/* ═══════════════════════════════════════════════════════════
   DESPACHO FISCAL MX — Estilos Principales
   ═══════════════════════════════════════════════════════════ */

:root {
  --primary:     #1a56db;
  --primary-dark:#1340b0;
  --accent:      #0ea5e9;
  --gold:        #f59e0b;
  --dark:        #0f172a;
  --dark-2:      #1e293b;
  --dark-3:      #334155;
  --text:        #1e293b;
  --text-muted:  #64748b;
  --border:      #e2e8f0;
  --light-bg:    #f8fafc;
  --white:       #ffffff;
  --success:     #10b981;
  --radius:      12px;
  --radius-lg:   20px;
  --shadow:      0 4px 24px rgba(0,0,0,.08);
  --shadow-lg:   0 12px 48px rgba(0,0,0,.14);
  --transition:  .25s ease;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── Utilities ─────────────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: inherit; font-weight: 600; border: none; cursor: pointer;
  border-radius: 8px; transition: all var(--transition); text-decoration: none;
  white-space: nowrap; padding: 10px 22px; font-size: .9rem;
}
.btn-primary  { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(26,86,219,.35); }
.btn-outline  { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover  { background: var(--primary); color: #fff; }
.btn-lg  { padding: 14px 32px; font-size: 1rem; border-radius: 10px; }
.btn-full { width: 100%; padding: 14px; font-size: 1rem; }

.section { padding: 96px 0; }
.section-light { background: var(--light-bg); }
.section-dark  { background: var(--dark); }

.section-header { text-align: center; max-width: 680px; margin: 0 auto 64px; }
.section-header h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 800; margin: 12px 0 16px; line-height: 1.2; }
.section-header p  { color: var(--text-muted); font-size: 1.05rem; }
.section-header.light h2 { color: #fff; }
.section-header.light p  { color: #94a3b8; }

.section-tag {
  display: inline-block; background: #eff6ff; color: var(--primary);
  font-size: .78rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  padding: 5px 14px; border-radius: 99px;
}
.section-dark .section-tag { background: rgba(14,165,233,.15); color: var(--accent); }

/* ── Navbar ─────────────────────────────────────────────────── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,.92); backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.navbar.scrolled { border-color: var(--border); box-shadow: var(--shadow); }

.nav-inner {
  display: flex; align-items: center; gap: 32px;
  height: 68px; justify-content: space-between;
}

.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-icon { font-size: 1.5rem; }
.logo-text { font-size: .95rem; color: var(--text); font-weight: 400; }
.logo-text strong { font-weight: 800; color: var(--primary); }
.logo-mx { font-weight: 800; color: var(--gold); }

.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  color: var(--text); text-decoration: none; font-size: .9rem; font-weight: 500;
  padding: 7px 14px; border-radius: 8px; transition: all var(--transition);
}
.nav-links a:hover { background: var(--light-bg); color: var(--primary); }

.nav-cta { display: none; }
@media(min-width: 768px) { .nav-cta { display: inline-flex; } }

.hamburger {
  display: none; flex-direction: column; gap: 5px; background: none; border: none;
  cursor: pointer; padding: 4px; width: 32px;
}
.hamburger span { display: block; height: 2px; background: var(--text); border-radius: 2px; transition: all var(--transition); }

@media(max-width: 900px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .nav-links.open {
    display: flex; flex-direction: column; align-items: flex-start; gap: 4px;
    position: fixed; top: 68px; left: 0; right: 0;
    background: #fff; padding: 16px 24px 24px;
    border-bottom: 1px solid var(--border); box-shadow: var(--shadow);
  }
  .nav-links.open a { width: 100%; padding: 11px 14px; }
}

/* ── Hero ────────────────────────────────────────────────────── */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden; padding-top: 68px;
}

.hero-bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0f172a 100%);
}
.hero-bg::after {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 70% 60% at 60% 40%, rgba(14,165,233,.18) 0%, transparent 70%);
}

.hero-content {
  position: relative; z-index: 2; text-align: center; padding: 80px 24px;
  max-width: 860px;
}

.hero-badge {
  display: inline-block; background: rgba(255,255,255,.1); color: #e2e8f0;
  font-size: .82rem; font-weight: 500; padding: 7px 18px; border-radius: 99px;
  border: 1px solid rgba(255,255,255,.15); margin-bottom: 28px; letter-spacing: .02em;
}

