/* Hector Herrera — modern tech brand. Inter + near-black/white + blue→violet gradient.
   Aligned to the hexaisystems.com design language. */

:root{
  --bg:#ffffff; --bg-2:#f8fafc; --bg-3:#f1f5f9;
  --ink:#0a0b10; --ink-soft:#334155; --ink-mut:#64748b; --ink-dim:#94a3b8;
  --line:#e2e8f0; --line-soft:#eef2f7;
  --accent:#3b82f6; --accent-2:#8b5cf6; --accent-deep:#2563eb;
  --grad:linear-gradient(135deg,#3b82f6 0%,#8b5cf6 100%);
  --grad-soft:linear-gradient(135deg,rgba(59,130,246,.12),rgba(139,92,246,.12));
  --dark:#0a0b10; --dark-2:#12141a; --dark-3:#1a1d27;
  --on-dark:#f8fafc; --on-dark-mut:#94a3b8; --line-dark:rgba(248,250,252,.10);
  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.4,0,.2,1); --d1:120ms; --d2:180ms; --d3:240ms;
  --wrap:1140px; --narrow:760px; --shadow:0 1px 2px rgba(10,11,16,.04),0 8px 30px -12px rgba(10,11,16,.12);
  --shadow-lg:0 1px 2px rgba(10,11,16,.05),0 24px 60px -20px rgba(31,41,55,.28);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.001ms!important;transition-duration:.001ms!important}}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--ink);
  font-size:clamp(15.5px,1vw,17px);line-height:1.65;letter-spacing:-.011em;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{font-weight:800;line-height:1.08;letter-spacing:-.03em;margin:0}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:clamp(20px,5vw,44px)}
.narrow{max-width:var(--narrow)}
.center{text-align:center}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-style:normal}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.skip-link{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;z-index:100;border-radius:0 0 8px 0}
.skip-link:focus{left:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

/* ── Header ── */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.8);
  backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.wordmark{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.wordmark-name{font-weight:800;font-size:17px;letter-spacing:-.02em}
.wordmark-rule{width:9px;height:9px;border-radius:50%;background:var(--grad);display:inline-block;order:-1}
.nav-list{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.nav-list a{color:var(--ink-mut);text-decoration:none;font-size:14px;font-weight:500;
  padding:8px 12px;border-radius:7px;position:relative;transition:color var(--d2) var(--ease),background var(--d2) var(--ease)}
.nav-list a:hover{color:var(--ink);background:var(--bg-3)}
.nav-list a[aria-current=page]{color:var(--ink)}
.nav-list a[aria-current=page]::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--grad);border-radius:2px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;width:40px;height:40px;position:relative}
.nav-toggle-bar,.nav-toggle-bar::before,.nav-toggle-bar::after{content:"";position:absolute;left:9px;width:22px;height:2px;background:var(--ink);border-radius:2px;transition:var(--d3) var(--ease)}
.nav-toggle-bar{top:19px}.nav-toggle-bar::before{top:-7px}.nav-toggle-bar::after{top:7px}
.nav-toggle[aria-expanded=true] .nav-toggle-bar{background:transparent}
.nav-toggle[aria-expanded=true] .nav-toggle-bar::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded=true] .nav-toggle-bar::after{top:0;transform:rotate(-45deg)}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font);font-size:14.5px;font-weight:600;
  text-decoration:none;padding:12px 22px;border-radius:9px;border:1px solid transparent;cursor:pointer;
  transition:transform var(--d2) var(--ease),box-shadow var(--d2) var(--ease),background var(--d2) var(--ease),color var(--d2) var(--ease)}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--grad);transform:translateY(-2px);box-shadow:0 12px 26px -10px rgba(79,110,246,.6)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-2px)}
.section-ink .btn-ghost,.page-head .btn-ghost,.closing .btn-ghost{border-color:var(--line-dark);color:var(--on-dark)}
.section-ink .btn-ghost:hover,.page-head .btn-ghost:hover,.closing .btn-ghost:hover{border-color:var(--on-dark)}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.center-row{justify-content:center}

/* ── Eyebrow ── */
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:12px;font-weight:500;
  letter-spacing:.14em;text-transform:uppercase;color:var(--ink-mut);margin:0 0 20px}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--grad)}
.section-ink .eyebrow,.page-head .eyebrow,.hero .eyebrow{color:var(--on-dark-mut)}

