/* ============================================
   PathPro Shared Styles — shared.css
   Design tokens, reset, nav, footer, mobile menu,
   buttons, scroll animations, responsive
   ============================================ */

/* --- Design Tokens --- */
:root {
  /* Background layers */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F8F9FC;
  --bg-card: #FFFFFF;
  --bg-card-hover: #FFFFFF;

  /* Brand colors */
  --violet-deep: #6B21A8;
  --violet-primary: #7C3AED;
  --violet-bright: #8B5CF6;
  --magenta: #D946EF;
  --pink-accent: #EC4899;

  /* Text colors */
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  --text-accent: #7C3AED;

  /* Borders */
  --border-subtle: #E2E8F0;
  --border-card: #E2E8F0;

  /* Functional */
  --success: #10B981;
  --warning: #F59E0B;
  --info: #3B82F6;
  --danger: #EF4444;

  /* Gradients */
  --gradient-brand: linear-gradient(135deg, #7C3AED, #D946EF, #EC4899);
  --gradient-hero: linear-gradient(135deg, #7C3AED 0%, #D946EF 50%, #EC4899 100%);
  --gradient-cta: linear-gradient(135deg, #7C3AED, #9333EA);
  --gradient-cta-hover: linear-gradient(135deg, #6D28D9, #7C3AED);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --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: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-hero: clamp(2.5rem, 5vw, 4.5rem);

  /* Spacing */
  --section-padding: clamp(4rem, 8vw, 7rem);
  --container-max: 1200px;

  /* Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 0 0 1px rgba(0, 0, 0, 0.04);
  --shadow-card-hover: 0 8px 30px rgba(124, 58, 237, 0.12), 0 0 0 1px rgba(124, 58, 237, 0.08);
  --shadow-glow: 0 0 60px rgba(124, 58, 237, 0.15);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.08);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);

  /* ---- Legacy aliases (for pricing page compat) ---- */
  --color-primary: #7C3AED;
  --color-primary-dark: #6D28D9;
  --color-primary-light: rgba(124, 58, 237, 0.08);
  --color-text: #0F172A;
  --color-text-secondary: #475569;
  --color-text-muted: #94A3B8;
  --color-text-faint: #CBD5E1;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F8F9FC;
  --color-bg-dark: #0F172A;
  --color-border: #E2E8F0;
  --color-border-light: #F1F5F9;
  --color-success: #10B981;
  --color-success-bg: rgba(16, 185, 129, 0.08);
  --radius-pill: 9999px;
  --transition-normal: 250ms ease;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text-secondary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg {
  display: block;
  max-width: 100%;
}

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

ul {
  list-style: none;
}

/* --- Utilities --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  padding: 0.5rem 1rem;
  background: var(--violet-primary);
  color: #FFFFFF;
  border-radius: var(--radius-sm);
  z-index: 200;
  font-weight: 600;
}

.skip-link:focus {
  top: 1rem;
}

/* ============================================
   BUTTONS — New design
   ============================================ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: var(--gradient-cta);
  color: #FFFFFF;
  font-weight: 600;
  font-size: var(--text-base);
  font-family: var(--font-family);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary:hover {
  background: var(--gradient-cta-hover);
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: #FFFFFF;
  color: var(--text-primary);
  font-weight: 600;
  font-size: var(--text-base);
  font-family: var(--font-family);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-secondary:hover {
  background: #F8F9FC;
  border-color: var(--violet-primary);
  color: var(--violet-primary);
}

.btn-sm {
  padding: 0.625rem 1.5rem;
  font-size: var(--text-sm);
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: var(--text-lg);
}

/* ---- Legacy button compat (pricing page JS) ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: var(--text-sm);
  font-weight: 600;
  font-family: var(--font-family);
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--gradient-cta);
  color: #FFFFFF;
  border: none;
}

.btn--primary:hover {
  background: var(--gradient-cta-hover);
  color: #FFFFFF;
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.35);
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.btn--outline:hover {
  background: #F8F9FC;
  border-color: var(--violet-primary);
  color: var(--violet-primary);
}

