/* ================================================================
   Prof. Dr. Thomas Kropf — Brand Stylesheet
   Colors: Navy #1C2A3A | Steel #2B5B8A | Petrol #2A7F8C | Mint #3EB89A
   Fonts:  Space Grotesk (headlines) | Inter (body) — self-hosted
   ================================================================ */

/* ── SELF-HOSTED FONTS (no Google dependency) ─────────────────── */

@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/space-grotesk-latin-400-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
                 U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC,
                 U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('fonts/space-grotesk-latin-500-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
                 U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC,
                 U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('fonts/space-grotesk-latin-700-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
                 U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC,
                 U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/inter-latin-400-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
                 U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC,
                 U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('fonts/inter-latin-500-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
                 U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC,
                 U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

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

:root {
  --navy:    #1C2A3A;
  --steel:   #2B5B8A;
  --petrol:  #2A7F8C;
  --mint:    #3EB89A;
  --ice:     #EFF5F8;
  --text:    #1C2A3A;
  --mid:     #4A5568;
  --muted:   #718096;
  --white:   #FFFFFF;
  --font-h:  'Space Grotesk', sans-serif;
  --font-b:  'Inter', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-b);
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ── NAV ──────────────────────────────────────────────────────── */

nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(28,42,58,0.07);
  padding: 0 3rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-h);
  font-size: 15px;
  font-weight: 700;
  color: var(--navy);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  color: var(--mid);
  text-decoration: none;
  transition: color 0.18s;
}

.nav-links a:hover { color: var(--navy); }

.lang-toggle {
  font-family: var(--font-h);
  font-size: 12px;
  font-weight: 600;
  color: var(--petrol);
  text-decoration: none;
  border: 1.5px solid var(--petrol);
  padding: 5px 14px;
  border-radius: 20px;
  letter-spacing: 0.04em;
  transition: all 0.18s;
}

.lang-toggle:hover {
  background: var(--petrol);
  color: var(--white);
}

/* ── HERO ─────────────────────────────────────────────────────── */

#hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 55% 45%;
  padding-top: 64px;
}

.hero-text {
  background: var(--navy);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 6rem 5rem 6rem 6rem;
}

.hero-eyebrow {
  font-family: var(--font-h);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mint);
  margin-bottom: 1.5rem;
}

.hero-headline {
  font-family: var(--font-h);
  font-size: clamp(2.1rem, 3.2vw, 3.4rem);
  font-weight: 700;
  line-height: 1.08;
  color: var(--white);
  letter-spacing: -0.025em;
  margin-bottom: 2rem;
}

.hero-roles {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 3rem;
}

.role-tag {
  font-family: var(--font-h);
  font-size: 12px;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  border: 1px solid rgba(255,255,255,0.18);
  padding: 5px 14px;
  border-radius: 20px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-primary {
  font-family: var(--font-h);
  font-size: 14px;
  font-weight: 600;
  background: var(--mint);
  color: var(--white);
  padding: 13px 28px;
  border-radius: 5px;
  text-decoration: none;
  transition: background 0.18s, transform 0.15s;
  display: inline-block;
}

.btn-primary:hover {
  background: #34a88a;
  transform: translateY(-1px);
}

.btn-ghost {
  font-family: var(--font-h);
  font-size: 14px;
  font-weight: 500;
  background: transparent;
  color: rgba(255,255,255,0.7);
  padding: 13px 28px;
  border-radius: 5px;
  text-decoration: none;
  border: 1.5px solid rgba(255,255,255,0.22);
  transition: all 0.18s;
  display: inline-block;
}

.btn-ghost:hover {
  border-color: rgba(255,255,255,0.55);
  color: var(--white);
}

.hero-image {
  overflow: hidden;
  background: #c8c3bc;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 30% top;
  display: block;
  filter: saturate(0.82);
}

/* ── SHARED SECTION LAYOUT ────────────────────────────────────── */

section { padding: 7rem 0; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 3rem;
}

.section-label {
  font-family: var(--font-h);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--petrol);
  margin-bottom: 0.85rem;
}

.section-headline {
  font-family: var(--font-h);
  font-size: clamp(1.9rem, 2.6vw, 2.6rem);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

/* ── ABOUT ────────────────────────────────────────────────────── */

#about { background: var(--white); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5.5rem;
  align-items: start;
  margin-top: 3.5rem;
}

.about-quote {
  font-family: var(--font-h);
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--navy);
  line-height: 1.45;
  padding-left: 1.5rem;
  border-left: 3px solid var(--mint);
  margin-bottom: 1.75rem;
  font-style: italic;
}

.about-bio {
  font-size: 16px;
  color: var(--mid);
  line-height: 1.8;
  margin-bottom: 1.1rem;
}

.about-bio:last-child { margin-bottom: 0; }

.about-link {
  color: var(--petrol);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.15s;
}

.about-link:hover { color: var(--steel); text-decoration: underline; }

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.stat-card {
  background: var(--ice);
  border-radius: 10px;
  padding: 1.5rem 1.5rem 1.5rem;
}

.stat-number {
  font-family: var(--font-h);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-number .accent { color: var(--mint); }

.stat-desc {
  font-size: 13px;
  color: var(--mid);
  line-height: 1.45;
}

/* ── SERVICES ─────────────────────────────────────────────────── */

#services { background: var(--ice); }

.services-intro {
  font-size: 17px;
  color: var(--mid);
  line-height: 1.75;
  margin-top: 0.75rem;
  max-width: 580px;
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-top: 3rem;
}

.service-card {
  background: var(--white);
  border-radius: 10px;
  padding: 2rem;
  border: 1px solid rgba(28,42,58,0.05);
  transition: transform 0.2s, box-shadow 0.2s;
}

