/* ==========================================================================
   Sigfried Bermudez — site.css
   Tech x Costa Rican carreta folklore. Single stylesheet, no framework.
   ========================================================================== */
:root{
  /* Night + carreta palette. Text colors meet WCAG AA on their backgrounds. */
  --night:#0B1626; --night-2:#12233A; --night-3:#1A3050;
  --ink:#16202C; --body:#35404D; --muted:#5E6875; --line:#E3E7ED; --surface:#F5F6F8; --white:#fff;
  --red:#C8102E;       /* carreta red — white text 5.9:1 */
  --red-bright:#E63946;/* decorative */
  --gold:#F5B700;      /* carreta yellow — use on dark only / as fill */
  --teal:#0E8C84;      /* Pacific teal — white text 4.6:1 */
  --cyan:#35E0D2;      /* neon accent on dark */
  --sky:#8FD3FF;
  --font-head:'Sora','Segoe UI',system-ui,sans-serif;
  --font-body:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --fs-h1:clamp(2.1rem,1.3rem + 3vw,3.6rem); --fs-h2:clamp(1.6rem,1.2rem + 1.6vw,2.5rem);
  --fs-h3:clamp(1.15rem,1.05rem + .5vw,1.4rem); --fs-lead:clamp(1.05rem,1rem + .35vw,1.25rem);
  --gutter:clamp(1rem,4vw,2.5rem); --section-y:clamp(3.5rem,7vw,6.5rem); --maxw:1160px;
  --r:14px; --r-lg:24px;
  --sh:0 2px 6px rgba(11,22,38,.06),0 14px 32px rgba(11,22,38,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;font-family:var(--font-body);font-size:1.0625rem;line-height:1.65;color:var(--body);background:var(--white);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg{max-width:100%;height:auto;display:block}
h1,h2,h3,h4{font-family:var(--font-head);color:var(--ink);line-height:1.15;letter-spacing:-.02em;margin:0 0 .6em;font-weight:700;text-wrap:balance}
h1{font-size:var(--fs-h1)}h2{font-size:var(--fs-h2)}h3{font-size:var(--fs-h3)}
p{margin:0 0 1.1em;text-wrap:pretty}p:last-child{margin-bottom:0}
a{color:var(--teal);text-underline-offset:3px}a:hover{color:var(--red)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
.skip-link{position:absolute;left:-999px;top:0;background:var(--gold);color:var(--night);padding:.5rem 1rem;z-index:99}.skip-link:focus{left:1rem}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px}

/* ---- Header ---- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(11,22,38,.92);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:68px}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:#fff;font-family:var(--font-head);font-weight:700;font-size:1.1rem;letter-spacing:-.01em}
.brand svg{width:34px;height:34px}
.brand small{display:block;font-family:var(--font-mono);font-size:.68rem;font-weight:400;color:var(--cyan);letter-spacing:.08em}
.nav__menu{display:flex;align-items:center;gap:1.4rem;list-style:none;margin:0;padding:0}
.nav__link{color:#DDE6F2;text-decoration:none;font-size:.95rem;font-weight:500}
.nav__link:hover,.nav__link[aria-current=page]{color:var(--gold)}
.nav__toggle{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;position:relative}
.nav__toggle span,.nav__toggle span::before,.nav__toggle span::after{position:absolute;left:10px;width:24px;height:2px;background:#fff;content:"";transition:transform .2s var(--ease)}
.nav__toggle span{top:21px}.nav__toggle span::before{top:-7px;left:0}.nav__toggle span::after{top:7px;left:0}
@media(max-width:820px){
  .nav__toggle{display:block}
  .nav__menu{position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:flex-start;gap:0;background:var(--night);padding:.5rem var(--gutter) 1.2rem;border-bottom:1px solid rgba(255,255,255,.1);display:none}
  .nav__menu.is-open{display:flex}
  .nav__menu li{width:100%}.nav__link{display:block;padding:.8rem 0;border-bottom:1px solid rgba(255,255,255,.07)}
  .nav__menu .btn{margin-top:1rem}
}

/* ---- Buttons ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-family:var(--font-head);font-weight:600;font-size:1rem;padding:.85rem 1.4rem;border-radius:999px;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:transform .15s var(--ease),box-shadow .15s var(--ease)}
.btn:hover{transform:translateY(-1px)}
.btn--primary{background:var(--red);color:#fff;box-shadow:0 10px 26px rgba(200,16,46,.28)}.btn--primary:hover{color:#fff;background:#A80D26}
.btn--gold{background:var(--gold);color:var(--night)}.btn--gold:hover{color:var(--night);background:#FFC72C}
.btn--ghost{border-color:rgba(255,255,255,.35);color:#fff}.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn--sm{padding:.55rem 1.05rem;font-size:.9rem}
.btn-row{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.8rem}

/* ---- Dark hero with carreta wheel + grid ---- */
.hero{position:relative;overflow:hidden;background:radial-gradient(1200px 600px at 85% 10%,rgba(53,224,210,.14),transparent 60%),radial-gradient(900px 500px at 0% 100%,rgba(200,16,46,.18),transparent 60%),var(--night);color:#DDE6F2;padding:clamp(3.5rem,8vw,7rem) 0 clamp(3.5rem,7vw,6rem)}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(143,211,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(143,211,255,.06) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(180deg,#000 30%,transparent 95%);pointer-events:none}
.hero__grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(2rem,5vw,4rem);align-items:center}
@media(max-width:900px){.hero__grid{grid-template-columns:1fr}.hero__media{max-width:380px;margin:0 auto}}
.hero h1{color:#fff}.hero h1 em{font-style:normal;color:var(--gold)}
.hero .lead{font-size:var(--fs-lead);color:#C9D5E4;max-width:40ch}
.eyebrow{display:inline-block;font-family:var(--font-mono);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);margin-bottom:1rem}
.eyebrow--dark{color:var(--teal)}
.hero__media .wheel{animation:spin 90s linear infinite;filter:drop-shadow(0 0 30px rgba(53,224,210,.25))}
@keyframes spin{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.hero__media .wheel{animation:none}html{scroll-behavior:auto}}
.page-hero{padding:clamp(3rem,6vw,5rem) 0}
.page-hero .lead{max-width:56ch}

