:root {
  --void: #07040f;
  --void-2: #120a26;
  --panel: rgba(18, 10, 38, 0.72);
  --neon-purple: #b026ff;
  --neon-purple-dim: #7c3aed;
  --neon-magenta: #ff2fd0;
  --neon-cyan: #2de2ff;
  --neon-green: #39ff8f;
  --neon-red: #ff3860;
  --text: #ede7ff;
  --text-dim: #9a8fc4;
  --border: rgba(176, 38, 255, 0.4);
  --font-display: "Orbitron", sans-serif;
  --font-body: "JetBrains Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--void);
  color: var(--text);
  font-family: var(--font-body);
  position: relative;
  overflow-x: hidden;
}

/* --- atmosphere --- */

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(176, 38, 255, 0.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(176, 38, 255, 0.14) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 90%);
  animation: grid-drift 18s linear infinite;
}

@keyframes grid-drift {
  from { background-position: 0 0, 0 0; }
  to { background-position: 42px 42px, 42px 42px; }
}

.bg-glow {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(600px 400px at 15% -5%, rgba(176, 38, 255, 0.35), transparent 65%),
    radial-gradient(500px 350px at 100% 10%, rgba(255, 47, 208, 0.22), transparent 65%),
    radial-gradient(700px 500px at 50% 110%, rgba(45, 226, 255, 0.12), transparent 70%);
  animation: glow-breathe 7s ease-in-out infinite;
}

@keyframes glow-breathe {
  0%, 100% { opacity: 0.85; }
  50% { opacity: 1; }
}

.container {
  position: relative;
  z-index: 1;
  max-width: 680px;
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
}

/* --- typography --- */

h1, h2 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text);
  text-shadow:
    0 0 6px rgba(176, 38, 255, 0.9),
    0 0 18px rgba(176, 38, 255, 0.55),
    0 0 40px rgba(255, 47, 208, 0.25);
}

h1 {
  font-size: 1.9rem;
  font-weight: 900;
  margin: 0 0 1.75rem;
  animation: flicker-in 1.1s ease-out both;
}

h2 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 1rem;
}

@keyframes flicker-in {
  0% { opacity: 0; text-shadow: none; }
  8% { opacity: 1; }
  10% { opacity: 0.3; }
  12% { opacity: 1; text-shadow: 0 0 6px rgba(176, 38, 255, 0.9), 0 0 18px rgba(176, 38, 255, 0.55); }
  20% { opacity: 0.5; }
  24% {
    opacity: 1;
    text-shadow:
      0 0 6px rgba(176, 38, 255, 0.9),
      0 0 18px rgba(176, 38, 255, 0.55),
      0 0 40px rgba(255, 47, 208, 0.25);
  }
}

a {
  color: var(--neon-cyan);
  text-decoration-color: rgba(45, 226, 255, 0.4);
  text-underline-offset: 3px;
  transition: text-shadow 0.15s ease, text-decoration-color 0.15s ease;
}

a:hover {
  text-shadow: 0 0 10px rgba(45, 226, 255, 0.8);
  text-decoration-color: var(--neon-cyan);
}

/* --- day track --- */

.day-track {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  list-style: none;
  padding: 0;
  margin: 0 0 2rem;
  animation: rise-in 0.6s ease-out both;
  animation-delay: 0.15s;
}

.day-badge {
  width: 2.75rem;
  height: 2.75rem;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  border: 1px solid var(--border);
  background: var(--void-2);
  color: var(--text-dim);
  transition: transform 0.15s ease;
}

.day-done {
  background: linear-gradient(145deg, var(--neon-purple-dim), var(--neon-magenta));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 0 12px rgba(176, 38, 255, 0.55);
}

.day-open {
  background: var(--void-2);
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  box-shadow: 0 0 10px rgba(45, 226, 255, 0.6), inset 0 0 8px rgba(45, 226, 255, 0.25);
  animation: pulse-ring 1.8s ease-in-out infinite;
}

