/*
 * fluid.css — ODIV Engage Fluid Responsive Design System
 *
 * PURPOSE: Viewport-fluid design layer — every element adapts using
 *          clamp(), container queries, and relative units.
 *          NO brittle pixel breakpoints for layout decisions.
 *
 * MUST NOT OVERRIDE: Existing :root variables in variables.css,
 *          existing component styles in components.css,
 *          existing section styles in sections.css.
 *          This file only EXTENDS with --fluid- prefixed tokens.
 *
 * APPROACH: fluid-first — elements scale with viewport/container,
 *           @media queries used only as progressive enhancement.
 *
 * EXISTING @media BREAKPOINTS (from audit):
 *   1250px — desktop nav shows (layout.css)
 *   992px  — pricing grid 2-col, hero 2-col (sections.css)
 *   820px  — base plans 3-col tablet (sections.css)
 *   768px  — footer grid, two-col-layout (layout.css)
 *   600px  — pricing toggles stack, small mobile (sections.css)
 *   540px  — (sections.css)
 *   480px  — (sections.css, i18n.css)
 *
 * EXISTING Z-INDEX STACK (from audit):
 *   navbar: 100 | mobile-nav: 99 | mobile-cart-bar: 999
 *   modal-overlay: 1000 | cart-drawer-overlay: 9999
 *   i18n dropdown: 9999
 */

/* ══════════════════════════════════════════════════════════════════
   1A. FLUID DESIGN TOKENS
   ══════════════════════════════════════════════════════════════ */

:root {
  /* ── Fluid spacing — scales from narrow phone to wide desktop ── */
  --fluid-space-3xs: clamp(0.25rem, 0.5vw, 0.375rem);
  --fluid-space-2xs: clamp(0.375rem, 0.75vw, 0.625rem);
  --fluid-space-xs:  clamp(0.5rem, 1vw, 0.875rem);
  --fluid-space-s:   clamp(0.75rem, 1.5vw, 1.25rem);
  --fluid-space-m:   clamp(1rem, 2vw, 1.75rem);
  --fluid-space-l:   clamp(1.5rem, 3vw, 2.5rem);
  --fluid-space-xl:  clamp(2rem, 5vw, 4rem);
  --fluid-space-2xl: clamp(3rem, 7vw, 6rem);
  --fluid-space-3xl: clamp(4rem, 10vw, 9rem);

  /* ── Fluid typography — proportional to viewport width ── */
  --fluid-text-xs:   clamp(0.694rem, 1.5vw, 0.8rem);
  --fluid-text-s:    clamp(0.833rem, 2vw, 1rem);
  --fluid-text-m:    clamp(1rem, 2.5vw, 1.25rem);
  --fluid-text-l:    clamp(1.2rem, 3.5vw, 1.602rem);
  --fluid-text-xl:   clamp(1.44rem, 4.5vw, 2.074rem);
  --fluid-text-2xl:  clamp(1.728rem, 6vw, 2.986rem);
  --fluid-text-hero: clamp(2rem, 8vw, 4.5rem);

  /* ── Fluid containers ── */
  --fluid-container:        min(92vw, 1280px);
  --fluid-container-narrow: min(88vw, 760px);
  --fluid-container-wide:   min(96vw, 1600px);

  /* ── Fluid radius ── */
  --fluid-radius-s: clamp(8px, 1.5vw, 12px);
  --fluid-radius-m: clamp(12px, 2vw, 20px);
  --fluid-radius-l: clamp(16px, 3vw, 32px);

  /* ── Safe area insets — notched/curved-screen devices ── */
  --safe-top:    env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left:   env(safe-area-inset-left, 0px);
  --safe-right:  env(safe-area-inset-right, 0px);
}


/* ══════════════════════════════════════════════════════════════════
   1B. FLUID GRID SYSTEM
   ══════════════════════════════════════════════════════════════ */

.fluid-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: var(--fluid-space-m);
}

.fluid-grid--2up {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr));
  gap: var(--fluid-space-l);
}

.fluid-grid--plans {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: var(--fluid-space-m);
  align-items: stretch;
}


/* ══════════════════════════════════════════════════════════════════
   1C. iOS / ANDROID / ACCESSIBILITY FIXES
   ══════════════════════════════════════════════════════════════ */

/* Prevent iOS text size adjustment on orientation change */
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

/* iOS tap highlight */
a, button, [role="button"] {
  -webkit-tap-highlight-color: rgba(37, 211, 102, 0.15);
}

/* Focus visible for keyboard users */
:focus-visible {
  outline: 2px solid var(--accent-green);
  outline-offset: 3px;
  border-radius: 4px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* Font rendering */
body {
  text-rendering: optimizeLegibility;
}

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


/* ══════════════════════════════════════════════════════════════════
   2. NAVIGATION — FLUID RESPONSIVE
   ══════════════════════════════════════════════════════════════ */

