:root {
  --bg: #0b0d12;
  --bg-2: #0f1218;
  --surface: #141823;
  --surface-2: #1a1f2c;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #e6e8ee;
  --muted: #8b93a7;
  --violet: #7c5cff;
  --cyan: #22d3ee;
  --emerald: #34d399;
  --amber: #fbbf24;
  --danger: #ef4444;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  --radius: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

body {
  background:
    radial-gradient(1100px 600px at 80% -10%, rgba(124, 92, 255, 0.18), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, rgba(34, 211, 238, 0.12), transparent 60%),
    var(--bg);
}

a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

.muted { color: var(--muted); font-size: 13px; }

/* ----- Top bar ----- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(11, 13, 18, 0.65);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  display: grid; place-items: center;
  color: #0b0d12; font-weight: 800; letter-spacing: 0.5px;
  box-shadow: 0 6px 18px rgba(124, 92, 255, 0.45);
}
.brand h1 { font-size: 18px; margin: 0; }
.brand.small strong { font-size: 16px; }
.topbar-nav { display: flex; align-items: center; gap: 12px; }
.user-chip {
  padding: 6px 12px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border);
  font-size: 13px;
}

/* ----- Container ----- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 24px 48px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ----- Cards ----- */
.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.005));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}
.card h2 { margin: 0 0 4px; font-size: 16px; font-weight: 600; letter-spacing: 0.2px; }

/* ----- Stats grid ----- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.stat-card {
  border-radius: var(--radius);
  padding: 18px 20px;
  border: 1px solid var(--border);
  background: var(--surface);
  position: relative;
  overflow: hidden;
  transition: transform .15s ease, box-shadow .15s ease;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0,0,0,0.5); }
.stat-card::before {
  content: ""; position: absolute; inset: -40% -40% auto auto;
  width: 220px; height: 220px; border-radius: 50%;
  filter: blur(40px); opacity: 0.35; pointer-events: none;
}
.gradient-violet::before  { background: var(--violet); }
.gradient-cyan::before    { background: var(--cyan); }
.gradient-emerald::before { background: var(--emerald); }
.gradient-amber::before   { background: var(--amber); }

.stat-label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.8px; }
.stat-value { font-size: 28px; font-weight: 700; margin-top: 4px; }
.stat-value small { font-size: 13px; color: var(--muted); font-weight: 500; }
.stat-sub   { color: var(--muted); font-size: 13px; margin-top: 6px; }

/* ----- Two-column grid ----- */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ----- Forms ----- */
.form { display: flex; flex-direction: column; gap: 14px; margin-top: 14px; }
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.form-grid .full { grid-column: 1 / -1; }
label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
label > span { font-weight: 500; }
input[type="text"], input[type="password"], input[type="number"], input[type="date"],
select, textarea {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 11px 13px;
  border-radius: 10px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
}
input::placeholder, textarea::placeholder { color: rgba(139, 147, 167, 0.6); }
input:focus, select:focus, textarea:focus {
  border-color: var(--violet);
  box-shadow: 0 0 0 4px rgba(124, 92, 255, 0.18);
}
select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path fill='%238b93a7' d='M6 8L1 3h10z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}
textarea {
  resize: vertical;
  min-height: 64px;
  line-height: 1.5;
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 16px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: transform .08s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
  text-decoration: none;
  font-family: inherit;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--violet), #5b3df0);
  color: #fff;
  box-shadow: 0 8px 22px rgba(124, 92, 255, 0.35);
}
.btn-primary:hover { box-shadow: 0 10px 26px rgba(124, 92, 255, 0.5); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover { background: var(--surface); }
.btn-danger {
  background: rgba(239, 68, 68, 0.12);
  color: #fca5a5;
  border-color: rgba(239, 68, 68, 0.35);
}
.btn-danger:hover { background: rgba(239, 68, 68, 0.2); }
.btn-sm { padding: 6px 12px; font-size: 13px; }

/* ----- Alerts ----- */
.alert {
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  font-size: 14px;
}
.alert-success { background: rgba(52, 211, 153, 0.08); border-color: rgba(52, 211, 153, 0.35); color: #6ee7b7; }
.alert-error   { background: rgba(239, 68, 68, 0.10);  border-color: rgba(239, 68, 68, 0.4);   color: #fca5a5; }
.alert-info    { background: rgba(34, 211, 238, 0.08); border-color: rgba(34, 211, 238, 0.35); color: #67e8f9; }

/* ----- Table ----- */
.table-wrap { overflow-x: auto; margin-top: 12px; }
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.data-table th, .data-table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}
.data-table th {
  color: var(--muted);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(255,255,255,0.02); }

/* ----- Charts ----- */
.chart-wrap { position: relative; height: 240px; margin-top: 14px; }
.chart-tall { height: 300px; }

/* ----- Footer ----- */
.footer { text-align: center; padding: 8px 0 0; font-size: 12px; }

