/* =====================================================
   MorseChat — Design System
   Terminal verde neon com efeito CRT
===================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --green:       #00ff88;
  --green-dim:   #00cc66;
  --green-glow:  rgba(0,255,136,.35);
  --green-glass: rgba(0,255,136,.06);
  --amber:       #ffaa00;
  --amber-dim:   #cc8800;
  --red:         #ff4455;
  --bg:          #070b09;
  --bg2:         #0c1410;
  --bg3:         #101a13;
  --bg4:         #152018;
  --border:      #1c3324;
  --border2:     #243d2c;
  --text:        #c8ffd8;
  --text-dim:    #4a7a5a;
  --text-muted:  #2d5040;
  --radius:      8px;
  --sidebar-w:   260px;
  --font-mono:   'Share Tech Mono', 'Courier New', monospace;
  --font-display:'Orbitron', monospace;
}

html, body { 
  height: 100%; 
  height: 100dvh; 
  background: var(--bg); 
  color: var(--text); 
  font-family: var(--font-mono); 
  overflow: hidden; 
  /* Previne zoom no iOS ao focar inputs */
  touch-action: pan-x pan-y;
}

/* ── Efeitos CRT ──────────────────────────────────────────────── */
.scanlines {
  position: fixed; inset: 0; z-index: 9999; pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px, transparent 3px,
    rgba(0,0,0,.15) 3px, rgba(0,0,0,.15) 4px
  );
}
.vignette {
  position: fixed; inset: 0; z-index: 9998; pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(0,0,0,.75) 100%);
}

/* ── Scrollbar ────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 4px; }

/* ╔══════════════════════════════════════
   AUTH PAGES (index.html, verify.html)
══════════════════════════════════════╗ */
.auth-page {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 24px;
}

.auth-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 40px 36px;
  width: 100%; max-width: 420px;
  box-shadow: 0 0 60px rgba(0,255,136,.06);
  display: flex; flex-direction: column; gap: 20px;
}

.auth-logo {
  display: flex; align-items: center; gap: 14px;
}

.logo-icon {
  width: 48px; height: 48px; border-radius: 10px;
  background: var(--green); display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 24px var(--green-glow);
  flex-shrink: 0;
}
.logo-icon svg { width: 26px; height: 26px; color: var(--bg); }

.logo-title {
  font-family: var(--font-display); font-weight: 900;
  font-size: 1.35rem; letter-spacing: .1em;
  color: var(--green); text-shadow: 0 0 18px var(--green-glow);
}

.logo-sub {
  font-size: .6rem; color: var(--text-dim); letter-spacing: .25em; margin-top: 2px;
}

.auth-desc {
  font-size: .8rem; color: var(--text-dim); line-height: 1.7; text-align: center;
}
.auth-desc strong { color: var(--green); }

/* ── Form fields ────────────────────────────────────────────── */
.auth-form { display: flex; flex-direction: column; gap: 16px; }

.field-group { display: flex; flex-direction: column; gap: 6px; }

.field-label {
  font-size: .6rem; color: var(--text-dim); letter-spacing: .2em;
}

.field-row {
  display: flex; align-items: center;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color .2s, box-shadow .2s;
}
.field-row:focus-within {
  border-color: var(--green-dim);
  box-shadow: 0 0 0 3px rgba(0,255,136,.1);
}

.field-prefix {
  padding: 0 10px 0 14px; color: var(--green);
  font-size: .95rem; user-select: none;
}

.field-input {
  flex: 1; background: transparent; border: none; outline: none;
  color: var(--text); font-family: var(--font-mono);
  font-size: .9rem; padding: 13px 14px 13px 0;
  caret-color: var(--green);
}
.field-input::placeholder { color: var(--text-muted); }

.field-hint { font-size: .6rem; color: var(--text-muted); }

/* ── Botões ─────────────────────────────────────────────────── */
.btn-primary {
  background: linear-gradient(135deg, var(--green-dim), var(--green));
  color: var(--bg); border: none; border-radius: var(--radius);
  padding: 13px; font-family: var(--font-display); font-size: .8rem;
  font-weight: 700; letter-spacing: .1em; cursor: pointer;
  box-shadow: 0 0 20px rgba(0,255,136,.25);
  transition: transform .15s, box-shadow .15s, opacity .15s;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.btn-primary:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 0 32px rgba(0,255,136,.45); }
.btn-primary:active:not(:disabled) { transform: translateY(0); }
.btn-primary:disabled { opacity: .45; cursor: not-allowed; }

