/* ============================================================
   Insightro AI — style.css
   Palette: slate-900 base + brand blue / green (matches Insightro app)
   Type: Space Grotesk (display) / Inter (body) / JetBrains Mono (data)
   ============================================================ */

:root {
  --ink:        #0F172A;   /* slate-900 — matches Insightro app */
  --ink-2:      #16213A;
  --ink-3:      #1E293B;
  --line:       #2C3B57;
  --paper:      #F8FAFC;
  --card:       #FFFFFF;
  --text:       #0F172A;
  --muted:      #64748B;
  --muted-dark: #94A3B8;
  --green:      #22C55E;   /* brand "AI" green */
  --green-deep: #16A34A;
  --blue:       #2563EB;   /* brand blue */
  --blue-deep:  #1D4ED8;
  --sky:        #38BDF8;
  --danger:     #BE123C;

  --ff-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --ff-body:    'Inter', 'Segoe UI', sans-serif;
  --ff-mono:    'JetBrains Mono', Consolas, monospace;

  --radius: 14px;
  --shadow: 0 10px 40px rgba(10, 17, 34, 0.10);
  --shadow-lg: 0 24px 80px rgba(10, 17, 34, 0.16);
  --container: 1160px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--ff-body);
  color: var(--text);
  background: var(--paper);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Reveal-on-scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 0.12s; }
.reveal-delay-2 { transition-delay: 0.24s; }
.reveal-delay-3 { transition-delay: 0.36s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: 0.001s !important; animation-iteration-count: 1 !important; }
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding: 18px 0;
  transition: padding 0.35s ease;
}
.site-header::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  transition: background 0.35s ease, box-shadow 0.35s ease, backdrop-filter 0.35s ease;
}
.site-header.is-scrolled {
  padding: 12px 0;
}
.site-header.is-scrolled::before {
  background: rgba(10, 17, 34, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 24px rgba(0, 0, 0, 0.35);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.brand img { height: 40px; width: auto; }

.main-nav { display: flex; align-items: center; gap: 32px; }
.main-nav a {
  color: #C7D2E8;
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: 500;
  position: relative;
  transition: color 0.25s;
}
.main-nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 2px;
  background: var(--green);
  transition: width 0.3s var(--ease);
}
.main-nav a:hover { color: #fff; }
.main-nav a:hover::after { width: 100%; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 26px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s;
}
.btn-primary {
  background: linear-gradient(180deg, var(--blue), var(--blue-deep));
  color: #FFFFFF;
  box-shadow: 0 6px 24px rgba(29, 78, 216, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 32px rgba(29, 78, 216, 0.5); }
.btn-ghost {
  background: transparent;
  color: #E6EDF8;
  border: 1.5px solid var(--line);
}
.btn-ghost:hover { border-color: var(--green); color: var(--green); }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; }
.nav-toggle span { display: block; width: 26px; height: 2.5px; background: #E6EDF8; margin: 6px 0; border-radius: 2px; transition: 0.3s; }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(37, 99, 235, 0.20), transparent 60%),
    radial-gradient(700px 500px at -10% 110%, rgba(34, 197, 94, 0.10), transparent 55%),
    var(--ink);
  color: #fff;
  padding: 170px 0 110px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(ellipse at 50% 30%, black 30%, transparent 75%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ff-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--green);
  border: 1px solid rgba(34, 197, 94, 0.4);
  background: rgba(34, 197, 94, 0.08);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--green);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.5); }
  50% { box-shadow: 0 0 0 7px rgba(34, 197, 94, 0); }
}
.hero h1 {
  font-family: var(--ff-display);
  font-size: clamp(2.3rem, 4.6vw, 3.6rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 700;
}
.hero h1 .accent { color: var(--green); }
.hero .lede {
  margin: 22px 0 34px;
  font-size: 1.13rem;
  color: #B9C6E0;
  max-width: 540px;
}
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-note { margin-top: 18px; font-size: 0.85rem; color: #7C8BAA; }

