/* ── RESET & BASE ────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --teal:    #00c8a8;
  --teal-dim:#00a88a;
  --bg:      #080e1a;
  --bg2:     #0d1526;
  --bg3:     #111d32;
  --card:    rgba(255,255,255,0.04);
  --border:  rgba(255,255,255,0.08);
  --text:    #e2e8f0;
  --muted:   #8899b0;
  --white:   #ffffff;
  --red:     #ef4444;
  --green:   #22c55e;
  --radius:  12px;
  --radius-lg: 20px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── TYPOGRAPHY ──────────────────────────────────────────────── */
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; line-height: 1.15; }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 700; line-height: 1.25; }
h3 { font-size: 1.15rem; font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; }

.gradient-text {
  background: linear-gradient(135deg, var(--teal), #4facfe);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── BUTTONS ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  text-decoration: none;
}
.btn-primary {
  background: var(--teal);
  color: #000;
}
.btn-primary:hover { background: var(--teal-dim); transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); }
.btn-full { width: 100%; justify-content: center; font-size: 1rem; padding: 14px; }

/* ── NAVBAR ──────────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 24px;
  background: rgba(8, 14, 26, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}
.navbar.scrolled { border-bottom-color: var(--border); }
.nav-inner {
  max-width: 1140px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--white);
}
.nav-logo span { color: var(--teal); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}
.nav-links a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--white); }
.nav-cta {
  background: var(--teal) !important;
  color: #000 !important;
  padding: 8px 20px;
  border-radius: 6px;
  font-weight: 600 !important;
}
.nav-cta:hover { background: var(--teal-dim) !important; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--white); border-radius: 2px; transition: all 0.3s; }

/* ── HERO ────────────────────────────────────────────────────── */
.hero {
  position: relative;
  padding: 140px 0 80px;
  overflow: hidden;
}
.hero-bg-glow {
  position: absolute;
  top: -200px; left: 50%; transform: translateX(-50%);
  width: 800px; height: 600px;
  background: radial-gradient(ellipse, rgba(0,200,168,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-badge {
  display: inline-block;
  padding: 5px 14px;
  border: 1px solid rgba(0,200,168,0.3);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--teal);
  font-weight: 500;
  margin-bottom: 20px;
  background: rgba(0,200,168,0.05);
}
.hero-title { color: var(--white); margin-bottom: 20px; }
.hero-sub { color: var(--muted); font-size: 1.05rem; line-height: 1.7; margin-bottom: 36px; max-width: 480px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Screenshot frame */
.screenshot-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg3);
  box-shadow: 0 40px 80px rgba(0,0,0,0.5);
}
.screenshot-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #22c55e; }
.url-bar {
  margin-left: 8px;
  font-size: 0.75rem;
  color: var(--muted);
  font-family: monospace;
}
.screenshot-img { width: 100%; }
.screenshot-placeholder {
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
}
.placeholder-inner { width: 100%; }
.placeholder-kpi-row {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}
.pkpi {
  flex: 1;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  text-align: center;
}
.pkpi-val { font-size: 1.1rem; font-weight: 700; color: var(--white); }
.pkpi-val.teal { color: var(--teal); }
.pkpi-val.green { color: #22c55e; }
.pkpi-lbl { font-size: 0.7rem; color: var(--muted); margin-top: 2px; }
.placeholder-chart { height: 80px; }
.placeholder-chart svg { width: 100%; height: 100%; }

/* ── PROBLEM ─────────────────────────────────────────────────── */
.problem {
  padding: 100px 0;
  background: var(--bg2);
}
.problem-inner { text-align: center; }
.problem-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
}
.problem h2 { color: var(--white); margin-bottom: 48px; }
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.problem-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: left;
}
.problem-icon { font-size: 1.8rem; margin-bottom: 12px; }
.problem-card h4 { color: var(--white); margin-bottom: 8px; }
.problem-card p { color: var(--muted); font-size: 0.9rem; line-height: 1.6; }
.problem-solution {
  display: inline-block;
  background: rgba(0,200,168,0.08);
  border: 1px solid rgba(0,200,168,0.25);
  border-radius: 100px;
  padding: 10px 28px;
  color: var(--teal);
  font-weight: 500;
  font-size: 0.95rem;
}

