/* ═══════════════════════════════════════════════════════════════
   InterBienStar — shared.css
   Design system: Azul profundo + Cyan eléctrico
   Fonts: Outfit (display) + Plus Jakarta Sans (body)
   Target: Modern, trustworthy, accessible to local Mexican market
═══════════════════════════════════════════════════════════════ */

/* ── TOKENS ──────────────────────────────────────────────── */
:root {
  --bg:           #060c18;
  --bg-card:      #0a1628;
  --bg-surface:   #0e1d36;
  --bg-surface2:  #122240;

  --cyan:         #38bdf8;
  --cyan-deep:    #0ea5e9;
  --cyan-dark:    #0284c7;
  --green:        #22c55e;
  --amber:        #fbbf24;
  --red:          #ef4444;

  --text:         #f0f6ff;
  --text-2:       #94a3b8;
  --text-3:       #64748b;
  --border:       rgba(56, 189, 248, 0.1);
  --border-md:    rgba(56, 189, 248, 0.18);

  --font-display: 'Outfit', sans-serif;
  --font-body:    'Plus Jakarta Sans', sans-serif;

  --max-w: 1200px;
  --pad:   clamp(1.25rem, 5vw, 3.5rem);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --t: 260ms;
}

/* ── RESET ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; border: none; outline: none; }
textarea { resize: vertical; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ── CANVAS BG ──────────────────────────────────────────── */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.22;
}

/* ── LAYOUT ─────────────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.section {
  position: relative;
  z-index: 1;
  padding-block: clamp(4rem, 8vw, 7rem);
}

/* ── TYPOGRAPHY ─────────────────────────────────────────── */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.section-title em { font-style: normal; color: var(--cyan); }

.section-lead {
  font-size: 1.05rem;
  color: var(--text-2);
  line-height: 1.75;
  max-width: 540px;
}

.section-header {
  max-width: 600px;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

.hero-highlight {
  background: linear-gradient(100deg, var(--cyan) 0%, var(--cyan-deep) 60%, #67e8f9 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gshift 5s linear infinite;
}

@keyframes gshift {
  from { background-position: 0% }
  to   { background-position: 200% }
}

/* ── BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 0.65em 1.5em;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: all var(--t) var(--ease);
  white-space: nowrap;
  cursor: pointer;
}

.btn-primary {
  background: var(--cyan-deep);
  color: #fff;
  box-shadow: 0 0 0 0 rgba(14,165,233,0);
}
.btn-primary:hover {
  background: var(--cyan);
  color: var(--bg);
  box-shadow: 0 6px 24px rgba(14,165,233,0.4);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--cyan);
  border: 1.5px solid rgba(56,189,248,0.35);
}
.btn-outline:hover {
  border-color: var(--cyan);
  background: rgba(56,189,248,0.08);
  transform: translateY(-1px);
}

.btn-whatsapp {
  background: #25d366;
  color: #fff;
}
.btn-whatsapp:hover {
  background: #1ebe5a;
  box-shadow: 0 6px 20px rgba(37,211,102,0.35);
  transform: translateY(-2px);
}

.btn-lg { padding: 0.85em 2em; font-size: 1rem; border-radius: var(--radius-md); }
.btn-sm { padding: 0.45em 1em; font-size: 0.8rem; }
.btn-full { width: 100%; }

.link-read {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--cyan);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--t), opacity var(--t);
}
.link-read:hover { gap: 8px; opacity: 0.8; }

/* ── FORMS ───────────────────────────────────────────────── */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 1.1rem;
}

.form-group label {
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-2);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-surface2);
  border: 1px solid var(--border-md);
  border-radius: var(--radius-sm);
  padding: 0.7rem 1rem;
  font-size: 0.9rem;
  color: var(--text);
  transition: border-color var(--t), box-shadow var(--t);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--cyan-deep);
  box-shadow: 0 0 0 3px rgba(14,165,233,0.15);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-3); }
.form-group select option { background: var(--bg-surface); }

/* ── LIVE DOT ────────────────────────────────────────────── */
.live-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: var(--radius-full);
  background: var(--green);
  animation: livepulse 2s ease-out infinite;
  flex-shrink: 0;
}

@keyframes livepulse {
  0%   { box-shadow: 0 0 0 0 rgba(34,197,94,.6); }
  70%  { box-shadow: 0 0 0 8px rgba(34,197,94,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); }
}

/* ── REVEAL ──────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal.visible { opacity: 1; transform: none; }

/* ── NAVBAR ──────────────────────────────────────────────── */
#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
}

.nav-wrap {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 66px;
  padding-inline: var(--pad);
  background: rgba(6,12,24,0.82);
  backdrop-filter: blur(24px) saturate(160%);
  border-bottom: 1px solid var(--border);
  transition: background var(--t), border-color var(--t);
  max-width: 100%;
}

#site-header.scrolled .nav-wrap {
  background: rgba(6,12,24,0.97);
  border-color: var(--border-md);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
}

