/* ============================================
   BYM Digital – Modern Design System
   ============================================ */

:root {
  /* Colors – dark, sophisticated */
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --surface: #1c1c28;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.12);

  --text: #f4f4f5;
  --text-muted: #a1a1aa;
  --text-dim: #71717a;

  --accent: #22d3ee;
  --accent-soft: rgba(34, 211, 238, 0.15);
  --accent-glow: rgba(34, 211, 238, 0.4);
  --accent-hover: #67e8f9;

  --success: #34d399;
  --warning: #fbbf24;

  /* Typography */
  --font-sans: 'Outfit', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3.5rem;
  --text-6xl: 4.5rem;
  --text-7xl: 5.5rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --container: min(100% - 2rem, 1200px);
  --header-h: 4.5rem;
  --radius: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;

  /* Motion */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 0.25s;
  --dur-slow: 0.4s;
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

/* Skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  z-index: 9999;
  padding: var(--space-2) var(--space-4);
  background: var(--accent);
  color: var(--bg);
  border-radius: var(--radius);
  font-weight: 600;
  transition: top var(--dur) var(--ease);
}
.skip-link:focus { top: var(--space-4); }

/* Container */
.container { width: 100%; max-width: 1200px; margin-inline: auto; padding-inline: 1.5rem; }

/* ========== Header ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-4) 0;
  transition: background var(--dur) var(--ease), backdrop-filter var(--dur) var(--ease);
}
.header.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.logo {
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.logo-text { color: var(--text); }
.logo-accent { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--dur) var(--ease);
}
.nav-links a:hover { color: var(--accent); }

.nav-cta { flex-shrink: 0; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: var(--space-2);
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.5rem;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius);
  transition: all var(--dur) var(--ease);
}
.btn-primary {
  background: var(--accent);
  color: var(--bg);
}
.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 0 24px var(--accent-glow);
  transform: translateY(-1px);
}
.btn-ghost {
  color: var(--text-muted);
  border: 1px solid var(--border-strong);
}
.btn-ghost:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}
.btn-cta {
  background: var(--accent);
  color: var(--bg);
}
.btn-cta:hover {
  background: var(--accent-hover);
  box-shadow: 0 0 20px var(--accent-glow);
}

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + var(--space-16)) 0 var(--space-16);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, var(--accent-soft) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 100% 50%, rgba(34, 211, 238, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 0% 80%, rgba(34, 211, 238, 0.06) 0%, transparent 50%);
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 20%, transparent 70%);
}
.hero-glow {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.3;
  animation: float 12s ease-in-out infinite;
}
.hero-glow-1 { top: 10%; left: 10%; background: var(--accent); }
.hero-glow-2 { bottom: 20%; right: 10%; background: var(--accent); animation-delay: -6s; }

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -30px); }
}

.hero-inner { position: relative; z-index: 1; }

.hero-badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(34, 211, 238, 0.3);
  border-radius: 999px;
  margin-bottom: var(--space-6);
  animation: fadeUp 0.8s var(--ease-out) both;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, var(--text-7xl));
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
  animation: fadeUp 0.8s var(--ease-out) 0.1s both;
}
.text-gradient {
  background: linear-gradient(135deg, var(--accent) 0%, #67e8f9 50%, var(--accent) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s ease infinite;
}
@keyframes gradientShift {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 100% center; }
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: var(--space-8);
  animation: fadeUp 0.8s var(--ease-out) 0.2s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-10);
  animation: fadeUp 0.8s var(--ease-out) 0.3s both;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  animation: fadeUp 0.8s var(--ease-out) 0.4s both;
}
.pill {
  font-size: var(--text-sm);
  color: var(--text-dim);
  padding: var(--space-1) var(--space-3);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.pill:hover {
  color: var(--text-muted);
  border-color: var(--border-strong);
}

.hero-scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  border-radius: 2px;
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========== Sections ========== */
.section {
  padding: var(--space-24) 0;
}
.section-label {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-3);
}
.section-title {
  font-size: clamp(1.75rem, 4vw, var(--text-4xl));
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}
.section-text { color: var(--text-muted); margin-bottom: var(--space-6); }
.section-text-center { max-width: 560px; margin-inline: auto; }

/* Partner */
.section-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}
.partner-list {
  margin: var(--space-6) 0;
}
.partner-list li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 500;
  color: var(--text);
  margin-bottom: var(--space-2);
}
.check::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 20px;
  background: var(--accent);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/contain no-repeat;
  flex-shrink: 0;
}
.partner-note { color: var(--text-muted); font-size: var(--text-sm); }

