:root {
  --bg: #0a0a0f;
  --bg-soft: #111119;
  --fg: #f2f2f5;
  --muted: #9a9aac;
  --accent: #6c5ce7;
  --accent-2: #00d2ff;
  --line: rgba(255, 255, 255, 0.08);
  --radius: 14px;
  --maxw: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: auto; /* Lenis übernimmt */
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: "Inter", system-ui, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

h1,
h2,
h3 {
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

/* ---------- Cursor ---------- */
.cursor,
.cursor-dot {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 9999;
  border-radius: 50%;
  mix-blend-mode: difference;
}
.cursor {
  width: 38px;
  height: 38px;
  border: 1.5px solid #fff;
  transform: translate(-50%, -50%);
  transition: width 0.25s var(--ease), height 0.25s var(--ease),
    background 0.25s var(--ease);
}
.cursor-dot {
  width: 6px;
  height: 6px;
  background: #fff;
  transform: translate(-50%, -50%);
}
.cursor.is-hover {
  width: 64px;
  height: 64px;
  background: rgba(255, 255, 255, 0.12);
}
@media (hover: none) {
  .cursor,
  .cursor-dot {
    display: none;
  }
}

/* ---------- Scroll progress ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  z-index: 9998;
}

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px clamp(20px, 5vw, 60px);
  backdrop-filter: blur(10px);
  background: rgba(10, 10, 15, 0.4);
  border-bottom: 1px solid transparent;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}
.nav.is-scrolled {
  background: rgba(10, 10, 15, 0.75);
  border-bottom: 1px solid var(--line);
}
.nav__logo {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.4rem;
}
.nav__logo span {
  color: var(--accent);
}
.nav__links {
  display: flex;
  gap: 30px;
  font-size: 0.95rem;
}
.nav__links a {
  color: var(--muted);
  position: relative;
  transition: color 0.25s var(--ease);
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 1.5px;
  background: var(--accent);
  transition: width 0.25s var(--ease);
}
.nav__links a:hover {
  color: var(--fg);
}
.nav__links a:hover::after {
  width: 100%;
}
.nav__toggle {
  display: none;
  background: none;
  border: none;
  color: var(--fg);
  font-size: 1.4rem;
  cursor: pointer;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 clamp(20px, 5vw, 60px);
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(
      60% 60% at 70% 20%,
      rgba(108, 92, 231, 0.25),
      transparent 60%
    ),
    radial-gradient(50% 50% at 20% 80%, rgba(0, 210, 255, 0.18), transparent 60%);
  filter: blur(20px);
  animation: drift 18s ease-in-out infinite alternate;
}
@keyframes drift {
  to {
    transform: translate3d(40px, -30px, 0) scale(1.1);
  }
}
.hero__content {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  width: 100%;
}
.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.3em;
  font-size: 0.8rem;
  color: var(--accent-2);
  margin-bottom: 24px;
}
.hero__title {
  font-size: clamp(3.5rem, 12vw, 9rem);
  line-height: 0.95;
}
.hero__title .line {
  display: block;
  overflow: hidden;
}
.hero__title .line--accent {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__sub {
  max-width: 620px;
  margin-top: 30px;
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.2rem);
}
.hero__cta {
  display: flex;
  gap: 16px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.btn {
  padding: 14px 28px;
  border-radius: 40px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
    background 0.25s var(--ease);
}
.btn--primary {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #0a0a0f;
}
.btn--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 40px rgba(108, 92, 231, 0.4);
}
.btn--ghost {
  border: 1px solid var(--line);
  color: var(--fg);
}
.btn--ghost:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}
.hero__scroll {
  position: absolute;
  bottom: 34px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}
.hero__scroll span {
  width: 1px;
  height: 46px;
  background: linear-gradient(var(--accent), transparent);
  animation: scrollPulse 2s var(--ease) infinite;
}
@keyframes scrollPulse {
  0% {
    transform: scaleY(0);
    transform-origin: top;
  }
  50% {
    transform: scaleY(1);
    transform-origin: top;
  }
  51% {
    transform-origin: bottom;
  }
  100% {
    transform: scaleY(0);
    transform-origin: bottom;
  }
}

/* ---------- Sections ---------- */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(80px, 12vh, 160px) clamp(20px, 5vw, 60px);
}
.section__head {
  display: flex;
  align-items: baseline;
  gap: 20px;
  margin-bottom: 60px;
}
.section__index {
  font-family: "Space Grotesk", sans-serif;
  color: var(--accent);
  font-size: 0.9rem;
}
.section__head h2 {
  font-size: clamp(2rem, 5vw, 3.4rem);
}

/* About */
.about__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 50px;
}
.about__lead p {
  font-size: 1.15rem;
  color: var(--fg);
  margin-bottom: 22px;
}
.about__lead p:last-child {
  color: var(--muted);
}
.about__facts {
  list-style: none;
  display: grid;
  gap: 14px;
}
.about__facts li {
  display: flex;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}
.about__facts strong {
  color: var(--muted);
  font-weight: 500;
}
.about__facts span {
  font-family: "Space Grotesk", sans-serif;
}

/* Skills */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.skill h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
}
.skill__bar {
  height: 6px;
  border-radius: 6px;
  background: var(--bg-soft);
  overflow: hidden;
}
.skill__bar i {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 12px rgba(108, 92, 231, 0.35);
}

/* Work */
.work__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.card {
  display: block;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-soft);
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease),
    background 0.35s var(--ease);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    120% 120% at 0% 0%,
    rgba(108, 92, 231, 0.15),
    transparent 50%
  );
  opacity: 0;
  transition: opacity 0.35s var(--ease);
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
}
.card:hover::before {
  opacity: 1;
}
.card__tag {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent-2);
}
.card h3 {
  font-size: 1.5rem;
  margin: 12px 0 10px;
}
.card p {
  color: var(--muted);
  font-size: 0.98rem;
}
.card__more {
  display: inline-block;
  margin-top: 18px;
  color: var(--fg);
  font-size: 0.9rem;
}

/* Contact */
.contact__lead {
  font-size: clamp(1.4rem, 3.5vw, 2.4rem);
  font-family: "Space Grotesk", sans-serif;
  max-width: 720px;
  line-height: 1.25;
}
.contact__links {
  display: flex;
  gap: 30px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.contact__links a {
  font-size: 1.1rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 4px;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.contact__links a:hover {
  border-color: var(--accent);
  color: var(--accent-2);
}

/* Footer */
.footer {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding: 30px clamp(20px, 5vw, 60px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
  max-width: var(--maxw);
  margin: 0 auto;
  width: 100%;
}

/* ---------- Reveal ---------- */
[data-reveal],
[data-reveal-line] {
  will-change: transform, opacity;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .nav__links {
    display: none;
  }
  .nav__toggle {
    display: block;
  }
  .about__grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .skills__grid {
    grid-template-columns: 1fr 1fr;
  }
  .work__grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 520px) {
  .skills__grid {
    grid-template-columns: 1fr;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .hero__bg,
  .hero__scroll span {
    animation: none;
  }
}