/* ============================================================
   SCIENCIA EXPERT — Complete Stylesheet
   Pages: index, servicios, cursos, contacto
   ============================================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ── Custom Properties ── */
:root {
  /* Surfaces */
  --surface:                  #f6f8f7;
  --surface-container-low:    #edf2f0;
  --surface-container-lowest: #ffffff;
  --surface-container-high:   #dce8e4;
  --surface-bright:           rgba(246, 248, 247, 0.88);

  /* Primary: Deep Forest Teal */
  --primary:           #0f4c40;
  --primary-mid:       #0d7a63;
  --primary-container: #0fa87e;
  --on-primary:        #ffffff;
  --gradient-primary:  linear-gradient(135deg, #0f4c40 0%, #0fa87e 100%);

  /* Accent: Amber Gold */
  --accent:            #c77b0a;
  --accent-light:      #f59e0b;
  --gradient-accent:   linear-gradient(135deg, #c77b0a, #f59e0b);

  /* Text */
  --on-surface:         #0d1c18;
  --on-surface-variant: #3a504b;
  --on-surface-muted:   #6a8480;

  /* Outline */
  --outline-variant: #b8cdc9;

  /* Typography */
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;

  /* Fluid type */
  --text-display-lg: clamp(2.75rem, 5.5vw, 4.75rem);
  --text-display-md: clamp(2.1rem,  4vw,   3.5rem);
  --text-display-sm: clamp(1.6rem,  3vw,   2.4rem);
  --text-headline:   clamp(1.2rem,  2vw,   1.65rem);
  --text-title:      1.125rem;
  --text-body-lg:    1.0625rem;
  --text-body:       1rem;
  --text-body-sm:    0.875rem;
  --text-label:      0.75rem;

  /* Spacing (8px base) */
  --s1: 8px;  --s2: 16px; --s3: 24px; --s4: 32px;
  --s5: 40px; --s6: 48px; --s7: 56px; --s8: 64px;
  --s9: 72px; --s10: 80px; --s12: 96px; --s14: 112px; --s16: 128px;

  /* Radius */
  --r-sm: 0.5rem; --r-md: 1rem; --r-lg: 2rem;
  --r-xl: 3rem;   --r-full: 9999px;

  /* Shadows */
  --shadow-ambient: 0 24px 48px rgba(13, 28, 24, 0.07);
  --shadow-hover:   0 32px 64px rgba(13, 28, 24, 0.13);
  --shadow-sm:      0 4px 16px  rgba(13, 28, 24, 0.06);

  /* Transitions */
  --ease:          cubic-bezier(0.4, 0, 0.2, 1);
  --transition:    0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-lg: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --container-max:    1280px;
  --safe-zone:        96px;
  --safe-zone-tablet: 40px;
  --safe-zone-mobile: 20px;
  --navbar-height:    70px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, textarea, select { font: inherit; outline: none; }

/* ── Base ── */
body {
  font-family: var(--font-family);
  background: var(--surface);
  color: var(--on-surface);
  line-height: 1.6;
  font-size: var(--text-body);
  -webkit-font-smoothing: antialiased;
}

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--safe-zone);
}

/* ══════════════════════════════════════════════
   NAVBAR
══════════════════════════════════════════════ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--navbar-height); z-index: 900;
  transition: background var(--transition), box-shadow var(--transition);
  background: transparent;
}
.navbar.scrolled {
  background: var(--surface-bright);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(13,28,24,.08);
}
.navbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 100%; gap: var(--s3);
}
.navbar-logo {
  display: flex; align-items: center; gap: 10px; flex-shrink: 0;
}
.navbar-logo-mark {
  width: 36px; height: 36px; border-radius: var(--r-md);
  background: var(--gradient-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: #fff; font-weight: 800; letter-spacing: -1px;
  flex-shrink: 0;
}
.navbar-logo-text {
  font-weight: 800; font-size: 1.15rem; letter-spacing: -0.02em;
  color: var(--on-surface);
}
.navbar-logo-text span { color: var(--primary-container); }

.nav-links {
  display: flex; align-items: center; gap: var(--s2);
}
.nav-links a {
  font-size: var(--text-body-sm); font-weight: 600;
  color: var(--on-surface-variant); padding: 6px 12px; border-radius: var(--r-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover, .nav-links a.active {
  color: var(--primary); background: var(--surface-container-high);
}

.btn-sistema {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 18px; border-radius: var(--r-full);
  background: var(--gradient-primary); color: #fff;
  font-size: var(--text-body-sm); font-weight: 700;
  transition: opacity var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}
.btn-sistema:hover { opacity: .88; box-shadow: 0 8px 24px rgba(15,76,64,.30); }
.btn-sistema svg { width: 15px; height: 15px; fill: currentColor; }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  width: 32px; height: 32px; align-items: center; justify-content: center;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--on-surface); border-radius: 2px;
  transition: var(--transition);
}

/* ══════════════════════════════════════════════
   BUTTONS
══════════════════════════════════════════════ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 28px; border-radius: var(--r-full);
  font-size: var(--text-body); font-weight: 700;
  transition: all var(--transition);
  white-space: nowrap; cursor: pointer;
}
.btn-primary {
  background: var(--gradient-primary); color: #fff;
  box-shadow: 0 4px 20px rgba(15,76,64,.25);
}
.btn-primary:hover { opacity: .88; box-shadow: 0 8px 30px rgba(15,76,64,.35); transform: translateY(-1px); }
.btn-accent {
  background: var(--gradient-accent); color: #fff;
  box-shadow: 0 4px 20px rgba(199,123,10,.25);
}
.btn-accent:hover { opacity: .88; box-shadow: 0 8px 30px rgba(199,123,10,.35); transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  border: 2px solid var(--outline-variant);
  color: var(--on-surface-variant);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: rgba(15,76,64,.05); }
.btn-outline-white {
  background: transparent;
  border: 2px solid rgba(255,255,255,.6);
  color: #fff;
}
.btn-outline-white:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.btn-white {
  background: #fff; color: var(--primary);
  box-shadow: var(--shadow-sm);
}
.btn-white:hover { box-shadow: var(--shadow-hover); transform: translateY(-1px); }
.btn-ghost-white {
  background: transparent; border: 1.5px solid rgba(255,255,255,.3);
  color: rgba(255,255,255,.8);
}
.btn-ghost-white:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.6); color: #fff; }
.btn-sm { padding: 8px 18px; font-size: var(--text-body-sm); }
.btn-full { width: 100%; }

