/* Cinder — terminal / cyberpunk theme */

:root {
  --bg:        #050805;
  --bg-grid:   #0a120a;
  --surface:   #0a120a;
  --surface2:  #0e1a0e;
  --border:    #1a3a1a;
  --border-hi: #2a5a2a;
  --text:      #c8e8c8;
  --muted:     #5a8a5a;
  --dim:       #345a34;

  --accent:        #00ff66;
  --accent-soft:   rgba(0, 255, 102, 0.18);
  --accent-glow:   rgba(0, 255, 102, 0.45);
  --accent-ink:    #021a08;
  --accent-2:      #00d9ff;
  --accent-2-soft: rgba(0, 217, 255, 0.18);

  --danger:    #ff4d6d;
  --danger-soft: rgba(255, 77, 109, 0.18);
  --warn:      #ffcc33;

  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --shadow-glow: 0 0 0 1px var(--accent-glow), 0 0 12px var(--accent-soft);
}

* { box-sizing: border-box; }

html { background: var(--bg); }

body {
  margin: 0;
  font-family: var(--mono);
  font-size: 14px;
  background:
    radial-gradient(ellipse at top, rgba(0, 255, 102, 0.05), transparent 60%),
    radial-gradient(ellipse at bottom, rgba(0, 217, 255, 0.04), transparent 70%),
    var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* Subtle CRT scanline overlay — lets us call this cyberpunk without
   making it actually unreadable. Opacity is tiny on purpose. */
.crt {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(0, 255, 102, 0.025) 0,
      rgba(0, 255, 102, 0.025) 1px,
      transparent 1px,
      transparent 3px
    );
  mix-blend-mode: screen;
}

.container {
  position: relative;
  z-index: 2;
  max-width: 44rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

/* ===== brand / header ===== */

.brand { margin-bottom: 1.75rem; }
.brand-line {
  display: inline-flex;
  align-items: baseline;
  gap: .6rem;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: filter .15s;
}
.brand-line:hover h1,
.brand-line:focus-visible h1 {
  color: var(--accent);
  text-shadow: 0 0 12px var(--accent-soft);
}
.brand-line:focus-visible { outline: 0; }
.brand-line .prompt {
  color: var(--accent);
  font-size: 1.5rem;
  font-weight: 700;
  text-shadow: 0 0 10px var(--accent-glow);
}
.brand-line h1 {
  margin: 0;
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
}
.brand-line .cursor {
  display: inline-block;
  width: 0.55em;
  height: 1em;
  background: var(--accent);
  margin-left: 0.15em;
  vertical-align: -0.15em;
  animation: blink 1.05s steps(1) infinite;
  box-shadow: 0 0 8px var(--accent-glow);
}
@keyframes blink { 50% { opacity: 0; } }

.tagline { color: var(--accent); margin: .4rem 0 .15rem; font-size: .9rem; }
.subline { color: var(--muted); margin: 0; font-size: .82rem; }

/* ===== tabs (encrypt / decrypt) ===== */

.tabs {
  display: flex;
  gap: 0;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}
.tab {
  background: none;
  border: 0;
  color: var(--muted);
  padding: .6rem 1.1rem;
  cursor: pointer;
  font: inherit;
  font-size: .9rem;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  letter-spacing: 0.03em;
  transition: color .12s, border-color .12s;
}
.tab:hover { color: var(--text); }
.tab:focus-visible { outline: 0; color: var(--text); }
.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  text-shadow: 0 0 8px var(--accent-soft);
}

.panel { display: none; }
.panel.active { display: block; }

/* ===== segmented control (text / file) ===== */

.seg {
  display: inline-flex;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 2px;
  margin-bottom: 1rem;
}
.seg-btn {
  background: none;
  border: 0;
  color: var(--muted);
  padding: .35rem .9rem;
  border-radius: 1px;
  cursor: pointer;
  font: inherit;
  font-size: .85rem;
  letter-spacing: 0.02em;
  transition: background .12s, color .12s;
}
.seg-btn:hover { color: var(--text); }
.seg-btn.active {
  background: var(--accent-soft);
  color: var(--accent);
}

