/* ============================================================
   style.css — quassel.io
   ============================================================ */

/* Bricolage Grotesque – lokal (variable font, wght 400–800) */
@font-face {
  font-family: 'Bricolage Grotesque';
  font-style: normal;
  font-weight: 400 800;
  font-stretch: 100%;
  font-display: swap;
  src: url('fonts/bricolage-grotesque-vietnamese.woff2') format('woff2');
  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB;
}
@font-face {
  font-family: 'Bricolage Grotesque';
  font-style: normal;
  font-weight: 400 800;
  font-stretch: 100%;
  font-display: swap;
  src: url('fonts/bricolage-grotesque-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Bricolage Grotesque';
  font-style: normal;
  font-weight: 400 800;
  font-stretch: 100%;
  font-display: swap;
  src: url('fonts/bricolage-grotesque-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* DM Sans – lokal (variable font, wght 300–500) */
@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 300 500;
  font-display: swap;
  src: url('fonts/dm-sans-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 300 500;
  font-display: swap;
  src: url('fonts/dm-sans-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) transparent;
}

/* ---- Design Tokens ---- */
:root {
  color-scheme: light dark;

  --bg:            #f4f7f5;
  --surface:       #ffffff;
  --border:        rgba(0, 0, 0, 0.08);
  --border-strong: rgba(0, 0, 0, 0.15);
  --text:          #172019;
  --text-2:        #3d4e3f;
  --muted:         #708472;
  --accent:           #2c7a50;
  --accent-hover:     #3d8a5e;
  --accent-solid:     #2c7a50;
  --accent-solid-hover: #3d8a5e;
  --accent-dim:       rgba(44, 122, 80, 0.08);
  --accent-border:    rgba(44, 122, 80, 0.2);
  --accent-glow:      rgba(44, 122, 80, 0.28);

  --header-bg:     rgba(244, 247, 245, 0.88);

  --scrollbar-thumb:       rgba(23, 32, 25, 0.22);
  --scrollbar-thumb-hover: rgba(23, 32, 25, 0.38);

  --font-display: 'Bricolage Grotesque', sans-serif;
  --font-body:    'DM Sans', sans-serif;

  --max-w:  540px;
  --r-sm:   6px;
  --r-md:   10px;
  --r-full: 999px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
}

/* ---- Dark Mode (Geräte-Präferenz) ---- */
@media (prefers-color-scheme: dark) {
  :root {
    --bg:            #0e0e0e;
    --surface:       #161616;
    --border:        rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.18);
    --text:          #ededed;
    --text-2:        #b8b8b8;
    --muted:         #808080;
    --accent:           #4cb87f;
    --accent-hover:     #5dc88e;
    --accent-solid:     #2c7a50;
    --accent-solid-hover: #36925f;
    --accent-dim:       rgba(76, 184, 127, 0.10);
    --accent-border:    rgba(76, 184, 127, 0.28);
    --accent-glow:      rgba(44, 122, 80, 0.45);

    --header-bg:     rgba(14, 14, 14, 0.78);

    --scrollbar-thumb:       rgba(255, 255, 255, 0.14);
    --scrollbar-thumb-hover: rgba(255, 255, 255, 0.28);

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.5), 0 1px 3px rgba(0,0,0,0.35);
  }
}

/* ---- Custom Scrollbar (WebKit) ---- */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border: 2px solid transparent;
  background-clip: padding-box;
  border-radius: var(--r-full);
  transition: background 0.15s;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
  background-clip: padding-box;
}

/* ---- Base ---- */
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }
a { color: inherit; }

/* ---- Container ---- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  height: 56px;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.3px;
  transition: opacity 0.15s;
}
.nav-logo:hover { opacity: 0.72; }
.nav-logo img { display: block; flex-shrink: 0; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding: 5rem 0 4.5rem;
  text-align: center;
  animation: fadeUp 0.5s ease both;
}

/* Status badge */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: var(--r-full);
  padding: 5px 13px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.01em;
  margin-bottom: 1.75rem;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  animation: pulse 2.4s ease-in-out infinite;
}

.status-dot.down {
  background: #e74c3c;
  animation: none;
}

.status-dot.paused {
  background: #e0a32e;
  animation: none;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.85); }
}

