/* ============================================================
   Redwolf Electronics — style.css
   System fonts only. No external dependencies.
   ============================================================ */

/* ---- Reset & base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #0a0d12;
  color: #e8eaed;
  line-height: 1.6;
  font-size: 16px;
}
a             { color: inherit; text-decoration: none; }
ul            { list-style: none; }
img, svg      { display: block; max-width: 100%; }

/* ---- Variables ---- */
:root {
  --red:     #dc2626;
  --red2:    #ef4444;
  --bg:      #0a0d12;
  --bg2:     #0f1419;
  --card:    #131a22;
  --border:  #222c38;
  --text:    #e8eaed;
  --muted:   #8e9aab;
  --max:     1120px;
  --gap:     clamp(1rem, 4vw, 2rem);
  --py:      clamp(3.5rem, 7vw, 6rem);
}

/* ---- Layout ---- */
.container { max-width: var(--max); margin: 0 auto; padding: 0 var(--gap); }
.section    { padding: var(--py) 0; }
.section.alt { background: var(--bg2); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: .45rem;
  padding: .65rem 1.5rem; border-radius: 7px;
  font-size: .9rem; font-weight: 600; border: none; cursor: pointer;
  transition: .2s;
}
.btn-red   { background: var(--red);   color: #fff; }
.btn-red:hover  { background: var(--red2); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--red); color: var(--red); transform: translateY(-2px); }
.btn-white { background: #fff; color: var(--red); }
.btn-white:hover { opacity: .9; transform: translateY(-2px); }

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,13,18,.96);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.nav-inner {
  max-width: var(--max); margin: 0 auto; padding: .7rem var(--gap);
  display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap;
}
.nav-logo         { display: flex; align-items: center; gap: .6rem; flex-shrink: 0; }
.nav-logo img     { width: 30px; height: auto; }
.nav-logo-text    { line-height: 1.1; }
.nav-logo-text strong { font-size: .92rem; font-weight: 800; letter-spacing: .08em; display: block; }
.nav-logo-text small  { font-size: .52rem; letter-spacing: .18em; color: var(--muted); font-weight: 500; }
.nav-links        { display: flex; align-items: center; gap: .1rem; margin-left: auto; flex-wrap: wrap; }
.nav-links a      { padding: .38rem .75rem; border-radius: 6px; font-size: .875rem; color: var(--muted); transition: .15s; }
.nav-links a:hover { color: var(--text); background: var(--card); }
.nav-links .cta   { background: var(--red); color: #fff !important; margin-left: .35rem; }
.nav-links .cta:hover { background: var(--red2); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 92vh;
  display: flex; align-items: center;
  padding: 4rem var(--gap);
  position: relative; overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 55% 50% at 20% 50%, rgba(220,38,38,.07) 0%, transparent 60%),
    repeating-linear-gradient(0deg,   transparent, transparent 49px, rgba(255,255,255,.025) 50px),
    repeating-linear-gradient(90deg,  transparent, transparent 49px, rgba(255,255,255,.025) 50px);
}
.hero-inner {
  position: relative;
  max-width: var(--max);
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: center;
}
.hero-quote {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
}
.hero-quote-bar {
  background: rgba(255,255,255,.03);
  border-bottom: 1px solid var(--border);
  padding: .6rem 1rem;
  display: flex;
  gap: .45rem;
  align-items: center;
}
.hero-quote-body {
  padding: 1.5rem;
}
.hero-quote-body blockquote {
  font-family: monospace;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--text);
  border: none;
  margin: 0;
}
.hero-quote-body .cite {
  display: block;
  color: var(--muted);
  font-size: .75rem;
  font-family: monospace;
  margin-top: 1rem;
  padding-top: .875rem;
  border-top: 1px solid var(--border);
}
.hero-badge {
  display: inline-flex; align-items: center; gap: .5rem;
  border: 1px solid rgba(220,38,38,.35);
  color: var(--red2); padding: .32rem 1rem; border-radius: 100px;
  font-size: .78rem; font-weight: 600; letter-spacing: .07em;
  margin-bottom: 1.75rem;
}
.hero h1 {
  font-size: clamp(2.6rem, 7vw, 5.25rem); font-weight: 900;
  letter-spacing: -.025em; line-height: .92; margin-bottom: 1.25rem;
}
.hero h1 .brand { display: block; }
.hero h1 .sub   { display: block; font-size: .3em; letter-spacing: .28em; color: var(--red); margin-top: .5rem; }
.tagline { color: var(--muted); font-style: italic; margin-bottom: .6rem; }
.hero-desc { color: var(--muted); max-width: 500px; margin-bottom: 2rem; line-height: 1.75; }
.btn-row { display: flex; gap: .75rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.pills   { display: flex; flex-wrap: wrap; gap: .4rem; }
.pill {
  background: var(--card); border: 1px solid var(--border);
  color: var(--muted); padding: .25rem .8rem; border-radius: 100px;
  font-size: .76rem; font-family: monospace;
}

