/* ============================================================
   Matthias Höchst — Executive Landing Page
   Design system: dark premium theme, gold/blue accents
   ============================================================ */

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

:root {
  /* Type scale */
  --text-xs: clamp(0.75rem, 0.72rem + 0.2vw, 0.85rem);
  --text-sm: clamp(0.85rem, 0.8rem + 0.3vw, 0.95rem);
  --text-base: clamp(1rem, 0.96rem + 0.25vw, 1.1rem);
  --text-lg: clamp(1.1rem, 1rem + 0.6vw, 1.35rem);
  --text-xl: clamp(1.4rem, 1.15rem + 1.1vw, 1.9rem);
  --text-2xl: clamp(1.6rem, 1.2rem + 1.6vw, 2.35rem);
  --text-hero: clamp(2.3rem, 1.5rem + 3.6vw, 4.4rem);

  /* Spacing (4px base) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --font-display: 'Switzer', 'Georgia', serif;
  --font-body: 'Satoshi', 'Helvetica Neue', sans-serif;

  --radius-sm: 0.4rem;
  --radius-md: 0.65rem;
  --radius-lg: 1rem;
  --radius-full: 9999px;

  --transition-interactive: 200ms cubic-bezier(0.16, 1, 0.3, 1);
  --content-max: 1180px;

  /* Dark theme (default) */
  --color-bg: #0b0d12;
  --color-surface: #12151c;
  --color-surface-2: #171b24;
  --color-border: rgba(255, 255, 255, 0.09);
  --color-border-strong: rgba(255, 255, 255, 0.16);
  --color-text: #eceef2;
  --color-text-muted: #9aa1b0;
  --color-text-faint: #838b9c;
  --color-accent: #d9b96a;
  --color-accent-hover: #e8ca87;
  --color-primary: #7ea3d6;
  --color-primary-hover: #9bb9e2;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.45);
}

[data-theme='light'] {
  --color-bg: #f6f5f1;
  --color-surface: #ffffff;
  --color-surface-2: #f0eee8;
  --color-border: rgba(20, 24, 31, 0.1);
  --color-border-strong: rgba(20, 24, 31, 0.2);
  --color-text: #14181f;
  --color-text-muted: #565d6b;
  --color-text-faint: #5b6272;
  --color-accent: #a4791f;
  --color-accent-hover: #8a6417;
  --color-primary: #34608f;
  --color-primary-hover: #244a72;
  --shadow-sm: 0 1px 2px rgba(20, 24, 31, 0.06);
  --shadow-md: 0 8px 24px rgba(20, 24, 31, 0.08);
  --shadow-lg: 0 20px 50px rgba(20, 24, 31, 0.12);
}

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  position: relative;
  overflow-x: hidden;
  transition: background-color var(--transition-interactive), color var(--transition-interactive);
}

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

::selection { background: color-mix(in oklab, var(--color-accent) 30%, transparent); color: var(--color-text); }

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

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  background: var(--color-surface);
  color: var(--color-text);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  z-index: 200;
  transition: top var(--transition-interactive);
  border: 1px solid var(--color-border-strong);
}
.skip-link:focus { top: var(--space-4); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Background canvas + veil ---------- */
#network {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  opacity: 0.6;
}
.bg-veil {
  position: fixed;
  inset: -10%;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(circle at 16% 14%, color-mix(in oklab, var(--color-primary) 16%, transparent), transparent 55%),
    radial-gradient(circle at 84% 82%, color-mix(in oklab, var(--color-accent) 13%, transparent), transparent 50%);
  animation: drift 18s ease-in-out infinite alternate;
}
@keyframes drift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  100% { transform: translate3d(-2%, 2%, 0) scale(1.06); }
}
@media (prefers-reduced-motion: reduce) {
  #network { display: none; }
  .bg-veil { animation: none; }
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 78%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-interactive), border-color var(--transition-interactive);
}
.header-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0.9rem var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}
.brand .logo {
  width: 26px;
  height: 26px;
  color: var(--color-text);
  transition: transform var(--transition-interactive), color var(--transition-interactive);
}
.brand:hover .logo {
  color: var(--color-accent);
  transform: rotate(-6deg) scale(1.06);
}
.brand-name {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.header-actions { display: flex; align-items: center; gap: var(--space-3); flex-shrink: 0; }
.theme-toggle {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  transition: color var(--transition-interactive), background var(--transition-interactive);
}
.theme-toggle:hover {
  color: var(--color-accent);
  background: var(--color-surface);
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: calc(5rem + var(--space-10)) var(--space-6) var(--space-16);
  text-align: center;
  position: relative;
}
.hero-inner { max-width: 720px; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.reveal { opacity: 0; animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.reveal--0 { animation-delay: 0s; }
.reveal--1 { animation-delay: 0.05s; }
.reveal--2 { animation-delay: 0.22s; }
.reveal--2b { animation-delay: 0.36s; }
.reveal--3 { animation-delay: 0.5s; }
.reveal--4 { animation-delay: 0.7s; }
.reveal--4b { animation-delay: 0.86s; }
.reveal--5 { animation-delay: 1.02s; }
.reveal--6 { animation-delay: 1.18s; }

