/* ===========================
   JL Intelligence — Main Stylesheet
   =========================== */

:root {
  --clr-bg:        #0a0c10;
  --clr-surface:   #11141a;
  --clr-border:    #1e2330;
  --clr-accent:    #c8a96e;       /* gold */
  --clr-accent2:   #4a7aff;       /* blue */
  --clr-text:      #e8eaf0;
  --clr-muted:     #8892a4;
  --clr-white:     #ffffff;
  --clr-light-bg:  #f5f6f8;
  --clr-dark-text: #0d0f14;

  --font-sans:  'Inter', sans-serif;
  --font-serif: 'Playfair Display', serif;

  --max-w: 1200px;
  --nav-h: 72px;
  --radius: 4px;
  --transition: 0.25s ease;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--clr-bg);
  color: var(--clr-text);
  font-size: 16px;
  line-height: 1.7;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }

/* ---- Reusable ---- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 32px; }

.section-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 14px;
}
.section-label.light { color: var(--clr-accent); }

h2 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  line-height: 1.2;
  color: var(--clr-white);
  margin-bottom: 24px;
}
.center-title { text-align: center; }
.center-sub {
  text-align: center;
  color: var(--clr-muted);
  max-width: 640px;
  margin: 0 auto 64px;
  font-size: 1.05rem;
}

.btn-primary {
  display: inline-block;
  background: var(--clr-accent);
  color: var(--clr-dark-text);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 14px 32px;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
  border: none;
  cursor: pointer;
}
.btn-primary:hover { background: #e0c080; transform: translateY(-1px); }
.btn-primary.full-width { width: 100%; text-align: center; }

.btn-ghost {
  display: inline-block;
  border: 1px solid rgba(255,255,255,0.25);
  color: var(--clr-text);
  font-size: 14px;
  font-weight: 500;
  padding: 13px 32px;
  border-radius: var(--radius);
  transition: border-color var(--transition), background var(--transition);
}
.btn-ghost:hover { border-color: var(--clr-accent); background: rgba(200,169,110,0.06); }

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

section { padding: 120px 0; }
.dark-section { background: var(--clr-surface); }
.light-bg { background: var(--clr-light-bg); color: var(--clr-dark-text); }
.light-bg h2 { color: var(--clr-dark-text); }
.light-bg .section-label { color: var(--clr-accent2); }
.light-bg p { color: #444; }

/* ---- NAV ---- */
#navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}
#navbar.scrolled {
  background: rgba(10,12,16,0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--clr-border);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--clr-white);
  letter-spacing: 0.02em;
}
.logo span { color: var(--clr-accent); }

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--clr-muted);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--clr-white); }
.btn-nav {
  background: var(--clr-accent) !important;
  color: var(--clr-dark-text) !important;
  padding: 8px 22px !important;
  border-radius: var(--radius);
  font-weight: 600 !important;
}
.btn-nav:hover { background: #e0c080 !important; color: var(--clr-dark-text) !important; }

.hamburger { display: none; background: none; border: none; color: var(--clr-white); font-size: 1.4rem; cursor: pointer; }

/* ---- HERO ---- */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 0;
  background:
    linear-gradient(135deg, rgba(10,12,16,0.92) 50%, rgba(14,20,40,0.88) 100%),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%231e2330' fill-opacity='0.5'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  overflow: hidden;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(74,122,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
  padding-top: var(--nav-h);
}
.hero-eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 24px;
}
#hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.8rem, 6vw, 5.2rem);
  font-weight: 600;
  line-height: 1.1;
  color: var(--clr-white);
  margin-bottom: 28px;
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--clr-muted);
  max-width: 540px;
  margin-bottom: 44px;
  line-height: 1.8;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hero-scroll-hint span {
  display: block;
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--clr-accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.1); }
}

/* ---- STATS ---- */
#stats {
  padding: 0;
  background: var(--clr-accent);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}
.stat-item {
  padding: 48px 24px;
  text-align: center;
  border-right: 1px solid rgba(0,0,0,0.1);
  color: var(--clr-dark-text);
}
.stat-item:last-child { border-right: none; }
.stat-number {
  font-family: var(--font-serif);
  font-size: 3.2rem;
  font-weight: 600;
  color: var(--clr-dark-text);
  line-height: 1;
}
.stat-unit { font-size: 2rem; font-weight: 600; color: var(--clr-dark-text); }
.stat-item p { font-size: 13px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; margin-top: 8px; opacity: 0.75; }

/* ---- ABOUT ---- */
#about { background: var(--clr-bg); }
#about h2 { color: var(--clr-white); }
#about .col-text p { color: var(--clr-muted); margin-bottom: 16px; }
#about .col-text .btn-primary { margin-top: 8px; }

.about-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: 8px;
  padding: 40px;
  position: relative;
  overflow: hidden;
}
.about-card-line {
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--clr-accent);
}
.about-card ul { list-style: none; }
.about-card li {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 14px 0;
  border-bottom: 1px solid var(--clr-border);
  gap: 16px;
}
.about-card li:last-child { border-bottom: none; }
.about-card li strong { color: var(--clr-muted); font-size: 13px; font-weight: 500; min-width: 120px; }
.about-card li span { color: var(--clr-text); font-size: 14px; text-align: right; }

