/* Klangraum — public-facing pages CSS.
 *
 * Brand: teal (#33CCCC) — matches the existing klangraum-musikzentrum.de
 * visual identity that parents and students already know. The admin console
 * uses amber (#E8932A) via admin-brand.css — DO NOT unify them.
 *
 * Shared by:
 *   - Shell (src/views/public-shell.js): nav, footer, hero, cards, CTA, forms
 *   - Legacy inquiry form (public/anfragen.html) — stepper / selection cards
 *   - Cancellation form (src/routes/public/kuendigen.js)
 *   - Unified login (/login)
 */

@font-face {
  font-family: 'Nevis';
  src: url('/static/fonts/nevis.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  /* ── Brand tokens (from live klangraum-musikzentrum.de) ── */
  --kr-teal:       #33CCCC;
  --kr-teal-dark:  #29A3A3;
  --kr-teal-light: #E8FAFA;
  --kr-black:      #231F20;
  --kr-white:      #FFFFFF;
  --kr-grey-1:     #F4F3F1;
  --kr-grey-2:     #E8E6E3;
  --kr-grey-3:     #9B9790;

  /* ── Semantic aliases used by the public shell and pages ── */
  --bg:        var(--kr-grey-1);
  --surface:   var(--kr-white);
  --border:    var(--kr-grey-2);
  --text:      var(--kr-black);
  --muted:     var(--kr-grey-3);
  --accent:    var(--kr-teal);
  --accent-hi: var(--kr-teal-dark);
  --accent-tint: var(--kr-teal-light);
  --danger:    #b00020;
  --radius:    10px;
  --shadow:    0 1px 2px rgba(0,0,0,.04), 0 4px 12px rgba(35,31,32,.06);

  --font-heading: 'Nevis', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-body:    system-ui, -apple-system, 'Segoe UI', Roboto, Oxygen, Ubuntu,
                  Cantarell, 'Helvetica Neue', Arial, sans-serif;

  --nav-h: 64px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:      #161516;
    --surface: #1f1d1e;
    --border:  #2f2c2d;
    --text:    #f0eeea;
    --muted:   #a9a49c;
    --accent-tint: #133;
    --shadow:  0 1px 2px rgba(0,0,0,.4), 0 6px 16px rgba(0,0,0,.4);
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
h1, h2, h3, h4, .kr-font-heading {
  font-family: var(--font-heading);
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--text);
}
a { color: var(--accent-hi); text-decoration: none; }
a:hover { text-decoration: underline; }
.muted { color: var(--muted); }

/* ------------------------------------------------------------------ */
/* Top nav                                                             */
/* ------------------------------------------------------------------ */
.kr-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  height: var(--nav-h);
}
.kr-nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.kr-nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.kr-nav-logo img { display: block; height: 36px; width: auto; }
.kr-nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.kr-nav-link {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--text);
  font-weight: 500;
  font-size: 15px;
  text-decoration: none;
  transition: background .15s, color .15s;
}
.kr-nav-link:hover { background: var(--accent-tint); color: var(--accent-hi); text-decoration: none; }
.kr-nav-link.is-active { color: var(--accent-hi); }
.kr-nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.kr-nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
}

@media (max-width: 760px) {
  .kr-nav-toggle { display: flex; }
  .kr-nav-links {
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    gap: 2px;
    display: none;
    box-shadow: var(--shadow);
  }
  .kr-nav-links.is-open { display: flex; }
  .kr-nav-link { padding: 12px 14px; border-radius: 8px; }
}

/* ------------------------------------------------------------------ */
/* Footer                                                              */
/* ------------------------------------------------------------------ */
.kr-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  margin-top: auto;
  padding: 32px 24px 20px;
  color: var(--muted);
  font-size: 14px;
}
.kr-footer a { color: inherit; text-decoration: underline; text-decoration-color: var(--border); }
.kr-footer a:hover { color: var(--accent-hi); }
.kr-footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.kr-footer-col strong { color: var(--text); }
.kr-footer-copy {
  max-width: 1120px;
  margin: 24px auto 0;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 13px;
}
@media (max-width: 760px) {
  .kr-footer-inner { grid-template-columns: 1fr; }
}