.btn--large {
  padding: 0.875rem 2rem;
  font-size: var(--text-base);
}

.btn--white {
  background: #fff;
  color: var(--violet-primary);
  border: 1px solid var(--border-subtle);
}

.btn--white:hover {
  background: var(--bg-secondary);
  border-color: var(--violet-primary);
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  border-bottom: 1px solid transparent;
}

.nav::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px) saturate(1.5);
  -webkit-backdrop-filter: blur(20px) saturate(1.5);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
  z-index: -1;
  transform: translateY(-100%);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.nav--scrolled::before {
  transform: translateY(0);
  opacity: 1;
  transition: transform 0.3s ease, opacity 0.01s;
}

.nav--scrolled {
  border-bottom-color: transparent;
}

.nav--scrolled .nav__logo-img {
  margin-top: 0;
}

/* Dark header variant — for pages with dark hero backgrounds */
body.dark-hero .nav:not(.nav--scrolled) {
  background: transparent;
  border-bottom-color: transparent;
  box-shadow: none;
}

body.dark-hero .nav:not(.nav--scrolled) .nav__logo-img {
  content: url('../images/logo-footer.png');
}

body.dark-hero .nav:not(.nav--scrolled) .nav__links a {
  color: rgba(255, 255, 255, 0.7);
}

body.dark-hero .nav:not(.nav--scrolled) .nav__links a:hover {
  color: #FFFFFF;
}

body.dark-hero .nav:not(.nav--scrolled) .nav__dropdown-trigger {
  color: rgba(255, 255, 255, 0.7);
}

body.dark-hero .nav:not(.nav--scrolled) .nav__dropdown-trigger:hover,
body.dark-hero .nav:not(.nav--scrolled) .nav__dropdown.is-open .nav__dropdown-trigger {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.1);
}

body.dark-hero .nav:not(.nav--scrolled) .nav__cta {
  background: #1E0A3C;
}

body.dark-hero .nav:not(.nav--scrolled) .nav__mobile-toggle span {
  background: #FFFFFF;
}

.nav__container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.nav__logo-img {
  height: 40px;
  width: auto;
  margin-top: -.8rem;
  transition: margin-top 0.3s ease;
}

.nav__links,
.nav__cta {
  transition: opacity 0.25s ease;
}

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

.nav__links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

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

.nav__sup {
  font-size: 0.55em;
  vertical-align: super;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-left: 1px;
}

/* Dropdown */
.nav__dropdown {
  position: relative;
}

.nav__dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 4px;
  transition: color var(--transition-fast), background var(--transition-fast);
  font-family: var(--font-family);
}

.nav__dropdown-trigger:hover,
.nav__dropdown.is-open .nav__dropdown-trigger {
  color: var(--text-primary);
  background: rgba(124, 58, 237, 0.08);
}

.nav__dropdown-trigger svg {
  transition: transform 0.2s ease;
}

.nav__dropdown.is-open .nav__dropdown-trigger svg {
  transform: rotate(180deg);
}

.nav__dropdown-panel {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  width: 680px;
  background: linear-gradient(315deg, rgba(30, 10, 60, 0.82) 0%, rgba(26, 10, 46, 0.78) 50%, rgba(35, 15, 65, 0.80) 100%);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3), 0 2px 8px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  padding: 8px;
}

.nav__dropdown.is-open .nav__dropdown-panel {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav__dropdown-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
}

.nav__dropdown-panel--compact {
  width: 680px;
}

.nav__dropdown-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background var(--transition-fast);
}

.nav__dropdown-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(124, 58, 237, 0.15);
  border-radius: var(--radius-sm);
  margin-top: 1px;
}

.nav__dropdown-icon svg {
  width: 18px;
  height: 18px;
  color: #a78bfa;
}

.nav__dropdown-item:hover {
  background: rgba(255, 255, 255, 0.06);
}

.nav__dropdown-title {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: #F1F5F9;
  margin-bottom: 4px;
}

.nav__dropdown-desc {
  display: block;
  font-size: 0.8125rem;
  color: #94A3B8;
  line-height: 1.4;
}

