/* ════════════════════════════════════════════════════════════════════════
   Singla AI — style.css
   Brand: navy #0c1b2e · blue #2563eb · amber #d97706
   ════════════════════════════════════════════════════════════════════════ */

/* ── Reset ────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  background: #fff;
  color: #0c1b2e;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; }

/* ── Variables ────────────────────────────────────────────────────────── */
:root {
  --navy:   #0c1b2e;
  --navy2:  #162640;
  --blue:   #2563eb;
  --amber:  #d97706;
  --white:  #ffffff;
  --off:    #f5f4f2;
  --border: #e4e2de;
  --muted:  #6b7280;
  --r:      10px;
}

/* ════════════════════════════════════════════════════════════════════════
   HEADER / NAV
   ════════════════════════════════════════════════════════════════════════ */
#site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background .3s, box-shadow .3s;
}
#site-header.scrolled {
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
}
.header-inner {
  max-width: 1100px; margin: 0 auto;
  padding: 0 2rem;
  height: 68px;
  display: flex; align-items: center; justify-content: space-between;
}

/* Logo */
.logo {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1.35rem; font-weight: 800;
  letter-spacing: -.02em;
  color: #fff;
  transition: color .2s;
}
.logo span { color: var(--amber); }
#site-header.scrolled .logo { color: var(--navy); }

/* Nav links */
.nav-links { display: flex; align-items: center; gap: .25rem; }
.nav-links a {
  font-size: .9rem; font-weight: 500;
  padding: .45rem .85rem; border-radius: var(--r);
  color: rgba(255,255,255,.8);
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: #fff; }
#site-header.scrolled .nav-links a { color: #374151; }
#site-header.scrolled .nav-links a:hover { color: var(--navy); background: var(--off); }

.nav-cta {
  background: var(--blue) !important;
  color: #fff !important;
  border-radius: var(--r) !important;
  padding: .5rem 1.1rem !important;
  font-weight: 600 !important;
  transition: background .2s !important;
}
.nav-cta:hover { background: #1d4ed8 !important; }
#site-header.scrolled .nav-cta { background: var(--navy) !important; }
#site-header.scrolled .nav-cta:hover { background: var(--navy2) !important; }

/* Hamburger */
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
  color: #fff;
}
.hamburger span {
  display: block; width: 22px; height: 2px;
  background: currentColor; border-radius: 2px; transition: .25s;
}
#site-header.scrolled .hamburger { color: var(--navy); }

/* ════════════════════════════════════════════════════════════════════════
   BUTTONS
   ════════════════════════════════════════════════════════════════════════ */
.btn-cta {
  display: inline-block;
  background: var(--blue);
  color: #fff;
  font-weight: 600; font-size: .95rem;
  padding: .8rem 1.75rem; border-radius: var(--r);
  transition: background .2s, transform .15s;
}
.btn-cta:hover { background: #1d4ed8; transform: translateY(-1px); }

.btn-ghost {
  display: inline-block;
  background: transparent;
  color: #fff;
  font-weight: 600; font-size: .95rem;
  padding: .78rem 1.75rem; border-radius: var(--r);
  border: 2px solid rgba(255,255,255,.35);
  transition: border-color .2s, background .2s;
}
.btn-ghost:hover { border-color: rgba(255,255,255,.7); background: rgba(255,255,255,.08); }

/* ════════════════════════════════════════════════════════════════════════
   HERO
   ════════════════════════════════════════════════════════════════════════ */
#hero {
  background: var(--navy);
  padding: 160px 2rem 100px;
  text-align: center;
}
.hero-inner { max-width: 760px; margin: 0 auto; }

