/* ===================== FONTS ===================== */
@import url('https://fonts.googleapis.com/css2?family=Silkscreen:wght@400;700&family=DM+Serif+Display:ital@0;1&family=Inter:wght@400;500;600&display=swap');

/* ===================== VARIABLES ===================== */
:root {
  --blue: #0019FF;
  --blue-mid: rgba(0,25,255,0.15);
  --blue-faint: rgba(0,25,255,0.05);
  --bg: #F2F1EE;
  --white: #FAFAF8;
  --text: #0D0D0D;
  --text-dim: #555566;
  --amber: #FFB800;
  --green: #00C94A;

  --font-pixel: 'Silkscreen', cursive;
  --font-serif: 'DM Serif Display', serif;
  --font-body: 'Inter', sans-serif;

  --max-width: 1100px;
  --side-pad: 40px;
  --section-gap: 120px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* ===================== UTILITIES ===================== */
.pixel { font-family: var(--font-pixel); }
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--side-pad);
}

/* ===================== LANGUAGE TOGGLE ===================== */
[data-lang="en"] [data-de] { display: none; }
[data-lang="de"] [data-en] { display: none; }

/* ===================== GRID OVERLAY ===================== */
.grid-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(0,25,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,25,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* ===================== NAV ===================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--blue-mid);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--side-pad);
  height: 56px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-name {
  font-size: 0.7rem;
  letter-spacing: 2px;
  color: var(--blue);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 24px;
  flex: 1;
}

.nav-link {
  font-size: 0.6rem;
  letter-spacing: 1.5px;
  color: var(--text-dim);
  transition: color 0.15s;
}

.nav-link:hover { color: var(--blue); }

.lang-toggle {
  font-family: var(--font-pixel);
  font-size: 0.55rem;
  letter-spacing: 1px;
  background: transparent;
  border: 1px solid var(--blue-mid);
  color: var(--text-dim);
  padding: 4px 10px;
  cursor: pointer;
  transition: all 0.15s;
  flex-shrink: 0;
}

.lang-toggle:hover {
  border-color: var(--blue);
  color: var(--blue);
}

/* ===================== HERO ===================== */
.hero {
  position: relative;
  z-index: 1;
  padding-top: calc(56px + 100px);
  padding-bottom: 100px;
  border-bottom: 1px solid var(--blue-mid);
}

.hero-inner {
  width: 100%;
}

.hero-content {
  display: flex;
  align-items: flex-start;
  gap: 80px;
}

.hero-text {
  flex: 1;
  min-width: 0;
  max-width: 680px;
}

.hero-photo-wrap {
  flex-shrink: 0;
  width: 220px;
  padding-top: 8px;
}

.hero-photo {
  width: 220px;
  height: 280px;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(15%);
  border: 1px solid var(--blue-mid);
}

.hero-label {
  font-size: 0.55rem;
  letter-spacing: 3px;
  color: var(--text-dim);
  opacity: 0.6;
  margin-bottom: 24px;
}

.hero-name {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 1;
  color: var(--text);
  letter-spacing: -2px;
  margin-bottom: 28px;
}

.name-line {
  display: block;
}

.hero-roles {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.6rem;
  letter-spacing: 1px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.role-current {
  color: var(--text-dim);
}

.role-arrow {
  color: var(--blue);
  opacity: 0.5;
}

.role-target {
  color: var(--blue);
  border: 1px solid var(--blue-mid);
  padding: 3px 10px;
}

.hero-philosophy {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  line-height: 1.4;
  color: var(--text);
  margin-bottom: 40px;
  max-width: 600px;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.55rem;
  letter-spacing: 1.5px;
  color: var(--text-dim);
  flex-wrap: wrap;
}

.hero-meta .sep { opacity: 0.3; }

/* ===================== SECTION HEADER ===================== */
.section-header {
  margin-bottom: 60px;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 20px;
  align-items: start;
}

.section-num {
  font-size: 0.55rem;
  letter-spacing: 2px;
  color: var(--blue);
  opacity: 0.5;
  grid-row: 1 / 3;
  padding-top: 6px;
}

.section-title {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  line-height: 1.1;
  color: var(--text);
  letter-spacing: -0.5px;
}

.section-sub {
  font-size: 0.9rem;
  color: var(--text-dim);
  margin-top: 6px;
}

/* ===================== DECISIONS ===================== */
.decisions {
  position: relative;
  z-index: 1;
  padding: var(--section-gap) 0;
  border-bottom: 1px solid var(--blue-mid);
}

.case {
  margin-bottom: 80px;
  padding-bottom: 80px;
  border-bottom: 1px solid var(--blue-mid);
}

.case:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.case-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.55rem;
  letter-spacing: 1.5px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.case-num {
  color: var(--blue);
  font-size: 0.7rem;
}

