/* design stuffs */
:root{
  /* fonts & text */
  --font-sans: 'Fredoka', sans-serif;
  --text: #f5f5f5;

  /* bg gradient */
  --bg-grad-1: #140041;
  --bg-grad-2: #4d1a8f;
  --bg-grad-3: #35a5d3;

  /* glass surfaces */
  --glass-bg: rgba(255,255,255,0.07);
  --glass-bg-soft: rgba(255,255,255,0.02);
  --glass-card: rgba(255,255,255,0.10);
  --glass-card-hover: rgba(255,255,255,0.12);
  --glass-border: rgba(255,255,255,0.15);
  --glass-border-strong: rgba(255,255,255,0.18);
  --glass-border-hover: rgba(255,255,255,0.20);
  --chip-bg: rgba(255,255,255,0.07);
  --chip-border: rgba(255,255,255,0.25);

  /* Buttons */
  --btn-primary-bg: rgba(77, 26, 143, 0.2);
  --btn-secondary-bg: rgba(245, 245, 245, 0.1);
  --btn-tertiary-bg: rgba(245, 245, 245, 0.01);

  /* radius */
  --radius-xxl: 24px;
  --radius-xl: 18px;
  --radius-lg: 14px;
  --radius-md: 12px;
  --radius-pill: 999px;

  /* blur */
  --blur-strong: 12px;
  --blur-soft: 6px;
  --blur-menu: 8px;

  /* Shadows */
  --shadow-1: 0 8px 22px rgba(0,0,0,0.25);
  --shadow-1-hover: 0 12px 28px rgba(0,0,0,0.28);

  /* Z-index */
  --z-bg: -1;
  --z-drawer: 1500;
  --z-menu: 2000;
  --z-overlay: 9999;

  /* Roadmap accents */
  --accent-now: #42eeee;
  --accent-soon: #2c66e2;
  --accent-later: #5c37e1;

  /* Timeline line */
  --timeline-line: linear-gradient(180deg, rgba(255,255,255,0.35), rgba(255,255,255,0.08));
}

/* 404 alt theme */
:root[data-theme="rose"]{
  --bg-grad-1: #2f1b46;
  --bg-grad-2: #652b6c;
  --bg-grad-3: #cc385c;
  --btn-primary-bg: rgba(101, 43, 108, 0.25);
}

/* basic */
html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  background: transparent;
  color: var(--text);
  overflow-x: hidden;
}

#background-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  z-index: var(--z-bg);
  background: linear-gradient(45deg, var(--bg-grad-1), var(--bg-grad-2), var(--bg-grad-3));
}

/* hero section */
.hero {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.hero-content {
  padding: 2rem;
  background-color: var(--glass-bg-soft);
  backdrop-filter: blur(var(--blur-soft));
  -webkit-backdrop-filter: blur(var(--blur-soft));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xxl);
}

.hero h1 { font-size: 4rem; margin-bottom: 0.5rem; }
.hero p  { font-size: 1.25rem; margin-bottom: 1.5rem; }

/* buttons */
.btn {
  padding: 0.75rem;
  border-radius: var(--radius-pill);
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.3s ease, opacity .2s ease;
  font-family: var(--font-sans);
  color: #fff;
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--blur-strong));
  -webkit-backdrop-filter: blur(var(--blur-strong));
}

.hero-buttons .btn {
  margin: 0 0.5rem;
  padding: 0.75rem 1.75rem;
}

.primary  { background: var(--btn-primary-bg); }
.secondary{ background: var(--btn-secondary-bg); }
.tertiary { background: var(--btn-tertiary-bg); }

