:root {
  --bg: #070c14;
  --bg-card: #0d111d;
  --bg-card-hover: #121829;
  --bg-input: #121626;
  --border: #1a2035;
  --text: #f8fafc;
  --text-secondary: #64748b;
  --accent: #1652f0;
  --accent-dim: rgba(22, 82, 240, 0.12);
  --danger: #ef4444;
  --success: #10b981;
  --radius: 16px;
  --font-sans: 'Inter', 'IBM Plex Sans', system-ui, sans-serif;
  --font-display: 'Archivo', 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

:root[data-theme='light'] {
  --bg: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --bg-input: #f1f5f9;
  --border: #e2e8f0;
  --text: #0f172a;
  --text-secondary: #64748b;
  --accent: #1652f0;
  --accent-dim: rgba(22, 82, 240, 0.08);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ─── Login ───────────────────────────────── */

.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  background: radial-gradient(circle at 10% 20%, rgba(22, 82, 240, 0.05) 0%, transparent 40%),
              radial-gradient(circle at 90% 80%, rgba(16, 185, 129, 0.04) 0%, transparent 40%),
              var(--bg);
}

.login-card {
  background: rgba(13, 17, 29, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 24px;
  padding: 48px 40px;
  width: 100%;
  max-width: 480px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35),
              0 0 80px rgba(22, 82, 240, 0.04);
  position: relative;
}

[data-theme='light'] .login-card {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.06);
}

.login-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
}

.logo-mark {
  width: 36px; height: 36px;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  border-radius: 8px;
}
.logo-mark.small { width: 28px; height: 28px; font-size: 14px; border-radius: 6px; }

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
}

.logo-badge {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .08em;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--accent-dim);
  color: var(--accent);
}

.login-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 6px;
}

.login-subtitle {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 28px;
}

.login-form { display: flex; flex-direction: column; gap: 12px; }

.field-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.field-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  outline: none;
  transition: all 0.2s ease;
}
.field-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 12px 24px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px var(--accent-dim);
}
.btn-primary:hover {
  opacity: 0.95;
  transform: translateY(-0.5px);
  box-shadow: 0 6px 16px var(--accent-dim);
}
.btn-primary:active {
  transform: translateY(0.5px);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 18px;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.btn-secondary:hover {
  border-color: var(--accent);
  background: var(--bg-card-hover);
}

.btn-sm { padding: 8px 16px; font-size: 12px; }

.btn-icon {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  width: 36px; height: 36px;
  color: var(--text);
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}
.btn-icon:hover {
  border-color: var(--accent);
  background: var(--bg-card-hover);
}

.login-error {
  color: var(--danger);
  font-size: 13px;
  text-align: center;
}

.login-alt {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  text-align: center;
}
.login-alt p { color: var(--text-secondary); font-size: 12px; margin-bottom: 12px; }

/* ─── Auth Tabs ───────────────────────────── */
.auth-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 24px;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--bg-input);
}
.auth-tab {
  flex: 1;
  padding: 12px 0;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .02em;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.2s ease;
}
.auth-tab.active {
  background: var(--accent);
  color: #fff;
}
.auth-tab:not(.active):hover {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
}

.auth-pane { /* shown/hidden via JS */ }

.field-hint {
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
  opacity: .65;
  font-size: 11px;
}

.reg-terms {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
  text-align: center;
}
.reg-terms strong { color: var(--accent); }

/* ─── Fast Registration ───────────────────── */
.fast-reg-box {
  text-align: center;
  padding: 28px 0;
}
.fast-reg-icon {
  font-size: 48px;
  margin-bottom: 16px;
  line-height: 1;
}
.fast-reg-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
  max-width: 320px;
  margin-left: auto;
  margin-right: auto;
}
.fast-reg-text strong { color: var(--text); font-weight: 600; }

.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
  border-radius: 10px;
  letter-spacing: .02em;
}

/* Key result screen */
.key-result {
  text-align: center;
  padding: 16px 0;
}
.key-result-icon {
  font-size: 52px;
  margin-bottom: 12px;
  line-height: 1;
}
.key-result-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
}
.key-result-hint {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
.key-display {
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 14px 18px;
  background: var(--bg-input);
  border: 2px solid var(--accent);
  border-radius: 10px;
  color: var(--text);
  word-break: break-all;
  user-select: all;
  margin-bottom: 12px;
  line-height: 1.5;
  letter-spacing: .02em;
}
.copy-status {
  display: inline-block;
  margin-left: 8px;
  font-size: 13px;
  color: var(--accent);
  font-weight: 600;
}
.key-warning {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 10px 14px;
  background: rgba(220, 120, 0, .08);
  border: 1px solid rgba(220, 120, 0, .2);
  border-radius: 8px;
  font-size: 12px;
  color: #c57600;
  text-align: left;
}
[data-theme="dark"] .key-warning {
  background: rgba(220, 160, 40, .1);
  border-color: rgba(220, 160, 40, .2);
  color: #daa520;
}
.key-warning svg { flex-shrink: 0; color: inherit; }

.mono-input {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .03em;
}

.reg-success {
  text-align: center;
  padding: 20px 0;
}
.reg-success h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--accent);
}
.reg-success p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}
.reg-success code {
  display: inline-block;
  margin: 8px 0;
  padding: 6px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text);
  user-select: all;
  word-break: break-all;
}

