:root {
  --bg: #0b1220;
  --panel: #121b2e;
  --panel-2: #17233b;
  --panel-3: #1d2a45;
  --line: #253355;
  --line-soft: #1b2740;
  --text: #e7ecf3;
  --text-dim: #8b98b8;
  --text-dimmer: #5e6c8c;
  --teal: #4fd8c4;
  --teal-dim: #2c9e8f;
  --amber: #f5b759;
  --red: #e8788a;
  --mono: "JetBrains Mono", monospace;
  --sans: "Inter", sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--teal);
  color: #06110f;
}

a {
  color: inherit;
  text-decoration: none;
}

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px;
}

/* subtle grid texture behind everything */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.35;
  mask-image: radial-gradient(
    ellipse 80% 60% at 50% 0%,
    black 10%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
}

/* ---------- NAV ---------- */
nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 18, 32, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo .dot {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--teal);
  box-shadow: 0 0 12px var(--teal);
}
.nav-links {
  display: flex;
  gap: 28px;
  font-size: 13.5px;
  color: var(--text-dim);
}
.nav-links a:hover {
  color: var(--teal);
}
.nav-cta {
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 600;
  padding: 8px 14px;
  border: 1px solid var(--teal-dim);
  border-radius: 6px;
  color: var(--teal);
  background: rgba(79, 216, 196, 0.06);
}
.nav-cta:hover {
  background: rgba(79, 216, 196, 0.14);
}
@media (max-width: 760px) {
  .nav-links {
    display: none;
  }
}

/* ---------- HERO ---------- */
header.hero {
  position: relative;
  z-index: 1;
  padding: 96px 0 64px;
}
.eyebrow {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--teal);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "//";
  color: var(--text-dimmer);
}
h1 {
  font-family: var(--mono);
  font-weight: 800;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  max-width: 760px;
  color: #fff;
}
h1 span {
  color: var(--teal);
}
.hero p.lead {
  margin-top: 22px;
  font-size: 17px;
  color: var(--text-dim);
  max-width: 560px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.btn {
  font-family: var(--mono);
  font-size: 13.5px;
  font-weight: 600;
  padding: 12px 20px;
  border-radius: 7px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid transparent;
  transition:
    transform 0.15s ease,
    background 0.15s ease;
}
.btn:hover {
  transform: translateY(-1px);
}
.btn-primary {
  background: var(--teal);
  color: #06140f;
}
.btn-primary:hover {
  background: #63e6d3;
}
.btn-ghost {
  border-color: var(--line);
  color: var(--text);
  background: var(--panel);
}
.btn-ghost:hover {
  border-color: var(--teal-dim);
  color: var(--teal);
}

/* --- terminal / app window mockup --- */
.app-window {
  margin-top: 56px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 30px 70px -30px rgba(0, 0, 0, 0.7);
  max-width: 720px;
}
.app-titlebar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--line);
}
.app-titlebar .tl {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.tl.r {
  background: #f1685e;
}
.tl.y {
  background: #f4bf4f;
}
.tl.g {
  background: #63c554;
}
.app-titlebar .title {
  margin-left: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
}
.app-body {
  padding: 0;
}
table.mock {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 13px;
}
table.mock thead th {
  text-align: left;
  padding: 12px 18px;
  color: var(--teal);
  font-weight: 600;
  border-bottom: 1px solid var(--line);
  background: rgba(79, 216, 196, 0.04);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
table.mock tbody td {
  padding: 11px 18px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--text-dim);
}
table.mock tbody tr:hover td {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
}
table.mock tbody tr:last-child td {
  border-bottom: none;
}
.app-footer {
  display: flex;
  justify-content: space-between;
  padding: 10px 18px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-dimmer);
  border-top: 1px solid var(--line);
  background: var(--panel-2);
}
.blink {
  display: inline-block;
  width: 7px;
  height: 13px;
  background: var(--teal);
  margin-left: 2px;
  animation: blink 1s step-end infinite;
  vertical-align: -2px;
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}

/* ---------- SECTION shells ---------- */
section {
  position: relative;
  z-index: 1;
  padding: 88px 0;
  border-top: 1px solid var(--line-soft);
}
.section-head {
  margin-bottom: 44px;
  max-width: 640px;
}
.section-head .eyebrow {
  margin-bottom: 14px;
}
.section-head h2 {
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(24px, 3vw, 32px);
  color: #fff;
}
.section-head p {
  color: var(--text-dim);
  margin-top: 12px;
  font-size: 15px;
}

