/* =========================================================
   pro2type — "Signal & Volt" design system
   Tokens ported 1:1 from design/UI mockups request/_ds/…/tokens
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  /* ---- palette ---- */
  --paper-000:#F7F8FA;
  --paper-050:#EEF1F5;
  --paper-100:#FFFFFF;
  --ink-950:#0E1116;
  --ink-700:#4B5563;
  --ink-400:#8A94A3;
  --line-100:#E3E7ED;
  --line-300:#CBD2DC;
  --signal-500:#3457FF;
  --signal-600:#1E3ACC;
  --signal-tint:#E8ECFF;
  --volt-500:#9FE838;
  --volt-600:#79B822;
  --volt-tint:#F1FCDD;
  --circuit-500:#12B3A8;
  --circuit-600:#0C8C83;
  --circuit-tint:#DEF6F3;
  --ember-500:#FF7A29;
  --ember-600:#DB5E14;

  /* ---- semantic aliases ---- */
  --bg:var(--paper-000);
  --bg-elevated:var(--paper-050);
  --bg-card:var(--paper-100);
  --border:var(--line-100);
  --border-strong:var(--line-300);
  --text:var(--ink-950);
  --text-dim:var(--ink-700);
  --text-faint:var(--ink-400);

  --accent-primary:var(--signal-500);
  --accent-primary-dim:var(--signal-600);
  --accent-primary-tint:var(--signal-tint);
  --accent-secondary:#4A7A0F; /* darkened from volt-600 for AA text contrast on paper bg */
  --accent-secondary-tint:var(--volt-tint);
  --accent-cool:#0A6E66; /* darkened from circuit-500 for AA text contrast on paper bg */
  --accent-cool-tint:var(--circuit-tint);
  --accent-warm:var(--ember-500);

  /* ---- gradients ---- */
  --gradient-signal-to-volt:linear-gradient(90deg,#3457FF,#12B3A8,#9FE838);
  --gradient-dark:linear-gradient(135deg, #0E1116 0%, #142057 100%);
  --gradient-hero-wash:radial-gradient(680px 420px at 12% -8%, rgba(52,87,255,0.09), transparent 60%), radial-gradient(560px 360px at 100% 0%, rgba(159,232,56,0.12), transparent 60%);

  /* ---- type ---- */
  --font-display:'Space Grotesk', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'IBM Plex Mono', ui-monospace, monospace;
  --tracking-tight:-0.01em;
  --tracking-label:0.06em;
  --tracking-eyebrow:0.14em;
  --leading-body:1.55;
  --leading-tight:1.08;

  /* ---- spacing / shape ---- */
  --content-max:1120px;
  --radius:0px;
  --radius-sm:0px;
  --shadow-card:0 1px 2px rgba(14,17,22,0.05), 0 10px 28px rgba(14,17,22,0.07);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--gradient-hero-wash), var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  line-height:var(--leading-body);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{font-family:var(--font-display);font-weight:600;letter-spacing:var(--tracking-tight);margin:0;}
p{margin:0;}
a{color:var(--accent-primary-dim);text-decoration:none;}
a:hover{text-decoration:underline;}
img{max-width:100%;display:block;}

.wrap{max-width:var(--content-max);margin:0 auto;padding:0 40px;}

.eyebrow{
  font-family:var(--font-mono);
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:var(--tracking-eyebrow);
  color:var(--accent-cool);
  margin-bottom:12px;
}
.eyebrow--volt{color:var(--volt-500);}

