/* NaDiRu — light, professional theme */
:root {
  --bg: #ffffff;
  --bg-alt: #f7f8fb;        /* slate-50ish */
  --bg-soft: #f4f6fb;
  --surface: #ffffff;
  --surface-2: #ffffff;
  --line: #e5e7eb;          /* gray-200 */
  --line-strong: #d1d5db;   /* gray-300 */
  --text: #0f172a;          /* slate-900 */
  --text-2: #334155;        /* slate-700 */
  --text-dim: #64748b;      /* slate-500 */
  --muted: #94a3b8;         /* slate-400 */
  --brand: #4f46e5;         /* indigo-600 */
  --brand-2: #0d9488;       /* teal-600 */
  --brand-3: #6366f1;       /* indigo-500 */
  --brand-soft: #eef2ff;    /* indigo-50 */
  --brand-soft-2: #ecfeff;  /* cyan-50 */
  --accent: #f59e0b;        /* amber-500 */
  --danger: #ef4444;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 1px rgba(15, 23, 42, 0.03);
  --shadow-md: 0 8px 20px -8px rgba(15, 23, 42, 0.10), 0 2px 6px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 24px 50px -20px rgba(15, 23, 42, 0.15), 0 8px 20px -10px rgba(79, 70, 229, 0.10);
  --container: 1180px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.6;
}

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

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

/* ---------- Navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(160%) blur(12px);
  background: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}
.nav__brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: -0.3px; color: var(--text); }
.nav__brand img { height: 34px; width: auto; }
.nav__brand span { font-size: 19px; }

.nav__links { display: flex; align-items: center; gap: 4px; }
.nav__links a {
  padding: 8px 14px;
  border-radius: 8px;
  color: var(--text-2);
  font-weight: 500;
  font-size: 15px;
  transition: color .15s ease, background .15s ease;
}
.nav__links a:hover { color: var(--text); background: var(--bg-alt); }
.nav__links a.is-active { color: var(--brand); background: var(--brand-soft); }

.nav__cta {
  padding: 9px 18px !important;
  background: var(--brand);
  color: #fff !important;
  font-weight: 600 !important;
  border-radius: 999px !important;
}
.nav__cta:hover { background: var(--brand-3) !important; color: #fff !important; }

.nav__toggle {
  display: none;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 500;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.1px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
}
.btn--primary { background: var(--brand); color: #fff; box-shadow: 0 8px 20px -8px rgba(79, 70, 229, 0.45); }
.btn--primary:hover { background: var(--brand-3); transform: translateY(-1px); box-shadow: 0 12px 28px -10px rgba(79, 70, 229, 0.55); }
.btn--ghost { background: #fff; color: var(--text); border-color: var(--line-strong); }
.btn--ghost:hover { background: var(--bg-alt); border-color: var(--brand); color: var(--brand); }

/* ---------- Eyebrow / chips ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--line);
  background: var(--bg-alt);
  color: var(--text-2);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--brand-2); box-shadow: 0 0 0 4px rgba(13, 148, 136, 0.18); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 88px 0 70px;
  overflow: hidden;
  background:
    radial-gradient(900px 480px at 88% -20%, rgba(79, 70, 229, 0.10), transparent 60%),
    radial-gradient(700px 380px at -10% 30%, rgba(13, 148, 136, 0.08), transparent 60%),
    var(--bg);
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero h1 {
  margin: 18px 0 18px;
  font-size: clamp(38px, 5.4vw, 60px);
  line-height: 1.05;
  letter-spacing: -1.5px;
  font-weight: 800;
  color: var(--text);
}
.grad {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-3) 50%, var(--brand-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p.lede {
  font-size: 18px;
  color: var(--text-dim);
  max-width: 580px;
  margin: 0 0 28px;
}
.hero__ctas { display: flex; flex-wrap: wrap; gap: 12px; }
.hero__meta { display: flex; gap: 24px; margin-top: 30px; color: var(--text-dim); font-size: 13.5px; flex-wrap: wrap; }
.hero__meta span::before { content: "✓ "; color: var(--brand-2); font-weight: 700; }

/* Hero visual */
.hero__visual {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 22px;
  background:
    linear-gradient(140deg, var(--brand-soft) 0%, #fff 50%, var(--brand-soft-2) 100%);
  border: 1px solid var(--line);
  padding: 24px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.hero__visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(220px 160px at 18% 12%, rgba(79, 70, 229, 0.14), transparent 60%),
    radial-gradient(240px 180px at 82% 88%, rgba(13, 148, 136, 0.12), transparent 60%);
  pointer-events: none;
}