/* ══════════════════════════════════════════════
   SECTION SHARED
══════════════════════════════════════════════ */
.section-label {
  display: inline-block; font-size: var(--text-label); font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase;
  color: var(--primary-container); margin-bottom: var(--s1);
}
.section-title {
  font-size: var(--text-display-sm); font-weight: 800;
  letter-spacing: -0.02em; line-height: 1.15;
  color: var(--on-surface); margin-bottom: var(--s2);
}
.section-body {
  font-size: var(--text-body-lg); color: var(--on-surface-variant);
  max-width: 640px; line-height: 1.7;
}
.section-header { margin-bottom: var(--s8); }
.section-header.center { text-align: center; }
.section-header.center .section-body { margin-inline: auto; }

/* ══════════════════════════════════════════════
   HERO
══════════════════════════════════════════════ */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  overflow: hidden;
  background: var(--on-surface);
}
.hero-bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #061a14 0%, #0f4c40 45%, #0d7a63 100%);
}
.hero-particles {
  position: absolute; inset: 0; overflow: hidden; pointer-events: none;
}
.hero-particle {
  position: absolute; border-radius: 50%;
  background: rgba(15,168,126,.15);
  animation: floatParticle 8s ease-in-out infinite;
}
.hero-particle:nth-child(1)  { width: 320px; height: 320px; top: -80px;  left: -80px;  animation-delay: 0s; }
.hero-particle:nth-child(2)  { width: 200px; height: 200px; top: 40%;   right: 5%;    animation-delay: -3s; }
.hero-particle:nth-child(3)  { width: 150px; height: 150px; bottom: 10%; left: 35%;   animation-delay: -6s; }
.hero-particle:nth-child(4)  { width: 80px;  height: 80px;  top: 25%;   left: 60%;   animation-delay: -1.5s; background: rgba(245,158,11,.12); }
.hero-particle:nth-child(5)  { width: 450px; height: 450px; bottom: -150px; right: -100px; animation-delay: -4s; }

@keyframes floatParticle {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-24px) scale(1.04); }
}

.hero-grid-overlay {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(15,168,126,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15,168,126,.06) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-content {
  position: relative; z-index: 2;
  padding-top: calc(var(--navbar-height) + 48px);
  padding-bottom: var(--s16);
  display: grid; grid-template-columns: 1fr 420px; gap: var(--s12); align-items: center;
}
.hero-content--center {
  grid-template-columns: 1fr;
  text-align: center;
  max-width: 820px; margin-inline: auto;
}
.hero-content--center .hero-subtitle { margin-inline: auto; }
.hero-content--center .hero-eyebrow { justify-content: center; }
.hero-content--center .hero-actions { justify-content: center; }
.hero-content--center .hero-stats { justify-content: center; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: var(--text-body-sm); font-weight: 600;
  color: rgba(255,255,255,.7); margin-bottom: var(--s3);
  padding: 6px 14px; border-radius: var(--r-full);
  border: 1px solid rgba(255,255,255,.15);
  background: rgba(255,255,255,.06);
}
.hero-title {
  font-size: var(--text-display-lg); font-weight: 800;
  letter-spacing: -0.03em; line-height: 1.08;
  color: #fff; margin-bottom: var(--s3);
}
.hero-title .highlight {
  background: linear-gradient(90deg, #0fa87e, #f59e0b);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: var(--text-body-lg); color: rgba(255,255,255,.75);
  line-height: 1.7; margin-bottom: var(--s6); max-width: 520px;
}
.hero-actions { display: flex; gap: var(--s2); flex-wrap: wrap; }
.hero-stats {
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--s2);
  margin-top: var(--s8);
}
.hero-stat {
  padding: var(--s3); border-radius: var(--r-md);
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1);
}
.hero-stat-num {
  font-size: 2rem; font-weight: 800; color: #fff;
  letter-spacing: -0.02em; line-height: 1;
}
.hero-stat-label { font-size: var(--text-body-sm); color: rgba(255,255,255,.6); margin-top: 4px; }

/* Login card inside hero */
.hero-login-card {
  background: var(--surface-container-lowest);
  border-radius: var(--r-xl); padding: var(--s6);
  box-shadow: 0 40px 80px rgba(0,0,0,.35);
  border: 1px solid rgba(15,168,126,.15);
}
.hero-login-header { margin-bottom: var(--s5); }
.hero-login-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: var(--text-label); font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase; color: var(--primary-container);
  margin-bottom: var(--s2);
}
.hero-login-badge svg { width: 14px; height: 14px; fill: currentColor; }
.hero-login-title { font-size: var(--text-title); font-weight: 700; color: var(--on-surface); }
.hero-login-subtitle { font-size: var(--text-body-sm); color: var(--on-surface-muted); margin-top: 4px; }

.form-group { margin-bottom: var(--s3); }
.form-label {
  display: block; font-size: var(--text-body-sm); font-weight: 600;
  color: var(--on-surface-variant); margin-bottom: 6px;
}
.form-input {
  width: 100%; padding: 11px 14px; border-radius: var(--r-md);
  background: var(--surface-container-low);
  border: 1.5px solid transparent;
  color: var(--on-surface); font-size: var(--text-body);
  transition: border-color var(--transition), background var(--transition);
}
.form-input:focus {
  background: var(--surface-container-lowest);
  border-color: var(--primary-container);
  box-shadow: 0 0 0 3px rgba(15,168,126,.12);
}
.login-error {
  font-size: var(--text-body-sm); color: #dc2626;
  background: #fef2f2; border-radius: var(--r-sm);
  padding: 8px 12px; margin-bottom: var(--s2); display: none;
}
.login-footer {
  margin-top: var(--s2); text-align: center;
  font-size: var(--text-label); color: var(--on-surface-muted);
}

/* ══════════════════════════════════════════════
   TRUST BAR
══════════════════════════════════════════════ */
.trust-bar {
  background: var(--surface-container-lowest);
  border-top: 1px solid var(--surface-container-high);
  border-bottom: 1px solid var(--surface-container-high);
  padding-block: var(--s5);
}
.trust-inner {
  display: flex; align-items: center; justify-content: center;
  gap: var(--s6); flex-wrap: wrap;
}
.trust-item {
  display: flex; align-items: center; gap: 8px;
  font-size: var(--text-body-sm); font-weight: 600;
  color: var(--on-surface-variant);
}
.trust-check {
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--gradient-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 10px; flex-shrink: 0;
}

/* ══════════════════════════════════════════════
   STATS
══════════════════════════════════════════════ */
.stats-section { padding-block: var(--s16); background: var(--surface); }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s4);
}
.stat-card {
  background: var(--surface-container-lowest);
  border-radius: var(--r-lg); padding: var(--s5);
  box-shadow: var(--shadow-ambient);
  transition: transform var(--transition), box-shadow var(--transition);
  text-align: center;
}
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.stat-number {
  font-size: clamp(2.2rem, 4vw, 3.2rem); font-weight: 800;
  letter-spacing: -0.03em; line-height: 1;
  background: var(--gradient-primary); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
}
.stat-label { font-size: var(--text-body-sm); color: var(--on-surface-muted); margin-top: 8px; font-weight: 500; }