.hero-logo {
  width: 48px;
  height: 48px;
  color: var(--color-text);
  margin: 0 auto 1.5rem;
  display: block;
}
.hero-logo path {
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  animation: drawLine 1.4s cubic-bezier(0.65, 0, 0.35, 1) forwards;
  animation-delay: inherit;
}
.hero-logo path:nth-child(1) { animation-delay: 0.05s; }
.hero-logo path:nth-child(2) { animation-delay: 0.6s; }
.hero-logo path:nth-child(3) { animation-delay: 0.9s; }
@keyframes drawLine { to { stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce) {
  .hero-logo path { animation: none; stroke-dashoffset: 0; }
}

.eyebrow {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 0.6rem;
}
.positioning {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 0.6rem;
}
.positioning .pipe { color: var(--color-text-faint); margin: 0 0.35em; font-weight: 400; }
.specialization {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
  margin: 0 0 var(--space-8);
}
.specialization .dot { color: var(--color-accent); margin: 0 0.5em; opacity: 0.8; }

h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-hero);
  line-height: 1.08;
  letter-spacing: -0.015em;
  text-wrap: balance;
  margin: 0 auto 1.4rem;
  max-width: 15ch;
}

.value-prop {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  line-height: 1.5;
  color: var(--color-text);
  max-width: 46ch;
  margin: 0 auto var(--space-8);
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-bg);
  background: var(--color-accent);
  padding: 0.8rem 1.5rem;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  transition: background var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.cta svg { transform: rotate(-90deg); }
.cta:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ---------- Chips ---------- */
.chips {
  margin-top: var(--space-24);
  max-width: 880px;
  text-align: center;
}
.chips-label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-5);
}
.chip-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
}
.chip-list--secondary {
  margin-top: var(--space-3);
}
.chip {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 0.5rem 1.1rem;
  transition: border-color var(--transition-interactive), color var(--transition-interactive), background var(--transition-interactive);
}
.chip:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: color-mix(in oklab, var(--color-accent) 8%, transparent);
}
.chip--primary {
  font-weight: 600;
  color: var(--color-accent);
  border-color: color-mix(in oklab, var(--color-accent) 55%, var(--color-border));
  background: color-mix(in oklab, var(--color-accent) 10%, transparent);
}
.chip--primary:hover {
  border-color: var(--color-accent);
  background: color-mix(in oklab, var(--color-accent) 18%, transparent);
}
.chip-list--secondary .chip {
  font-size: 0.72rem;
  padding: 0.44rem 1rem;
  color: var(--color-text-faint);
  border-color: color-mix(in oklab, var(--color-border) 75%, transparent);
}
.chips-group + .chips-group {
  margin-top: var(--space-6);
}
.chip--field {
  color: var(--color-primary);
  border-color: color-mix(in oklab, var(--color-primary) 45%, var(--color-border));
  background: color-mix(in oklab, var(--color-primary) 10%, transparent);
}
.chip--field:hover {
  border-color: var(--color-primary);
  background: color-mix(in oklab, var(--color-primary) 18%, transparent);
}

.scroll-hint {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text-faint);
  animation: bob 2.4s ease-in-out infinite;
}
.scroll-hint:hover { color: var(--color-accent); }
@keyframes bob {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}
@media (prefers-reduced-motion: reduce) { .scroll-hint { animation: none; } }

/* ---------- Impact / Transformation Framework ---------- */
.highlights {
  padding: var(--space-16) var(--space-6);
  position: relative;
}
.highlights-inner { max-width: var(--content-max); margin: 0 auto; text-align: center; }
.highlights-heading {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  max-width: 32ch;
  margin: var(--space-3) auto var(--space-6);
}
.highlights-inner > .eyebrow { display: block; }
.highlights-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
  margin-top: var(--space-8);
}
.highlight-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}
.highlight-value {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.6rem, 4.4vw, 3.6rem);
  line-height: 1;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}
.highlight-suffix {
  color: var(--color-accent);
  font-size: 0.48em;
  font-weight: 600;
  vertical-align: 0.22em;
  margin-left: 0.1em;
  letter-spacing: 0.01em;
}
.highlight-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 20ch;
}
@media (max-width: 900px) {
  .highlights-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-10) var(--space-6); }
}
@media (max-width: 480px) {
  .highlights-grid { grid-template-columns: 1fr 1fr; }
  .highlight-value { font-size: clamp(2.3rem, 11vw, 3rem); }
}

.impact {
  padding: var(--space-24) var(--space-6) var(--space-16);
  position: relative;
}
.impact-inner { max-width: var(--content-max); margin: 0 auto; text-align: center; }
.impact-portrait {
  width: 264px;
  height: 264px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 1px solid var(--color-border-strong);
  box-shadow: 0 0 0 6px color-mix(in oklab, var(--color-accent) 14%, transparent);
  margin: 0 auto var(--space-6);
  display: block;
  filter: grayscale(0.1);
}
.impact-heading {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  max-width: 20ch;
  margin: 0 auto var(--space-3);
}
.impact-lede {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  line-height: 1.6;
  color: var(--color-text);
  max-width: 58ch;
  margin: 0 auto;
  text-wrap: balance;
}

