--ease), backdrop-filter 0.4s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px) saturate(1.2);
  border-bottom-color: var(--line);
  padding-block: 0.7rem;
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.nav-links { display: flex; align-items: center; gap: clamp(1rem, 2.2vw, 2.3rem); }
.nav-links a {
  font-size: var(--step--1); letter-spacing: 0.02em; color: var(--ink-soft);
  position: relative; padding-block: 0.4rem;
  transition: color 0.3s var(--ease);
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--accent); transition: width 0.4s var(--ease);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { width: 100%; }

.nav-tools { display: flex; align-items: center; gap: 1rem; }
.theme-toggle {
  width: 40px; height: 40px; display: grid; place-items: center;
  border: 1px solid var(--line-strong); border-radius: 50%;
  transition: border-color 0.3s var(--ease), transform 0.4s var(--ease), color 0.3s;
  color: var(--ink-soft);
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); transform: rotate(18deg); }
.theme-toggle .sun { display: none; }
:root[data-theme="dark"] .theme-toggle .sun,
:root[data-theme="light"] .theme-toggle .moon { display: block; }
:root[data-theme="dark"] .theme-toggle .moon,
:root[data-theme="light"] .theme-toggle .sun { display: none; }

.burger { display: none; flex-direction: column; gap: 5px; width: 40px; height: 40px; align-items: center; justify-content: center; }
.burger span { width: 22px; height: 1.5px; background: var(--ink); transition: transform 0.35s var(--ease), opacity 0.3s; }
.burger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ===================== Hero ===================== */
.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: flex-end;
  padding-top: 8rem; padding-bottom: var(--section-y);
  overflow: hidden;
}
/* oil slick — iridescent sheen pooled upper-right over gunmetal */
.hero::before {
  content: ""; position: absolute; inset: -25%; z-index: 0;
  background:
    radial-gradient(38% 52% at 74% 22%, color-mix(in srgb, var(--oil-1) 62%, transparent), transparent 68%),
    radial-gradient(34% 44% at 62% 34%, color-mix(in srgb, var(--oil-2) 55%, transparent), transparent 70%),
    radial-gradient(42% 48% at 86% 40%, color-mix(in srgb, var(--oil-4) 48%, transparent), transparent 72%),
    radial-gradient(40% 50% at 68% 14%, color-mix(in srgb, var(--oil-5) 42%, transparent), transparent 70%),
    radial-gradient(30% 40% at 90% 60%, color-mix(in srgb, var(--oil-3) 40%, transparent), transparent 72%);
  filter: blur(46px) saturate(1.02);
  opacity: 0.55;
  animation: oildrift 30s ease-in-out infinite alternate;
}
/* brushed-metal striation + vignette to keep the headline legible */
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    repeating-linear-gradient(93deg, transparent 0 2px, color-mix(in srgb, var(--ink) 3%, transparent) 2px 3px),
    radial-gradient(135% 105% at 60% 12%, transparent 42%, var(--bg) 100%);
}
@keyframes oildrift {
  0%   { transform: translate3d(0,0,0) scale(1); }
  100% { transform: translate3d(-5%, 3%, 0) scale(1.1) rotate(2deg); }
}
:root[data-theme="light"] .hero::before { opacity: 0.42; }
@media (prefers-color-scheme: light) { :root:not([data-theme]) .hero::before { opacity: 0.42; } }
.hero .wrap { position: relative; z-index: 2; width: min(100% - (var(--edge)*2), var(--maxw)); }
.hero-grid { display: grid; grid-template-columns: 1fr; gap: clamp(2rem, 4vw, 4rem); }
.hero h1 {
  font-size: var(--step-5);
  font-weight: 800; font-stretch: 88%; letter-spacing: -0.04em; line-height: 0.9;
  margin-top: 1.4rem;
}
.hero h1 .drip {
  background: var(--oil-sheen); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.hero-meta {
  display: flex; flex-wrap: wrap; gap: 1rem 2.5rem; align-items: center;
  margin-top: 2.4rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }
.hero-side {
  border-top: 1px solid var(--line);
  padding-top: 1.4rem;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap);
  max-width: 640px;
}
.stat .num { font-family: var(--font-display); font-size: var(--step-3); font-weight: 700; color: var(--ink); letter-spacing: -0.02em; }
.stat .num .unit { color: var(--accent); }
.stat .lab { font-family: var(--font-mono); font-size: var(--step--1); color: var(--muted); text-transform: uppercase; letter-spacing: 0.14em; margin-top: 0.3rem; }

