/* ============================================================
   PROX by Puelo.app — Official Website
   Modern · Dynamic · Bilingual ready
   ============================================================ */

:root {
  --purple: #734BE4;
  --purple-dark: #5a35c4;
  --purple-light: #9b7ef0;
  --teal: #28B5CD;
  --teal-dark: #1e9aad;
  --teal-light: #5dd0e3;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --gray: #64748b;
  --gray-light: #94a3b8;
  --bg: #f8fafc;
  --white: #ffffff;
  --gradient-hero: linear-gradient(135deg, #734BE4 0%, #28B5CD 100%);
  --gradient-soft: linear-gradient(135deg, rgba(115,75,228,0.08) 0%, rgba(40,181,205,0.08) 100%);
  --shadow: 0 10px 40px -10px rgba(15, 23, 42, 0.12);
  --shadow-lg: 0 25px 50px -12px rgba(15, 23, 42, 0.18);
  --radius: 16px;
  --radius-sm: 10px;
  --font: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font);
  color: var(--dark);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

ul {
  list-style: none;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

.lead {
  font-size: 1.2rem;
  color: var(--gray);
  max-width: 640px;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-alt {
  background: var(--white);
}

/* ---------- Header / Nav ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--dark);
}

.logo img {
  height: 36px;
  width: auto;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--dark-2);
  transition: color var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--purple);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--purple);
  transition: width var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--bg);
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.lang-switch a {
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  color: var(--gray);
  transition: all var(--transition);
}

.lang-switch a.active {
  background: var(--purple);
  color: white;
}

.lang-switch a:hover:not(.active) {
  color: var(--purple);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 32px;
  height: 32px;
  position: relative;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--dark);
  position: absolute;
  left: 5px;
  transition: var(--transition);
}

.menu-toggle span:nth-child(1) { top: 9px; }
.menu-toggle span:nth-child(2) { top: 15px; }
.menu-toggle span:nth-child(3) { top: 21px; }

/* ---------- Hero ---------- */
.hero {
  padding: 9rem 0 5rem;
  background: var(--gradient-soft);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(115,75,228,0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -15%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(40,181,205,0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: white;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--purple);
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--teal);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.2); }
}

.hero h1 {
  margin-bottom: 1.25rem;
}

.hero h1 .accent {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .lead {
  margin-bottom: 2rem;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.75rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--gradient-hero);
  color: white;
  box-shadow: 0 8px 24px -6px rgba(115, 75, 228, 0.45);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -6px rgba(115, 75, 228, 0.55);
}

.btn-secondary {
  background: white;
  color: var(--dark);
  border: 1.5px solid rgba(15, 23, 42, 0.12);
}

.btn-secondary:hover {
  border-color: var(--purple);
  color: var(--purple);
  transform: translateY(-2px);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-visual img {
  max-width: 420px;
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
}

.hero-float {
  position: absolute;
  background: white;
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  animation: float 4s ease-in-out infinite;
}

.hero-float.one {
  top: 12%;
  left: -10%;
  animation-delay: 0s;
}

.hero-float.two {
  bottom: 18%;
  right: -8%;
  animation-delay: 1.5s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ---------- Stats bar ---------- */
.stats {
  background: var(--dark);
  color: white;
  padding: 2.5rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-item strong {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.25rem;
}

.stat-item span {
  font-size: 0.9rem;
  color: var(--gray-light);
}

/* ---------- Feature cards ---------- */
.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-header .eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--purple);
  margin-bottom: 0.75rem;
}

.section-header .lead {
  margin: 1rem auto 0;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.card {
  background: white;
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border: 1px solid rgba(15, 23, 42, 0.04);
  height: 100%;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.card-icon.purple { background: rgba(115, 75, 228, 0.12); color: var(--purple); }
.card-icon.teal { background: rgba(40, 181, 205, 0.12); color: var(--teal); }

.card h3 {
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--gray);
  font-size: 0.98rem;
}

/* ---------- Two column feature ---------- */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin-bottom: 5rem;
}

.feature-row:last-child {
  margin-bottom: 0;
}

.feature-row.reverse {
  direction: rtl;
}

.feature-row.reverse > * {
  direction: ltr;
}

.feature-content .eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--teal);
  margin-bottom: 0.75rem;
}