/* ============================================================
   SECTION HEADERS
   ============================================================ */
.sh               { margin-bottom: clamp(2rem, 5vw, 3.25rem); }
.sh.center        { text-align: center; }
.sh .label {
  display: inline-block; color: var(--red);
  font-size: .7rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  margin-bottom: .5rem;
}
.sh h2            { font-size: clamp(1.5rem, 3.5vw, 2.25rem); letter-spacing: -.02em; margin-bottom: .7rem; }
.sh p             { color: var(--muted); max-width: 560px; margin: 0 auto; line-height: 1.75; }

/* ============================================================
   SERVICE CARDS
   ============================================================ */
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 1.25rem; }
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 1.75rem; transition: .25s;
}
.card:hover { border-color: rgba(220,38,38,.4); transform: translateY(-3px); }
.card-icon  { font-size: 2rem; margin-bottom: 1rem; }
.card h3    { font-size: 1.05rem; margin-bottom: .5rem; }
.card p     { color: var(--muted); font-size: .875rem; line-height: 1.65; margin-bottom: 1rem; }
.card ul    { color: var(--muted); font-size: .84rem; }
.card ul li { padding: .25rem 0; border-bottom: 1px solid var(--border); }
.card ul li:last-child { border: none; }
.card ul li::before { content: '— '; color: var(--red); }
.card-link { display: inline-block; color: var(--red); font-size: .84rem; font-weight: 600; margin-top: 1rem; }
.card-link:hover { color: var(--red2); }

/* ============================================================
   TECHNOLOGY CARDS (5-card, 3-col grid)
   ============================================================ */
.tech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.tech-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 1.5rem; transition: .25s;
}
.tech-card:hover { transform: translateY(-3px); border-color: var(--border); }
.tech-head   { display: flex; align-items: center; gap: .875rem; margin-bottom: .875rem; }
.tech-badge  {
  width: 42px; height: 42px; border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  font-size: .82rem; font-weight: 800; font-family: monospace;
  flex-shrink: 0; letter-spacing: -.03em;
}
.tech-card h3 { font-size: .98rem; font-weight: 700; }
.tech-card p  { color: var(--muted); font-size: .84rem; line-height: 1.6; margin-bottom: .875rem; }
.tags         { display: flex; flex-wrap: wrap; gap: .3rem; }
.tag {
  background: rgba(255,255,255,.04); border: 1px solid var(--border);
  color: var(--muted); padding: .17rem .6rem; border-radius: 4px;
  font-size: .72rem; font-family: monospace;
}