/* Interior pages — fade in/out instead of slide */
.nav--light-dropdowns::before {
  background: rgba(255, 255, 255, 0.79);
  transform: none;
  transition: opacity 0.3s ease;
}

.nav--light-dropdowns.nav--scrolled::before {
  transition: opacity 0.3s ease;
}

/* Light-mode dropdowns (interior pages) — liquid glass */
.nav--light-dropdowns .nav__dropdown-panel {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.85) 0%,
    rgba(235, 235, 240, 0.85) 100%
  );
  backdrop-filter: blur(24px) saturate(1.6);
  -webkit-backdrop-filter: blur(24px) saturate(1.6);
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.08),
    0 2px 8px rgba(0, 0, 0, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.8),
    inset 0 -1px 0 rgba(255, 255, 255, 0.3);
}

.nav--light-dropdowns .nav__dropdown-icon {
  background: rgba(99, 60, 200, 0.08);
}

.nav--light-dropdowns .nav__dropdown-icon svg {
  color: #6D28D9;
}

.nav--light-dropdowns .nav__dropdown-title {
  color: #1E293B;
}

.nav--light-dropdowns .nav__dropdown-desc {
  color: #64748B;
}

.nav--light-dropdowns .nav__dropdown-item:hover {
  background: rgba(99, 60, 200, 0.06);
}

/* Mobile menu product sub-items */
.mobile-menu__product-label {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.mobile-menu__product-item {
  font-size: var(--text-xl) !important;
  font-weight: 500 !important;
  color: var(--text-secondary) !important;
  padding-left: 1rem;
}

.nav__cta {
  /* inherits from .btn-primary .btn-sm */
}

.nav__mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__mobile-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* Mobile menu overlay */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 99;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.mobile-menu.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu__links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.mobile-menu__links a {
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.mobile-menu__links a:hover {
  color: var(--violet-primary);
}

/* Hamburger open state */
body.nav--open .nav__mobile-toggle span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
body.nav--open .nav__mobile-toggle span:nth-child(2) {
  opacity: 0;
}
body.nav--open .nav__mobile-toggle span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: #0F172A;
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--border-subtle);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer__logo {
  font-size: var(--text-2xl);
  font-weight: 800;
  display: inline-block;
  margin-bottom: 0.75rem;
}

.footer__logo-img {
  height: 36px;
  width: auto;
  display: block;
  margin-bottom: 0.75rem;
}

.footer__tagline {
  font-size: var(--text-sm);
  color: #94A3B8;
  max-width: 280px;
}

.footer__heading {
  font-size: var(--text-sm);
  font-weight: 600;
  color: #F8FAFC;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.footer__list a {
  font-size: var(--text-sm);
  color: #94A3B8;
  transition: color var(--transition-fast);
}

.footer__list a:hover {
  color: #F8FAFC;
}

.footer__bottom {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: #64748B;
  font-size: var(--text-sm);
}

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo);
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */

/* Tablet */
@media (max-width: 1024px) {
  .nav__links {
    display: none;
  }

  .nav__cta {
    display: none;
  }

  .nav__mobile-toggle {
    display: flex;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .footer__brand {
    grid-column: 1 / -1;
  }
}

/* Small mobile */
@media (max-width: 480px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }
}

/* --- FAQ --- */
.faq {
  padding: var(--section-padding) 0;
  background: var(--color-bg-alt);
}

.faq--no-top-padding {
  padding-top: 0;
}

.faq__header {
  text-align: center;
  margin-bottom: 48px;
}

.faq__header h2 {
  font-size: clamp(1.5rem, 3vw, 1.875rem);
  font-weight: 800;
  color: var(--color-text);
}

.faq__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.faq__item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
}

.faq__item h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.faq__item p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.65;
}

@media (max-width: 768px) {
  .faq__grid {
    grid-template-columns: 1fr;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll {
    opacity: 1;
    transform: none;
    transition: none;
  }

  html {
    scroll-behavior: auto;
  }
}