:root {
  --bg: #0b0f14;
  --panel: #121824;
  --accent: #4f7cff;
  --text: #e6eaf0;
  --muted: #9aa4b2;
  --good: #39d98a;
  --bad: #ff6b6b;
}

:root.theme-light {
  --bg: #f6f7fb;
  --panel: #ffffff;
  --text: #111827;
  --muted: #5f6675;
  --good: #17b26a;
  --bad: #e5484d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-y: hidden !important;
}

.waves {
  position: fixed;
  inset: auto 0 -2px 0;
  height: 170px;
  z-index: -1;
  pointer-events: none;
  opacity: 0.55;
}

.waves svg {
  width: 120%;
  height: 100%;
  transform: translateX(-8%);
}

.wave1 { animation: waveMove 10s ease-in-out infinite; }
.wave2 { animation: waveMove 14s ease-in-out infinite reverse; opacity: 0.7; }

@keyframes waveMove {
  0% { transform: translateX(-8%); }
  50% { transform: translateX(-2%); }
  100% { transform: translateX(-8%); }
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 280px;
  background: linear-gradient(180deg, rgba(18,24,36,0.98), rgba(11,15,22,0.96));
  padding: 26px 24px 48px;
  border-right: 1px solid rgba(255,255,255,0.06);
  box-shadow: 18px 0 60px rgba(0,0,0,0.45);
  z-index: 1000;
}

.theme-light .nav {
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(244,246,252,0.96));
  border-right: 1px solid rgba(0,0,0,0.08);
  box-shadow: 12px 0 36px rgba(0,0,0,0.12);
}

.nav-title {
  font-weight: 800;
  font-size: 1.4rem;
  margin-bottom: 24px;
}

.nav-title-link {
  color: inherit;
  text-decoration: none;
}

.nav a {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 12px 0;
  padding: 12px 14px;
  border-radius: 12px;
  color: var(--text);
  text-decoration: none;
  font-weight: 650;
}

.nav a.active {
  background: rgba(79, 124, 255, 0.2);
  box-shadow: inset 0 0 0 1px rgba(79, 124, 255, 0.35);
}

.theme-light .nav a { color: #1f2937; }

.icon { width: 22px; text-align: center; }

.nav-quick-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-account {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin: 12px 0;
  padding: 0 !important;
}

.nav-account .label {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
  white-space: nowrap;
}

.bottom-nav {
  position: fixed !important;
  left: 0 !important;
  right: 0 !important;
  bottom: 0 !important;
  padding: 10px 12px;
  border-radius: 0;
  background: rgba(12,16,26,0.92);
  border: 1px solid rgba(255,255,255,0.08);
  display: none !important;
  justify-content: space-around;
  gap: 8px;
  z-index: 1200;
  will-change: transform;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.bottom-nav a {
  flex: 1;
  text-decoration: none;
  color: var(--muted);
  font-weight: 700;
  font-size: 0.75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 6px;
  border-radius: 14px;
}

.bottom-nav-more {
  position: relative;
  flex: 1;
}

.bottom-nav-more button {
  width: 100%;
  background: none;
  border: none;
  color: var(--muted);
  font-weight: 700;
  font-size: 0.75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 6px;
  border-radius: 14px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.bottom-nav-more button .icon {
  font-size: 1.15rem;
}

.bottom-nav-more button:hover {
  background: rgba(79,124,255,0.12);
}

.theme-light .bottom-nav-more button {
  color: #5f6675;
}

.theme-light .bottom-nav a:hover {
  color: #0f172a;
  background: rgba(79,124,255,0.12);
}

.theme-light .bottom-nav-more button:hover {
  color: #0f172a;
}

.bottom-nav-more-menu {
  position: absolute;
  bottom: calc(100% + 12px);
  right: 0;
  background: rgba(12,16,26,0.96);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 16px;
  padding: 8px;
  min-width: 180px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
  backdrop-filter: blur(12px);
  display: none !important;
  flex-direction: column;
  gap: 4px;
  z-index: 1250;
}

.bottom-nav-more-menu.active {
  display: flex;
}

.theme-light .bottom-nav-more-menu {
  background: rgba(255,255,255,0.96);
  border: 1px solid rgba(0,0,0,0.12);
}

