/* ============================================================
   VoxPact Landing Page Styles
   ============================================================ */

/* ==================== NAVBAR ==================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  padding: 0 var(--space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  transition: background var(--transition-slow), border-color var(--transition-slow),
              backdrop-filter var(--transition-slow);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(5, 8, 16, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  background: var(--grad-brand);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: var(--text-base);
  color: #fff;
  flex-shrink: 0;
  box-shadow: var(--shadow-glow-sm);
}

.nav-logo-text {
  font-size: var(--text-xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
}

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

.nav-links a {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--muted);
  transition: color var(--transition);
  text-decoration: none;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-login {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--muted);
  transition: color var(--transition);
  text-decoration: none;
}

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

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--space-2);
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--muted);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ==================== LANGUAGE PICKER ==================== */
.lang-picker {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
  white-space: nowrap;
}

.lang-btn:hover {
  color: var(--text);
  border-color: rgba(59, 130, 246, 0.4);
}

.lang-chevron {
  transition: transform var(--transition);
}

.lang-btn[aria-expanded="true"] .lang-chevron {
  transform: rotate(180deg);
}

.lang-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 148px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-2);
  z-index: 200;
  box-shadow: var(--shadow-lg);
  animation: fadeInUp 0.15s ease both;
}

.lang-dropdown.open { display: block; }

.lang-option {
  display: block;
  width: 100%;
  text-align: left;
  padding: var(--space-2) var(--space-3);
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.lang-option:hover {
  background: var(--bg-raised);
  color: var(--text);
}

.lang-option.active {
  color: var(--blue-neon);
  background: var(--blue-dim);
}

/* ==================== NAVBAR RESPONSIVE ==================== */
/* Mobile-only links inside hamburger menu */
.nav-mobile-link { display: none; }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .navbar { padding: 0 var(--space-4); }
  .nav-login { display: none; }

  /* Compact the CTA button on mobile */
  .nav-actions .btn { font-size: var(--text-sm); padding: var(--space-2) var(--space-3); }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    padding: var(--space-4);
    gap: var(--space-3);
    align-items: flex-start;
    z-index: 99;
  }

  /* Show mobile-only links inside hamburger menu */
  .nav-mobile-link {
    display: block;
    padding-top: var(--space-3);
    border-top: 1px solid var(--border);
    width: 100%;
    margin-top: var(--space-1);
  }

  .nav-mobile-link.btn {
    padding: var(--space-3) var(--space-4);
    text-align: center;
    justify-content: center;
    margin-top: var(--space-2);
  }

  /* Language picker inside nav on very small screens */
  .lang-dropdown {
    right: auto;
    left: 0;
  }
}

@media (max-width: 480px) {
  /* Hide lang text on tiny screens — show globe icon only */
  #lang-current { display: none; }
  .lang-chevron  { display: none; }
  .lang-btn { padding: var(--space-2); gap: 0; }
}

/* ==================== HERO ==================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--nav-height);
  background: var(--bg-deep);
}

/* Grid overlay — tighter, more vivid */
.hero-grid {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.07) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 10%, black 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 10%, black 20%, transparent 100%);
  pointer-events: none;
}

/* Bottom fade — content transitions smoothly out of hero */
.hero-fade {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  z-index: 1;
  background: linear-gradient(to bottom, transparent, var(--bg-deep));
  pointer-events: none;
}

/* Glow orbs — bigger and more saturated */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
}

.hero-orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.10) 0%, transparent 65%);
  top: -150px;
  left: -150px;
  filter: blur(80px);
  animation: float 9s ease-in-out infinite;
}

.hero-orb-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.09) 0%, transparent 65%);
  top: 80px;
  right: -120px;
  filter: blur(90px);
  animation: float 11s ease-in-out infinite reverse;
}

/* ---- Hero split layout ---- */
.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  display: grid;
  grid-template-columns: 320px 1fr;
  align-items: center;
  gap: var(--space-8);
  padding: max(var(--space-16), calc(var(--nav-height) + var(--space-12))) var(--space-6) var(--space-16);
}

.hero-text {
  text-align: left;
}

/* ---- Text elements ---- */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--blue-dim);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--blue-neon);
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.6s ease both;
}

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

.hero-headline {
  font-size: clamp(2.6rem, 5vw, var(--text-6xl));
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.6s 0.1s ease both;
}

.hero-headline .line-muted {
  display: block;
  color: var(--muted);
  font-weight: 700;
}

.hero-sub {
  font-size: clamp(var(--text-base), 1.5vw, var(--text-xl));
  color: var(--muted);
  max-width: 520px;
  margin-bottom: var(--space-10);
  line-height: 1.7;
  animation: fadeInUp 0.6s 0.2s ease both;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  animation: fadeInUp 0.6s 0.3s ease both;
}

/* ============================================================
   VOX CHARACTER
   ============================================================ */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: center;
  animation: fadeIn 0.8s 0.4s ease both;
}

.vox-wrap {
  position: relative;
  width: 320px;
  height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Outer ambient glow behind the character */
.vox-wrap::before {
  content: '';
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59,130,246,0.12) 0%, rgba(168,85,247,0.06) 50%, transparent 75%);
  animation: voxAura 5s ease-in-out infinite;
  pointer-events: none;
}

/* The character image */
.vox-svg {
  width: 260px;
  height: 320px;
  object-fit: contain;
  filter: drop-shadow(0 0 20px rgba(59,130,246,0.45))
          drop-shadow(0 0 40px rgba(168,85,247,0.20));
  animation: voxFloat 5s ease-in-out infinite;
  display: block;
}