/* ══════════════════════════════════════════════
   SERVICES
══════════════════════════════════════════════ */
.services-section { padding-block: var(--s16); background: var(--surface-container-low); }
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s4);
}
.service-card {
  background: var(--surface-container-lowest);
  border-radius: var(--r-lg); overflow: hidden;
  box-shadow: var(--shadow-ambient);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex; flex-direction: column;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.service-card-img-wrap { height: 200px; overflow: hidden; }
.service-card-img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--transition-lg);
}
.service-card:hover .service-card-img { transform: scale(1.06); }
.service-card-body { padding: var(--s4); flex: 1; display: flex; flex-direction: column; }
.service-card-icon {
  width: 44px; height: 44px; border-radius: var(--r-md);
  background: var(--gradient-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; margin-bottom: var(--s2);
}
.service-card-title {
  font-size: var(--text-title); font-weight: 700;
  color: var(--on-surface); margin-bottom: var(--s1);
}
.service-card-desc {
  font-size: var(--text-body-sm); color: var(--on-surface-variant);
  line-height: 1.65; flex: 1; margin-bottom: var(--s3);
}
.service-card-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  display: inline-block; font-size: var(--text-label); font-weight: 700;
  padding: 4px 10px; border-radius: var(--r-full);
  background: var(--surface-container-high);
  color: var(--on-surface-variant); letter-spacing: .02em;
  transition: background var(--transition), color var(--transition);
}
.chip-primary {
  background: rgba(15,168,126,.12); color: var(--primary);
}
.chip-accent {
  background: rgba(245,158,11,.12); color: var(--accent);
}

/* ══════════════════════════════════════════════
   CTA BANNER
══════════════════════════════════════════════ */
.cta-banner {
  background: linear-gradient(135deg, #061a14 0%, #0f4c40 60%, #0d7a63 100%);
  padding-block: var(--s14);
  position: relative; overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(circle at 80% 50%, rgba(15,168,126,.2) 0%, transparent 60%);
}
.cta-banner-inner {
  position: relative; z-index: 1;
  display: flex; align-items: center; justify-content: space-between; gap: var(--s8);
}
.cta-banner-title {
  font-size: var(--text-display-sm); font-weight: 800;
  color: #fff; letter-spacing: -0.02em; line-height: 1.15;
  margin-bottom: var(--s2);
}
.cta-banner-subtitle { font-size: var(--text-body); color: rgba(255,255,255,.75); }
.cta-banner-actions { display: flex; gap: var(--s2); flex-shrink: 0; flex-wrap: wrap; }

/* ══════════════════════════════════════════════
   TESTIMONIALS
══════════════════════════════════════════════ */
.testimonials-section { padding-block: var(--s16); background: var(--surface); }
.testimonials-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s4);
}
.testimonial-card {
  background: var(--surface-container-lowest);
  border-radius: var(--r-lg); padding: var(--s5);
  box-shadow: var(--shadow-ambient);
  transition: transform var(--transition);
  display: flex; flex-direction: column;
}
.testimonial-card:hover { transform: translateY(-4px); }
.testimonial-stars { color: var(--accent-light); font-size: 1rem; margin-bottom: var(--s2); }
.testimonial-text {
  font-size: var(--text-body-sm); color: var(--on-surface-variant);
  line-height: 1.7; flex: 1; margin-bottom: var(--s4); font-style: italic;
}
.testimonial-author { display: flex; align-items: center; gap: 12px; margin-bottom: var(--s2); }
.testimonial-avatar {
  width: 44px; height: 44px; border-radius: 50%; object-fit: cover;
  border: 2px solid var(--surface-container-high);
}
.testimonial-name { font-size: var(--text-body-sm); font-weight: 700; color: var(--on-surface); }
.testimonial-role { font-size: var(--text-label); color: var(--on-surface-muted); }
.testimonial-chip {
  display: inline-block; font-size: 11px; font-weight: 700;
  padding: 3px 10px; border-radius: var(--r-full);
  background: rgba(15,168,126,.1); color: var(--primary);
}

/* ══════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════ */
.footer {
  background: var(--on-surface); color: rgba(255,255,255,.85);
  padding-block: var(--s12);
}
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: var(--s8);
  margin-bottom: var(--s8);
}
.footer-logo {
  display: flex; align-items: center; gap: 10px; margin-bottom: var(--s3);
}
.footer-logo-mark {
  width: 32px; height: 32px; border-radius: var(--r-sm);
  background: var(--gradient-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; color: #fff; font-weight: 800; flex-shrink: 0;
}
.footer-logo-name { font-weight: 800; font-size: 1rem; color: #fff; }
.footer-logo-name span { color: var(--primary-container); }
.footer-desc { font-size: var(--text-body-sm); color: rgba(255,255,255,.5); line-height: 1.7; }
.footer-col-title { font-size: var(--text-body-sm); font-weight: 700; color: #fff; margin-bottom: var(--s2); }
.footer-links li { margin-bottom: 8px; }
.footer-links a { font-size: var(--text-body-sm); color: rgba(255,255,255,.55); transition: color var(--transition); }
.footer-links a:hover { color: var(--primary-container); }
.footer-contact { display: flex; flex-direction: column; gap: 10px; }
.footer-contact-item { display: flex; align-items: flex-start; gap: 10px; font-size: var(--text-body-sm); color: rgba(255,255,255,.55); }
.footer-contact-icon { flex-shrink: 0; margin-top: 2px; }
.footer-bar {
  display: flex; align-items: center; justify-content: space-between;
  border-top: 1px solid rgba(255,255,255,.08); padding-top: var(--s4);
}
.footer-legal { font-size: var(--text-label); color: rgba(255,255,255,.35); }
.footer-badges { display: flex; gap: 8px; }
.footer-badge {
  font-size: 10px; font-weight: 700; letter-spacing: .06em;
  padding: 3px 10px; border-radius: var(--r-full);
  border: 1px solid rgba(15,168,126,.4); color: var(--primary-container);
}

