/* ============================
   AJNode - Base & Variables
   ============================ */
:root {
  --color-primary: #2451ff;
  --color-primary-dark: #1638c4;
  --color-ink: #0f1729;
  --color-ink-soft: #4a5468;
  --color-muted: #6b7488;
  --color-border: #e4e7ee;
  --color-bg: #ffffff;
  --color-bg-alt: #f6f8fc;
  --color-success-bg: #e6f7ee;
  --color-success-text: #12794f;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 1px 2px rgba(15, 23, 41, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 41, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 41, 0.12);

  --container-width: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

h1, h2, h3, h4 {
  font-weight: 800;
  line-height: 1.2;
  margin: 0 0 0.5em;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 4vw, 3.2rem); }
h2 { font-size: clamp(1.5rem, 2.6vw, 2.2rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; color: var(--color-ink-soft); }

a {
  color: var(--color-primary);
  text-decoration: none;
}

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

ul { list-style: none; margin: 0; padding: 0; }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.75em;
}

.section { padding: 88px 0; }
.section--alt { background: var(--color-bg-alt); }

.section__heading { max-width: 640px; margin-bottom: 48px; }
.section__lead { font-size: 1.05rem; }
.section__cta { margin-top: 40px; text-align: center; }

/* ============================
   Buttons
   ============================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover { background: var(--color-primary-dark); transform: translateY(-1px); box-shadow: var(--shadow-md); }

.btn--secondary {
  background: var(--color-bg);
  color: var(--color-ink);
  border-color: var(--color-border);
}
.btn--secondary:hover { border-color: var(--color-primary); color: var(--color-primary); }

.btn--ghost {
  background: transparent;
  color: var(--color-ink);
  border-color: rgba(15, 23, 41, 0.15);
}
.btn--ghost:hover { border-color: var(--color-ink); }

.btn--lg { padding: 15px 32px; font-size: 1rem; }

/* ============================
   Navbar
   ============================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.navbar__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--color-ink);
}

.navbar__logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary), #6a8bff);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 800;
}

.navbar__menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.navbar__menu li a {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 999px;
  color: var(--color-ink-soft);
  font-weight: 500;
  font-size: 0.95rem;
  transition: background 0.15s ease, color 0.15s ease;
}

.navbar__menu li a:hover,
.navbar__menu li a.is-active {
  background: var(--color-bg-alt);
  color: var(--color-ink);
}

.navbar__menu li a.navbar__cta {
  background: var(--color-primary);
  color: #fff;
  margin-left: 8px;
}
.navbar__menu li a.navbar__cta:hover { background: var(--color-primary-dark); }

.navbar__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
}
.navbar__toggle span {
  width: 100%;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
}

/* ============================
   Hero (Home)
   ============================ */
.hero { padding: 90px 0 70px; }

.hero__inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero__lead {
  font-size: 1.1rem;
  max-width: 520px;
}

.hero__actions {
  display: flex;
  gap: 14px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.hero__visual {
  position: relative;
  height: 380px;
}

.hero__card {
  position: absolute;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  background: #fff;
  border: 1px solid var(--color-border);
}

.hero__card--1 {
  width: 78%;
  top: 20px;
  left: 0;
  padding: 22px;
}

.hero__card--2 {
  width: 62%;
  height: 55%;
  bottom: 0;
  right: 0;
  background: linear-gradient(135deg, var(--color-primary), #7fa0ff);
}

.dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 6px;
}
.dot--red { background: #ff5f57; }
.dot--yellow { background: #febc2e; }
.dot--green { background: #28c840; }

.hero__card-line {
  height: 10px;
  border-radius: 6px;
  background: var(--color-bg-alt);
  margin-top: 18px;
}
.hero__card-line.short { width: 60%; }

/* ============================
   Logos strip
   ============================ */
.logos { padding: 40px 0; border-bottom: 1px solid var(--color-border); border-top: 1px solid var(--color-border); }
.logos__label { text-align: center; color: var(--color-muted); font-size: 0.85rem; margin-bottom: 20px; }
.logos__row {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  font-weight: 700;
  color: var(--color-muted);
}

/* ============================
   Grids & Cards
   ============================ */
.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }

.card__icon { font-size: 1.8rem; margin-bottom: 14px; }

.card--person { text-align: center; }
.avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  margin: 0 auto 16px;
}
.card__role { color: var(--color-primary); font-weight: 600; font-size: 0.9rem; margin-bottom: 10px; }

/* Steps */
.steps { text-align: left; }
.step__number {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin-bottom: 16px;
}

/* Stats */
.stats { text-align: center; }
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat__number { font-size: 2.2rem; font-weight: 800; color: var(--color-primary); }
.stat__label { color: var(--color-muted); font-size: 0.9rem; }

/* Checklist */
.checklist li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 10px;
  color: var(--color-ink-soft);
}
.checklist li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 800;
}

