/* ============================================================
   hiTHEK STUDIEN — Sistema de diseño compartido
   ============================================================ */

:root {
  --navy-900: #081627;
  --navy-800: #0c2440;
  --navy-700: #133456;
  --navy-600: #1a4670;
  --blue: #2a6fa8;
  --blue-light: #4a8bc4;
  --gold: #c08a1f;
  --gold-light: #dba736;
  --paper: #faf8f4;
  --paper-dim: #f2efe8;
  --ink: #131f2e;
  --ink-mid: #4c5b6c;
  --ink-soft: #7488a0;
  --line: #e3ddd0;
  --line-dark: rgba(255, 255, 255, 0.12);
  --green: #276b46;
  --white: #ffffff;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-soft: 0 1px 2px rgba(8, 22, 39, .04), 0 8px 24px rgba(8, 22, 39, .06);
  --shadow-lift: 0 4px 10px rgba(8, 22, 39, .08), 0 20px 40px rgba(8, 22, 39, .10);
  --container: 1120px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 6vw; }

h1, h2, h3 { font-family: 'DM Serif Display', serif; font-weight: 400; letter-spacing: -.01em; }

.eyebrow {
  display: inline-block;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}
.eyebrow.on-dark { color: var(--gold-light); }

.section-title {
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  line-height: 1.18;
  color: var(--ink);
  margin-bottom: 16px;
}
.section-title.on-dark { color: var(--white); }
.section-sub {
  font-size: 1.02rem;
  color: var(--ink-mid);
  max-width: 640px;
  line-height: 1.7;
}
.section-sub.on-dark { color: #c3d0dd; }
.section-head { max-width: 760px; margin: 0 auto 44px; text-align: center; }
.section-head .section-sub { margin: 0 auto; }

section { padding: 76px 0; }
@media (max-width: 720px) { section { padding: 52px 0; } }

/* ---------- top bars ---------- */
.util-bar {
  background: var(--navy-900);
  padding: 7px 6vw;
  display: flex; justify-content: space-between; align-items: center;
  font-size: .74rem;
}
.util-bar .util-msg { color: #9fb3c8; }
.lang-switch { display: flex; gap: 10px; }
.lang-switch a { color: #9fb3c8; text-decoration: none; font-weight: 600; }
.lang-switch a.active { color: var(--gold-light); }
.lang-switch a:hover { color: var(--gold-light); }

nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(8, 22, 39, .97);
  backdrop-filter: blur(10px);
  padding: 14px 6vw;
  display: flex; justify-content: space-between; align-items: center;
  border-bottom: 1px solid var(--line-dark);
}
.brand { display: flex; flex-direction: column; text-decoration: none; }
.brand-eyebrow { color: var(--gold-light); font-size: .64rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
.brand-name { color: #fff; font-family: 'DM Serif Display', serif; font-size: 1.12rem; line-height: 1.15; }
.nav-right { display: flex; align-items: center; gap: 18px; }
.nav-link {
  color: #b9c6d4; text-decoration: none; font-size: .86rem; font-weight: 600;
  display: flex; align-items: center; gap: 6px;
}
.nav-link:hover { color: var(--gold-light); }
.nav-cta {
  background: var(--gold-light); color: var(--navy-900);
  padding: 10px 20px; border-radius: 999px;
  font-weight: 700; font-size: .84rem; text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease;
  white-space: nowrap;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 8px 18px rgba(219,167,54,.35); }
@media (max-width: 640px) {
  .nav-link.hide-mobile { display: none; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 15px 28px; border-radius: 999px;
  font-weight: 700; font-size: .95rem; text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
  border: none; cursor: pointer;
}
.btn-gold { background: linear-gradient(135deg, var(--gold-light), var(--gold)); color: #1c1300; box-shadow: 0 10px 24px rgba(192,138,31,.30); }
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(192,138,31,.40); }
.btn-outline { background: transparent; color: var(--white); border: 1.5px solid rgba(255,255,255,.35); }
.btn-outline:hover { border-color: var(--gold-light); color: var(--gold-light); }
.btn-block { width: 100%; }
.btn-sm { padding: 11px 20px; font-size: .84rem; }

/* ---------- hero ---------- */
.hero {
  background: radial-gradient(ellipse at 20% -10%, #14395c 0%, transparent 55%),
              linear-gradient(160deg, var(--navy-900) 0%, #061020 100%);
  padding: 56px 6vw 60px;
  position: relative; overflow: hidden;
}
.hero-inner {
  max-width: var(--container); margin: 0 auto;
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(219,167,54,.12); border: 1px solid rgba(219,167,54,.35);
  color: var(--gold-light); font-size: .78rem; font-weight: 600;
  padding: 6px 14px; border-radius: 999px; margin-bottom: 20px;
}
.hero-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: #4ade80; animation: pulse 1.8s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.35} }
.hero h1 { font-size: clamp(2rem, 4.4vw, 3.1rem); line-height: 1.14; color: #fff; margin-bottom: 20px; }
.hero h1 em { color: var(--gold-light); font-style: normal; }
.hero-sub { font-size: 1.08rem; color: #c3d0dd; max-width: 560px; margin-bottom: 30px; line-height: 1.7; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 22px; }
.hero-note { display: flex; gap: 10px; align-items: flex-start; color: #9fb3c8; font-size: .86rem; max-width: 500px; }
.hero-note strong { color: #e7edf3; display: block; margin-bottom: 2px; font-weight: 700; }