#hero h1 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 800; line-height: 1.05;
  letter-spacing: -.04em;
  color: #fff;
  margin-bottom: .75rem;
}
.hero-sub {
  font-size: clamp(1.1rem, 3vw, 1.55rem);
  font-weight: 500; color: rgba(255,255,255,.7);
  margin-bottom: 1.25rem;
  letter-spacing: -.01em;
}
.hero-body {
  font-size: 1.05rem; color: rgba(255,255,255,.55);
  max-width: 580px; margin: 0 auto 2.5rem;
  line-height: 1.7;
}
.hero-meta {
  display: inline-flex; align-items: center; gap: 2rem;
  margin-bottom: 2.5rem;
}
.hero-stat { display: flex; flex-direction: column; align-items: center; }
.hero-stat strong {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 2rem; font-weight: 800; color: #fff;
  line-height: 1; letter-spacing: -.04em;
}
.hero-stat span { font-size: .78rem; color: rgba(255,255,255,.5); font-weight: 500; letter-spacing: .06em; text-transform: uppercase; margin-top: .2rem; }
.hero-divider { width: 1px; height: 48px; background: rgba(255,255,255,.15); }
.hero-founded { display: flex; flex-direction: column; align-items: center; }
.hero-founded span { font-size: .78rem; color: rgba(255,255,255,.5); font-weight: 500; letter-spacing: .06em; text-transform: uppercase; }
.hero-founded strong { font-size: 1.05rem; font-weight: 600; color: rgba(255,255,255,.85); margin-top: .2rem; }

/* ════════════════════════════════════════════════════════════════════════
   SHARED SECTION STYLES
   ════════════════════════════════════════════════════════════════════════ */
section { padding: 6rem 2rem; }
.section-inner { max-width: 1100px; margin: 0 auto; }

.section-eyebrow {
  font-size: .75rem; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--blue); margin-bottom: .75rem;
}
.section-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800; line-height: 1.1;
  letter-spacing: -.03em; color: var(--navy);
  margin-bottom: 1rem;
}
.section-sub {
  font-size: 1.05rem; color: var(--muted);
  max-width: 560px; line-height: 1.7;
  margin-bottom: 3.5rem;
}

/* ════════════════════════════════════════════════════════════════════════
   PROCESS
   ════════════════════════════════════════════════════════════════════════ */
#process { background: var(--off); }

.process-list { display: flex; flex-direction: column; gap: 1.5rem; margin-bottom: 4rem; }

.process-item {
  display: grid; grid-template-columns: 80px 1fr;
  gap: 2rem; align-items: start;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2.25rem 2.5rem;
  transition: box-shadow .25s;
}
.process-item:hover { box-shadow: 0 6px 30px rgba(12,27,46,.08); }

.process-num {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 2.5rem; font-weight: 800;
  color: var(--border); letter-spacing: -.04em;
  line-height: 1;
  user-select: none;
}

.process-content h3 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1.25rem; font-weight: 700;
  color: var(--navy); margin-bottom: .35rem;
}
.process-tagline {
  font-size: .9rem; font-weight: 600;
  color: var(--amber); margin-bottom: 1.25rem;
}
.process-content ul {
  list-style: none; display: flex; flex-direction: column; gap: .7rem;
}
.process-content ul li {
  font-size: .95rem; color: #374151; line-height: 1.6;
  padding-left: 1.4rem; position: relative;
}
.process-content ul li::before {
  content: '—'; position: absolute; left: 0;
  color: var(--blue); font-weight: 700;
}

.process-cta { text-align: center; }
.process-cta p { font-size: 1.05rem; color: var(--muted); margin-bottom: 1.25rem; }

/* ════════════════════════════════════════════════════════════════════════
   TESTIMONIALS
   ════════════════════════════════════════════════════════════════════════ */
#testimonials { background: #fff; }

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.testimonial-card {
  background: var(--off);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2rem 1.75rem;
  display: flex; flex-direction: column; justify-content: space-between;
  gap: 1.5rem;
  transition: box-shadow .25s;
}
.testimonial-card:hover { box-shadow: 0 6px 30px rgba(12,27,46,.07); }

.testimonial-card blockquote {
  font-size: .97rem; color: #1f2937; line-height: 1.7;
  font-style: italic;
}
.testimonial-author { display: flex; flex-direction: column; gap: .2rem; }
.testimonial-author strong { font-size: .9rem; font-weight: 700; color: var(--navy); }
.testimonial-author span  { font-size: .82rem; color: var(--muted); }

