/* ==========================================================================
   Zahir Khan | Elite Personal Fitness Coach
   Custom styles (works alongside Tailwind Play CDN utilities)
   ========================================================================== */

:root {
  --zk-black: #050505;
  --zk-dark: #121212;
  --zk-gray: #1e1e1e;
  --zk-green: #ccff00;
  --zk-muted: #9ca3af;
  --wa-green: #075e54;
  --wa-green-hover: #128c7e;
}

html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  background-color: var(--zk-black);
  color: #fff;
  overflow-x: hidden;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
.font-heading { font-family: Poppins, system-ui, -apple-system, sans-serif; }
@media (max-width: 1023px) { body { padding-bottom: calc(4.75rem + env(safe-area-inset-bottom, 0px)); } }
body.menu-open { overflow: hidden; touch-action: none; }
::selection { background-color: var(--zk-green); color: var(--zk-black); }

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 10000;
  padding: 0.75rem 1.25rem;
  background: var(--zk-green);
  color: var(--zk-black);
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: 0.25rem;
}
.skip-link:focus {
  top: 1rem;
}

@media (max-width: 1023px) {
  .hero-cinematic .stat-card.glass-panel {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: var(--zk-dark);
  }
}

/* Scroll Progress Bar */
#scroll-progress {
  position: fixed; top: 0; left: 0; width: 0%; height: 4px;
  background-color: var(--zk-green); z-index: 9999;
  box-shadow: 0 0 10px var(--zk-green);
  transition: width 0.1s ease;
}

/* Glassmorphism */
.glass-panel {
  background: rgba(18, 18, 18, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Text Effects */
.text-outline {
  -webkit-text-stroke: 1.5px var(--zk-green);
  text-stroke: 1.5px var(--zk-green);
  color: transparent;
}
.text-shadow-hero { text-shadow: 0 2px 30px rgba(0, 0, 0, 0.6); }

/* Interactive Cards */
.hover-card { transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease; }
.hover-card:hover {
  transform: translateY(-8px);
  border-color: var(--zk-green);
  box-shadow: 0 10px 30px -10px rgba(204, 255, 0, 0.15);
}

/* Sliders */
.hide-scrollbar::-webkit-scrollbar { display: none; }
.hide-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }
.snap-slider { scroll-snap-type: x mandatory; }
.snap-item { scroll-snap-align: start; }

/* Lightbox */
#lightbox {
  opacity: 0; visibility: hidden; transition: opacity 0.3s ease, visibility 0.3s ease;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
#lightbox.active { opacity: 1; visibility: visible; }

/* Reveal Animations — visible by default; JS adds html.js-anim to enable scroll-in */
.reveal { opacity: 1; transform: translateY(0); transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
html.js-anim .reveal:not(.active) { opacity: 0; transform: translateY(40px); }
html.js-anim .reveal.active { opacity: 1; transform: translateY(0); }
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }

/* FAQ */
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease-out; }

/* Animated trust marquee */
.marquee { display: flex; overflow: hidden; user-select: none; gap: 0; -webkit-mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent); }
.marquee__track { display: flex; flex-shrink: 0; align-items: center; gap: 3rem; padding-right: 3rem; animation: marquee 28s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-100%); } }

/* Nav active link */
.nav-link.is-active { color: var(--zk-green); }

/* Touch targets & safe areas */
.tap-target { min-width: 44px; min-height: 44px; }
.safe-bottom { padding-bottom: max(0.625rem, env(safe-area-inset-bottom, 0px)); }

/* Sticky mobile CTA bar — solid, no backdrop-filter */
.mobile-cta-bar {
  background: var(--zk-dark);
  border-top: 1px solid rgba(204, 255, 0, 0.25);
  transform: translateY(0);
  will-change: transform;
}
.mobile-cta-bar.menu-hidden { transform: translateY(120%); pointer-events: none; }
.mobile-cta-bar__ig {
  background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
}