/* ============================================================
   VOX KEYFRAMES
   ============================================================ */
@keyframes voxFloat {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  25%       { transform: translateY(-14px) rotate(0.5deg); }
  75%       { transform: translateY(8px) rotate(-0.5deg); }
}

@keyframes voxAura {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50%       { opacity: 1;   transform: scale(1.06); }
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 280px 1fr;
  }
  .vox-wrap { width: 260px; height: 300px; }
  .vox-svg  { width: 210px; height: 260px; }
}

@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    padding: var(--space-16) var(--space-4) var(--space-12);
  }
  .hero-text .hero-badge { display: inline-flex; }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .vox-wrap { width: 200px; height: 240px; }
  .vox-svg  { width: 170px; height: 210px; }
}

/* Animated scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--dim);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: fadeIn 1s 1s ease both;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--border), transparent);
  animation: float 2s ease-in-out infinite;
}

/* ==================== HOW IT WORKS ==================== */
.how-it-works {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.how-it-works .section-title,
.how-it-works .section-subtitle {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-12);
  position: relative;
}

.step-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  position: relative;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.step-card:hover {
  border-color: rgba(59, 130, 246, 0.35);
  transform: translateY(-3px);
}

.step-number {
  font-size: var(--text-5xl);
  font-weight: 900;
  line-height: 1;
  margin-bottom: var(--space-5);
  background: var(--grad-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.3;
}

.step-icon {
  width: 48px;
  height: 48px;
  background: var(--blue-dim);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: var(--space-5);
}

.step-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text);
  margin-bottom: var(--space-3);
}

.step-desc {
  font-size: var(--text-base);
  color: var(--muted);
  line-height: 1.7;
}

/* ==================== FEATURES ==================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-12);
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: border-color var(--transition), transform var(--transition);
  position: relative;
}

.feature-card:hover {
  border-color: rgba(59, 130, 246, 0.25);
  transform: translateY(-2px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: var(--space-4);
}

.feature-icon-blue   { background: var(--blue-dim);   }
.feature-icon-cyan   { background: var(--cyan-dim);   }
.feature-icon-purple { background: var(--purple-dim); }
.feature-icon-green  { background: var(--green-dim);  }

.feature-title {
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--text);
  margin-bottom: var(--space-2);
}

.feature-desc {
  font-size: var(--text-sm);
  color: var(--muted);
  line-height: 1.65;
}

/* ==================== PROTOCOL SECTION ==================== */
.protocol-section {
  text-align: center;
}

.protocol-visual {
  max-width: 700px;
  margin: var(--space-12) auto 0;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  text-align: left;
  position: relative;
  overflow: hidden;
}

.protocol-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--blue-dim), transparent 60%, var(--purple-dim));
  pointer-events: none;
}

.protocol-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}

.protocol-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.protocol-line {
  margin-bottom: var(--space-2);
  line-height: 1.8;
}

.p-key   { color: var(--blue-neon); }
.p-str   { color: #22c55e; }
.p-num   { color: var(--yellow); }
.p-obj   { color: var(--purple); }
.p-muted { color: var(--dim); }

/* ==================== CTA BANNER ==================== */
.cta-section {
  padding: var(--space-24) 0;
}

.cta-inner {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-16) var(--space-12);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, transparent 50%, rgba(168, 85, 247, 0.05) 100%);
  pointer-events: none;
}

.cta-title {
  font-size: clamp(var(--text-3xl), 4vw, var(--text-4xl));
  font-weight: 800;
  margin-bottom: var(--space-4);
  position: relative;
}

.cta-subtitle {
  font-size: var(--text-lg);
  color: var(--muted);
  max-width: 500px;
  margin: 0 auto var(--space-8);
  position: relative;
}

.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  position: relative;
}

/* ==================== FOOTER ==================== */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: var(--space-12) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-10);
}

.footer-brand .nav-brand {
  margin-bottom: var(--space-4);
}

.footer-tagline {
  font-size: var(--text-base);
  color: var(--muted);
  line-height: 1.7;
  max-width: 260px;
}

.footer-col-title {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  font-size: var(--text-base);
  color: var(--muted);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--blue-neon); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  gap: var(--space-4);
}

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

.footer-legal {
  display: flex;
  gap: var(--space-5);
}

.footer-legal a {
  font-size: var(--text-sm);
  color: var(--dim);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-legal a:hover { color: var(--muted); }

/* ==================== SECTION RESPONSIVE ==================== */
@media (max-width: 768px) {
  .section { padding: var(--space-16) 0; }
  .section-title { text-align: center; }
  .section-subtitle { text-align: center; }
  .section-label { display: block; margin: 0 auto var(--space-4); }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }

  .cta-inner {
    padding: var(--space-10) var(--space-6);
  }

  /* Protocol code block — scrollable on small screens */
  .protocol-visual {
    overflow-x: auto;
    font-size: var(--text-xs);
    padding: var(--space-5);
  }

  .protocol-header span {
    display: none; /* hide long URL on mobile */
  }

  /* Steps: single column on narrow */
  .steps-grid {
    grid-template-columns: 1fr;
  }

  /* Features: single col on mobile */
  .features-grid {
    grid-template-columns: 1fr;
  }

  /* How It Works section title left-align override */
  .how-it-works .section-title { text-align: center; }
  .how-it-works .section-subtitle { text-align: center; }
}

@media (max-width: 480px) {
  .section { padding: var(--space-12) 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; justify-content: center; }

  /* CTA actions: stack on mobile */
  .cta-actions { flex-direction: column; align-items: stretch; }
  .cta-actions .btn { justify-content: center; }
}