.bottom-nav-more-menu a {
  padding: 12px 16px;
  color: var(--text);
  text-decoration: none;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: background 0.2s ease;
}

.bottom-nav-more-menu a:hover {
  background: rgba(79,124,255,0.15);
}

.bottom-nav-more-menu a .icon {
  font-size: 1.2rem;
}

.main {
  padding: 112px 24px 140px;
  max-width: 1100px;
  margin: 0 auto 0 280px;
  width: calc(100% - 280px);
  display: grid;
  gap: 16px;
}

.title {
  font-size: 2rem;
  margin: 0;
}

.subtitle {
  margin-top: 6px;
  color: var(--muted);
  font-weight: 700;
}

.card {
  background: linear-gradient(145deg, rgba(20,27,46,0.95), rgba(15,21,36,0.92));
  border-radius: 18px;
  padding: 28px;
  border: 1px solid rgba(255,255,255,0.06);
}

.theme-light .card {
  background: linear-gradient(145deg, rgba(255,255,255,0.98), rgba(238,242,248,0.98));
  border: 1px solid rgba(0,0,0,0.08);
}

.profile {
  display: flex;
  align-items: center;
  gap: 14px;
}

.avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid rgba(79,124,255,0.4);
  box-shadow: 0 0 20px rgba(79,124,255,0.15);
}

.profile-name { font-weight: 900; font-size: 1.25rem; }
.profile-username, .profile-email { color: var(--muted); font-weight: 700; margin-top: 4px; font-size: 0.92rem; }

.status {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.theme-light .status { border-top-color: rgba(0,0,0,0.06); }

.status-text {
  font-weight: 900;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-text::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--bad);
  flex-shrink: 0;
  box-shadow: 0 0 8px var(--bad);
}

.status-text.signed-in::before {
  background: var(--good);
  box-shadow: 0 0 8px var(--good);
}

.status-sub { color: var(--muted); font-weight: 700; font-size: 0.9rem; }
.guest-row { color: var(--muted); font-weight: 700; font-size: 0.85rem; width: 100%; margin-top: 4px; }
.guest-row code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: rgba(79,124,255,0.16);
  padding: 2px 8px;
  border-radius: 8px;
  color: var(--text);
}

#signedInPanel h2,
.stats-card h2 {
  font-size: 1.1rem;
  font-weight: 900;
  margin: 0 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  color: var(--text);
}

.theme-light #signedInPanel h2,
.theme-light .stats-card h2 {
  border-bottom-color: rgba(0,0,0,0.06);
}

#signedInPanel {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.theme-light #signedInPanel {
  border-top-color: rgba(0,0,0,0.06);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.full-span { grid-column: 1 / -1; }

.label {
  display: block;
  font-weight: 800;
  font-size: 0.88rem;
  margin: 10px 0 6px;
  color: var(--muted);
}

.input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(18,24,36,0.85);
  color: var(--text);
  font-weight: 700;
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input:focus {
  outline: none;
  border-color: rgba(79,124,255,0.5);
  box-shadow: 0 0 0 3px rgba(79,124,255,0.12);
}

.theme-light .input {
  background: rgba(0,0,0,0.04);
  border-color: rgba(0,0,0,0.12);
}

.theme-light .input:focus {
  border-color: rgba(79,124,255,0.5);
  box-shadow: 0 0 0 3px rgba(79,124,255,0.1);
}

.input-readonly {
  opacity: 0.75;
  cursor: not-allowed;
}

.button-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 20px;
}

.btn {
  padding: 13px 16px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(79,124,255,0.16);
  color: var(--text);
  font-weight: 900;
  cursor: pointer;
  width: 100%;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.25s ease, filter 0.25s ease;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(79,124,255,0.3);
  transform: translate(-50%, -50%);
  transition: width 0.5s ease, height 0.5s ease;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow:
    0 10px 28px rgba(79,124,255,0.25),
    0 0 25px rgba(79,124,255,0.15);
  filter: brightness(1.15);
}

.btn:active {
  transform: translateY(0) scale(1);
  transition: transform 0.1s ease;
}

