/* ============================================================
   SERVICAN – Estilos Principales v2
   ============================================================ */

:root {
  --primary: #1a3c5e;
  --primary-light: #2563a8;
  --green: #00c48c;
  --green-dark: #00a876;
  --accent: #e67e22;
  --success: #00c48c;
  --danger: #e74c3c;
  --warning: #f39c12;
  --bg: #f8fafc;
  --card-bg: #ffffff;
  --text: #1a1f36;
  --text-muted: #6b7280;
  --border: #e5eaf0;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 2px 12px rgba(0,0,0,.06);
  --shadow-md: 0 8px 32px rgba(0,0,0,.10);
  --shadow-lg: 0 20px 60px rgba(0,0,0,.14);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
}

/* ── Navbar ── */
.navbar {
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  box-shadow: 0 1px 0 var(--border);
  position: sticky;
  top: 0;
  z-index: 200;
}
.navbar-brand {
  color: var(--primary);
  font-size: 20px;
  font-weight: 700;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}
.navbar-nav { display: flex; gap: 2px; list-style: none; align-items: center; }
.navbar-nav a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  transition: background .15s, color .15s;
}
.navbar-nav a:hover { background: var(--bg); color: var(--text); }
.navbar-nav .btn-nav-cta {
  background: var(--primary);
  color: #fff !important;
  padding: 8px 18px;
  border-radius: 8px;
  margin-left: 6px;
  font-weight: 600;
}
.navbar-nav .btn-nav-cta:hover { background: var(--primary-light) !important; }

/* ── Landing Hero ── */
.landing-hero {
  position: relative;
  overflow: hidden;
  padding: 100px 20px 80px;
  text-align: center;
  background: #fff;
}
.landing-hero::before {
  content: '';
  position: absolute;
  inset: -40px;
  background:
    radial-gradient(ellipse 70% 55% at 50% -10%, rgba(0,196,140,.22) 0%, transparent 55%),
    radial-gradient(ellipse 50% 45% at 90% 30%,  rgba(37,99,168,.18) 0%, transparent 50%),
    radial-gradient(ellipse 45% 40% at 10% 70%,  rgba(139,92,246,.14) 0%, transparent 50%),
    radial-gradient(ellipse 40% 35% at 75% 85%,  rgba(230,126,34,.12) 0%, transparent 50%);
  pointer-events: none;
  animation: hero-glow 8s ease-in-out infinite alternate;
}
@keyframes hero-glow {
  0%   { opacity: .85; transform: scale(1); }
  100% { opacity: 1;   transform: scale(1.04); }
}
.hero-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0,196,140,.1);
  color: #00a876;
  border: 1px solid rgba(0,196,140,.25);
  border-radius: 20px;
  padding: 5px 14px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
}
.hero-chip span { width: 7px; height: 7px; background: var(--green); border-radius: 50%; }
.landing-hero h1 {
  font-size: clamp(32px, 5vw, 58px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--text);
  max-width: 720px;
  margin: 0 auto 20px;
  letter-spacing: -1px;
}
.landing-hero h1 em {
  font-style: normal;
  color: var(--green);
}
.landing-hero p {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 36px;
  line-height: 1.7;
}
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 60px; }
.hero-trust {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}
.hero-trust-checks { display: flex; gap: 16px; }
.hero-trust-checks span { display: flex; align-items: center; gap: 5px; }
.hero-trust-checks span::before { content: '✓'; color: var(--green); font-weight: 700; }

/* ── Mockup ── */
.hero-mockup {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}
.hero-mockup-inner {
  background: #fff;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  padding: 20px;
}
.hero-mockup-bar {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
}
.hero-mockup-bar span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--border);
}
.hero-mockup-bar span:nth-child(1) { background: #ff5f57; }
.hero-mockup-bar span:nth-child(2) { background: #febc2e; }
.hero-mockup-bar span:nth-child(3) { background: #28c840; }