/* ------------------------------------------------------------------ */
/* Main container                                                      */
/* ------------------------------------------------------------------ */
.kr-main {
  flex: 1;
  width: 100%;
}
.kr-container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 48px 24px;
}
.kr-container-narrow {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px;
}

/* ------------------------------------------------------------------ */
/* Buttons                                                             */
/* ------------------------------------------------------------------ */
.kr-btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background .15s, color .15s, border-color .15s, transform .1s;
}
.kr-btn:hover { text-decoration: none; transform: translateY(-1px); }
.kr-btn:active { transform: translateY(0); }
.kr-btn-teal {
  background: var(--kr-teal);
  color: var(--kr-black);
  border-color: var(--kr-teal);
}
.kr-btn-teal:hover { background: var(--kr-teal-dark); border-color: var(--kr-teal-dark); color: var(--kr-white); }
.kr-btn-outline {
  background: transparent;
  color: var(--kr-white);
  border-color: var(--kr-white);
}
.kr-btn-outline:hover { background: var(--kr-white); color: var(--kr-black); }
.kr-btn-ghost {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}
.kr-btn-ghost:hover { background: var(--accent-tint); color: var(--accent-hi); border-color: var(--accent-tint); }
.kr-btn-sm { padding: 8px 16px; font-size: 14px; }
.kr-btn[disabled] { opacity: .6; cursor: not-allowed; transform: none; }

/* ------------------------------------------------------------------ */
/* Homepage — hero                                                     */
/* ------------------------------------------------------------------ */
.kr-hero {
  background: var(--kr-black);
  color: var(--kr-white);
  position: relative;
  overflow: hidden;
}
.kr-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(51,204,204,.18), transparent 55%),
    radial-gradient(ellipse at 80% 70%, rgba(51,204,204,.10), transparent 60%);
  pointer-events: none;
}
.kr-hero-inner {
  position: relative;
  max-width: 1120px;
  margin: 0 auto;
  padding: 96px 24px;
  text-align: center;
}
.kr-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1.1;
  margin: 0 0 16px;
  color: var(--kr-white);
}
.kr-hero p {
  font-size: clamp(16px, 2.2vw, 20px);
  color: var(--kr-grey-2);
  margin: 0 auto 32px;
  max-width: 640px;
}
.kr-hero-ctas {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ------------------------------------------------------------------ */
/* Homepage — section heading                                          */
/* ------------------------------------------------------------------ */
.kr-section {
  padding: 72px 24px;
}
.kr-section-inner { max-width: 1120px; margin: 0 auto; }
.kr-section-title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 40px);
  text-align: center;
  margin: 0 0 8px;
}
.kr-section-lead {
  text-align: center;
  color: var(--muted);
  margin: 0 auto 40px;
  max-width: 640px;
}
.kr-section-tint { background: var(--kr-grey-1); }
.kr-section-dark {
  background: var(--kr-black);
  color: var(--kr-white);
}
.kr-section-dark .kr-section-title { color: var(--kr-white); }
.kr-section-dark p { color: var(--kr-grey-2); }

/* ------------------------------------------------------------------ */
/* Instrument cards                                                    */
/* ------------------------------------------------------------------ */
.kr-instruments {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (min-width: 640px)  { .kr-instruments { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .kr-instruments { grid-template-columns: repeat(6, 1fr); } }
.kr-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 18px;
  text-align: center;
  transition: transform .15s, border-color .15s, box-shadow .15s;
}
.kr-card:hover {
  border-left-color: var(--kr-teal);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.kr-card-symbol {
  font-size: 40px;
  color: var(--kr-teal);
  line-height: 1;
  margin-bottom: 12px;
  font-family: var(--font-heading);
}
.kr-card-title {
  font-family: var(--font-heading);
  font-size: 20px;
  margin: 0 0 6px;
  color: var(--text);
}
.kr-card-body {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
}

/* ------------------------------------------------------------------ */
/* Why-Klangraum 3-up                                                  */
/* ------------------------------------------------------------------ */
.kr-why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 720px) { .kr-why-grid { grid-template-columns: repeat(3, 1fr); } }
.kr-why-item { text-align: center; padding: 8px; }
.kr-why-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--kr-teal-light);
  color: var(--kr-teal-dark);
  font-size: 28px;
  margin-bottom: 16px;
  font-family: var(--font-heading);
}
.kr-why-item h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  margin: 0 0 6px;
}
.kr-why-item p { color: var(--muted); margin: 0; font-size: 15px; }

