/* ==========================================================================
   Blockreaction Investments GmbH — Markenhaus-Visitenkarte
   Anthrazit · Bronze · Bone — abgestimmt auf das Reactor-Logo
   ========================================================================== */

@font-face {
  font-family: 'Geist';
  src: url('brand/fonts/Geist-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist';
  src: url('brand/fonts/Geist-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist';
  src: url('brand/fonts/Geist-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root,
[data-theme='light'] {
  /* Surfaces — Bone */
  --color-bg: #F5F1EA;
  --color-surface: #FBF8F2;
  --color-surface-2: #EFEAE0;
  --color-surface-offset: #E6E0D3;
  --color-divider: #D6CFBF;
  --color-border: #CCC4B2;

  /* Text — Anthrazit */
  --color-text: #1A1F2B;
  --color-text-muted: #58607A;
  --color-text-faint: #8E96A8;
  --color-text-inverse: #F5F1EA;

  /* Primary Accent — Bronze (exakt aus Logo) */
  --color-primary: #B07A3A;
  --color-primary-hover: #976528;
  --color-primary-active: #7C521E;
  --color-primary-highlight: #EBD9BD;

  /* Anthrazit als Sekundärfläche */
  --color-anthracite: #1A1F2B;
  --color-anthracite-2: #242A38;
  --color-anthracite-3: #2F3645;

  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.4rem + 2.4vw, 3.25rem);
  --text-3xl: clamp(2.5rem, 1.6rem + 3.6vw, 4.5rem);

  /* Spacing */
  --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;

  /* Layout */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1180px;

  /* Radius / Motion / Shadow */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;
  --transition: 220ms cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-sm: 0 1px 2px rgba(26, 31, 43, 0.05);
  --shadow-md: 0 8px 24px rgba(26, 31, 43, 0.08);
  --shadow-lg: 0 18px 48px rgba(26, 31, 43, 0.12);

  /* Fonts — Geist (Headlines, gleiche Familie wie Logo) + Inter Tight (Body) */
  --font-display: 'Geist', 'Inter Tight', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter Tight', 'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  --font-mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}

[data-theme='dark'] {
  /* Surfaces — tiefes Anthrazit */
  --color-bg: #14171F;
  --color-surface: #1A1F2B;
  --color-surface-2: #1F2532;
  --color-surface-offset: #242A38;
  --color-divider: #2C3343;
  --color-border: #3A4254;

  /* Text — Bone auf Anthrazit */
  --color-text: #F5F1EA;
  --color-text-muted: #A0A6B5;
  --color-text-faint: #6A7080;
  --color-text-inverse: #1A1F2B;

  /* Bronze leicht aufgehellt für Dark-Mode-Kontrast */
  --color-primary: #D08F4F;
  --color-primary-hover: #DDA268;
  --color-primary-active: #E6B681;
  --color-primary-highlight: #3D2A14;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.5);
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body, sans-serif);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-text-size-adjust: 100%;
}

img,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

button {
  cursor: pointer;
  background: none;
  border: none;
  font: inherit;
  color: inherit;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.08;
  text-wrap: balance;
}

h3,
h4 {
  font-weight: 500;
  letter-spacing: -0.015em;
}

p {
  text-wrap: pretty;
  max-width: 60ch;
}

::selection {
  background: var(--color-primary-highlight);
  color: var(--color-anthracite);
}

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

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

/* ==========================================================================
   Layout Primitives
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.container--narrow {
  max-width: var(--content-narrow);
}

.container--default {
  max-width: var(--content-default);
}

section {
  padding-block: clamp(var(--space-16), 9vw, var(--space-32));
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: color-mix(in oklab, var(--color-bg) 82%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.site-header[data-scrolled='true'] {
  border-bottom-color: var(--color-divider);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: 1.0625rem;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.brand__mark {
  width: 36px;
  height: 36px;
  flex: none;
}

.brand__name {
  font-weight: 500;
  display: inline-flex;
  gap: 0.35em;
  align-items: baseline;
}