.horizon-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  max-width: 1080px;
  margin: var(--space-20) auto 0;
  text-align: left;
}
.horizon-line {
  position: absolute;
  top: -13px;
  left: 15%;
  right: 15%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent) 12%, var(--color-accent) 88%, transparent);
  opacity: 0.45;
  overflow: hidden;
  z-index: 0;
}
.horizon-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: -35%;
  width: 35%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.85), transparent);
  animation: horizonFlow 5.5s ease-in-out infinite;
}
@keyframes horizonFlow {
  0% { left: -35%; }
  100% { left: 100%; }
}
.horizon-card {
  position: relative;
  padding: var(--space-8) var(--space-6) var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: color-mix(in oklab, var(--color-surface) 88%, transparent);
  backdrop-filter: blur(6px);
  text-align: center;
  transition: border-color var(--transition-interactive), transform var(--transition-interactive), background var(--transition-interactive);
}
.horizon-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
}
.horizon-node {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-bg), 0 0 12px rgba(217, 185, 106, 0.5);
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive);
  z-index: 1;
}
.horizon-card:hover .horizon-node {
  transform: translateX(-50%) scale(1.35);
  box-shadow: 0 0 0 4px var(--color-bg), 0 0 18px rgba(217, 185, 106, 0.85);
}
.horizon-tag {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}
.horizon-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  margin: 0 0 var(--space-3);
}
.horizon-card p {
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.6;
  margin: 0 0 var(--space-5);
}
.horizon-focus {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5em 0.9em;
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.5;
}
.horizon-focus li {
  position: relative;
  padding-left: 0.9em;
}
.horizon-focus li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.55;
}

@media (max-width: 860px) {
  .horizon-track { grid-template-columns: 1fr; gap: var(--space-10); margin-top: var(--space-16); }
  .horizon-line { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .horizon-line::after { animation: none; display: none; }
}

/* ---------- Section reveal-on-scroll ---------- */
[data-reveal-section] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
[data-reveal-section].is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal-section] { opacity: 1; transform: none; }
}

/* ---------- Contact ---------- */
.contact-section {
  padding: var(--space-16) var(--space-6) var(--space-24);
}
.contact-inner { max-width: 880px; margin: 0 auto; text-align: center; }
.contact-heading {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  margin: 0 0 var(--space-4);
}
.contact-copy {
  color: var(--color-text-muted);
  max-width: 52ch;
  margin: 0 auto var(--space-12);
  line-height: 1.65;
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: var(--space-4);
  text-align: left;
}
.contact-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: color-mix(in oklab, var(--color-surface) 60%, transparent);
  transition: border-color var(--transition-interactive), transform var(--transition-interactive), background var(--transition-interactive);
}
.contact-card svg { flex-shrink: 0; color: var(--color-accent); }
.contact-card strong { display: block; font-size: var(--text-sm); font-weight: 600; margin-bottom: 0.15rem; }
.contact-card em { display: block; font-style: normal; font-size: var(--text-xs); color: var(--color-text-muted); word-break: break-word; }
a.contact-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
  background: var(--color-surface);
}
.contact-card--primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-bg);
  box-shadow: var(--shadow-sm);
}
.contact-card--primary svg { color: var(--color-bg); }
.contact-card--primary em { color: color-mix(in oklab, var(--color-bg) 72%, transparent); }
.contact-card--primary { position: relative; padding-right: var(--space-10); }
.contact-card-arrow {
  position: absolute;
  top: 50%;
  right: var(--space-5);
  transform: translateY(-50%);
  flex-shrink: 0;
  transition: transform var(--transition-interactive);
}
a.contact-card--primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
a.contact-card--primary:hover .contact-card-arrow { transform: translateY(-50%) translateX(3px); }
.contact-qr { align-items: center; }
.contact-qr img { border-radius: var(--radius-sm); border: 1px solid var(--color-border); }

/* ---------- Footer ---------- */
.site-footer {
  padding: var(--space-10) var(--space-6);
  text-align: center;
}
.footer-inner {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  display: flex;
  gap: 0.6em;
  justify-content: center;
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .header-inner { padding: 0.75rem var(--space-4); }
  .brand-name { display: none; }
  .hero { padding: calc(4.5rem + var(--space-6)) var(--space-4) var(--space-12); }
  .chips { margin-top: var(--space-16); }
  .contact-section, .impact { padding: var(--space-20) var(--space-4); }
  .highlights { padding: var(--space-10) var(--space-4); }
  .scroll-hint { display: none; }
}

@media (max-height: 620px) and (min-width: 641px) {
  .hero { min-height: auto; padding-top: 6.5rem; padding-bottom: var(--space-10); }
}