/* ==========================================================================
   AXIO — Estética Médica Ejecutiva y Minimalismo de Élite (Apple / Linear Standard)
   Generoso espacio en blanco, tipografía sobria, máxima legibilidad y cero ruido
   ========================================================================== */

:root {
  --bg-dark: #07090E;
  --bg-card: #0E131C;
  --bg-card-hover: #141B26;
  --bg-elevated: #161E2C;
  
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.14);
  --border-active: rgba(56, 189, 248, 0.35);

  --cobalt-blue: #2563EB;
  --electric-cyan: #38BDF8;
  --emerald-green: #10B981;
  --rose-red: #F43F5E;
  
  --text-pure: #FFFFFF;
  --text-main: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-dim: #64748B;

  --font-heading: 'Plus Jakarta Sans', -apple-system, sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;

  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-pill: 9999px;

  --transition-fast: 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  position: relative;
  line-height: 1.65;
}

/* Luces Ambientales Suaves */
.ambient-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(160px);
  pointer-events: none;
  z-index: 0;
}

.glow-top {
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 500px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.14), transparent 70%);
}

.glow-bottom {
  top: 1500px;
  right: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.06), transparent 70%);
}

.container {
  width: 90%;
  max-width: 1120px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.text-center { text-align: center; }

/* Tipografía */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-pure);
}

.text-gradient {
  background: linear-gradient(135deg, #FFFFFF 0%, #38BDF8 60%, #2563EB 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-success { color: var(--emerald-green); }
.text-danger { color: var(--rose-red); }

/* 1. Header */
.site-header {
  position: fixed;
  top: 18px;
  left: 0;
  width: 100%;
  z-index: 100;
  display: flex;
  justify-content: center;
  pointer-events: none;
}

.nav-container {
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 90%;
  max-width: 980px;
  padding: 10px 22px;
  background: rgba(14, 19, 28, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.nav-left {
  display: flex;
  align-items: center;
}

.brand-link {
  display: flex;
  align-items: center;
}

.brand-logo {
  height: 24px;
  width: auto;
  border-radius: 4px;
}

.nav-menu {
  display: flex;
  gap: 24px;
}

.nav-item {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.86rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-item:hover {
  color: var(--text-pure);
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-smooth);
  border: none;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.84rem;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 0.95rem;
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background: var(--text-pure);
  color: #07090E;
  box-shadow: 0 4px 20px rgba(255, 255, 255, 0.12);
}

.btn-primary:hover {
  background: #E2E8F0;
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(255, 255, 255, 0.22);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-hover);
}

/* 2. Hero Section */
.hero-section {
  padding-top: 140px;
  padding-bottom: 75px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.25);
  border-radius: var(--radius-pill);
  margin-bottom: 24px;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--electric-cyan);
}

.status-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--electric-cyan);
  box-shadow: 0 0 8px var(--electric-cyan);
}

.hero-title {
  font-size: clamp(2.3rem, 4.8vw, 3.8rem);
  max-width: 880px;
  margin: 0 auto 18px auto;
  line-height: 1.18;
}

.hero-subhead {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto 34px auto;
  line-height: 1.65;
}

.hero-cta-group {
  display: flex;
  gap: 14px;
  justify-content: center;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

/* Métricas Clave */
.metrics-ribbon {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 920px;
  margin: 0 auto 52px auto;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.metric-block {
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-align: center;
}

.metric-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.1;
}

.metric-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-main);
}

.metric-desc {
  font-size: 0.74rem;
  color: var(--text-dim);
}

/* 3. Demostración Visual */
.live-demo-wrapper {
  max-width: 940px;
  margin: 0 auto;
}

.demo-selector-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0 6px;
}

.selector-title {
  font-size: 0.82rem;
  color: var(--text-dim);
  font-weight: 500;
}

.scenario-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.scenario-btn {
  padding: 7px 15px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.scenario-btn:hover {
  color: var(--text-pure);
  border-color: var(--border-hover);
}

.scenario-btn.active {
  background: rgba(37, 99, 235, 0.16);
  border-color: var(--cobalt-blue);
  color: var(--text-pure);
}

.demo-window {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
  text-align: left;
}

.demo-window-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: rgba(0, 0, 0, 0.35);
  border-bottom: 1px solid var(--border-subtle);
}

.channel-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.active-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--emerald-green);
}

.btn-reset {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-reset:hover {
  color: var(--text-pure);
  background: rgba(255, 255, 255, 0.1);
}

.demo-window-body {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  min-height: 400px;
}

/* Chat de WhatsApp */
.chat-column {
  background: #0A0F17;
  border-right: 1px solid var(--border-subtle);
}

.chat-messages-container {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-height: 420px;
  overflow-y: auto;
}