.primary:hover,
.secondary:hover,
.tertiary:hover { opacity: 0.9; }

/* layout elements */
main { padding: 4rem 1rem; }

.glass-box {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xxl);
  padding: 2rem;
  margin: 2rem auto;
  width: 90%;
  max-width: 900px;
  backdrop-filter: blur(var(--blur-strong));
  -webkit-backdrop-filter: blur(var(--blur-strong));
}

footer { text-align: center; padding: 2rem; margin-bottom: 2rem; }
.footer-links a { margin: 0 1rem; color: var(--text); text-decoration: none; }

/* popped bubbles counter */
.marble-counter{
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--glass-bg);
  backdrop-filter: blur(5px);
  padding: 8px 14px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text);
  opacity: 0;
  transition: opacity 0.5s;
  pointer-events: none;
  z-index: var(--z-overlay);
}

/* nav menu */
.menu-btn{
  position: fixed;
  top: 22px; right: 22px;
  width: 48px; height: 48px;
  background: var(--glass-bg);
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(var(--blur-menu));
  -webkit-backdrop-filter: blur(var(--blur-menu));
  border-radius: var(--radius-md);
  cursor: pointer;
  z-index: var(--z-menu);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: transform .3s;
}
.menu-btn span{
  display:block;
  width:22px; height:2px;
  margin:3px 0;
  background:#fff;
  transition:all .3s;
}
.menu-btn.active span:nth-child(1){ transform:translateY(8px)  rotate(45deg); }
.menu-btn.active span:nth-child(2){ opacity: 0; }
.menu-btn.active span:nth-child(3){ transform:translateY(-8px) rotate(-45deg); }

.side-nav{
  position: fixed;
  top:0; right:-260px;
  width: 240px; height: auto;
  background: var(--glass-bg-soft);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xxl);
  padding: 90px 20px;
  margin: 12px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 16px;
  z-index: var(--z-drawer);
  transition: right .4s cubic-bezier(.4,0,.2,1);
  backdrop-filter: blur(var(--blur-strong));
  -webkit-backdrop-filter: blur(var(--blur-strong));
}
.side-nav.open{ right:0; }

.side-nav .btn {
  display: block;
  width: 100%;
  text-align: center;
  padding-left: 1rem;
  padding-right: 1rem;
  box-sizing: border-box;
}

/* cookie banner */
#cookie-banner {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-overlay);
  max-width: 400px;
  text-align: center;
  padding: 1.5rem;
  display: none;
  animation: slideInUp 0.5s ease forwards;
  font-family: var(--font-sans);
}
#cookie-banner.hide { animation: slideOutDown 0.5s ease forwards; }

@keyframes slideInUp {
  from { transform: translateX(-50%) translateY(30px); opacity: 0; }
  to   { transform: translateX(-50%) translateY(0);    opacity: 1; }
}
@keyframes slideOutDown {
  from { transform: translateX(-50%) translateY(0);    opacity: 1; }
  to   { transform: translateX(-50%) translateY(30px); opacity: 0; }
}

/* roadmap styling*/
.roadmap{
  position: relative;
  display: grid;
  gap: 20px;
  margin-top: 1.25rem;
  padding-left: 14px;
}
.roadmap::before{
  content:"";
  position: absolute;
  left: 24px; top: 0; bottom: 0;
  width: 2px;
  background: var(--timeline-line);
  pointer-events: none;
}
.roadmap-item{
  display: grid;
  grid-template-columns: 48px 1fr;
  align-items: start;
  gap: 12px;
  transform: translateY(6px);
  animation: floatIn .6s ease both;
}
.roadmap-item:nth-child(2){ animation-delay: .06s; }
.roadmap-item:nth-child(3){ animation-delay: .12s; }

.roadmap-dot{
  width: 16px; height: 16px;
  margin: 18px 16px 0 16px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 0 6px rgba(255,255,255,0.08), 0 4px 10px rgba(0,0,0,0.25);
}
.roadmap-now  .roadmap-dot{ background: var(--accent-now); }
.roadmap-soon .roadmap-dot{ background: var(--accent-soon); }
.roadmap-later .roadmap-dot{ background: var(--accent-later); }