/* ---------- Ask AI console (signature) ---------- */
.console {
  background: #0C1425;
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow-lg), 0 0 90px rgba(56, 189, 248, 0.08);
  overflow: hidden;
  font-family: var(--ff-mono);
  font-size: 0.86rem;
  animation: floaty 7s ease-in-out infinite;
}
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.console-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #101A30;
  border-bottom: 1px solid var(--line);
}
.console-bar .cdot { width: 11px; height: 11px; border-radius: 50%; }
.console-bar .r { background: #FF5F57; } .console-bar .y { background: #FEBC2E; } .console-bar .g { background: #28C840; }
.console-bar .title { margin-left: 10px; color: #7C8BAA; font-size: 0.76rem; }
.console-body { padding: 20px 20px 24px; min-height: 300px; }
.console-line { color: #E6EDF8; margin-bottom: 6px; min-height: 1.3em; }
.console-line .prompt { color: var(--green); }
.console-line .cursor {
  display: inline-block;
  width: 8px; height: 1.05em;
  background: var(--sky);
  vertical-align: text-bottom;
  animation: blink 0.9s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.console-sql { color: #7DD3FC; white-space: pre-wrap; margin: 10px 0; opacity: 0; transition: opacity 0.5s; }
.console-sql.show { opacity: 1; }
.console-chart {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  height: 120px;
  margin-top: 16px;
  padding-top: 8px;
  border-top: 1px dashed var(--line);
}
.console-chart .barwrap { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 6px; }
.console-chart .bar {
  width: 100%;
  border-radius: 5px 5px 0 0;
  background: linear-gradient(180deg, #60A5FA, var(--blue-deep));
  height: 0;
  transition: height 1s var(--ease);
}
.console-chart .bar.alt { background: linear-gradient(180deg, #4ADE80, var(--green-deep)); }
.console-chart .lbl { font-size: 0.62rem; color: #7C8BAA; white-space: nowrap; }

/* ---------- Stats strip ---------- */
.stats {
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 44px 0;
  color: #fff;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat .num {
  font-family: var(--ff-display);
  font-size: 2.3rem;
  font-weight: 700;
  color: var(--green);
}
.stat .cap { color: #8FA3C8; font-size: 0.9rem; margin-top: 4px; }

/* ---------- Sections ---------- */
.section { padding: 100px 0; }
.section-dark { background: var(--ink); color: #fff; }
.section-head { max-width: 680px; margin: 0 auto 60px; text-align: center; }
.kicker {
  font-family: var(--ff-mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue);
}
.section-dark .kicker { color: var(--green); }
.section-head h2 {
  font-family: var(--ff-display);
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  letter-spacing: -0.015em;
  margin: 12px 0 14px;
}
.section-head p { color: var(--muted); font-size: 1.05rem; }
.section-dark .section-head p { color: #9FB0D0; }

/* ---------- Feature cards ---------- */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.feature-card {
  background: var(--card);
  border: 1px solid #E4E9F2;
  border-radius: var(--radius);
  padding: 34px 28px;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s;
}
.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(37, 99, 235, 0.45);
}
.feature-icon {
  width: 52px; height: 52px;
  border-radius: 13px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(37,99,235,0.12), rgba(34,197,94,0.08));
  border: 1px solid rgba(37,99,235,0.28);
  margin-bottom: 20px;
}
.feature-icon svg { width: 26px; height: 26px; stroke: var(--blue); }
.feature-card h3 { font-family: var(--ff-display); font-size: 1.18rem; margin-bottom: 10px; }
.feature-card p { color: var(--muted); font-size: 0.96rem; }

/* ---------- How it works ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; counter-reset: step; }
.step {
  background: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 28px;
  position: relative;
}
.step .n {
  font-family: var(--ff-mono);
  color: var(--green);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
}
.step h3 { font-family: var(--ff-display); margin: 12px 0 10px; font-size: 1.15rem; }
.step p { color: #9FB0D0; font-size: 0.95rem; }
.step::after {
  content: '→';
  position: absolute;
  right: -22px; top: 50%;
  transform: translateY(-50%);
  color: var(--green);
  font-size: 1.4rem;
}
.step:last-child::after { display: none; }

/* ---------- Product shot ---------- */
.product-shot {
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line);
  transform: perspective(1400px) rotateX(4deg);
  transition: transform 0.6s var(--ease);
}
.product-shot:hover { transform: perspective(1400px) rotateX(0deg); }

/* ---------- Security ---------- */
.security-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.security-item {
  display: flex; gap: 18px;
  background: var(--card);
  border: 1px solid #E4E9F2;
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 0.3s, transform 0.3s var(--ease);
}
.security-item:hover { border-color: var(--green); transform: translateX(6px); }
.security-item .shield {
  flex: 0 0 44px; height: 44px;
  border-radius: 11px;
  display: grid; place-items: center;
  background: rgba(34, 197, 94, 0.12);
}
.security-item .shield svg { width: 22px; height: 22px; stroke: var(--green); }
.security-item h4 { font-family: var(--ff-display); margin-bottom: 5px; }
.security-item p { color: var(--muted); font-size: 0.92rem; }