.hero-title {
  font-family: 'Merriweather', serif;
  font-size: clamp(2rem, 5vw, 3.4rem); color: #fff; line-height: 1.2;
  margin-bottom: 20px; font-weight: 900;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem); color: #94a3b8; max-width: 640px;
  margin: 0 auto 36px; line-height: 1.7;
}

.hero-ctas { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 52px; }
.hero .btn-outline { color: #fff; border-color: rgba(255,255,255,.4); }
.hero .btn-outline:hover { background: rgba(255,255,255,.1); color: #fff; }

.hero-stats {
  display: flex; align-items: center; justify-content: center; gap: 0; flex-wrap: wrap;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg); padding: 24px 40px; backdrop-filter: blur(10px);
}
.stat { text-align: center; padding: 0 28px; }
.stat strong { display: block; font-size: 2rem; font-weight: 800; color: #fff; }
.stat span { font-size: .82rem; color: #94a3b8; }
.stat-divider { width: 1px; height: 48px; background: rgba(255,255,255,.15); }

.hero-scroll {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: #64748b; font-size: .78rem; text-transform: uppercase; letter-spacing: .08em;
}
.scroll-arrow {
  width: 24px; height: 24px; border-right: 2px solid #475569; border-bottom: 2px solid #475569;
  transform: rotate(45deg); animation: bounce 1.6s infinite;
}
@keyframes bounce { 0%,100%{transform:rotate(45deg) translateY(0)} 50%{transform:rotate(45deg) translateY(5px)} }

/* ── Services Grid ────────────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px;
  transition: all var(--transition); position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 3px; background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0); transition: transform var(--transition); transform-origin: left;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.service-card:hover::before { transform: scaleX(1); }

.service-card.featured {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-color: transparent; color: #fff;
}
.service-card.featured::before { background: var(--gold); transform: scaleX(1); }
.service-card.featured p { color: #bfdbfe; }
.service-card.featured .service-list { color: #dbeafe; }
.service-card.featured .service-link { color: var(--gold); }

.service-badge {
  position: absolute; top: 20px; right: 20px;
  background: var(--gold); color: var(--dark); font-size: .72rem;
  font-weight: 700; padding: 4px 10px; border-radius: 99px; letter-spacing: .04em;
}

.service-icon { font-size: 2.4rem; margin-bottom: 16px; }
.service-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; }
.service-card p { color: var(--text-muted); font-size: .9rem; margin-bottom: 16px; }

.service-list { list-style: none; margin-bottom: 20px; display: flex; flex-direction: column; gap: 6px; }
.service-list li { font-size: .88rem; color: var(--text-muted); padding-left: 16px; position: relative; }
.service-list li::before { content: '✓'; position: absolute; left: 0; color: var(--success); font-weight: 700; }
.service-card.featured .service-list li::before { color: var(--gold); }

.service-link { font-size: .88rem; font-weight: 600; color: var(--primary); text-decoration: none; transition: gap var(--transition); }
.service-link:hover { text-decoration: underline; }

/* ── Calculator ───────────────────────────────────────────────── */
.calc-wrapper {
  max-width: 860px; margin: 0 auto;
  background: var(--dark-2); border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,.08); overflow: hidden;
}

.calc-tabs {
  display: flex; border-bottom: 1px solid rgba(255,255,255,.08);
}
.calc-tab {
  flex: 1; padding: 16px; background: none; border: none; cursor: pointer;
  color: #94a3b8; font-family: inherit; font-size: .95rem; font-weight: 600;
  transition: all var(--transition); position: relative;
}
.calc-tab::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 2px; background: var(--primary); transform: scaleX(0); transition: transform var(--transition);
}
.calc-tab.active { color: #fff; }
.calc-tab.active::after { transform: scaleX(1); }
.calc-tab:hover { color: #e2e8f0; }

.calc-panel { display: none; padding: 32px; }
.calc-panel.active { display: block; }

.calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
@media(max-width: 640px) { .calc-grid { grid-template-columns: 1fr; } }

.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-group label { font-size: .82rem; font-weight: 600; color: #94a3b8; text-transform: uppercase; letter-spacing: .05em; }
.form-group input, .form-group select, .form-group textarea {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1);
  border-radius: 8px; padding: 11px 14px; color: #fff;
  font-family: inherit; font-size: .95rem; transition: border-color var(--transition);
  width: 100%;
}
.form-group input::placeholder, .form-group textarea::placeholder { color: #475569; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--primary); background: rgba(26,86,219,.08);
}
.form-group select option { background: var(--dark-2); color: #fff; }

