:root {
  --bg: #F5F3EE;
  --surface: #FFFFFF;
  --sidebar: #1A1A18;
  --text: #1A1A18;
  --text-muted: #6B6B62;
  --accent: #C8FF00;
  --accent-dark: #5A8A00;
  --border: rgba(0,0,0,0.08);
  --radius: 6px;
  --shadow: 0 1px 4px rgba(0,0,0,.08);
  --primary: #1A1A18;
  --primary-light: #F0F0EC;
  --danger: #7F1D1D;
}

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

body {
  font-family: "Pretendard Variable", "Pretendard", "Malgun Gothic", "맑은 고딕", "Apple SD Gothic Neo", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

/* header */
header {
  background: var(--sidebar);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,.2);
}
.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
header h1 { font-size: 18px; font-weight: 700; letter-spacing: -.02em; }
.header-left { display: flex; align-items: center; gap: 10px; }
.header-actions { display: flex; gap: 10px; align-items: center; }
.header-right { display: flex; align-items: center; gap: 12px; }

/* user chip */
.user-chip { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255,255,255,.75); }
.user-name { font-weight: 600; color: rgba(255,255,255,.9); }
.plan-badge {
  background: var(--accent);
  color: var(--text);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 9999px;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.plan-badge.team { background: #B8FFAA; }
.btn-ghost {
  background: none;
  border: 1px solid rgba(255,255,255,.25);
  color: rgba(255,255,255,.85);
  padding: 8px 14px;
  min-height: 34px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all .15s;
  font-family: inherit;
}
.btn-ghost:hover { background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.4); }
.btn-upgrade {
  background: var(--accent);
  color: var(--text);
  border: none;
  padding: 8px 16px;
  min-height: 34px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity .15s;
  font-family: inherit;
}
.btn-upgrade:hover { opacity: .85; }

/* verify-email banner */
.verify-banner {
  background: #FFF3CD;
  border-bottom: 1px solid #F0C040;
  color: #5C4A00;
  padding: 10px 24px;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: center;
}
.verify-banner.hidden { display: none; }
.verify-banner .verify-msg { flex: 0 1 auto; }
.verify-banner strong { color: #1A1A18; }
.verify-banner .verify-resend {
  background: #1A1A18;
  color: #FFF;
  border: none;
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
.verify-banner .verify-resend:hover { opacity: .85; }
.verify-banner .verify-close {
  background: transparent;
  border: none;
  color: #5C4A00;
  font-size: 18px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}
@media (max-width: 768px) {
  .verify-banner { flex-wrap: wrap; padding: 10px 16px; font-size: 12px; gap: 8px; }
  .verify-banner .verify-msg { flex: 1 1 100%; }
}

/* project selector */
.project-selector-wrap { display: flex; align-items: center; gap: 4px; }
.project-select {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.2);
  color: rgba(255,255,255,.9);
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  padding: 8px 28px 8px 12px;
  min-height: 34px;
  border-radius: var(--radius);
  cursor: pointer;
  max-width: 200px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='rgba(255,255,255,.5)' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
}
.project-select option { background: #1A1A18; color: #fff; }
.btn-new-project {
  background: rgba(200,255,0,.12);
  border: 1px solid rgba(200,255,0,.3);
  color: var(--accent);
  width: 34px;
  height: 34px;
  border-radius: var(--radius);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .15s;
  font-family: inherit;
}
.btn-new-project:hover { background: rgba(200,255,0,.2); border-color: var(--accent); }

/* buttons */
.btn {
  padding: 8px 18px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: opacity .15s;
  font-family: inherit;
}
.btn:hover { opacity: .85; }
.btn-primary { background: var(--accent); color: var(--text); }
.btn-secondary { background: rgba(255,255,255,.12); color: #fff; border: 1px solid rgba(255,255,255,.3); }
.btn-sm { background: var(--sidebar); color: #fff; padding: 6px 14px; font-size: 13px; border-radius: var(--radius); }
.btn-danger { background: #FEE2E2; color: var(--danger); padding: 4px 10px; font-size: 12px; border-radius: 4px; border: none; cursor: pointer; font-family: inherit; }

/* main layout */
main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

/* tabs */
.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 20px;
}
.tab {
  padding: 10px 20px;
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: #4A4A45;
  transition: all .15s;
  margin-bottom: -2px;
  font-family: inherit;
}
.tab:hover { color: var(--text); background: rgba(0,0,0,.03); }
.tab.active { color: var(--text); border-bottom-color: var(--accent); }