/* ---------- Plans ---------- */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; align-items: stretch; }
.plan {
  background: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 30px;
  display: flex; flex-direction: column;
  transition: transform 0.35s var(--ease), border-color 0.35s;
}
.plan:hover { transform: translateY(-8px); }
.plan.featured { border-color: var(--sky); position: relative; box-shadow: 0 0 60px rgba(56,189,248,0.14); }
.plan.featured .flag {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(180deg, var(--sky), var(--blue));
  color: #FFFFFF;
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  padding: 5px 14px;
  border-radius: 999px;
}
.plan h3 { font-family: var(--ff-display); font-size: 1.3rem; }
.plan .for { color: #8FA3C8; font-size: 0.9rem; margin: 6px 0 22px; }
.plan ul { list-style: none; margin-bottom: 28px; flex: 1; }
.plan ul li {
  padding: 9px 0 9px 28px;
  position: relative;
  color: #C7D2E8;
  font-size: 0.94rem;
  border-bottom: 1px dashed rgba(255,255,255,0.06);
}
.plan ul li::before { content: '✓'; position: absolute; left: 0; color: var(--green); font-weight: 700; }

/* ---------- Demo form ---------- */
.demo-wrap {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: start;
}
.demo-copy h2 { font-family: var(--ff-display); font-size: 2rem; margin: 12px 0 16px; letter-spacing: -0.015em; }
.demo-copy p { color: var(--muted); margin-bottom: 24px; }
.demo-points { list-style: none; }
.demo-points li { padding: 8px 0 8px 30px; position: relative; color: var(--text); }
.demo-points li::before { content: '▸'; position: absolute; left: 4px; color: var(--blue); }

.demo-form {
  background: var(--card);
  border: 1px solid #E4E9F2;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 38px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 0.86rem; font-weight: 600; margin-bottom: 7px; }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 13px 15px;
  border: 1.5px solid #DCE3EF;
  border-radius: 10px;
  font-family: var(--ff-body);
  font-size: 0.95rem;
  background: #FBFCFE;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.14);
}
.field textarea { resize: vertical; min-height: 110px; }
.field .err { color: var(--danger); font-size: 0.8rem; margin-top: 5px; display: none; }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: var(--danger); }
.field.has-error .err { display: block; }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

.form-status { margin-top: 16px; font-size: 0.92rem; display: none; padding: 13px 16px; border-radius: 10px; }
.form-status.ok { display: block; background: rgba(34, 197, 94, 0.12); color: #0E7C6E; }
.form-status.fail { display: block; background: rgba(190, 18, 60, 0.08); color: var(--danger); }

.btn[disabled] { opacity: 0.6; cursor: wait; transform: none; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink);
  color: #8FA3C8;
  padding: 64px 0 30px;
  border-top: 1px solid var(--line);
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 44px; margin-bottom: 44px; }
.site-footer img { height: 36px; margin-bottom: 16px; }
.site-footer h5 { color: #E6EDF8; font-family: var(--ff-display); margin-bottom: 14px; font-size: 0.98rem; }
.site-footer a { color: #8FA3C8; text-decoration: none; display: block; padding: 4px 0; font-size: 0.92rem; transition: color 0.25s; }
.site-footer a:hover { color: var(--green); }
.footer-bottom { border-top: 1px solid var(--line); padding-top: 24px; font-size: 0.84rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .features-grid, .steps, .plans { grid-template-columns: 1fr 1fr; }
  .step::after { display: none; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 34px; }
  .demo-wrap { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .main-nav {
    position: fixed;
    inset: 0 0 0 32%;
    background: rgba(10, 17, 34, 0.98);
    flex-direction: column;
    justify-content: center;
    gap: 30px;
    transform: translateX(105%);
    transition: transform 0.4s var(--ease);
  }
  .main-nav.open { transform: none; }
  .nav-toggle { display: block; z-index: 110; }
}

@media (max-width: 680px) {
  .section { padding: 70px 0; }
  .hero { padding: 130px 0 80px; }
  .features-grid, .steps, .plans, .security-grid, .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* ---------- Brand lockup (icon + wordmark text) ---------- */
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand img { height: 42px; width: auto; }
.brand-text-wrap { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  color: #FFFFFF;
}
.brand-text em { font-style: normal; color: var(--green); }
.brand-tagline {
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--muted-dark);
  margin-top: 2px;
}
.footer-brand { margin-bottom: 16px; }
.footer-brand img { height: 38px; }

/* ---------- Split section (AI engine) ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.split-media img {
  border-radius: 16px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg), 0 0 80px rgba(56, 189, 248, 0.10);
}
.split-copy h2 {
  font-family: var(--ff-display);
  font-size: clamp(1.7rem, 2.8vw, 2.2rem);
  letter-spacing: -0.015em;
  margin: 12px 0 16px;
}
.split-copy p { color: #9FB0D0; margin-bottom: 22px; }
.demo-points.on-dark li { color: #C7D2E8; }
.demo-points.on-dark li::before { color: var(--green); }

@media (max-width: 1000px) {
  .split { grid-template-columns: 1fr; gap: 36px; }
}