/* ── Hero ── */
.hero{position:relative;overflow:hidden;background:var(--bg);
  padding:clamp(90px,16vh,160px) 0 clamp(70px,11vh,120px)}
.hero-inner{position:relative;z-index:2;max-width:900px}
.hero::before{content:"";position:absolute;z-index:0;top:-30%;right:-10%;width:70vw;height:70vw;max-width:900px;max-height:900px;
  background:radial-gradient(circle at center,rgba(139,92,246,.20),rgba(59,130,246,.12) 40%,transparent 68%);
  filter:blur(10px);pointer-events:none}
.hero-grid{position:absolute;inset:0;z-index:1;opacity:.6;
  background-image:linear-gradient(var(--line-soft) 1px,transparent 1px),linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);
  background-size:48px 48px;mask-image:radial-gradient(120% 90% at 80% 0%,#000,transparent 70%);
  -webkit-mask-image:radial-gradient(120% 90% at 80% 0%,#000,transparent 70%)}
.hero-headline{font-size:clamp(38px,6.4vw,72px);max-width:15ch;letter-spacing:-.035em}
.hero-headline em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-support{font-size:clamp(17px,1.7vw,21px);color:var(--ink-soft);max-width:58ch;margin:26px 0 0;line-height:1.55;font-weight:400}
.hero-tertiary{margin-top:26px}
.hero-tertiary a{color:var(--ink-mut);text-decoration:none;font-size:14.5px;font-weight:500}
.hero-tertiary a:hover{color:var(--accent)}

/* ── Sections ── */
.section{padding:clamp(60px,9vh,108px) 0}
.section-paper{background:var(--bg-2)}
.section-ink{background:var(--dark);color:var(--on-dark);position:relative;overflow:hidden}
.section-ink::before{content:"";position:absolute;inset:0;background:radial-gradient(60% 120% at 50% 0%,rgba(99,102,241,.18),transparent 60%);pointer-events:none}
.section-ink .wrap{position:relative;z-index:1}
.section-ink .lead{color:var(--on-dark-mut)}
.section-title{font-size:clamp(25px,3.4vw,38px);margin-bottom:28px;letter-spacing:-.03em}
.lead{font-size:clamp(17px,1.5vw,19.5px);line-height:1.55;color:var(--ink-soft);margin:0;font-weight:400}
.page-head{position:relative;overflow:hidden;background:var(--dark);color:var(--on-dark);
  padding:clamp(84px,13vh,132px) 0 clamp(52px,8vh,82px)}
.page-head::before{content:"";position:absolute;top:-40%;right:-5%;width:60vw;height:60vw;max-width:760px;max-height:760px;
  background:radial-gradient(circle,rgba(139,92,246,.24),rgba(59,130,246,.12) 45%,transparent 70%);pointer-events:none}
.page-head .wrap{position:relative;z-index:1}
.page-head.tall{padding-block:clamp(110px,18vh,170px)}
.page-head .lead{color:var(--on-dark-mut);margin-top:20px}
.page-title{font-size:clamp(32px,5.2vw,56px);max-width:18ch;letter-spacing:-.035em}
.page-head.center .page-title,.page-head .center .page-title{margin-inline:auto}

.prose p{margin:0 0 20px;font-size:clamp(16.5px,1.4vw,18.5px);color:var(--ink-soft)}
.prose p:last-child{margin-bottom:0}
.link-arrow{color:var(--accent-deep);text-decoration:none;font-weight:600;display:inline-block;transition:transform var(--d2) var(--ease)}
.link-arrow:hover{transform:translateX(3px)}
.section-ink .link-arrow{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ── Pillars / patterns ── */
.pillar-grid,.pattern-grid{list-style:none;margin:0;padding:0;display:grid;gap:16px;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.pillar-card,.pattern-card{background:var(--bg);padding:28px 26px;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow);position:relative;overflow:hidden;transition:transform var(--d3) var(--ease),box-shadow var(--d3) var(--ease),border-color var(--d3) var(--ease)}
.pillar-card::before,.pattern-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform var(--d3) var(--ease)}
.pillar-card:hover,.pattern-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.pillar-card:hover::before,.pattern-card:hover::before{transform:scaleX(1)}
.section-paper .pillar-card,.section-paper .pattern-card{background:var(--bg)}
.pillar-index{font-family:var(--mono);font-size:13px;font-weight:600;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.pillar-title,.pattern-title{font-size:19px;font-weight:700;margin:14px 0 10px;letter-spacing:-.02em}
.pillar-body,.pattern-body{margin:0;color:var(--ink-mut);font-size:15px;line-height:1.6}

/* ── Split ── */
.split-inner{display:grid;gap:clamp(30px,5vw,60px);grid-template-columns:1fr 1fr}
.split-col .section-title{font-size:clamp(22px,2.6vw,29px)}

/* ── Steps ── */
.steps{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.step{display:flex;gap:18px;align-items:baseline;padding:20px 24px;background:var(--bg);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow)}
.step-index{font-family:var(--mono);font-weight:600;font-size:14px;min-width:28px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.step-body{font-size:16px}
.principle{margin:36px 0 0;padding:28px 32px;border:1px solid var(--line);border-left:4px solid transparent;
  border-image:var(--grad) 1;background:var(--bg-2);font-size:clamp(18px,2vw,22px);line-height:1.45;font-weight:600;letter-spacing:-.02em;color:var(--ink);border-radius:0 14px 14px 0}

