/* ============================================================
   Impuls ProAge — Fotona4Glow landing
   Palette: ink/charcoal + warm gold (brand) + soft ivory
   ============================================================ */
:root{
  --ink:#0f1b2d;          /* deep navy */
  --ink-2:#16263d;
  --gold:#c79325;         /* brand gold (ProAge) — from official logo */
  --gold-d:#a67c1c;
  --grey:#666665;         /* brand grey (Impuls) — from official logo */
  --ivory:#f7f4ef;        /* warm off-white */
  --cream:#fbf9f5;
  --text:#2b3340;
  --muted:#6c7686;
  --line:#e6e0d6;
  --wa:#25d366;
  --shadow:0 18px 50px -20px rgba(15,27,45,.28);
  --radius:16px;
  --maxw:1140px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Hanken Grotesk',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--text);
  background:var(--cream);
  line-height:1.6;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3{font-family:'Hanken Grotesk',system-ui,sans-serif;color:var(--ink);font-weight:800;line-height:1.12;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,5.2vw,3.5rem)}
h2{font-size:clamp(1.7rem,3.6vw,2.5rem)}
h3{font-size:1.3rem;font-weight:700}
p{color:var(--text)}
a{color:inherit;text-decoration:none}
img,iframe{max-width:100%;display:block}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.narrow{max-width:780px}
.center{text-align:center}
.center.narrow{margin-inline:auto}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  font-weight:500;font-size:.98rem;letter-spacing:.2px;
  padding:.95rem 1.7rem;border-radius:999px;border:1px solid transparent;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-sm{padding:.6rem 1.2rem;font-size:.9rem}
.btn-block{display:flex;width:100%}
.btn-primary{background:var(--gold);color:#fff;box-shadow:0 12px 28px -12px rgba(166,124,28,.8)}
.btn-primary:hover{background:var(--gold-d);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}
.btn-whatsapp{background:var(--wa);color:#fff}
.btn-whatsapp:hover{filter:brightness(.95);transform:translateY(-2px)}

.kicker,.eyebrow{font-size:.78rem;letter-spacing:.22em;text-transform:uppercase;color:var(--gold-d);font-weight:600}
.kicker{margin-bottom:.6rem;display:block}
.lead{font-size:1.12rem;color:var(--muted);margin-top:1rem}

/* ---------- brand logo ---------- */
.logo{display:flex;align-items:center}
.logo-img{height:46px;width:auto;display:block}
.footer-logo-img{height:50px;width:auto;display:block}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(251,249,245,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:74px;gap:1rem}
.nav{display:flex;gap:1.7rem}
.nav a{font-size:.92rem;color:var(--text);font-weight:500;position:relative;padding:.2rem 0}
.nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1.5px;background:var(--gold);transition:width .25s}
.nav a:hover::after{width:100%}
.header-actions{display:flex;align-items:center;gap:.9rem}
.lang-switch{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden}
.lang-switch button{background:transparent;border:0;padding:.35rem .7rem;font-size:.8rem;font-weight:600;color:var(--muted);cursor:pointer;font-family:inherit}
.lang-switch button.active{background:var(--ink);color:#fff}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.nav-toggle span{width:24px;height:2px;background:var(--ink);transition:.3s}

/* ---------- hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;padding:clamp(4rem,10vw,7rem) 0 clamp(4rem,8vw,6rem)}
.hero-bg{position:absolute;inset:0;z-index:-2;
  background:
    radial-gradient(1200px 600px at 80% -10%,rgba(199,147,37,.24),transparent 60%),
    radial-gradient(900px 500px at 0% 110%,rgba(199,147,37,.12),transparent 55%),
    linear-gradient(160deg,var(--ink) 0%,var(--ink-2) 55%,#0b1626 100%);
}
.hero-bg::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:22px 22px;opacity:.5}
.hero-photo{position:absolute;top:0;right:0;height:100%;width:50%;object-fit:cover;object-position:30% 30%;z-index:-1;
  -webkit-mask-image:linear-gradient(to right,transparent,#000 38%);mask-image:linear-gradient(to right,transparent,#000 38%)}
.hero-inner{max-width:620px}
.hero .eyebrow{color:var(--gold)}
.brand-name{display:block;color:var(--gold);font-size:clamp(1.1rem,2.5vw,1.5rem);letter-spacing:.04em;margin-bottom:.4rem;font-weight:600}
.hero h1{color:#fff;margin-bottom:1.2rem;margin-top:.8rem}
.hero-sub{font-size:1.18rem;color:rgba(255,255,255,.82);max-width:620px;margin-bottom:2rem}
.hero-cta{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:2.8rem}
.hero-trust{list-style:none;display:flex;flex-wrap:wrap;gap:2.4rem}
.hero-trust li{display:flex;flex-direction:column}
.hero-trust strong{font-weight:800;font-size:2rem;color:var(--gold);line-height:1}
.hero-trust span{font-size:.85rem;color:rgba(255,255,255,.7);max-width:140px;margin-top:.3rem}