/* =========================================================
   Buttons
   ========================================================= */
.btn{
  font-family:var(--font-mono);
  font-size:11px;
  padding:13px 24px;
  text-transform:uppercase;
  letter-spacing:0.04em;
  border-radius:var(--radius);
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  gap:8px;
  border:1px solid transparent;
  transition:background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  white-space:nowrap;
  text-decoration:none !important;
}
/* .btn-sm / .btn-md / .btn-lg: kept in markup for semantic sizing hooks,
   but every button now shares one font-size + padding standard (colors vary). */
.btn-primary{background:var(--volt-500);color:var(--ink-950);}
.btn-primary:hover{background:var(--volt-600);color:var(--ink-950);}
.btn-volt{background:var(--volt-500);color:var(--ink-950);}
.btn-volt:hover{background:var(--volt-600);color:var(--ink-950);}
.btn-secondary{background:transparent;color:var(--accent-secondary);border-color:var(--accent-secondary);}
.btn-secondary:hover{background:var(--accent-secondary-tint);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border-strong);}
.btn-ghost:hover{border-color:var(--text-dim);}
.btn-ghost-dark{background:transparent;color:#fff;border-color:rgba(255,255,255,0.5);}
.btn-ghost-dark:hover{border-color:#fff;}

/* =========================================================
   Nav
   ========================================================= */
.site-nav{
  position:fixed;top:0;left:0;right:0;z-index:40;
  background:rgba(247,248,250,0.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.site-nav__inner{
  position:relative;
  max-width:var(--content-max);margin:0 auto;padding:14px 40px;
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;column-gap:24px;
}
.site-nav__logo{display:flex;align-items:center;text-decoration:none;line-height:0;flex-shrink:0;}
.site-nav__menu{display:contents;}
.site-nav__links{display:flex;align-items:center;justify-self:center;gap:2px;font-family:var(--font-mono);font-size:12.5px;letter-spacing:0.04em;}
.site-nav__links a{padding:9px 16px;text-decoration:none;color:#4B5563;font-weight:400;white-space:nowrap;}
.site-nav__links a:hover{color:var(--text);}
.site-nav__links a.is-active{color:#fff;background:#3457FF;font-weight:600;}
.site-nav__links a.is-active:hover{color:#fff;}

/* Hamburger toggle — hidden on desktop, shown under the nav-collapse breakpoint */
.site-nav__toggle{
  display:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;
  width:36px;height:36px;padding:0;background:none;border:none;cursor:pointer;flex-shrink:0;
}
.site-nav__toggle-bar{display:block;width:20px;height:2px;background:var(--text);transition:transform 0.2s ease, opacity 0.2s ease;}
.site-nav.is-open .site-nav__toggle-bar:nth-child(1){transform:translateY(7px) rotate(45deg);}
.site-nav.is-open .site-nav__toggle-bar:nth-child(2){opacity:0;}
.site-nav.is-open .site-nav__toggle-bar:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

@media (max-width:860px){
  .site-nav__inner{display:flex;justify-content:space-between;}
  .site-nav__toggle{display:flex;}
  .site-nav__menu{
    display:flex;
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--paper-000);border-bottom:1px solid var(--border);
    max-height:0;overflow:hidden;opacity:0;
    transition:max-height 0.25s ease, opacity 0.2s ease;
  }
  .site-nav.is-open .site-nav__menu{max-height:420px;opacity:1;overflow-y:auto;}
  .site-nav__links{justify-self:auto;flex-direction:column;align-items:stretch;gap:0;padding:8px 20px 4px;}
  .site-nav__links a{padding:13px 4px;border-bottom:1px solid var(--border);}
  .site-nav__menu .btn{margin:16px 20px 22px;justify-content:center;}
}

/* =========================================================
   Hero sections
   ========================================================= */
.hero-dark{
  position:relative;min-height:600px;display:flex;align-items:center;overflow:hidden;
  background:var(--ink-950);margin-top:80px;
}
.hero-dark__media{
  position:absolute;inset:0;width:100%;height:100%;z-index:0;
  object-fit:cover;object-position:center;
}
.hero-dark__scrim{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg, rgba(14,17,22,1) 0%, rgba(14,17,22,1) 40%, transparent 95%);
}
.hero-dark__content{position:relative;z-index:2;padding:100px 40px;width:100%;}
.hero-dark h1{font-size:54px;line-height:1.05;margin:0;max-width:560px;color:#fff;}
.hero-dark__gradient-text{
  background:var(--gradient-signal-to-volt);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-dark p{font-size:17px;color:rgba(255,255,255,0.82);max-width:480px;margin:22px 0 0;}
.hero-dark__actions{display:flex;gap:16px;margin-top:36px;flex-wrap:wrap;}