/* ============================================================
   AI / ML
   ============================================================ */
.aiml-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.aiml-item   { display: flex; gap: 1rem; margin-bottom: 1.75rem; }
.aiml-item:last-child { margin-bottom: 0; }
.aiml-ico    {
  width: 40px; height: 40px; border-radius: 9px; flex-shrink: 0; margin-top: .1rem;
  background: rgba(124,58,237,.12); border: 1px solid rgba(124,58,237,.25);
  display: flex; align-items: center; justify-content: center; font-size: 1.1rem;
}
.aiml-item h3 { font-size: .94rem; font-weight: 700; margin-bottom: .3rem; }
.aiml-item p  { color: var(--muted); font-size: .84rem; line-height: 1.6; }

/* Vision pipeline widget */
.widget { background: var(--card); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.widget-bar {
  background: rgba(255,255,255,.03); border-bottom: 1px solid var(--border);
  padding: .6rem 1rem; display: flex; gap: .45rem; align-items: center;
}
.dot         { width: 9px; height: 9px; border-radius: 50%; }
.dot-r { background: #ff5f56; } .dot-y { background: #febc2e; } .dot-g { background: #28c840; }
.widget-file { font-size: .7rem; color: var(--muted); font-family: monospace; margin-left: auto; }
.widget-body { padding: 1.5rem; }
.flow        { display: flex; align-items: center; gap: .3rem; flex-wrap: wrap; margin-bottom: 1.25rem; }
.flow-step {
  background: rgba(255,255,255,.04); border: 1px solid var(--border);
  border-radius: 7px; padding: .5rem .75rem; text-align: center;
  font-size: .7rem; color: var(--muted); min-width: 62px;
}
.flow-step.on { border-color: rgba(124,58,237,.5); color: #a78bfa; background: rgba(124,58,237,.1); }
.flow-step span { display: block; font-size: .95rem; margin-bottom: .2rem; }
.flow-arr    { color: var(--border); font-size: .8rem; }
.metrics     {
  display: grid; grid-template-columns: repeat(3,1fr); gap: .75rem;
  background: rgba(255,255,255,.025); border: 1px solid var(--border);
  border-radius: 8px; padding: .875rem; margin-bottom: 1.1rem;
}
.metric       { text-align: center; }
.metric-val   { font-size: 1.3rem; font-weight: 800; font-family: monospace; display: block; line-height: 1; }
.metric-val sup { font-size: .6rem; font-weight: 500; color: var(--muted); }
.metric-lbl   { font-size: .65rem; color: var(--muted); text-transform: uppercase; letter-spacing: .07em; display: block; margin-top: .25rem; }
.platforms    { display: flex; flex-wrap: wrap; gap: .4rem; }
.plat {
  background: rgba(255,255,255,.04); border: 1px solid var(--border);
  border-radius: 6px; padding: .25rem .65rem; font-size: .74rem; color: var(--muted);
}

/* ============================================================
   DOCUMENTATION
   ============================================================ */
.doc-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 1.75rem; transition: .25s;
}
.doc-card:hover { border-color: rgba(8,145,178,.4); transform: translateY(-3px); }
.doc-icon  { font-size: 1.75rem; margin-bottom: 1rem; }
.doc-card h3  { font-size: 1.05rem; margin-bottom: .5rem; }
.doc-card p   { color: var(--muted); font-size: .875rem; line-height: 1.65; margin-bottom: 1rem; }
.doc-card ul  { color: var(--muted); font-size: .84rem; }
.doc-card ul li { padding: .25rem 0; border-bottom: 1px solid var(--border); }
.doc-card ul li:last-child { border: none; }
.doc-card ul li::before { content: '— '; color: #0891b2; }

/* ============================================================
   ABOUT
   ============================================================ */
.about-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem; align-items: center; }
.about-text .sh { margin-bottom: 1.25rem; }
.about-text .sh h2 { text-align: left; }
.about-text p  { color: var(--muted); line-height: 1.8; margin-bottom: 1rem; }
.stat-grid     { display: grid; grid-template-columns: 1fr 1fr; gap: .875rem; }
.stat {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 10px; padding: 1.1rem; transition: .2s;
}
.stat:hover { border-color: rgba(220,38,38,.3); }
.stat-num  { display: block; font-size: 1.25rem; font-weight: 800; }
.stat-lbl  { font-size: .76rem; color: var(--muted); }