.apikey-row {
  display: flex;
  gap: 8px;
}
.apikey-row .field-input { flex: 1; font-family: var(--font-mono); font-size: 12px; }

/* ─── App Shell ───────────────────────────── */

.app-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 40px;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.header-left, .header-right { display: flex; align-items: center; gap: 10px; }

.header-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
}

.header-badge {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .06em;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(74,222,128,.15);
  color: var(--success);
}

.partner-name {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ─── Tabs ────────────────────────────────── */

.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}

.tab {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 10px 18px;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color .15s, border-color .15s;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

.tab-content { display: none; }
.tab-content.active { display: block; }

/* ─── Stats Grid ──────────────────────────── */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.stat-card.accent { border-color: var(--accent); }

.stat-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
}

/* ─── Tracking Link ───────────────────────── */

.section-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: .04em;
}

.tracking-link-box {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 32px;
}
.tracking-link-box code {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  word-break: break-all;
}

/* ─── Data Table ──────────────────────────── */

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th {
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-secondary);
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

.data-table tr:hover td {
  background: var(--bg-card-hover);
}

.daily-table-wrap {
  max-height: 400px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

/* ─── Links Section ───────────────────────── */

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

.new-link-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ─── Registration Mode Grid ──────────────── */

.reg-mode-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 20px;
}

.reg-mode-card {
  background: var(--bg-card-hover);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  text-align: left;
  transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
  position: relative;
  width: 100%;
}
.reg-mode-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 16px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), transparent);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.reg-mode-card:hover {
  border-color: var(--accent);
  background: rgba(22, 82, 240, 0.04);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(22, 82, 240, 0.08);
}

.reg-mode-icon {
  font-size: 32px;
  line-height: 1;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--accent-dim);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.15));
}

.reg-mode-info {
  flex: 1;
  min-width: 0;
}

.reg-mode-title {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text);
}

.reg-mode-desc {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 0;
  min-height: 0;
}

.reg-mode-action {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-shrink: 0;
  width: 156px;
}

.reg-mode-action .field-input {
  padding: 8px 12px;
  font-size: 13px;
  border-radius: 8px;
  margin-bottom: 0 !important;
}

.reg-mode-action .btn-primary {
  padding: 10px 14px;
  font-size: 13px;
  border-radius: 8px;
  width: 100%;
}

@media (max-width: 460px) {
  .reg-mode-card {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
    padding: 20px;
    gap: 12px;
  }
  .reg-mode-icon {
    margin: 0 auto;
  }
  .reg-mode-action {
    width: 100%;
    margin-top: 8px;
  }
}

.reg-join-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.reg-join-text {
  font-size: 13px;
  color: var(--text-secondary);
}

.join-team-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
  padding: 20px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 12px;
}

/* ─── Account Type Badge ──────────────────── */

.account-type-badge {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .06em;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--accent-dim);
  color: var(--accent);
}
.account-type-badge.team-badge {
  background: rgba(99, 102, 241, .12);
  color: #818cf8;
}
[data-theme="light"] .account-type-badge.team-badge {
  background: rgba(79, 70, 229, .1);
  color: #6366f1;
}

/* ─── Team Panel ──────────────────────────── */

.team-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.team-header-left { display: flex; align-items: center; gap: 12px; }

.team-name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
}

.team-role-badge {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .06em;
  padding: 3px 10px;
  border-radius: 4px;
}
.team-role-badge.role-owner {
  background: rgba(201, 168, 76, .15);
  color: var(--accent);
}
.team-role-badge.role-member {
  background: rgba(99, 102, 241, .12);
  color: #818cf8;
}

.team-invite-section { margin-bottom: 24px; }

.role-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .04em;
  padding: 2px 8px;
  border-radius: 4px;
}
.role-tag.owner {
  background: rgba(201, 168, 76, .15);
  color: var(--accent);
}
.role-tag.member {
  background: rgba(99, 102, 241, .12);
  color: #818cf8;
}

.danger-btn {
  border-color: var(--danger) !important;
  color: var(--danger) !important;
}
.danger-btn:hover {
  background: var(--danger) !important;
  color: #fff !important;
}

.team-leave-section {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

/* Edit team modal */
.edit-team-modal {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.edit-team-inner {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  width: 100%;
  max-width: 380px;
}
.edit-team-inner h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
}
.edit-team-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

/* Solo join section */
.solo-join-section {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.solo-join-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}
.solo-join-row {
  display: flex;
  gap: 10px;
  align-items: center;
}
.solo-join-row .field-input { flex: 1; }
.solo-join-ok {
  font-size: 13px;
  color: var(--success);
  margin-top: 8px;
}

.text-muted { color: var(--text-secondary); font-size: 12px; }

/* ─── Responsive ──────────────────────────── */

@media (max-width: 640px) {
  .login-card { padding: 32px 24px; }
  .reg-mode-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .data-table { font-size: 12px; }
  .data-table th, .data-table td { padding: 8px 6px; }
  .tabs { overflow-x: auto; flex-wrap: nowrap; }
  .tab { white-space: nowrap; padding: 8px 12px; }
}