.input-prefix { display: flex; align-items: center; }
.input-prefix span {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1);
  border-right: none; padding: 11px 12px; color: #64748b; border-radius: 8px 0 0 8px;
  font-weight: 600;
}
.input-prefix input { border-radius: 0 8px 8px 0; }

.calc-results {
  background: rgba(255,255,255,.04); border-radius: var(--radius); padding: 24px;
  border: 1px solid rgba(255,255,255,.06); min-height: 280px;
  display: flex; align-items: center; justify-content: center;
}
.result-placeholder { text-align: center; color: #475569; }
.result-placeholder span { font-size: 2.5rem; display: block; margin-bottom: 12px; }

.result-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.06);
}
.result-item:last-child { border-bottom: none; }
.result-label { font-size: .85rem; color: #94a3b8; }
.result-value { font-size: .95rem; font-weight: 600; color: #e2e8f0; }
.result-total .result-label { color: #e2e8f0; font-weight: 600; font-size: .95rem; }
.result-total .result-value { color: var(--gold); font-size: 1.3rem; font-weight: 800; }
.result-header { color: #fff; font-weight: 700; font-size: 1rem; margin-bottom: 12px; padding-bottom: 10px; border-bottom: 1px solid rgba(255,255,255,.1); }
.result-cta { margin-top: 16px; font-size: .8rem; color: #94a3b8; text-align: center; }
.result-cta a { color: var(--accent); text-decoration: none; font-weight: 600; }

.calc-disclaimer { font-size: .78rem; color: #475569; margin-top: 16px; text-align: center; }

/* ── About ────────────────────────────────────────────────────── */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center;
}
@media(max-width: 900px) { .about-grid { grid-template-columns: 1fr; gap: 48px; } }

.about-visual { position: relative; }
.about-card-main {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: var(--radius-lg); padding: 36px; color: #fff; margin-bottom: 20px;
}
.about-card-icon { font-size: 2.5rem; margin-bottom: 16px; }
.about-card-main h4 { font-size: 1.25rem; margin-bottom: 10px; }
.about-card-main p { color: #bfdbfe; font-size: .9rem; }

.about-badges {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
}
.badge-item {
  background: var(--light-bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 16px; display: flex; align-items: center; gap: 12px;
}
.badge-num {
  background: var(--primary); color: #fff; font-size: .75rem; font-weight: 800;
  padding: 5px 9px; border-radius: 6px; letter-spacing: .04em; white-space: nowrap;
}
.badge-item span:last-child { font-size: .82rem; color: var(--text-muted); font-weight: 500; }

.about-text .section-tag { margin-bottom: 16px; }
.about-text h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; margin-bottom: 20px; line-height: 1.2; }
.about-text p { color: var(--text-muted); margin-bottom: 16px; font-size: .97rem; }

.values-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 32px;
}
.value-item {
  display: flex; gap: 12px; align-items: flex-start;
  background: var(--light-bg); border-radius: var(--radius); padding: 16px;
}
.value-icon { font-size: 1.4rem; flex-shrink: 0; }
.value-item strong { display: block; font-size: .9rem; margin-bottom: 3px; }
.value-item p { font-size: .8rem; color: var(--text-muted); margin: 0; }

/* ── Regímenes ─────────────────────────────────────────────────── */
.regimenes-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px;
}
.regimen-item {
  display: flex; align-items: center; gap: 16px;
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 20px; transition: all var(--transition);
}
.regimen-item:hover { border-color: var(--primary); box-shadow: 0 4px 16px rgba(26,86,219,.1); }
.regimen-item.highlight { border-color: var(--gold); background: #fffbeb; }
.regimen-code {
  background: var(--primary); color: #fff; font-size: .8rem; font-weight: 800;
  padding: 6px 10px; border-radius: 8px; letter-spacing: .03em; flex-shrink: 0;
}
.regimen-item.highlight .regimen-code { background: var(--gold); color: var(--dark); }
.regimen-info { display: flex; flex-direction: column; gap: 2px; }
.regimen-info strong { font-size: .88rem; font-weight: 700; }
.regimen-info span { font-size: .78rem; color: var(--text-muted); }

/* ── Testimonios ───────────────────────────────────────────────── */
.testimonios-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px;
}
.testimonio-card {
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-lg); padding: 32px; transition: all var(--transition);
}
.testimonio-card:hover { background: rgba(255,255,255,.08); border-color: rgba(14,165,233,.3); }
.stars { color: var(--gold); font-size: 1rem; margin-bottom: 16px; letter-spacing: 2px; }
.testimonio-card > p { color: #94a3b8; font-size: .93rem; line-height: 1.7; margin-bottom: 20px; font-style: italic; }
.testimonio-author { display: flex; align-items: center; gap: 14px; }
.author-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; font-weight: 700; font-size: .9rem;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.testimonio-author strong { display: block; color: #e2e8f0; font-size: .9rem; }
.testimonio-author span { font-size: .78rem; color: #64748b; }

