:root {
  --ink: #263e46;
  --ink-soft: #4e636a;
  --yellow: #fbc344;
  --yellow-deep: #e9a927;
  --yellow-pale: #fff4d4;
  --paper: #fbfaf6;
  --white: #ffffff;
  --line: #d7e0e1;
  --shadow: 0 24px 70px rgba(38, 62, 70, 0.14);
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); }
body, a, button { font: inherit; }
a { color: inherit; }
a, button { -webkit-tap-highlight-color: transparent; }

.site-header {
  position: absolute;
  z-index: 5;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  width: min(1280px, calc(100% - 64px));
  margin: 0 auto;
  padding: 29px 0;
}

.brand { display: inline-grid; gap: 2px; text-decoration: none; }
.brand-name { color: var(--yellow); font-size: 25px; font-weight: 800; letter-spacing: -0.06em; line-height: 0.92; }
.brand-name span { color: var(--white); font-weight: 500; }
.brand-line { color: rgba(255,255,255,.74); font-size: 10px; letter-spacing: .04em; }
.header-link { padding: 11px 17px; border: 1px solid rgba(255,255,255,.45); border-radius: 999px; color: var(--white); font-size: 14px; font-weight: 750; text-decoration: none; transition: background .18s ease, color .18s ease; }
.header-link:hover, .header-link:focus-visible { background: var(--white); color: var(--ink); }

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, .86fr);
  gap: clamp(40px, 7vw, 118px);
  min-height: 770px;
  padding: 146px max(32px, calc((100vw - 1280px) / 2)) 88px;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}

.hero::before {
  position: absolute;
  top: -210px;
  right: 26%;
  width: 560px;
  height: 560px;
  border: 1px solid rgba(251,195,68,.38);
  border-radius: 50%;
  content: "";
}

.hero::after {
  position: absolute;
  right: -80px;
  bottom: -250px;
  width: 680px;
  height: 680px;
  border: 1px solid rgba(255,255,255,.11);
  border-radius: 50%;
  content: "";
}

.hero-copy, .hero-visual { position: relative; z-index: 1; }
.hero-copy { align-self: center; max-width: 700px; }
.eyebrow, .section-kicker { margin: 0 0 18px; color: var(--yellow); font-size: 13px; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
.eyebrow-dark { color: var(--ink-soft); }
h1, h2, h3 { margin: 0; font-family: Georgia, "Times New Roman", serif; font-weight: 400; letter-spacing: -.035em; }
h1 { max-width: 720px; font-size: clamp(54px, 6.8vw, 96px); line-height: .95; }
h1 em { color: var(--yellow); font-style: normal; }
.hero-lead { max-width: 590px; margin: 28px 0 34px; color: rgba(255,255,255,.82); font-size: clamp(18px, 2vw, 23px); line-height: 1.45; }

.event-details { display: grid; grid-template-columns: 1.05fr .95fr; max-width: 660px; margin: 0 0 34px; border-top: 1px solid rgba(255,255,255,.26); border-bottom: 1px solid rgba(255,255,255,.26); }
.event-detail { display: grid; gap: 6px; padding: 17px 24px 18px 0; color: rgba(255,255,255,.7); font-size: 14px; line-height: 1.35; }
.event-detail + .event-detail { padding-left: 24px; border-left: 1px solid rgba(255,255,255,.2); }
.event-detail strong { color: var(--white); font-size: 16px; font-weight: 750; }
.detail-label { color: var(--yellow); font-size: 11px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 23px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 53px; padding: 0 24px; border-radius: 999px; font-size: 15px; font-weight: 800; text-decoration: none; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.button:hover, .button:focus-visible { transform: translateY(-2px); box-shadow: 0 12px 24px rgba(0,0,0,.16); }
.button-primary { background: var(--yellow); color: var(--ink); }
.button-primary:hover, .button-primary:focus-visible { background: #ffd46c; }
.text-link { color: rgba(255,255,255,.82); font-size: 15px; font-weight: 700; text-decoration: none; }
.text-link:hover, .text-link:focus-visible { color: var(--yellow); }

