:root {
  /* Surfaces */
  --bg:        #08090d;
  --surface-1: #0f1117;
  --surface-2: #171b24;
  --surface-3: #1e2230;

  /* Borders */
  --border-subtle:  rgba(255,255,255,0.05);
  --border-default: rgba(255,255,255,0.09);
  --border-strong:  rgba(255,255,255,0.15);

  /* Text */
  --text-1: #edf0f7;
  --text-2: #8890a6;
  --text-3: #50566a;

  /* Accent */
  --accent:       #5b8af0;
  --accent-glow:  rgba(91,138,240,0.20);

  /* Status */
  --ok:          #22c55e;
  --ok-bg:       rgba(34,197,94,0.12);
  --ok-border:   rgba(34,197,94,0.30);

  --warning:     #f59e0b;
  --warning-bg:  rgba(245,158,11,0.12);
  --warning-border: rgba(245,158,11,0.30);

  --critical:    #ef4444;
  --critical-bg: rgba(239,68,68,0.12);
  --critical-border: rgba(239,68,68,0.30);

  --neutral-bg:  rgba(136,144,166,0.10);

  /* Radii */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 20px;

  /* Shadows */
  --shadow-card: 0 1px 3px rgba(0,0,0,0.4), 0 4px 16px rgba(0,0,0,0.25);
  --shadow-card-hover: 0 2px 8px rgba(0,0,0,0.5), 0 8px 32px rgba(0,0,0,0.35);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text-1);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }

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

.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse 60% 50% at 50% -10%, rgba(91,138,240,0.12) 0%, transparent 70%),
    var(--bg);
}

.login-card {
  background: var(--surface-1);
  border: 1px solid var(--border-default);
  border-radius: var(--r-xl);
  padding: 48px 40px;
  width: 100%;
  max-width: 380px;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.login-logo {
  width: 48px;
  height: 48px;
  border-radius: var(--r-md);
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.5px;
}

.login-card h1 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.3px;
  margin-bottom: 8px;
}

.login-card p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.5;
  margin-bottom: 28px;
}

.btn-google {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 22px;
  background: var(--surface-3);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md);
  color: var(--text-1);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
}

.btn-google:hover {
  background: var(--surface-3);
  border-color: var(--border-strong);
  filter: brightness(1.12);
  transform: translateY(-1px);
}

.btn-google svg { flex-shrink: 0; }

/* ─── Layout ─────────────────────────────────────────────────── */

.app { display: flex; flex-direction: column; min-height: 100vh; }

/* ─── Header ─────────────────────────────────────────────────── */

.header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 32px;
  height: 64px;
  background: rgba(8,9,13,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

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

.header-logo {
  width: 32px;
  height: 32px;
  border-radius: var(--r-sm);
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.header-title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.2px;
}

.header-date {
  font-size: 13px;
  color: var(--text-2);
  margin-top: 1px;
}

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

.total-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--accent-glow);
  border: 1px solid rgba(91,138,240,0.25);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: #a8c0f8;
}

.total-badge-label {
  font-weight: 400;
  color: var(--text-2);
  font-size: 12px;
}

.header-email {
  font-size: 13px;
  color: var(--text-2);
}

.btn-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  text-decoration: none;
  padding: 5px 10px;
  border-radius: var(--r-sm);
  transition: background 0.15s, color 0.15s;
}

.btn-link:hover {
  background: var(--surface-3);
  color: var(--text-1);
}

/* ─── Main ───────────────────────────────────────────────────── */

main {
  flex: 1;
  padding: 28px 32px;
}

.section-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-3);
  margin-bottom: 16px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 14px;
}

/* ─── Card ───────────────────────────────────────────────────── */

.card {
  position: relative;
  background: var(--surface-1);
  border: 1px solid var(--border-default);
  border-radius: var(--r-lg);
  padding: 20px;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  border-radius: var(--r-lg) 0 0 var(--r-lg);
  background: var(--status-color, var(--border-default));
}

.card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-1px);
  border-color: var(--border-strong);
}

.card.status-ok     { --status-color: var(--ok); }
.card.status-warning { --status-color: var(--warning); }
.card.status-critical { --status-color: var(--critical); }
.card.status-error  { --status-color: var(--border-default); }

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

.card-title {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-2);
}

.status-pill {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid transparent;
}

.status-pill.ok       { background: var(--ok-bg);       color: var(--ok);       border-color: var(--ok-border); }
.status-pill.warning  { background: var(--warning-bg);  color: var(--warning);  border-color: var(--warning-border); }
.status-pill.critical { background: var(--critical-bg); color: var(--critical); border-color: var(--critical-border); }
.status-pill.error    { background: var(--neutral-bg);  color: var(--text-2); }

.card-cost {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1;
  margin-bottom: 4px;
}

.card-projected {
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 14px;
}

.card-projected strong {
  color: var(--text-1);
  font-weight: 600;
}

/* Progress */
.progress-wrap {
  margin-bottom: 16px;
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-3);
  margin-bottom: 5px;
}