/* hero guarantee triad (replaces fabricated stats) */
.hero-guarantees { list-style: none; max-width: 640px; margin: 0; padding: 0; }
.hero-guarantees li {
  display: grid; grid-template-columns: minmax(9.5ch, auto) 1fr; gap: 0.4rem 1.6rem;
  align-items: baseline; padding-block: 1.05rem; border-top: 1px solid var(--line);
}
.hero-guarantees li:last-child { border-bottom: 1px solid var(--line); }
.hero-guarantees .g-k { font-family: var(--font-display); font-weight: 700; font-size: var(--step-2); letter-spacing: -0.02em; color: var(--ink); }
.hero-guarantees .g-k .dot { color: var(--accent); }
.hero-guarantees .g-d { font-size: var(--step--1); color: var(--muted); line-height: 1.5; }
@media (max-width: 520px) { .hero-guarantees li { grid-template-columns: 1fr; gap: 0.2rem; } }

/* quiet upper-right technical annotation in hero */
.hero-spec {
  position: absolute; top: clamp(6.5rem, 12vh, 10rem); right: 0;
  display: grid; gap: 0.35rem; text-align: right;
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.12em;
  color: var(--muted); padding-right: 1.4rem; border-right: 1px solid var(--line);
}
.hero-spec .hs-k { color: var(--accent); text-transform: uppercase; letter-spacing: 0.2em; margin-bottom: 0.2rem; }
@media (max-width: 1080px) { .hero-spec { display: none; } }

/* scroll cue */
.scroll-cue { position: absolute; left: var(--edge); bottom: 1.6rem; z-index: 2; font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--muted); display: flex; align-items: center; gap: 0.7rem; }
.scroll-cue .rail { width: 1px; height: 46px; background: linear-gradient(var(--accent), transparent); }

/* ===================== Marquee (Branchen) ===================== */
.marquee { border-block: 1px solid var(--line); padding-block: 1.6rem; overflow: hidden; background: var(--bg-2); }
.marquee-track { display: flex; gap: 3.5rem; width: max-content; animation: slide 42s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span { font-family: var(--font-display); font-size: var(--step-2); font-weight: 700; color: var(--ink-soft); display: inline-flex; align-items: center; gap: 3.5rem; letter-spacing: -0.01em; }
.marquee-track span::after { content: ""; width: 7px; height: 7px; background: var(--accent); border-radius: 50%; }
@keyframes slide { to { transform: translateX(-50%); } }

/* ===================== Section header ===================== */
.sec-head { display: grid; grid-template-columns: 1fr; gap: 1.2rem; max-width: 820px; margin-bottom: clamp(2.5rem, 5vw, 4.5rem); }
.sec-head .idx { font-family: var(--font-mono); color: var(--muted); font-size: var(--step--1); letter-spacing: 0.1em; }

/* ===================== Leistungen (cards) ===================== */
.cards { display: grid; grid-template-columns: 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
@media (min-width: 620px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .cards { grid-template-columns: repeat(3, 1fr); } }
.card {
  background: var(--surface);
  background-image: repeating-linear-gradient(96deg, transparent 0 3px, color-mix(in srgb, var(--ink) 2%, transparent) 3px 4px);
  padding: clamp(1.6rem, 3vw, 2.6rem);
  display: flex; flex-direction: column; gap: 1rem; min-height: 300px;
  position: relative; transition: background 0.5s var(--ease);
  isolation: isolate;
}
.card::before {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0;
  background: var(--oil-gradient);
  mix-blend-mode: soft-light;
  transition: opacity 0.6s var(--ease);
}
.card:hover { background: var(--surface-2); }
.card:hover::before { opacity: 0.65; }
.card .kn { font-family: var(--font-mono); font-size: var(--step--1); color: var(--accent); letter-spacing: 0.1em; }
.card h3 { font-size: var(--step-1); letter-spacing: -0.01em; margin-top: auto; }
.card p { color: var(--muted); font-size: var(--step-0); }
.card .ico { width: 44px; height: 44px; color: var(--accent); }
.card .more { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); display: inline-flex; gap: 0.5em; opacity: 0.75; transition: gap 0.4s var(--ease), color 0.3s; }
.card:hover .more { gap: 0.9em; color: var(--accent); }