/* ── Contact ────────────────────────────────────────────────────── */
.contact-grid {
  display: grid; grid-template-columns: 3fr 2fr; gap: 48px; align-items: start;
}
@media(max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

.contact-form-wrap {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 36px;
}

.contact-form .form-group label { color: var(--text-muted); }
.contact-form .form-group input,
.contact-form .form-group select,
.contact-form .form-group textarea {
  background: var(--light-bg); border-color: var(--border); color: var(--text);
}
.contact-form .form-group input:focus,
.contact-form .form-group select:focus,
.contact-form .form-group textarea:focus { background: #fff; border-color: var(--primary); }
.contact-form .form-group select option { background: #fff; color: var(--text); }
.contact-form .input-prefix span { background: var(--light-bg); border-color: var(--border); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media(max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

.form-note { font-size: .78rem; color: var(--text-muted); text-align: center; margin-top: 14px; }

.form-success { text-align: center; padding: 48px 24px; }
.success-icon { font-size: 3rem; margin-bottom: 16px; }
.form-success h3 { font-size: 1.4rem; margin-bottom: 10px; }
.form-success p { color: var(--text-muted); margin-bottom: 24px; }

.contact-info { padding: 8px 0; }
.contact-info h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 28px; }
.contact-item { display: flex; gap: 16px; margin-bottom: 24px; align-items: flex-start; }
.contact-icon { font-size: 1.4rem; flex-shrink: 0; margin-top: 2px; }
.contact-item strong { display: block; font-size: .9rem; margin-bottom: 4px; }
.contact-item p { font-size: .88rem; color: var(--text-muted); line-height: 1.6; margin: 0; }

.whatsapp-btn {
  display: flex; align-items: center; gap: 10px; margin-top: 32px;
  background: #25d366; color: #fff; font-weight: 700; font-size: .95rem;
  padding: 14px 24px; border-radius: 10px; text-decoration: none;
  transition: all var(--transition); justify-content: center;
}
.whatsapp-btn:hover { background: #1fad53; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(37,211,102,.35); }
.whatsapp-btn span { font-size: 1.3rem; }

/* ── Footer ─────────────────────────────────────────────────────── */
.footer { background: var(--dark); padding: 80px 0 0; }
.footer-inner {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
  padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,.08);
}
@media(max-width: 900px) { .footer-inner { grid-template-columns: 1fr 1fr; } }
@media(max-width: 600px) { .footer-inner { grid-template-columns: 1fr; } }

.footer .logo-text { color: #e2e8f0; }
.footer-brand p { color: #64748b; font-size: .88rem; margin-top: 16px; line-height: 1.6; max-width: 300px; }
.social-links { display: flex; gap: 12px; margin-top: 20px; }
.social-links a { font-size: 1.3rem; text-decoration: none; transition: transform var(--transition); }
.social-links a:hover { transform: scale(1.2); }

.footer-links h4 { color: #e2e8f0; font-size: .88rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; margin-bottom: 18px; }
.footer-links ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: #64748b; text-decoration: none; font-size: .88rem; transition: color var(--transition); }
.footer-links a:hover { color: #e2e8f0; }

.footer-bottom {
  padding: 20px 0; text-align: center;
}
.footer-bottom p { color: #334155; font-size: .78rem; line-height: 1.7; }

/* ── Responsive tweaks ──────────────────────────────────────────── */
@media(max-width: 640px) {
  .hero-stats { gap: 16px; flex-direction: column; padding: 20px 24px; }
  .stat-divider { width: 48px; height: 1px; }
  .section { padding: 64px 0; }
  .about-badges { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 24px; }
}

/* ── Scroll animations ──────────────────────────────────────────── */
[data-aos] { opacity: 0; transform: translateY(20px); transition: opacity .5s ease, transform .5s ease; }
[data-aos].aos-visible { opacity: 1; transform: translateY(0); }
[data-aos][data-aos-delay="100"] { transition-delay: .1s; }
[data-aos][data-aos-delay="200"] { transition-delay: .2s; }
[data-aos][data-aos-delay="300"] { transition-delay: .3s; }
[data-aos][data-aos-delay="400"] { transition-delay: .4s; }
[data-aos][data-aos-delay="500"] { transition-delay: .5s; }