/* ── Capability map ── */
.cap-grid{display:grid;gap:clamp(24px,3vw,36px);grid-template-columns:repeat(auto-fit,minmax(290px,1fr))}
.cap-group{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:26px 26px 22px;box-shadow:var(--shadow)}
.cap-title{font-size:16px;font-weight:700;padding-bottom:14px;margin-bottom:14px;border-bottom:1px solid var(--line);letter-spacing:-.02em;
  display:flex;align-items:center;gap:10px}
.cap-title::before{content:"";width:14px;height:3px;border-radius:2px;background:var(--grad)}
.cap-list{list-style:none;margin:0;padding:0}
.cap-list li{position:relative;padding:6px 0 6px 20px;color:var(--ink-mut);font-size:15px}
.cap-list li::before{content:"";position:absolute;left:0;top:13px;width:6px;height:6px;border-radius:50%;background:var(--accent-2)}

/* ── Chips ── */
.chip-row{list-style:none;display:flex;flex-wrap:wrap;gap:9px;margin:24px 0 0;padding:0}
.chip{font-size:13px;font-family:var(--mono);font-weight:500;padding:7px 14px;border-radius:8px;
  background:var(--bg);border:1px solid var(--line);color:var(--ink-soft);transition:var(--d2) var(--ease)}
.chip:hover{border-color:var(--accent);color:var(--accent-deep);transform:translateY(-1px)}
.muted-note{margin-top:26px;color:var(--ink-mut)}
.muted-note a{color:var(--accent-deep);font-weight:600;text-decoration:none}

/* ── Posts / media / empty ── */
.post-list,.media-list{list-style:none;margin:0;padding:0}
.post-item,.media-item{padding:28px 0;border-bottom:1px solid var(--line)}
.post-date,.media-meta{font-family:var(--mono);font-size:12px;letter-spacing:.05em;color:var(--ink-mut);text-transform:uppercase}
.media-meta{display:flex;gap:14px}
.post-title,.media-title{font-size:23px;font-weight:700;margin:8px 0 8px;letter-spacing:-.025em}
.post-title a,.media-title a{text-decoration:none}
.post-title a:hover,.media-title a:hover{color:var(--accent-deep)}
.post-summary,.media-context{margin:0;color:var(--ink-mut)}
.empty-state{padding:44px 34px;border:1px solid var(--line);border-radius:16px;background:var(--bg);box-shadow:var(--shadow);position:relative;overflow:hidden}
.empty-state::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad)}
.empty-state p{margin:0 0 14px}.empty-state p:last-child{margin:0}
.empty-state a{color:var(--accent-deep);font-weight:600;text-decoration:none}

/* ── Closing ── */
.closing-headline{font-size:clamp(28px,3.8vw,44px);margin-bottom:18px;letter-spacing:-.03em}
.closing .lead{margin-bottom:32px;margin-inline:auto;max-width:52ch}

/* ── Contact form ── */
.contact-form{margin-top:16px;max-width:580px}
.field{margin-bottom:20px;display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;font-weight:600;color:var(--ink)}
.field input,.field textarea{font:inherit;font-size:16px;padding:13px 15px;border:1px solid var(--line);
  border-radius:10px;background:var(--bg);color:var(--ink);width:100%;transition:var(--d2) var(--ease)}
.field textarea{resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(59,130,246,.14)}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}
.form-note{margin-top:14px;font-size:13.5px;color:var(--ink-mut)}
.notice{padding:15px 18px;border-radius:11px;margin-bottom:24px;font-size:15px;font-weight:500}
.notice-ok{background:#ecfdf5;border:1px solid #a7f3d0;color:#065f46}
.notice-err{background:#fef2f2;border:1px solid #fecaca;color:#991b1b}

/* ── Footer ── */
.site-footer{background:var(--dark);color:var(--on-dark-mut);padding:60px 0 30px;position:relative}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad)}
.footer-inner{display:grid;gap:32px;grid-template-columns:1.5fr 1fr 1fr}
.footer-name{font-weight:800;font-size:18px;color:var(--on-dark);letter-spacing:-.02em}
.footer-tag{margin:10px 0 0;font-size:13px;font-family:var(--mono);max-width:34ch}
.footer-nav ul,.footer-social ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-nav a,.footer-social a{text-decoration:none;font-size:14px;color:var(--on-dark-mut);transition:color var(--d2) var(--ease)}
.footer-nav a:hover,.footer-social a:hover{color:var(--on-dark)}
.footer-legal{margin-top:44px;padding-top:22px;border-top:1px solid var(--line-dark)}
.footer-legal p{margin:0;font-size:12.5px}

/* ── Responsive ── */
@media (max-width:820px){
  .nav-toggle{display:block}
  .nav-list{position:absolute;top:64px;left:0;right:0;background:rgba(255,255,255,.98);backdrop-filter:blur(12px);
    flex-direction:column;gap:0;border-bottom:1px solid var(--line);padding:8px 0;display:none}
  .nav-list.open{display:flex}
  .nav-list li{padding:0 clamp(20px,5vw,44px)}
  .nav-list a{display:block;padding:14px 0;border-bottom:1px solid var(--line-soft);font-size:16px;border-radius:0}
  .nav-list a[aria-current=page]::after{display:none}
  .nav-list li:last-child a{border-bottom:0}
  .split-inner{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr;gap:26px}
}