.case-company {
  color: var(--text-dim);
}

.case-tag {
  background: var(--blue);
  color: var(--white);
  padding: 2px 10px;
  font-size: 0.5rem;
  letter-spacing: 1px;
}

.case-body {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}

.case-title {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--text);
  letter-spacing: -0.5px;
  margin-bottom: 28px;
  line-height: 1.2;
}

.case-blocks {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.case-block {
  padding: 20px 0;
  border-bottom: 1px solid var(--blue-mid);
}

.case-block:first-child { padding-top: 0; }
.case-block:last-child { border-bottom: none; }

.case-block--highlight {
  background: var(--blue-faint);
  padding: 20px;
  margin: 0 -20px;
  border-bottom: none;
  border-left: 3px solid var(--blue);
}

.case-block--highlight + .case-block {
  padding-top: 20px;
}

.block-label {
  font-size: 0.5rem;
  letter-spacing: 2px;
  color: var(--blue);
  margin-bottom: 8px;
  opacity: 0.7;
}

.block-text {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.65;
}

/* Case Visual */
.case-visual {
  border: 1px solid var(--blue-mid);
  background: var(--white);
  padding: 24px;
  position: sticky;
  top: 76px;
}

.visual-label {
  font-size: 0.5rem;
  letter-spacing: 2px;
  color: var(--blue);
  opacity: 0.5;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--blue-mid);
}

.visual-diagram {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.diag-chain {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.diag-node {
  font-family: var(--font-pixel);
  font-size: 0.5rem;
  letter-spacing: 1px;
  padding: 6px 12px;
  border: 1px solid var(--blue-mid);
  color: var(--text);
  background: var(--bg);
}

.diag-arrow-h {
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  color: var(--blue);
  opacity: 0.5;
}

.diag-divider {
  height: 1px;
  background: var(--blue-mid);
}

.diag-stats {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.diag-stat {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.diag-num {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.5rem;
  color: var(--blue);
  line-height: 1;
  flex-shrink: 0;
  min-width: 32px;
}

.diag-desc {
  font-size: 0.5rem;
  letter-spacing: 1px;
  color: var(--text-dim);
  line-height: 1.4;
}

/* Flow diagram (case 02) */
.diag-flow {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.flow-item {
  padding: 12px;
  border: 1px solid var(--blue-mid);
}

.flow-item--before { background: var(--bg); }
.flow-item--after  { background: var(--blue-faint); border-color: var(--blue); }

.flow-label {
  font-size: 0.45rem;
  letter-spacing: 2px;
  opacity: 0.5;
  margin-bottom: 4px;
}

.flow-content {
  font-size: 0.55rem;
  letter-spacing: 1px;
  color: var(--text);
}

.flow-divider {
  font-size: 0.7rem;
  text-align: center;
  color: var(--blue);
  opacity: 0.4;
  padding: 2px 0;
}

/* Quote diagram (case 03) */
.diag-quote {
  position: relative;
  padding: 16px;
  border: 1px solid var(--blue-mid);
  background: var(--bg);
}

.quote-mark {
  font-family: var(--font-serif);
  font-size: 3rem;
  color: var(--blue);
  opacity: 0.15;
  position: absolute;
  top: 0;
  left: 12px;
  line-height: 1;
}

.quote-text {
  font-size: 0.55rem;
  letter-spacing: 0.5px;
  line-height: 1.7;
  color: var(--text);
  position: relative;
  z-index: 1;
  padding-top: 12px;
}

/* ===================== PRINCIPLES ===================== */
.principles {
  position: relative;
  z-index: 1;
  padding: var(--section-gap) 0;
  border-bottom: 1px solid var(--blue-mid);
  background: var(--white);
}

.principles-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--blue-mid);
}

.principle {
  padding: 40px;
  border-right: 1px solid var(--blue-mid);
  border-bottom: 1px solid var(--blue-mid);
  transition: background 0.2s;
}

.principle:nth-child(2n) { border-right: none; }
.principle:nth-child(3),
.principle:nth-child(4) { border-bottom: none; }

.principle:hover { background: var(--blue-faint); }

.principle-num {
  font-size: 0.5rem;
  letter-spacing: 2px;
  color: var(--blue);
  opacity: 0.5;
  margin-bottom: 16px;
}

.principle-title {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.2;
}

.principle-text {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.65;
}

/* ===================== NOW ===================== */
.now {
  position: relative;
  z-index: 1;
  padding: var(--section-gap) 0;
  border-bottom: 1px solid var(--blue-mid);
}

.now-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
}

.now-block {
  padding-top: 20px;
  border-top: 2px solid var(--blue);
}

.now-label {
  font-size: 0.5rem;
  letter-spacing: 2px;
  color: var(--blue);
  margin-bottom: 12px;
}

