/* =========================================================
   D-MIT-S — Stylesheet
   Design tokens, base, components, sections, responsive
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --radius-sm: 8px;
  --radius:    14px;
  --radius-lg: 22px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,.06);
  --shadow:    0 10px 30px -12px rgba(0,0,0,.45);
  --shadow-lg: 0 30px 60px -20px rgba(0,0,0,.55);

  --transition: 200ms cubic-bezier(.2,.8,.2,1);
  --ease-out:   cubic-bezier(.2,.8,.2,1);

  --container: 1200px;
}

/* Light theme (default) — frisch, hell, mit Brand-Grün */
:root,
[data-theme="light"] {
  --bg:           #f7f9f3;
  --bg-elev:      #ffffff;
  --bg-elev-2:    #eef4e4;
  --surface:      #ffffff;
  --border:       #e2e8d8;
  --border-soft:  #eef1e7;
  --text:         #101a14;
  --text-soft:    #2f3a32;
  --muted:        #6a7a6e;
  --accent:       #20825e;
  --accent-2:     #7de220;
  --accent-soft:  rgba(125, 226, 32, 0.16);
  --accent-tint:  rgba(32, 130, 94, 0.08);
  --success:      #16a34a;
  --danger:       #dc2626;
  --grad:         linear-gradient(135deg, #20825e 0%, #7de220 100%);
  --grad-soft:    linear-gradient(135deg, rgba(32,130,94,.10) 0%, rgba(125,226,32,.16) 100%);
  --glow:         radial-gradient(70% 70% at 50% 0%, rgba(125, 226, 32, 0.30), transparent 70%);
  --shadow-color: 130 30% 30%;
  --shadow:       0 12px 30px -14px hsl(var(--shadow-color) / 0.20);
  --shadow-lg:    0 30px 60px -20px hsl(var(--shadow-color) / 0.25);
}

/* Dark theme — softes Forest-Black statt pures Schwarz */
[data-theme="dark"] {
  --bg:           #0d1410;
  --bg-elev:      #141c17;
  --bg-elev-2:    #1a231d;
  --surface:      #141c17;
  --border:       #243029;
  --border-soft:  #1c2620;
  --text:         #e9f1ec;
  --text-soft:    #c5d2c9;
  --muted:        #8a9991;
  --accent:       #7de220;
  --accent-2:     #4ade80;
  --accent-soft:  rgba(125, 226, 32, 0.16);
  --accent-tint:  rgba(125, 226, 32, 0.08);
  --success:      #4ade80;
  --danger:       #f87171;
  --grad:         linear-gradient(135deg, #4ade80 0%, #7de220 100%);
  --grad-soft:    linear-gradient(135deg, rgba(74,222,128,.18) 0%, rgba(125,226,32,.20) 100%);
  --glow:         radial-gradient(70% 70% at 50% 0%, rgba(125, 226, 32, 0.18), transparent 70%);
  --shadow:       0 12px 30px -14px rgba(0,0,0,.55);
  --shadow-lg:    0 30px 60px -20px rgba(0,0,0,.65);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
ul { padding: 0; margin: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; line-height: 1.15; letter-spacing: -0.02em; font-weight: 700; }
p { margin: 0; }

::selection { background: var(--accent); color: #fff; }

.skip-link {
  position: absolute; left: -9999px; top: 0; padding: 12px 16px;
  background: var(--accent); color: #fff; z-index: 1000; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Typography helpers ---------- */
.muted { color: var(--muted); }
.micro { font-size: 13px; }
.gradient-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section { padding: 96px 0; position: relative; }
.section__head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section__eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 16px;
}
.section__title { font-size: clamp(28px, 4vw, 44px); margin-bottom: 16px; }
.section__lead  { color: var(--text-soft); font-size: 17px; max-width: 60ch; margin: 0 auto; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent);
  font-size: 13px; font-weight: 600;
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
}
.eyebrow .dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--success);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--success) 25%, transparent);
  animation: pulse 2s var(--ease-out) infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px color-mix(in srgb, var(--success) 25%, transparent); }
  50%      { box-shadow: 0 0 0 8px color-mix(in srgb, var(--success) 0%,  transparent); }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600; font-size: 15px; line-height: 1;
  transition: transform var(--transition), background var(--transition), color var(--transition), box-shadow var(--transition), border-color var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn--sm   { padding: 9px 16px; font-size: 14px; }
.btn--full { width: 100%; }
.btn--primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 8px 24px -10px color-mix(in srgb, var(--accent) 60%, transparent);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -10px color-mix(in srgb, var(--accent) 70%, transparent); }
.btn--ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn--ghost:hover { background: var(--bg-elev); border-color: color-mix(in srgb, var(--accent) 50%, var(--border)); }

