/* ===========================
   ONYXBOX SOLUTIONS – STYLES
   =========================== */

:root {
  --bg:         #0d0d0d;
  --bg-card:    #141414;
  --bg-dark:    #080808;
  --border:     #242424;
  --accent:     #34d399;
  --accent-dim: #1a9e6a;
  --text:       #e4e4e8;
  --text-muted: #787880;
  --text-faint: #343438;
  --white:      #f0f0f2;
  --radius:     8px;
  --radius-lg:  16px;
  --transition: 0.25s ease;
  --nav-h:      72px;
  --mono:       'JetBrains Mono', 'Courier New', monospace;
  --sans:       'Inter', system-ui, sans-serif;
}

/* RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* UTILITIES */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}
.accent { color: var(--accent); }
.section-dark { background: var(--bg-dark); }
section { padding: 96px 0; }

.section-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}
.section-header {
  max-width: 640px;
  margin-bottom: 64px;
}
.section-header h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 700; line-height: 1.2; }
.section-sub { margin-top: 16px; color: var(--text-muted); font-size: 1.05rem; }

h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 700; line-height: 1.2; }
h3 { font-size: 1.15rem; font-weight: 600; }

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--accent);
  color: #0d0d0d;
}
.btn-primary:hover { background: #5de8ae; transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-full { width: 100%; justify-content: center; }

/* ============================
   NAVIGATION
   ============================ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition);
}
#navbar.scrolled {
  background: rgba(10, 10, 15, 0.95);
  border-color: var(--border);
  backdrop-filter: blur(12px);
}
.nav-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--white);
}
.logo-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--accent);
  color: #0d0d0d;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.85rem;
  border-radius: 6px;
  flex-shrink: 0;
}
.logo-thin { font-weight: 300; color: var(--text-muted); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--white); }
.nav-cta {
  background: var(--accent) !important;
  color: #0a0a0f !important;
  padding: 9px 20px;
  border-radius: var(--radius);
  font-weight: 600 !important;
}
.nav-cta:hover { background: #d0d6e0 !important; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================
   HERO
   ============================ */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  padding: var(--nav-h) 0 64px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 30%, transparent 100%);
  opacity: 0.4;
}
.hero-content {
  position: relative;
  z-index: 1;
}
.hero-eyebrow {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}
#hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
  max-width: 800px;
}
.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 40px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.stat-num {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
}
.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}
.hero-scroll {
  position: absolute;
  bottom: 32px;
  right: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  z-index: 1;
}
.hero-scroll span {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  writing-mode: vertical-rl;
}
.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--text-faint), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50%       { opacity: 1;   transform: scaleY(0.7); }
}

/* ============================
   ABOUT
   ============================ */
#about .about-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 80px;
  align-items: start;
}
.about-text h2 { margin-bottom: 24px; }
.about-text p { color: var(--text-muted); margin-bottom: 20px; line-height: 1.8; }
.about-text strong { color: var(--text); }
.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}
.tag {
  padding: 6px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: var(--transition);
}
.tag:hover { border-color: var(--accent); color: var(--accent); }

.about-aside { display: flex; flex-direction: column; gap: 20px; }
.aside-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color var(--transition);
}
.aside-card:hover { border-color: var(--accent); }
.aside-icon { font-size: 1.5rem; margin-bottom: 12px; }
.aside-card h3 { font-size: 1rem; margin-bottom: 10px; }
.aside-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }

/* ============================
   SERVICES
   ============================ */
#services { padding: 96px 0; }
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 2px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.service-card {
  background: var(--bg-card);
  padding: 36px 32px;
  transition: background var(--transition);
  position: relative;
}
.service-card:hover { background: #1a1a1a; }
.service-number {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: 20px;
  letter-spacing: 0.1em;
}
.service-card h3 {
  font-size: 1.05rem;
  margin-bottom: 12px;
  color: var(--white);
}
.service-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; }