/* Enhanced mobile nav overlay (replaces basic .mobile-nav-menu) */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(15, 17, 23, 0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--fluid-space-l);
  padding: var(--fluid-space-xl) var(--fluid-space-l);
  padding-top: calc(var(--fluid-space-xl) + var(--safe-top));
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition:
    transform 0.4s cubic-bezier(0.32, 0.72, 0, 1),
    opacity 0.3s ease,
    visibility 0s 0.4s;
  pointer-events: none;
}

.mobile-nav-overlay.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  transition:
    transform 0.4s cubic-bezier(0.32, 0.72, 0, 1),
    opacity 0.3s ease,
    visibility 0s 0s;
  pointer-events: all;
}

.mobile-nav-overlay .nav-link {
  font-size: var(--fluid-text-xl);
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.01em;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: color 0.2s ease, opacity 0.2s ease;
}

.mobile-nav-overlay .nav-link:hover,
.mobile-nav-overlay .nav-link:active {
  color: var(--accent-green);
}

.mobile-nav-overlay .nav-cta {
  margin-top: var(--fluid-space-m);
  width: 100%;
  text-align: center;
}


/* ══════════════════════════════════════════════════════════════════
   3. MOBILE STICKY BOTTOM CTA BAR
   ══════════════════════════════════════════════════════════════ */

.mobile-cta-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9998;
  padding-bottom: calc(var(--fluid-space-s) + var(--safe-bottom));
  padding-top: var(--fluid-space-s);
  padding-inline: var(--fluid-space-m);
  background: rgba(15, 17, 23, 0.92);
  backdrop-filter: blur(20px) saturate(1.6);
  -webkit-backdrop-filter: blur(20px) saturate(1.6);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: var(--fluid-space-m);
  transform: translateY(100%);
  opacity: 0;
  transition:
    transform 0.4s cubic-bezier(0.32, 0.72, 0, 1),
    opacity 0.3s ease;
}

.mobile-cta-bar.is-visible {
  transform: translateY(0);
  opacity: 1;
}

.mobile-cta-bar__left {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  min-width: 0;
}

.mobile-cta-bar__label {
  font-size: var(--fluid-text-xs);
  font-weight: 700;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mobile-cta-bar__sub {
  font-size: var(--fluid-text-s);
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mobile-cta-bar__right {
  display: flex;
  align-items: center;
  gap: var(--fluid-space-xs);
  flex-shrink: 0;
}

.mobile-cta-bar__cart-badge {
  min-width: 22px;
  height: 22px;
  border-radius: 999px;
  background: var(--color-error);
  color: #fff;
  font-size: var(--fluid-text-xs);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-inline: 4px;
  animation: badge-pop 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes badge-pop {
  from { transform: scale(0); }
  to   { transform: scale(1); }
}

.mobile-cta-bar__btn {
  background: var(--accent-green);
  color: #000;
  border: none;
  border-radius: var(--radius-lg);
  padding: var(--fluid-space-xs) var(--fluid-space-l);
  font-size: var(--fluid-text-s);
  font-weight: 700;
  font-family: var(--font-sans);
  letter-spacing: -0.01em;
  cursor: pointer;
  white-space: nowrap;
  min-height: 44px;
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.mobile-cta-bar__btn:active {
  transform: scale(0.96);
  opacity: 0.9;
}

/* Show only on narrow viewports */
@media (max-width: 991px) {
  .mobile-cta-bar { display: flex; }
}

@media (min-width: 992px) {
  .mobile-cta-bar { display: none !important; }
}


/* ══════════════════════════════════════════════════════════════════
   4. MOBILE KART (CART) BOTTOM SHEET DRAWER
   ══════════════════════════════════════════════════════════════ */

.mobile-kart-drawer {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
}

@media (max-width: 991px) {
  .mobile-kart-drawer { display: block; }
}

.mobile-kart-drawer__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}

.mobile-kart-drawer__sheet {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding-bottom: var(--safe-bottom);
  max-height: 92dvh;
  max-height: 92vh;
  border-radius: var(--fluid-radius-l) var(--fluid-radius-l) 0 0;
  background: var(--bg-card);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateY(100%);
  transition: transform 0.4s cubic-bezier(0.32, 0.72, 0, 1);
  pointer-events: none;
  will-change: transform;
}

.mobile-kart-drawer.is-open .mobile-kart-drawer__backdrop {
  opacity: 1;
  pointer-events: all;
}

.mobile-kart-drawer.is-open .mobile-kart-drawer__sheet {
  transform: translateY(0);
  pointer-events: all;
}

.mobile-kart-drawer__handle {
  width: clamp(32px, 8vw, 48px);
  height: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.2);
  margin: var(--fluid-space-s) auto var(--fluid-space-xs);
  flex-shrink: 0;
}

.mobile-kart-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: var(--fluid-space-m);
  padding-bottom: var(--fluid-space-s);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  flex-shrink: 0;
}