/* ---------- FEATURES (labeled by real SQL operations) ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  overflow: hidden;
}
.feature {
  background: var(--panel);
  padding: 28px 26px;
}
.feature .op {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--amber);
  background: rgba(245, 183, 89, 0.08);
  display: inline-block;
  padding: 3px 8px;
  border-radius: 5px;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.feature h3 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 8px;
}
.feature p {
  font-size: 13.5px;
  color: var(--text-dim);
}
@media (max-width: 760px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- STACK badges ---------- */
.stack-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.badge {
  font-family: var(--mono);
  font-size: 13px;
  padding: 9px 16px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 8px;
}
.badge .sq {
  width: 7px;
  height: 7px;
  background: var(--teal);
  border-radius: 2px;
}

/* ---------- TABS ---------- */
.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 0;
  border-bottom: 1px solid var(--line);
}
.tab {
  font-family: var(--mono);
  font-size: 12.5px;
  padding: 10px 16px;
  color: var(--text-dimmer);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  user-select: none;
}
.tab.active {
  color: var(--teal);
  border-bottom-color: var(--teal);
}
.tab-panel {
  display: none;
}
.tab-panel.active {
  display: block;
}

/* ---------- CODE BLOCKS ---------- */
.code {
  position: relative;
  background: #0d1526;
  border: 1px solid var(--line);
  border-radius: 9px;
  margin-top: 16px;
  overflow: hidden;
}
.code .bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 14px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-2);
}
.code .bar span {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dimmer);
}
.copy-btn {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 4px 9px;
  cursor: pointer;
}
.copy-btn:hover {
  border-color: var(--teal-dim);
  color: var(--teal);
}
.code pre {
  padding: 16px 18px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
}
.code pre code {
  color: #c7d3ea;
}
.k {
  color: var(--teal);
}
.s {
  color: var(--amber);
}
.c {
  color: var(--text-dimmer);
}

/* ---------- STEPS ---------- */
.steps {
  counter-reset: step;
}
.step {
  display: flex;
  gap: 20px;
  padding: 22px 0;
  border-top: 1px solid var(--line-soft);
}
.step:first-child {
  border-top: none;
}
.step-num {
  counter-increment: step;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 13px;
  color: var(--teal);
  flex: none;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--panel);
}
.step-num::before {
  content: counter(step, decimal-leading-zero);
}
.step-body h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 4px;
}
.step-body p {
  font-size: 13.5px;
  color: var(--text-dim);
}

/* ---------- SCHEMA ---------- */
.schema-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 28px;
  align-items: start;
}
@media (max-width: 820px) {
  .schema-grid {
    grid-template-columns: 1fr;
  }
}
.field-list {
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
.field {
  display: flex;
  justify-content: space-between;
  padding: 12px 16px;
  font-family: var(--mono);
  font-size: 12.5px;
  border-top: 1px solid var(--line-soft);
}
.field:first-child {
  border-top: none;
}
.field .name {
  color: var(--text);
}
.field .type {
  color: var(--text-dimmer);
}
.field .pk {
  color: var(--amber);
  font-size: 10.5px;
  border: 1px solid rgba(245, 183, 89, 0.3);
  padding: 1px 6px;
  border-radius: 4px;
  margin-left: 8px;
}

/* ---------- FAQ / troubleshooting ---------- */
.faq {
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
.faq-item {
  border-top: 1px solid var(--line-soft);
}
.faq-item:first-child {
  border-top: none;
}
.faq-q {
  padding: 18px 20px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14.5px;
  font-weight: 600;
  color: #fff;
  background: var(--panel);
}
.faq-q .plus {
  font-family: var(--mono);
  color: var(--teal);
  transition: transform 0.2s ease;
}
.faq-item.open .plus {
  transform: rotate(45deg);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
  background: var(--panel);
}
.faq-item.open .faq-a {
  max-height: 200px;
}
.faq-a-inner {
  padding: 0 20px 18px;
  font-size: 13.5px;
  color: var(--text-dim);
}

/* ---------- FOOTER ---------- */
footer {
  padding: 56px 0 40px;
  border-top: 1px solid var(--line-soft);
}
.foot-grid {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
footer .col h5 {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--teal);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
footer .col a,
footer .col p {
  display: block;
  font-size: 13.5px;
  color: var(--text-dim);
  margin-bottom: 8px;
}
footer .col a:hover {
  color: var(--teal);
}
.fine {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-dimmer);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

::-webkit-scrollbar {
  height: 8px;
  width: 8px;
}
::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 4px;
}