/* ============================================================
   S.D.E. – Andre Weber
   Designsystem, für sde-kuerten.de
   ============================================================ */

:root {
  --bg: #f3f1ec;
  --surface: #faf9f6;
  --surface-2: #ece9e1;
  --fg: #1c1d1b;
  --muted: #5e615c;
  --subtle: #62665e;
  --accent: #3d5a73;
  --accent-fg: #f3f1ec;
  --border: #d9d4c8;
  --ring: #3d5a73;

  --font-display: "Instrument Serif", "Iowan Old Style", Georgia, serif;
  --font-sans: "Source Sans 3", "Source Sans Pro", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-border: 0 0 0 1px #1c1d1b0f, 0 1px 2px -1px #1c1d1b0f, 0 2px 4px 0 #1c1d1b0a;
  --shadow-hover: 0 0 0 1px #1c1d1b1a, 0 1px 2px -1px #1c1d1b14, 0 2px 4px 0 #1c1d1b0f;

  --motion-quick: 0.15s;
  --motion-fast: 0.25s;
  --ease-smooth: cubic-bezier(0.22, 1, 0.36, 1);

  --container: 72rem;
}

/* ---------- Basis ---------- */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.625;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

h1, h2, h3, p, figure { margin: 0; }

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--fg);
  color: var(--bg);
  border-radius: 0 0 var(--radius-sm) 0;
  text-decoration: none;
}
.skip-link:focus { left: 0; }

/* ---------- Layout ---------- */

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1rem;
}
@media (min-width: 640px) {
  .container { padding-inline: 1.5rem; }
}

.section {
  border-top: 1px solid var(--border);
  padding-block: 4rem;
}
@media (min-width: 768px) {
  .section { padding-block: 5.5rem; }
}

/* ---------- Typo ---------- */

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--subtle);
}

.h1 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.01em;
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  line-height: 1.1;
}

.h2 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.01em;
  font-size: clamp(1.8rem, 3.5vw, 2.25rem);
  line-height: 1.15;
}

.h3 {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.375;
}

.lead {
  font-size: 1.0625rem;
  color: var(--muted);
  max-width: 60ch;
}

.section-head { margin-bottom: 2.5rem; }
.section-head .eyebrow { margin-bottom: 0.75rem; }
.section-head .lead { margin-top: 1rem; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 4.5rem;
}

.brand {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
  text-decoration: none;
}
.brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.brand-logo {
  flex: none;
  width: 2.75rem;
  height: 2.75rem;
}
.footer-brand .brand-logo {
  display: block;
  margin-bottom: 0.5rem;
}
.brand-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  line-height: 1;
  letter-spacing: -0.01em;
}
.brand-sub {
  margin-top: 0.25rem;
  font-size: 11px;
  line-height: 1.375;
  color: var(--muted);
}

.main-nav { margin-left: auto; }
.main-nav ul {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.main-nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.9375rem;
  padding: 0.5rem 0;
  transition: color var(--motion-quick) ease;
}
.main-nav a:hover { color: var(--fg); }

.header-actions { display: flex; gap: 0.5rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 500;
  min-height: 2.75rem;
  padding: 0.5rem 1.125rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--motion-quick) ease, border-color var(--motion-quick) ease, color var(--motion-quick) ease;
}
.btn-primary { background: var(--accent); color: var(--accent-fg); }
.btn-primary:hover { background: color-mix(in srgb, var(--accent) 88%, black); }
.btn-ghost {
  background: transparent;
  color: var(--fg);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--fg); }

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.nav-toggle svg { width: 1.25rem; height: 1.25rem; }

@media (max-width: 899px) {
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.25rem 1.25rem;
  }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 0.25rem; }
  .main-nav a { display: block; padding: 0.625rem 0; font-size: 1.0625rem; }
  .nav-toggle { display: inline-flex; }
  .header-actions .btn-ghost { display: none; }
}

/* ---------- Hero ---------- */

.hero { padding-block: 4rem 4.5rem; }
@media (min-width: 768px) { .hero { padding-block: 5.5rem 6rem; } }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
  border-radius: 999px;
  padding: 0.375rem 0.875rem;
  margin-bottom: 1.5rem;
}

.hero .lead { margin-top: 1.25rem; }

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.price-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}
.price-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  box-shadow: var(--shadow-border);
}
.price-chip .label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--subtle);
}
.price-chip .value {
  font-family: var(--font-mono);
  font-size: 1.0625rem;
  font-weight: 500;
  margin-top: 0.125rem;
}
.price-chips-note {
  width: 100%;
  font-size: 0.8125rem;
  color: var(--muted);
}

