/* ===================================================================
   Optimate CS Pty Ltd — main stylesheet
   =================================================================== */

:root{
  /* base palette */
  --bg:            #03060d;
  --bg-alt:        #050d19;
  --bg-alt-2:      #060f1c;
  --panel:         #0a1526;
  --panel-2:       #0c1a2d;
  --border:        rgba(103,163,217,0.16);
  --border-strong: rgba(103,163,217,0.28);

  /* brand cyan/blue */
  --cyan:          #22d3ee;
  --cyan-soft:     #7fe3f4;
  --blue:          #2b9be0;
  --blue-deep:     #0a4f86;
  --blue-grad:     linear-gradient(135deg,#3fc7f0 0%,#1f8fdb 55%,#0a63ad 100%);

  /* text */
  --text:          #eef4fb;
  --text-muted:    #a9bad0;
  --text-dim:      #728098;

  /* service icon accents */
  --icon-blue:      #29a8d8;
  --icon-cyan:      #22d9e9;
  --icon-purple:    #8b7ff0;
  --icon-green:     #2fd6ba;
  --icon-orange:    #e0a24a;

  /* industry icon accents */
  --ind-blue:   #4d8ff0;
  --ind-teal:   #23c2ab;
  --ind-pink:   #ef5da8;
  --ind-purple: #a889f5;
  --ind-rose:   #f2749a;
  --ind-orange: #f0a23f;
  --ind-indigo: #6d83e8;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;

  --shell-w: 1280px;
}

*, *::before, *::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; }
}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3{
  font-family:var(--font-display);
  color:#fff;
  line-height:1.15;
  margin:0 0 .5em;
  letter-spacing:-0.01em;
}

p{ margin:0 0 1em; }
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
button{ font:inherit; }
svg{ display:block; }

.skip-link{
  position:absolute; left:-999px; top:0;
  background:var(--cyan); color:#00222b; padding:10px 16px;
  border-radius:0 0 8px 0; z-index:999; font-weight:600;
}
.skip-link:focus{ left:0; }

:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:4px;
}

.shell{
  max-width:var(--shell-w);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- background texture (shared) ---------- */
body{
  background-image:
    radial-gradient(1100px 600px at 78% -8%, rgba(34,211,238,0.10), transparent 60%),
    radial-gradient(900px 500px at 10% 0%, rgba(43,155,224,0.08), transparent 55%);
  background-repeat:no-repeat;
}

/* ===================================================================
   Buttons
   =================================================================== */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--font-body); font-weight:600; font-size:0.95rem;
  padding:13px 22px; border-radius:9px;
  border:1px solid transparent; cursor:pointer;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
  white-space:nowrap;
}
.btn .icon-arrow{ width:16px; height:16px; transition:transform .15s ease; }
.btn:hover .icon-arrow{ transform:translateX(3px); }

.btn-primary{
  background:var(--blue-grad);
  color:#fff;
  box-shadow:0 8px 24px -8px rgba(43,155,224,0.55);
}
.btn-primary:hover{ transform:translateY(-1px); box-shadow:0 12px 28px -8px rgba(43,155,224,0.7); }
.btn-primary:active{ transform:translateY(0); }

.btn-outline{
  background:rgba(255,255,255,0.02);
  border-color:var(--border-strong);
  color:var(--text);
}
.btn-outline:hover{ border-color:var(--cyan); color:var(--cyan); background:rgba(34,211,238,0.06); }

.btn-sm{ padding:9px 16px; font-size:0.85rem; }

/* ===================================================================
   Header
   =================================================================== */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(3,6,13,0.82);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  display:flex; align-items:center; gap:20px;
  padding:14px 24px;
}
.brand{ display:flex; align-items:center; gap:12px; margin-right:auto; }
.brand-mark{ width:52px; height:52px; object-fit:contain; flex-shrink:0; }
.brand-text{ display:flex; flex-direction:column; line-height:1.25; }
.brand-name{ font-family:var(--font-display); font-weight:700; font-size:1.15rem; color:#fff; }
.brand-tagline{ font-size:0.66rem; letter-spacing:.12em; text-transform:uppercase; color:var(--cyan); font-weight:600; }