@keyframes pulse-ring {
  0%, 100% { box-shadow: 0 0 10px rgba(45, 226, 255, 0.6), inset 0 0 8px rgba(45, 226, 255, 0.25); }
  50% { box-shadow: 0 0 20px rgba(45, 226, 255, 0.95), inset 0 0 12px rgba(45, 226, 255, 0.4); }
}

.day-waiting {
  color: var(--text-dim);
  border-style: dashed;
}

.day-locked {
  opacity: 0.35;
}

/* --- panels --- */

@keyframes rise-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel {
  position: relative;
  background: var(--panel);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.75rem;
  box-shadow: 0 0 30px rgba(176, 38, 255, 0.12), 0 0 0 1px rgba(176, 38, 255, 0.08) inset;
  animation: rise-in 0.6s ease-out both;
  animation-delay: 0.25s;
}

.panel::before,
.panel::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid var(--neon-cyan);
  opacity: 0.8;
}

.panel::before {
  top: -1px;
  left: -1px;
  border-right: none;
  border-bottom: none;
}

.panel::after {
  bottom: -1px;
  right: -1px;
  border-left: none;
  border-top: none;
}

.panel-complete { border-color: var(--neon-green); }
.panel-complete::before, .panel-complete::after { border-color: var(--neon-green); }

.panel-waiting { border-color: var(--text-dim); }
.panel-waiting::before, .panel-waiting::after { border-color: var(--text-dim); }

.reward-panel {
  text-align: center;
  padding: 3rem 1.5rem;
}

.reward-label {
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  margin: 0 0 0.5rem;
}

.reward-letter {
  font-family: var(--font-display);
  font-size: 6rem;
  font-weight: 900;
  line-height: 1;
  color: #fff;
  text-transform: uppercase;
  margin: 0.5rem 0 1.25rem;
  animation:
    reward-pop 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) both,
    letter-glow-pulse 2.4s ease-in-out 0.6s infinite;
}

.reward-sub {
  color: var(--text-dim);
  margin-bottom: 1.75rem;
}

@keyframes reward-pop {
  0% { transform: scale(0.3); opacity: 0; }
  60% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes letter-glow-pulse {
  0%, 100% {
    text-shadow:
      0 0 20px rgba(176, 38, 255, 1),
      0 0 40px rgba(255, 47, 208, 0.8),
      0 0 80px rgba(45, 226, 255, 0.5);
  }
  50% {
    text-shadow:
      0 0 32px rgba(176, 38, 255, 1),
      0 0 64px rgba(255, 47, 208, 0.9),
      0 0 110px rgba(45, 226, 255, 0.7);
  }
}

.prompt {
  font-size: 1.02rem;
  line-height: 1.65;
  overflow-wrap: break-word;
}

.collected-letters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.25rem 0;
}

.collected-letter {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  text-transform: uppercase;
  color: #fff;
  background: linear-gradient(145deg, var(--neon-purple-dim), var(--neon-magenta));
  border-radius: 3px;
  box-shadow: 0 0 12px rgba(176, 38, 255, 0.45);
}

/* --- intro banner --- */

.intro {
  margin-bottom: 2rem;
  padding: 1rem 1.25rem;
  animation: rise-in 0.6s ease-out both;
}

.intro-toggle {
  font-family: var(--font-display);
  font-size: 0.8rem;
}

.intro[open] .intro-toggle {
  margin-bottom: 1rem;
}

.intro-heading {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.intro-text {
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  overflow-wrap: break-word;
}

.intro-media img,
.intro-media video {
  width: 50%;
  margin: 0 auto;
  border-radius: 4px;
  border: 1px solid var(--border);
  box-shadow: 0 0 30px rgba(176, 38, 255, 0.2);
  display: block;
}

