/* ============================================================================
   Login page — minimal, centered, with subtle ambient backdrop.
   ============================================================================ */

.login-page {
  position: relative;
  display: grid; place-items: center;
  min-height: 100vh; min-height: 100dvh;
  padding: var(--s-6) var(--s-4);
  overflow: hidden;
}

/* Ambient backdrop */
.login-bg { position: fixed; inset: 0; z-index: 0; pointer-events: none; }
.login-bg__glow {
  position: absolute; width: 60vmax; height: 60vmax;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.42;
}
.login-bg__glow--1 {
  top: -20vmax; left: -10vmax;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
}
.login-bg__glow--2 {
  bottom: -25vmax; right: -15vmax;
  background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
  opacity: 0.28;
}
.login-bg__grid {
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255,255,255,0.04) 1px, transparent 0);
  background-size: 32px 32px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
}

/* Shell */
.login-shell {
  position: relative; z-index: 1;
  display: grid; gap: var(--s-8);
  width: 100%; max-width: 420px;
}

.login-brand {
  display: flex; align-items: center; gap: var(--s-3);
}
.login-brand__mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--accent), #d97706);
  color: #1a0e00;
  border-radius: var(--r-sm);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.35), inset 0 1px 0 rgba(255,255,255,0.2);
}
.login-brand__mark svg { width: 22px; height: 22px; }
.login-brand__title { font-size: var(--text-lg); font-weight: 700; letter-spacing: -0.02em; }
.login-brand__sub   { font-size: var(--text-sm); color: var(--muted); margin-top: 2px; }

/* Card */
.login-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: var(--s-6);
  box-shadow: var(--shadow-lg);
}

/* Tabs */
.login-tabs {
  position: relative;
  display: grid; grid-template-columns: 1fr 1fr;
  background: var(--surface-2);
  padding: 4px;
  border-radius: var(--r-sm);
  margin-bottom: var(--s-6);
}
.login-tab {
  position: relative; z-index: 2;
  padding: 10px 0;
  font-size: var(--text-sm); font-weight: 600;
  color: var(--muted);
  border-radius: 6px;
  transition: color var(--t-snap);
}
.login-tab.is-active { color: var(--ink); }
.login-tabs__indicator {
  position: absolute; z-index: 1;
  top: 4px; left: 4px;
  width: calc(50% - 4px); height: calc(100% - 8px);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: transform var(--t-normal);
}
.login-tabs[data-active="register"] .login-tabs__indicator { transform: translateX(100%); }

/* Form */
.login-form { display: grid; gap: var(--s-4); }
.login-info {
  font-size: var(--text-sm); color: var(--ink-soft);
  background: var(--surface-2); padding: var(--s-3); border-radius: var(--r-sm);
  border: 1px solid var(--border);
}
.login-info strong { color: var(--accent-hover); font-weight: 600; }

.login-status {
  font-size: var(--text-sm); padding: var(--s-3);
  border-radius: var(--r-sm); border: 1px solid var(--danger-line);
  background: var(--danger-soft); color: var(--danger-hover);
}
.login-status--ok { border-color: var(--primary-line); background: var(--primary-soft); color: var(--primary-hover); }