/* Two-column layout */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

/* ============================
   Page header (inner pages)
   ============================ */
.page-header {
  padding: 72px 0 56px;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}
.page-header__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.75em;
}
.page-header h1 { margin-bottom: 0.4em; }
.page-header__subheading {
  max-width: 620px;
  margin: 0 auto;
  font-size: 1.05rem;
}

/* ============================
   Services page
   ============================ */
.service-list .service {
  padding: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

/* ============================
   Projects page
   ============================ */
.project-card {
  display: block;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #fff;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.project-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }

.project-card__thumb {
  height: 160px;
  background: linear-gradient(135deg, var(--color-primary), #7fa0ff);
}
.project-card__thumb--2 { background: linear-gradient(135deg, #10b981, #6ee7b7); }
.project-card__thumb--3 { background: linear-gradient(135deg, #f59e0b, #fcd34d); }
.project-card__thumb--4 { background: linear-gradient(135deg, #8b5cf6, #c4b5fd); }
.project-card__thumb--5 { background: linear-gradient(135deg, #ef4444, #fca5a5); }
.project-card__thumb--6 { background: linear-gradient(135deg, #0ea5e9, #7dd3fc); }

.project-card__body { padding: 20px; }
.project-card__tag {
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}
.project-card__body h3 { margin-bottom: 6px; color: var(--color-ink); }
.project-card__body p { margin: 0; font-size: 0.92rem; }

/* ============================
   Pricing page
   ============================ */
.pricing-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  text-align: left;
  position: relative;
  background: #fff;
}
.pricing-card--featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: scale(1.03);
}
.pricing-card__badge {
  position: absolute;
  top: -14px;
  left: 32px;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 999px;
}
.pricing-card__price {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--color-ink);
  margin: 10px 0;
}
.pricing-card__price span {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-muted);
  margin-left: 4px;
}
.pricing-card__desc { min-height: 48px; }
.pricing-card .btn { width: 100%; margin-top: 12px; }
.pricing-note { text-align: center; margin-top: 40px; color: var(--color-muted); }

/* ============================
   Contact page
   ============================ */
.contact-layout { grid-template-columns: 1.3fr 1fr; }

.contact-form { display: flex; flex-direction: column; gap: 18px; }
.form-row { display: flex; flex-direction: column; gap: 6px; }
.form-row label { font-weight: 600; font-size: 0.9rem; }
.form-row input,
.form-row select,
.form-row textarea {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--color-ink);
  background: #fff;
  transition: border-color 0.15s ease;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.alert {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-weight: 500;
}
.alert--success { background: var(--color-success-bg); color: var(--color-success-text); }

.contact-info {
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: 32px;
}
.contact-info__list { margin-top: 18px; display: flex; flex-direction: column; gap: 18px; }
.contact-info__label {
  display: block;
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  font-weight: 700;
  color: var(--color-muted);
  margin-bottom: 4px;
}

/* ============================
   CTA banner
   ============================ */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: var(--radius-lg);
  margin: 0 24px;
  color: #fff;
}
.cta-banner__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding: 56px 0;
}
.cta-banner h2 { color: #fff; margin-bottom: 6px; }
.cta-banner p { color: rgba(255, 255, 255, 0.85); margin: 0; }
.cta-banner .btn--primary { background: #fff; color: var(--color-primary); }
.cta-banner .btn--primary:hover { background: var(--color-bg-alt); }

/* ============================
   404
   ============================ */
.not-found { text-align: center; padding: 140px 0; }

/* ============================
   Footer
   ============================ */
.site-footer {
  background: var(--color-ink);
  color: rgba(255, 255, 255, 0.75);
  margin-top: 80px;
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding: 64px 0 40px;
}
.footer__brand .navbar__brand { color: #fff; margin-bottom: 14px; }
.footer__brand p { color: rgba(255, 255, 255, 0.6); max-width: 300px; }

.footer__col h4 {
  color: #fff;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}
.footer__col ul { display: flex; flex-direction: column; gap: 10px; }
.footer__col a { color: rgba(255, 255, 255, 0.7); }
.footer__col a:hover { color: #fff; }
.footer__contact li { color: rgba(255, 255, 255, 0.7); }

.footer__bottom { border-top: 1px solid rgba(255, 255, 255, 0.12); padding: 20px 0; }
.footer__bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
}
.footer__bottom p { margin: 0; color: rgba(255, 255, 255, 0.55); }
.footer__social { display: flex; gap: 20px; }
.footer__social a { color: rgba(255, 255, 255, 0.7); }
.footer__social a:hover { color: #fff; }

/* ============================
   Responsive
   ============================ */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { display: none; }
  .two-col { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .footer__inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .navbar__toggle { display: flex; }
  .navbar__menu {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 24px 20px;
    display: none;
    gap: 4px;
  }
  .navbar__menu.is-open { display: flex; }
  .navbar__menu li a { display: block; }
  .navbar__menu li a.navbar__cta { margin-left: 0; text-align: center; }

  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .pricing-card--featured { transform: none; }
  .footer__inner { grid-template-columns: 1fr; }
  .cta-banner__inner { flex-direction: column; text-align: center; }
  .cta-banner { margin: 0 16px; }
}