.main-nav{ display:flex; align-items:center; gap:32px; }
.main-nav a{
  font-size:0.92rem; font-weight:500; color:var(--text-muted);
  transition:color .15s ease; position:relative;
}
.main-nav a:hover{ color:#fff; }

.header-cta{ display:flex; }

.nav-toggle{
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:40px; height:40px; background:none; border:1px solid var(--border-strong);
  border-radius:8px; cursor:pointer; padding:0;
}
.nav-toggle span{ width:18px; height:2px; background:#fff; margin:0 auto; transition:transform .2s ease, opacity .2s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

.mobile-nav{
  display:none;
  flex-direction:column;
  gap:2px;
  padding:8px 24px 20px;
  border-top:1px solid var(--border);
  background:rgba(3,6,13,0.98);
}
.mobile-nav a{
  padding:12px 4px; font-size:0.98rem; color:var(--text-muted);
  border-bottom:1px solid var(--border);
}
.mobile-nav .btn{ margin-top:14px; justify-content:center; }
.mobile-nav.open{ display:flex; }

/* ===================================================================
   Eyebrow / section labels
   =================================================================== */
.eyebrow{
  font-size:0.78rem; font-weight:700; letter-spacing:.16em; text-transform:uppercase;
  color:var(--cyan); margin-bottom:14px;
  display:flex; align-items:center; gap:14px;
}
.eyebrow.center{ justify-content:center; }
.eyebrow.center::before, .eyebrow.center::after{
  content:''; height:1px; width:44px;
  background:linear-gradient(90deg, transparent, var(--border-strong));
}
.eyebrow.center::after{ background:linear-gradient(90deg, var(--border-strong), transparent); }

/* ===================================================================
   Hero
   =================================================================== */
.hero{ position:relative; overflow:hidden; padding:72px 0 20px; }
.hero-bg{
  position:absolute; inset:0; z-index:0; pointer-events:none;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(900px 500px at 70% 20%, #000 10%, transparent 75%);
  mask-image:radial-gradient(900px 500px at 70% 20%, #000 10%, transparent 75%);
  opacity:0.5;
}
.hero-inner{
  position:relative; z-index:1;
  display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:center;
}
.hero-tagline{
  font-family:var(--font-body);
  text-transform:uppercase;
  letter-spacing:.1em;
  color:var(--cyan);
  font-weight:700;
  font-size:clamp(1.9rem, 3.6vw, 2.7rem);
  line-height:1.25;
  margin-bottom:18px;
}
.cyan-text{ color:var(--cyan); }
.hero-sub{ color:var(--text-muted); font-size:1.02rem; max-width:56ch; margin-bottom:30px; }

.trust-badges{
  list-style:none; margin:0; padding:22px 0 0;
  display:grid; grid-template-columns:repeat(4,1fr); gap:0;
  border-top:1px solid var(--border);
}
.trust-badges li{
  display:flex; align-items:flex-start; gap:10px;
  padding:18px 16px 0 0;
  border-right:1px solid var(--border);
  font-size:0.8rem; color:var(--text-muted); font-weight:500;
}
.trust-badges li:last-child{ border-right:none; padding-right:0; }
.badge-icon{ width:24px; height:24px; color:var(--cyan); flex-shrink:0; }