.hero-stats { display: flex; gap: 28px; margin-top: 38px; flex-wrap: wrap; }
.stat-num { font-family: 'DM Serif Display', serif; font-size: 1.5rem; color: var(--gold-light); }
.stat-label { font-size: .74rem; color: #92a4b8; line-height: 1.35; margin-top: 2px; }

/* credential card */
.cred-card {
  background: linear-gradient(160deg, #10263f, #0a1c31);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-lift);
}
.cred-card-top { display: flex; align-items: center; gap: 12px; padding-bottom: 18px; border-bottom: 1px solid var(--line-dark); margin-bottom: 16px; }
.cred-seal {
  width: 46px; height: 46px; border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: .68rem; color: #1c1300; flex-shrink: 0;
}
.cred-card-top strong { color: #fff; display: block; font-size: .92rem; }
.cred-card-top span { color: #92a4b8; font-size: .76rem; }
.cred-row { display: flex; justify-content: space-between; gap: 12px; padding: 9px 0; border-bottom: 1px solid rgba(255,255,255,.06); font-size: .84rem; }
.cred-row:last-child { border-bottom: none; }
.cred-row .k { color: #92a4b8; }
.cred-row .v { color: #e7edf3; font-weight: 600; text-align: right; }
.cred-foot { margin-top: 16px; background: rgba(74,222,128,.08); border: 1px solid rgba(74,222,128,.25); border-radius: var(--radius-sm); padding: 12px 14px; }
.cred-foot p { color: #86efac; font-size: .82rem; font-weight: 700; margin-bottom: 2px; }
.cred-foot span { color: #92a4b8; font-size: .74rem; }

@media (max-width: 880px) {
  .hero-inner { grid-template-columns: 1fr; }
  .cred-card { max-width: 460px; }
}

/* ---------- trust strip ---------- */
.trust-strip {
  background: var(--navy-800);
  padding: 20px 6vw;
  display: flex; flex-wrap: wrap; justify-content: center; gap: 32px;
  border-top: 1px solid var(--line-dark);
}
.trust-item { display: flex; align-items: center; gap: 9px; color: #c3d0dd; font-size: .82rem; font-weight: 500; }
.trust-item .ico { color: var(--gold-light); font-size: 1rem; }

/* ---------- pain / two-column ---------- */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
@media (max-width: 780px) { .two-col { grid-template-columns: 1fr; } }
.info-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; box-shadow: var(--shadow-soft);
}
.info-card h3 { font-family: 'Inter', sans-serif; font-weight: 700; font-size: 1.05rem; margin-bottom: 12px; color: var(--ink); }
.info-card p { color: var(--ink-mid); font-size: .94rem; margin-bottom: 10px; }
.info-card ul { list-style: none; margin-top: 12px; }
.info-card li { padding-left: 20px; position: relative; color: var(--ink-mid); font-size: .92rem; margin-bottom: 8px; }
.info-card li::before { content: '—'; position: absolute; left: 0; color: var(--gold); }

/* ---------- testimonial / case cards ---------- */
.quote-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.quote-grid.three { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .quote-grid, .quote-grid.three { grid-template-columns: 1fr; } }
.quote-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow-soft);
}
.quote-tag { display: inline-block; font-size: .68rem; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; color: var(--blue); margin-bottom: 12px; }
.quote-card blockquote { color: var(--ink); font-size: .95rem; line-height: 1.65; font-style: italic; margin-bottom: 14px; }
.quote-foot { font-size: .78rem; color: var(--ink-soft); border-top: 1px solid var(--line); padding-top: 10px; }
.quote-note { text-align: center; color: var(--ink-soft); font-size: .8rem; margin-top: 20px; }

.quote-card.dark { background: var(--navy-800); border-color: var(--line-dark); }
.quote-card.dark .quote-tag { color: var(--gold-light); }
.quote-card.dark blockquote { color: #dbe4ee; }
.quote-card.dark .quote-foot { color: #92a4b8; border-color: var(--line-dark); }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--navy-800), var(--navy-900));
  border-radius: var(--radius);
  padding: 38px 40px;
  text-align: center;
  margin-top: 40px;
}
.cta-band h3 { font-family: 'Inter', sans-serif; font-weight: 700; font-size: 1.15rem; color: #fff; margin-bottom: 8px; }
.cta-band p { color: #b9c6d4; font-size: .92rem; margin-bottom: 20px; }
@media (max-width: 640px) { .cta-band { padding: 30px 22px; } }