/* ── Sección landing genérica ── */
.landing-section { padding: 80px 20px; position: relative; overflow: hidden; }
.landing-section-alt {
  background: #fff;
  position: relative;
  overflow: hidden;
}
.landing-section-alt::before {
  content: '';
  position: absolute;
  inset: -60px;
  background:
    radial-gradient(ellipse 60% 50% at 0% 50%,   rgba(0,196,140,.10) 0%, transparent 55%),
    radial-gradient(ellipse 50% 45% at 100% 50%,  rgba(37,99,168,.09) 0%, transparent 55%);
  pointer-events: none;
}
.landing-section:nth-of-type(odd)::before {
  content: '';
  position: absolute;
  inset: -60px;
  background:
    radial-gradient(ellipse 55% 50% at 95% 20%,  rgba(139,92,246,.08) 0%, transparent 55%),
    radial-gradient(ellipse 50% 40% at 5%  80%,  rgba(0,196,140,.07) 0%, transparent 55%);
  pointer-events: none;
}
.section-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(37,99,168,.08);
  color: var(--primary-light);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .5px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(26px, 3.5vw, 40px);
  font-weight: 800;
  color: var(--text);
  letter-spacing: -.5px;
  margin-bottom: 12px;
}
.section-sub {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.7;
}
.section-header { text-align: center; margin-bottom: 48px; }
.section-header .section-sub { margin: 0 auto; }

/* ── Stats ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 24px;
  max-width: 700px;
  margin: 0 auto;
}
.stat-box { text-align: center; }
.stat-number {
  font-size: 44px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  letter-spacing: -2px;
}
.stat-label { font-size: 14px; color: var(--text-muted); margin-top: 6px; }

/* ── Feature cards ── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  max-width: 960px;
  margin: 0 auto;
}
.feature-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: box-shadow .2s, transform .2s;
}
.feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 16px;
}
.feature-card h3 { font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.feature-card p  { font-size: 14px; color: var(--text-muted); line-height: 1.65; }

/* ── Pasos / Proceso ── */
.pasos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0;
  max-width: 960px;
  margin: 0 auto;
  position: relative;
}
.paso-item { text-align: center; padding: 24px 20px; position: relative; }
.paso-item:not(:last-child)::after {
  content: '→';
  position: absolute;
  right: -10px;
  top: 42px;
  font-size: 20px;
  color: var(--border);
}
.paso-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  box-shadow: 0 4px 16px rgba(0,196,140,.3);
}
.paso-title { font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.paso-desc  { font-size: 13px; color: var(--text-muted); }

/* ── Testimonios ── */
.testimonios-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  max-width: 960px;
  margin: 0 auto;
}
.testimonio-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}
.testimonio-stars { color: #f59e0b; font-size: 14px; margin-bottom: 12px; }
.testimonio-texto { font-size: 14px; color: var(--text); line-height: 1.7; margin-bottom: 20px; font-style: italic; }
.testimonio-autor { display: flex; align-items: center; gap: 12px; }
.testimonio-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 16px; flex-shrink: 0;
}
.testimonio-nombre { font-size: 14px; font-weight: 700; color: var(--text); }
.testimonio-rol    { font-size: 12px; color: var(--text-muted); }

/* ── CTA Final ── */
.landing-cta-final {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  padding: 80px 20px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.landing-cta-final::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 60% at 80% 50%, rgba(0,196,140,.2), transparent);
  pointer-events: none;
}
.landing-cta-final h2 { font-size: clamp(26px, 4vw, 42px); font-weight: 800; margin-bottom: 16px; letter-spacing: -.5px; }
.landing-cta-final p  { font-size: 17px; opacity: .85; max-width: 480px; margin: 0 auto 36px; }

/* ── Footer landing ── */
.footer-landing {
  background: #0f172a;
  color: rgba(255,255,255,.5);
  padding: 40px 20px;
  text-align: center;
  font-size: 13px;
}
.footer-landing a { color: rgba(255,255,255,.6); text-decoration: none; }
.footer-landing a:hover { color: #fff; }
.footer-links { display: flex; justify-content: center; gap: 24px; margin-bottom: 16px; flex-wrap: wrap; }

/* ── Footer app (páginas internas) ── */
.footer {
  background: var(--primary);
  color: rgba(255,255,255,.7);
  text-align: center;
  padding: 28px 20px;
  margin-top: 60px;
  font-size: 13px;
}
.footer a { color: rgba(255,255,255,.8); text-decoration: none; }

/* ── Container ── */
.container    { max-width: 960px; margin: 0 auto; padding: 0 20px; }
.container-sm { max-width: 660px; margin: 0 auto; padding: 0 20px; }
.container-lg { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* ── Card (app) ── */
.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  margin-bottom: 24px;
  border: 1px solid var(--border);
}
.card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