/* ===== dropzone ===== */

.dropzone {
  border: 1px dashed var(--border-hi);
  border-radius: 2px;
  padding: 1.75rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s, box-shadow .15s;
  margin-bottom: 1rem;
  background: rgba(10, 18, 10, 0.4);
}
.dropzone:hover, .dropzone:focus {
  border-color: var(--accent);
  outline: 0;
  background: var(--accent-soft);
  box-shadow: var(--shadow-glow);
}
.dropzone.drag {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: var(--shadow-glow);
}
.dropzone-msg {
  margin: 0;
  color: var(--muted);
  font-size: .88rem;
  letter-spacing: 0.02em;
}
.file-info {
  margin: .5rem 0 0;
  color: var(--accent-2);
  font-weight: 500;
  min-height: 1.25em;
  word-break: break-all;
  font-size: .88rem;
}

/* ===== fields & inputs ===== */

.field { display: block; margin-bottom: 1rem; }
.field .label,
.field > span {
  display: block;
  margin-bottom: .35rem;
  font-size: .82rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: lowercase;
}
.field .hint {
  font-style: normal;
  color: var(--dim);
  font-size: .82em;
  margin-left: .25em;
}

input[type="password"],
input[type="text"],
select,
textarea {
  width: 100%;
  padding: .6rem .75rem;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 2px;
  font: inherit;
  font-family: var(--mono);
  font-size: .9rem;
  transition: border-color .12s, box-shadow .12s;
}
input:focus,
select:focus,
textarea:focus {
  outline: 0;
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
}
input::placeholder, textarea::placeholder { color: var(--dim); }
input::selection, textarea::selection { background: var(--accent-soft); color: var(--accent); }

textarea {
  min-height: 9rem;
  resize: vertical;
  font-size: .88rem;
}

select {
  appearance: none;
  -webkit-appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--accent) 50%),
    linear-gradient(135deg, var(--accent) 50%, transparent 50%);
  background-position:
    calc(100% - 14px) 55%,
    calc(100% - 9px) 55%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 2rem;
}

/* password row + show/copy toggle */
.pw-row { display: flex; gap: .4rem; }
.pw-row input { flex: 1; min-width: 0; }
.pw-toggle {
  background: var(--surface2);
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 0 .85rem;
  cursor: pointer;
  font: inherit;
  font-family: var(--mono);
  font-size: .82rem;
  letter-spacing: 0.02em;
  transition: color .12s, border-color .12s;
  flex-shrink: 0;
}
.pw-toggle:hover { color: var(--accent); border-color: var(--border-hi); }

/* ===== expiry / burn row ===== */

.row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  align-items: end;
}
.field.inline {
  margin-bottom: 0;
  flex: 1 1 12rem;
}
.field.inline.checkbox {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: .55rem;
  padding-bottom: .5rem;
}
.field.inline.checkbox > .label,
.field.inline.checkbox > span {
  margin: 0;
  color: var(--text);
  font-size: .88rem;
  text-transform: lowercase;
}
input[type="checkbox"] {
  width: 1.05em;
  height: 1.05em;
  appearance: none;
  -webkit-appearance: none;
  background: var(--surface);
  border: 1px solid var(--border-hi);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
  flex: 0 0 auto;
  padding: 0;
}
input[type="checkbox"]:checked {
  border-color: var(--accent);
  background: var(--accent-soft);
}
input[type="checkbox"]:checked::after {
  content: "x";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--accent);
  font-weight: 700;
  font-size: .85em;
  line-height: 1;
}
input[type="checkbox"]:focus-visible {
  outline: 0;
  box-shadow: var(--shadow-glow);
}

