/* ===================================================
   BotLab AEC — Main Stylesheet
   Aesthetic: Precision Futurism · Deep Spatial Dark
   =================================================== */

:root {
  --navy:        #163827;
  --navy-light:  #1E4F36;
  --navy-deep:   #0C2419;
  --midnight:    #06100C;
  --bg:          #F4F7F5;
  --bg-off:      #EAEFE9;
  --white:       #FFFFFF;
  --text:        #121A14;
  --text-muted:  #4E6055;
  --accent:      #00A878;
  --accent-glow: rgba(0,168,120,0.18);
  --line:        rgba(22,56,39,0.12);
  --line-light:  rgba(255,255,255,0.08);

  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

  --radius-sm: 4px;
  --radius-md: 10px;
  --radius-lg: 20px;
}

/* ── Reset ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

/* ── Typography ─────────────────────────────── */
.display-xl {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6.5vw, 6rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.03em;
}
.display-lg {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 3rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.025em;
}
.display-md {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 1.8vw, 1.375rem);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.body-lg  { font-size: 1.125rem; line-height: 1.7; font-weight: 300; }
.body-md  { font-size: 1rem;     line-height: 1.65; }
.body-sm  { font-size: 0.875rem; line-height: 1.6; color: var(--text-muted); }
.label    { font-family: var(--font-display); font-size: 0.7rem; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; }

/* ── Layout ─────────────────────────────────── */
.container {
  width: min(1200px, 92vw);
  margin-inline: auto;
}
.section {
  padding-block: clamp(5rem, 9vw, 9rem);
}

/* ── NAV ─────────────────────────────────────── */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.25rem 0;
  transition: background 0.4s var(--ease-in-out), padding 0.4s var(--ease-in-out),
              box-shadow 0.4s var(--ease-in-out);
}
.site-nav.scrolled {
  background: rgba(9,25,42,0.92);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  padding: 0.875rem 0;
  box-shadow: 0 1px 0 var(--line-light);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}
.nav-logo-mark {
  width: 34px; height: 34px;
  background: var(--navy);
  border: 1.5px solid rgba(59,143,212,0.5);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  overflow: hidden;
}
.nav-logo-mark::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(59,143,212,0.25) 100%);
}
.nav-logo-mark svg { width: 18px; height: 18px; position: relative; z-index: 1; }
.nav-logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  color: var(--white);
}
.nav-logo-text span { color: var(--accent); }
.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}
.nav-links a {
  color: rgba(255,255,255,0.65);
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  transition: color 0.25s;
}
.nav-links a:hover { color: var(--white); }
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--navy);
  color: var(--white) !important;
  border: 1px solid rgba(59,143,212,0.4);
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem !important;
  font-family: var(--font-display);
  font-weight: 600 !important;
  letter-spacing: 0.04em !important;
  text-transform: uppercase;
  transition: background 0.25s, border-color 0.25s !important;
}
.nav-cta:hover {
  background: var(--navy-light) !important;
  border-color: var(--accent) !important;
}

/* ── HERO ─────────────────────────────────────── */
#hero {
  min-height: 100svh;
  background: var(--midnight);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  position: relative;
  overflow: hidden;
  padding-bottom: clamp(4rem, 8vw, 7rem);
  padding-top: 8rem;
}

/* Grid overlay */
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,168,120,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,168,120,0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, black 30%, transparent 90%);
}

/* Glow orbs */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}
.hero-orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(22,56,39,0.65) 0%, transparent 70%);
  top: -200px; right: -100px;
}
.hero-orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(0,168,120,0.14) 0%, transparent 70%);
  bottom: 100px; left: -80px;
}