.chat-bubble {
  max-width: 85%;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  line-height: 1.5;
  animation: fadeInMsg 0.3s ease forwards;
}

@keyframes fadeInMsg {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.bubble-lead {
  align-self: flex-start;
  background: #17202E;
  color: var(--text-main);
  border-bottom-left-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.bubble-clinic {
  align-self: flex-end;
  background: linear-gradient(135deg, #1E3A8A, #1D4ED8);
  color: var(--text-pure);
  border-bottom-right-radius: 4px;
  border: 1px solid rgba(56, 189, 248, 0.25);
  box-shadow: 0 4px 16px rgba(30, 58, 138, 0.3);
}

.bubble-sender {
  display: block;
  font-size: 0.7rem;
  color: var(--electric-cyan);
  font-weight: 600;
  margin-bottom: 3px;
}

.bubble-lead .bubble-sender {
  color: var(--text-dim);
}

.bubble-time-row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  margin-top: 6px;
  font-size: 0.68rem;
  color: rgba(255, 255, 255, 0.5);
}

.speed-badge {
  color: var(--electric-cyan);
  font-weight: 600;
}

/* Indicador de "Escribiendo..." */
.typing-bubble {
  padding: 10px 14px;
}

.typing-dots-row {
  display: flex;
  gap: 4px;
  padding: 4px 0;
}

.typing-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--electric-cyan);
  animation: typing 1.2s infinite ease-in-out;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.4; }
  40% { transform: translateY(-4px); opacity: 1; }
}

/* Vista de Google Calendar */
.calendar-column {
  padding: 24px;
  background: rgba(14, 19, 28, 0.5);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 16px;
}

.calendar-status-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--emerald-green);
  font-size: 0.78rem;
  font-weight: 600;
}

.badge-icon {
  font-weight: 800;
}

.calendar-card {
  background: var(--bg-elevated);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: var(--radius-sm);
  display: flex;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  transition: all var(--transition-smooth);
}

.calendar-card.pulse-update {
  border-color: var(--emerald-green);
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.25);
}

.calendar-stripe {
  width: 4px;
  background: var(--cobalt-blue);
}

.calendar-info {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 100%;
}

.calendar-slot {
  font-size: 0.74rem;
  color: var(--electric-cyan);
  font-weight: 600;
}

.calendar-event-title {
  font-size: 0.96rem;
  color: var(--text-pure);
}

.calendar-doctor-name {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.calendar-tags-row {
  display: flex;
  gap: 6px;
  margin-top: 6px;
}

.event-tag {
  font-size: 0.7rem;
  padding: 2px 8px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
}

.auto-action-box {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.action-icon {
  font-size: 1.1rem;
}

.action-text strong {
  display: block;
  font-size: 0.8rem;
  color: var(--text-main);
}

.action-text p {
  font-size: 0.74rem;
  color: var(--text-secondary);
}

.calendar-note {
  border-top: 1px solid var(--border-subtle);
  padding-top: 10px;
  font-size: 0.72rem;
  color: var(--text-dim);
}

/* 4. Secciones Generales */
.section {
  padding: 96px 0;
}

.section-bordered {
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.01);
}

.section-header {
  max-width: 660px;
  margin: 0 auto 50px auto;
}

.section-kicker {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--electric-cyan);
  display: inline-block;
  margin-bottom: 12px;
}

.section-headline {
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  margin-bottom: 12px;
  line-height: 1.25;
}

.section-subheadline {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* El Sistema AXIO (Grid de 3 Pilares + RGPD) */
.system-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.system-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 34px 28px;
  transition: all var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.system-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.system-number {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--electric-cyan);
  margin-bottom: 12px;
  opacity: 0.85;
}

.system-title {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.system-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.system-card-full {
  grid-column: span 3;
  padding: 32px 30px;
  border-color: rgba(56, 189, 248, 0.2);
  background: linear-gradient(135deg, rgba(14, 19, 28, 0.95), rgba(22, 30, 44, 0.95));
}

.security-inner {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 24px;
  align-items: center;
}

.security-badge-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.shield-symbol {
  font-size: 2rem;
}

.security-tag {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--electric-cyan);
  letter-spacing: 0.05em;
}

.security-title {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.security-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 5. Pasos de Puesta en Marcha */
.steps-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  max-width: 980px;
  margin: 0 auto;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  text-align: left;
}

.step-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--electric-cyan);
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 12px;
}

.step-card .step-title {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.step-arrow {
  font-size: 1.5rem;
  color: var(--text-dim);
  font-weight: 300;
}

/* 6. Calculadora */
.calculator-card {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 30px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  max-width: 940px;
  margin: 0 auto;
}

.calc-inputs {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.calc-field-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.92rem;
  font-weight: 500;
  margin-bottom: 10px;
}