/* ----- Auth pages ----- */
.auth-body {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 24px;
}
.auth-card {
  width: 100%;
  max-width: 420px;
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}
.auth-card .brand { margin-bottom: 6px; }
.auth-card h1 { font-size: 22px; margin: 0; }
.auth-card .btn-primary { width: 100%; padding: 12px; margin-top: 6px; }
.auth-foot { text-align: center; margin-top: 16px; font-size: 13px; }
.auth-foot a { color: var(--cyan); font-weight: 500; }

/* ----- History controls ----- */
.history-controls .history-toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.history-controls .history-toolbar:last-of-type {
  border-bottom: none;
}
.preset-group {
  display: inline-flex;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 4px;
  gap: 2px;
}
.preset-group .btn {
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 13px;
}
.preset-group .btn.btn-primary {
  box-shadow: none;
}
.month-nav {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.period-label {
  margin-left: auto;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
}
label.inline {
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}
label.inline input[type="date"] {
  padding: 8px 10px;
  font-size: 13px;
}
.range-summary {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-size: 13px;
  line-height: 1.6;
}

/* ----- Records ----- */
.records-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 14px;
}
.record {
  padding: 14px 16px;
  border-radius: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
}
.record-label { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: 0.8px; }
.record-value { font-size: 22px; font-weight: 700; margin-top: 4px; }
.record-value small { font-size: 13px; color: var(--muted); font-weight: 500; }
.record-sub   { color: var(--muted); font-size: 12px; margin-top: 4px; }

/* ----- Entries table extras ----- */
.effort { color: var(--amber); letter-spacing: 2px; font-size: 13px; }
.effort-empty { color: rgba(255,255,255,0.14); letter-spacing: 2px; }
.notes-cell {
  max-width: 280px;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 13px;
}
td.actions { white-space: nowrap; }
td.actions form { display: inline-block; margin: 0; }
td.actions .btn { margin-left: 4px; }
.form-actions { display: flex; gap: 10px; align-items: center; }

/* ----- Landing page ----- */
.landing-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.landing-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  gap: 16px;
}
.landing-nav-links { display: flex; gap: 10px; }

.landing {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 64px;
  padding: 40px 24px 64px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.hero {
  text-align: center;
  padding: 40px 20px 20px;
  max-width: 820px;
  margin: 0 auto;
}
.hero-eyebrow {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-title {
  font-size: 60px;
  line-height: 1.05;
  font-weight: 800;
  margin: 0 0 22px;
  letter-spacing: -1.5px;
}
.hero-accent {
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: 18px;
  color: var(--muted);
  max-width: 620px;
  margin: 0 auto 32px;
  line-height: 1.6;
}
.hero-cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-lg {
  padding: 14px 26px;
  font-size: 16px;
  border-radius: 12px;
}

.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.feature {
  padding: 24px;
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.005));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform .15s ease, box-shadow .15s ease;
}
.feature:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(0,0,0,0.45); }
.feature h3 { margin: 14px 0 6px; font-size: 16px; }
.feature p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.5; }
.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 24px;
  position: relative;
  overflow: hidden;
  background: var(--surface-2);
  border: 1px solid var(--border);
}
.feature-icon::after {
  content: ""; position: absolute; inset: -20% -20% auto auto;
  width: 100px; height: 100px; border-radius: 50%;
  filter: blur(20px); opacity: 0.55; pointer-events: none;
}
.feature-icon.gradient-violet::after  { background: var(--violet); }
.feature-icon.gradient-cyan::after    { background: var(--cyan); }
.feature-icon.gradient-emerald::after { background: var(--emerald); }
.feature-icon.gradient-amber::after   { background: var(--amber); }

.cta-band {
  text-align: center;
  padding: 48px 24px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(124, 92, 255, 0.10), rgba(34, 211, 238, 0.08));
  border: 1px solid var(--border);
}
.cta-band h2 { margin: 0 0 8px; font-size: 28px; font-weight: 700; }
.cta-band p  { margin: 0 0 24px; color: var(--muted); }

.landing-footer {
  padding: 24px;
  text-align: center;
  border-top: 1px solid var(--border);
  font-size: 13px;
}

@media (max-width: 1024px) {
  .features { grid-template-columns: repeat(2, 1fr); }
  .hero-title { font-size: 44px; }
}
@media (max-width: 560px) {
  .features { grid-template-columns: 1fr; }
  .hero-title { font-size: 34px; letter-spacing: -0.5px; }
  .hero { padding: 20px 8px 0; }
  .hero-sub { font-size: 16px; }
  .landing { gap: 40px; padding: 24px 16px 40px; }
  .cta-band { padding: 32px 18px; }
  .cta-band h2 { font-size: 22px; }
}

/* ----- Responsive ----- */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .records-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .records-grid { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .stat-value { font-size: 22px; }
  .topbar-inner { padding: 12px 16px; }
  .container { padding: 20px 16px 32px; }
  .period-label { margin-left: 0; width: 100%; text-align: center; }
}