/* ── Forms ── */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 13px; color: var(--text); }
.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  color: var(--text);
  transition: border-color .15s, box-shadow .15s;
  background: #fff;
  font-family: inherit;
}
.form-control:focus {
  outline: none;
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(37,99,168,.12);
}
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23666' d='M6 8L0 0h12z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; }
.form-hint  { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.form-check { display: flex; align-items: flex-start; gap: 10px; }
.form-check input { margin-top: 3px; width: 16px; height: 16px; cursor: pointer; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 11px 22px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: background .15s, transform .1s, box-shadow .15s;
  line-height: 1;
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-light); box-shadow: 0 4px 16px rgba(26,60,94,.25); }
.btn-green   { background: var(--green); color: #fff; }
.btn-green:hover { background: var(--green-dark); box-shadow: 0 4px 16px rgba(0,196,140,.3); }
.btn-accent  { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #d35400; }
.btn-danger  { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #c0392b; }
.btn-outline { background: transparent; border: 1.5px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: rgba(26,60,94,.04); }
.btn-outline-white { background: rgba(255,255,255,.15); border: 1.5px solid rgba(255,255,255,.4); color: #fff; backdrop-filter: blur(4px); }
.btn-outline-white:hover { background: rgba(255,255,255,.25); }
.btn-sm  { padding: 6px 14px; font-size: 12px; border-radius: 7px; }
.btn-lg  { padding: 14px 30px; font-size: 16px; border-radius: 12px; }
.btn-xl  { padding: 16px 36px; font-size: 17px; border-radius: 12px; }
.btn-block { display: flex; width: 100%; justify-content: center; }

/* ── Badges ── */
.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.badge-success { background: #d1fae5; color: #065f46; }
.badge-danger  { background: #fee2e2; color: #991b1b; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-primary { background: #dbeafe; color: #1e40af; }

/* ── Alerts ── */
.alert { padding: 13px 18px; border-radius: 9px; margin-bottom: 16px; font-size: 14px; }
.alert-success { background: #d1fae5; color: #065f46; border-left: 4px solid var(--green); }
.alert-danger  { background: #fee2e2; color: #991b1b; border-left: 4px solid var(--danger); }
.alert-warning { background: #fef3c7; color: #92400e; border-left: 4px solid var(--warning); }
.alert-info    { background: #dbeafe; color: #1e40af; border-left: 4px solid var(--primary-light); }

/* ── Score counter ── */
.score-display {
  display: flex;
  justify-content: space-around;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 24px;
  position: sticky;
  top: 68px;
  z-index: 50;
  box-shadow: 0 4px 20px rgba(26,60,94,.2);
}
.score-item  { text-align: center; }
.score-num   { font-size: 30px; font-weight: 800; }
.score-label { font-size: 10px; opacity: .75; text-transform: uppercase; letter-spacing: 1px; }

/* ── Pregunta ── */
.pregunta-card {
  background: var(--card-bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 14px;
  transition: border-color .2s;
}
.pregunta-card.answered { border-color: var(--green); }
.pregunta-card.critical { border-left: 4px solid var(--accent); }
.pregunta-num  { font-size: 11px; color: var(--text-muted); margin-bottom: 4px; }
.pregunta-text { font-weight: 700; margin-bottom: 14px; font-size: 15px; }
.opcion-list   { display: flex; flex-direction: column; gap: 8px; }
.opcion-item   {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: 9px;
  cursor: pointer;
  transition: all .15s;
}
.opcion-item:hover    { border-color: var(--primary-light); background: #f0f7ff; }
.opcion-item.selected { border-color: var(--primary); background: #eff6ff; }
.opcion-item input    { cursor: pointer; }
.opcion-valor { margin-left: auto; font-size: 11px; background: var(--primary); color: #fff; padding: 2px 8px; border-radius: 10px; font-weight: 600; }

/* ── Steps ── */
.steps { display: flex; align-items: center; justify-content: center; gap: 0; margin-bottom: 28px; }
.step  { display: flex; align-items: center; gap: 8px; }
.step-num { width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 13px; background: var(--border); color: var(--text-muted); }
.step.active .step-num { background: var(--primary); color: #fff; }
.step.done .step-num   { background: var(--green); color: #fff; }
.step-label { font-size: 13px; color: var(--text-muted); font-weight: 500; }
.step.active .step-label { color: var(--primary); font-weight: 700; }
.step-line { width: 50px; height: 2px; background: var(--border); margin: 0 4px; }