.btn-ghost {
  background: transparent; color: var(--text-dim);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 10px; font-family: var(--font-mono); font-size: .8rem;
  cursor: pointer; transition: border-color .2s, color .2s;
  width: 100%;
}
.btn-ghost:hover { border-color: var(--green-dim); color: var(--text); }

.btn-link {
  background: none; border: none; color: var(--green);
  font-family: var(--font-mono); font-size: .78rem;
  cursor: pointer; text-decoration: underline;
  transition: opacity .2s;
}
.btn-link:disabled { opacity: .4; cursor: not-allowed; text-decoration: none; }

/* ── Error box ─────────────────────────────────────────────── */
.error-box {
  background: rgba(255,68,85,.08); border: 1px solid rgba(255,68,85,.3);
  border-radius: 6px; padding: 10px 14px;
  color: var(--red); font-size: .78rem; line-height: 1.5;
}

/* ── Spinner ────────────────────────────────────────────────── */
.spinner {
  display: inline-block; width: 14px; height: 14px;
  border: 2px solid rgba(0,0,0,.3); border-top-color: var(--bg);
  border-radius: 50%; animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Footer ─────────────────────────────────────────────────── */
.auth-footer { font-size: .62rem; color: var(--text-muted); text-align: center; line-height: 1.6; }

/* ══ OTP VERIFY ═════════════════════════════════════════════════ */
.otp-timer {
  display: flex; align-items: center; gap: 10px;
  font-size: .7rem; color: var(--text-dim); letter-spacing: .15em;
}
.timer-count {
  font-family: var(--font-display); font-size: .85rem;
  color: var(--green); text-shadow: 0 0 12px var(--green-glow);
}

.otp-grid {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px;
}

.otp-digit {
  aspect-ratio: 1; background: var(--bg3);
  border: 1px solid var(--border); border-radius: var(--radius);
  color: var(--green); font-family: var(--font-display);
  font-size: 1.3rem; text-align: center; outline: none;
  transition: border-color .2s, box-shadow .2s;
  caret-color: var(--green);
}
.otp-digit:focus {
  border-color: var(--green-dim);
  box-shadow: 0 0 0 3px rgba(0,255,136,.15);
}
.otp-digit--error { border-color: var(--red) !important; }

.resend-row {
  display: flex; align-items: center; gap: 6px;
  font-size: .75rem; color: var(--text-dim); justify-content: center;
}

/* ╔══════════════════════════════════════
   CHAT LAYOUT
══════════════════════════════════════╗ */
.chat-layout {
  display: flex; height: 100dvh; overflow: hidden;
  padding-bottom: env(safe-area-inset-bottom);
}

/* ── Sidebar ─────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w); background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; flex-shrink: 0;
  overflow: hidden;
  transition: transform .25s ease;
  z-index: 100;
}

.sidebar-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 14px 12px; border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.logo-inline {
  display: flex; align-items: center; gap: 8px;
}
.logo-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--green); box-shadow: 0 0 10px var(--green);
  animation: blink 2s ease-in-out infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:.3} }
.logo-name {
  font-family: var(--font-display); font-size: .85rem;
  font-weight: 700; color: var(--green); letter-spacing: .1em;
  text-shadow: 0 0 12px var(--green-glow);
}

.user-profile {
  display: flex; align-items: center; gap: 10px;
  padding: 14px; border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.user-avatar {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--green-glass); border: 1px solid var(--green-dim);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: .85rem; color: var(--green);
  flex-shrink: 0;
}
.user-name { font-size: .82rem; color: var(--text); }
.user-phone { font-size: .65rem; color: var(--text-dim); margin-top: 2px; }

.name-edit {
  display: flex; gap: 6px; padding: 10px 14px;
  border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.name-input {
  flex: 1; background: var(--bg3); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text); font-family: var(--font-mono);
  font-size: .75rem; padding: 6px 10px; outline: none;
  transition: border-color .2s;
}
.name-input:focus { border-color: var(--green-dim); }
.name-input::placeholder { color: var(--text-muted); }