.hero-visual { align-self: center; justify-self: center; width: min(100%, 480px); padding: 0 0 42px 30px; }
.visual-orbit { position: absolute; top: -45px; right: -8px; width: 185px; height: 185px; border: 2px solid var(--yellow); border-left-color: transparent; border-radius: 50%; transform: rotate(22deg); }
.visual-orbit::after { position: absolute; right: -7px; bottom: 26px; width: 13px; height: 13px; border-radius: 50%; background: var(--yellow); content: ""; }
.visual-frame { position: relative; width: 100%; padding: 13px; background: var(--yellow); box-shadow: var(--shadow); }
.visual-frame::before { position: absolute; inset: 13px; border: 1px solid rgba(38,62,70,.26); content: ""; pointer-events: none; }
.visual-frame img { display: block; width: 100%; aspect-ratio: 1 / 1.07; object-fit: cover; object-position: center 28%; }
.visual-caption { position: absolute; right: -16px; bottom: 4px; display: flex; align-items: flex-start; gap: 12px; color: var(--white); font-size: 15px; font-weight: 750; line-height: 1.25; }
.visual-caption small { color: rgba(255,255,255,.63); font-size: 12px; font-weight: 500; }
.caption-rule { width: 46px; height: 1px; margin-top: 10px; background: var(--yellow); }

.intro-section { padding: 98px max(32px, calc((100vw - 1160px) / 2)) 92px; background: var(--yellow); }
.section-kicker { color: var(--ink); }
.intro-layout { display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(300px, .86fr); gap: clamp(42px, 8vw, 150px); align-items: end; }
.intro-layout h2 { max-width: 660px; color: var(--ink); font-size: clamp(38px, 5vw, 68px); line-height: .99; }
.intro-layout p { max-width: 560px; margin: 0; color: rgba(38,62,70,.8); font-size: 18px; line-height: 1.65; }

.topics-section { padding: 106px max(32px, calc((100vw - 1160px) / 2)) 118px; background: var(--paper); }
.section-heading { max-width: 760px; }
.section-heading h2, .about-copy h2 { color: var(--ink); font-size: clamp(39px, 4.7vw, 65px); line-height: 1.02; }
.topic-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 57px; }
.topic-card { min-height: 300px; padding: 30px 28px 33px; border-top: 4px solid var(--ink); background: var(--white); box-shadow: 0 10px 30px rgba(38,62,70,.06); }
.topic-card-accent { border-top-color: var(--yellow-deep); background: var(--yellow-pale); }
.topic-number { display: block; color: var(--yellow-deep); font-size: 13px; font-weight: 850; letter-spacing: .1em; }
.topic-card h3 { margin: 57px 0 16px; font-size: 31px; line-height: 1.02; }
.topic-card p { margin: 0; color: var(--ink-soft); font-size: 16px; line-height: 1.55; }

.about-section { display: grid; grid-template-columns: minmax(280px, .85fr) minmax(0, 1.1fr); gap: clamp(45px, 9vw, 140px); align-items: center; padding: 92px max(32px, calc((100vw - 1160px) / 2)); background: #edf2f1; }
.about-logo { display: grid; place-items: center; min-height: 325px; padding: 26px; background: var(--white); }
.about-logo img { display: block; width: min(100%, 360px); height: auto; }
.about-copy { max-width: 650px; }
.about-copy h2 { font-size: clamp(37px, 4.5vw, 60px); }
.about-copy > p:not(.eyebrow) { margin: 24px 0 0; color: var(--ink-soft); font-size: 18px; line-height: 1.62; }
.about-link { display: inline-flex; gap: 8px; margin-top: 29px; color: var(--ink); font-size: 15px; font-weight: 800; text-decoration: none; }
.about-link:hover, .about-link:focus-visible { color: var(--yellow-deep); }

.signup-section { padding: 86px max(32px, calc((100vw - 1160px) / 2)); background: var(--ink); color: var(--white); }
.signup-inner { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, .76fr); gap: 70px; align-items: center; }
.signup-section h2 { max-width: 600px; color: var(--white); font-size: clamp(42px, 5.3vw, 70px); line-height: .98; }
.signup-action { padding-left: 42px; border-left: 1px solid rgba(255,255,255,.26); }
.signup-action p { margin: 0 0 27px; color: rgba(255,255,255,.74); font-size: 16px; line-height: 1.6; }
.signup-action time { color: var(--white); font-weight: 750; }
.button-light { background: var(--white); color: var(--ink); }
.button-light:hover, .button-light:focus-visible { background: var(--yellow); }

.site-footer { display: flex; justify-content: space-between; gap: 24px; padding: 28px max(32px, calc((100vw - 1160px) / 2)); background: #1c3037; color: rgba(255,255,255,.6); font-size: 13px; line-height: 1.5; }
.site-footer > div:first-child { display: grid; gap: 2px; }
.footer-name { color: var(--yellow); font-size: 17px; font-weight: 800; }
.footer-contact { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 20px; }
.site-footer a { color: var(--white); text-decoration: none; }
.site-footer a:hover, .site-footer a:focus-visible { color: var(--yellow); }