.mobile-kart-drawer__title {
  font-size: var(--fluid-text-l);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.mobile-kart-drawer__close {
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.06);
  border: none;
  border-radius: var(--fluid-radius-s);
  font-size: var(--fluid-text-m);
  cursor: pointer;
  color: var(--text-primary);
  transition: background 0.15s ease;
}

.mobile-kart-drawer__close:hover {
  background: rgba(255, 255, 255, 0.12);
}

.mobile-kart-drawer__body {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  padding: var(--fluid-space-m);
}

/* Reset cart sidebar styles when inside drawer */
.mobile-kart-drawer__body .pricing-cart-sticky {
  position: static !important;
  max-height: none !important;
  overflow: visible !important;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  padding: 0 !important;
  width: 100% !important;
}

body.kart-drawer-open {
  overflow: hidden;
  touch-action: none;
}


/* ══════════════════════════════════════════════════════════════════
   5. PRICING PAGE — FLUID PLAN CARD ENHANCEMENTS
   ══════════════════════════════════════════════════════════════ */

/* Industry bundles scroll hint — mobile only */
.industry-bundles-scroll-hint {
  display: none;
  text-align: center;
  font-size: var(--fluid-text-xs);
  color: var(--text-muted);
  margin-bottom: var(--fluid-space-xs);
  letter-spacing: 0.04em;
}

@media (max-width: 991px) {
  .industry-bundles-scroll-hint { display: block; }
}

/* Addon qty controls — bigger touch targets on mobile */
@media (max-width: 768px) {
  .qty-btn {
    min-width: 40px;
    min-height: 40px;
  }
}


/* ══════════════════════════════════════════════════════════════════
   6. COMPARISON TABLE — RESPONSIVE STRATEGY
   ══════════════════════════════════════════════════════════════ */

/* Scrollable wrapper for existing comparison table */
.comparison-scroll-wrap {
  position: relative;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  border-radius: var(--radius-xl);
  -webkit-mask-image: linear-gradient(to right, black 0%, black 85%, transparent 100%);
  mask-image: linear-gradient(to right, black 0%, black 85%, transparent 100%);
}

.comparison-scroll-wrap.is-end {
  -webkit-mask-image: none;
  mask-image: none;
}

/* Sticky first column */
.comparison-scroll-wrap .compare-table th:first-child,
.comparison-scroll-wrap .compare-table td:first-child {
  position: sticky;
  left: 0;
  z-index: 2;
  background: var(--bg-card);
  min-width: clamp(120px, 28vw, 180px);
  max-width: clamp(120px, 28vw, 180px);
  font-size: var(--fluid-text-xs);
  white-space: normal;
  word-break: break-word;
  box-shadow: 4px 0 12px rgba(0, 0, 0, 0.3);
}

.comparison-scroll-wrap .compare-table th,
.comparison-scroll-wrap .compare-table td {
  min-width: clamp(100px, 22vw, 160px);
  scroll-snap-align: start;
}

/* Scroll hint text */
.comparison-scroll-hint {
  display: none;
  text-align: center;
  font-size: var(--fluid-text-xs);
  color: var(--text-muted);
  margin-bottom: var(--fluid-space-xs);
  letter-spacing: 0.04em;
}

@media (max-width: 991px) {
  .comparison-scroll-hint { display: block; }
}

/* Mobile comparison cards are handled by compare.css (.cmp-mobile-cards) */


/* ══════════════════════════════════════════════════════════════════
   7. SCROLL-REVEAL ANIMATIONS
   ══════════════════════════════════════════════════════════════ */

.reveal,
[data-reveal] {
  opacity: 0;
  transform: translateY(clamp(16px, 3vw, 32px));
  transition:
    opacity 0.55s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.is-visible,
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delay for grid children */
.fluid-grid > *:nth-child(1)  { transition-delay: 0.00s; }
.fluid-grid > *:nth-child(2)  { transition-delay: 0.07s; }
.fluid-grid > *:nth-child(3)  { transition-delay: 0.14s; }
.fluid-grid > *:nth-child(4)  { transition-delay: 0.21s; }
.fluid-grid > *:nth-child(5)  { transition-delay: 0.28s; }
.fluid-grid > *:nth-child(6)  { transition-delay: 0.35s; }
.fluid-grid > *:nth-child(7)  { transition-delay: 0.42s; }
.fluid-grid > *:nth-child(8)  { transition-delay: 0.49s; }
.fluid-grid > *:nth-child(n+9) { transition-delay: 0s; }


/* ══════════════════════════════════════════════════════════════════
   8. FOOTER — MOBILE PADDING FOR STICKY BARS
   ══════════════════════════════════════════════════════════════ */

@media (max-width: 991px) {
  .site-footer {
    padding-bottom: calc(var(--space-4) + 80px + var(--safe-bottom));
  }
}