.hero-image {
  margin-top: 3rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-border);
}
.hero-image img { width: 100%; height: auto; aspect-ratio: 16/9; object-fit: cover; }

/* ---------- Karten ---------- */

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
@media (min-width: 768px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
}
.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
@media (min-width: 768px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: 1fr 1fr 1fr; }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-border);
  overflow: hidden;
  transition: box-shadow var(--motion-fast) var(--ease-smooth), transform var(--motion-fast) var(--ease-smooth);
}
.card:hover { box-shadow: var(--shadow-hover); }

.card-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.card-body { padding: 1.25rem 1.25rem 1.5rem; }
.card-body .h3 { margin-bottom: 0.5rem; }
.card-body p { color: var(--muted); font-size: 0.9375rem; }

/* Preise */

.price-card { padding: 1.5rem; }
.price-card .label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--subtle);
}
.price-card h3 { margin: 0.5rem 0 0.75rem; }
.price-card p { color: var(--muted); font-size: 0.9375rem; }

.note-box {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  margin-top: 1.25rem;
}
.note-box .label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--subtle);
  margin-bottom: 0.5rem;
}
.note-box p { color: var(--muted); font-size: 0.9375rem; }

/* ---------- Kostenschätzung ---------- */

.calc {
  display: grid;
  gap: 2rem;
}
@media (min-width: 900px) {
  .calc { grid-template-columns: 1.2fr 1fr; align-items: start; }
}

.calc-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-border);
  padding: 1.5rem;
  display: grid;
  gap: 1.5rem;
}

.field label {
  display: block;
  font-weight: 500;
  font-size: 0.9375rem;
  margin-bottom: 0.5rem;
}
.field-label {
  display: block;
  font-weight: 500;
  font-size: 0.9375rem;
  margin-bottom: 0.5rem;
}

.field .hint,
.form-card > .hint {
  font-size: 0.8125rem;
  color: var(--subtle);
  margin-top: 0.375rem;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
  height: 2rem;
}

/* Orts-Chips (Radio-Gruppe statt Select) */
.city-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}
.city-chips.is-off {
  opacity: 0.45;
}
.city-chips.is-off .city-chip {
  pointer-events: none;
}
.city-chip {
  position: relative;
  cursor: pointer;
}
.city-chip input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.city-chip span {
  display: inline-block;
  padding: 0.4375rem 0.875rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.875rem;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.city-chip:hover span {
  border-color: var(--accent);
  color: var(--fg);
}
.city-chip input:checked + span {
  background: var(--fg);
  border-color: var(--fg);
  color: var(--bg);
}
.city-chip input:focus-visible + span {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

select,
input[type="text"],
input[type="tel"],
textarea {
  font: inherit;
  color: var(--fg);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.625rem 0.75rem;
  min-height: 2.75rem;
  width: 100%;
}
select:focus, input:focus, textarea:focus {
  outline: 2px solid var(--ring);
  outline-offset: 0;
  border-color: transparent;
}

.check-row {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9375rem;
  color: var(--muted);
}
.check-row input {
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.2rem;
  accent-color: var(--accent);
}

.value-line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.9375rem;
}
.value-line .val {
  font-family: var(--font-mono);
  font-weight: 500;
}

.calc-result {
  background: var(--fg);
  color: var(--bg);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}
.calc-result .label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--bg) 55%, transparent);
}
.calc-total {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 500;
  margin-top: 0.375rem;
}
.calc-breakdown {
  margin-top: 1.25rem;
  display: grid;
  gap: 0.5rem;
  border-top: 1px solid color-mix(in srgb, var(--bg) 18%, transparent);
  padding-top: 1.25rem;
  font-size: 0.9375rem;
}
.calc-breakdown .row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}
.calc-breakdown .row .v { font-family: var(--font-mono); }
.calc-note {
  margin-top: 1.25rem;
  font-size: 0.8125rem;
  color: color-mix(in srgb, var(--bg) 65%, transparent);
}
.calc-result .btn { margin-top: 1.5rem; width: 100%; }

/* ---------- Über mich ---------- */

.about-grid {
  display: grid;
  gap: 2.5rem;
}
@media (min-width: 900px) {
  .about-grid { grid-template-columns: 1.2fr 1fr; gap: 3rem; }
}
.about-text p + p { margin-top: 1rem; }
.about-text p { color: var(--muted); }

