:root {
  --frame: #f8f8f6;
  --card: #efefed;
  --text: #242424;
  --muted: #878782;
  --line: rgba(20, 20, 20, 0.08);
  --green: #34c759;
  --linkedin: #0072b1;
  --radius-xl: 26px;
  --radius-lg: 18px;
  --shadow: 0 30px 80px rgba(25, 24, 20, 0.18);
  --section-padding: clamp(30px, 5vw, 48px);
  --section-gap: 16px;
  --heading-size: clamp(32px, 4vw, 46px);
  --body-size: 16px;
  --body-line: 1.7;
  --kicker-size: 12px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--frame);
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.page-shell {
  width: min(100% - 48px, 1180px);
  margin: 0 auto;
  padding: 32px 0 72px;
}

.phone-frame {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-areas:
    "topbar topbar"
    "intro intro"
    "case projects"
    "contact contact";
  gap: var(--section-gap);
  padding: 18px;
  border-radius: var(--radius-xl);
  background: var(--frame);
  box-shadow: var(--shadow);
}

.topbar {
  grid-area: topbar;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 4px 4px 0;
}

.brand,
.status,
.menu-button {
  display: inline-flex;
  align-items: center;
}

.brand {
  min-width: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 15px;
  border-radius: 999px;
  background: #fff;
  font-size: 14px;
  white-space: nowrap;
}

.site-nav .nav-contact {
  display: none;
}

.site-nav .nav-resume {
  background: #191919;
  color: #fff;
}

.status {
  gap: 8px;
  padding: 7px 13px;
  border-radius: 999px;
  font-size: 13px;
  color: var(--green);
  background: #fff;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.05);
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--green);
}

.menu-button {
  display: none;
  justify-self: end;
  border: 0;
  background: transparent;
  color: #111;
  cursor: pointer;
}

.soft-card,
.video-card,
.contact-card {
  border-radius: var(--radius-lg);
}

.soft-card {
  padding: var(--section-padding);
  background: var(--frame);
}

.intro-layout {
  grid-area: intro;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 380px);
  grid-template-areas: "hero video";
  gap: var(--section-gap);
  align-items: stretch;
}

.hero-card {
  grid-area: hero;
  min-height: 620px;
  display: flex;
  flex-direction: column;
}

.video-card {
  grid-area: video;
  justify-self: end;
  width: min(100%, 380px);
  overflow: hidden;
  aspect-ratio: 9 / 16;
  align-self: stretch;
  background: #111;
}

.video-card iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.mini-profile {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  overflow: hidden;
  border-radius: 999px;
  background: #ddd;
}

.avatar img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.name,
.role {
  margin: 0;
}

.name {
  font-weight: 700;
  font-size: 16px;
  line-height: 1.15;
}

.role {
  font-size: 12px;
  line-height: 1.25;
}

.role,
.hero-copy p,
.case-study-card p,
.contact-card p {
  color: var(--muted);
}

.hero-copy {
  margin-top: clamp(54px, 7vw, 92px);
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: 520px;
  font-size: var(--heading-size);
  line-height: 1.05;
  font-weight: 550;
}

.hero-copy p:not(.section-kicker) {
  max-width: 470px;
  margin: 18px 0 0;
  font-size: var(--body-size);
  line-height: var(--body-line);
}

.pill-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 30px;
}

.pill-grid span {
  min-height: 54px;
  display: flex;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid rgba(20, 20, 20, 0.08);
  border-left: 4px solid rgba(20, 20, 20, 0.28);
  border-radius: 12px;
  background: rgba(255,255,255,0.58);
  color: #343434;
  font-size: 14px;
  font-weight: 650;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
  padding-top: 42px;
}

.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 180ms ease, opacity 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.primary {
  background: #191919;
  color: #fff;
}

.secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.72);
  color: #222;
}

.resume {
  background: #fff;
  color: #191919;
}

.download-icon {
  width: 14px;
  height: 14px;
  flex: 0 0 14px;
  object-fit: contain;
}

.nav-resume .download-icon {
  filter: invert(1);
}

.linkedin {
  background: var(--linkedin);
  color: #fff;
}

.case-study-card {
  grid-area: case;
  min-height: 460px;
}

#projekte {
  grid-area: projects;
}

.case-study-card h2,
.section-heading h2,
.contact-card h2 {
  margin: 0;
  font-size: var(--heading-size);
  line-height: 1.05;
  font-weight: 550;
}

.case-study-card > p {
  margin: 22px 0 0;
  max-width: 620px;
  font-size: var(--body-size);
  line-height: var(--body-line);
}