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

/* forms */
h2 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
}
.mt-lg { margin-top: 28px; }

.form-grid {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 10px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  max-width: 700px;
}
.form-grid label { font-weight: 600; color: var(--text-muted); align-self: center; }
.form-grid input {
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 7px 10px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  background: var(--bg);
  transition: border-color .15s;
}
.form-grid input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200,255,0,.2);
}

/* preset bar */
.preset-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 18px;
  max-width: 700px;
  margin-bottom: 12px;
}
.preset-bar label { font-weight: 600; color: var(--text-muted); white-space: nowrap; }
.preset-bar select {
  flex: 1;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 7px 10px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  background: var(--bg);
  cursor: pointer;
  transition: border-color .15s;
}
.preset-bar select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200,255,0,.2);
}

/* grids */
.grid-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.grid-container { height: 380px; border-radius: var(--radius); overflow: hidden; }

/* summary */
#summary-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.summary-table { width: 100%; border-collapse: collapse; }
.summary-table th, .summary-table td {
  padding: 10px 14px;
  border: 1px solid var(--border);
  text-align: right;
}
.summary-table th { background: var(--sidebar); color: #fff; text-align: center; }
.summary-table td:first-child { text-align: left; font-weight: 600; }
.summary-table tr.total { background: #F7FFE5; font-weight: 700; }
.summary-table tr.ratio { background: var(--primary-light); }

.check-list { margin-top: 20px; display: flex; flex-direction: column; gap: 8px; }
.check-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 6px;
  background: #ECFFE4;
  border: 1px solid rgba(200,255,0,.35);
}
.check-item.fail { background: #FEE2E2; border-color: #FECACA; }
.check-label { font-weight: 600; flex: 1; }
.check-value { color: var(--text-muted); min-width: 100px; text-align: right; font-variant-numeric: tabular-nums; }
.check-verdict {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 9999px;
  flex-shrink: 0;
  background: #C8FF00;
  color: #1A4A00;
}
.check-item.fail .check-verdict { background: #7F1D1D; color: #FFF; }

/* toast */
.toast {
  position: fixed;
  bottom: 32px;
  right: 32px;
  background: var(--sidebar);
  color: #fff;
  padding: 12px 20px;
  border-radius: 9999px;
  font-size: 14px;
  box-shadow: 0 4px 16px rgba(0,0,0,.2);
  transition: opacity .3s;
  z-index: 9999;
}
.toast.hidden { opacity: 0; pointer-events: none; }

/* AG Grid overrides */
.ag-theme-alpine {
  --ag-font-family: "Pretendard Variable", "Pretendard", "Malgun Gothic", sans-serif;
  --ag-font-size: 13px;
  --ag-header-background-color: #1A1A18;
  --ag-header-foreground-color: #fff;
  --ag-row-hover-color: #F7FFE5;
  --ag-selected-row-background-color: #ECFFE4;
  --ag-border-color: rgba(0,0,0,0.08);
}

/* ── Auth Overlay ─────────────────────────────────────────────────────────── */
.auth-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.auth-overlay.hidden { display: none; }

.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 40px 48px;
  width: 420px;
  box-shadow: 0 8px 40px rgba(0,0,0,.08);
}
.auth-logo { font-size: 22px; font-weight: 700; color: var(--text); margin-bottom: 4px; letter-spacing: -.03em; }
.auth-tagline { font-size: 13px; color: var(--text-muted); margin-bottom: 32px; }

.auth-tabs { display: flex; border-bottom: 1px solid var(--border); margin-bottom: 24px; }
.auth-tab-btn {
  flex: 1;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 10px 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all .15s;
  margin-bottom: -1px;
  font-family: inherit;
}
.auth-tab-btn.active { color: var(--text); border-bottom-color: var(--accent); }
.auth-tab-btn:hover { color: var(--text); }

.auth-form-panel { display: none; }
.auth-form-panel.active { display: block; }

.auth-input-group { margin-bottom: 16px; }
.auth-input-group label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 6px;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.auth-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  background: var(--bg);
  transition: border-color .15s;
}
.auth-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200,255,0,.2);
}

.auth-submit {
  width: 100%;
  background: var(--accent);
  color: var(--text);
  border: none;
  padding: 12px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  margin-top: 8px;
  transition: opacity .15s;
  font-family: inherit;
}
.auth-submit:hover { opacity: .85; }
.auth-submit:disabled { opacity: .5; cursor: not-allowed; }