/* ===== buttons ===== */

.actions {
  display: flex;
  gap: .6rem;
  margin-top: .25rem;
  flex-wrap: wrap;
}

button.primary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: .6rem 1.1rem;
  border-radius: 2px;
  font: inherit;
  font-family: var(--mono);
  font-size: .88rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background .12s, color .12s, box-shadow .12s, transform .05s;
}
button.primary:hover {
  background: var(--accent-soft);
  box-shadow: var(--shadow-glow);
}
button.primary:focus-visible {
  outline: 0;
  box-shadow: var(--shadow-glow);
}
button.primary:active { transform: translateY(1px); }
button.primary:disabled {
  opacity: .45;
  cursor: not-allowed;
  box-shadow: none;
  background: transparent;
}
button.primary.secondary {
  color: var(--accent-2);
  border-color: var(--accent-2);
}
button.primary.secondary:hover {
  background: var(--accent-2-soft);
  box-shadow: 0 0 0 1px var(--accent-2), 0 0 12px var(--accent-2-soft);
}
button.primary.danger {
  color: var(--danger);
  border-color: var(--danger);
}
button.primary.danger:hover {
  background: var(--danger-soft);
  box-shadow: 0 0 0 1px var(--danger), 0 0 12px var(--danger-soft);
}

/* ===== status line + progress ===== */

.status {
  display: block;
  margin-top: 1rem;
  min-height: 1.25em;
  font-size: .85rem;
  font-family: var(--mono);
  word-break: break-word;
  white-space: pre-wrap;
  color: var(--muted);
}
.status.info { color: var(--accent-2); }
.status.ok   { color: var(--accent); text-shadow: 0 0 8px var(--accent-soft); }
.status.err  { color: var(--danger); text-shadow: 0 0 8px var(--danger-soft); }

/* ===== share link box ===== */

#encrypt-share,
#encrypt-delete {
  margin-top: 1rem;
  padding: .75rem;
  background: var(--surface);
  border-radius: 2px;
}
#encrypt-share {
  border: 1px solid var(--accent);
  box-shadow: var(--shadow-glow);
}
#encrypt-delete {
  border: 1px solid var(--danger);
  box-shadow: 0 0 0 1px var(--danger-soft), 0 0 12px var(--danger-soft);
}
#encrypt-share input[type="text"] {
  font-family: var(--mono);
  font-size: .8rem;
  color: var(--accent);
  background: var(--bg);
  border-color: var(--border-hi);
}
#encrypt-delete input[type="text"] {
  font-family: var(--mono);
  font-size: .8rem;
  color: var(--danger);
  background: var(--bg);
  border-color: var(--border-hi);
}

/* ===== view panel (shared link viewer) ===== */

.view-intro {
  color: var(--muted);
  margin: 0 0 1rem;
  font-size: .88rem;
}

#view-text {
  background: var(--surface);
  border: 1px solid var(--border-hi);
  border-radius: 2px;
  padding: .85rem 1rem;
  margin: 1rem 0 0;
  max-height: 28rem;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--mono);
  font-size: .85rem;
  color: var(--text);
  line-height: 1.5;
}
#view-text::selection { background: var(--accent-soft); color: var(--accent); }

/* ===== footer ===== */

footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--dim);
  font-size: .78rem;
  text-align: left;
}
footer p { margin: .25rem 0; }

/* ===== responsive ===== */

@media (max-width: 600px) {
  body { font-size: 13px; }
  .container { padding: 1.5rem 1rem 3rem; }
  .brand-line h1 { font-size: 1.4rem; }
  .brand-line .prompt { font-size: 1.3rem; }
  .actions button.primary { flex: 1 1 100%; }
  .pw-row { flex-wrap: wrap; }
  .pw-row input { flex: 1 1 100%; min-width: 0; }
  .pw-toggle { flex: 0 0 auto; }
  .row { gap: .75rem; }
  .field.inline { flex: 1 1 100%; }
  .tabs { gap: 0; }
  .tab { padding: .55rem .8rem; }
}

@media (max-width: 380px) {
  .brand-line h1 { font-size: 1.2rem; }
  .dropzone { padding: 1.25rem .75rem; }
}

@media (prefers-reduced-motion: reduce) {
  .brand-line .cursor { animation: none; }
}