.btn-sm {
  background: var(--green-dim); color: var(--bg);
  border: none; border-radius: 6px; padding: 6px 10px;
  font-family: var(--font-display); font-size: .6rem;
  font-weight: 700; cursor: pointer;
  transition: background .15s;
}
.btn-sm:hover { background: var(--green); }

.btn-ghost-sm {
  background: transparent; color: var(--text-dim);
  border: 1px solid var(--border);
}
.btn-ghost-sm:hover { border-color: var(--green-dim); color: var(--text); background: transparent; }

.rooms-section { flex: 1; display: flex; flex-direction: column; overflow: hidden; }

.rooms-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px 6px; flex-shrink: 0;
}
.section-label { font-size: .6rem; color: var(--text-dim); letter-spacing: .2em; }

.btn-icon {
  background: none; border: none; color: var(--text-dim);
  font-size: 1.1rem; cursor: pointer; padding: 4px 8px;
  border-radius: 4px; transition: color .2s, background .2s;
  line-height: 1;
}
.btn-icon:hover { color: var(--green); background: var(--green-glass); }
.btn-add { font-size: 1.3rem; font-weight: 700; }

.rooms-list {
  flex: 1; overflow-y: auto; padding: 4px 8px;
}

.room-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px; border-radius: 6px; cursor: pointer;
  transition: background .15s; margin-bottom: 2px;
}
.room-item:hover { background: var(--green-glass); }
.room-item.active { background: rgba(0,255,136,.12); }
.room-item.active .room-item-name { color: var(--green); }

.room-item-icon { font-size: .8rem; color: var(--text-dim); }
.room-item-name { flex: 1; font-size: .8rem; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.room-item-count { font-size: .65rem; color: var(--text-dim); }

.new-room-form {
  padding: 8px 14px 10px; border-top: 1px solid var(--border); flex-shrink: 0;
}
.new-room-actions { display: flex; gap: 6px; margin-top: 6px; }

.btn-logout {
  margin: auto 14px 14px; background: transparent; color: var(--text-muted);
  border: 1px solid var(--border); border-radius: 6px;
  padding: 8px; font-family: var(--font-mono); font-size: .7rem;
  cursor: pointer; transition: border-color .2s, color .2s;
  flex-shrink: 0;
}
.btn-logout:hover { border-color: var(--red); color: var(--red); }

/* ── Chat area ───────────────────────────────────────────────── */
.chat-area {
  flex: 1; display: flex; flex-direction: column; overflow: hidden;
  min-width: 0;
}

.chat-header {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; border-bottom: 1px solid var(--border);
  background: var(--bg2); flex-shrink: 0;
}

.chat-room-info { flex: 1; min-width: 0; }
.chat-room-name {
  display: block; font-family: var(--font-display);
  font-size: .9rem; color: var(--green);
  letter-spacing: .05em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.chat-room-status { font-size: .6rem; color: var(--text-dim); letter-spacing: .15em; }

.signal-bar {
  display: flex; align-items: center; gap: 5px;
  font-size: .6rem; color: var(--text-dim); letter-spacing: .12em;
}
.signal-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--green); box-shadow: 0 0 8px var(--green);
  animation: blink 2s ease-in-out infinite;
}

/* ── Wave bar ────────────────────────────────────────────────── */
.wave-bar {
  height: 42px; background: var(--bg3); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; padding: 0 12px; gap: 2px;
  flex-shrink: 0; position: relative; overflow: hidden;
}
.wave-label {
  position: absolute; left: 10px; top: 4px;
  font-size: .55rem; color: var(--text-muted); letter-spacing: .15em;
}
.wave-col {
  flex: 1; background: var(--green-dim); border-radius: 2px;
  height: 3px; transition: height .07s ease; opacity: .4;
}
.wave-col.active { opacity: 1; background: var(--green); box-shadow: 0 0 4px var(--green); }

/* ── Messages window ─────────────────────────────────────────── */
.messages-window {
  flex: 1; overflow-y: auto; padding: 14px 16px;
  display: flex; flex-direction: column; gap: 16px;
  scroll-behavior: smooth;
}