.hero-light{
  background:var(--gradient-hero-wash), var(--bg);
  padding:72px 0 56px;margin-top:80px;
}
.hero-light h1{font-size:44px;line-height:1.08;margin:0;max-width:680px;}
.hero-light p{font-size:15.5px;color:var(--text-dim);margin-top:14px;max-width:600px;}
.hero-light__back{font-family:var(--font-mono);font-size:11.5px;text-transform:uppercase;letter-spacing:0.08em;}
.hero-light__meta{display:flex;gap:32px;margin-top:28px;font-family:var(--font-mono);font-size:11.5px;text-transform:uppercase;letter-spacing:0.06em;color:var(--text-faint);flex-wrap:wrap;}
.hero-light__meta div div{color:var(--text-dim);margin-bottom:4px;}

/* =========================================================
   Cards
   ========================================================= */
.grid{display:grid;gap:20px;}
.grid-2{grid-template-columns:1fr 1fr;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-5{grid-template-columns:repeat(5,1fr);}

.card{
  display:block;background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:22px 24px;position:relative;
  box-shadow:var(--shadow-card);text-decoration:none;color:inherit;
}
.card__icon{width:26px;height:26px;color:var(--accent-secondary);margin-bottom:14px;}
.card__icon svg{width:100%;height:100%;display:block;}
.card__tag-row{display:flex;align-items:center;gap:8px;}
.card__dot{width:8px;height:8px;border-radius:50%;border:2px solid var(--accent-secondary);flex-shrink:0;}
.card__tag{
  font-family:var(--font-mono);font-size:10.5px;text-transform:uppercase;
  letter-spacing:var(--tracking-label);color:var(--text-faint);
}
.card h3{font-size:17px;margin:8px 0;}
.card p{font-size:13.8px;color:var(--text-dim);margin:0;}

/* =========================================================
   Callout
   ========================================================= */
.callout{
  border:1px solid var(--accent-secondary);
  background:rgba(159,232,56,0.08);
  border-radius:var(--radius);padding:16px 20px;font-size:13px;color:var(--text-dim);
  display:flex;gap:12px;margin:24px 0;
}
.callout__icon{color:var(--accent-secondary);font-size:15px;flex-shrink:0;}

/* =========================================================
   Feature list (case detail "What shipped")
   ========================================================= */
.feature-group .eyebrow{margin-bottom:10px;}
.feature-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px;}
.feature-list li{
  position:relative;padding-left:16px;font-size:13.5px;line-height:1.5;color:var(--text-dim);
}
.feature-list li::before{
  content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:50%;
  background:var(--accent-cool);
}

/* =========================================================
   Stat strip
   ========================================================= */
.stat-strip{display:grid;gap:1px;background:var(--border);border:1px solid var(--border);margin:28px 0;}
.stat-strip__item{background:var(--bg-card);padding:20px 18px;}
.stat-strip__value{font-family:var(--font-display);font-size:28px;color:var(--accent-secondary);font-weight:700;}
.stat-strip__label{font-size:11.5px;color:var(--text-dim);margin-top:6px;line-height:1.4;}

/* =========================================================
   Table
   ========================================================= */
table{width:100%;border-collapse:collapse;font-size:13.5px;}
th{font-family:var(--font-mono);font-size:10.5px;text-transform:uppercase;letter-spacing:var(--tracking-label);color:var(--text-faint);text-align:left;padding:10px 14px;border-bottom:1px solid var(--border-strong);}
td{padding:14px;border-bottom:1px solid var(--border);color:var(--text-dim);}
td:first-child{color:var(--text);font-weight:600;padding-left:0;}