.progress-bar {
  height: 4px;
  background: var(--surface-3);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--accent);
  transition: width 0.6s cubic-bezier(0.4,0,0.2,1);
}

.card.status-ok     .progress-fill { background: var(--ok); }
.card.status-warning .progress-fill { background: var(--warning); }
.card.status-critical .progress-fill { background: var(--critical); }

/* Sparkline + trend */
.card-trend {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.trend-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 999px;
}

.trend-up      { background: var(--critical-bg); color: var(--critical); }
.trend-down    { background: var(--ok-bg);       color: var(--ok); }
.trend-neutral { background: var(--accent-glow); color: #a8c0f8; }

/* Metrics */
.card-metrics {
  display: flex;
  flex-direction: column;
  gap: 5px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 12px;
}

.metric-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 12px;
}

.metric-key { color: var(--text-2); }
.metric-val { color: var(--text-1); font-weight: 500; font-variant-numeric: tabular-nums; }

/* Error state */
.card-error {
  font-size: 13px;
  color: var(--text-2);
  font-style: italic;
  padding-top: 4px;
}

/* ─── Footer ─────────────────────────────────────────────────── */

.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 32px;
  border-top: 1px solid var(--border-subtle);
  background: var(--surface-1);
}

.footer-left {
  font-size: 12px;
  color: var(--text-3);
}

.btn-refresh {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--surface-3);
  border: 1px solid var(--border-strong);
  color: var(--text-1);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  padding: 7px 14px;
  border-radius: var(--r-md);
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}

.btn-refresh:hover {
  filter: brightness(1.15);
  transform: translateY(-1px);
}

.btn-refresh.spinning svg {
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Overview ───────────────────────────────────────────────── */

.overview {
  margin-bottom: 20px;
}

.chart-card {
  background: var(--surface-1);
  border: 1px solid var(--border-default);
  border-radius: var(--r-lg);
  padding: 20px;
}

.panel-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-3);
  margin-bottom: 16px;
}

/* Chart rows */
.chart-row {
  display: grid;
  grid-template-columns: 88px 1fr 128px;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.chart-row:last-child { margin-bottom: 0; }

.chart-service {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-2);
}

.chart-track {
  position: relative;
  height: 20px;
  background: var(--surface-3);
  border-radius: var(--r-sm);
  overflow: hidden;
}

.chart-bg {
  position: absolute;
  top: 0; left: 0;
  height: 100%;
  background: rgba(255,255,255,0.04);
  border-right: 1px solid var(--border-subtle);
}

.chart-fill {
  position: absolute;
  top: 0; left: 0;
  height: 100%;
  border-radius: var(--r-sm);
  transition: width 0.5s cubic-bezier(0.4,0,0.2,1);
}

.chart-amounts {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.chart-cur {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-1);
  display: block;
}

.chart-proj {
  font-size: 11px;
  color: var(--text-3);
  display: block;
}

/* ─── Card detail (Cloudflare breakdown) ────────────────────────── */

.detail-toggle {
  margin-top: 12px;
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border-default);
  border-radius: var(--r-sm);
  color: var(--text-2);
  font-size: 12px;
  font-weight: 600;
  padding: 7px 0;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.detail-toggle:hover {
  background: var(--surface-3);
  color: var(--text-1);
}

.detail-table {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.detail-row {
  display: grid;
  grid-template-columns: 90px 1fr 120px 90px;
  gap: 16px;
  align-items: center;
  font-size: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.detail-row.detail-head {
  color: var(--text-3);
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.05em;
  font-weight: 600;
  border-bottom: 1px solid var(--border-default);
  padding-bottom: 8px;
}

.detail-metric { font-weight: 600; color: var(--text-1); }

.detail-usage {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--text-2);
}

.detail-pct { color: var(--text-3); flex-shrink: 0; }

.detail-overage { color: var(--warning); text-align: right; }

.detail-cost { color: var(--text-1); font-weight: 600; text-align: right; }

.detail-summary {
  display: flex;
  justify-content: space-between;
  font-size: 15px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border-default);
}

.detail-summary-muted {
  color: var(--text-3);
  font-size: 13px;
  border-top: none;
  padding-top: 0;
  margin-top: 6px;
}

/* ─── Modal ──────────────────────────────────────────────────── */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(4,5,8,0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.modal-box {
  width: 100%;
  max-width: 560px;
  max-height: 85vh;
  margin: 20px;
  overflow-y: auto;
  background: var(--surface-1);
  border: 1px solid var(--border-default);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-card-hover);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  background: var(--surface-1);
}

.modal-title {
  font-size: 15px;
  font-weight: 600;
  text-transform: capitalize;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-2);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
}

.modal-close:hover { color: var(--text-1); }

.modal-body {
  padding: 24px;
}

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


@media (max-width: 600px) {
  .header { padding: 0 16px; }
  main { padding: 20px 16px; }
  .footer { padding: 12px 16px; }
  .header-email { display: none; }
  .card-cost { font-size: 24px; }
  .chart-row { grid-template-columns: 70px 1fr 100px; }
}