/* ============================
   TECH EXPERTISE
   ============================ */
#expertise .tech-categories {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 32px;
}
.tech-category {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color var(--transition);
}
.tech-category:hover { border-color: var(--accent); }
.tech-category h3 {
  font-size: 0.95rem;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
}
.cat-icon { font-size: 1.1rem; }
.tech-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tech-tag {
  padding: 5px 12px;
  background: rgba(52, 211, 153, 0.07);
  border: 1px solid rgba(52, 211, 153, 0.2);
  border-radius: 100px;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  transition: var(--transition);
}
.tech-tag:hover {
  background: rgba(52, 211, 153, 0.14);
  border-color: var(--accent);
}

/* ============================
   TIMELINE
   ============================ */
.timeline {
  position: relative;
  padding-left: 40px;
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 56px;
}
.timeline-item { position: relative; }
.timeline-marker {
  position: absolute;
  left: -46px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg-dark);
  box-shadow: 0 0 0 4px rgba(52, 211, 153, 0.12);
}
.timeline-period {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.timeline-company {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 2px;
}
.timeline-role {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.timeline-content p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.7;
}
.timeline-content ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-left: 0;
  list-style: none;
}
.timeline-content ul li {
  font-size: 0.88rem;
  color: var(--text-muted);
  padding-left: 20px;
  position: relative;
  line-height: 1.6;
}
.timeline-content ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.8rem;
}
.timeline-content em { color: var(--text); font-style: normal; font-weight: 500; }

/* ============================
   CONTACT
   ============================ */
#contact .contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.contact-text h2 { margin-bottom: 24px; }
.contact-text p { color: var(--text-muted); margin-bottom: 20px; line-height: 1.8; }
.contact-details { display: flex; flex-direction: column; gap: 16px; margin-top: 40px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 0.95rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}
a.contact-item:hover { color: var(--accent); }
.contact-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 1px; }

.contact-form-wrapper { position: relative; }
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.form-group { margin-bottom: 24px; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.95rem;
  transition: border-color var(--transition);
  outline: none;
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-faint); }
.form-group input:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-faint);
  margin-top: 14px;
}

.form-success {
  display: none;
  text-align: center;
  background: var(--bg-card);
  border: 1px solid rgba(52, 211, 153, 0.2);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
}
.form-success.visible { display: block; }
.success-icon {
  width: 56px;
  height: 56px;
  background: rgba(52, 211, 153, 0.08);
  border: 1px solid var(--accent);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 20px;
}
.form-success h3 { margin-bottom: 8px; }
.form-success p { color: var(--text-muted); font-size: 0.9rem; }

/* ============================
   FOOTER
   ============================ */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  background: var(--bg-dark);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 4px;
}
.footer-reg { font-size: 0.82rem; color: var(--text-faint); }
.footer-copy { font-size: 0.8rem; color: var(--text-faint); }

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 900px) {
  #about .about-grid { grid-template-columns: 1fr; gap: 40px; }
  #contact .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  section { padding: 64px 0; }
  .container { padding: 0 20px; }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(10, 10, 15, 0.97);
    backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a {
    display: block;
    padding: 14px 24px;
    font-size: 1rem;
  }
  .nav-cta { margin: 8px 24px; border-radius: var(--radius); }
  .nav-toggle { display: flex; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* Everything single-column on mobile */
  .services-grid { grid-template-columns: 1fr; }
  .service-card { padding: 28px 24px; }
  .about-aside { gap: 16px; }
  .aside-card { padding: 20px; }

  .hero-stats { gap: 20px; }
  .stat-divider { display: none; }
  .tech-categories { grid-template-columns: 1fr; }
  .timeline { padding-left: 28px; }
  .timeline-marker { left: -34px; }
  .section-header { margin-bottom: 40px; }
  .contact-form { padding: 24px; }
  .form-success { padding: 40px 24px; }
  .hero-scroll { display: none; }

  /* Let headings reflow naturally */
  h1 br, h2 br { display: none; }

  .hero-eyebrow { margin-bottom: 16px; }
  .hero-sub { font-size: 1rem; margin-bottom: 32px; }
  .hero-actions { flex-direction: column; gap: 12px; }
  .hero-actions .btn { text-align: center; justify-content: center; width: 100%; }
}