/* ---------- Navigation ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  background: color-mix(in srgb, var(--bg) 75%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}
.nav.is-scrolled { border-color: var(--border-soft); }
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px; gap: 16px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 800; letter-spacing: -0.01em; color: var(--text);
}
.brand__text { font-size: 17px; }
.nav__links {
  display: none; gap: 32px; align-items: center;
}
.nav__links a {
  position: relative; color: var(--text-soft); font-size: 15px; font-weight: 500;
  transition: color var(--transition);
}
.nav__links a::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -6px; height: 2px;
  background: var(--grad); border-radius: 2px;
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--transition);
}
.nav__links a:hover { color: var(--text); }
.nav__links a:hover::after { transform: scaleX(1); }

.nav__actions { display: flex; align-items: center; gap: 10px; }
.nav__cta { display: none; }

.theme-toggle {
  width: 40px; height: 40px; display: inline-grid; place-items: center;
  border-radius: 12px; color: var(--text-soft);
  border: 1px solid var(--border); background: var(--bg-elev);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.theme-toggle:hover { color: var(--text); border-color: color-mix(in srgb, var(--accent) 50%, var(--border)); }
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="light"] .theme-toggle .icon-sun  { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

.nav__burger {
  width: 40px; height: 40px; display: inline-grid; place-items: center; gap: 4px;
  border-radius: 12px; border: 1px solid var(--border); background: var(--bg-elev);
}
.nav__burger span {
  display: block; width: 18px; height: 2px; background: var(--text); border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav__burger.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav__burger.is-open span:nth-child(2) { opacity: 0; }
.nav__burger.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.nav__mobile {
  display: flex; flex-direction: column; gap: 4px;
  padding: 16px 24px 24px;
  border-top: 1px solid var(--border-soft);
  background: var(--bg);
}
.nav__mobile a {
  padding: 12px 0; color: var(--text-soft);
  border-bottom: 1px solid var(--border-soft);
  font-size: 16px; font-weight: 500;
}
.nav__mobile a:last-child { border-bottom: 0; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 120px 0 96px;
  overflow: hidden;
  isolation: isolate;
}
.hero__bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.hero__bg::before {
  content: ''; position: absolute; inset: 0;
  background: var(--glow);
}
.blob {
  position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.55;
  animation: float 14s ease-in-out infinite;
}
.blob--1 {
  width: 520px; height: 520px;
  background: radial-gradient(circle, #7de220, transparent 60%);
  top: -160px; left: -100px;
}
.blob--2 {
  width: 560px; height: 560px;
  background: radial-gradient(circle, #20825e, transparent 60%);
  top: 60px; right: -140px;
  animation-delay: -6s;
}
[data-theme="dark"] .blob { opacity: 0.45; }
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(20px, 30px) scale(1.05); }
}
.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, color-mix(in srgb, var(--text) 6%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in srgb, var(--text) 6%, transparent) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero__inner { text-align: center; max-width: 880px; margin: 0 auto; }
.hero__title {
  font-size: clamp(36px, 6vw, 68px);
  margin: 24px 0;
  font-weight: 800;
}
.hero__lead {
  color: var(--text-soft);
  font-size: clamp(16px, 1.6vw, 19px);
  max-width: 64ch;
  margin: 0 auto;
}
.hero__cta {
  display: flex; flex-wrap: wrap; gap: 12px;
  justify-content: center; margin-top: 36px;
}
.hero__stats {
  display: flex; flex-wrap: wrap; gap: 40px;
  justify-content: center; margin-top: 64px;
}
.hero__stats li {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
}
.hero__stats strong {
  font-size: 32px; font-weight: 800;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__stats span { color: var(--muted); font-size: 14px; }

