:root {
  --bg: #0d1117;
  --bg2: #161b22;
  --bg3: #21262d;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #2f81f7;
  --danger: #da3633;
  --danger-dark: #b91c1c;
  --ok: #3fb950;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; overflow: hidden; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  font-size: 15px;
}

/* ===== AUTH ===== */
.auth-screen {
  height: 100vh;
  height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  padding-top: max(20px, env(safe-area-inset-top));
  padding-bottom: max(20px, env(safe-area-inset-bottom));
  background: radial-gradient(ellipse at 50% 0%, #161b22 0%, #0d1117 70%);
}

.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px 32px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.5);
}

.auth-logo-wrap { text-align: center; margin-bottom: 28px; }
.auth-icon { font-size: 44px; margin-bottom: 10px; }
.auth-logo { font-size: 26px; font-weight: 700; letter-spacing: -0.5px; }
.auth-sub { color: var(--muted); font-size: 13px; margin-top: 4px; }

.auth-tabs {
  display: flex;
  background: var(--bg3);
  border-radius: 10px;
  padding: 3px;
  margin-bottom: 22px;
}
.auth-tab {
  flex: 1;
  padding: 9px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}
.auth-tab.active { background: var(--accent); color: #fff; }

.field-group { margin-bottom: 16px; }
.field-label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; font-weight: 500; }

.field-input {
  width: 100%;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text);
  font-size: 16px; /* 16px чтобы Safari не зумировал поле */
  outline: none;
  transition: border-color 0.15s;
  -webkit-appearance: none;
}
.field-input:focus { border-color: var(--accent); }

.auth-error {
  color: #f85149;
  font-size: 13px;
  margin-bottom: 12px;
  padding: 8px 12px;
  background: rgba(248,81,73,0.1);
  border-radius: 8px;
  border: 1px solid rgba(248,81,73,0.2);
}

.auth-submit {
  width: 100%;
  padding: 14px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 4px;
  transition: opacity 0.15s, transform 0.1s;
  -webkit-appearance: none;
  touch-action: manipulation;
}
.auth-submit:hover { opacity: 0.9; }
.auth-submit:active { transform: scale(0.98); }
.auth-submit:disabled { opacity: 0.5; cursor: not-allowed; }

/* ===== APP ===== */
.app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
}

/* HEADER */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  padding-top: env(safe-area-inset-top);
  height: calc(52px + env(safe-area-inset-top));
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.header-left { display: flex; align-items: center; gap: 8px; }
.header-logo { font-size: 15px; font-weight: 700; letter-spacing: -0.3px; }

.conn-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--muted);
  transition: background 0.3s;
}
.conn-dot.online { background: var(--ok); }
.conn-dot.error  { background: var(--danger); }
.header-status { font-size: 12px; color: var(--muted); }

.logout-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.logout-btn:hover { background: var(--bg3); color: var(--text); }

/* MAIN */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
  padding: 40px 20px;
  padding-bottom: max(40px, calc(24px + env(safe-area-inset-bottom)));
  overflow-y: auto;
}

/* КНОПКА ПИЗДЕЦ */
.pizdets-btn {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: none;
  background: var(--danger);
  color: #fff;
  font-size: 24px;
  font-weight: 900;
  letter-spacing: 0.05em;
  cursor: pointer;
  box-shadow:
    0 0 0 8px rgba(218,54,51,0.15),
    0 0 0 18px rgba(218,54,51,0.07),
    0 10px 50px rgba(218,54,51,0.5);
  transition: transform 0.12s, box-shadow 0.12s, background 0.12s;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  flex-shrink: 0;
}
.pizdets-btn:hover {
  background: var(--danger-dark);
  box-shadow:
    0 0 0 10px rgba(218,54,51,0.2),
    0 0 0 22px rgba(218,54,51,0.1),
    0 14px 60px rgba(218,54,51,0.6);
  transform: scale(1.05);
}
.pizdets-btn:active { transform: scale(0.93); }
.pizdets-btn.fire { animation: pfire 0.4s ease; }
@keyframes pfire {
  0%  { transform: scale(1); }
  35% { transform: scale(1.18); }
  100%{ transform: scale(1); }
}

/* ОНЛАЙН */
.online-box {
  width: 100%;
  max-width: 360px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.online-title {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
}

.online-badge {
  background: var(--ok);
  color: #0d1117;
  font-size: 11px;
  font-weight: 700;
  border-radius: 999px;
  padding: 1px 7px;
  min-width: 20px;
  text-align: center;
}

.user-list { list-style: none; }

.user-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--border);
}
.user-item:last-child { border-bottom: none; }

.user-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.user-name {
  font-size: 14px;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-name-me { color: var(--muted); font-size: 12px; margin-left: 4px; }

.online-empty {
  padding: 20px 16px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  opacity: 0.6;
}

.install-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  max-width: 360px;
  padding: 13px 20px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  touch-action: manipulation;
}
.install-btn:hover { background: var(--bg2); color: var(--text); border-color: var(--accent); }

/* TOAST */
.toast {
  position: fixed;
  top: calc(62px + env(safe-area-inset-top));
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  background: var(--danger);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: 999px;
  z-index: 9999;
  box-shadow: 0 4px 24px rgba(218,54,51,0.5);
  opacity: 0;
  transition: opacity 0.22s, transform 0.22s;
  pointer-events: none;
  white-space: nowrap;
  max-width: calc(100vw - 32px);
  text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.hidden { display: none !important; }

/* ===== МОБИЛЬНЫЙ (<= 480px) ===== */
@media (max-width: 480px) {
  .auth-card { padding: 28px 20px; border-radius: 16px; }

  .main {
    gap: 28px;
    justify-content: space-evenly;
  }

  .pizdets-btn {
    width: min(220px, 55vw);
    height: min(220px, 55vw);
    font-size: 22px;
  }

  .online-box { max-width: 100%; }
  .install-btn { max-width: 100%; }

  .logout-btn span { display: none; }
  .logout-btn { padding: 10px 12px; }
}