/* ── FEATURES ────────────────────────────────────────────────── */
.features { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
}
.section-header h2 { color: var(--white); }
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: border-color 0.25s, transform 0.25s;
}
.feature-card:hover {
  border-color: rgba(0,200,168,0.35);
  transform: translateY(-3px);
}
.feature-icon { font-size: 1.8rem; margin-bottom: 14px; }
.feature-card h3 { color: var(--white); margin-bottom: 10px; }
.feature-card p { color: var(--muted); font-size: 0.88rem; line-height: 1.65; }

/* ── SCREENSHOTS ─────────────────────────────────────────────── */
.screenshots { padding: 100px 0; background: var(--bg2); }
.screenshots-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 20px;
}
.ss-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.25s;
}
.ss-card:hover { border-color: rgba(0,200,168,0.3); }
.ss-large { grid-column: 1 / 3; }
.ss-label {
  padding: 12px 16px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
}
.ss-card img { width: 100%; }
.ss-ph {
  min-height: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--muted);
  font-size: 1.1rem;
  background: repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(255,255,255,0.01) 10px, rgba(255,255,255,0.01) 20px);
}
.ss-large .ss-ph { min-height: 280px; }
.ss-ph small { font-size: 0.8rem; color: rgba(136,153,176,0.6); }

/* ── TECH STACK ──────────────────────────────────────────────── */
.stack { padding: 80px 0; }
.stack-grid {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
}
.stack-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 28px;
  min-width: 110px;
  transition: border-color 0.2s;
}
.stack-item:hover { border-color: rgba(0,200,168,0.3); }
.stack-item span { font-size: 0.82rem; color: var(--muted); font-weight: 500; }
.stack-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--bg3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}
/* Using emoji as icons */
.stack-icon.react::after   { content: '⚛️'; }
.stack-icon.fastapi::after { content: '🚀'; }
.stack-icon.python::after  { content: '🐍'; }
.stack-icon.jmeter::after  { content: '🔬'; }
.stack-icon.postgres::after{ content: '🐘'; }
.stack-icon.docker::after  { content: '🐳'; }

/* ── DEMO FORM ───────────────────────────────────────────────── */
.demo {
  padding: 100px 0;
  background: var(--bg2);
}
.demo-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 72px;
  align-items: start;
}
.demo-left .section-label { display: block; margin-bottom: 12px; }
.demo-left h2 { color: var(--white); margin-bottom: 16px; }
.demo-left > p { color: var(--muted); font-size: 0.95rem; line-height: 1.7; margin-bottom: 28px; }
.demo-points { list-style: none; display: flex; flex-direction: column; gap: 10px; margin-bottom: 32px; }
.demo-points li { font-size: 0.9rem; color: var(--text); }
.demo-contact a {
  color: var(--teal);
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(0,200,168,0.3);
  padding-bottom: 2px;
  transition: border-color 0.2s;
}
.demo-contact a:hover { border-color: var(--teal); }

/* Form */
.demo-form {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.form-group label { font-size: 0.85rem; font-weight: 500; color: var(--text); }
.req { color: var(--teal); }
.form-group input,
.form-group textarea {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 11px 14px;
  color: var(--white);
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--teal); }
.form-group input.error,
.form-group textarea.error { border-color: var(--red); }
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(136,153,176,0.5); }
.field-error { font-size: 0.78rem; color: var(--red); min-height: 16px; }
.form-feedback {
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 500;
  display: none;
}
.form-feedback.success {
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.3);
  color: #22c55e;
  display: block;
}
.form-feedback.error {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  color: var(--red);
  display: block;
}

/* ── FOOTER ──────────────────────────────────────────────────── */
.footer {
  padding: 48px 0 32px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-brand p { font-size: 0.85rem; color: var(--muted); margin-top: 6px; }
.footer-links { display: flex; gap: 28px; }
.footer-links a { font-size: 0.87rem; color: var(--muted); transition: color 0.2s; }
.footer-links a:hover { color: var(--white); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 24px; }
.footer-bottom p { font-size: 0.82rem; color: rgba(136,153,176,0.5); text-align: center; }
.footer-bottom strong { color: var(--muted); }

/* ── RESPONSIVE ──────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .problem-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .screenshots-grid { grid-template-columns: 1fr; }
  .ss-large { grid-column: 1; }
  .demo-inner { grid-template-columns: 1fr; gap: 40px; }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    padding: 20px 24px 24px;
    gap: 16px;
  }
  .nav-toggle { display: flex; }
}

@media (max-width: 600px) {
  .features-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .demo-form { padding: 24px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}