.hero-art{ position:relative; display:flex; flex-direction:column; align-items:center; justify-content:center; min-height:340px; }
.hero-art-caption{
  position:relative; z-index:1;
  text-align:center; max-width:560px;
  font-family:var(--font-display); font-weight:600;
  font-size:clamp(1.3rem, 2.3vw, 1.65rem); line-height:1.35; color:#fff;
  white-space:normal;
  margin:0 0 24px;
}
.hero-art-caption .cyan-text{ white-space:nowrap; }
.hero-art-visual{ position:relative; display:flex; align-items:center; justify-content:center; width:100%; }
.hero-art-glow{
  position:absolute; top:50%; left:50%; transform:translate(-50%,-50%);
  width:70%; aspect-ratio:1; border-radius:50%;
  background:radial-gradient(circle, rgba(34,211,238,0.22), transparent 70%);
  filter:blur(6px);
}
.hero-mark{ position:relative; width:100%; max-width:420px; }

/* ===================================================================
   Sections general
   =================================================================== */
.section{ padding:76px 0; position:relative; }
.hero + .section{ padding-top:32px; }
.section:nth-of-type(odd){ background:var(--bg-alt); }

/* ---------- service cards ---------- */
.card-grid{
  display:grid; grid-template-columns:repeat(5,1fr); gap:18px;
}
.service-card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:26px 22px;
  transition:transform .18s ease, border-color .18s ease, background .18s ease;
}
.service-card:hover{
  transform:translateY(-4px);
  border-color:var(--border-strong);
  background:var(--panel-2);
}
.service-icon{
  width:52px; height:52px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  margin-bottom:18px; border:1px solid currentColor;
  background:color-mix(in srgb, currentColor 12%, transparent);
}
.service-icon svg{ width:26px; height:26px; }
.icon-blue{ color:var(--icon-blue); }
.icon-cyan{ color:var(--icon-cyan); }
.icon-purple{ color:var(--icon-purple); }
.icon-green{ color:var(--icon-green); }
.icon-orange{ color:var(--icon-orange); }

.service-card h3{ font-size:1rem; margin-bottom:8px; }
.service-card p{ font-size:0.88rem; color:var(--text-muted); margin:0; }

/* ---------- about / experience + industries ---------- */
.about-grid{
  display:grid; grid-template-columns:1.05fr 0.95fr; gap:56px; align-items:start;
}
.about-copy h2{ font-size:clamp(1.5rem,2.4vw,1.9rem); margin-bottom:16px; }
.about-copy > p{ color:var(--text-muted); max-width:56ch; margin-bottom:28px; }

.value-list{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:18px; }
.value-list li{ display:flex; align-items:flex-start; gap:14px; }
.value-icon{ width:24px; height:24px; color:var(--cyan); flex-shrink:0; margin-top:2px; }
.value-list strong{ display:block; font-size:0.98rem; color:#fff; margin-bottom:2px; }
.value-list span{ font-size:0.87rem; color:var(--text-muted); }

.industry-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:14px;
}
.industry-card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:20px 14px;
  display:flex; flex-direction:column; align-items:center; text-align:center; gap:12px;
  transition:transform .18s ease, border-color .18s ease;
}
.industry-card:hover{ transform:translateY(-3px); border-color:var(--border-strong); }
.industry-icon{ width:28px; height:28px; }
.industry-card span{ font-size:0.76rem; font-weight:600; color:var(--text-muted); letter-spacing:.01em; }
.industry-card-wide{ grid-column:span 1; }

.color-blue{ color:var(--ind-blue); }
.color-teal{ color:var(--ind-teal); }
.color-pink{ color:var(--ind-pink); }
.color-purple{ color:var(--ind-purple); }
.color-rose{ color:var(--ind-rose); }
.color-orange{ color:var(--ind-orange); }
.color-indigo{ color:var(--ind-indigo); }

/* ===================================================================
   CTA banner
   =================================================================== */
.cta-banner{
  background:linear-gradient(120deg, var(--panel-2), var(--bg-alt-2));
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  padding:44px 0;
}
.cta-banner-inner{
  display:flex; align-items:center; gap:28px; flex-wrap:wrap;
}
.cta-banner-heading{ display:flex; align-items:center; gap:14px; flex:0 0 auto; }
.cta-star{ width:26px; height:26px; color:var(--cyan); flex-shrink:0; }
.cta-banner h2{ font-size:1.3rem; margin:0; white-space:nowrap; }
.cta-banner p{ flex:1 1 320px; color:var(--text-muted); margin:0; font-size:0.92rem; }
.cta-banner .btn{ flex:0 0 auto; }

