*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
.hidden { display: none !important; }

:root {
  /* Brand blue on midnight-blue, with agent blue as secondary/entity accent. */
  --bg:      #000048;
  --surface: #000048;
  --border:  #243070;
  --text:    #ffffff;
  --muted:   #8E9BD0;
  --accent:  #4A75E7;
  --accent2: #6AA2DC;
  --error:   #f87171;
  --radius:  10px;

  --title-grad:    linear-gradient(100deg, #4A75E7 0%, #92BBE6 30%, #B9DA99 66%, #EFDF63 100%);
  --icon-glow:     rgba(74,117,231,0.45);
  --panel-border:  rgba(255,255,255,0.08);
  --panel-divider: rgba(255,255,255,0.06);
  --btn-text:      #000048;

  --agent-color:    #A6ADB8;
  --artifact-color: #fb923c;
  --food-color:     #10b981;
}

#bg-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  font-feature-settings: "cv11", "ss01", "ss03";
  font-size: 0.9rem;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Page layout ── */
.page {
  width: 100%;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

/* ── Single frosted panel — hero left, auth card right ── */
.split-panel {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  width: 100%;
  max-width: 1140px;
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid var(--panel-border);
  border-radius: 20px;
  box-shadow: 0 8px 48px rgba(0,0,0,0.5);
  color: var(--text);
  overflow: hidden;
}

.split-divider {
  width: 1px;
  flex-shrink: 0;
  background: var(--panel-divider);
}

/* ── Hero ── */
.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  gap: 1.6rem;
  padding: 3.25rem 3rem 2.75rem;
}

/* ── Big stacked title: name then gradient subtitle ── */
.hero-title {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.4rem;
  margin: 0.1rem 0 0.2rem;
  line-height: 1;
}

.hero-title-name {
  font-size: 3.4rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: #ffffff;
  display: inline-flex;
  align-items: baseline;
  gap: 0.6rem;
}

.hero-title-icon {
  font-size: 2.4rem;
  filter: drop-shadow(0 0 16px var(--icon-glow));
}

.hero-title-tag {
  font-size: 1.65rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  background: var(--title-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-desc {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  font-size: 1.02rem;
  line-height: 1.6;
  color: #E6ECFF;
  max-width: 52ch;
  text-align: left;
}

.hero-lead {
  font-size: 1.15rem;
  font-weight: 500;
  color: #fff;
}

.hero-desc strong {
  color: #fff;
  font-weight: 600;
}

.hero-stats {
  display: flex;
  gap: 2.75rem;
  padding: 1.3rem 0;
  border-top: 1px solid rgba(255,255,255,0.07);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  align-self: stretch;
}

.hstat {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.hstat-val {
  font-size: 1.75rem;
  font-weight: 700;
  color: #E6ECFF;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

.hstat-label {
  font-size: 0.76rem;
  font-weight: 500;
  color: rgba(230,236,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.hero-links {
  display: flex;
  gap: 1.25rem;
}

.hero-link {
  font-size: 0.88rem;
  font-weight: 500;
  color: rgba(230,236,255,0.65);
  text-decoration: none;
  transition: color 0.15s;
}

.hero-link:hover { color: var(--accent); }

.hero-byline {
  margin-top: 1.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: rgba(230,236,255,0.5);
}

.hero-byline a {
  color: rgba(146,187,230,0.9);
  text-decoration: none;
  transition: color 0.15s;
}

.hero-byline a:hover { color: var(--accent); }

/* ── Auth card ── */
.card {
  width: 400px;
  flex-shrink: 0;
  padding: 3rem 2.5rem 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-persist {
  margin-top: 0.2rem;
  color: rgba(230,236,255,0.85);
}

.hero-persist strong {
  color: var(--accent);
  font-weight: 600;
}

/* ── Tabs ── */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
}

.tab {
  flex: 1;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.55rem 0;
  margin-bottom: -1px;
  transition: color 0.15s, border-color 0.15s;
}

.tab:hover { color: var(--text); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ── Form panels ── */
.forms-wrap {
  display: grid;
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  grid-area: 1 / 1;
  transition: opacity 0.15s, visibility 0.15s;
}

/* hidden form stays in the grid (keeps height) but is invisible */
.panel.hidden {
  display: flex !important;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* ── Fields ── */
.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.field label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.field input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.9rem;
  padding: 0.6rem 0.75rem;
  outline: none;
  transition: border-color 0.15s;
  width: 100%;
}

.field input:focus { border-color: var(--accent); }
.field input::placeholder { color: var(--muted); }

/* ── Password show/hide ── */
.pwd-wrap {
  position: relative;
}

.pwd-wrap input {
  padding-right: 2.5rem;
}

.pwd-toggle {
  position: absolute;
  right: 0.6rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  padding: 0;
  transition: color 0.15s;
}

.pwd-toggle:hover { color: var(--text); }

/* ── Error ── */
.error {
  color: var(--error);
  font-size: 0.8rem;
  line-height: 1.4;
}

.error.hidden { display: none; }

.success {
  color: #34d399;
  font-size: 0.8rem;
  line-height: 1.4;
}
.success.hidden { display: none; }

.forgot-link {
  display: block;
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
  text-decoration: none;
  margin-top: 0.5rem;
  transition: color 0.15s;
}
.forgot-link:hover { color: var(--accent); }

.panel-hint {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

/* ── Submit button ── */
.btn-primary {
  background: var(--accent2);
  border: none;
  border-radius: var(--radius);
  color: var(--btn-text);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.7rem 1rem;
  transition: opacity 0.15s;
  width: 100%;
}

.btn-primary:hover { opacity: 0.88; }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Footer ── */
.footer {
  text-align: center;
  border-top: 1px solid var(--border);
  padding-top: 1.1rem;
}

.footer a {
  color: var(--muted);
  font-size: 0.8rem;
  text-decoration: none;
  transition: color 0.15s;
}

.footer a:hover { color: var(--accent); }

/* ── Settings card ── */
.settings-header {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.settings-greeting {
  font-size: 1rem;
  color: var(--text);
}

.settings-email {
  font-size: 0.78rem;
  color: var(--muted);
}

.field-hint {
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.4;
}

.toggle-label {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.4;
}

.toggle-label input[type="checkbox"] {
  margin-top: 0.1rem;
  flex-shrink: 0;
  accent-color: var(--accent);
  width: 1rem;
  height: 1rem;
  cursor: pointer;
}

.btn-ghost {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.8rem;
  padding: 0;
  transition: color 0.15s;
}

.btn-ghost:hover { color: var(--error); }

.settings-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
}

/* ── Responsive — stack hero above card on narrow viewports ── */
@media (max-width: 900px) {
  .split-panel { flex-direction: column; max-width: 560px; }
  .split-divider { width: auto; height: 1px; }
  .card { width: 100%; padding: 1.75rem 2rem 2rem; }
  .hero { padding: 2.5rem 2rem 2rem; }
  .hero-desc { max-width: 100%; }
  .hero-title-name { font-size: 2.8rem; }
  .hero-title-tag { font-size: 1.4rem; }
}