/* ---------- instructor ---------- */
.instructor-sec { background: var(--navy-900); }
.instructor-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 52px; align-items: start; }
@media (max-width: 880px) { .instructor-grid { grid-template-columns: 1fr; } }
.instructor-photo-wrap { position: sticky; top: 90px; }
.instructor-photo { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lift); aspect-ratio: 4/5; }
.instructor-photo img { width: 100%; height: 100%; object-fit: cover; }
.instructor-mini { margin-top: 16px; background: var(--navy-800); border: 1px solid var(--line-dark); border-radius: var(--radius-sm); padding: 16px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px; }
.instructor-mini div span { display: block; color: #7f93a8; font-size: .68rem; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 2px; }
.instructor-mini div strong { color: #e7edf3; font-size: .82rem; }

.instructor-copy p { color: #c3d0dd; font-size: .98rem; margin-bottom: 16px; line-height: 1.75; }
.instructor-copy strong { color: #fff; }
.cred-list { margin-top: 22px; display: flex; flex-direction: column; gap: 16px; }
.cred-list-item { display: flex; gap: 14px; }
.cred-list-item .ico {
  width: 38px; height: 38px; border-radius: 50%; background: rgba(219,167,54,.14); border: 1px solid rgba(219,167,54,.3);
  display: flex; align-items: center; justify-content: center; font-size: 1rem; flex-shrink: 0;
}
.cred-list-item strong { display: block; color: #fff; font-size: .92rem; margin-bottom: 2px; }
.cred-list-item span { color: #92a4b8; font-size: .82rem; }

/* ---------- subjects ---------- */
.subj-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 900px) { .subj-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .subj-grid { grid-template-columns: 1fr; } }
.subj-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 22px; text-align: left; }
.subj-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--paper-dim); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; margin-bottom: 14px; }
.subj-card h3 { font-family: 'Inter', sans-serif; font-weight: 700; font-size: .98rem; margin-bottom: 8px; }
.subj-card p { color: var(--ink-mid); font-size: .86rem; line-height: 1.6; }

/* ---------- process ---------- */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
@media (max-width: 900px) { .steps-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .steps-grid { grid-template-columns: 1fr; } }
.step-card { position: relative; padding: 24px 20px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); }
.step-num { font-family: 'DM Serif Display', serif; font-size: 1.8rem; color: var(--gold); margin-bottom: 10px; }
.step-card h3 { font-family: 'Inter', sans-serif; font-weight: 700; font-size: .94rem; margin-bottom: 6px; }
.step-card p { color: var(--ink-mid); font-size: .84rem; line-height: 1.55; }

/* ---------- referral ---------- */
.referral {
  max-width: var(--container); margin: 0 auto 0; padding: 22px 6vw 0;
}
.referral-box {
  display: flex; align-items: center; gap: 18px;
  background: linear-gradient(135deg, #fbf3de, #f5e8c4);
  border: 1px solid #e8d49e; border-radius: var(--radius);
  padding: 22px 26px;
}
.referral-box .ico { font-size: 1.8rem; }
.referral-box h3 { font-family: 'Inter', sans-serif; font-weight: 700; font-size: .96rem; color: #5a4413; margin-bottom: 4px; }
.referral-box p { color: #7a6428; font-size: .84rem; }
@media (max-width: 600px) { .referral-box { flex-direction: column; text-align: center; } }

/* ---------- pricing ---------- */
.pricing-tabs { display: flex; justify-content: center; gap: 10px; margin-bottom: 36px; flex-wrap: wrap; }
.ptab {
  background: var(--white); border: 1px solid var(--line); color: var(--ink-mid);
  padding: 11px 22px; border-radius: 999px; font-weight: 700; font-size: .84rem; cursor: pointer;
}
.ptab.active { background: var(--navy-900); color: #fff; border-color: var(--navy-900); }
.ppanel { display: none; }
.ppanel.active { display: block; }
.group-note { text-align: center; background: var(--paper-dim); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px 18px; font-size: .88rem; color: var(--ink-mid); margin-bottom: 24px; }
.price-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
@media (max-width: 1080px) { .price-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 720px) { .price-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .price-grid { grid-template-columns: 1fr; } }
.price-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 18px; display: flex; flex-direction: column; position: relative;
}
.price-card.star { border: 1.5px solid var(--gold); box-shadow: 0 10px 26px rgba(192,138,31,.14); }
.price-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--gold); color: #1c1300; font-size: .68rem; font-weight: 800; padding: 4px 12px; border-radius: 999px; white-space: nowrap; }
.price-name { font-weight: 700; font-size: .88rem; color: var(--ink); margin-bottom: 6px; }
.price-amount { font-family: 'DM Serif Display', serif; font-size: 1.7rem; color: var(--navy-900); }
.price-per { font-size: .74rem; color: var(--ink-soft); margin-bottom: 8px; }
.price-save { display: inline-block; background: rgba(39,107,70,.1); color: var(--green); font-size: .7rem; font-weight: 700; padding: 3px 9px; border-radius: 999px; margin-bottom: 12px; align-self: flex-start; }
.price-feat { list-style: none; margin-bottom: 16px; flex: 1; }
.price-feat li { font-size: .78rem; color: var(--ink-mid); padding-left: 16px; position: relative; margin-bottom: 6px; line-height: 1.4; }
.price-feat li::before { content: '✓'; position: absolute; left: 0; color: var(--green); font-weight: 700; }