/* --- forms --- */

form { margin-top: 1.25rem; }

label {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--neon-cyan);
  margin-bottom: 0.4rem;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--void);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  margin-bottom: 1rem;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

input[type="text"]:focus,
input[type="password"]:focus {
  outline: none;
  border-color: var(--neon-cyan);
  box-shadow: 0 0 0 1px var(--neon-cyan), 0 0 16px rgba(45, 226, 255, 0.5);
}

button, .button {
  display: inline-block;
  background: linear-gradient(135deg, var(--neon-purple-dim), var(--neon-magenta));
  color: #fff;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 3px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 0 18px rgba(176, 38, 255, 0.45);
  transition: transform 0.12s ease, box-shadow 0.2s ease;
}

button:hover, .button:hover {
  box-shadow: 0 0 28px rgba(176, 38, 255, 0.75), 0 0 40px rgba(255, 47, 208, 0.35);
  transform: translateY(-1px);
}

button:active, .button:active {
  transform: translateY(0);
}

.link-button {
  background: none;
  box-shadow: none;
  color: var(--text-dim);
  text-transform: none;
  letter-spacing: normal;
  font-family: var(--font-body);
  font-weight: 400;
  padding: 0;
  text-decoration: underline;
  text-decoration-color: rgba(154, 143, 196, 0.4);
}

.link-button:hover {
  box-shadow: none;
  transform: none;
  color: var(--neon-cyan);
}

.test-badge {
  display: inline-block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--neon-green);
  border: 1px dashed var(--neon-green);
  border-radius: 3px;
  padding: 0.3rem 0.6rem;
  margin-bottom: 1.25rem;
}

.push-block {
  margin-top: 2rem;
}

.push-note {
  color: var(--text-dim);
  font-size: 0.78rem;
  margin-top: 0.6rem;
  line-height: 1.5;
}

.logout-form { margin-top: 2.5rem; }

details {
  margin: 1rem 0;
  border: 1px dashed var(--border);
  border-radius: 3px;
  padding: 0.6rem 0.9rem;
}

details summary {
  cursor: pointer;
  color: var(--neon-cyan);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

details[open] summary { margin-bottom: 0.5rem; }

/* --- flash messages --- */

.flashes {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  animation: rise-in 0.4s ease-out both;
}

.flash {
  padding: 0.8rem 1rem;
  border-radius: 3px;
  margin-bottom: 0.6rem;
  font-size: 0.9rem;
  background: var(--void-2);
  border-left: 3px solid;
}

.flash-success {
  color: var(--neon-green);
  border-color: var(--neon-green);
  box-shadow: 0 0 16px rgba(57, 255, 143, 0.2);
}

.flash-error {
  color: var(--neon-red);
  border-color: var(--neon-red);
  box-shadow: 0 0 16px rgba(255, 56, 96, 0.2);
}

/* --- media (reveal page) --- */

video, img {
  width: 100%;
  border-radius: 4px;
  display: block;
  border: 1px solid var(--border);
  box-shadow: 0 0 40px rgba(176, 38, 255, 0.25);
}

.video-wrapper {
  position: relative;
  padding-top: 56.25%;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 0 40px rgba(176, 38, 255, 0.25);
}

.video-wrapper iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* --- scrollbar --- */

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--void); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--neon-purple-dim), var(--neon-magenta));
  border-radius: 5px;
}

/* --- mobile --- */

@media (max-width: 480px) {
  .container {
    padding: 2rem 1rem 3rem;
  }

  h1 {
    font-size: 1.4rem;
  }

  h2 {
    font-size: 1rem;
  }

  .panel {
    padding: 1.25rem;
  }

  .day-badge {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 0.85rem;
  }

  button, .button {
    width: 100%;
    text-align: center;
    padding: 0.85rem 1.5rem;
  }

  input[type="text"],
  input[type="password"] {
    font-size: 16px; /* voorkomt automatisch inzoomen bij focus op iOS */
  }
}