/* ===================== Split / About ===================== */
.split { display: grid; grid-template-columns: 1fr; gap: clamp(2.4rem, 5vw, 5rem); align-items: center; }
@media (min-width: 900px) { .split { grid-template-columns: 1.05fr 0.95fr; } .split.rev > :first-child { order: 2; } }
.figure {
  position: relative; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line);
  aspect-ratio: 4/5; background: var(--surface);
}
.figure svg { width: 100%; height: 100%; }
.tag-row { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.6rem; }
.tag { font-family: var(--font-mono); font-size: var(--step--1); padding: 0.4em 0.9em; border: 1px solid var(--line-strong); border-radius: 100px; color: var(--ink-soft); }

/* feature list */
.flist { display: grid; gap: 0; margin-top: 2rem; }
.flist li { list-style: none; display: grid; grid-template-columns: auto 1fr; gap: 1.2rem; padding-block: 1.3rem; border-top: 1px solid var(--line); }
.flist li:last-child { border-bottom: 1px solid var(--line); }
.flist .n { font-family: var(--font-mono); color: var(--accent); font-size: var(--step--1); }
.flist h4 { font-family: var(--font-display); font-size: var(--step-1); font-weight: 700; }
.flist p { color: var(--muted); margin-top: 0.3rem; }

/* ===================== Produkte (accordion) ===================== */
.acc { border-top: 1px solid var(--line); }
.acc-item { border-bottom: 1px solid var(--line); }
.acc-head { width: 100%; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 1.5rem; align-items: center; padding-block: clamp(1.3rem, 3vw, 2.1rem); text-align: left; transition: color 0.3s; }
.acc-head:hover { color: var(--accent); }
.acc-head .pn { font-family: var(--font-mono); color: var(--muted); font-size: var(--step--1); }
.acc-head h3 { font-size: var(--step-2); font-weight: 700; min-width: 0; hyphens: auto; overflow-wrap: anywhere; }
.acc-head .pm { width: 26px; height: 26px; position: relative; flex: none; }
.acc-head .pm::before, .acc-head .pm::after { content: ""; position: absolute; background: currentColor; inset: 50% 0 auto 0; height: 1.5px; transition: transform 0.4s var(--ease); }
.acc-head .pm::after { transform: rotate(90deg); }
.acc-item.open .pm::after { transform: rotate(0deg); }
.acc-panel { overflow: hidden; height: 0; transition: height 0.5s var(--ease); }
.acc-panel-inner { padding-bottom: clamp(1.4rem, 3vw, 2.4rem); display: grid; grid-template-columns: 1fr; gap: 1.4rem; color: var(--muted); max-width: 70ch; }
@media (min-width:760px){ .acc-panel-inner { grid-template-columns: 0.9fr 1.1fr; gap: 2.5rem; } }
.acc-panel-inner .spec { display: flex; flex-wrap: wrap; gap: 0.5rem; }

/* ===================== Quote / Qualität band ===================== */
.band { background: var(--surface); border-block: 1px solid var(--line); }
.qgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap: clamp(1.5rem,3vw,3rem); }
.qgrid .qi .k { font-family: var(--font-display); font-size: var(--step-3); font-weight: 700; color: var(--accent); }
.qgrid .qi .d { color: var(--muted); font-size: var(--step-0); margin-top: 0.4rem; }
.pullquote { font-family: var(--font-display); font-weight: 500; font-size: var(--step-3); line-height: 1.18; letter-spacing: -0.02em; max-width: 20ch; }