/* Hero SVG graphic */
.hero-graphic {
  position: absolute;
  top: 50%;
  right: 5%;
  transform: translateY(-55%);
  width: min(480px, 40vw);
  opacity: 0.18;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  color: var(--accent);
}
.hero-eyebrow .dot {
  width: 5px; height: 5px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.7); }
}
.hero-heading {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 7vw, 6.5rem);
  font-weight: 800;
  line-height: 0.96;
  letter-spacing: -0.04em;
  color: var(--white);
  max-width: 14ch;
  margin-bottom: 2rem;
}
.hero-heading .word-highlight {
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(59,143,212,0.7);
}
.hero-heading .word-accent {
  color: var(--accent);
}
.hero-sub {
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  font-weight: 300;
  color: rgba(255,255,255,0.55);
  max-width: 52ch;
  line-height: 1.7;
  margin-bottom: 3rem;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  background: var(--navy);
  color: var(--white);
  border: 1px solid rgba(59,143,212,0.45);
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: background 0.3s, border-color 0.3s, transform 0.2s;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 50%, rgba(59,143,212,0.15) 100%);
  opacity: 0;
  transition: opacity 0.3s;
}
.btn-primary:hover { background: var(--navy-light); border-color: var(--accent); transform: translateY(-1px); }
.btn-primary:hover::after { opacity: 1; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255,255,255,0.55);
  font-size: 0.875rem;
  font-weight: 400;
  transition: color 0.25s;
}
.btn-ghost svg { transition: transform 0.25s; }
.btn-ghost:hover { color: rgba(255,255,255,0.9); }
.btn-ghost:hover svg { transform: translateX(4px); }

.hero-stats {
  display: flex;
  gap: 3rem;
  margin-top: 5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line-light);
}
.stat-item {}
.stat-value {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.03em;
}
.stat-value span { color: var(--accent); }
.stat-label { font-size: 0.75rem; color: rgba(255,255,255,0.4); margin-top: 0.2rem; letter-spacing: 0.08em; text-transform: uppercase; }

/* ── WHY SECTION ─────────────────────────────── */
#why {
  background: var(--bg);
  position: relative;
}
.section-label {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  margin-bottom: 1.25rem;
}
.section-label::before {
  content: '';
  display: block;
  width: 2rem;
  height: 1.5px;
  background: var(--navy);
}
.section-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem 5rem;
  align-items: start;
  margin-bottom: 4.5rem;
}
.section-intro .display-lg { grid-column: 1; color: var(--text); }
.section-intro-text {
  grid-column: 2;
  margin-top: 0.75rem;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--text-muted);
  font-weight: 300;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5px;
  background: var(--line);
  border: 1.5px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.value-card {
  background: var(--white);
  padding: 2.25rem 1.875rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: background 0.3s;
  position: relative;
  overflow: hidden;
}
.value-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--navy), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}
.value-card:hover { background: #F9FAFC; }
.value-card:hover::before { transform: scaleX(1); }

.card-icon {
  width: 44px; height: 44px;
  background: var(--bg-off);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--navy);
  flex-shrink: 0;
  transition: background 0.3s, border-color 0.3s;
}
.value-card:hover .card-icon {
  background: rgba(31,78,121,0.07);
  border-color: rgba(31,78,121,0.25);
}
.card-title {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}
.card-body { font-size: 0.9rem; line-height: 1.65; color: var(--text-muted); }

/* ── ABOUT SECTION ───────────────────────────── */
#about {
  background: var(--navy-deep);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
#about::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.5;
}
.about-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.about-text .section-label { color: rgba(255,255,255,0.45); }
.about-text .section-label::before { background: rgba(255,255,255,0.25); }
.about-text .display-lg { color: var(--white); margin-bottom: 1.75rem; }
.about-text p { font-size: 1.0625rem; font-weight: 300; color: rgba(255,255,255,0.65); line-height: 1.75; }

.about-visual {
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.about-visual-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-sm);
  padding: 1.5rem 1.75rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  transition: background 0.3s;
  margin-bottom: 0.75rem;
}
.about-visual-card:hover { background: rgba(255,255,255,0.07); }
.avc-num {
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent);
  min-width: 2rem;
}
.avc-text {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.7);
  font-weight: 300;
}
.avc-text strong { color: var(--white); font-weight: 500; }