/* ---- Folk stripe divider (carreta border band) ---- */
.folk-band{height:12px;background:repeating-linear-gradient(90deg,var(--red) 0 26px,var(--gold) 26px 34px,var(--teal) 34px 60px,var(--gold) 60px 68px)}

/* ---- Sections ---- */
.section{padding:var(--section-y) 0}
.section--surface{background:var(--surface)}
.section--night{background:var(--night);color:#C9D5E4}
.section--night h2,.section--night h3{color:#fff}
.section-head{max-width:720px;margin-bottom:2.5rem}
.section-head p{color:var(--muted);font-size:var(--fs-lead)}
.section--night .section-head p{color:#AEBCCD}
.grid{display:grid;gap:1.4rem}
.grid--3{grid-template-columns:repeat(3,1fr)}.grid--2{grid-template-columns:repeat(2,1fr)}
@media(max-width:900px){.grid--3{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.grid--3,.grid--2{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:1.6rem;box-shadow:var(--sh);position:relative;overflow:hidden}
.card::after{content:"";position:absolute;right:-40px;top:-40px;width:120px;height:120px;border-radius:50%;background:conic-gradient(from 0deg,var(--red) 0 25%,var(--gold) 0 50%,var(--teal) 0 75%,var(--gold) 0);opacity:.08}
.card__icon{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;background:var(--night);color:var(--gold);margin-bottom:1rem;font-family:var(--font-mono);font-weight:700}
.card p{color:var(--muted);font-size:.98rem}
.card--dark{background:var(--night-2);border-color:rgba(255,255,255,.08);color:#C9D5E4}
.card--dark h3{color:#fff}.card--dark p{color:#AEBCCD}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:center}
@media(max-width:900px){.split{grid-template-columns:1fr}}
.prose{max-width:68ch}.prose h2{margin-top:2.2rem}.prose h2:first-child{margin-top:0}
.quote{font-family:var(--font-head);font-size:clamp(1.3rem,1.1rem + 1vw,1.9rem);line-height:1.35;color:#fff;border-left:4px solid var(--gold);padding-left:1.2rem;margin:0}
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:1rem}
.steps li{counter-increment:s;position:relative;padding:1.1rem 1.2rem 1.1rem 4rem;background:#fff;border:1px solid var(--line);border-radius:var(--r)}
.steps li::before{content:counter(s,decimal-leading-zero);position:absolute;left:1.1rem;top:1.05rem;font-family:var(--font-mono);font-weight:700;color:var(--red)}
.tag{display:inline-block;font-family:var(--font-mono);font-size:.75rem;padding:.2rem .6rem;border-radius:999px;background:rgba(53,224,210,.12);color:var(--cyan);margin:0 .35rem .4rem 0}
.tag--light{background:var(--surface);color:var(--teal)}
.stat{font-family:var(--font-mono);color:var(--gold);font-size:.8rem;letter-spacing:.1em;text-transform:uppercase}
.photo-slot{border-radius:var(--r-lg);overflow:hidden;background:var(--night-2)}

/* ---- CTA band ---- */
.cta-band{background:linear-gradient(120deg,var(--red),#8E0B22);color:#fff;border-radius:var(--r-lg);padding:clamp(2rem,5vw,3.5rem);display:flex;flex-wrap:wrap;gap:1.5rem;align-items:center;justify-content:space-between;position:relative;overflow:hidden}
.cta-band h2{color:#fff;margin:0}.cta-band p{color:#FFE3E7;margin:.4rem 0 0}
.cta-band::after{content:"";position:absolute;right:-60px;bottom:-60px;width:220px;height:220px;background:url(/assets/img/rueda.svg) center/contain no-repeat;opacity:.18}

/* ---- Form ---- */
.form{display:grid;gap:1rem}
.form label{font-weight:600;color:var(--ink);font-size:.95rem;display:block;margin-bottom:.35rem}
.form input,.form textarea,.form select{width:100%;font:inherit;padding:.8rem 1rem;border:1px solid #C9D0DA;border-radius:10px;background:#fff;color:var(--ink)}
.form textarea{min-height:150px;resize:vertical}
.form .hp{position:absolute;left:-9999px}
.form__status{font-size:.95rem;min-height:1.5em}.form__status.ok{color:var(--teal)}.form__status.err{color:var(--red)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}@media(max-width:640px){.form-row{grid-template-columns:1fr}}

/* ---- Footer ---- */
.site-footer{background:var(--night);color:#AEBCCD;font-size:.93rem;padding:3rem 0 2rem}
.site-footer a{color:#DDE6F2;text-decoration:none}.site-footer a:hover{color:var(--gold)}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2rem}
@media(max-width:760px){.footer__grid{grid-template-columns:1fr}}
.footer__grid ul{list-style:none;margin:0;padding:0;display:grid;gap:.45rem}
.footer__grid h4{color:#fff;font-size:.95rem;margin-bottom:.8rem}
.footer__bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:2rem;padding-top:1.2rem;display:flex;flex-wrap:wrap;justify-content:space-between;gap:.8rem;font-size:.85rem}
.pura{font-family:var(--font-mono);color:var(--gold)}