/* ═══════════════════════════════════════════════════════════════════════════
   ESX IA — Landing Page Styles
   Dark theme, professional, ESX brand (black primary, clean)
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
  --bg: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: #1a1a1a;
  --bg-card-hover: #222222;
  --border: #2a2a2a;
  --text: #ffffff;
  --text-secondary: #a0a0a0;
  --text-muted: #666666;
  --primary: #6366f1;
  --primary-hover: #818cf8;
  --primary-glow: rgba(99, 102, 241, 0.3);
  --accent: #22c55e;
  --accent-glow: rgba(34, 197, 94, 0.3);
  --gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
  --gradient-text: linear-gradient(135deg, #818cf8 0%, #c084fc 100%);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.5);
}

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; }

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── BUTTONS ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.btn--lg { padding: 18px 40px; font-size: 1.1rem; }

.btn--primary {
  background: var(--primary);
  color: #fff;
}
.btn--primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--primary-glow);
}

.btn--outline {
  background: transparent;
  border: 2px solid var(--border);
  color: var(--text);
}
.btn--outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

.btn--full { width: 100%; justify-content: center; }

.btn--glow {
  animation: btnGlow 2s ease-in-out infinite;
}

@keyframes btnGlow {
  0%, 100% { box-shadow: 0 0 20px var(--primary-glow); }
  50% { box-shadow: 0 0 40px var(--primary-glow), 0 0 60px rgba(168, 85, 247, 0.2); }
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  text-align: center;
  max-width: 600px;
  margin: 0 auto 48px;
}

/* ─── NAV ──────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav__logo-img { height: 38px; width: auto; aspect-ratio: 800 / 303; }

.nav__logo-text {
  font-size: 1.3rem;
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 0.95rem;
}

.nav__links a {
  color: var(--text-secondary);
  transition: color 0.2s;
}
.nav__links a:hover { color: var(--text); }

.nav__btn {
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
}

.nav__btn--outline {
  border: 2px solid var(--border);
}
.nav__btn--outline:hover {
  border-color: var(--primary);
  color: var(--primary) !important;
}

.nav__btn--primary {
  background: var(--primary);
  color: #fff !important;
}
.nav__btn--primary:hover {
  background: var(--primary-hover);
  color: #fff !important;
}

/* ─── HERO ─────────────────────────────────────────────────── */
.hero {
  padding: 160px 0 100px;
  background: radial-gradient(ellipse at 50% 0%, rgba(99, 102, 241, 0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 100%, rgba(168, 85, 247, 0.06) 0%, transparent 50%);
}

.hero__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.hero__title {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero__highlight {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 540px;
}

.hero__cta {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero__stats {
  display: flex;
  gap: 32px;
}

.hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero__stat-number {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
}

.hero__stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ─── HERO VISUAL ──────────────────────────────────────────── */
.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__device-mockup {
  width: 280px;
  height: 380px;
  background: linear-gradient(145deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  border-radius: 28px;
  border: 3px solid #2a2a4a;
  box-shadow: var(--shadow-lg), 0 0 80px rgba(99, 102, 241, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero__device-screen {
  width: 220px;
  height: 260px;
  background: var(--bg);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.hero__device-emoji { font-size: 4rem; }

.hero__device-text {
  text-align: center;
  font-size: 1.4rem;
  color: var(--text-secondary);
  line-height: 1.3;
}

.hero__device-text strong {
  color: var(--text);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__device-wave {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 32px;
}

.hero__device-bar {
  width: 5px;
  background: var(--primary);
  border-radius: 3px;
  animation: wave 1s ease-in-out infinite;
}
.hero__device-bar:nth-child(1) { height: 12px; animation-delay: 0s; }
.hero__device-bar:nth-child(2) { height: 24px; animation-delay: 0.1s; }
.hero__device-bar:nth-child(3) { height: 18px; animation-delay: 0.2s; }
.hero__device-bar:nth-child(4) { height: 28px; animation-delay: 0.3s; }
.hero__device-bar:nth-child(5) { height: 14px; animation-delay: 0.4s; }

@keyframes wave {
  0%, 100% { transform: scaleY(1); }
  50% { transform: scaleY(1.8); }
}

/* ─── DEVICE PREVIEW ───────────────────────────────────────── */
.device-preview {
  padding: 80px 0;
  background: var(--bg-secondary);
}

.device-preview__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.device-preview__image {
  display: flex;
  justify-content: center;
}