.welcome-msg {
  text-align: center; padding: 40px 20px; color: var(--text-dim);
}
.welcome-title {
  font-family: var(--font-display); font-size: 1rem;
  color: var(--green); letter-spacing: .3em;
  text-shadow: 0 0 20px var(--green-glow); margin-bottom: 12px;
}

/* ── Message bubbles ─────────────────────────────────────────── */
.msg-group {
  display: flex; flex-direction: column; gap: 4px;
  animation: fadeSlide .3s ease forwards;
}
@keyframes fadeSlide { from{opacity:0;transform:translateY(12px)} to{opacity:1;transform:translateY(0)} }

.msg-group.own { align-items: flex-end; }
.msg-group.other { align-items: flex-start; }

.msg-meta {
  display: flex; align-items: center; gap: 7px;
  font-size: .58rem; color: var(--text-dim); letter-spacing: .1em;
}
.msg-meta .handle { color: var(--green-dim); }
.msg-group.other .msg-meta .handle { color: var(--amber-dim); }

.msg-plain {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px 8px 2px 8px; padding: 8px 13px;
  max-width: 70%; font-size: .83rem; line-height: 1.5;
  word-break: break-word;
}
.msg-group.other .msg-plain {
  border-radius: 8px 8px 8px 2px; border-color: var(--border2);
}

.msg-morse {
  font-size: .72rem; color: var(--green);
  text-shadow: 0 0 6px var(--green-glow);
  background: var(--green-glass);
  border: 1px solid rgba(0,255,136,.15);
  border-radius: 6px; padding: 5px 13px;
  max-width: 80%; letter-spacing: .22em;
  word-break: break-word; line-height: 1.7;
}
.msg-group.other .msg-morse {
  color: var(--amber); text-shadow: 0 0 6px rgba(255,170,0,.3);
  background: rgba(255,170,0,.04); border-color: rgba(255,170,0,.15);
}

.hidden-text { display: none; }

.msg-controls {
  display: flex; gap: 6px; margin-top: 3px; align-items: center;
}
.btn-msg-ctrl {
  background: transparent; border: 1px solid var(--border);
  border-radius: 4px; color: var(--text-dim);
  font-family: var(--font-display); font-size: .55rem;
  padding: 3px 6px; cursor: pointer; transition: all .2s;
  letter-spacing: .08em;
}
.btn-msg-ctrl:hover {
  color: var(--green); border-color: var(--green-dim);
  background: var(--green-glass);
}
.btn-msg-ctrl.playing {
  color: var(--amber); border-color: var(--amber-dim);
  background: rgba(255,170,0,.1);
  animation: curBlink .5s step-end infinite;
}

/* sistema/notificação */
.msg-system {
  text-align: center; font-size: .65rem; color: var(--text-muted);
  letter-spacing: .12em; padding: 2px 0;
}

/* ── Input area ──────────────────────────────────────────────── */
.input-area {
  flex-shrink: 0; border-top: 1px solid var(--border);
  padding: 12px 14px; background: var(--bg2);
  display: flex; flex-direction: column; gap: 10px;
}

.mode-toggle { display: flex; gap: 6px; }
.mode-btn {
  background: transparent; border: 1px solid var(--border);
  border-radius: 20px; padding: 4px 14px; color: var(--text-dim);
  font-family: var(--font-display); font-size: .62rem; letter-spacing: .1em;
  cursor: pointer; transition: all .15s;
}
.mode-btn.active {
  background: var(--green-glass); border-color: var(--green-dim);
  color: var(--green);
}

.text-input-row {
  display: flex; align-items: flex-end; gap: 8px;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 4px 14px;
  transition: border-color .2s, box-shadow .2s;
}
.text-input-row:focus-within {
  border-color: var(--green-dim); box-shadow: 0 0 0 3px rgba(0,255,136,.08);
}

.prompt-sym { color: var(--green); font-size: .9rem; padding-bottom: 11px; user-select: none; }

.msg-textarea {
  flex: 1; background: transparent; border: none; outline: none;
  color: var(--text); font-family: var(--font-mono); font-size: .88rem;
  padding: 10px 0; resize: none; caret-color: var(--green);
  max-height: 120px; line-height: 1.4;
}
.msg-textarea::placeholder { color: var(--text-muted); }