/* ── Photo upload ── */
.foto-upload-area {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 30px;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, background .2s;
}
.foto-upload-area:hover { border-color: var(--primary-light); background: #f8fbff; }
.foto-preview { width: 120px; height: 120px; border-radius: 50%; object-fit: cover; border: 3px solid var(--primary); margin: 10px auto; display: block; }

/* ── Tipo selector ── */
.tipo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 24px; }
.tipo-card {
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  cursor: pointer;
  transition: all .2s;
  background: #fff;
}
.tipo-card:hover  { border-color: var(--primary-light); box-shadow: var(--shadow-md); }
.tipo-card.active { border-color: var(--green); background: #f0fdf8; }
.tipo-card .tipo-icon { font-size: 44px; margin-bottom: 12px; }
.tipo-card h3 { color: var(--primary); font-size: 16px; margin-bottom: 6px; font-weight: 700; }
.tipo-card p  { font-size: 13px; color: var(--text-muted); }

/* ── Payment ── */
.pago-resumen { background: var(--bg); border-radius: var(--radius); padding: 18px; margin-bottom: 18px; border: 1px solid var(--border); }
.pago-row { display: flex; justify-content: space-between; padding: 6px 0; font-size: 14px; }
.pago-row.total { font-size: 17px; font-weight: 700; border-top: 1px solid var(--border); margin-top: 8px; padding-top: 12px; color: var(--primary); }
.stripe-element { border: 1.5px solid var(--border); border-radius: 9px; padding: 14px; background: #fff; margin-bottom: 16px; }
.cupon-row { display: flex; gap: 10px; }
.cupon-row .form-control { flex: 1; }

/* ── Professional card ── */
.prof-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: box-shadow .2s, transform .2s;
}
.prof-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.prof-card-img { width: 100%; height: 160px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); display: flex; align-items: center; justify-content: center; font-size: 48px; color: #fff; }
.prof-card-body { padding: 18px; }
.prof-card-title { font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.prof-card-esp   { font-size: 12px; color: var(--text-muted); margin-bottom: 12px; }
.prof-cupon { background: var(--bg); border: 1.5px dashed var(--primary); border-radius: 8px; padding: 9px 12px; font-size: 14px; font-family: monospace; letter-spacing: 1px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }

/* ── Table ── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--border); font-size: 13px; }
th { background: var(--bg); font-weight: 700; color: var(--text-muted); font-size: 11px; text-transform: uppercase; letter-spacing: .5px; }
tr:hover td { background: #f8fafc; }

/* ── Validar page ── */
.validar-card { max-width: 480px; margin: 60px auto; padding: 40px; text-align: center; }
.validar-card .perro-foto { width: 120px; height: 120px; border-radius: 50%; object-fit: cover; border: 4px solid var(--primary); margin: 0 auto 20px; display: block; }
.validar-status { padding: 8px 20px; border-radius: 20px; display: inline-block; margin-bottom: 16px; font-weight: 700; font-size: 14px; }
.validar-status.vigente { background: #d1fae5; color: #065f46; }
.validar-status.vencido { background: #fee2e2; color: #991b1b; }

/* ── Loader ── */
.loader-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(4px);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 16px;
}
.loader-overlay.active { display: flex; }
.spinner {
  width: 44px;
  height: 44px;
  border: 4px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .75s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Cropper modal ── */
#cropper-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

/* ── Admin stat card ── */
.stat-card { background: #fff; border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); border: 1px solid var(--border); }
.stat-num   { font-size: 30px; font-weight: 800; color: var(--primary); }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

/* ── Misc ── */
.text-center { text-align: center; }
.text-right  { text-align: right; }
.d-flex      { display: flex; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.align-center    { align-items: center; }
.justify-between { justify-content: space-between; }
.mb-0 { margin-bottom: 0; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 20px; }
.w-100 { width: 100%; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .navbar { padding: 0 20px; }
  .landing-hero { padding: 70px 20px 60px; }
  .landing-hero h1 { font-size: 32px; }
  .tipo-grid { grid-template-columns: 1fr; }
  .score-display { flex-wrap: wrap; gap: 10px; }
  .navbar-nav { display: none; }
  .card { padding: 20px; }
  .pasos-grid { grid-template-columns: 1fr 1fr; }
  .paso-item:not(:last-child)::after { display: none; }
  .hero-actions { flex-direction: column; align-items: center; }
}
@media (max-width: 480px) {
  .pasos-grid { grid-template-columns: 1fr; }
}