*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg:      #0a0a0a;
  --text:    #e8e8e8;
  --dim:     #686868;
  --dimmer:  #363636;
  --accent:  #c09850;
  --error:   #c03030;
  --success: #3a8060;
  --font:    'Space Mono', 'Courier New', Courier, monospace;
}

html, body {
  height: 100%;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

/* Subtle noise overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  pointer-events: none;
  z-index: 0;
}

#app {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 560px;
  padding: 3rem 2rem;
}

/* ── Screens ──────────────────────────────────────── */

.screen {
  transition: opacity 0.6s ease;
}

.screen.hidden,
.hidden {
  display: none !important;
}

/* ── Loading ──────────────────────────────────────── */

#loading {
  text-align: center;
  color: var(--dim);
  font-size: 1.5rem;
}

/* ── Puzzle ───────────────────────────────────────── */

#transmission-id {
  font-size: 0.65rem;
  color: var(--dim);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 3.5rem;
}

#clue {
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.9;
  margin-bottom: 3.5rem;
  padding-left: 1.4rem;
  border-left: 1px solid var(--accent);
  min-height: 2em;
  white-space: pre-wrap;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 1s ease, transform 1s ease;
}

#clue.visible {
  opacity: 1;
  transform: translateY(0);
}

#clue a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  transition: opacity 0.15s;
}

#clue a:hover {
  opacity: 0.7;
}

#clue-image {
  display: block;
  max-width: 100%;
  max-height: 360px;
  object-fit: contain;
  border-left: 1px solid var(--accent);
  padding-left: 1.4rem;
  margin-bottom: 3.5rem;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 1s ease, transform 1s ease;
}

#clue-image.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Mobile keyboard trigger ─────────────────────── */

#mobile-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 1px;
  height: 1px;
  top: 0;
  left: 0;
}

/* ── Hangman input ────────────────────────────────── */

#hangman-boxes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.4rem;
  margin-bottom: 1.8rem;
  align-items: flex-end;
}

.letter-box {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2.6rem;
  border-bottom: 1px solid var(--dimmer);
  font-family: var(--font);
  font-size: 1rem;
  letter-spacing: 0;
  color: var(--text);
  text-transform: uppercase;
  user-select: none;
  cursor: pointer;
  transition: border-color 0.15s;
}

.letter-box.cursor {
  border-bottom-color: var(--accent);
}

#hangman-boxes.shake .letter-box {
  animation: hm-shake 0.35s ease;
}

#hangman-boxes.correct .letter-box {
  border-bottom-color: var(--success);
  color: var(--success);
}

@keyframes hm-shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-5px); }
  40%, 80% { transform: translateX(5px); }
}

#submit-btn {
  background: transparent;
  border: 1px solid var(--dimmer);
  color: var(--dim);
  font-family: var(--font);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  padding: 0.55rem 1.4rem;
  cursor: pointer;
  align-self: flex-start;
  text-transform: uppercase;
  transition: border-color 0.2s, color 0.2s;
}

#submit-btn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

#submit-btn:disabled {
  opacity: 0.25;
  cursor: not-allowed;
}

/* ── Status ───────────────────────────────────────── */

#status {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  min-height: 1em;
  transition: color 0.2s;
}

#status.error   { color: var(--error); }
#status.success { color: var(--success); }

#countdown {
  font-size: 0.65rem;
  color: var(--dim);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-top: 0.5rem;
}

/* ── Reset ────────────────────────────────────────── */

#reset-area,
#reset-area-complete {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--dimmer);
}

#reset-btn,
#reset-btn-complete {
  background: transparent;
  border: none;
  color: var(--dimmer);
  font-family: var(--font);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 0;
  transition: color 0.2s;
}

#reset-btn:hover,
#reset-btn-complete:hover { color: var(--error); }

/* ── Complete ─────────────────────────────────────── */

#complete-screen {
  text-align: left;
}

.complete-title {
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.complete-sub {
  font-size: 0.65rem;
  color: var(--dim);
  letter-spacing: 0.2em;
  margin-bottom: 3rem;
}

/* ── Email form ───────────────────────────────────── */

#email-section {
  border-top: 1px solid var(--dimmer);
  padding-top: 2.5rem;
}

#email-prompt {
  font-size: 0.75rem;
  color: var(--dim);
  letter-spacing: 0.08em;
  line-height: 1.8;
  margin-bottom: 1.8rem;
}

#email-form {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

#email-input {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--dimmer);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  padding: 0.5rem 0;
  width: 100%;
  outline: none;
  transition: border-color 0.3s ease;
}

#email-input:focus { border-bottom-color: var(--accent); }

#email-input::placeholder { color: var(--dimmer); font-style: italic; }

#email-submit-btn {
  background: transparent;
  border: 1px solid var(--dimmer);
  color: var(--dim);
  font-family: var(--font);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  padding: 0.55rem 1.4rem;
  cursor: pointer;
  align-self: flex-start;
  text-transform: uppercase;
  transition: border-color 0.2s, color 0.2s;
}

#email-submit-btn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

#email-submit-btn:disabled { opacity: 0.25; cursor: not-allowed; }

#email-status {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  min-height: 1em;
}

#email-status.success { color: var(--success); }
#email-status.error   { color: var(--error); }

/* ── Blink ────────────────────────────────────────── */

.blink {
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}