/* ===================================================================
   Contact
   =================================================================== */
.contact-grid-solo{
  max-width:560px; margin:0 auto; text-align:center;
}
.contact-grid-solo .contact-lead{ margin-left:auto; margin-right:auto; }
.contact-lead{ color:var(--text-muted); max-width:42ch; margin-bottom:26px; }
.contact-details{
  list-style:none; margin:0 0 32px; padding:0;
  display:flex; flex-direction:column; gap:18px; text-align:left;
  max-width:340px; margin-left:auto; margin-right:auto;
}
.contact-details li{ display:flex; align-items:flex-start; gap:14px; font-size:0.92rem; }
.contact-details svg{ width:22px; height:22px; color:var(--cyan); flex-shrink:0; margin-top:1px; }
.contact-details a{ color:var(--text); transition:color .15s ease; }
.contact-details a:hover{ color:var(--cyan); }
.contact-details small{ color:var(--text-dim); font-weight:400; }
.contact-open-btn{ margin:0 auto; }

.contact-form{
  position:relative;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:28px;
  display:flex; flex-direction:column; gap:16px;
}
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.field{ display:flex; flex-direction:column; gap:7px; }
.field label{ font-size:0.8rem; font-weight:600; color:var(--text-muted); }
.field input, .field textarea{
  background:var(--bg-alt);
  border:1px solid var(--border-strong);
  border-radius:8px;
  padding:11px 13px;
  color:#fff;
  font-family:var(--font-body);
  font-size:0.92rem;
  resize:vertical;
}
.field input:focus, .field textarea:focus{
  outline:none; border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(34,211,238,0.15);
}
.field input::placeholder, .field textarea::placeholder{ color:var(--text-dim); }
.form-note{ font-size:0.78rem; color:var(--text-dim); margin:0; transition:color .15s ease; }
.form-note strong{ color:var(--text-muted); }
.form-note.success{ color:var(--cyan); }
.form-note.error{ color:#f87171; }
.contact-form .btn-primary{ align-self:flex-start; }

/* ===================================================================
   Mail provider chooser (Gmail / Outlook.com / default app)
   =================================================================== */
.mail-chooser{
  position:fixed;
  z-index:400;
  min-width:220px;
  background:var(--panel-2);
  border:1px solid var(--border-strong);
  border-radius:var(--radius-sm);
  box-shadow:0 16px 40px -12px rgba(0,0,0,0.6);
  padding:6px;
  display:flex; flex-direction:column; gap:2px;
}
.mail-chooser-label{
  font-size:0.7rem; font-weight:700; letter-spacing:.08em; text-transform:uppercase;
  color:var(--text-dim); padding:8px 10px 4px;
}
.mail-chooser-option{
  display:flex; align-items:center; gap:10px;
  width:100%; text-align:left;
  background:none; border:none; cursor:pointer;
  padding:9px 10px; border-radius:7px;
  color:var(--text); font-family:var(--font-body); font-size:0.88rem; font-weight:500;
  text-decoration:none;
}
.mail-chooser-option:hover, .mail-chooser-option:focus-visible{
  background:rgba(34,211,238,0.1); color:#fff;
}
.mail-chooser-option svg{ width:18px; height:18px; color:var(--cyan); flex-shrink:0; }

/* ===================================================================
   Footer
   =================================================================== */
.site-footer{
  border-top:1px solid var(--border);
  background:var(--bg);
  padding:36px 0;
}
.footer-inner{
  display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap;
}
.footer-nav{ display:flex; gap:26px; flex-wrap:wrap; }
.footer-nav a{ font-size:0.85rem; color:var(--text-muted); transition:color .15s ease; }
.footer-nav a:hover{ color:var(--cyan); }
.footer-copy{ font-size:0.78rem; color:var(--text-dim); margin:0; white-space:nowrap; }