/* ── STATUS / CONTACT ────────────────────────── */
#contact {
  background: var(--bg);
  position: relative;
  overflow: hidden;
}
#contact::after {
  content: '';
  position: absolute;
  bottom: -200px; right: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(31,78,121,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.contact-inner {
  max-width: 780px;
}
.contact-inner .display-lg { margin-bottom: 1.25rem; }
.contact-inner > p { font-size: 1.0625rem; font-weight: 300; color: var(--text-muted); line-height: 1.75; margin-bottom: 2.5rem; }

.contact-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 3rem;
}
.contact-option {
  border: 1.5px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  background: var(--white);
  transition: border-color 0.25s, box-shadow 0.25s;
  position: relative;
  overflow: hidden;
}
.contact-option:hover {
  border-color: rgba(31,78,121,0.3);
  box-shadow: 0 4px 24px rgba(31,78,121,0.06);
}
.co-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(59,143,212,0.08);
  padding: 0.2rem 0.6rem;
  border-radius: 2px;
  margin-bottom: 0.875rem;
}
.co-title {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
}
.co-text { font-size: 0.875rem; color: var(--text-muted); line-height: 1.6; }

.contact-email-block {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem 1.75rem;
  background: var(--navy-deep);
  border-radius: var(--radius-md);
  max-width: 480px;
}
.ceb-icon {
  width: 42px; height: 42px;
  background: rgba(59,143,212,0.2);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}
.ceb-label { font-size: 0.7rem; color: rgba(255,255,255,0.4); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 0.25rem; }
.ceb-address {
  color: var(--white);
  font-size: 0.9375rem;
  font-weight: 400;
  letter-spacing: 0.01em;
}

/* ── FOOTER ──────────────────────────────────── */
.site-footer {
  background: var(--midnight);
  padding: 2.5rem 0;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  color: rgba(255,255,255,0.5);
  letter-spacing: -0.01em;
}
.footer-logo span { color: var(--accent); }
.footer-meta { font-size: 0.78rem; color: rgba(255,255,255,0.25); }
.footer-meta a { color: rgba(255,255,255,0.4); transition: color 0.2s; }
.footer-meta a:hover { color: rgba(255,255,255,0.7); }

/* ── FADE-IN ANIMATIONS ──────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s var(--ease-out), transform 0.75s var(--ease-out);
}
.fade-in.visible { opacity: 1; transform: translateY(0); }
.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* ── RESPONSIVE ──────────────────────────────── */
@media (max-width: 1024px) {
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .section-intro { grid-template-columns: 1fr; gap: 1.5rem; }
  .section-intro .display-lg { grid-column: 1; }
  .section-intro-text { grid-column: 1; margin-top: 0; }
  .about-inner { grid-template-columns: 1fr; gap: 3rem; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-right { gap: 0.75rem; }
  .hero-heading { font-size: clamp(2.75rem, 11vw, 4.5rem); }
  .hero-stats { gap: 2rem; flex-wrap: wrap; }
  .values-grid { grid-template-columns: 1fr; }
  .contact-options { grid-template-columns: 1fr; }
  .hero-graphic { display: none; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .footer-inner { flex-direction: column; text-align: center; }
}

/* ── SCROLLBAR ────────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--midnight); }
::-webkit-scrollbar-thumb { background: var(--navy); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── NAV RIGHT + LANG SWITCHER ───────────────── */
.nav-right {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 0;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  -webkit-appearance: none;
  appearance: none;
}
.lang-switcher-sep {
  color: rgba(255,255,255,0.2);
  font-size: 0.65rem;
  line-height: 1;
  padding: 0 4px;
  pointer-events: none;
  user-select: none;
}
.lang-btn {
  background: transparent !important;
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
  -webkit-appearance: none;
  appearance: none;
  padding: 0;
  margin: 0;
  cursor: pointer;
  color: rgba(255,255,255,0.35);
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  transition: color 0.2s;
  line-height: 1;
  -webkit-tap-highlight-color: transparent;
}
.lang-btn:hover,
.lang-btn:focus,
.lang-btn:active {
  background: transparent !important;
  color: rgba(255,255,255,0.7);
  outline: none !important;
  box-shadow: none !important;
}
.lang-btn.active {
  background: transparent !important;
  color: rgba(255,255,255,0.9);
}