/* ══════════════════════════════════════════════
   FLOATING SIDEBAR
══════════════════════════════════════════════ */
.floating-sidebar {
  position: fixed; right: 0; top: 50%; transform: translateY(-50%);
  display: flex; flex-direction: column; gap: 4px;
  z-index: 800; padding-right: 0;
}
.social-btn {
  display: flex; align-items: center; justify-content: flex-end;
  padding: 0 12px; height: 44px; border-radius: var(--r-md) 0 0 var(--r-md);
  overflow: hidden; transition: all var(--transition);
  box-shadow: var(--shadow-sm); gap: 8px;
}
.social-btn svg { width: 18px; height: 18px; fill: #fff; flex-shrink: 0; }
.social-btn-label {
  font-size: var(--text-label); font-weight: 700; color: #fff;
  white-space: nowrap; max-width: 0; overflow: hidden;
  transition: max-width var(--transition), opacity var(--transition);
  opacity: 0;
}
.social-btn:hover .social-btn-label { max-width: 100px; opacity: 1; }
.social-btn-whatsapp  { background: #25d366; }
.social-btn-facebook  { background: #1877f2; }
.social-btn-linkedin  { background: #0a66c2; }
.social-btn-instagram { background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); }

/* ══════════════════════════════════════════════
   LOGIN MODAL (overlay)
══════════════════════════════════════════════ */
.modal-overlay {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(6,26,20,.7);
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(6px);
  opacity: 0; pointer-events: none; transition: opacity .25s var(--ease);
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal-box {
  background: var(--surface-container-lowest);
  border-radius: var(--r-xl); padding: var(--s7);
  width: 100%; max-width: 440px;
  box-shadow: 0 48px 96px rgba(0,0,0,.35);
  transform: translateY(16px) scale(.97);
  transition: transform .3s var(--ease);
}
.modal-overlay.open .modal-box { transform: translateY(0) scale(1); }
.modal-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  margin-bottom: var(--s5);
}
.modal-close {
  width: 32px; height: 32px; border-radius: var(--r-sm);
  background: var(--surface-container-high);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; color: var(--on-surface-variant);
  transition: background var(--transition);
  flex-shrink: 0;
}
.modal-close:hover { background: var(--surface-container-high); color: var(--on-surface); }

/* ══════════════════════════════════════════════
   SERVICIOS PAGE
══════════════════════════════════════════════ */
.page-hero {
  padding-top: calc(var(--navbar-height) + var(--s12));
  padding-bottom: var(--s12);
  background: linear-gradient(135deg, #061a14 0%, #0f4c40 100%);
  position: relative; overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(circle at 70% 50%, rgba(15,168,126,.25) 0%, transparent 50%);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero-title {
  font-size: var(--text-display-md); font-weight: 800;
  color: #fff; letter-spacing: -0.02em; margin-bottom: var(--s2);
}
.page-hero-subtitle { font-size: var(--text-body-lg); color: rgba(255,255,255,.7); max-width: 560px; }

.servicios-detail-section { padding-block: var(--s16); }
.servicios-detail-section:nth-child(odd) { background: var(--surface); }
.servicios-detail-section:nth-child(even) { background: var(--surface-container-low); }

.servicio-detail {
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--s10); align-items: center;
}
.servicio-detail.reverse { direction: rtl; }
.servicio-detail.reverse > * { direction: ltr; }

.servicio-detail-img {
  border-radius: var(--r-xl); overflow: hidden;
  box-shadow: var(--shadow-hover); height: 380px;
}
.servicio-detail-img img { width: 100%; height: 100%; object-fit: cover; }
.servicio-detail-content {}
.servicio-detail-icon {
  width: 56px; height: 56px; border-radius: var(--r-lg);
  background: var(--gradient-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; margin-bottom: var(--s3);
}
.servicio-detail-title {
  font-size: var(--text-display-sm); font-weight: 800;
  color: var(--on-surface); letter-spacing: -0.02em; margin-bottom: var(--s2);
}
.servicio-detail-desc {
  font-size: var(--text-body); color: var(--on-surface-variant); line-height: 1.75; margin-bottom: var(--s4);
}
.servicio-detail-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: var(--s5); }
.servicio-detail-list li {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: var(--text-body-sm); color: var(--on-surface-variant);
}
.servicio-detail-list li::before {
  content: '✓'; color: var(--primary-container);
  font-weight: 800; flex-shrink: 0; margin-top: 1px;
}

/* ══════════════════════════════════════════════
   CURSOS PAGE
══════════════════════════════════════════════ */
.cursos-filters {
  padding-block: var(--s6);
  background: var(--surface-container-lowest);
  border-bottom: 1px solid var(--surface-container-high);
  position: sticky; top: var(--navbar-height); z-index: 100;
}
.filters-scroll { display: flex; gap: var(--s2); overflow-x: auto; padding-bottom: 4px; }
.filters-scroll::-webkit-scrollbar { height: 4px; }
.filters-scroll::-webkit-scrollbar-track { background: transparent; }
.filters-scroll::-webkit-scrollbar-thumb { background: var(--outline-variant); border-radius: 2px; }

.filter-tab {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: var(--r-full);
  font-size: var(--text-body-sm); font-weight: 600;
  white-space: nowrap; cursor: pointer;
  background: var(--surface-container-low);
  color: var(--on-surface-variant);
  border: 1.5px solid transparent;
  transition: all var(--transition);
}
.filter-tab:hover { border-color: var(--outline-variant); color: var(--on-surface); }
.filter-tab.active {
  background: var(--gradient-primary); color: #fff;
  box-shadow: 0 4px 16px rgba(15,76,64,.2);
}
.filter-tab .count {
  font-size: 11px; padding: 1px 6px; border-radius: var(--r-full);
  background: rgba(255,255,255,.25);
}
.filter-tab:not(.active) .count {
  background: var(--surface-container-high); color: var(--on-surface-muted);
}

.cursos-section { padding-block: var(--s12); background: var(--surface); }
.cursos-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s5);
}
.curso-card {
  background: var(--surface-container-lowest);
  border-radius: var(--r-lg); overflow: hidden;
  box-shadow: var(--shadow-ambient);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex; flex-direction: column;
  cursor: pointer;
}
.curso-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.curso-card.hidden { display: none; }

.curso-thumbnail {
  height: 200px; position: relative; overflow: hidden;
  background: var(--gradient-primary);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.curso-thumbnail-icon { font-size: 4rem; opacity: .5; }
.curso-thumbnail img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-lg); }
.curso-card:hover .curso-thumbnail img { transform: scale(1.06); }
.curso-level-badge {
  position: absolute; top: 12px; left: 12px;
  font-size: 11px; font-weight: 700; letter-spacing: .04em;
  padding: 3px 10px; border-radius: var(--r-full); text-transform: uppercase;
}
.level-basico    { background: #d1fae5; color: #065f46; }
.level-intermedio{ background: #fef3c7; color: #92400e; }
.level-avanzado  { background: #fee2e2; color: #991b1b; }

