:root {
  --bg: #000600;
  --green: #00ff41;
  --green-dim: #00b32c;
  --green-mute: #0a6a25;
  --green-ghost: #063d16;
  --amber: #9fff5a;
  --warn: #ffcf5a;
  --line: #0c3a17;
  --panel: rgba(0, 20, 6, 0.68);
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--green);
  font: 15px/1.5 var(--mono);
  text-shadow: 0 0 6px rgba(0, 255, 65, .4);
  overscroll-behavior: none;
}

html, body, button { -webkit-user-select: none; user-select: none; }

body {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  height: 100dvh;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  background:
    repeating-linear-gradient(0deg, transparent 0 2px, rgba(0, 20, 6, .3) 3px),
    radial-gradient(120% 120% at 50% 50%, transparent 60%, rgba(0, 0, 0, .68) 100%);
}

#rain {
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: .12;
  pointer-events: none;
}

#shield {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: none;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  color: var(--green-mute);
  letter-spacing: 4px;
  font-size: 14px;
}

body.obscured #shield { display: flex; }
body.obscured header, body.obscured #status, body.obscured main { filter: blur(26px); }
@media print { body { display: none !important; } }

header {
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 2;
  min-height: 54px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(#001004, transparent);
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  letter-spacing: 3px;
}

.brand::before { content: "▓ "; color: var(--green-dim); }

.dot {
  width: 8px;
  height: 8px;
  border-radius: 1px;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
  animation: blink 1.1s steps(1) infinite;
}

@keyframes blink { 50% { opacity: .16; } }

.connection-state {
  margin-left: auto;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--green-mute);
  font-size: 10px;
  letter-spacing: .8px;
  text-transform: uppercase;
}

.connection-state.waiting,
.connection-state.connecting { color: var(--amber); border-color: var(--green-mute); }
.connection-state.secure { color: var(--green); border-color: var(--green); background: rgba(0, 255, 65, .08); }
.connection-state.blocked { color: var(--warn); border-color: #6a4a0a; }

.status {
  z-index: 2;
  min-height: 28px;
  padding: 6px 16px;
  color: var(--green-mute);
  font-size: 12px;
  text-align: center;
}

.status:empty { visibility: hidden; }

.toast {
  z-index: 4;
  margin: 6px 16px;
  padding: 10px 14px;
  border: 1px solid var(--green-mute);
  border-radius: 4px;
  background: rgba(0, 255, 65, .08);
  cursor: pointer;
  font-size: 13px;
  text-align: center;
}

main {
  z-index: 2;
  display: flex;
  flex: 1;
  min-height: 0;
}

.panel {
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: center;
  gap: 15px;
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
  padding: 28px;
}

.panel h1 {
  margin: 0;
  font-size: clamp(25px, 7vw, 34px);
  letter-spacing: 3px;
  line-height: 1.16;
}

.panel h1::before { content: "> "; color: var(--green-dim); }

.terminal-title {
  font-size: clamp(40px, 14vw, 72px) !important;
  letter-spacing: 8px !important;
}

.terminal-title::before { content: "" !important; }

.terminal-cursor {
  margin-left: 5px;
  color: var(--green);
  animation: blink 1s steps(1) infinite;
}

.terminal-instruction {
  margin: 0 0 10px;
  color: var(--green-dim);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .7px;
  line-height: 1.7;
}

.field-label {
  margin: 6px 0 -7px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .8px;
  text-transform: uppercase;
}

input,
.primary,
.ghost,
.composer button {
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: rgba(0, 10, 3, .78);
  color: var(--green);
  font-family: inherit;
  font-size: 16px;
  text-shadow: inherit;
}

input {
  padding: 13px 14px;
  -webkit-user-select: text;
  user-select: text;
}

.wide-input { width: 100%; }
input::placeholder { color: var(--green-ghost); opacity: 1; }
input:focus { outline: none; border-color: var(--green); box-shadow: 0 0 10px rgba(0, 255, 65, .28); }

.primary {
  width: 100%;
  padding: 13px 16px;
  border-color: var(--green-mute);
  background: rgba(0, 255, 65, .12);
  cursor: pointer;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.primary::before { content: "[ "; }
.primary::after { content: " ]"; }
.primary:hover { background: rgba(0, 255, 65, .2); box-shadow: 0 0 14px rgba(0, 255, 65, .22); }
.primary:disabled { opacity: .45; cursor: default; }