/* =========================================================
   Timeline (Home "how it works")
   ========================================================= */
.timeline{position:relative;padding-left:36px;}
.timeline::before{content:"";position:absolute;left:5px;top:6px;bottom:6px;width:2px;background:var(--border-strong);}
.timeline__item{position:relative;padding-bottom:32px;}
.timeline__item:last-child{padding-bottom:0;}
.timeline__dot{position:absolute;left:-36px;top:2px;width:12px;height:12px;border-radius:50%;border:2px solid var(--bg-elevated);}
.timeline__dot--primary{background:var(--accent-primary);}
.timeline__dot--cool{background:var(--accent-cool);}
.timeline__dot--volt{background:var(--volt-600);}
.timeline__step{font-family:var(--font-mono);font-size:12px;margin-bottom:6px;}
.timeline__step--primary{color:var(--accent-primary-dim);}
.timeline__step--cool{color:var(--accent-cool);}
.timeline__step--volt{color:var(--accent-secondary);}
.timeline h3{font-size:18px;margin:0 0 6px;}
.timeline p{font-size:14px;color:var(--text-dim);margin:0;}

/* =========================================================
   Logo strip (Home "agentic AI")
   ========================================================= */
.logo-strip{display:flex;flex-wrap:wrap;align-items:center;gap:48px;padding-top:8px;}
.logo-strip img{height:30px;width:auto;filter:brightness(0) invert(1);opacity:0.85;}

/* =========================================================
   Case cards
   ========================================================= */
.case-card{display:block;background:var(--bg-card);border:1px solid var(--border);overflow:hidden;box-shadow:var(--shadow-card);text-decoration:none;color:inherit;}
.case-card__body{padding:22px 24px;}
.case-card__body--sm{padding:18px 20px;}
.case-card__tag{font-family:var(--font-mono);font-size:10.5px;text-transform:uppercase;letter-spacing:var(--tracking-label);color:var(--text-faint);}
.case-card h3{font-family:var(--font-display);font-weight:600;font-size:17px;margin:8px 0;}
.case-card__body--sm h3{font-size:15.5px;margin-top:6px;margin-bottom:0;}
.case-card p{font-size:13.5px;color:var(--text-dim);margin:0;}

/* =========================================================
   Contact CTA band + form
   ========================================================= */
.cta-band{background:var(--gradient-dark);padding:56px 64px;}
.cta-band__eyebrow{font-family:var(--font-mono);font-size:11px;text-transform:uppercase;letter-spacing:var(--tracking-eyebrow);color:var(--volt-500);margin-bottom:10px;}
.cta-band h2{font-size:30px;color:var(--paper-000);margin:0;max-width:640px;}
.cta-band p{font-size:14px;color:rgba(255,255,255,0.6);margin:14px 0 0;}

.contact-form{
  background:var(--bg-card);border:1px solid var(--border);border-top:none;
  box-shadow:var(--shadow-card);padding:40px 64px;display:flex;flex-direction:column;gap:18px;
}
.contact-form--boxed{border-radius:var(--radius);border-top:1px solid var(--border);padding:40px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-field label{
  font-family:var(--font-mono);font-size:11px;text-transform:uppercase;letter-spacing:var(--tracking-label);
  color:var(--text-faint);display:block;margin-bottom:6px;
}
.form-field input,.form-field textarea,.form-field select{
  width:100%;padding:11px 14px;border:1px solid var(--border-strong);border-radius:var(--radius-sm);
  font-size:14px;font-family:var(--font-body);color:var(--text);background:var(--bg);box-sizing:border-box;
}
.form-field textarea{resize:vertical;}
.form-actions{display:flex;align-items:center;justify-content:flex-end;gap:16px;}
.form-note{font-size:12px;color:var(--text-faint);margin:0;}
.form-status{font-size:13px;font-weight:600;margin:0;min-height:1em;}
.form-status.is-success{color:var(--accent-secondary);}
.form-status.is-error{color:#e5484d;}