/* ===================== Kontakt ===================== */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: clamp(2.5rem,5vw,5rem); }
@media (min-width: 960px){ .contact-grid { grid-template-columns: 0.85fr 1.15fr; } }
.contact-aside .line { display: grid; gap: 0.2rem; padding-block: 1.2rem; border-top: 1px solid var(--line); }
.contact-aside .line:last-child { border-bottom: 1px solid var(--line); }
.contact-aside .l { font-family: var(--font-mono); font-size: var(--step--1); text-transform: uppercase; letter-spacing: 0.14em; color: var(--muted); }
.contact-aside .v { font-size: var(--step-1); color: var(--ink); }

form.cform { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem 1.2rem; }
.field { display: flex; flex-direction: column; gap: 0.5rem; }
.field.full { grid-column: 1 / -1; }
.field label { font-family: var(--font-mono); font-size: var(--step--1); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.field label .req { color: var(--accent); }
.field input, .field textarea, .field select {
  background: var(--surface); border: 1px solid var(--line-strong); border-radius: var(--radius);
  padding: 0.95em 1em; color: var(--ink); font: inherit; font-size: var(--step-0);
  transition: border-color 0.3s var(--ease), background 0.3s;
}
.field textarea { min-height: 150px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--accent); background: var(--surface-2); }
.field input::placeholder, .field textarea::placeholder { color: color-mix(in srgb, var(--muted) 75%, transparent); }
.consent { grid-column: 1/-1; display: grid; grid-template-columns: auto 1fr; gap: 0.8rem; align-items: start; font-size: var(--step--1); color: var(--muted); }
.consent input { width: 20px; height: 20px; accent-color: var(--accent); margin-top: 2px; }
.consent a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.form-actions { grid-column: 1/-1; display: flex; flex-wrap: wrap; gap: 1.2rem; align-items: center; }
.form-note { font-family: var(--font-mono); font-size: 0.72rem; color: var(--muted); letter-spacing: 0.05em; }
.form-msg { grid-column:1/-1; padding: 1rem 1.2rem; border-radius: var(--radius); font-size: var(--step-0); border:1px solid; }
.form-msg.ok { border-color: color-mix(in srgb, var(--steel) 60%, transparent); background: color-mix(in srgb, var(--steel) 14%, transparent); color: var(--ink); }
.form-msg.err { border-color: color-mix(in srgb, #c0532f 60%, transparent); background: color-mix(in srgb, #c0532f 14%, transparent); color: var(--ink); }
.honey { position: absolute; left: -9999px; opacity: 0; }

/* ===================== Footer ===================== */
.site-footer { border-top: 1px solid var(--line); padding-top: var(--section-y); padding-bottom: 2.5rem; background: var(--bg-2); }
.footer-top { display: grid; grid-template-columns: 1fr; gap: 2.5rem; }
@media (min-width: 820px){ .footer-top { grid-template-columns: 1.4fr 1fr 1fr; } }
.footer-top h4 { font-family: var(--font-mono); font-size: var(--step--1); text-transform: uppercase; letter-spacing: 0.14em; color: var(--muted); font-weight: 400; margin-bottom: 1.2rem; }
.footer-links { display: grid; gap: 0.7rem; }
.footer-links a { color: var(--ink-soft); transition: color 0.3s, padding-left 0.3s var(--ease); }
.footer-links a:hover { color: var(--accent); padding-left: 6px; }
.footer-brand .tag { border:none; padding:0; }
.footer-bottom { margin-top: clamp(3rem,6vw,5rem); padding-top: 1.6rem; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between; align-items: center; font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.05em; color: var(--muted); }
.footer-bottom a:hover { color: var(--accent); }

/* ===================== Legal pages ===================== */
.legal { padding-top: 9rem; }
.legal .wrap { max-width: 820px; }
.legal h1 { font-size: var(--step-4); margin-bottom: 2rem; }
.legal h2 { font-size: var(--step-2); margin-top: 2.6rem; margin-bottom: 0.8rem; }
.legal h3 { font-size: var(--step-1); margin-top: 1.6rem; margin-bottom: 0.5rem; }
.legal p, .legal li { color: var(--ink-soft); margin-bottom: 0.9rem; }
.legal ul { padding-left: 1.2rem; }
.legal a { color: var(--accent); text-underline-offset: 3px; text-decoration: underline; }
.legal .updated { font-family: var(--font-mono); font-size: var(--step--1); color: var(--muted); }