/* ---- APPROACH ---- */
#approach { background: var(--clr-surface); }
#approach h2 { color: var(--clr-white); }

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  margin-top: 16px;
}
.step {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--clr-border);
  padding: 40px 32px;
  position: relative;
  transition: border-color var(--transition), background var(--transition);
}
.step:hover {
  border-color: var(--clr-accent);
  background: rgba(200,169,110,0.04);
}
.step-icon {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 600;
  color: rgba(200,169,110,0.15);
  margin-bottom: 20px;
  line-height: 1;
}
.step h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--clr-white);
  margin-bottom: 12px;
}
.step p { font-size: 14px; color: var(--clr-muted); line-height: 1.75; }

/* ---- STRATEGIES ---- */
#strategies { background: var(--clr-bg); }
#strategies h2 { color: var(--clr-white); }

.strategy-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 16px;
}
.strategy-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: 8px;
  padding: 40px;
  transition: border-color var(--transition), transform var(--transition);
}
.strategy-card:hover { border-color: var(--clr-accent2); transform: translateY(-4px); }
.strategy-icon {
  font-size: 1.6rem;
  color: var(--clr-accent);
  margin-bottom: 20px;
}
.strategy-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--clr-white);
  margin-bottom: 12px;
}
.strategy-card p { font-size: 14px; color: var(--clr-muted); line-height: 1.75; }

/* ---- TEAM ---- */
#team { background: var(--clr-light-bg); }
.section-intro {
  color: #555;
  font-size: 1.05rem;
  max-width: 600px;
  margin-bottom: 56px;
}
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.team-card {
  background: #fff;
  border: 1px solid #e4e7ee;
  border-radius: 8px;
  padding: 36px 28px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.team-card:hover { box-shadow: 0 12px 40px rgba(0,0,0,0.1); transform: translateY(-4px); }
.avatar {
  width: 64px; height: 64px;
  background: var(--clr-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--clr-dark-text);
  margin-bottom: 20px;
}
.team-card h3 { font-size: 1.05rem; font-weight: 700; color: #0d0f14; margin-bottom: 4px; }
.team-card .title { font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--clr-accent2); margin-bottom: 12px; }
.team-card .bio { font-size: 13.5px; color: #666; line-height: 1.7; }

/* ---- PRINCIPLES ---- */
#principles { background: var(--clr-bg); }
.principles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  margin-top: 16px;
}
.principle {
  padding: 40px 32px;
  border: 1px solid var(--clr-border);
  background: rgba(255,255,255,0.02);
}
.principle h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--clr-accent);
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}
.principle p { font-size: 14px; color: var(--clr-muted); line-height: 1.75; }

/* ---- CONTACT ---- */
#contact { background: var(--clr-bg); }
#contact h2 { color: var(--clr-white); }
#contact .col-text p { color: var(--clr-muted); margin-bottom: 32px; }
.contact-info { display: flex; flex-direction: column; gap: 0; }
.contact-item {
  display: flex;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--clr-border);
  font-size: 14px;
}
.contact-item strong { color: var(--clr-muted); }
.contact-item span { color: var(--clr-text); }

.form-group { margin-bottom: 22px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; color: var(--clr-muted); margin-bottom: 8px; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 13px 16px;
  font-size: 14px;
  color: var(--clr-text);
  font-family: var(--font-sans);
  transition: border-color var(--transition);
  outline: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #3e4656; }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--clr-accent); }
.form-group select option { background: var(--clr-surface); }
.form-group textarea { resize: vertical; }

/* ---- FOOTER ---- */
footer {
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  padding: 60px 0 40px;
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}
.footer-brand { margin-bottom: 12px; }
.footer-brand .logo { font-size: 1.3rem; margin-bottom: 6px; }
.footer-brand p { font-size: 13px; color: var(--clr-muted); }
.footer-links {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  margin: 32px 0;
}
.footer-links a { font-size: 13px; color: var(--clr-muted); transition: color var(--transition); }
.footer-links a:hover { color: var(--clr-white); }
.footer-legal p { font-size: 12px; color: #3e4656; margin-bottom: 6px; line-height: 1.6; max-width: 700px; }

/* ---- TOAST ---- */
.toast {
  position: fixed;
  bottom: 32px;
  right: 32px;
  background: var(--clr-accent);
  color: var(--clr-dark-text);
  font-size: 14px;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.3s, transform 0.3s;
  z-index: 9999;
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translateY(0); }

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .process-steps,
  .principles-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item { border-right: 1px solid rgba(0,0,0,0.1); border-bottom: 1px solid rgba(0,0,0,0.1); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(10,12,16,0.97);
    padding: 24px 32px;
    gap: 20px;
    border-bottom: 1px solid var(--clr-border);
  }
  .hamburger { display: block; }
  .two-col { grid-template-columns: 1fr; gap: 48px; }
  .strategy-grid { grid-template-columns: 1fr; }
  .process-steps,
  .principles-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  section { padding: 80px 0; }
  #hero h1 { font-size: 2.4rem; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; }
  .btn-primary, .btn-ghost { text-align: center; }
}