.hero__scroll {
  position: absolute; left: 50%; bottom: 24px; transform: translateX(-50%);
  width: 26px; height: 42px;
  border: 2px solid var(--border); border-radius: 999px;
  display: grid; place-items: start center; padding-top: 6px;
}
.hero__scroll span {
  width: 3px; height: 8px; border-radius: 2px; background: var(--accent);
  animation: scrollDot 1.6s var(--ease-out) infinite;
}
@keyframes scrollDot {
  0%   { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(14px); opacity: 0; }
}

/* ---------- Cards (shared) ---------- */
.card {
  position: relative;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
  box-shadow: var(--shadow);
}
.card__title { font-size: 20px; margin-bottom: 8px; }
.card__text  { color: var(--text-soft); font-size: 15px; }
.card__icon {
  width: 56px; height: 56px; border-radius: 16px;
  display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent);
  margin-bottom: 20px;
}

.card--gradient {
  background:
    linear-gradient(var(--bg-elev), var(--bg-elev)) padding-box,
    var(--grad) border-box;
  border: 1px solid transparent;
}

/* ---------- About ---------- */
.about__grid {
  display: grid; grid-template-columns: 1fr; gap: 40px; align-items: start;
}
.about__bullets {
  margin-top: 28px; display: grid; gap: 12px;
}
.about__bullets li {
  display: flex; align-items: flex-start; gap: 10px;
  color: var(--text-soft); font-size: 15px;
}
.about__bullets svg { color: var(--accent); flex-shrink: 0; margin-top: 3px; }

.card__head h3 { font-size: 22px; margin-top: 4px; }
.card__foot { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border-soft); display: grid; gap: 8px; }
.kv { display: flex; justify-content: space-between; gap: 16px; font-size: 14px; }
.kv span { color: var(--muted); }

.chip-list {
  display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px;
}
.chip {
  display: inline-flex; align-items: center;
  padding: 6px 12px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent);
  font-size: 13px; font-weight: 500;
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
}
.chip--ghost {
  background: transparent; color: var(--text-soft);
  border-color: var(--border);
}
.chip-list--sm .chip { padding: 4px 10px; font-size: 12px; }

/* ---------- Services ---------- */
.grid { display: grid; gap: 20px; }
.grid--services { grid-template-columns: 1fr; }

.card--service { padding: 28px; }
.card--service:hover .card__icon { transform: scale(1.06) rotate(-3deg); }
.card--service .card__icon { transition: transform var(--transition); }

/* ---------- Projects ---------- */
.grid--projects { grid-template-columns: 1fr; }
.card--project { display: flex; flex-direction: column; gap: 16px; }
.card__topline {
  display: flex; align-items: center; justify-content: space-between;
}
.badge {
  display: inline-block; padding: 4px 10px; border-radius: 6px;
  background: var(--accent-soft); color: var(--accent);
  font-size: 12px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
}
.card__index {
  font-family: var(--font-mono); color: var(--muted); font-size: 13px;
}
.card__meta { margin-top: auto; }
.card__result {
  display: flex; align-items: flex-start; gap: 8px;
  padding: 14px 16px;
  background: var(--bg-elev-2); border-radius: var(--radius);
  font-size: 14px; color: var(--text-soft);
  border: 1px solid var(--border-soft);
}
.card__result svg { color: var(--success); margin-top: 3px; flex-shrink: 0; }

/* ---------- Skills ---------- */
.grid--skills {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.skill {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 12px;
  padding: 28px 16px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}
.skill:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
  background: color-mix(in srgb, var(--bg-elev) 80%, var(--accent-soft));
}
.skill i {
  font-size: 44px;
  color: var(--text);
  transition: transform var(--transition);
}
.skill:hover i { transform: scale(1.08); }
.skill span { font-size: 14px; font-weight: 500; color: var(--text-soft); }