/* ------------------------------------------------------------------ */
/* Fees table (/unterricht)                                            */
/* ------------------------------------------------------------------ */
.kr-fees-block { margin-bottom: 48px; }
.kr-fees-block h2 {
  font-family: var(--font-heading);
  font-size: 24px;
  margin: 0 0 12px;
  color: var(--text);
}
.kr-fees-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.kr-fees-table th,
.kr-fees-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
}
.kr-fees-table th {
  background: var(--kr-grey-1);
  font-weight: 600;
  color: var(--text);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.kr-fees-table tbody tr:last-child td { border-bottom: none; }
.kr-fees-table td.num { text-align: right; font-variant-numeric: tabular-nums; }
.kr-fees-note {
  margin-top: 24px;
  color: var(--muted);
  font-size: 14px;
  font-style: italic;
}

/* ------------------------------------------------------------------ */
/* Legal pages (/datenschutz, /impressum)                              */
/* ------------------------------------------------------------------ */
.kr-legal { max-width: 720px; margin: 0 auto; padding: 48px 24px; }
.kr-legal h1 {
  font-family: var(--font-heading);
  font-size: 32px;
  margin: 0 0 24px;
}
.kr-legal h2 {
  font-family: var(--font-heading);
  font-size: 20px;
  margin: 32px 0 8px;
  color: var(--text);
}
.kr-legal p, .kr-legal li { color: var(--text); font-size: 15px; }
.kr-legal ul { padding-left: 20px; }

/* ------------------------------------------------------------------ */
/* Login card                                                          */
/* ------------------------------------------------------------------ */
.kr-login-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
}
.kr-login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
  width: 100%;
  max-width: 400px;
}
.kr-login-logo { text-align: center; margin-bottom: 24px; }
.kr-login-logo img { height: 56px; width: auto; }
.kr-login-card h1 {
  font-family: var(--font-heading);
  font-size: 22px;
  text-align: center;
  margin: 0 0 24px;
}
.kr-login-card .kr-field { margin-bottom: 16px; }
.kr-login-card label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 6px;
}
.kr-login-card input {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  background: var(--surface);
  color: var(--text);
}
.kr-login-card input:focus {
  outline: none;
  border-color: var(--kr-teal);
  box-shadow: 0 0 0 3px rgba(51,204,204,.2);
}
.kr-login-card .kr-login-submit {
  width: 100%;
  margin-top: 8px;
}
.kr-login-error {
  background: #fff1f1;
  border: 1px solid #f4c7c7;
  color: var(--danger);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 16px;
}

/* ------------------------------------------------------------------ */
/* Cookie banner                                                       */
/* ------------------------------------------------------------------ */
.kr-cookie-banner {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 100;
  background: var(--kr-black);
  color: var(--kr-white);
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: 0 10px 32px rgba(0,0,0,.25);
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
  max-width: 720px;
  margin: 0 auto;
}
.kr-cookie-text { flex: 1 1 280px; font-size: 14px; line-height: 1.5; }
.kr-cookie-banner[hidden] { display: none; }

/* ------------------------------------------------------------------ */
/* Kontakt page                                                        */
/* ------------------------------------------------------------------ */
.kr-contact { display: grid; gap: 16px; }
.kr-contact-row { display: flex; gap: 12px; align-items: baseline; }
.kr-contact-label {
  font-weight: 600;
  min-width: 120px;
  color: var(--muted);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.kr-contact-value a { color: var(--accent-hi); }
.kr-contact-map {
  margin-top: 24px;
  padding: 16px;
  background: var(--kr-grey-1);
  border-radius: var(--radius);
}

/* ------------------------------------------------------------------ */
/* Legacy selectors kept for anfragen.html / kuendigen.js              */
/* These existed before Day 8B — they now inherit teal via the vars.   */
/* ------------------------------------------------------------------ */
.public-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
}
.header-inner { max-width: 680px; margin: 0 auto; }
.public-header .brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  font-family: var(--font-heading);
}