.btn-send {
  background: linear-gradient(135deg, var(--green-dim), var(--green));
  color: var(--bg); border: none; border-radius: 6px;
  padding: 8px 16px; font-family: var(--font-display); font-size: .7rem;
  font-weight: 700; letter-spacing: .08em; cursor: pointer;
  box-shadow: 0 0 12px rgba(0,255,136,.25);
  transition: transform .12s, box-shadow .12s;
  flex-shrink: 0; align-self: flex-end; margin-bottom: 4px;
}
.btn-send:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 0 22px rgba(0,255,136,.45); }
.btn-send:disabled { opacity: .4; cursor: not-allowed; }

/* ── Teclado Morse ───────────────────────────────────────────── */
.morse-keyboard {
  display: flex; flex-direction: column; gap: 8px;
}

.morse-preview {
  background: var(--bg3); border: 1px solid rgba(0,255,136,.2);
  border-radius: 6px; padding: 8px 12px; min-height: 38px;
  font-size: .78rem; color: var(--green);
  text-shadow: 0 0 8px var(--green-glow);
  letter-spacing: .3em; word-break: break-word;
  line-height: 1.7;
}
.morse-cursor-blink {
  display: inline-block; width: 8px; height: .9em;
  background: var(--green); vertical-align: middle;
  margin-left: 2px; animation: curBlink .6s step-end infinite;
}
@keyframes curBlink { 0%,100%{opacity:1} 50%{opacity:0} }

.morse-plain-preview {
  font-size: .7rem; color: var(--text-dim); min-height: 18px;
  letter-spacing: .08em;
}

.morse-keys { display: flex; flex-direction: column; gap: 6px; }

.keys-group {
  display: flex; flex-wrap: wrap; gap: 4px;
}

.morse-key {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 6px; padding: 4px 2px;
  min-width: 46px; text-align: center; cursor: pointer;
  transition: background .12s, border-color .12s;
  display: flex; flex-direction: column; gap: 1px;
}
.morse-key:hover { background: var(--green-glass); border-color: var(--green-dim); }
.morse-key:active { transform: scale(.95); }

.morse-key .key-letter {
  font-family: var(--font-display); font-size: .7rem; color: var(--text);
}
.morse-key .key-code {
  font-size: .6rem; color: var(--green-dim); letter-spacing: .15em;
}

.morse-controls {
  display: flex; gap: 6px; align-items: center; flex-wrap: wrap;
}
.morse-ctrl-btn {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text-dim);
  font-family: var(--font-mono); font-size: .7rem;
  padding: 7px 12px; cursor: pointer;
  transition: border-color .15s, color .15s;
}
.morse-ctrl-btn:hover { border-color: var(--green-dim); color: var(--text); }
.morse-ctrl-del { border-color: rgba(255,68,85,.3); }
.morse-ctrl-del:hover { border-color: var(--red); color: var(--red); }

/* ── Toast ───────────────────────────────────────────────────── */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 20px; padding: 8px 20px;
  font-size: .78rem; color: var(--text);
  box-shadow: 0 4px 20px rgba(0,0,0,.4);
  z-index: 9000; white-space: nowrap;
  animation: toastIn .3s ease;
}
@keyframes toastIn { from{opacity:0;transform:translateX(-50%) translateY(10px)} to{opacity:1;transform:translateX(-50%) translateY(0)} }

/* ── Sidebar mobile ─────────────────────────────────────────── */
@media (max-width: 640px) {
  .sidebar {
    position: fixed; top: 0; left: 0; bottom: 0;
    transform: translateX(-100%);
    box-shadow: 10px 0 30px rgba(0,0,0,.5);
    width: 280px;
    z-index: 2000;
  }
  .sidebar.open { transform: translateX(0); }
  #btn-sidebar-close { display: block; }

  /* Ajustes gerais Mobile */
  .chat-header { padding: 10px 12px; }
  .messages-window { padding: 10px; gap: 12px; }
  .input-area { padding: 8px 10px calc(8px + env(safe-area-inset-bottom)); }
  .msg-plain { font-size: .8rem; padding: 6px 10px; }
}

@media (min-width: 641px) {
  #btn-sidebar-open { display: none; }
  #btn-sidebar-close { display: none; }
}