.card-stack { position: relative; height: 100%; }
.float-card {
  position: absolute;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-md);
  font-size: 14px;
  min-width: 220px;
  animation: float 6s ease-in-out infinite;
}
.float-card .swatch {
  width: 36px; height: 36px; border-radius: 9px;
  display: grid; place-items: center;
  color: #fff; font-weight: 700;
}
.float-card strong { display: block; color: var(--text); font-size: 14px; }
.float-card small { display: block; color: var(--text-dim); font-size: 12px; margin-top: 2px; }
.fc-1 { top: 10%;   left: 6%;   animation-delay: 0s; }
.fc-2 { top: 38%;   right: 4%;  animation-delay: 1.2s; }
.fc-3 { bottom: 18%; left: 14%; animation-delay: 2.4s; }
.fc-4 { bottom: 6%;  right: 10%; animation-delay: 3.6s; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* ---------- Sections ---------- */
section { padding: 80px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-head h2 {
  font-size: clamp(28px, 3.4vw, 40px);
  letter-spacing: -0.8px;
  margin: 14px 0 12px;
  font-weight: 800;
  color: var(--text);
}
.section-head p { color: var(--text-dim); font-size: 17px; margin: 0; }

.section-alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* ---------- Services grid ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.service-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
  overflow: hidden;
  color: var(--text);
}
.service-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(360px 200px at var(--mx,30%) var(--my,20%), rgba(79,70,229,0.10), transparent 60%);
  opacity: 0;
  transition: opacity .25s ease;
  pointer-events: none;
}
.service-card:hover { transform: translateY(-3px); border-color: var(--brand); box-shadow: var(--shadow-md); }
.service-card:hover::after { opacity: 1; }

.service-card .icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  display: grid; place-items: center;
  color: #fff;
  margin-bottom: 16px;
  box-shadow: 0 6px 14px -6px rgba(0,0,0,0.20);
}
.service-card h3 { margin: 0 0 6px; font-size: 17px; letter-spacing: -0.2px; color: var(--text); }
.service-card p { margin: 0; color: var(--text-dim); font-size: 14.5px; }
.service-card .more {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 16px; font-size: 14px; color: var(--brand); font-weight: 600;
}
.service-card .more::after { content: "→"; transition: transform .2s ease; }
.service-card:hover .more::after { transform: translateX(4px); }

/* ---------- Stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 30px;
}
.stat { text-align: center; }
.stat strong {
  display: block;
  font-size: clamp(28px, 3vw, 36px);
  font-weight: 800; letter-spacing: -1px;
  color: var(--text);
}
.stat span { color: var(--text-dim); font-size: 14px; }

/* ---------- Capabilities ---------- */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.cap {
  border: 1px solid var(--line);
  background: #fff;
  padding: 22px;
  border-radius: var(--radius);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.cap:hover { border-color: var(--brand); box-shadow: var(--shadow-sm); }
.cap h4 { margin: 0 0 8px; font-size: 16px; color: var(--text); }
.cap p { color: var(--text-dim); font-size: 14.5px; margin: 0; }

/* ---------- Process ---------- */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  counter-reset: step;
  margin-top: 24px;
}
.process .step {
  position: relative;
  padding: 28px 22px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}
.process .step::before {
  counter-increment: step;
  content: "0" counter(step);
  position: absolute;
  top: -14px;
  left: 22px;
  background: var(--brand);
  color: #fff;
  padding: 5px 12px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 12.5px;
  box-shadow: 0 6px 14px -6px rgba(79, 70, 229, 0.45);
}
.process .step h4 { margin: 6px 0 8px; color: var(--text); }
.process .step p { color: var(--text-dim); font-size: 14px; margin: 0; }

/* ---------- CTA banner ---------- */
.cta-banner {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-3) 70%, var(--brand-2) 100%);
  color: #fff;
  border-radius: 20px;
  padding: 44px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}
.cta-banner h3 { margin: 0 0 8px; font-size: clamp(24px, 2.6vw, 30px); letter-spacing: -0.4px; color: #fff; }
.cta-banner p { margin: 0 auto 22px; max-width: 560px; color: rgba(255,255,255,0.85); }
.cta-banner .btn--primary { background: #fff; color: var(--brand); box-shadow: 0 8px 18px -8px rgba(0,0,0,0.20); }
.cta-banner .btn--primary:hover { background: #fff; color: var(--brand-3); }