.provider-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 8px;
}

#signInFormPanel .btn,
#signUpFormPanel .btn {
  margin-top: 10px;
}

.btn.ghost {
  background: rgba(255,255,255,0.04);
}

.btn.ghost:hover {
  box-shadow:
    0 10px 25px rgba(255,255,255,0.08),
    0 0 20px rgba(255,255,255,0.05);
}

.btn.danger {
  background: rgba(255,107,107,0.14);
  border-color: rgba(255,107,107,0.24);
}

.btn.danger:hover {
  box-shadow:
    0 10px 28px rgba(255,107,107,0.25),
    0 0 25px rgba(255,107,107,0.15);
}

.btn.provider.google {
  background: rgba(79,124,255,0.20);
}

.btn.provider.google:hover {
  box-shadow:
    0 10px 28px rgba(79,124,255,0.3),
    0 0 28px rgba(79,124,255,0.2);
}

.btn.provider.microsoft {
  background: rgba(57,217,138,0.18);
}

.btn.provider.microsoft:hover {
  box-shadow:
    0 10px 28px rgba(57,217,138,0.25),
    0 0 25px rgba(57,217,138,0.15);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.stat-box {
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(12,16,26,0.35);
  border-radius: 14px;
  padding: 16px;
  text-align: center;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.stat-box:hover {
  border-color: rgba(79,124,255,0.25);
  transform: translateY(-2px);
}

.theme-light .stat-box {
  border: 1px solid rgba(0,0,0,0.08);
  background: rgba(15,23,42,0.03);
}

.stat-label { color: var(--muted); font-weight: 700; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.02em; }
.stat-value { margin-top: 8px; font-weight: 900; font-size: 1.4rem; color: var(--accent); }

.brand-icon {
  width: 20px;
  height: 20px;
  margin-right: 10px;
  object-fit: contain;
  border-radius: 4px;
  background: rgba(255,255,255,0.9);
  padding: 2px;
}

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 14px 0;
  color: var(--muted);
  font-weight: 800;
}

.divider::before,
.divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: rgba(255,255,255,0.10);
}

.tiny-link {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.88rem;
}

.tiny-link a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 800;
}

.status-note {
  min-height: 18px;
  font-size: 0.85rem;
  font-weight: 800;
  margin-top: 6px;
}

.status-note.good { color: var(--good); }
.status-note.bad { color: var(--bad); }
.error { color: var(--bad); min-height: 20px; margin-top: 10px; font-weight: 800; }
.hidden { display: none !important; }

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.58);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1400;
  padding: 20px;
}

.modal-card {
  width: min(760px, 100%);
  max-height: 90vh;
  overflow: auto;
  border-radius: 18px;
  background: var(--panel);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 18px;
  transform-origin: top center;
}

.modal.modal-enter {
  animation: modalFadeIn 220ms ease-out;
}

.modal.modal-enter .modal-card {
  animation: modalWhooshIn 360ms cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.icon-btn {
  border: 0;
  background: transparent;
  color: var(--text);
  font-size: 1.8rem;
  cursor: pointer;
}

.tab-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 10px 0 14px;
}

.tab {
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.02);
  color: var(--text);
  padding: 10px 12px;
  font-weight: 800;
  cursor: pointer;
}

.tab.active {
  background: rgba(79,124,255,0.20);
  border-color: rgba(79,124,255,0.35);
}

.hamburger, .overlay { display: none; }

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modalWhooshIn {
  from {
    opacity: 0;
    transform: translateY(-22px) scale(0.97);
    filter: blur(2px);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .modal,
  .modal-card {
    animation: none;
  }
}

@media (max-width: 960px) {
  .form-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .provider-row { grid-template-columns: 1fr; }
}

@media (max-width: 820px) {
  .nav, .overlay, .hamburger { display: none; }
  .main {
    margin-left: 0;
    width: 100%;
    max-width: 100%;
    padding: 96px 20px 170px;
  }
  .bottom-nav { display: flex; }
}

@media (max-width: 540px) {
  .button-row,
  .stats-grid {
    grid-template-columns: 1fr;
  }
}