.brand__name strong {
  font-weight: 600;
  color: var(--color-text);
}

.brand__name span {
  color: var(--color-text-muted);
  font-weight: 400;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(var(--space-4), 2.5vw, var(--space-8));
}

.site-nav a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  letter-spacing: 0.01em;
}

.site-nav a:hover {
  color: var(--color-text);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition:
    border-color var(--transition),
    color var(--transition);
}

.theme-toggle:hover {
  color: var(--color-text);
  border-color: var(--color-border);
}

@media (max-width: 640px) {
  .site-nav a:not(.site-nav__cta) {
    display: none;
  }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  padding-top: clamp(var(--space-16), 11vw, var(--space-32));
  padding-bottom: clamp(var(--space-16), 9vw, var(--space-24));
  position: relative;
  overflow: hidden;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(var(--space-10), 6vw, var(--space-16));
  align-items: end;
}

@media (min-width: 900px) {
  .hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-primary);
  margin-bottom: var(--space-8);
}

.hero__eyebrow::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--color-primary);
}

.hero__title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-8);
}

.hero__title em {
  font-style: normal;
  font-weight: 500;
  color: var(--color-primary);
}

.hero__lead {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 36ch;
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.5;
}

.hero__meta {
  border-top: 1px solid var(--color-divider);
  padding-top: var(--space-6);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.hero__meta dt {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-2);
}

.hero__meta dd {
  font-size: var(--text-sm);
  color: var(--color-text);
}

/* ==========================================================================
   Section heading
   ========================================================================== */

.section-head {
  display: grid;
  gap: var(--space-3);
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
  max-width: 720px;
}

.section-head__label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-primary);
  font-weight: 500;
}

.section-head__title {
  font-size: var(--text-2xl);
  color: var(--color-text);
}

.section-head__intro {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-top: var(--space-4);
  max-width: 56ch;
}

/* ==========================================================================
   Profile (zweispaltig)
   ========================================================================== */

.profile {
  background: var(--color-surface);
  border-block: 1px solid var(--color-divider);
}

.profile__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(var(--space-8), 5vw, var(--space-16));
}

@media (min-width: 900px) {
  .profile__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }
}

.profile__body p + p {
  margin-top: var(--space-5);
}

.profile__body strong {
  color: var(--color-text);
  font-weight: 500;
}

/* ==========================================================================
   Fokus (Pillars)
   ========================================================================== */

.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  background: var(--color-divider);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.pillar {
  background: var(--color-bg);
  padding: clamp(var(--space-6), 3vw, var(--space-10));
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  min-height: 240px;
}

.pillar__num {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--color-primary);
  letter-spacing: 0.1em;
}

.pillar__title {
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-top: auto;
}

.pillar__body {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* ==========================================================================
   Portfolio (Holygrade-Karte + Platzhalter)
   ========================================================================== */

.portfolio {
  background: var(--color-anthracite);
  color: var(--color-text-inverse);
}

[data-theme='dark'] .portfolio {
  background: #0f1119;
}

.portfolio .section-head__title {
  color: var(--color-text-inverse);
}

[data-theme='dark'] .portfolio .section-head__title {
  color: var(--color-text);
}

.portfolio .section-head__intro {
  color: rgba(236, 233, 224, 0.7);
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

.holding-card {
  background: var(--color-anthracite-2);
  border: 1px solid var(--color-anthracite-3);
  border-radius: var(--radius-md);
  padding: clamp(var(--space-6), 3vw, var(--space-8));
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  transition:
    border-color var(--transition),
    transform var(--transition);
  position: relative;
}

[data-theme='dark'] .holding-card {
  background: var(--color-surface-2);
  border-color: var(--color-border);
}

.holding-card--featured {
  grid-column: span 2;
}

@media (max-width: 720px) {
  .holding-card--featured {
    grid-column: auto;
  }
}

.holding-card__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.holding-card__brand {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  letter-spacing: 0.12em;
  font-weight: 500;
  color: var(--color-text-inverse);
}