/* =========================================================
   Footer
   ========================================================= */
.site-footer{background:var(--ink-950);}
.site-footer__inner{max-width:var(--content-max);margin:0 auto;padding:64px 40px 32px;}
.site-footer__top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,0.1);}
.site-footer__blurb{font-size:13.5px;color:rgba(255,255,255,0.55);max-width:280px;line-height:1.55;margin:0;}
.site-footer__heading{font-family:var(--font-mono);font-size:10.5px;text-transform:uppercase;letter-spacing:0.1em;color:rgba(255,255,255,0.4);margin-bottom:14px;}
.site-footer__links{display:flex;flex-direction:column;gap:10px;font-size:13.5px;}
.footer-link{color:rgba(255,255,255,0.6);text-decoration:none;}
.footer-link:hover{color:#fff;text-decoration:none;}
.site-footer__static{color:rgba(255,255,255,0.6);}
.site-footer__bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding-top:24px;font-family:var(--font-mono);font-size:11px;color:rgba(255,255,255,0.35);text-transform:uppercase;letter-spacing:0.06em;}

/* =========================================================
   Image placeholders (stand-ins for real photography)
   ========================================================= */
.img-placeholder{
  position:relative;overflow:hidden;
  background:
    linear-gradient(135deg, rgba(52,87,255,0.16) 0%, rgba(18,179,168,0.14) 55%, rgba(159,232,56,0.14) 100%),
    repeating-linear-gradient(45deg, rgba(14,17,22,0.05) 0, rgba(14,17,22,0.05) 1px, transparent 1px, transparent 14px);
  display:flex;align-items:center;justify-content:center;
}
.img-placeholder--dark{
  background:
    linear-gradient(135deg, rgba(52,87,255,0.30) 0%, rgba(18,179,168,0.22) 55%, rgba(159,232,56,0.16) 100%),
    repeating-linear-gradient(45deg, rgba(255,255,255,0.04) 0, rgba(255,255,255,0.04) 1px, transparent 1px, transparent 14px),
    var(--ink-950);
}
.img-placeholder--circle{border-radius:50%;}
.img-placeholder__label{
  font-family:var(--font-mono);font-size:10.5px;text-transform:uppercase;letter-spacing:var(--tracking-label);
  color:var(--text-faint);background:rgba(255,255,255,0.7);padding:5px 10px;
}
.img-placeholder--dark .img-placeholder__label{color:rgba(255,255,255,0.7);background:rgba(255,255,255,0.08);}
.img-placeholder--circle .img-placeholder__label{font-size:8.5px;padding:3px 6px;text-align:center;}

/* =========================================================
   Sections / utility
   ========================================================= */
section{position:relative;}
.section-pad{padding:80px 40px;}
.bg-elevated{background:var(--bg-elevated);}
.bg-dark{background:var(--ink-950);}
.how-we-work-section{
  background:linear-gradient(135deg, var(--ink-950) 0%, #142057 55%, #0c3a3f 100%);
}
.agentic-ai-section{
  background:
    linear-gradient(280deg, rgba(14,17,22,0.85) 0%, rgba(14,17,22,0.45) 45%, transparent 90%),
    url('assets/photos/agentic-ai.jpg');
  background-size:cover;
  background-position:center;
}
.agentic-ai-content{margin-left:auto;max-width:520px;}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width:960px){
  .grid-3,.grid-5{grid-template-columns:1fr 1fr;}
  .site-footer__top{grid-template-columns:1fr 1fr;}
  .hero-dark h1{font-size:42px;}
  .hero-light h1{font-size:34px;}
}
@media (max-width:720px){
  .wrap{padding:0 24px;}
  .site-nav__inner{padding:12px 20px;}
  .grid-2,.grid-3,.grid-5{grid-template-columns:1fr;}
  .how-it-works-grid{grid-template-columns:1fr !important;}
  .how-decor{display:none;}
  .hero-dark{min-height:520px;}
  .hero-dark__media{position:absolute;inset:0;top:0;right:0;width:100%;height:100%;}
  .hero-dark__scrim{background:linear-gradient(180deg, rgba(14,17,22,0.35) 0%, rgba(14,17,22,0.96) 100%);}
  .hero-dark__content{padding:64px 24px;}
  .hero-dark h1{font-size:34px;max-width:none;}
  .cta-band,.contact-form{padding:32px 24px;}
  .form-row{grid-template-columns:1fr;}
  .site-footer__top{grid-template-columns:1fr;gap:28px;}
  .site-footer__inner{padding:48px 24px 24px;}
}