.logo-icon { width: 34px; height: 34px; flex-shrink: 0; }

.logo-text {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}

.logo-text em { font-style: normal; color: var(--cyan); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-links a {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-2);
  transition: color var(--t);
  padding-block: 4px;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 2px;
  background: var(--cyan);
  border-radius: var(--radius-full);
  transform: scaleX(0);
  transition: transform var(--t) var(--ease);
  transform-origin: left;
}

.nav-links a:hover, .nav-links a.nav-active { color: var(--text); }
.nav-links a:hover::after, .nav-links a.nav-active::after { transform: scaleX(1); }

.nav-actions { display: flex; gap: 0.6rem; align-items: center; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  transition: background var(--t);
}
.hamburger:hover { background: rgba(255,255,255,0.06); }
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: var(--radius-full);
  transition: transform var(--t) var(--ease), opacity var(--t);
}
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: absolute;
  top: 66px; left: 0; right: 0;
  background: rgba(6,12,24,0.98);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border-md);
  padding: 1.25rem var(--pad) 1.5rem;
  flex-direction: column;
  gap: 0;
}
.mobile-menu[aria-hidden="false"] { display: flex; }

.mobile-link {
  display: block;
  padding: 0.75rem 0;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-2);
  border-bottom: 1px solid var(--border);
  transition: color var(--t), padding-left var(--t);
}
.mobile-link:hover { color: var(--text); padding-left: 0.5rem; }

.mobile-menu-actions {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 1.25rem;
}

/* ── SIGNAL BAR ─────────────────────────────────────────── */
.signal-bar {
  position: absolute;
  bottom: 2.5rem;
  left: var(--pad); right: var(--pad);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-md), var(--cyan), var(--border-md), transparent);
  overflow: hidden;
}

.signal-travel {
  position: absolute;
  top: -1px;
  width: 64px; height: 3px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  border-radius: var(--radius-full);
  animation: sigtravel 3.5s linear infinite;
  filter: blur(1px);
}

@keyframes sigtravel {
  from { left: -80px; }
  to   { left: 100%; }
}

/* ── FOOTER ──────────────────────────────────────────────── */
.site-footer {
  position: relative;
  z-index: 1;
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding-top: clamp(3rem, 6vw, 5rem);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
}

.footer-brand .logo { margin-bottom: 1rem; }
.footer-brand p {
  font-size: 0.875rem;
  color: var(--text-2);
  line-height: 1.75;
  max-width: 280px;
  margin-bottom: 1rem;
}

.footer-contact-quick {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.footer-contact-quick a {
  font-size: 0.82rem;
  color: var(--cyan);
  transition: opacity var(--t);
}
.footer-contact-quick a:hover { opacity: 0.7; }

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 1rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col a {
  font-size: 0.875rem;
  color: var(--text-2);
  transition: color var(--t);
}
.footer-col a:hover { color: var(--cyan); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-block: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.footer-bottom p {
  font-size: 0.78rem;
  color: var(--text-3);
}
.footer-bottom a { color: var(--cyan); transition: opacity var(--t); }
.footer-bottom a:hover { opacity: 0.7; }

/* ── WHATSAPP FLOAT ─────────────────────────────────────── */
.whatsapp-float {
  position: fixed;
  bottom: 2rem; right: 2rem;
  z-index: 300;
  width: 58px; height: 58px;
  border-radius: var(--radius-full);
  background: #25d366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.45);
  transition: transform var(--t) var(--ease), box-shadow var(--t);
}
.whatsapp-float svg { width: 28px; height: 28px; }
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 28px rgba(37,211,102,0.55);
}

.whatsapp-pulse {
  position: absolute;
  inset: -4px;
  border-radius: var(--radius-full);
  border: 2px solid rgba(37,211,102,0.5);
  animation: wpulse 2s ease-out infinite;
}
@keyframes wpulse {
  0%   { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(1.5); }
}

/* ── TOAST ───────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 1.75rem; left: 50%;
  transform: translateX(-50%) translateY(80px);
  z-index: 400;
  background: var(--bg-surface);
  border: 1px solid var(--border-md);
  color: var(--text);
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  opacity: 0;
  transition: transform 0.4s var(--ease), opacity 0.4s;
  border-left: 3px solid var(--cyan);
  white-space: nowrap;
}
.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ── SCROLLBAR ───────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--bg-surface2); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: rgba(56,189,248,0.4); }

/* ── RESPONSIVE SHARED ───────────────────────────────────── */
@media (max-width: 1024px) {
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
  .nav-links, .nav-actions { display: none; }
  .hamburger { display: flex; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .whatsapp-float { bottom: 1.25rem; right: 1.25rem; width: 52px; height: 52px; }
  .toast { left: 1rem; right: 1rem; transform: translateY(80px); white-space: normal; text-align: center; }
  .toast.show { transform: translateY(0); }
}