.device-preview__mock {
  width: 200px;
  height: 300px;
  background: linear-gradient(145deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  border-radius: 24px;
  border: 3px solid #2a2a4a;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px;
  gap: 8px;
  box-shadow: var(--shadow-lg);
}

.device-preview__screen {
  width: 100%;
  height: 200px;
  background: var(--bg);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.device-preview__content {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.device-preview__time {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.device-preview__icon {
  font-size: 0.85rem;
  color: var(--accent);
}

.device-preview__main-icon {
  font-size: 3rem;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.device-preview__text {
  font-size: 0.9rem;
  color: var(--text-muted);
  animation: fadeInOut 2s ease-in-out infinite;
}

@keyframes fadeInOut {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.device-preview__speaker {
  width: 60px;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  margin-top: 6px;
}

.device-preview__info h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 24px;
}

.device-preview__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.device-preview__features li {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.device-preview__features li strong {
  color: var(--text);
}

/* ─── FEATURES ─────────────────────────────────────────────── */
.features {
  padding: 100px 0;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all 0.3s ease;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(99, 102, 241, 0.05);
}

.feature-card__icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

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

/* ─── HOW IT WORKS ─────────────────────────────────────────── */
.how-it-works {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-top: 48px;
}

.step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  flex: 1;
  max-width: 320px;
  position: relative;
  transition: all 0.3s ease;
}

.step:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
}

.step__number {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 28px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
}

.step__icon { font-size: 2.5rem; margin-bottom: 16px; }

.step h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.step p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.step__arrow {
  font-size: 1.8rem;
  color: var(--primary);
  font-weight: 300;
}

/* ─── PRICING ───────────────────────────────────────────────── */
.pricing {
  padding: 100px 0;
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  transition: all 0.3s ease;
  position: relative;
}

.pricing-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
}

.pricing-card--featured {
  border-color: var(--primary);
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.06) 0%, var(--bg-card) 30%);
  box-shadow: 0 0 40px rgba(99, 102, 241, 0.05);
}

.pricing-card__badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient);
  color: #fff;
  padding: 6px 24px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  white-space: nowrap;
}

.pricing-card__header h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.pricing-card__price {
  font-size: 2.5rem;
  font-weight: 900;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.pricing-card__price span {
  font-size: 0.95rem;
  font-weight: 400;
  -webkit-text-fill-color: var(--text-muted);
  background-clip: text;
}

.pricing-card__desc {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.pricing-card__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.pricing-card__features li {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ─── HARDWARE BOX ─────────────────────────────────────────── */
.hardware-box {
  display: block;
  margin-top: 48px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(168, 85, 247, 0.06) 100%);
  border: 1px solid var(--primary);
  border-radius: var(--radius);
  padding: 32px 40px;
  color: inherit;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hardware-box:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(99, 102, 241, 0.12);
}

.hardware-box__content {
  display: flex;
  align-items: center;
  gap: 24px;
}

.hardware-box__emoji { font-size: 3rem; }

.hardware-box__content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.hardware-box__content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.hardware-box__price {
  margin-left: auto;
  text-align: right;
}

.hardware-box__amount {
  font-size: 2rem;
  font-weight: 900;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hardware-box__note {
  display: block;
  font-size: 0.85rem;
  color: var(--accent);
  margin-top: 4px;
}

/* ─── SUCCESS CASES ─────────────────────────────────────────── */
.success-cases {
  padding: 100px 0;
  background: radial-gradient(ellipse at 70% 0%, rgba(99, 102, 241, 0.06) 0%, transparent 55%);
}

.success-cases__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.success-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.3s ease;
}

.success-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.success-card__icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.success-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.success-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.success-card__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.12);
  color: #c7d2fe;
  font-size: 0.82rem;
  font-weight: 600;
}

.success-card--quote {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.12) 0%, rgba(168, 85, 247, 0.1) 100%);
  border-color: rgba(129, 140, 248, 0.4);
}

/* ─── REPRESENTATIVE STORIES ────────────────────────────────── */
.success-stories {
  padding: 0 0 100px;
}

.stories-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.story-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.02) 0%, rgba(99, 102, 241, 0.05) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.3s ease;
}

.story-card:hover {
  border-color: rgba(129, 140, 248, 0.45);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.story-card__meta {
  display: inline-flex;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.12);
  color: #c7d2fe;
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.story-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.story-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 16px;
}

.story-card__result {
  display: block;
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 600;
}