/* ---------- Forms ---------- */
.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px;
  box-shadow: var(--shadow-md);
}
.form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.form .full { grid-column: 1 / -1; }
.field label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 6px; font-weight: 500; }
.field input, .field textarea, .field select {
  width: 100%;
  padding: 11px 13px;
  background: #fff;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  color: var(--text);
  font: inherit;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field input::placeholder, .field textarea::placeholder { color: var(--muted); }
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}
.field textarea { min-height: 120px; resize: vertical; }
.field .err { color: var(--danger); font-size: 12.5px; margin-top: 6px; }

.notice {
  padding: 13px 16px;
  border-radius: 10px;
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
  margin-bottom: 18px;
  font-size: 14.5px;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-alt);
  padding: 56px 0 24px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 28px;
}
.footer-grid h5 { color: var(--text); font-size: 13px; margin: 0 0 14px; text-transform: uppercase; letter-spacing: 1px; font-weight: 600; }
.footer-grid a { display: block; color: var(--text-dim); padding: 4px 0; font-size: 14.5px; }
.footer-grid a:hover { color: var(--brand); }
.footer-brand p { color: var(--text-dim); font-size: 14px; max-width: 320px; margin: 14px 0 0; }
.footer-bottom {
  border-top: 1px solid var(--line);
  margin-top: 36px;
  padding-top: 20px;
  color: var(--text-dim);
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Service detail ---------- */
.detail-section {
  padding: 70px 0 40px;
  background:
    radial-gradient(700px 360px at 90% -20%, rgba(79, 70, 229, 0.08), transparent 60%),
    var(--bg);
}
.detail-hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 56px;
  align-items: center;
}
.back-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--text-dim); font-size: 14px; margin-bottom: 14px;
  font-weight: 500;
}
.back-link:hover { color: var(--brand); }
.detail-hero h1 {
  font-size: clamp(34px, 4.5vw, 50px);
  letter-spacing: -1.2px;
  margin: 8px 0 12px;
  font-weight: 800;
  color: var(--text);
}
.detail-hero .tagline {
  color: var(--text-2); font-size: 19px; margin: 0 0 16px;
  font-weight: 500;
}
.detail-hero .description { color: var(--text-dim); font-size: 16px; margin: 0; }
.detail-hero .ctas { display: flex; gap: 12px; margin-top: 26px; flex-wrap: wrap; }

.detail-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  background:
    linear-gradient(160deg, var(--brand-soft) 0%, #fff 60%, var(--brand-soft-2) 100%);
  border: 1px solid var(--line);
  border-radius: 22px;
  display: grid;
  place-items: center;
  padding: 36px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.detail-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(260px 200px at 30% 20%, rgba(79, 70, 229, 0.14), transparent 60%);
}
.detail-icon-tile {
  position: relative;
  width: 160px; height: 160px;
  border-radius: 28px;
  display: grid; place-items: center;
  color: #fff;
  box-shadow: var(--shadow-lg);
}
.detail-decoration {
  position: absolute;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text);
  box-shadow: var(--shadow-sm);
}
.dd-1 { top: 14%;   right: 8%; color: var(--brand); }
.dd-2 { bottom: 18%; left: 6%; color: var(--brand-2); }
.dd-3 { top: 12%;   left: 8%;  color: var(--accent); }

.feature-list {
  list-style: none;
  padding: 0; margin: 24px 0 0;
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px 18px;
}
.feature-list li {
  display: flex; align-items: flex-start; gap: 8px;
  color: var(--text-2); font-size: 14.5px;
}
.feature-list li::before {
  content: "✓"; color: #fff;
  background: var(--brand-2);
  width: 18px; height: 18px; border-radius: 50%;
  display: inline-grid; place-items: center;
  font-size: 11px; font-weight: 700;
  flex-shrink: 0; margin-top: 2px;
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__visual { aspect-ratio: 16 / 11; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .cap-grid, .process { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .detail-hero { grid-template-columns: 1fr; }
  .detail-visual { aspect-ratio: 16/10; }
  .feature-list { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav__links {
    display: none; position: absolute; top: 64px; right: 16px; left: 16px;
    flex-direction: column; align-items: stretch;
    background: #fff; border: 1px solid var(--line); border-radius: 14px;
    padding: 10px; box-shadow: var(--shadow-lg);
  }
  .nav__links.is-open { display: flex; }
  .nav__toggle { display: inline-flex; }
  .form { grid-template-columns: 1fr; }
  .stats, .cap-grid, .process { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  section { padding: 60px 0; }
  .hero { padding: 50px 0 40px; }
  .cta-banner { padding: 32px 22px; }
}