/* AI-VA — Australian AI Voice Agents
   Design system. Distinct from AI Integration: cyan-teal primary, coral accent,
   voice-waveform motif throughout. Same Inter typography for premium feel. */

:root{
  /* Brand */
  --primary:#06b6d4;          /* electric cyan — voice-tech */
  --primary-bright:#22d3ee;
  --primary-deep:#0891b2;
  --accent:#ff5a36;           /* warm coral — waveform highlights */
  --accent-soft:#ffb199;

  /* Neutrals */
  --ink:#0a0f12;
  --body:#1f2226;
  --charcoal:#3a4248;
  --mute:#5a6873;
  --stone:#8d969e;
  --faint:#c9d4d9;

  /* Surfaces */
  --on-dark:#ffffff;
  --on-dark-mute:rgba(255,255,255,0.72);
  --canvas-light:#ffffff;
  --canvas-dark:#0a0f12;       /* not pure black — deep teal-black */
  --surface-soft:#f0f7f9;      /* cool soft surface */
  --surface-elevated:#13191d;
  --surface-deep:#06090b;
  --hairline-light:#dde6ea;
  --hairline-dark:rgba(255,255,255,0.10);
  --divider-soft:rgba(255,255,255,0.06);

  --ease:cubic-bezier(.22,.61,.36,1);
  --display-font:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  --body-font:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--body-font);background:var(--canvas-light);color:var(--ink);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px;line-height:1.5;letter-spacing:0.24px;overflow-x:hidden}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
a{color:var(--primary)}
img{max-width:100%;height:auto;display:block}

/* ANIMATIONS */
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes dotPulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.4);opacity:.5}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@keyframes gradientShift{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
@keyframes ping{0%{transform:scale(.9);opacity:.8}100%{transform:scale(1.6);opacity:0}}
@keyframes waveform-pulse{0%,100%{height:14%}50%{height:78%}}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s} .reveal.d2{transition-delay:.16s} .reveal.d3{transition-delay:.24s} .reveal.d4{transition-delay:.32s}

/* NAV */
.nav{background:rgba(10,15,18,0.88);height:64px;position:sticky;top:0;z-index:100;border-bottom:1px solid var(--hairline-dark);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 24px;height:100%;display:flex;align-items:center;justify-content:space-between}
.logo{color:var(--on-dark);font-weight:600;font-size:18px;text-decoration:none;letter-spacing:-0.3px;display:flex;align-items:center;gap:10px}
.logo-mark{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-bright) 100%);display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:11px;font-weight:700;box-shadow:0 4px 16px rgba(6,182,212,0.45);transition:transform .3s var(--ease);letter-spacing:-0.3px}
.logo:hover .logo-mark{transform:rotate(-8deg) scale(1.05)}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{color:var(--on-dark-mute);text-decoration:none;font-size:15px;font-weight:500;position:relative;transition:color .2s var(--ease)}
.nav-links a::after{content:"";position:absolute;bottom:-6px;left:0;right:0;height:2px;background:var(--primary-bright);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.nav-links a:hover{color:var(--on-dark)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--on-dark)}
.nav-right{display:flex;gap:16px;align-items:center}
.nav-phone{color:var(--on-dark);text-decoration:none;font-size:15px;font-weight:600;display:flex;align-items:center;gap:8px;transition:color .2s var(--ease)}
.nav-phone:hover{color:var(--primary-bright)}
.nav-phone svg{width:18px;height:18px;fill:currentColor}
.nav-cta{background:var(--primary);color:#fff;padding:10px 22px;border-radius:9999px;font-size:15px;font-weight:600;text-decoration:none;transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(6,182,212,0.4)}
@media(max-width:900px){.nav-mobile-hide{display:none}}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;height:52px;border-radius:9999px;font-size:16px;font-weight:600;letter-spacing:0.24px;text-decoration:none;cursor:pointer;border:none;transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(0,0,0,0.15)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{box-shadow:0 10px 30px rgba(6,182,212,0.4);background:var(--primary-bright)}
.btn-dark{background:var(--canvas-dark);color:var(--on-dark)}
.btn-light{background:#fff;color:var(--ink)}
.btn-outline-dark{background:transparent;color:var(--on-dark);border:1px solid rgba(255,255,255,0.4)}
.btn-outline-dark:hover{background:rgba(255,255,255,0.08);border-color:var(--on-dark)}
.btn-outline-light{background:transparent;color:var(--ink);border:1px solid var(--ink)}