/* ════════════════════════════════════════════════════════════════════════
   ABOUT
   ════════════════════════════════════════════════════════════════════════ */
#about { background: var(--off); }
.about-inner {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 5rem; align-items: center;
}
.about-text { display: flex; flex-direction: column; gap: .25rem; }
.about-text .section-eyebrow { margin-bottom: .5rem; }
.about-text .section-title   { margin-bottom: .5rem; }
.about-name {
  font-size: 1.5rem; font-weight: 700; color: var(--navy);
  margin-bottom: 1.5rem;
}
.about-text p {
  font-size: .97rem; color: #374151; line-height: 1.75;
  margin-bottom: .85rem;
}
.about-link {
  display: inline-block;
  font-size: .9rem; font-weight: 600; color: var(--blue);
  margin-top: .75rem;
  transition: color .2s;
}
.about-link:hover { color: #1d4ed8; }

.about-photo-wrap {
  border-radius: 18px; overflow: hidden;
  box-shadow: 0 16px 60px rgba(12,27,46,.14);
}
.about-photo-wrap img { width: 100%; }

/* ════════════════════════════════════════════════════════════════════════
   CTA
   ════════════════════════════════════════════════════════════════════════ */
#cta {
  background: var(--navy);
  text-align: center;
  padding: 7rem 2rem;
}
.cta-inner { max-width: 640px; margin: 0 auto; }
#cta h2 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: clamp(1.9rem, 4vw, 2.75rem);
  font-weight: 800; line-height: 1.15;
  letter-spacing: -.03em; color: #fff;
  margin-bottom: .85rem;
}
#cta p { font-size: 1.05rem; color: rgba(255,255,255,.6); margin-bottom: 2.25rem; line-height: 1.7; }
.cta-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ════════════════════════════════════════════════════════════════════════
   FOOTER
   ════════════════════════════════════════════════════════════════════════ */
#site-footer {
  background: var(--navy2);
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 3rem 2rem;
}
.footer-inner { max-width: 1100px; margin: 0 auto; }
.footer-top {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 1.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,.06);
  margin-bottom: 1.5rem;
}
.footer-logo { font-size: 1.2rem; }
.footer-nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-nav a { font-size: .875rem; color: rgba(255,255,255,.5); transition: color .2s; }
.footer-nav a:hover { color: #fff; }
.footer-bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: .5rem;
}
.footer-bottom p { font-size: .8rem; color: rgba(255,255,255,.3); }

/* ════════════════════════════════════════════════════════════════════════
   FADE-IN ANIMATION
   ════════════════════════════════════════════════════════════════════════ */
.fade-in {
  opacity: 0; transform: translateY(20px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-in.visible { opacity: 1; transform: none; }

/* ════════════════════════════════════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .about-inner { grid-template-columns: 1fr; }
  .about-photo-wrap { max-width: 380px; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .process-item { grid-template-columns: 60px 1fr; gap: 1.25rem; padding: 1.75rem; }
}

@media (max-width: 640px) {
  section { padding: 4rem 1.25rem; }
  #hero { padding: 130px 1.25rem 80px; }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; align-items: stretch;
    position: fixed; inset: 0;
    background: var(--navy); z-index: 200;
    padding: 5rem 1.5rem 2rem;
    gap: .25rem;
  }
  .nav-links.open a { font-size: 1.1rem; padding: .9rem 1rem; color: rgba(255,255,255,.85); border-radius: var(--r); }
  .nav-links.open a:hover { background: rgba(255,255,255,.07); color: #fff; }
  .nav-links.open .nav-cta { text-align: center; margin-top: .5rem; }
  .hamburger { display: flex; }
  .process-item { grid-template-columns: 1fr; gap: .75rem; }
  .process-num { font-size: 1.5rem; }
  .cta-buttons { flex-direction: column; }
  .cta-buttons a { text-align: center; }
  .footer-top { flex-direction: column; align-items: flex-start; }
  .footer-bottom { flex-direction: column; }
}