:root {
  --bg: #050816;
  --bg-elevated: rgba(17, 25, 40, 0.85);
  --bg-card: rgba(15, 23, 42, 0.95);
  --accent: #6366f1;
  --accent-soft: rgba(99, 102, 241, 0.3);
  --accent-strong: #4f46e5;
  --danger: #f97373;
  --text-main: #e5e7eb;
  --text-soft: #9ca3af;
  --border-subtle: rgba(148, 163, 184, 0.4);
  --shadow-soft: 0 22px 40px rgba(15, 23, 42, 0.65);
  --radius-lg: 18px;
  --radius-md: 10px;
  --radius-pill: 999px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  color: var(--text-main);
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.app-shell {
  width: 100%;
  max-width: 960px;
}

.card {
  background: var(--bg-card);
  border-radius: 24px;
  padding: 28px 26px 24px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(148, 163, 184, 0.25);
  backdrop-filter: blur(26px);
}

.app-title {
  margin: 0 0 18px;
  font-size: 1.55rem;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: flex-end;
}

h2 {
  margin: 0 0 16px;
  font-size: 1.25rem;
}

.subtitle {
  margin: 2px 0 0;
  color: var(--text-soft);
  font-size: 0.9rem;
}

.view.hidden {
  display: none;
}

form {
  margin-top: 10px;
}

.field {
  margin-bottom: 14px;
}

label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.86rem;
  color: var(--text-soft);
}

input,
select,
textarea {
  width: 100%;
  padding: 9px 11px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background-color: rgba(15, 23, 42, 0.85);
  color: var(--text-main);
  font: inherit;
  outline: none;
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    background-color 0.18s ease,
    transform 0.05s ease;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(99, 102, 241, 0.5);
  background-color: rgba(15, 23, 42, 0.9);
}

input.error-state,
select.error-state,
textarea.error-state {
  border-color: var(--danger);
  box-shadow: 0 0 0 1px rgba(248, 113, 113, 0.6);
}

.error {
  display: block;
  margin-top: 4px;
  min-height: 16px;
  font-size: 0.78rem;
  color: var(--danger);
}

.btn {
  border: none;
  border-radius: var(--radius-pill);
  padding: 9px 18px;
  font: inherit;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition:
    background-color 0.16s ease,
    color 0.16s ease,
    box-shadow 0.16s ease,
    transform 0.06s ease;
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: white;
  box-shadow:
    0 10px 20px rgba(15, 23, 42, 0.9),
    0 0 0 1px rgba(129, 140, 248, 0.55);
}

.btn.primary:hover {
  transform: translateY(-0.5px);
  box-shadow:
    0 13px 26px rgba(15, 23, 42, 0.95),
    0 0 0 1px rgba(129, 140, 248, 0.85);
}

.btn.primary:active {
  transform: translateY(1px) scale(0.99);
  box-shadow:
    0 4px 14px rgba(15, 23, 42, 0.9),
    0 0 0 1px rgba(129, 140, 248, 0.65);
}

.btn.ghost {
  background-color: rgba(15, 23, 42, 0.7);
  color: var(--text-soft);
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.5);
}

.btn.ghost:hover {
  background-color: rgba(15, 23, 42, 0.95);
  color: var(--text-main);
}

.profile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.welcome-text {
  margin: 0;
  font-weight: 500;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 16px;
}

fieldset {
  border-radius: 16px;
  border: 1px solid rgba(148, 163, 184, 0.25);
  padding: 10px 12px 8px;
  margin: 0 0 10px;
}

legend {
  padding: 0 6px;
  font-size: 0.83rem;
  color: var(--text-soft);
}

.inline-options {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin-top: 4px;
}

.inline-options label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 0;
}

.checkbox-row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 0.86rem;
  color: var(--text-soft);
}

.checkbox-row input[type="checkbox"] {
  width: auto;
}

textarea {
  resize: vertical;
  min-height: 64px;
}

.form-footer {
  margin-top: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.status {
  font-size: 0.8rem;
  color: var(--text-soft);
}

.status.success {
  color: #4ade80;
}

.status.error {
  color: var(--danger);
}

/* Auth tabs and links */
.auth-tabs {
  display: inline-flex;
  align-items: center;
  background-color: rgba(15, 23, 42, 0.9);
  border-radius: 999px;
  padding: 3px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  margin-bottom: 18px;
}

.tab {
  border-radius: 999px;
  border: none;
  padding: 6px 16px;
  background: transparent;
  color: var(--text-soft);
  font-size: 0.86rem;
  cursor: pointer;
  transition:
    background-color 0.16s ease,
    color 0.16s ease,
    box-shadow 0.16s ease;
}

.tab.active {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.9), #4f46e5);
  color: #f9fafb;
  box-shadow: 0 6px 14px rgba(15, 23, 42, 0.7);
}

.auth-switch {
  margin-top: 10px;
  font-size: 0.82rem;
  color: var(--text-soft);
}

.link-button {
  border: none;
  background: none;
  padding: 0;
  margin: 0;
  color: var(--accent);
  font: inherit;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Login layout tweaks */
#login-view {
  max-width: 420px;
}

/* Responsive */
@media (max-width: 720px) {
  .card {
    padding: 20px 18px 18px;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .profile-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .form-footer {
    flex-direction: column-reverse;
    align-items: stretch;
  }

  .form-footer .btn {
    width: 100%;
  }
}