.service-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(28,42,58,0.07);
}

.service-icon {
  width: 42px;
  height: 42px;
  background: var(--ice);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.service-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--petrol);
  fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-title {
  font-family: var(--font-h);
  font-size: 17px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 0.7rem;
}

.service-desc {
  font-size: 14px;
  color: var(--mid);
  line-height: 1.7;
}

.speaking-strip {
  margin-top: 2.5rem;
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  height: 260px;
  background: var(--navy);
}

.speaking-strip img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
  display: block;
  filter: saturate(0.25) brightness(0.42);
}

.speaking-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  padding: 2.5rem 3.5rem;
}

.speaking-text {
  font-family: var(--font-h);
  font-size: clamp(1.1rem, 1.8vw, 1.55rem);
  font-weight: 700;
  color: var(--white);
  max-width: 640px;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.speaking-text em {
  color: var(--mint);
  font-style: normal;
}

/* ── CONTACT ──────────────────────────────────────────────────── */

#contact { background: var(--navy); }

.contact-inner {
  text-align: center;
  max-width: 580px;
  margin: 0 auto;
}

.contact-headline {
  font-family: var(--font-h);
  font-size: clamp(1.9rem, 2.6vw, 2.8rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.12;
  letter-spacing: -0.022em;
  margin-bottom: 1.25rem;
}

.contact-sub {
  font-size: 16px;
  color: rgba(255,255,255,0.55);
  line-height: 1.75;
  margin-bottom: 2.75rem;
}

.contact-ctas {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-mint {
  font-family: var(--font-h);
  font-size: 15px;
  font-weight: 600;
  background: var(--mint);
  color: var(--white);
  padding: 14px 32px;
  border-radius: 5px;
  text-decoration: none;
  transition: background 0.18s;
}

.btn-mint:hover { background: #34a88a; }

.btn-outline-white {
  font-family: var(--font-h);
  font-size: 15px;
  font-weight: 500;
  background: transparent;
  color: rgba(255,255,255,0.7);
  padding: 14px 32px;
  border-radius: 5px;
  text-decoration: none;
  border: 1.5px solid rgba(255,255,255,0.22);
  transition: all 0.18s;
}

.btn-outline-white:hover {
  border-color: rgba(255,255,255,0.55);
  color: var(--white);
}

/* ── FOOTER ───────────────────────────────────────────────────── */

footer {
  background: #111c27;
  padding: 2rem 3rem;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.footer-quote {
  font-family: var(--font-h);
  font-size: 13px;
  font-style: italic;
  color: rgba(255,255,255,0.28);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.footer-links a {
  font-size: 13px;
  color: rgba(255,255,255,0.3);
  text-decoration: none;
  transition: color 0.15s;
}

.footer-links a:hover { color: rgba(255,255,255,0.6); }

.footer-copy {
  font-size: 13px;
  color: rgba(255,255,255,0.2);
}

/* ── HERO SUBTITLE ────────────────────────────────────────────── */

.hero-subtitle {
  font-family: var(--font-b);
  font-size: 16px;
  color: rgba(255,255,255,0.52);
  line-height: 1.65;
  margin-bottom: 2rem;
  max-width: 420px;
}

/* ── POINT OF VIEW / TOPICS ───────────────────────────────────── */

#topics {
  background: var(--navy);
  padding: 5rem 0;
}

.topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 2rem;
}

.topic-tag {
  font-family: var(--font-h);
  font-size: 13px;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  border: 1px solid rgba(62,184,154,0.4);
  padding: 8px 18px;
  border-radius: 24px;
  cursor: default;
  transition: all 0.18s;
}

.topic-tag:hover {
  border-color: var(--mint);
  color: var(--mint);
}

#topics .section-label { color: var(--mint); }

#topics .section-headline {
  color: var(--white);
  max-width: 500px;
}

.topic-intro {
  font-size: 16px;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
  margin-top: 2rem;
  max-width: 680px;
}

/* ── AFFILIATIONS ─────────────────────────────────────────────── */

.affiliations {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(28,42,58,0.08);
}

.affiliations-label {
  font-family: var(--font-h);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--petrol);
  margin-bottom: 0.75rem;
}

.affiliations-row {
  font-size: 13px;
  color: var(--mid);
  line-height: 1.9;
}

.affiliations-row strong {
  color: var(--navy);
  font-weight: 500;
}

/* ── SITUATIONS LIST ──────────────────────────────────────────── */

.situations {
  margin-bottom: 3rem;
}

.situations-lead {
  font-family: var(--font-h);
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.25rem;
}

.situation-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-left: 2px solid var(--mint);
  padding-left: 1.5rem;
}

.situation-list li {
  font-family: var(--font-h);
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  font-weight: 500;
  color: var(--navy);
  line-height: 1.35;
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(28,42,58,0.07);
}

.situation-list li:last-child { border-bottom: none; }

/* ── RESPONSIVE ───────────────────────────────────────────────── */

@media (max-width: 900px) {
  nav { padding: 0 1.5rem; }
  .nav-links { display: none; }

  #hero {
    grid-template-columns: 1fr;
  }
  .hero-image {
    height: 60vw;
    order: -1;
  }
  .hero-text {
    padding: 3.5rem 1.75rem;
  }

  .about-grid { grid-template-columns: 1fr; gap: 3rem; }
  .services-grid { grid-template-columns: 1fr; }
  .container { padding: 0 1.5rem; }
  section { padding: 5rem 0; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .hero-text { min-height: auto; }
  .speaking-overlay { padding: 1.75rem 2rem; }
}