.curso-body { padding: var(--s4); flex: 1; display: flex; flex-direction: column; }
.curso-category {
  font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--primary-container); margin-bottom: var(--s1);
}
.curso-title {
  font-size: var(--text-title); font-weight: 700; color: var(--on-surface);
  margin-bottom: 8px; line-height: 1.3;
}
.curso-desc {
  font-size: var(--text-body-sm); color: var(--on-surface-variant);
  line-height: 1.6; flex: 1; margin-bottom: var(--s3);
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.curso-meta {
  display: flex; gap: var(--s2); margin-bottom: var(--s3); flex-wrap: wrap;
}
.curso-meta-item {
  display: flex; align-items: center; gap: 5px;
  font-size: var(--text-label); color: var(--on-surface-muted); font-weight: 600;
}
.curso-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: var(--s3); border-top: 1px solid var(--surface-container-high);
  margin-top: auto;
}
.curso-price {
  font-size: 1.2rem; font-weight: 800;
  color: var(--primary); letter-spacing: -0.01em;
}
.curso-price .currency { font-size: .75rem; font-weight: 600; vertical-align: super; margin-right: 1px; }
.curso-price.free { color: var(--primary-container); }

/* Cursos empty state */
.cursos-empty {
  grid-column: 1/-1; text-align: center; padding: var(--s12);
  color: var(--on-surface-muted);
}
.cursos-empty-icon { font-size: 3rem; margin-bottom: var(--s2); }

/* ══════════════════════════════════════════════
   CONTACTO PAGE
══════════════════════════════════════════════ */
.contact-layout {
  display: grid; grid-template-columns: 1fr 420px; gap: var(--s10);
  padding-block: var(--s16);
  align-items: start;
}
.contact-form-wrap {
  background: var(--surface-container-lowest);
  border-radius: var(--r-xl); padding: var(--s7);
  box-shadow: var(--shadow-ambient);
}
.contact-info-wrap { display: flex; flex-direction: column; gap: var(--s4); }
.contact-info-card {
  background: var(--surface-container-lowest);
  border-radius: var(--r-lg); padding: var(--s5);
  box-shadow: var(--shadow-ambient);
  display: flex; align-items: flex-start; gap: var(--s3);
}
.contact-info-icon {
  width: 48px; height: 48px; border-radius: var(--r-md);
  background: var(--gradient-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; flex-shrink: 0;
}
.contact-info-title { font-size: var(--text-body-sm); font-weight: 700; color: var(--on-surface); margin-bottom: 4px; }
.contact-info-value { font-size: var(--text-body-sm); color: var(--on-surface-variant); line-height: 1.6; }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s3); }
.form-textarea { resize: vertical; min-height: 120px; }
.form-select {
  width: 100%; padding: 11px 14px; border-radius: var(--r-md);
  background: var(--surface-container-low);
  border: 1.5px solid transparent;
  color: var(--on-surface); appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236a8480' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
  padding-right: 36px; transition: border-color var(--transition);
}
.form-select:focus { border-color: var(--primary-container); }

/* Process timeline */
.timeline { display: flex; flex-direction: column; gap: var(--s4); padding-block: var(--s12); }
.timeline-item { display: flex; align-items: flex-start; gap: var(--s4); }
.timeline-step {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--gradient-primary); color: #fff;
  font-weight: 800; font-size: 1rem;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.timeline-content {}
.timeline-title { font-size: var(--text-body); font-weight: 700; color: var(--on-surface); margin-bottom: 4px; }
.timeline-desc { font-size: var(--text-body-sm); color: var(--on-surface-variant); line-height: 1.6; }

/* ══════════════════════════════════════════════
   ANIMATE ON SCROLL
══════════════════════════════════════════════ */
.animate-on-scroll {
  opacity: 0; transform: translateY(24px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.animate-on-scroll.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .1s; }
.delay-2 { transition-delay: .2s; }
.delay-3 { transition-delay: .3s; }
.delay-4 { transition-delay: .4s; }

/* ══════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════ */
@media (max-width: 1100px) {
  :root { --safe-zone: var(--safe-zone-tablet); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--s6); }
  .cta-banner-inner { flex-direction: column; text-align: center; }
  .hero-content { grid-template-columns: 1fr; gap: var(--s8); }
  .hero-login-card { max-width: 500px; margin-inline: auto; }
  .servicio-detail, .servicio-detail.reverse { grid-template-columns: 1fr; direction: ltr; }
  .contact-layout { grid-template-columns: 1fr; }
  .cursos-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --safe-zone: var(--safe-zone-mobile); }
  .nav-links {
    display: none; flex-direction: column; gap: 0;
    position: fixed; inset: 0; top: var(--navbar-height);
    background: var(--surface-container-lowest); z-index: 850;
    padding: var(--s4); overflow-y: auto;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 16px; border-radius: var(--r-md); font-size: var(--text-body); }
  .btn-sistema { display: none; }
  .btn-sistema-mobile { display: flex !important; }
  .nav-toggle { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--s5); }
  .cursos-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .form-grid-2 { grid-template-columns: 1fr; }
  .hero-content { padding-top: calc(var(--navbar-height) + var(--s8)); }
}

@media (max-width: 480px) {
  .trust-inner { flex-direction: column; align-items: flex-start; gap: var(--s2); }
  .hero-actions { flex-direction: column; }
  .cta-banner-actions { flex-direction: column; width: 100%; }
}

/* ══════════════════════════════════════════════
   PAGE HERO — shared inner elements
══════════════════════════════════════════════ */
.page-hero-bg {
  position: absolute; inset: 0;
  background-image: radial-gradient(circle at 20% 80%, rgba(15,168,126,.18) 0%, transparent 50%),
                    radial-gradient(circle at 80% 20%, rgba(199,123,10,.12) 0%, transparent 50%);
  pointer-events: none;
}
.page-hero-content {
  text-align: center; max-width: 720px; margin-inline: auto;
  position: relative; z-index: 1;
}
.page-hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent-light);
  background: rgba(199,123,10,.15); border: 1px solid rgba(199,123,10,.3);
  padding: 5px 14px; border-radius: var(--r-full); margin-bottom: var(--s3);
}
.page-hero-content h1 {
  font-size: var(--text-display-md); font-weight: 800;
  color: #fff; letter-spacing: -0.025em; line-height: 1.15; margin-bottom: var(--s3);
}
.page-hero-content p {
  font-size: var(--text-body-lg); color: rgba(255,255,255,.7); max-width: 540px; margin-inline: auto;
}