.ghost {
  padding: 10px 13px;
  border-color: var(--line);
  background: none;
  color: var(--green-mute);
  cursor: pointer;
  font-size: 12px;
  letter-spacing: .7px;
  text-transform: uppercase;
}

.panel .ghost { width: 100%; }
.ghost:hover { color: var(--green); border-color: var(--green-mute); }
.ghost::before { content: "[ "; }
.ghost::after { content: " ]"; }

.error {
  min-height: 18px;
  margin: -5px 0 0;
  color: var(--warn);
  font-size: 12px;
}

.error:empty { display: none; }

.waiting-panel { text-align: center; }
.waiting-panel h1::before { content: ""; }

.waiting-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  color: var(--green-dim);
  font-size: clamp(20px, 6vw, 28px) !important;
  font-weight: 800;
  letter-spacing: 2px !important;
  text-transform: uppercase;
}

.pulse {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 9px var(--amber);
  animation: pulse 1.3s ease-in-out infinite;
}

@keyframes pulse { 50% { opacity: .25; transform: scale(.75); } }

.password-card {
  width: 100%;
  min-height: 54px;
  padding: 14px;
  border: 1px dashed var(--green);
  border-radius: 5px;
  background: var(--panel);
  color: var(--amber);
  font-size: 17px;
  font-weight: 800;
  overflow-wrap: anywhere;
  -webkit-user-select: text;
  user-select: text;
}

.chat {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-height: 0;
  width: 100%;
}

.chatbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  color: var(--green-mute);
}

.chatbar > div { display: flex; flex-direction: column; min-width: 0; }
.chatbar strong { color: var(--green); font-size: 12px; letter-spacing: 1px; text-transform: uppercase; }
.chatbar span { font-size: 10px; line-height: 1.4; }
.chatbar .ghost { min-height: 40px; margin-left: auto; padding: 7px 9px; flex: 0 0 auto; }

.messages {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
  padding: 16px;
}

.messages:empty::before {
  content: "ENCRYPTED CHANNEL OPEN.";
  margin: auto;
  color: var(--green-mute);
  font-size: 12px;
  text-align: center;
}

.msg {
  position: relative;
  max-width: 82%;
  padding: 8px 12px 14px;
  border: 1px solid var(--green-mute);
  border-radius: 5px;
  background: var(--panel);
  overflow-wrap: anywhere;
  animation: pop .16s ease;
}

.msg.mine { align-self: flex-end; border-color: var(--green); }
.msg.theirs { align-self: flex-start; border-color: var(--green-mute); color: var(--amber); }
.msg .body { white-space: pre-wrap; -webkit-user-select: text; user-select: text; }
.msg .body::before { display: block; margin-bottom: 2px; color: var(--green-mute); font-size: 10px; }
.msg.mine .body::before { content: "You"; }
.msg.theirs .body::before { content: "Them"; color: var(--green-ghost); }
.msg .tick { position: absolute; right: 8px; bottom: 4px; color: var(--green-mute); font-size: 10px; }

.msg .ttl {
  position: absolute;
  right: 8px;
  bottom: 5px;
  left: 8px;
  height: 2px;
  border-radius: 2px;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  transform-origin: left center;
  animation: drain 60s linear forwards;
}

.msg.gone { opacity: 0; transform: scale(.97); transition: opacity .4s, transform .4s; }

@keyframes drain { from { transform: scaleX(1); } to { transform: scaleX(0); } }
@keyframes pop { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: none; } }

.composer {
  display: flex;
  gap: 8px;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  background: linear-gradient(transparent, #001004);
}

.composer input { flex: 1; min-width: 0; }

.composer button {
  width: auto;
  min-width: 68px;
  padding: 10px 12px;
  border-color: var(--green-mute);
  background: rgba(0, 255, 65, .1);
  cursor: pointer;
  font-weight: 800;
}

.composer input:disabled,
.composer button:disabled { opacity: .42; cursor: default; }

@media (prefers-reduced-motion: reduce) {
  .dot, .pulse, .terminal-cursor { animation: none; }
}

@media (max-width: 430px) {
  .panel { justify-content: flex-start; padding: clamp(24px, 8vh, 54px) 22px 22px; }
  .connection-state { font-size: 9px; }
  .chatbar span { max-width: 185px; }
  .chatbar .ghost { font-size: 10px; }
}