/* ============================================================
   CTA BAND
   ============================================================ */
.cta-band {
  background: linear-gradient(135deg, rgba(220,38,38,.1) 0%, rgba(124,58,237,.07) 100%);
  border-top: 1px solid rgba(220,38,38,.2); border-bottom: 1px solid rgba(220,38,38,.2);
  padding: 4.5rem 0; text-align: center;
}
.cta-band h2 { font-size: clamp(1.35rem, 3vw, 2rem); margin-bottom: .75rem; }
.cta-band p  { color: var(--muted); max-width: 420px; margin: 0 auto 2rem; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { background: var(--bg2); border-top: 1px solid var(--border); padding: 3rem 0 1.5rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2.5rem; margin-bottom: 2.5rem; }
.footer-brand .nav-logo { margin-bottom: .875rem; }
.footer-brand p { color: var(--muted); font-size: .875rem; line-height: 1.7; max-width: 270px; }
.footer-col h4 {
  font-size: .72rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--muted); margin-bottom: .875rem;
}
.footer-col ul li { margin-bottom: .4rem; }
.footer-col ul a  { color: var(--muted); font-size: .875rem; transition: .15s; }
.footer-col ul a:hover { color: var(--text); }
.footer-bottom {
  border-top: 1px solid var(--border); padding-top: 1.5rem;
  text-align: center; color: var(--muted); font-size: .78rem;
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-hero {
  background: var(--bg2); border-bottom: 1px solid var(--border);
  padding: 6rem var(--gap) 4rem; text-align: center;
}
.contact-hero h1 { font-size: clamp(1.75rem, 4.5vw, 3rem); letter-spacing: -.02em; margin-bottom: .875rem; }
.contact-hero p  { color: var(--muted); max-width: 480px; margin: 0 auto; line-height: 1.75; }
.contact-body    { max-width: 780px; margin: 0 auto; padding: 4rem var(--gap); }
.mailto-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 2.5rem; text-align: center; margin-bottom: 2.5rem;
}
.mailto-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.mailto-card h2 { font-size: 1.3rem; margin-bottom: .5rem; }
.mailto-card p  { color: var(--muted); max-width: 400px; margin: 0 auto 1.75rem; font-size: .9rem; line-height: 1.75; }
.mailto-link    { font-size: 1.15rem; font-weight: 700; color: var(--red); word-break: break-all; }
.mailto-link:hover { color: var(--red2); text-decoration: underline; }
.contact-details { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; margin-bottom: 2.5rem; }
.detail-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 10px; padding: 1.25rem;
}
.detail-card .icon { font-size: 1.3rem; margin-bottom: .5rem; }
.detail-card h3  { font-size: .9rem; font-weight: 700; margin-bottom: .3rem; }
.detail-card p   { color: var(--muted); font-size: .84rem; line-height: 1.6; }
.expertise       { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 1.5rem; }
.expertise h3    {
  font-size: .72rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 1rem;
}
.tag-cloud       { display: flex; flex-wrap: wrap; gap: .4rem; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-quote { max-width: 480px; }
  .tech-grid  { grid-template-columns: repeat(2,1fr); }
  .tech-grid .tech-card:nth-child(4),
  .tech-grid .tech-card:nth-child(5) { grid-column: auto; margin: 0; }
  .aiml-layout  { grid-template-columns: 1fr; }
  .about-layout { grid-template-columns: 1fr; }
  .footer-grid  { grid-template-columns: 1fr 1fr; }
  .contact-details { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .tech-grid  { grid-template-columns: 1fr; }
  .stat-grid  { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .btn-row    { flex-direction: column; align-items: flex-start; }
  .nav-links  { justify-content: flex-start; padding-bottom: .5rem; }
}