/* Cursos hero variant */
.page-hero--cursos { padding-bottom: var(--s16); }
.courses-hero-stats {
  display: flex; align-items: center; justify-content: center; gap: var(--s8);
  margin-top: var(--s8); flex-wrap: wrap;
}
.ch-stat { text-align: center; }
.ch-stat strong { display: block; font-size: 2rem; font-weight: 800; color: #fff; letter-spacing: -0.02em; }
.ch-stat span { font-size: var(--text-body-sm); color: rgba(255,255,255,.6); }

/* ══════════════════════════════════════════════
   SERVICIOS DETAIL — new layout
══════════════════════════════════════════════ */
.service-detail { padding-block: var(--s14); }
.service-detail--alt { background: var(--surface-container-low); }

.service-detail-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--s12); align-items: center;
}
.service-detail-grid--reverse { direction: rtl; }
.service-detail-grid--reverse > * { direction: ltr; }

.service-icon-lg {
  width: 64px; height: 64px; border-radius: var(--r-lg);
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; margin-bottom: var(--s3); box-shadow: 0 8px 24px rgba(0,0,0,.2);
}
.service-badge {
  display: inline-flex; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent); background: rgba(199,123,10,.1); border: 1px solid rgba(199,123,10,.25);
  padding: 3px 12px; border-radius: var(--r-full); margin-bottom: var(--s2);
}
.service-detail-content h2 {
  font-size: var(--text-display-sm); font-weight: 800;
  color: var(--on-surface); letter-spacing: -0.02em; margin-bottom: var(--s2);
}
.service-lead {
  font-size: var(--text-body-lg); color: var(--on-surface-variant); line-height: 1.7;
  margin-bottom: var(--s4);
}
.service-checklist {
  list-style: none; display: flex; flex-direction: column; gap: 10px; margin-bottom: var(--s4);
}
.service-checklist li {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: var(--text-body-sm); color: var(--on-surface-variant); line-height: 1.5;
}
.service-checklist li::before {
  content: '✓'; color: var(--primary-container);
  font-weight: 900; flex-shrink: 0; margin-top: 1px;
}
.service-tags { display: flex; flex-wrap: wrap; gap: var(--s1); margin-bottom: var(--s4); }
.tag {
  font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: var(--r-full);
  background: var(--surface-container-high); color: var(--on-surface-variant);
  border: 1px solid var(--outline-variant);
}

/* Service visual cards */
.service-visual-card {
  background: var(--surface-container-lowest);
  border-radius: var(--r-xl); padding: var(--s6);
  box-shadow: var(--shadow-hover);
}
.visual-steps { display: flex; flex-direction: column; gap: var(--s4); }
.vstep { display: flex; align-items: flex-start; gap: var(--s3); }
.vstep-num {
  font-size: 12px; font-weight: 900; letter-spacing: .04em;
  background: var(--gradient-primary); color: #fff;
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.vstep-text strong { display: block; font-size: var(--text-body-sm); font-weight: 700; color: var(--on-surface); margin-bottom: 2px; }
.vstep-text span { font-size: 13px; color: var(--on-surface-muted); }

.tools-grid { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: var(--s4); }
.tool-chip {
  padding: 8px 14px; border-radius: var(--r-md);
  background: var(--surface-container-low); color: var(--on-surface-variant);
  font-size: var(--text-body-sm); font-weight: 600; border: 1.5px solid var(--outline-variant);
}
.tools-note { font-size: 13px; color: var(--on-surface-muted); line-height: 1.6; }

.chapter-list { display: flex; flex-direction: column; gap: 10px; }
.chapter-item {
  display: flex; align-items: center; gap: var(--s3); padding: 12px 14px;
  background: var(--surface-container-low); border-radius: var(--r-md);
  border: 1px solid var(--outline-variant);
}
.ch-num { font-size: 11px; font-weight: 800; color: var(--primary); flex-shrink: 0; }
.ch-name { font-size: var(--text-body-sm); font-weight: 600; color: var(--on-surface); }

/* Turnitin similarity ring */
.similarity-display { display: flex; flex-direction: column; align-items: center; gap: var(--s3); }
.similarity-ring { position: relative; width: 140px; height: 140px; }
.similarity-ring svg { width: 100%; height: 100%; }
.sim-value {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.sim-value strong { font-size: 1.6rem; font-weight: 800; color: #10b981; }
.sim-value span { font-size: 11px; color: var(--on-surface-muted); }
.sim-label { font-size: 13px; color: var(--on-surface-muted); text-align: center; line-height: 1.5; max-width: 200px; }

/* Observation flow */
.obs-flow {
  display: flex; align-items: center; justify-content: center;
  gap: var(--s2); flex-wrap: wrap;
}
.obs-step {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  padding: var(--s3); border-radius: var(--r-lg); width: 110px; text-align: center;
  font-size: 12px; font-weight: 600; color: var(--on-surface);
}
.obs-step--in   { background: #fef3c7; }
.obs-step--proc { background: var(--surface-container-low); }
.obs-step--out  { background: #d1fae5; }
.obs-icon { font-size: 1.8rem; }
.obs-arrow { font-size: 1.4rem; color: var(--on-surface-muted); }

/* Slides preview */
.slide-preview { display: flex; flex-direction: column; gap: 10px; }
.slide {
  border-radius: var(--r-md); padding: 12px 14px;
  background: var(--surface-container-low); border: 1px solid var(--outline-variant);
  display: flex; gap: 10px; align-items: flex-start; min-height: 60px;
}
.slide--title { align-items: center; }
.slide-bar {
  width: 40%; height: 10px; border-radius: 5px;
  background: var(--gradient-primary); flex-shrink: 0;
}
.slide-bar.short { width: 25%; }
.slide-lines { display: flex; flex-direction: column; gap: 6px; flex: 1; }
.slide-lines div { height: 8px; border-radius: 4px; background: var(--outline-variant); }
.slide-lines div.short { width: 60%; }
.slide-bullets { display: flex; flex-direction: column; gap: 6px; flex: 1; }
.slide-bullets div { height: 6px; border-radius: 3px; background: var(--outline-variant); }
.slide-chart { display: flex; align-items: flex-end; gap: 8px; flex: 1; height: 48px; }
.slide-chart div { flex: 1; border-radius: 3px 3px 0 0; background: var(--gradient-primary); }

/* ══════════════════════════════════════════════
   CURSOS PAGE — new card layout
══════════════════════════════════════════════ */
.filter-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: var(--s4); gap: var(--s4);
  position: sticky; top: var(--navbar-height); z-index: 100;
  background: var(--surface); border-bottom: 1px solid var(--surface-container-high);
  margin-bottom: var(--s8);
}
.filter-bar .filter-tabs { display: flex; gap: var(--s2); flex-wrap: wrap; }
.filter-count { font-size: var(--text-body-sm); font-weight: 600; color: var(--on-surface-muted); white-space: nowrap; }