/* ---------- sections ---------- */
.section{padding:clamp(3.5rem,8vw,6rem) 0}
.section-alt{background:var(--ivory)}
.section .kicker{text-align:center}
.section .narrow.center h2{margin-top:.2rem}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-top:3rem}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:2rem 1.8rem;box-shadow:var(--shadow);transition:transform .25s}
.card:hover{transform:translateY(-4px)}
.card.plain{box-shadow:none;background:transparent;border-color:var(--line)}
.card-icon{font-size:1.6rem;color:var(--gold-d);margin-bottom:.8rem}
.card h3{margin-bottom:.5rem}
.card p{color:var(--muted);font-size:.98rem}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1.3rem;margin-top:3rem}
.step{background:#fff;border-radius:var(--radius);padding:1.8rem 1.4rem;border-top:3px solid var(--gold);box-shadow:var(--shadow)}
.step-num{font-size:1.5rem;color:var(--gold-d);font-weight:800;letter-spacing:-.02em}
.step h3{margin:.4rem 0 .6rem;font-size:1.2rem;letter-spacing:.02em}
.step p{color:var(--muted);font-size:.93rem}

/* media images in splits */
.media-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.media-img img{width:100%;height:100%;max-height:460px;object-fit:cover;display:block}
.media-split{margin-top:2.4rem;align-items:center}
.media-split .lead{margin-top:0}

/* who band */
.who-band{margin-top:2.6rem;background:var(--ink);color:#fff;border-radius:var(--radius);padding:2.2rem 2.4rem;box-shadow:var(--shadow)}
.who-band h3{color:#fff;margin-bottom:1.2rem}
.who-band .who-list{display:grid;grid-template-columns:1fr 1fr;gap:.9rem 2rem;margin-top:0}

/* antes y después — masonry (cada imagen mantiene su proporción, sin huecos) */
.ba-grid{columns:2;column-gap:1.4rem;max-width:880px;margin:2.8rem auto 0}
.ba-item{break-inside:avoid;margin:0 0 1.4rem;border-radius:14px;overflow:hidden;box-shadow:var(--shadow);line-height:0}
.ba-item img{width:100%;height:auto;display:block}
.ba-note{text-align:left;display:inline-block;margin-top:2rem}

/* split */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:3rem;align-items:center}
.check-list,.who-list{list-style:none;margin-top:1.6rem;display:flex;flex-direction:column;gap:.9rem}
.check-list li{position:relative;padding-left:2rem;font-size:1.05rem}
.check-list li::before{content:"✓";position:absolute;left:0;top:0;color:var(--gold-d);font-weight:700;width:1.3rem;height:1.3rem}
.disclaimer{margin-top:1.8rem;font-size:.88rem;color:var(--muted);font-style:italic;border-left:2px solid var(--gold);padding-left:1rem}
.split-card{background:var(--ink);color:#fff;border-radius:var(--radius);padding:2.4rem 2rem;box-shadow:var(--shadow)}
.split-card h3{color:#fff;margin-bottom:1rem}
.who-list li{position:relative;padding-left:1.6rem;color:rgba(255,255,255,.85);font-size:1rem}
.who-list li::before{content:"◆";position:absolute;left:0;color:var(--gold);font-size:.7rem;top:.35rem}

/* price */
.price-wrap{display:flex;gap:1.6rem;justify-content:center;flex-wrap:wrap;margin:3rem 0 2rem}
.price-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:2.2rem;width:320px;max-width:100%;text-align:center;position:relative;box-shadow:var(--shadow)}
.price-card.featured{border:2px solid var(--gold);transform:scale(1.04)}
.price-badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--gold);color:#fff;font-size:.72rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;padding:.35rem .9rem;border-radius:999px}
.price-tag-label{font-size:.9rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:.6rem}
.price-tag{color:var(--ink);margin-bottom:.6rem}
.price-tag strong{font-size:2.9rem;font-weight:800;letter-spacing:-.03em}
.price-note{font-size:.92rem;color:var(--muted)}
.price-foot{max-width:560px;margin:0 auto 1.6rem;color:var(--muted);font-size:.95rem}
.price-promo{display:inline-block;margin-top:1.1rem;background:rgba(199,147,37,.12);color:var(--gold-d);font-weight:600;font-size:.92rem;letter-spacing:.01em;padding:.5rem 1.1rem;border:1px solid rgba(199,147,37,.35);border-radius:999px}

/* faq */
.faq{margin-top:2.4rem;display:flex;flex-direction:column;gap:.9rem}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:.4rem 1.4rem;box-shadow:0 6px 18px -14px rgba(15,27,45,.4)}
.faq summary{cursor:pointer;font-weight:600;color:var(--ink);padding:1rem 0;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem;font-size:1.05rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--gold-d);font-size:1.5rem;font-weight:300;transition:transform .25s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{color:var(--muted);padding-bottom:1.1rem;font-size:.98rem}