.inquiry-container {
  max-width: 680px;
  width: 100%;
  margin: 32px auto;
  padding: 0 24px;
  flex: 1;
}

.stepper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: 32px;
}
.step {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 999px;
  transition: all .2s;
}
.step.active {
  background: var(--kr-teal);
  color: var(--kr-black);
  font-weight: 600;
}
.step.done { color: var(--accent-hi); font-weight: 600; }
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--border);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}
.step.active .step-num { background: rgba(35,31,32,.18); color: var(--kr-black); }
.step.done .step-num { background: var(--accent-hi); color: #fff; }
.step-line { width: 32px; height: 2px; background: var(--border); flex-shrink: 0; }

.form-step { display: none; }
.form-step.active { display: block; animation: fadeIn .25s ease; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.form-step h2 { margin: 0 0 4px; font-size: 22px; }
.step-subtitle { color: var(--muted); margin: 0 0 20px; font-size: 15px; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}
.selection-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 20px 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  cursor: pointer;
  transition: all .15s;
  font: inherit;
  color: var(--text);
}
.selection-card:hover { border-color: var(--kr-teal); background: var(--accent-tint); }
.selection-card.selected {
  border-color: var(--kr-teal);
  background: var(--accent-tint);
  box-shadow: 0 0 0 3px rgba(51,204,204,.25);
}
.card-icon { font-size: 32px; line-height: 1; color: var(--kr-teal-dark); }
.card-label { font-size: 15px; font-weight: 600; }

.loading-msg, .error-msg {
  text-align: center;
  color: var(--muted);
  font-style: italic;
  grid-column: 1 / -1;
}
.error-msg { color: var(--danger); }

.pf-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 12px;
}
.pf-group { margin-bottom: 12px; }
.pf-group label {
  display: block;
  margin-bottom: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
}
.pf-group input,
.pf-group select,
.pf-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  font-size: 15px;
  background: var(--surface);
  color: var(--text);
  transition: border-color .15s;
}
.pf-group input:focus,
.pf-group select:focus,
.pf-group textarea:focus {
  outline: none;
  border-color: var(--kr-teal);
  box-shadow: 0 0 0 3px rgba(51,204,204,.2);
}

.form-nav { display: flex; gap: 12px; margin-top: 20px; }
.btn {
  display: inline-block;
  padding: 10px 22px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all .15s;
}
.btn:hover { background: var(--kr-grey-1); text-decoration: none; }
.btn-primary {
  background: var(--kr-teal);
  color: var(--kr-black);
  border-color: var(--kr-teal);
}
.btn-primary:hover { background: var(--kr-teal-dark); border-color: var(--kr-teal-dark); color: var(--kr-white); }
.btn-primary:disabled { opacity: .6; cursor: not-allowed; }
.btn-secondary {
  background: var(--surface);
  color: var(--accent-hi);
  border-color: var(--kr-teal);
}
.btn-secondary:hover { background: var(--accent-tint); }

.form-error {
  background: #fff1f1;
  color: var(--danger);
  border: 1px solid #f4c7c7;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 12px;
}

.confirmation-page { text-align: center; padding-top: 48px; }
.confirmation-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--accent-tint);
  color: var(--accent-hi);
  font-size: 36px;
  font-weight: bold;
  margin-bottom: 20px;
}
.confirmation-page h1 { font-size: 26px; margin: 0 0 12px; }
.confirmation-page p { max-width: 480px; margin: 8px auto; }

.public-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 24px;
  text-align: center;
  margin-top: auto;
}
.public-footer p { margin: 4px 0; font-size: 14px; }
.privacy-note {
  margin-top: 12px !important;
  font-size: 12px !important;
  color: var(--muted);
}

/* ------------------------------------------------------------------ */
/* Small-screen tweaks for legacy inquiry/cancellation forms.          */
/* ------------------------------------------------------------------ */
@media (max-width: 600px) {
  .pf-row { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr 1fr; }
  .stepper { gap: 0; }
  .step { padding: 6px 8px; font-size: 12px; }
  .step-line { width: 16px; }
  .inquiry-container { margin-top: 20px; }
}