/* ===================================================================
   Contact modal
   =================================================================== */
.modal-overlay{
  position:fixed; inset:0; z-index:300;
  background:rgba(2,5,11,0.72);
  backdrop-filter:blur(3px); -webkit-backdrop-filter:blur(3px);
  display:flex; align-items:center; justify-content:center;
  padding:24px;
  animation:modal-fade-in .18s ease;
}
.modal-overlay[hidden]{ display:none; }
.modal{
  position:relative;
  width:100%; max-width:600px;
  max-height:90vh; overflow-y:auto;
  background:var(--panel-2);
  border:1px solid var(--border-strong);
  border-radius:var(--radius-lg);
  padding:36px;
  box-shadow:0 24px 60px -12px rgba(0,0,0,0.65);
  animation:modal-pop-in .2s ease;
}
.modal-close{
  position:absolute; top:16px; right:16px;
  width:34px; height:34px;
  display:flex; align-items:center; justify-content:center;
  background:rgba(255,255,255,0.04);
  border:1px solid var(--border-strong);
  border-radius:50%;
  color:var(--text-muted);
  cursor:pointer;
  transition:color .15s ease, border-color .15s ease, background .15s ease;
}
.modal-close:hover{ color:#fff; border-color:var(--cyan); background:rgba(34,211,238,0.08); }
.modal-close svg{ width:16px; height:16px; }
.modal-lead{ color:var(--text-muted); font-size:0.92rem; max-width:44ch; margin:0 0 24px; }
.modal-lead a{ color:var(--cyan); }
.modal-lead a:hover{ text-decoration:underline; }
.modal .contact-form{ padding:0; border:none; background:none; }

@keyframes modal-fade-in{ from{ opacity:0; } to{ opacity:1; } }
@keyframes modal-pop-in{ from{ opacity:0; transform:translateY(10px) scale(0.98); } to{ opacity:1; transform:translateY(0) scale(1); } }
@media (prefers-reduced-motion: reduce){
  .modal-overlay, .modal{ animation:none; }
}

/* ===================================================================
   Responsive
   =================================================================== */
@media (max-width: 1080px){
  .card-grid{ grid-template-columns:repeat(3,1fr); }
  .industry-grid{ grid-template-columns:repeat(4,1fr); }
}

@media (max-width: 900px){
  .main-nav, .header-cta{ display:none; }
  .nav-toggle{ display:flex; }

  .hero-inner{ grid-template-columns:1fr; }
  .hero-art{ order:-1; min-height:220px; }
  .hero-mark{ max-width:260px; }
  .hero-art-caption{ font-size:1.2rem; max-width:380px; }
  .hero{ padding:40px 0 40px; }

  .about-grid{ grid-template-columns:1fr; gap:44px; }
  .contact-grid-solo{ padding:0 4px; }
  .modal{ padding:24px 20px; }

  .cta-banner-inner{ flex-direction:column; align-items:flex-start; text-align:left; }
  .cta-banner h2{ white-space:normal; }

  .footer-inner{ flex-direction:column; align-items:flex-start; }
}

@media (max-width: 640px){
  .shell{ padding:0 18px; }
  .card-grid{ grid-template-columns:1fr 1fr; }
  .industry-grid{ grid-template-columns:1fr 1fr; }
  .trust-badges{ grid-template-columns:repeat(2,1fr); row-gap:16px; }
  .trust-badges li{ border-right:none; padding-right:0; }
  .trust-badges li:nth-child(odd){ border-right:1px solid var(--border); padding-right:16px; }
  .form-row{ grid-template-columns:1fr; }
  .cta-banner-heading{ flex-wrap:wrap; }
}

@media (max-width: 420px){
  .card-grid{ grid-template-columns:1fr; }
  .industry-grid{ grid-template-columns:1fr 1fr; }
  .brand-name{ font-size:1rem; }
}