.timeline { display: grid; gap: 0; }
.timeline-item {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--border);
}
.timeline-item:last-child { border-bottom: 1px solid var(--border); }
.timeline-item .when {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--subtle);
  padding-top: 0.125rem;
}
.timeline-item h3 { font-size: 1rem; }
.timeline-item p { font-size: 0.875rem; color: var(--muted); margin-top: 0.125rem; }

.process {
  margin-top: 3rem;
  display: grid;
  gap: 1.25rem;
}
@media (min-width: 768px) { .process { grid-template-columns: repeat(4, 1fr); } }
.process-step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}
.process-step .num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
}
.process-step h3 { font-size: 1rem; margin: 0.375rem 0 0.375rem; }
.process-step p { font-size: 0.875rem; color: var(--muted); }

/* ---------- FAQ ---------- */

.faq { max-width: 46rem; }
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:first-child { border-top: 1px solid var(--border); }

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: none;
  border: 0;
  font: inherit;
  font-size: 1rem;
  font-weight: 500;
  color: var(--fg);
  padding: 1.25rem 0;
  cursor: pointer;
  text-align: left;
}
.faq-q:hover { color: var(--accent); }
.faq-q .chev {
  width: 1rem;
  height: 1rem;
  flex: none;
  transition: transform var(--motion-fast) var(--ease-smooth);
  color: var(--muted);
}
.faq-q[aria-expanded="true"] .chev { transform: rotate(180deg); }

.faq-a {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--motion-fast) var(--ease-smooth);
}
.faq-a-inner {
  padding-bottom: 1.25rem;
  color: var(--muted);
  font-size: 0.9375rem;
}
.faq-a ul {
  margin: 0.5rem 0 0;
  padding-left: 1.125rem;
}

/* ---------- Kontakt ---------- */

.contact-grid {
  display: grid;
  gap: 2rem;
}
@media (min-width: 900px) {
  .contact-grid { grid-template-columns: 1fr 1.2fr; gap: 3rem; }
}

.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-border);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
}
.contact-card .label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--subtle);
}
.contact-card .value {
  display: block;
  margin-top: 0.25rem;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--fg);
  text-decoration: none;
  word-break: break-all;
}
.contact-card a.value:hover { color: var(--accent); }

.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-border);
  padding: 1.5rem;
}
.form-card .field { margin-bottom: 1rem; }

.estimate-preview {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--muted);
  white-space: pre-wrap;
  margin-bottom: 1rem;
}

.form-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-2) 60%, transparent);
}

.footer-grid {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding-block: 3rem;
}
@media (min-width: 768px) {
  .footer-grid { flex-direction: row; justify-content: space-between; }
}
.footer-brand { max-width: 18rem; }
.footer-brand .brand-name { font-size: 1.25rem; }
.footer-brand p { font-size: 0.875rem; color: var(--muted); margin-top: 0.5rem; }
.footer-brand .legal { font-size: 0.75rem; color: var(--subtle); margin-top: 0.75rem; }

.footer-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2rem;
}
@media (min-width: 640px) { .footer-cols { grid-template-columns: repeat(3, auto); gap: 3rem; } }

.footer-col h4 {
  font-size: 0.875rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
}
.footer-col a, .footer-col p {
  display: block;
  font-size: 0.875rem;
  color: var(--muted);
  text-decoration: none;
  line-height: 1.9;
}
.footer-col a:hover { color: var(--fg); }

.footer-bottom { border-top: 1px solid var(--border); }
.footer-bottom p {
  padding-block: 1rem;
  font-size: 0.75rem;
  color: var(--subtle);
}

/* ---------- Rechtsseiten ---------- */

.prose { max-width: 46rem; }
.prose h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.5rem;
  margin: 2rem 0 0.75rem;
}
.prose p { color: var(--muted); margin-bottom: 0.75rem; }
.prose address { font-style: normal; color: var(--fg); }
.prose ul { color: var(--muted); padding-left: 1.125rem; margin-bottom: 0.75rem; }

/* ---------- Motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}
.section-flush { border-top: none; }

.prose .note-box { margin-top: 2rem; }
.prose .note-box h2 { margin-top: 0; font-size: 1.25rem; }
.prose .note-box p:last-child { margin-bottom: 0; }