/* ---------- Contact ---------- */
.contact__grid {
  display: grid; grid-template-columns: 1fr; gap: 40px; align-items: start;
}
.contact__list {
  margin-top: 28px; display: grid; gap: 16px;
}
.contact__list li {
  display: flex; flex-direction: column; gap: 4px;
  padding: 16px;
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius);
}
.contact__label { font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); font-weight: 600; }
.contact__list a { color: var(--text); font-weight: 600; }
.contact__list a:hover { color: var(--accent); }
.contact__socials { display: inline-flex; gap: 10px; }
.contact__socials a {
  width: 38px; height: 38px; display: inline-grid; place-items: center;
  border-radius: 10px; border: 1px solid var(--border); color: var(--text-soft);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.contact__socials a:hover { color: var(--text); border-color: var(--accent); background: var(--accent-soft); }

.contact__form {
  display: grid; gap: 18px;
  padding: 32px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.field { display: grid; gap: 8px; }
.field label { font-size: 14px; font-weight: 500; color: var(--text-soft); }
.field input,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font: inherit; font-size: 15px;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.field input::placeholder,
.field textarea::placeholder { color: color-mix(in srgb, var(--muted) 80%, transparent); }
.field--check {
  display: flex; flex-direction: row; align-items: flex-start; gap: 10px;
  font-size: 14px; color: var(--text-soft);
}
.field--check input[type="checkbox"] {
  width: 18px; height: 18px; margin-top: 2px;
  accent-color: var(--accent);
}
.field--check a { color: var(--accent); text-decoration: underline; }

.hp { position: absolute; left: -9999px; top: -9999px; visibility: hidden; }

.form-status { font-size: 14px; margin: 0; min-height: 20px; }
.form-status.is-success { color: var(--success); }
.form-status.is-error   { color: var(--danger); }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border-soft);
  background: var(--bg-elev);
  padding: 56px 0 24px;
  margin-top: 80px;
}
.footer__inner {
  display: grid; gap: 28px; grid-template-columns: 1fr;
  padding-bottom: 28px; border-bottom: 1px solid var(--border-soft);
}
.footer__brand .brand { margin-bottom: 8px; }
.footer__nav,
.footer__legal {
  display: flex; flex-wrap: wrap; gap: 20px;
}
.footer__nav a,
.footer__legal a {
  color: var(--text-soft); font-size: 14px; font-weight: 500;
  transition: color var(--transition);
}
.footer__nav a:hover,
.footer__legal a:hover { color: var(--accent); }
.footer__bottom {
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
  padding-top: 24px;
}

/* ---------- Legal pages ---------- */
.legal { padding: 80px 0 40px; }
.legal__inner { max-width: 760px; margin: 0 auto; }
.legal h1 { margin-bottom: 32px; }
.legal h2 { font-size: 20px; margin: 36px 0 12px; }
.legal p { color: var(--text-soft); margin-bottom: 12px; }
.legal a { color: var(--accent); }
.legal a:hover { text-decoration: underline; }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0; transform: translateY(16px);
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
  transition-delay: calc(var(--i, 0) * 60ms);
}
.reveal.is-in { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0ms !important;
    transition-duration: 0ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (min-width: 640px) {
  .grid--services { grid-template-columns: repeat(2, 1fr); }
  .grid--projects { grid-template-columns: repeat(2, 1fr); }
  .grid--skills   { grid-template-columns: repeat(3, 1fr); }
  .nav__cta       { display: inline-flex; }
  .footer__inner  { grid-template-columns: 2fr 1fr 1fr; align-items: start; }
}

@media (min-width: 900px) {
  .nav__links     { display: flex; }
  .nav__burger    { display: none; }
  .about__grid    { grid-template-columns: 1.2fr 1fr; gap: 56px; }
  .contact__grid  { grid-template-columns: 1fr 1.1fr; gap: 56px; }
  .grid--skills   { grid-template-columns: repeat(4, 1fr); }
  .section        { padding: 120px 0; }
}

@media (min-width: 1100px) {
  .grid--skills   { grid-template-columns: repeat(6, 1fr); }
}