.roadmap-card{
  background: var(--glass-card);
  border: 1px solid var(--glass-border-strong);
  border-radius: var(--radius-xl);
  padding: 16px 18px;
  box-shadow: var(--shadow-1);
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.roadmap-card:hover{
  transform: translateY(-2px);
  background: var(--glass-card-hover);
  border-color: var(--glass-border-hover);
}
.roadmap-badge{
  display: inline-block;
  font-size: .8rem;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--chip-border);
  background: var(--chip-bg);
  margin-bottom: 8px;
}

@keyframes floatIn{
  from{ opacity:0; transform: translateY(10px); }
  to  { opacity:1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce){
  .roadmap-item{ animation: none; transform: none; }
}

/* title page feature cards */
.fcard{
  position: relative;
  background: var(--glass-card);
  border: 1px solid var(--glass-border-strong);
  border-radius: var(--radius-xl);
  padding: 18px 18px 16px;
  min-height: 150px;
  box-shadow: var(--shadow-1);
  transform-style: preserve-3d;
  transition: box-shadow .25s ease, background .25s ease, border-color .25s ease;
  will-change: transform;
}
.fcard:hover{
  background: var(--glass-card-hover);
  border-color: var(--glass-border-hover);
  box-shadow: var(--shadow-1-hover);
}
.fcard:after{
  content:"";
  position:absolute;
  inset:0;
  border-radius: inherit;
  background: radial-gradient(1200px 200px at -20% -20%, rgba(255,255,255,0.18), transparent 40%);
  pointer-events: none;
  opacity: .7;
  mix-blend-mode: screen;
}
.fcard-icon{
  width: 44px; height: 44px;
  border-radius: var(--radius-md);
  display: grid; place-items: center;
  font-size: 22px;
  background: rgba(255,255,255,0.16);
  border: 1px solid rgba(255,255,255,0.24);
  margin-bottom: 10px;
  transform: translateZ(30px);
}
.fcard-icon svg { width: 22px; height: 22px; stroke-linecap: round; stroke-linejoin: round; }
.fcard h3{ margin: 0 0 6px; font-size: 1.25rem; transform: translateZ(20px); }
.fcard p { margin: 0 0 12px; color: rgba(255,255,255,0.92); transform: translateZ(12px); }

/* Buttons inside cards dont clip into text with this */
.fcard .btn { display: inline-block; margin-top: 0.75rem; }

.features-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 1.25rem;
}
@media (min-width: 680px){
  .features-grid{ grid-template-columns: repeat(2, minmax(0,1fr)); }
  .fcard--wide{ grid-column: 1 / -1; }
}

/* landing page - about */
#about { text-align: center; max-width: 900px; }
.about-icon {
  width: 56px; height: 56px;
  margin: 0 auto 12px;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  display: grid; place-items: center;
}
.about-icon svg { width: 26px; height: 26px; stroke-linecap: round; stroke-linejoin: round; }
#about p { margin: 1rem 0; line-height: 1.55; font-size: 1.05rem; color: rgba(255,255,255,0.95); }

.github-btn {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(var(--blur-strong));
  -webkit-backdrop-filter: blur(var(--blur-strong));
  color: #fff;
  text-decoration: none;
  transition: background 0.25s ease, border-color 0.25s ease;
}
.github-btn:hover { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.3); }

/* legal*/
#legal-impressum { margin-top: 2.5rem; }
#legal-impressum h2 { margin-bottom: 1rem; }
#legal-impressum h4 { margin-top: 1.5rem; margin-bottom: 0.25rem; }
#legal-impressum p  { line-height: 1.6; }

#legal-impressum .contact-lines {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
@media (min-width: 600px) {
  #legal-impressum .contact-lines { flex-direction: row; gap: 2rem; }
}

/* link stuff */
a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: inherit; 
  text-decoration: none; 
  cursor: pointer;  
}