/* ===================== Cookie banner ===================== */
.cookie {
  position: fixed; z-index: 200; left: var(--edge); right: var(--edge); bottom: 1.4rem;
  max-width: 560px; margin-inline: auto; background: var(--surface-2);
  border: 1px solid var(--line-strong); border-radius: var(--radius-lg);
  padding: 1.4rem 1.5rem; box-shadow: 0 30px 60px -30px rgba(0,0,0,0.6);
  display: grid; gap: 1rem; transform: translateY(140%); transition: transform 0.6s var(--ease); backdrop-filter: blur(8px);
}
.cookie.show { transform: translateY(0); }
.cookie p { font-size: var(--step--1); color: var(--ink-soft); }
.cookie p a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.cookie-actions { display: flex; gap: 0.8rem; flex-wrap: wrap; }
.cookie .btn { --pad-y: 0.6em; --pad-x: 1.1em; }

/* ===================== Reveal animation ===================== */
[data-reveal] { opacity: 0; transform: translateY(26px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal][data-delay="1"]{ transition-delay: 0.08s; }
[data-reveal][data-delay="2"]{ transition-delay: 0.16s; }
[data-reveal][data-delay="3"]{ transition-delay: 0.24s; }
[data-reveal][data-delay="4"]{ transition-delay: 0.32s; }

/* ===================== Mobile nav ===================== */
@media (max-width: 860px) {
  .burger { display: flex; }
  .nav-links {
    position: fixed; inset: 0 0 0 auto; width: min(80vw, 340px);
    background: var(--surface); border-left: 1px solid var(--line);
    flex-direction: column; align-items: flex-start; justify-content: center;
    gap: 1.6rem; padding: 2rem var(--edge); transform: translateX(100%);
    transition: transform 0.5s var(--ease); z-index: 90;
  }
  .nav-links.open { transform: none; }
  .nav-links a { font-size: var(--step-2); font-family: var(--font-display); color: var(--ink); }
  .hero-side { grid-template-columns: 1fr; gap: 1.4rem; }
  form.cform { grid-template-columns: 1fr; }
}

/* ===================== Living oil field (scroll-driven) ===================== */
.oil-field {
  position: fixed; inset: -30vh -20vw; z-index: -1; pointer-events: none;
  background:
    radial-gradient(30% 40% at 22% 24%, color-mix(in srgb, var(--oil-1) 60%, transparent), transparent 70%),
    radial-gradient(26% 34% at 76% 18%, color-mix(in srgb, var(--oil-2) 52%, transparent), transparent 70%),
    radial-gradient(34% 42% at 60% 58%, color-mix(in srgb, var(--oil-4) 48%, transparent), transparent 72%),
    radial-gradient(30% 40% at 28% 82%, color-mix(in srgb, var(--oil-5) 46%, transparent), transparent 72%),
    radial-gradient(26% 34% at 86% 80%, color-mix(in srgb, var(--oil-3) 44%, transparent), transparent 72%);
  filter: blur(64px) saturate(1.03);
  opacity: 0.42;
  transform:
    translate3d(calc(var(--sx, 0) * 1px), calc(var(--sy, 0) * -0.045px), 0)
    rotate(calc(var(--sp, 0) * 26deg))
    scale(calc(1 + var(--sp, 0) * 0.28));
  will-change: transform;
}
:root[data-theme="light"] .oil-field { opacity: 0.5; }
@media (prefers-color-scheme: light) { :root:not([data-theme]) .oil-field { opacity: 0.5; } }
@media (prefers-reduced-motion: reduce) { .oil-field { transform: none !important; } }

/* the hero already carries a stronger local pool — soften the global field beneath it */
.hero { position: relative; z-index: 1; }