/* Override: new curso card structure */
.curso-thumb {
  height: 180px; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.curso-thumb-icon { font-size: 3.5rem; opacity: .5; }
.curso-thumb-cat {
  position: absolute; bottom: 10px; left: 12px;
  font-size: 10px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase;
  color: #fff; background: rgba(0,0,0,.35); backdrop-filter: blur(4px);
  padding: 3px 10px; border-radius: var(--r-full);
}
.curso-thumb-badge {
  position: absolute; top: 10px; right: 10px;
  font-size: 10px; font-weight: 800; letter-spacing: .04em;
  background: var(--gradient-accent); color: #fff;
  padding: 3px 10px; border-radius: var(--r-full);
}
.curso-body { padding: var(--s4); flex: 1; display: flex; flex-direction: column; }
.curso-body h3 {
  font-size: var(--text-title); font-weight: 700; color: var(--on-surface);
  margin-bottom: 8px; line-height: 1.35;
}
.curso-body p { font-size: var(--text-body-sm); color: var(--on-surface-variant); line-height: 1.6; margin-bottom: var(--s3); flex: 1; }
.curso-meta { display: flex; gap: 6px; margin-bottom: var(--s2); flex-wrap: wrap; }
.meta-item { font-size: 11px; color: var(--on-surface-muted); font-weight: 600; }
.curso-topics { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 0; }
.curso-topics span {
  font-size: 11px; font-weight: 600; padding: 3px 9px; border-radius: var(--r-full);
  background: var(--surface-container-high); color: var(--on-surface-variant);
}
.curso-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--s3) var(--s4); border-top: 1px solid var(--surface-container-high);
  margin-top: auto;
}
.curso-precio { display: flex; flex-direction: column; }
.precio-label { font-size: 10px; font-weight: 600; color: var(--on-surface-muted); }
.curso-precio strong { font-size: 1.15rem; font-weight: 800; color: var(--primary); }

.no-results {
  text-align: center; padding: var(--s12); color: var(--on-surface-muted);
}
.no-results-icon { font-size: 3rem; margin-bottom: var(--s2); }
.no-results p { font-size: var(--text-body); }

/* Pack section */
.pack-section { padding-block: var(--s16); background: var(--surface-container-low); }
.packs-grid {
  display: grid; grid-template-columns: repeat(3,1fr); gap: var(--s5);
}
.pack-card {
  background: var(--surface-container-lowest);
  border-radius: var(--r-xl); overflow: hidden;
  box-shadow: var(--shadow-ambient);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
}
.pack-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.pack-card--featured {
  ring: 2px solid var(--primary-container);
  box-shadow: 0 0 0 3px var(--primary-container), var(--shadow-hover);
}
.pack-badge-top {
  position: absolute; top: 16px; right: 16px;
  font-size: 10px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase;
  background: var(--gradient-accent); color: #fff;
  padding: 4px 12px; border-radius: var(--r-full);
}
.pack-header { padding: var(--s6); color: #fff; text-align: center; }
.pack-icon { font-size: 2.5rem; margin-bottom: var(--s2); }
.pack-header h3 { font-size: var(--text-headline); font-weight: 800; margin-bottom: var(--s1); }
.pack-savings {
  display: inline-block; font-size: 12px; font-weight: 700;
  background: rgba(255,255,255,.2); padding: 3px 12px; border-radius: var(--r-full);
}
.pack-body { padding: var(--s5); }
.pack-body ul { list-style: none; display: flex; flex-direction: column; gap: 10px; margin-bottom: var(--s5); }
.pack-body ul li { font-size: var(--text-body-sm); color: var(--on-surface-variant); }
.pack-precio { display: flex; align-items: baseline; gap: var(--s2); margin-bottom: var(--s4); }
.pack-original { font-size: var(--text-body); color: var(--on-surface-muted); text-decoration: line-through; }
.pack-precio strong { font-size: 1.6rem; font-weight: 800; color: var(--primary); }

/* ══════════════════════════════════════════════
   CONTACTO PAGE — new layout
══════════════════════════════════════════════ */
.contact-cards-section { padding-block: var(--s8); background: var(--surface); }
.contact-cards-row {
  display: grid; grid-template-columns: repeat(4,1fr); gap: var(--s4);
}
.contact-card {
  background: var(--surface-container-lowest);
  border-radius: var(--r-lg); padding: var(--s4);
  box-shadow: var(--shadow-sm);
  display: flex; align-items: center; gap: var(--s3);
  border: 1.5px solid transparent;
  transition: all var(--transition); text-decoration: none; color: inherit;
}
.contact-card:hover { border-color: var(--outline-variant); transform: translateY(-2px); box-shadow: var(--shadow-ambient); }
.contact-card--wa { background: #f0fdf4; border-color: #86efac; }
.contact-card--wa:hover { background: #dcfce7; }
.contact-card--info { cursor: default; }
.contact-card--info:hover { transform: none; }
.cc-icon {
  width: 48px; height: 48px; border-radius: var(--r-md); flex-shrink: 0;
  background: var(--gradient-primary); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 22px;
}
.contact-card--wa .cc-icon { background: #25D366; }
.cc-icon--mail { background: linear-gradient(135deg,#1e3a8a,#3b82f6) !important; }
.cc-icon--loc  { background: linear-gradient(135deg,#7c3aed,#a855f7) !important; }
.cc-icon--time { background: linear-gradient(135deg,#c77b0a,#f59e0b) !important; }
.cc-content { flex: 1; min-width: 0; }
.cc-content h3 { font-size: var(--text-body-sm); font-weight: 700; color: var(--on-surface); margin-bottom: 2px; }
.cc-content p  { font-size: 12px; color: var(--on-surface-muted); margin-bottom: 2px; }
.cc-content strong { font-size: 13px; color: var(--on-surface); font-weight: 700; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cc-arrow { font-size: 1.2rem; color: var(--on-surface-muted); flex-shrink: 0; }