.partner-visual { position: relative; }
.visual-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 24px 48px rgba(0,0,0,0.4);
}
.visual-card img { width: 100%; }
.visual-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.4) 0%, transparent 50%);
  pointer-events: none;
}

/* Services */
.services { background: var(--bg-elevated); }
.section-header { text-align: center; margin-bottom: var(--space-12); }
.section-header .section-text { margin-inline: auto; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--dur-slow) var(--ease-out), box-shadow var(--dur-slow) var(--ease), border-color var(--dur) var(--ease);
  opacity: 0;
  animation: fadeUp 0.6s var(--ease-out) calc(0.1s * var(--delay, 0)) both;
}
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  border-color: rgba(34, 211, 238, 0.2);
}
.service-image {
  aspect-ratio: 16/10;
  overflow: hidden;
}
.service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease);
}
.service-card:hover .service-image img { transform: scale(1.05); }
.service-body { padding: var(--space-6); }
.service-body h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.service-body p { color: var(--text-muted); font-size: var(--text-sm); }

/* Subscribe */
.subscribe-card {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-12);
  align-items: center;
  background: linear-gradient(135deg, var(--surface) 0%, var(--bg-card) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-12);
  overflow: hidden;
}
.subscribe-content h2 {
  font-size: var(--text-3xl);
  font-weight: 700;
  margin-bottom: var(--space-3);
}
.subscribe-content p { color: var(--text-muted); margin-bottom: var(--space-6); }
.subscribe-form {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.subscribe-form input {
  flex: 1;
  min-width: 200px;
  padding: 0.875rem 1.25rem;
  font-size: var(--text-base);
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  outline: none;
  transition: border-color var(--dur) var(--ease);
}
.subscribe-form input::placeholder { color: var(--text-dim); }
.subscribe-form input:focus { border-color: var(--accent); }
.subscribe-visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.subscribe-visual img { width: 100%; height: 100%; object-fit: cover; }

/* Testimonials */
.testimonials-slider { overflow: hidden; }
.testimonials-track {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.testimonial-card:hover {
  border-color: rgba(34, 211, 238, 0.2);
  transform: translateY(-2px);
}
.testimonial-stars {
  color: var(--warning);
  font-size: var(--text-lg);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}
.testimonial-card blockquote {
  font-size: var(--text-lg);
  font-style: normal;
  color: var(--text-muted);
  margin-bottom: var(--space-6);
  line-height: 1.7;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.testimonial-author img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
}
.testimonial-author strong { font-size: var(--text-base); }

/* ========== Footer ========== */
.footer {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  padding: var(--space-20) 0 var(--space-8);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}
.footer-brand .logo { display: inline-block; margin-bottom: var(--space-4); }
.footer-brand p { color: var(--text-muted); font-size: var(--text-sm); max-width: 260px; }
.footer-links h4, .footer-contact h4, .footer-newsletter h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}
.footer-links ul, .footer-contact ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.footer-links a, .footer-contact a {
  font-size: var(--text-sm);
  color: var(--text-muted);
  transition: color var(--dur) var(--ease);
}
.footer-links a:hover, .footer-contact a:hover { color: var(--accent); }
.footer-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.footer-form input {
  padding: 0.75rem 1rem;
  font-size: var(--text-sm);
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  outline: none;
}
.footer-form input:focus { border-color: var(--accent); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border);
}
.footer-bottom p { font-size: var(--text-sm); color: var(--text-dim); }
.footer-whatsapp {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--accent);
  transition: color var(--dur) var(--ease);
}
.footer-whatsapp:hover { color: var(--accent-hover); }

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .section-split { grid-template-columns: 1fr; }
  .partner-visual { order: -1; max-width: 560px; margin-inline: auto; }
  .services-grid { grid-template-columns: 1fr; }
  .subscribe-card { grid-template-columns: 1fr; }
  .subscribe-visual { max-height: 280px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .nav.open .nav-links {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    padding: var(--space-6);
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
  }
  .nav.open .nav-cta { display: inline-flex; margin-top: var(--space-4); }
  .nav.open .nav-toggle span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .nav.open .nav-toggle span:nth-child(2) { opacity: 0; }
  .nav.open .nav-toggle span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-pills { max-width: 100%; }
  .testimonials-track { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .footer-brand p { max-width: none; }
  .footer-bottom { flex-direction: column; }
}

@media (max-width: 480px) {
  .subscribe-form { flex-direction: column; }
  .subscribe-form input { min-width: 100%; }
  .subscribe-card { padding: var(--space-6); }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}