[data-theme='dark'] .holding-card__brand {
  color: var(--color-text);
}

.holding-card__tag {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-primary);
  padding: 4px 10px;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.holding-card__desc {
  color: rgba(236, 233, 224, 0.78);
  font-size: var(--text-base);
  line-height: 1.55;
}

[data-theme='dark'] .holding-card__desc {
  color: var(--color-text-muted);
}

.holding-card__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-anthracite-3);
}

[data-theme='dark'] .holding-card__facts {
  border-top-color: var(--color-border);
}

.holding-card__facts dt {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.holding-card__facts dd {
  font-size: var(--text-sm);
  color: var(--color-text-inverse);
}

[data-theme='dark'] .holding-card__facts dd {
  color: var(--color-text);
}

.holding-card__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-primary);
  margin-top: auto;
  font-weight: 500;
}

.holding-card__cta::after {
  content: '→';
  transition: transform var(--transition);
}

.holding-card__cta:hover::after {
  transform: translateX(4px);
}

.holding-card--placeholder {
  background: transparent;
  border: 1px dashed var(--color-anthracite-3);
  align-items: flex-start;
  justify-content: center;
  min-height: 200px;
}

[data-theme='dark'] .holding-card--placeholder {
  border-color: var(--color-border);
}

.holding-card--placeholder p {
  color: rgba(236, 233, 224, 0.5);
  font-style: italic;
  font-family: var(--font-display);
  font-size: var(--text-base);
}

[data-theme='dark'] .holding-card--placeholder p {
  color: var(--color-text-faint);
}

/* ==========================================================================
   Kontakt
   ========================================================================== */

.contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(var(--space-8), 5vw, var(--space-16));
  align-items: start;
}

@media (min-width: 900px) {
  .contact__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

.contact__lead {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-xl);
  color: var(--color-text);
  line-height: 1.3;
  max-width: 22ch;
}

.contact-list {
  display: grid;
  gap: var(--space-6);
}

.contact-list dt {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-2);
}

.contact-list dd {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 1.5;
}

.contact-list a {
  color: var(--color-text);
  border-bottom: 1px solid var(--color-primary);
  padding-bottom: 1px;
}

.contact-list a:hover {
  color: var(--color-primary);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-12) var(--space-8);
  background: var(--color-surface-2);
}

.site-footer__top {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

@media (min-width: 720px) {
  .site-footer__top {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.site-footer h4 {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
  font-weight: 500;
}

.site-footer ul {
  list-style: none;
  display: grid;
  gap: var(--space-2);
}

.site-footer a {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.site-footer a:hover {
  color: var(--color-text);
}

.site-footer__brand p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 38ch;
  margin-top: var(--space-4);
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.04em;
}

/* ==========================================================================
   Legal pages
   ========================================================================== */

.legal {
  padding-top: clamp(var(--space-16), 8vw, var(--space-24));
}

.legal h1 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-8);
}

.legal h2 {
  font-size: var(--text-lg);
  font-family: var(--font-body);
  font-weight: 600;
  margin-top: var(--space-10);
  margin-bottom: var(--space-3);
  color: var(--color-text);
  letter-spacing: 0;
}

.legal h3 {
  font-size: var(--text-base);
  font-family: var(--font-body);
  font-weight: 600;
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
  color: var(--color-text);
  letter-spacing: 0;
}

.legal p,
.legal li {
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
  max-width: 68ch;
}

.legal ul,
.legal ol {
  margin-left: var(--space-6);
  margin-bottom: var(--space-4);
}

.legal a {
  color: var(--color-primary);
  border-bottom: 1px solid currentColor;
}

.legal__lead {
  font-size: var(--text-base);
  color: var(--color-text);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-divider);
}

.legal__back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
}

.legal__back:hover {
  color: var(--color-primary);
}

.legal__back::before {
  content: '←';
}

/* ==========================================================================
   Reveal animation (only when JS is enabled and observer is set up)
   ========================================================================== */

.js-reveal .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 700ms cubic-bezier(0.16, 1, 0.3, 1),
    transform 700ms cubic-bezier(0.16, 1, 0.3, 1);
}

.js-reveal .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .js-reveal .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}