/* PAGE HERO (subpages) */
.page-hero{background:var(--canvas-dark);color:var(--on-dark);padding:120px 0 100px;position:relative;overflow:hidden}
.page-hero::before,.page-hero::after{content:"";position:absolute;border-radius:50%;filter:blur(80px);pointer-events:none}
.page-hero::before{top:-200px;right:-100px;width:600px;height:600px;background:radial-gradient(circle,rgba(6,182,212,0.45) 0%,transparent 70%);animation:float 8s ease-in-out infinite}
.page-hero::after{bottom:-150px;left:-100px;width:500px;height:500px;background:radial-gradient(circle,rgba(255,90,54,0.25) 0%,transparent 70%);animation:float 10s ease-in-out infinite reverse}
.hero-inner{position:relative;z-index:1;max-width:880px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.12);color:var(--on-dark);padding:6px 14px;border-radius:9999px;font-size:13px;font-weight:600;margin-bottom:28px;letter-spacing:0.4px}
.eyebrow .dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent);animation:dotPulse 2s infinite}
h1.page-title{font-family:var(--display-font);font-size:clamp(40px,7vw,84px);font-weight:600;line-height:1.0;letter-spacing:-0.04em;margin-bottom:28px}
.page-sub{font-size:20px;line-height:1.5;color:var(--on-dark-mute);max-width:640px;font-weight:400}

/* SECTIONS */
section{padding:88px 0}
.section-light{background:var(--canvas-light);color:var(--ink)}
.section-soft{background:var(--surface-soft);color:var(--ink)}
.section-dark{background:var(--canvas-dark);color:var(--on-dark)}
h2.section-title{font-family:var(--display-font);font-size:clamp(32px,4.5vw,52px);font-weight:600;line-height:1.1;letter-spacing:-0.03em;margin-bottom:20px;max-width:780px}
.section-sub{font-size:18px;line-height:1.56;color:var(--mute);max-width:680px;margin-bottom:48px}
.section-dark .section-sub{color:var(--on-dark-mute)}

/* CTA BAND */
.cta-band{background:var(--canvas-dark);color:var(--on-dark);padding:120px 0;text-align:center;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at center,rgba(6,182,212,0.25) 0%,transparent 60%);pointer-events:none}
.cta-band .container{position:relative;z-index:1}
.cta-band h2{font-family:var(--display-font);font-size:clamp(36px,5vw,64px);font-weight:600;line-height:1.05;letter-spacing:-0.03em;margin-bottom:24px;max-width:760px;margin-left:auto;margin-right:auto}
.cta-band p{font-size:18px;color:var(--on-dark-mute);max-width:560px;margin:0 auto 32px}
.cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* FOOTER */
footer{background:var(--canvas-dark);color:var(--on-dark-mute);padding:80px 0 40px;border-top:1px solid var(--hairline-dark)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:64px}
@media(max-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
.footer-brand{color:var(--on-dark);margin-bottom:16px}
.footer-tag{font-size:14px;color:var(--on-dark-mute);max-width:280px;margin-bottom:20px}
.footer-phone{display:inline-flex;align-items:center;gap:8px;color:#fff;font-weight:600;text-decoration:none;font-size:16px}
.footer-phone:hover{color:var(--primary-bright)}
.footer-phone svg{width:18px;height:18px;fill:currentColor}
.footer-col h5{color:var(--on-dark);font-size:14px;font-weight:600;margin-bottom:16px;letter-spacing:0.3px}
.footer-col a{display:block;color:var(--on-dark-mute);text-decoration:none;font-size:14px;padding:6px 0;transition:color .2s var(--ease),padding-left .2s var(--ease)}
.footer-col a:hover{color:var(--on-dark);padding-left:4px}
.footer-bottom{border-top:1px solid var(--divider-soft);padding-top:32px;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px}

/* FLOATING CALL */
.floating-call{position:fixed;bottom:24px;right:24px;width:60px;height:60px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-bright));color:#fff;text-decoration:none;display:flex;align-items:center;justify-content:center;box-shadow:0 12px 40px rgba(6,182,212,0.5);z-index:99;transition:transform .3s var(--ease)}
.floating-call::before{content:"";position:absolute;inset:-8px;border-radius:50%;border:2px solid var(--primary-bright);opacity:0;animation:ping 2s ease-out infinite}
.floating-call:hover{transform:scale(1.1) rotate(-8deg)}
.floating-call svg{width:26px;height:26px;fill:currentColor}

/* WAVEFORM VISUAL (signature motif) */
.waveform{display:inline-flex;align-items:end;gap:3px;height:24px}
.waveform span{display:block;width:3px;background:var(--primary-bright);border-radius:2px;animation:waveform-pulse 1.2s ease-in-out infinite}
.waveform span:nth-child(1){animation-delay:0s}
.waveform span:nth-child(2){animation-delay:.1s}
.waveform span:nth-child(3){animation-delay:.2s}
.waveform span:nth-child(4){animation-delay:.3s}
.waveform span:nth-child(5){animation-delay:.15s}
.waveform span:nth-child(6){animation-delay:.05s}
.waveform span:nth-child(7){animation-delay:.25s}