/* ─── CONTACT ───────────────────────────────────────────────── */
.contact {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.contact__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  transition: all 0.3s ease;
}

.contact-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
}

.contact-card__icon { font-size: 2rem; }

.contact-card strong {
  font-size: 1.1rem;
}

.contact-card span {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ─── FOOTER ────────────────────────────────────────────────── */
.footer {
  padding: 64px 0 32px;
  border-top: 1px solid var(--border);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer__brand { display: flex; flex-direction: column; gap: 16px; }

.footer__logo { height: 48px; width: auto; aspect-ratio: 800 / 303; }

.footer__brand p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer__links { display: flex; flex-direction: column; gap: 12px; }

.footer__links h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.footer__links a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

.footer__links a:hover { color: var(--text); }

.footer__bottom {
  padding-top: 32px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer__bottom a {
  color: var(--text-secondary);
  transition: color 0.2s;
}

.footer__bottom a:hover { color: var(--text); }

/* ─── INSTRUCTIVO ───────────────────────────────────────────── */
.instructivo {
  padding: 100px 0;
}

.instructivo__tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.instructivo__card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all 0.3s ease;
}

.instructivo__card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.instructivo__card--highlight {
  grid-column: 1 / -1;
  border-color: var(--primary);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.04) 0%, var(--bg-card) 50%);
}

.instructivo__card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.instructivo__card-number {
  font-size: 1.5rem;
  font-weight: 900;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.instructivo__card-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
}

.instructivo__steps-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.instructivo__step-item {
  display: flex;
  gap: 14px;
}

.instructivo__step-marker {
  width: 28px;
  height: 28px;
  min-width: 28px;
  background: var(--bg-card-hover);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-top: 2px;
}

.instructivo__step-item strong {
  display: block;
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 4px;
}

.instructivo__step-item p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.instructivo__step-item code {
  background: var(--bg-card-hover);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.85rem;
  color: var(--primary);
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.instructivo__sub-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 8px;
}

.instructivo__sub-list li {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ─── CREDENTIAL BOX ────────────────────────────────────────── */
.instructivo__credential-box {
  margin-top: 28px;
  padding: 28px;
  background: var(--bg-card-hover);
  border: 1px solid var(--primary);
  border-radius: var(--radius-sm);
  text-align: center;
}

.instructivo__credential-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.instructivo__credential-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.instructivo__credential-example {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.instructivo__credential-field {
  display: flex;
  align-items: center;
  gap: 8px;
}

.instructivo__credential-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.instructivo__credential-value {
  background: var(--bg);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-size: 0.95rem;
  font-family: 'SF Mono', 'Fira Code', monospace;
  color: var(--primary);
}

.instructivo__credential-btn {
  display: inline-flex;
  margin-top: 8px;
}

/* ─── RESPONSIVE ────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero__container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__title { font-size: 2.5rem; }
  .hero__subtitle { max-width: 100%; }
  .hero__cta { justify-content: center; }
  .hero__stats { justify-content: center; }
  .hero__visual { display: none; }

  .device-preview__grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .device-preview__image { order: 1; }
  .device-preview__features { align-items: center; }

  .features__grid { grid-template-columns: 1fr; }
  .pricing__grid { grid-template-columns: 1fr; }

  .steps {
    flex-direction: column;
  }

  .step__arrow {
    transform: rotate(90deg);
  }

  .hardware-box__content {
    flex-direction: column;
    text-align: center;
  }

  .success-cases__grid {
    grid-template-columns: 1fr;
  }

  .stories-grid {
    grid-template-columns: 1fr;
  }

  .hardware-box__price {
    margin-left: 0;
    text-align: center;
  }

  .contact__cards { grid-template-columns: 1fr; }

  .footer__grid { grid-template-columns: 1fr 1fr; }

  .nav__links {
    display: none;
  }
}

@media (max-width: 600px) {
  .section-title { font-size: 1.8rem; }
  .hero__title { font-size: 2rem; }
  .hero__cta { flex-direction: column; }
  .hero__stats { flex-direction: column; align-items: center; gap: 16px; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: 8px; text-align: center; }
}

/* ─── INSTRUCTIVO: GRID RESPONSIVE (3 cols desktop, 2 <=900px, 1 <=600px) ─── */
@media (max-width: 900px) {
  .instructivo__tabs { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .instructivo__tabs { grid-template-columns: 1fr; }
  .instructivo__card { padding: 24px 20px; }
}