.case-list {
  display: grid;
  gap: 14px;
  max-width: 680px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: var(--body-size);
  line-height: var(--body-line);
}

.case-list li {
  position: relative;
  padding-left: 26px;
}

.case-list li::before {
  content: "✓";
  position: absolute;
  top: 0.1em;
  left: 0;
  width: 17px;
  height: 17px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: rgba(52, 199, 89, 0.14);
  color: #248a3d;
  font-size: 11px;
  font-weight: 800;
}

.case-list strong {
  color: var(--text);
  font-weight: 650;
}

.case-study-image {
  display: block;
  width: 100%;
  margin-top: 32px;
  border-radius: 14px;
  object-fit: cover;
  background: #fff;
}

p.section-kicker {
  margin: 0 0 10px;
  font-size: var(--kicker-size);
  font-weight: 800;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.usp-image {
  display: block;
  width: min(100%, 820px);
  margin-inline: auto;
  margin-top: 28px;
  border-radius: 14px;
  background: #fff;
}

.certificate-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 18px;
}

.certificate-preview {
  display: block;
  width: 100%;
  min-height: 420px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

.contact-card {
  grid-area: contact;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: var(--section-gap);
  align-items: end;
  padding: var(--section-padding);
  background: var(--frame);
  color: var(--text);
}

.contact-card > p:not(.section-kicker) {
  margin: 18px 0 0;
  max-width: 620px;
  font-size: var(--body-size);
  line-height: var(--body-line);
}

.contact-card .section-kicker,
.contact-card h2,
.contact-card > p,
.copy-feedback {
  grid-column: 1;
}

.contact-actions {
  grid-column: 2;
  grid-row: 1 / span 4;
  display: grid;
  gap: 10px;
  margin-top: 0;
}

.full {
  width: 100%;
}

.contact-card .secondary {
  background: rgba(255, 255, 255, 0.72);
  border-color: var(--line);
  color: #222;
}

.copy-feedback {
  min-height: 24px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 900px) {
  .page-shell {
    width: 100%;
    padding: 0;
  }

  .phone-frame {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    gap: 0;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
  }

  .intro-layout {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  .topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "brand button"
      "nav nav";
    gap: 14px;
    padding: 18px;
    background: rgba(248, 248, 246, 0.94);
    backdrop-filter: blur(16px);
  }

  .brand {
    grid-area: brand;
  }

  .brand .avatar {
    width: 42px;
    height: 42px;
    flex-basis: 42px;
  }

  .menu-button {
    grid-area: button;
    display: inline-flex;
  }

  .status {
    display: none;
  }

  .site-nav {
    grid-area: nav;
    display: none;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding-top: 4px;
  }

  .site-nav.is-open {
    display: grid;
  }

  .site-nav a {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 58px;
    padding: 14px 12px;
    border-radius: 18px;
    font-size: 18px;
  }

  .site-nav .nav-contact {
    display: flex;
    grid-column: 1 / -1;
    background: #191919;
    color: #fff;
  }

  .site-nav .nav-resume {
    grid-column: 1 / -1;
  }

  .soft-card,
  .video-card,
  .contact-card {
    border-radius: 0;
  }

  .soft-card {
    padding: 32px 20px;
  }

  .hero-card {
    min-height: 520px;
  }

  .hero-copy {
    margin-top: 46px;
  }

  h1 {
    font-size: var(--heading-size);
  }

  .hero-actions {
    display: grid;
    margin-top: 28px;
    padding-top: 0;
  }

  .button {
    width: 100%;
  }

  .video-card {
    width: 100%;
    justify-self: stretch;
    align-self: stretch;
    aspect-ratio: 9 / 16;
  }

  .case-study-card,
  #projekte {
    min-height: auto;
  }

  .case-study-image {
    width: calc(100% + 40px);
    max-width: none;
    margin-inline: -20px;
    border-radius: 0;
  }

  .usp-image {
    width: calc(100% + 40px);
    max-width: none;
    margin-inline: -20px;
    border-radius: 0;
  }

  .certificate-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .certificate-preview {
    min-height: 360px;
    width: 100%;
    margin-inline: 0;
    border-radius: 14px;
  }

  .contact-card {
    display: block;
    padding: 32px 20px;
  }

  .contact-actions {
    margin-top: 28px;
  }
}

@media (max-width: 420px) {
  .topbar {
    padding: 16px;
  }

  .brand {
    font-size: 17px;
  }

  .site-nav a {
    min-height: 54px;
    font-size: 16px;
  }

  .hero-card {
    min-height: 500px;
  }
}