.calc-badge {
  color: var(--electric-cyan);
  font-weight: 700;
  font-size: 0.95rem;
}

.styled-slider {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.12);
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.styled-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--cobalt-blue);
  cursor: pointer;
  border: 2px solid #FFFFFF;
  box-shadow: 0 0 10px rgba(37, 99, 235, 0.6);
}

.calc-outputs {
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
}

.output-box {
  padding: 14px;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.loss-box {
  background: rgba(244, 63, 94, 0.08);
  border-left: 3px solid var(--rose-red);
}

.gain-box {
  background: rgba(16, 185, 129, 0.08);
  border-left: 3px solid var(--emerald-green);
}

.gain-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.roi-tag {
  background: rgba(16, 185, 129, 0.2);
  color: var(--emerald-green);
  border: 1px solid rgba(16, 185, 129, 0.35);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
  font-weight: 700;
}

.output-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.output-number {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
}

.output-sub {
  font-size: 0.72rem;
  color: var(--text-dim);
}

/* 7. Preguntas Frecuentes */
.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-card.open {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.faq-question {
  width: 100%;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  color: var(--text-main);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}

.faq-plus {
  font-size: 1.3rem;
  color: var(--text-dim);
  transition: transform var(--transition-fast);
}

.faq-card.open .faq-plus {
  transform: rotate(45deg);
  color: var(--electric-cyan);
}

.faq-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 24px;
}

.faq-card.open .faq-body {
  max-height: 300px;
  padding: 0 24px 20px 24px;
}

.faq-body p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 8. Sección de Agendamiento */
.section-cta {
  padding-bottom: 110px;
}

.cta-box {
  background: linear-gradient(180deg, var(--bg-card-hover), var(--bg-card));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 48px 36px;
  max-width: 800px;
  margin: 0 auto;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.guarantee-badge {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--emerald-green);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}

.cta-title {
  font-size: clamp(1.8rem, 3.2vw, 2.3rem);
  margin-bottom: 12px;
}

.cta-subtitle {
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto 30px auto;
  font-size: 0.95rem;
}

.cta-perks-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 540px;
  margin: 0 auto 32px auto;
  text-align: left;
}

.perk-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-main);
}

.perk-icon {
  color: var(--emerald-green);
  font-weight: 700;
}

.cta-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.cta-exclusivity {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* 9. Footer */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 40px 0;
}

.footer-layout {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-logo {
  height: 22px;
  width: auto;
  margin-bottom: 6px;
}

.footer-claim {
  font-size: 0.82rem;
  color: var(--text-dim);
}

.footer-founder {
  color: var(--text-secondary) !important;
  font-size: 0.78rem;
  margin-top: 2px;
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--text-dim);
}

.footer-rgpd {
  font-size: 0.74rem;
  color: rgba(255, 255, 255, 0.3);
  margin-top: 2px;
}

/* Modal */
.modal-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
}

.modal-backdrop.open {
  display: flex;
}

.modal-box {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-lg);
  padding: 34px 28px;
  width: 90%;
  max-width: 480px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(255, 255, 255, 0.06);
  border: none;
  color: var(--text-secondary);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  color: var(--text-pure);
  background: rgba(255, 255, 255, 0.12);
}

.modal-pill {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--electric-cyan);
  letter-spacing: 0.05em;
  display: inline-block;
  margin-bottom: 8px;
}

.modal-header h3 {
  font-size: 1.3rem;
  margin-bottom: 6px;
}

.modal-header p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
  text-align: left;
}

.form-field label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-field input, 
.form-field select {
  padding: 10px 14px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-pure);
  font-family: var(--font-body);
  font-size: 0.88rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-field input:focus, 
.form-field select:focus {
  border-color: var(--electric-cyan);
}

.modal-note {
  font-size: 0.72rem;
  color: var(--text-dim);
  text-align: center;
  margin-top: 4px;
}

.modal-success-msg {
  text-align: center;
  padding: 20px 10px;
}

.modal-success-msg h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.modal-success-msg p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* Responsivo */
@media (max-width: 960px) {
  .system-grid { grid-template-columns: 1fr; }
  .system-card-full { grid-column: span 1; }
  .security-inner { grid-template-columns: 1fr; }
  .steps-row { grid-template-columns: 1fr; gap: 20px; }
  .step-arrow { display: none; }
}

@media (max-width: 860px) {
  .nav-menu { display: none; }
  .metrics-ribbon { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .demo-window-body { grid-template-columns: 1fr; }
  .chat-column { border-right: none; border-bottom: 1px solid var(--border-subtle); }
  .calculator-card { grid-template-columns: 1fr; }
  .footer-layout { flex-direction: column; text-align: center; }
}