.auth-error {
  background: #FEE2E2;
  color: var(--danger);
  font-size: 13px;
  padding: 10px 12px;
  border-radius: 4px;
  margin-bottom: 12px;
  display: none;
}
.auth-error.visible { display: block; }

.auth-footer { text-align: center; margin-top: 20px; font-size: 12px; color: var(--text-muted); }
.auth-skip {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  text-decoration: underline;
  font-size: 12px;
  font-family: inherit;
}
.auth-skip:hover { color: var(--text); }

/* ── Upgrade Modal ─────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(26,26,24,.6);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal-overlay.hidden { display: none; }

.upgrade-modal {
  background: var(--surface);
  border-radius: 8px;
  padding: 40px;
  width: 820px;
  max-width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 32px; }
.modal-close {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-muted);
  line-height: 1;
  padding: 4px;
  font-family: inherit;
}
.modal-close:hover { color: var(--text); }
.upgrade-subtitle { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

.plan-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.plan-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: border-color .15s;
}
.plan-card:hover { border-color: rgba(0,0,0,.2); }
.plan-card.current-plan { border-color: var(--accent); background: #F7FFE5; }

.plan-name {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.plan-price { font-size: 28px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.plan-price span { font-size: 14px; font-weight: 400; color: var(--text-muted); }
.plan-features {
  list-style: none;
  padding: 0;
  margin: 20px 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.plan-features li {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.plan-features li::before { content: "✓"; color: var(--accent-dark); font-weight: 700; flex-shrink: 0; margin-top: 1px; }
.plan-cta {
  width: 100%;
  background: var(--accent);
  color: var(--text);
  border: none;
  padding: 11px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity .15s;
  font-family: inherit;
  margin-top: auto;
}
.plan-cta:hover:not(:disabled) { opacity: .85; }
.plan-cta.current-cta { background: transparent; border: 1px solid var(--border); color: var(--text-muted); cursor: default; }
.plan-cta:disabled { opacity: .5; cursor: not-allowed; }
.login-required-note { font-size: 12px; color: var(--text-muted); text-align: center; margin-top: 16px; }
.login-required-note a { color: var(--accent-dark); cursor: pointer; text-decoration: underline; }

/* ── Responsive (mobile <= 768px) ──────────────────────────────────── */
@media (max-width: 768px) {
  .header-inner {
    padding: 10px 14px;
    flex-wrap: wrap;
    gap: 8px;
    row-gap: 8px;
  }
  .header-left { flex-shrink: 0; }
  header h1 { font-size: 15px; }
  .header-actions { gap: 6px; }
  .header-actions .btn { padding: 7px 12px; font-size: 13px; }
  .header-right {
    width: 100%;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: flex-start;
    border-top: 1px solid rgba(255,255,255,.08);
    padding-top: 8px;
  }
  .project-select { max-width: 140px; font-size: 12px; padding: 4px 24px 4px 8px; }
  .btn-new-project { width: 26px; height: 26px; font-size: 16px; }
  .user-chip { font-size: 12px; gap: 6px; }
  .user-name { max-width: 80px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .btn-upgrade { padding: 4px 10px; font-size: 12px; }
  .btn-ghost { padding: 4px 10px; font-size: 12px; }

  main { padding: 16px 12px; }

  /* Tabs: horizontal scroll instead of wrap */
  .tabs {
    overflow-x: auto;
    overflow-y: hidden;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }
  .tab {
    padding: 10px 14px;
    font-size: 13px;
    white-space: nowrap;
    flex-shrink: 0;
  }

  /* Forms — single column on mobile */
  .form-grid {
    grid-template-columns: 1fr;
    gap: 4px 0;
    padding: 14px;
  }
  .form-grid label {
    margin-top: 8px;
    margin-bottom: 2px;
    font-size: 13px;
  }

  .preset-bar { flex-direction: column; align-items: stretch; padding: 10px 14px; }
  .preset-bar label { font-size: 13px; }

  /* Grid container — slightly shorter, allow horizontal scroll */
  .grid-container { height: 320px; }
  .grid-header { flex-wrap: wrap; gap: 8px; }
  .grid-header h2 { font-size: 14px; }

  /* Modals — full width on mobile */
  .modal-content { width: 92vw; max-width: none; padding: 24px; }
  .plan-cards-grid { grid-template-columns: 1fr; gap: 12px; }
}