/* ---------- contact ---------- */
.contact-sec { background: var(--navy-900); }
.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
@media (max-width: 880px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-methods { display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }
.cm-link { display: flex; align-items: center; gap: 14px; background: var(--navy-800); border: 1px solid var(--line-dark); border-radius: var(--radius-sm); padding: 14px 18px; text-decoration: none; }
.cm-link .ico { font-size: 1.2rem; }
.cm-label { color: #7f93a8; font-size: .7rem; text-transform: uppercase; letter-spacing: .05em; }
.cm-val { color: #fff; font-weight: 600; font-size: .92rem; }
.contact-card { background: var(--navy-800); border: 1px solid var(--line-dark); border-radius: var(--radius); padding: 32px; text-align: center; }
.contact-card h3 { color: #fff; font-family: 'Inter'; font-weight: 700; font-size: 1.05rem; margin-bottom: 10px; }
.contact-card p { color: #b9c6d4; font-size: .88rem; margin-bottom: 20px; }
.contact-card .fine { color: #7f93a8; font-size: .78rem; margin-top: 16px; }
.contact-card .fine a { color: var(--gold-light); text-decoration: none; }

/* ---------- inter-page nav band ---------- */
.page-jump {
  background: var(--paper-dim); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: 28px 6vw; text-align: center;
}
.page-jump p { color: var(--ink-mid); font-size: .92rem; margin-bottom: 14px; }
.page-jump-links { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.jump-btn {
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none;
  background: var(--white); border: 1px solid var(--line); color: var(--ink);
  padding: 11px 20px; border-radius: 999px; font-weight: 700; font-size: .84rem;
}
.jump-btn:hover { border-color: var(--gold); color: var(--gold); }
.back-link { display: inline-flex; align-items: center; gap: 6px; color: #9fb3c8; text-decoration: none; font-size: .84rem; font-weight: 600; }
.back-link:hover { color: var(--gold-light); }

/* ---------- footer ---------- */
footer { background: var(--navy-900); border-top: 1px solid var(--line-dark); padding: 44px 6vw 26px; }
.footer-inner { max-width: var(--container); margin: 0 auto; display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 24px; }
.footer-brand-name { color: #fff; font-family: 'DM Serif Display', serif; font-size: 1.05rem; margin-bottom: 6px; }
.footer-brand p { color: #7f93a8; font-size: .8rem; max-width: 360px; line-height: 1.6; }
.footer-nav { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-nav a { color: #9fb3c8; text-decoration: none; font-size: .82rem; font-weight: 500; }
.footer-nav a:hover { color: var(--gold-light); }
.footer-bottom { max-width: var(--container); margin: 28px auto 0; padding-top: 18px; border-top: 1px solid var(--line-dark); color: #64768a; font-size: .76rem; text-align: center; }

/* ---------- floating WhatsApp ---------- */
.wa-float {
  position: fixed; right: 18px; bottom: 18px; z-index: 9999;
  display: inline-flex; align-items: center; gap: 11px;
  padding: 13px 18px; border-radius: 999px;
  background: linear-gradient(135deg, #25D366, #128C7E);
  color: #fff; text-decoration: none; font-size: .88rem; font-weight: 700;
  box-shadow: 0 14px 32px rgba(0,0,0,.28), 0 6px 16px rgba(18,140,126,.3);
  transition: transform .15s ease, box-shadow .15s ease;
  max-width: min(90vw, 380px);
}
.wa-float:hover { transform: translateY(-2px); }
.wa-float svg { flex-shrink: 0; width: 24px; height: 24px; }
@media (max-width: 640px) {
  .wa-float { right: 12px; left: 12px; bottom: 12px; justify-content: center; }
}

/* ---------- misc helpers ---------- */
.mt-40 { margin-top: 40px; }
.center { text-align: center; }
.max-w-620 { max-width: 620px; margin-left: auto; margin-right: auto; }