:root {
  --bg: #0f1220;
  --bg-grad-1: #171a2e;
  --bg-grad-2: #0b0d18;
  --card: #1a1e34;
  --card-border: #2a2f4a;
  --text: #eceefb;
  --muted: #9aa0c0;
  --primary: #6c8cff;
  --primary-hover: #5a7bf5;
  --danger: #ff6b81;
  --ok: #4ade80;
  --field: #12152a;
  --field-border: #303655;
  --radius: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 50% -10%, var(--bg-grad-1), transparent),
    linear-gradient(180deg, var(--bg-grad-2), var(--bg));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.card {
  width: 100%;
  max-width: 400px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 28px 26px 30px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}

.logo {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), #a06bff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: #fff;
}

.brand h1 { font-size: 1.15rem; margin: 0; }
.subtitle { margin: 2px 0 0; color: var(--muted); font-size: 0.85rem; }

.tabs {
  display: flex;
  background: var(--field);
  border: 1px solid var(--field-border);
  border-radius: 12px;
  padding: 4px;
  margin-bottom: 20px;
}

.tab {
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 9px 0;
  border-radius: 9px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.tab.is-active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(108, 140, 255, 0.35);
}

.form { display: grid; gap: 14px; }
.field { display: grid; gap: 6px; }
.field span { font-size: 0.8rem; color: var(--muted); }

.field input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 11px;
  border: 1px solid var(--field-border);
  background: var(--field);
  color: var(--text);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(108, 140, 255, 0.18);
}

.btn {
  border: 0;
  border-radius: 11px;
  padding: 12px 16px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, opacity 0.15s ease;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-primary:disabled { opacity: 0.6; cursor: default; }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--field-border);
  color: var(--muted);
  margin-top: 14px;
  width: 100%;
}
.btn-ghost:hover { color: var(--text); border-color: var(--primary); }

.divider {
  display: flex;
  align-items: center;
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  margin: 20px 0 16px;
}
.divider::before, .divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--field-border);
}
.divider span { padding: 0 12px; }

.google-slot { display: flex; flex-direction: column; align-items: center; min-height: 44px; }
#google-btn { display: flex; justify-content: center; width: 100%; }

.hint { color: var(--muted); font-size: 0.82rem; text-align: center; margin: 6px 0 0; }

.status {
  margin: 16px 0 0;
  padding: 11px 14px;
  border-radius: 11px;
  font-size: 0.86rem;
  text-align: center;
}
.status.is-error { background: rgba(255, 107, 129, 0.12); color: var(--danger); border: 1px solid rgba(255, 107, 129, 0.3); }
.status.is-ok { background: rgba(74, 222, 128, 0.12); color: var(--ok); border: 1px solid rgba(74, 222, 128, 0.3); }

.session {
  margin-top: 22px;
  padding: 18px;
  border-radius: 14px;
  background: var(--field);
  border: 1px solid var(--field-border);
}
.session h2 { margin: 0 0 12px; font-size: 1rem; color: var(--ok); }
.session-label { margin: 10px 0 4px; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.5px; color: var(--muted); }
.session-value {
  display: block;
  word-break: break-all;
  font-size: 0.8rem;
  background: #0c0f1e;
  border: 1px solid var(--field-border);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--text);
}
.session-token { max-height: 96px; overflow: auto; }

.is-hidden { display: none !important; }