.now-text {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.65;
}

/* ===================== CONTACT ===================== */
.contact {
  position: relative;
  z-index: 1;
  padding: var(--section-gap) 0;
  background: var(--blue);
  color: var(--white);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.contact-title {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(2.5rem, 6vw, 4rem);
  line-height: 1;
  color: var(--white);
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.contact-sub {
  font-size: 0.95rem;
  opacity: 0.7;
  line-height: 1.6;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-link {
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  letter-spacing: 1px;
  color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,0.2);
  padding-bottom: 12px;
  transition: border-color 0.15s, opacity 0.15s;
  display: block;
}

.contact-link:hover {
  border-color: var(--white);
  opacity: 0.8;
}

/* ===================== FOOTER ===================== */
.footer {
  position: relative;
  z-index: 1;
  padding: 24px 0;
  background: var(--blue);
  border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.5rem;
  letter-spacing: 1px;
  color: rgba(255,255,255,0.4);
  flex-wrap: wrap;
}

.footer-inner .sep { opacity: 0.4; }

.footer-back {
  color: rgba(255,255,255,0.4);
  transition: color 0.15s;
  margin-left: auto;
}

.footer-back:hover { color: var(--white); }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 900px) {
  :root {
    --side-pad: 24px;
    --section-gap: 80px;
  }

  .case-body {
    grid-template-columns: 1fr;
  }

  .case-visual {
    position: static;
  }

  .now-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .contact-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* ===================== CV PANEL ===================== */

.nav-cv {
  background: transparent;
  border: 1px solid var(--blue-mid);
  cursor: pointer;
  padding: 3px 10px;
  color: var(--blue);
  transition: all 0.15s;
}

.nav-cv:hover {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}

.cv-panel {
  position: fixed;
  inset: 0;
  z-index: 200;
  pointer-events: none;
}

.cv-panel.open {
  pointer-events: auto;
}

.cv-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  opacity: 0;
  transition: opacity 0.35s ease;
  cursor: pointer;
}

.cv-panel.open .cv-overlay {
  opacity: 1;
}

.cv-drawer {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 620px;
  max-width: 100%;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

.cv-panel.open .cv-drawer {
  transform: translateX(0);
}

.cv-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  border-bottom: 1px solid var(--blue-mid);
  background: var(--white);
  flex-shrink: 0;
  position: sticky;
  top: 0;
  z-index: 2;
}

.cv-drawer-title {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.cv-title-label {
  font-size: 0.5rem;
  letter-spacing: 2px;
  color: var(--blue);
  opacity: 0.6;
}

.cv-title-name {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--text);
  letter-spacing: -0.3px;
}

.cv-close {
  font-size: 0.6rem;
  letter-spacing: 1px;
  background: transparent;
  border: 1px solid var(--blue-mid);
  color: var(--text-dim);
  padding: 6px 12px;
  cursor: pointer;
  transition: all 0.15s;
  flex-shrink: 0;
}

.cv-close:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.cv-drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: 36px 28px 60px;
  overscroll-behavior: contain;
}

.cv-section {
  margin-bottom: 48px;
}

.cv-section:last-child { margin-bottom: 0; }

.cv-section-title {
  font-size: 0.55rem;
  letter-spacing: 3px;
  color: var(--blue);
  margin-bottom: 24px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--blue);
}

.cv-entry {
  padding: 20px 0;
  border-bottom: 1px solid var(--blue-mid);
}

.cv-entry:last-child { border-bottom: none; }

.cv-entry-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 10px;
}

.cv-entry-left {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.cv-role {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--text);
  line-height: 1.2;
}

.cv-company {
  font-size: 0.55rem;
  letter-spacing: 1.5px;
  color: var(--blue);
  opacity: 0.7;
}

.cv-period {
  font-size: 0.5rem;
  letter-spacing: 1px;
  color: var(--text-dim);
  white-space: nowrap;
  flex-shrink: 0;
  padding-top: 4px;
}

.cv-desc {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.65;
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 700px) {
  :root {
    --side-pad: 20px;
  }

  .nav-links { display: none; }

  .hero-name {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }

  .hero-content {
    flex-direction: column-reverse;
    gap: 36px;
  }

  .hero-photo-wrap {
    width: 100%;
  }

  .hero-photo {
    width: 120px;
    height: 150px;
  }

  .principles-grid {
    grid-template-columns: 1fr;
  }

  .principle {
    border-right: none;
    border-bottom: 1px solid var(--blue-mid);
    padding: 28px 24px;
  }

  .principle:last-child { border-bottom: none; }

  .section-header {
    grid-template-columns: 1fr;
  }

  .section-num {
    grid-row: auto;
    margin-bottom: 8px;
  }

  .cv-drawer {
    width: 100%;
  }

  .cv-drawer-body {
    padding: 24px 20px 60px;
  }

  .cv-entry-header {
    flex-direction: column;
    gap: 4px;
  }

  .cv-period {
    white-space: normal;
  }
}