:focus-visible { outline: 3px solid var(--yellow); outline-offset: 4px; }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 135px; }
  .hero-copy { max-width: 760px; }
  .hero-visual { width: min(100%, 490px); margin-top: 20px; }
  .intro-layout, .about-section, .signup-inner { grid-template-columns: 1fr; }
  .topic-grid { grid-template-columns: 1fr 1fr; }
  .topic-card { min-height: 270px; }
  .signup-action { padding: 28px 0 0; border-top: 1px solid rgba(255,255,255,.26); border-left: 0; }
}

@media (max-width: 600px) {
  .site-header { width: calc(100% - 36px); padding-top: 20px; }
  .brand-name { font-size: 22px; }
  .brand-line { max-width: 190px; font-size: 9px; line-height: 1.3; }
  .header-link { padding: 9px 13px; font-size: 13px; }
  .hero { gap: 30px; padding: 116px 18px 70px; }
  .hero h1 { font-size: clamp(48px, 14vw, 72px); }
  .hero-lead { margin: 22px 0 27px; font-size: 18px; }
  .event-details { grid-template-columns: 1fr; }
  .event-detail { padding: 16px 0; }
  .event-detail + .event-detail { padding-left: 0; border-top: 1px solid rgba(255,255,255,.2); border-left: 0; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 18px; }
  .visual-frame { padding: 9px; }
  .visual-frame::before { inset: 9px; }
  .visual-caption { right: -4px; bottom: 0; font-size: 14px; }
  .intro-section, .topics-section, .about-section, .signup-section { padding-right: 18px; padding-left: 18px; }
  .intro-section { padding-top: 69px; padding-bottom: 72px; }
  .intro-layout { gap: 26px; }
  .intro-layout p { font-size: 17px; }
  .topics-section { padding-top: 73px; padding-bottom: 80px; }
  .topic-grid { grid-template-columns: 1fr; gap: 13px; margin-top: 38px; }
  .topic-card { min-height: 0; padding: 25px 22px 28px; }
  .topic-card h3 { margin-top: 27px; font-size: 28px; }
  .about-section { gap: 35px; padding-top: 69px; padding-bottom: 75px; }
  .about-logo { min-height: 230px; padding: 17px; }
  .about-copy > p:not(.eyebrow) { font-size: 17px; }
  .signup-section { padding-top: 68px; padding-bottom: 70px; }
  .signup-inner { gap: 28px; }
  .site-footer { align-items: flex-start; flex-direction: column; padding: 24px 18px; }
  .footer-contact { justify-content: flex-start; gap: 8px 18px; }
}

.hero-visual.portrait-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; width: 100%; max-width: 540px; padding: 0; }
.speaker-portrait { margin: 0; min-width: 0; }
.speaker-portrait .visual-frame { padding: 7px; }
.speaker-portrait .visual-frame::before { inset: 7px; }
.speaker-portrait img { aspect-ratio: 3 / 4; }
.speaker-portrait img.katrin-photo { object-position: 58% center; }
.speaker-portrait img.sonja-photo { object-position: 24% center; }
.speaker-portrait figcaption { margin-top: 15px; font-size: 17px; font-weight: 700; line-height: 1.4; }
.speaker-portrait figcaption small { display: block; color: rgba(255,255,255,.75); font-size: 14px; font-weight: 400; }
@media (max-width: 600px) { .hero-visual.portrait-pair { gap: 12px; } }

.signup-form { display: grid; gap: 16px; margin: 24px 0; }
.signup-form label { display: grid; gap: 7px; font-size: 16px; }
.signup-form input:not([type=checkbox]) { width: 100%; min-width: 0; padding: 13px; border: 1px solid #a8b8bd; border-radius: 5px; font: inherit; }
.signup-form .consent { display: flex; align-items: flex-start; line-height: 1.5; font-size: 14px; }
.consent input { margin-top: 4px; flex-shrink: 0; width: 19px; height: 19px; }
.signup-form .honeypot { position: absolute; left: -10000px; }
.signup-form button { border: 0; cursor: pointer; }
.signup-form button:disabled { opacity: .65; cursor: default; }
.privacy-section { padding: 50px max(18px, calc((100vw - 1160px) / 2)); }
.privacy-section h2 { font-size: 30px; }
.privacy-section p { line-height: 1.6; font-size: 16px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}