/* ===================== Leistungsregister (ledger, replaces card grid) ===================== */
.register { border-top: 1px solid var(--line-strong); }
.reg-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1.1fr) minmax(0, 1fr) auto;
  align-items: center; gap: clamp(1rem, 3vw, 3rem);
  padding: clamp(1.5rem, 3.2vw, 2.6rem) 0;
  border-bottom: 1px solid var(--line);
  position: relative; isolation: isolate; color: inherit;
  transition: color 0.4s var(--ease);
}
.reg-row::before {
  content: ""; position: absolute; inset: 0 calc(var(--edge) * -1); z-index: -1; opacity: 0;
  background: var(--oil-gradient); mix-blend-mode: soft-light;
  transition: opacity 0.55s var(--ease);
}
.reg-row:hover::before { opacity: 0.5; }
.reg-idx {
  font-family: var(--font-display); font-weight: 700; font-size: var(--step-1);
  color: var(--muted); letter-spacing: 0.02em; font-variant-numeric: tabular-nums;
  transition: color 0.4s var(--ease);
}
.reg-row:hover .reg-idx { color: var(--accent); }
.reg-name {
  font-family: var(--font-display); font-weight: 800; font-stretch: 90%;
  font-size: clamp(1.5rem, 1rem + 2.4vw, 2.9rem); letter-spacing: -0.03em; line-height: 1.0;
  text-transform: none;
}
.reg-desc { color: var(--muted); font-size: var(--step-0); max-width: 46ch; }
.reg-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; justify-content: flex-start; }
.reg-tags span {
  font-size: var(--step--1); letter-spacing: 0.04em; padding: 0.3em 0.7em;
  border: 1px solid var(--line-strong); border-radius: 100px; color: var(--ink-soft); white-space: nowrap;
}
.reg-go {
  font-size: var(--step-2); color: var(--muted); justify-self: end;
  transition: transform 0.5s var(--ease), color 0.4s var(--ease);
}
.reg-row:hover .reg-go { color: var(--accent); transform: translateX(6px); }
@media (max-width: 900px) {
  .reg-row { grid-template-columns: auto 1fr auto; gap: 1rem 1.4rem; }
  .reg-desc { grid-column: 2 / -1; }
  .reg-tags { grid-column: 2 / -1; }
}

/* ===================== Prinzipien (replaces numbered flist) ===================== */
.principles { margin-top: 2.2rem; display: grid; gap: 0; }
.principle { padding: 1.3rem 0; border-top: 1px solid var(--line); }
.principle:last-child { border-bottom: 1px solid var(--line); }
.principle .pr-k {
  font-family: var(--font-display); font-weight: 800; font-size: var(--step-1);
  letter-spacing: -0.015em; display: inline-flex; align-items: baseline; gap: 0.6em;
}
.principle .pr-k::before {
  content: ""; width: 0.5em; height: 0.5em; border-radius: 50%;
  background: var(--oil-gradient); flex: none; transform: translateY(-0.05em);
}
.principle p { color: var(--muted); margin-top: 0.4rem; padding-left: 1.1em; max-width: 52ch; }

/* ===================== Spec bar (replaces the 4-tile qgrid) ===================== */
.specbar {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  border-top: 1px solid var(--line-strong);
}
.specbar .sb {
  padding: 1.4rem clamp(1rem, 2vw, 1.8rem) 1.4rem 0;
  border-bottom: 1px solid var(--line); position: relative;
  display: flex; gap: 1rem; align-items: baseline;
}
.specbar .sb-k {
  font-family: var(--font-display); font-weight: 800; font-stretch: 90%;
  font-size: var(--step-2); color: var(--accent); letter-spacing: -0.02em;
  line-height: 1; flex: none; min-width: 3.2ch;
}
.specbar .sb-v { color: var(--ink-soft); font-size: var(--step-0); line-height: 1.4; min-width: 0; hyphens: auto; overflow-wrap: anywhere; }

/* utility */
.mono { font-family: var(--font-mono); }
.accent { color: var(--accent); }
.center { text-align: center; }
.mt-1 { margin-top: 1rem; } .mt-2 { margin-top: 2rem; } .mt-3 { margin-top: 3rem; }