/* Headline */
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(1.95rem, 5.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.18;
  margin-bottom: 1.1rem;
  color: var(--text);
}
.hero-title em {
  font-style: normal;
  color: var(--accent);
}

/* Description */
.hero-desc {
  font-size: 15.5px;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 2.25rem;
}

/* Feature chips */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  justify-content: center;
  margin-bottom: 2.5rem;
  list-style: none;
  padding: 0;
}

.chip {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-2);
  border-radius: var(--r-full);
  padding: 5px 13px;
  font-size: 13px;
  display: inline-block;
}
.chip.accent {
  background: var(--accent-dim);
  border-color: var(--accent-border);
  color: var(--accent);
  font-weight: 500;
}

/* Registration note */
.reg-note {
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.6;
  margin-top: 0.9rem;
}

/* Buttons */
.cta { display: flex; flex-direction: column; gap: 9px; }

.btn-primary {
  display: block;
  background: var(--accent-solid);
  color: #fff;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.2px;
  text-align: center;
  padding: 14px;
  border-radius: var(--r-md);
  box-shadow: var(--shadow-sm);
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
}
.btn-primary:hover  { background: var(--accent-solid-hover); box-shadow: 0 4px 14px var(--accent-glow); }
.btn-primary:active { transform: scale(0.98); }

.btn-secondary {
  display: block;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  text-align: center;
  padding: 12px;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: color 0.15s, border-color 0.15s;
}
.btn-secondary:hover { color: var(--text); border-color: var(--border-strong); }

/* Address preview */
.address-preview {
  display: inline-block;
  margin-top: 1.75rem;
  font-size: 13px;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 8px 16px;
  font-family: 'Fira Mono', 'Courier New', monospace;
  letter-spacing: 0.03em;
}

/* Space invite */
.space-invite {
  margin-top: 1rem;
  font-size: 14px;
  color: var(--muted);
}
.space-invite a {
  color: var(--accent);
  text-decoration: none;
  font-family: 'Fira Mono', 'Courier New', monospace;
  font-size: 13px;
}
.space-invite a:hover { text-decoration: underline; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.75rem 0;
  text-align: center;
  margin-top: auto;
}

.site-footer p {
  font-size: 13px;
  color: var(--muted);
  line-height: 2.2;
}

.site-footer a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s;
}
.site-footer a:hover { color: var(--accent); }

/* ============================================================
   LEGAL PAGES
   ============================================================ */
.legal-page {
  padding-top: 3.5rem;
  padding-bottom: 6rem;
  animation: fadeUp 0.4s ease both;
}

.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13.5px;
  color: var(--muted);
  text-decoration: none;
  margin-bottom: 2.25rem;
  transition: color 0.15s;
}
.legal-back:hover { color: var(--accent); }
.legal-back svg { display: block; }

.legal-title {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 5vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.8px;
  margin-bottom: 0.4rem;
  color: var(--text);
}

.legal-meta {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.legal-content h2 {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  margin-top: 2.25rem;
  margin-bottom: 0.65rem;
}

.legal-content p,
.legal-content address {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.78;
  margin-bottom: 0.65rem;
  font-style: normal;
}

.legal-content ul {
  margin: 0.5rem 0 0.75rem 1.2rem;
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.78;
}
.legal-content li { margin-bottom: 0.35rem; }

.legal-content a { color: var(--accent); text-decoration: none; }
.legal-content a:hover { text-decoration: underline; }

/* Callout box */
.callout {
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: var(--r-md);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
}
.callout p {
  font-size: 14.5px;
  color: var(--accent);
  margin: 0;
}

/* Language divider on Impressum */
.lang-divider {
  border: none;
  border-top: 1px dashed var(--border);
  margin: 2.5rem 0;
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 600px) {
  .hero        { padding: 3rem 0 3rem; }
  .hero-title  { font-size: 1.85rem; }
  .hero-desc   { font-size: 15px; }
  .legal-page  { padding-top: 2.5rem; padding-bottom: 4rem; }
}

/* ============================================================
   ACCESSIBILITY
   ============================================================ */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}