/* contact */
.section-contact{background:linear-gradient(180deg,var(--ivory),var(--cream))}
.contact-split{align-items:start}
.contact-form-wrap form{margin-top:1.6rem;display:flex;flex-direction:column;gap:1rem}
.field{display:flex;flex-direction:column;gap:.4rem}
.field label{font-size:.85rem;font-weight:600;color:var(--ink)}
.field input,.field textarea{
  font-family:inherit;font-size:1rem;padding:.85rem 1rem;border:1px solid var(--line);
  border-radius:10px;background:#fff;color:var(--text);transition:border .2s,box-shadow .2s;resize:vertical;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(199,147,37,.18)}
.form-hint{font-size:.8rem;color:var(--muted)}
.form-status{font-size:.95rem;font-weight:500;min-height:1.2rem}
.form-status.ok{color:#1f8a52}
.form-status.err{color:#c0504d}

.contact-info{background:var(--ink);color:#fff;border-radius:var(--radius);padding:2.2rem;box-shadow:var(--shadow)}
.contact-info h3{color:#fff;margin-bottom:1.2rem}
.contact-list{list-style:none;display:flex;flex-direction:column;gap:1.2rem;margin-bottom:1.6rem}
.contact-list li{display:flex;flex-direction:column;gap:.2rem}
.ci-label{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold)}
.contact-list a{color:rgba(255,255,255,.9);font-size:1.02rem}
.contact-list a:hover{color:var(--gold)}
.map{margin-top:1.4rem;border-radius:12px;overflow:hidden;border:1px solid rgba(255,255,255,.12)}
.map iframe{width:100%;height:220px;border:0;filter:grayscale(.2)}

/* footer */
.site-footer{background:var(--ink);color:rgba(255,255,255,.75);padding:3rem 0 2.4rem}
.footer-inner{display:flex;justify-content:space-between;align-items:flex-start;gap:2rem;flex-wrap:wrap}
.footer-brand{display:flex;gap:1rem;align-items:center}
.footer-brand p{font-size:.85rem;color:rgba(255,255,255,.6);margin-top:.35rem}
.footer-legal{font-size:.78rem;color:rgba(255,255,255,.5);text-align:right;line-height:1.8;max-width:560px}
.footer-link{color:var(--gold);font-weight:600;text-decoration:underline;text-underline-offset:2px}
.footer-link:hover{color:#fff}

/* whatsapp float */
.wa-float{position:fixed;right:20px;bottom:20px;z-index:60;width:56px;height:56px;border-radius:50%;background:var(--wa);color:#fff;display:grid;place-items:center;box-shadow:0 12px 30px -8px rgba(37,211,102,.7);transition:transform .2s}
.wa-float:hover{transform:scale(1.08)}

/* ============================================================
   RESPONSIVE — adapts automatically from large desktop to phone
   Breakpoints:  ≤1024 tablet (hamburger nav) · ≤920 · ≤760 phone · ≤480 small phone
   ============================================================ */

/* Tablets and below: collapse the menu into a hamburger so the links never crowd the bar */
@media (max-width:1024px){
  .nav{position:fixed;inset:74px 0 auto 0;background:var(--cream);flex-direction:column;gap:0;
    padding:1rem 24px 1.4rem;border-bottom:1px solid var(--line);box-shadow:var(--shadow);
    transform:translateY(-145%);transition:transform .3s;z-index:40}
  .nav.open{transform:translateY(0)}
  .nav a{padding:.95rem 0;border-bottom:1px solid var(--line);font-size:1rem}
  .nav a::after{display:none}
  .nav-toggle{display:flex}
}

/* Tablet portrait: 3-up grids become 2-up, side-by-side splits stack */
@media (max-width:920px){
  .grid-3{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:2rem}
  .media-img img{max-height:380px}
}

/* Phone: everything goes single-column */
@media (max-width:760px){
  .header-inner{height:64px}
  .nav{inset:64px 0 auto 0}
  .logo-img{height:38px}
  .header-actions .btn-sm{display:none}
  .grid-3{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .price-card.featured{transform:none}
  .footer-inner{flex-direction:column}
  .footer-legal{text-align:left}
  .hero-trust{gap:1.6rem}
  .hero-photo{display:none}
  .hero-inner{max-width:100%}
  .who-band .who-list{grid-template-columns:1fr}
  .ba-grid{columns:1;max-width:420px}
  .media-img img{max-height:300px}
}

/* Small phones: tighter padding, full-width tappable CTAs */
@media (max-width:480px){
  .container{padding:0 18px}
  .nav{padding:1rem 18px 1.4rem}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .price-card{padding:1.8rem 1.4rem}
  .who-band{padding:1.8rem 1.5rem}
  .contact-info,.split-card{padding:1.8rem 1.5rem}
  .hero-trust{gap:1.1rem}
  .hero-trust strong{font-size:1.7rem}
  .hero-trust span{font-size:.8rem}
}