.feature-content h2 {
  margin-bottom: 1.25rem;
}

.feature-content p {
  color: var(--gray);
  margin-bottom: 1.5rem;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-weight: 500;
}

.feature-list .check {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(40, 181, 205, 0.15);
  color: var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  margin-top: 2px;
}

.feature-visual {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.feature-visual img {
  width: 100%;
}

/* ---------- How it works steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  counter-reset: step;
}

.step {
  background: white;
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow);
  border: 1px solid rgba(15, 23, 42, 0.04);
  transition: var(--transition);
}

.step:hover {
  transform: translateY(-4px);
}

.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  width: 32px;
  height: 32px;
  background: var(--gradient-hero);
  color: white;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step h4 {
  margin: 1.25rem 0 0.5rem;
  font-size: 1.1rem;
}

.step p {
  font-size: 0.9rem;
  color: var(--gray);
}

/* ---------- Values ---------- */
.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.value-card {
  background: white;
  border-radius: var(--radius);
  padding: 1.75rem;
  display: flex;
  gap: 1.25rem;
  box-shadow: var(--shadow);
  border: 1px solid rgba(15, 23, 42, 0.04);
  transition: var(--transition);
}

.value-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.value-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--gradient-hero);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.value-card h3 {
  margin-bottom: 0.4rem;
  font-size: 1.15rem;
}

.value-card p {
  color: var(--gray);
  font-size: 0.95rem;
}

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--gradient-hero);
  color: white;
  padding: 4.5rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.06'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.cta-band h2 {
  margin-bottom: 1rem;
  position: relative;
}

.cta-band p {
  max-width: 560px;
  margin: 0 auto 2rem;
  opacity: 0.92;
  position: relative;
}

.cta-band .btn {
  position: relative;
  background: white;
  color: var(--purple);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

.cta-band .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0,0,0,0.2);
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-item .icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(115, 75, 228, 0.1);
  color: var(--purple);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-item h4 {
  margin-bottom: 0.25rem;
  font-size: 1rem;
}

.contact-item p,
.contact-item a {
  color: var(--gray);
  font-size: 0.98rem;
}

.contact-item a:hover {
  color: var(--purple);
}

.contact-card {
  background: white;
  border-radius: var(--radius);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(15, 23, 42, 0.04);
}

.contact-card h3 {
  margin-bottom: 0.5rem;
}

.contact-card > p {
  color: var(--gray);
  margin-bottom: 1.75rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1.5px solid rgba(15, 23, 42, 0.12);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition);
  background: var(--bg);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--purple);
  background: white;
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--dark);
  color: white;
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-brand .logo {
  color: white;
  margin-bottom: 1rem;
}

.footer-brand .logo span {
  background: linear-gradient(135deg, #9b7ef0, #5dd0e3);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-brand p {
  color: var(--gray-light);
  font-size: 0.95rem;
  max-width: 280px;
}

.footer h4 {
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
  color: white;
}

.footer ul li {
  margin-bottom: 0.6rem;
}

.footer ul a {
  color: var(--gray-light);
  font-size: 0.95rem;
  transition: color var(--transition);
}

.footer ul a:hover {
  color: var(--teal-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.9rem;
  color: var(--gray-light);
}

/* ---------- Page specific ---------- */
.page-hero {
  padding: 8.5rem 0 3.5rem;
  background: var(--gradient-soft);
  text-align: center;
}

.page-hero h1 {
  margin-bottom: 1rem;
}

.page-hero .lead {
  margin: 0 auto;
}

/* ---------- Animations on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero-grid,
  .feature-row,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .feature-row.reverse {
    direction: ltr;
  }

  .hero-visual {
    order: -1;
  }

  .hero-float {
    display: none;
  }

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

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

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }

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

@media (max-width: 720px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.25rem;
    box-shadow: var(--shadow-lg);
    border-top: 1px solid rgba(15,23,42,0.06);
  }

  .nav-links.open {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .cards-grid,
  .steps,
  .values-grid {
    grid-template-columns: 1fr;
  }

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

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

  .hero {
    padding: 7.5rem 0 3.5rem;
  }

  .section {
    padding: 3.5rem 0;
  }
}