/* Main contact grid */
.contact-main-section { padding-block: var(--s10); background: var(--surface-container-low); }
.contact-main-grid {
  display: grid; grid-template-columns: 1fr 380px; gap: var(--s8); align-items: start;
}
.contact-form-wrapper {
  background: var(--surface-container-lowest);
  border-radius: var(--r-xl); padding: var(--s8);
  box-shadow: var(--shadow-ambient);
}
.contact-form-wrapper h2 {
  font-size: var(--text-display-sm); font-weight: 800;
  color: var(--on-surface); letter-spacing: -0.02em; margin-bottom: var(--s1);
}
.contact-form-sub { font-size: var(--text-body-sm); color: var(--on-surface-muted); margin-bottom: var(--s6); }
.contact-form { display: flex; flex-direction: column; gap: var(--s4); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s3); }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: var(--text-body-sm); font-weight: 600; color: var(--on-surface); }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 11px 14px; border-radius: var(--r-md);
  background: var(--surface-container-low);
  border: 1.5px solid transparent;
  color: var(--on-surface); font-family: var(--font-family); font-size: var(--text-body-sm);
  transition: border-color var(--transition), background var(--transition);
  width: 100%;
}
.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236a8480' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
  background-size: 12px; padding-right: 36px;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none; border-color: var(--primary-container);
  background: var(--surface-container-lowest);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group--check { flex-direction: row; align-items: flex-start; gap: var(--s2); }
.checkbox-label { display: flex; align-items: flex-start; gap: 10px; cursor: pointer; font-size: var(--text-body-sm); color: var(--on-surface-variant); line-height: 1.5; }
.checkbox-label input[type="checkbox"] { width: 16px; height: 16px; flex-shrink: 0; margin-top: 2px; accent-color: var(--primary); cursor: pointer; }
.contact-form-error {
  padding: 10px 14px; border-radius: var(--r-md);
  background: #fee2e2; color: #991b1b;
  font-size: var(--text-body-sm); font-weight: 600;
}

/* Sidebar */
.contact-sidebar { display: flex; flex-direction: column; gap: var(--s4); }
.contact-sidebar-card {
  background: var(--surface-container-lowest);
  border-radius: var(--r-xl); padding: var(--s5);
  box-shadow: var(--shadow-ambient);
}
.contact-sidebar-card h3 {
  font-size: var(--text-title); font-weight: 700; color: var(--on-surface); margin-bottom: var(--s4);
}
.contact-sidebar-card--wa { background: linear-gradient(135deg,#0f4c40,#0fa87e); color: #fff; text-align: center; }
.contact-sidebar-card--wa h3,
.contact-sidebar-card--wa p { color: rgba(255,255,255,.9); }
.contact-sidebar-card--wa p { font-size: var(--text-body-sm); margin-bottom: var(--s4); }
.wa-sidebar-icon { font-size: 2.5rem; margin-bottom: var(--s2); color: #fff; }

/* FAQ */
.faq-list { display: flex; flex-direction: column; gap: 2px; }
.faq-item { border-radius: var(--r-md); overflow: hidden; border: 1px solid var(--surface-container-high); }
.faq-q {
  width: 100%; text-align: left; padding: 13px 16px;
  background: var(--surface-container-low);
  font-size: var(--text-body-sm); font-weight: 600; color: var(--on-surface);
  cursor: pointer; display: flex; align-items: center; justify-content: space-between;
  border: none; gap: 10px; transition: background var(--transition);
}
.faq-q::after { content: '+'; font-size: 1.2rem; font-weight: 300; flex-shrink: 0; transition: transform var(--transition); color: var(--primary); }
.faq-item.open .faq-q::after { content: '−'; }
.faq-q:hover { background: var(--surface-container-high); }
.faq-a {
  display: none; padding: 12px 16px;
  font-size: var(--text-body-sm); color: var(--on-surface-variant); line-height: 1.65;
  background: var(--surface-container-lowest); border-top: 1px solid var(--surface-container-high);
}
.faq-item.open .faq-a { display: block; }

/* ══════════════════════════════════════════════
   TIMELINE — contact page
══════════════════════════════════════════════ */
.timeline-section { padding-block: var(--s14); background: var(--surface); }
.timeline { display: flex; flex-direction: column; gap: 0; position: relative; max-width: 720px; margin-inline: auto; }
.timeline-item { display: flex; align-items: flex-start; gap: var(--s5); padding-bottom: var(--s8); position: relative; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-connector {
  position: absolute; left: 19px; top: 40px; bottom: -16px;
  width: 2px; background: linear-gradient(to bottom, var(--primary-mid), var(--outline-variant));
}
.timeline-dot {
  width: 40px; height: 40px; border-radius: 50%; flex-shrink: 0;
  background: var(--gradient-primary); color: #fff;
  font-weight: 800; font-size: 13px;
  display: flex; align-items: center; justify-content: center;
  position: relative; z-index: 1; box-shadow: 0 4px 16px rgba(15,76,64,.25);
}
.timeline-content { padding-top: 6px; }
.timeline-content h3 {
  font-size: var(--text-title); font-weight: 700; color: var(--on-surface); margin-bottom: 6px;
}
.timeline-content p {
  font-size: var(--text-body-sm); color: var(--on-surface-variant); line-height: 1.7; margin-bottom: var(--s2);
}
.timeline-tag {
  display: inline-flex; font-size: 12px; font-weight: 600;
  padding: 4px 12px; border-radius: var(--r-full);
  background: var(--surface-container-high); color: var(--primary);
  border: 1px solid var(--outline-variant);
}

/* ══════════════════════════════════════════════
   EXTRA BUTTON VARIANTS
══════════════════════════════════════════════ */
.btn-lg { padding: 15px 32px; font-size: var(--text-body); }
.btn-whatsapp {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 24px; border-radius: var(--r-full);
  background: #25D366; color: #fff; font-weight: 700;
  text-decoration: none; font-size: var(--text-body-sm);
  transition: all var(--transition);
}
.btn-whatsapp:hover { background: #128C7E; transform: translateY(-2px); }
.btn-outline-white {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 24px; border-radius: var(--r-full);
  border: 2px solid rgba(255,255,255,.4); color: #fff;
  font-weight: 700; font-size: var(--text-body-sm); text-decoration: none;
  transition: all var(--transition);
}
.btn-outline-white:hover { border-color: #fff; background: rgba(255,255,255,.1); }

/* ══════════════════════════════════════════════
   RESPONSIVE — additional rules
══════════════════════════════════════════════ */
@media (max-width: 1100px) {
  .service-detail-grid,
  .service-detail-grid--reverse { grid-template-columns: 1fr; direction: ltr; }
  .contact-main-grid { grid-template-columns: 1fr; }
  .contact-cards-row { grid-template-columns: 1fr 1fr; }
  .packs-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .contact-cards-row { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .packs-grid { grid-template-columns: 1fr; }
  .pack-card--featured { order: -1; }
  .timeline-item { gap: var(--s3); }
  .courses-hero-stats { gap: var(--s5); }
  .filter-bar { flex-direction: column; align-items: flex-start; gap: var(--s2); position: static; }
  .filter-bar .filter-tabs { overflow-x: auto; width: 100%; flex-wrap: nowrap; padding-bottom: 4px; }
}