/* ─── PAGO LIBRE: MODAL + BANNER ────────────────────────────── */
.pago-modal {
  width: calc(100% - 32px);
  max-width: 420px;
  margin: auto;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  color: var(--text);
  box-shadow: var(--shadow-lg);
}
.pago-modal::backdrop { background: rgba(0, 0, 0, 0.7); }
.pago-modal[open] { animation: pagoIn 0.2s ease-out; }
@keyframes pagoIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}
.pago-modal__form { position: relative; padding: 28px 24px 22px; display: flex; flex-direction: column; gap: 14px; }
.pago-modal__close {
  position: absolute; top: 8px; right: 10px; width: 36px; height: 36px;
  background: transparent; border: none; color: var(--text-secondary);
  font-size: 1.6rem; line-height: 1; cursor: pointer; border-radius: var(--radius-sm);
}
.pago-modal__close:hover { color: var(--text); background: var(--bg-card-hover); }
.pago-modal__title { font-size: 1.3rem; font-weight: 800; padding-right: 32px; }
.pago-modal__amount {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 16px;
}
.pago-modal__plan { color: var(--text-secondary); font-weight: 600; }
.pago-modal__price strong {
  font-size: 1.6rem; font-weight: 900;
  background: var(--gradient-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.pago-modal__price small { color: var(--text-muted); font-size: 0.8rem; }
.pago-modal__field { display: flex; flex-direction: column; gap: 6px; font-size: 0.85rem; font-weight: 600; color: var(--text-secondary); }
.pago-modal__field input {
  width: 100%; padding: 12px 14px; font: inherit; font-size: 1rem; font-weight: 400; color: var(--text);
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.pago-modal__field input:focus { outline: 2px solid var(--primary); outline-offset: 1px; border-color: var(--primary); }
.pago-modal__error { color: #f87171; font-size: 0.88rem; }
.pago-modal__error[hidden], .pago-modal__success[hidden] { display: none; }
.pago-modal__success { color: var(--accent); font-size: 0.88rem; }
.pago-modal__success a { color: var(--primary-hover); text-decoration: underline; }
.pago-modal__submit {
  width: 100%; padding: 14px 20px; border: none; border-radius: var(--radius-sm); cursor: pointer;
  background: #009EE3; color: #fff; font: inherit; font-weight: 700; font-size: 1rem;
  transition: background 0.2s, transform 0.2s;
}
.pago-modal__submit:hover:not(:disabled) { background: #0089c7; transform: translateY(-1px); }
.pago-modal__submit:disabled { opacity: 0.7; cursor: wait; }
.pago-modal__close:focus-visible, .pago-modal__submit:focus-visible, .mp-banner__close:focus-visible { outline: 2px solid var(--primary-hover); outline-offset: 2px; }
.pago-modal__legal { font-size: 0.75rem; color: var(--text-muted); text-align: center; }

.mp-banner {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 16px; color: #fff; font-weight: 600; font-size: 0.95rem;
  background: var(--primary); box-shadow: var(--shadow);
}
.mp-banner[hidden] { display: none; }
.mp-banner--success { background: #16a34a; }
.mp-banner--failure { background: #dc2626; }
.mp-banner--pending { background: #d97706; }
.mp-banner__close { flex: none; width: 32px; height: 32px; background: transparent; border: none; color: #fff; font-size: 1.5rem; line-height: 1; cursor: pointer; }

@media (max-width: 400px) {
  .pago-modal__form { padding: 24px 16px 18px; }
}
@media (prefers-reduced-motion: reduce) {
  .pago-modal[open] { animation: none; }
  .pago-modal__submit, .pago-modal__submit:hover:not(:disabled) { transition: none; transform: none; }
}

button.btn { font-family: inherit; line-height: inherit; }

/* Instructivo: evitar desborde horizontal en pantallas chicas */
.instructivo__card { min-width: 0; }
.instructivo__card code { overflow-wrap: anywhere; word-break: break-word; white-space: normal; }
@media (max-width: 600px) {
  .instructivo__card { padding: 20px; }
}

/* Negritas dentro del texto de un paso: en línea, no como título */
.instructivo__step-item p strong { display: inline; font-size: inherit; margin: 0; }

/* Planes: 4 tarjetas en una fila en escritorio, 2x2 en pantallas medianas */
.pricing__grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1200px) and (min-width: 901px) {
  .pricing__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .pricing__grid { grid-template-columns: 1fr; }
}