/* Navbar — lighter glass on mobile for performance */
.nav-root { position: relative; }
@media (max-width: 1023px) {
  #navbar.glass-panel {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(5, 5, 5, 0.97);
  }
}

/* Mobile menu toggle icons */
#mobile-menu-btn .menu-icon-open,
#mobile-menu-btn .menu-icon-close { transition: opacity 0.2s ease; }
#mobile-menu-btn[aria-expanded="true"] .menu-icon-open { display: none; }
#mobile-menu-btn[aria-expanded="true"] .menu-icon-close { display: block !important; }

/* Mobile menu panel */
.mobile-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  max-height: calc(100dvh - 4.5rem);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  background: var(--zk-black);
  border-bottom: 1px solid rgba(204, 255, 0, 0.2);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
}
.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}
.mobile-menu__inner {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  padding: 1rem 1.25rem 1.5rem;
  gap: 0.25rem;
}
.mobile-menu__link {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 0.75rem 0.5rem;
  font-family: 'Poppins', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: color 0.15s ease;
  -webkit-tap-highlight-color: transparent;
}
.mobile-menu__link:active { color: var(--zk-green); }
.mobile-menu__actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
  padding-top: 0.5rem;
}
.mobile-menu__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 52px;
  padding: 0.875rem 1.25rem;
  border-radius: 0.25rem;
  font-family: 'Poppins', sans-serif;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.15s ease, opacity 0.15s ease;
}
.mobile-menu__btn:active { transform: scale(0.98); opacity: 0.9; }
.mobile-menu__btn--ig {
  background: var(--zk-black);
  border: 1px solid rgba(204, 255, 0, 0.4);
  color: var(--zk-green);
}
.mobile-menu__btn--wa {
  background: var(--zk-green);
  color: var(--zk-black);
}

/* Mobile menu backdrop */
.mobile-menu-backdrop {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: rgba(0, 0, 0, 0.6);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s;
}
.mobile-menu-backdrop.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Stat cards — semantic value text (not headings) */
.stat-card__value { margin: 0; line-height: 1.1; }

/* WhatsApp buttons — WCAG AA contrast (white on #075E54) */
.btn-wa-solid {
  background: var(--wa-green);
  color: #fff;
  transition: background 0.2s ease, transform 0.2s ease;
}
.btn-wa-solid:hover {
  background: var(--wa-green-hover);
  color: #fff;
}

/* Developer credit — underline visible without relying on color alone */
.dev-credit {
  position: relative;
  display: inline-block;
  text-decoration: underline;
  text-decoration-color: rgba(204, 255, 0, 0.55);
  text-underline-offset: 3px;
}
.dev-credit::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--zk-green);
  box-shadow: 0 0 8px var(--zk-green);
  transition: width 0.35s ease;
}
.dev-credit:hover::after {
  width: 100%;
}

/* Buttons */
.btn-neon { box-shadow: 0 0 20px rgba(204, 255, 0, 0.3); }
.btn-neon:hover { box-shadow: 0 0 40px rgba(204, 255, 0, 0.5); }

/* ── Vivid images: subtle at rest, full color on hover / touch ── */
.img-color {
  filter: saturate(0.55) brightness(0.82);
  transition: filter 0.5s ease, transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
}
.group:hover .img-color,
.img-color:hover,
.img-wrap:active .img-color {
  filter: saturate(1.15) brightness(1.05);
}
.img-vivid,
.transform-card .img-color,
#clients-scroll .img-color,
#results .img-color,
#instagram .img-color.img-color {
  filter: saturate(1) brightness(1);
}
@media (hover: none) {
  .img-vivid,
  .transform-card .img-color,
  #clients-scroll .img-color,
  #results .img-color {
    filter: saturate(1.05) brightness(1.02);
  }
}

/* Instagram tile */
.ig-tile { position: relative; overflow: hidden; border-radius: 0.5rem; }
.ig-tile::after {
  content: ''; position: absolute; inset: 0; border: 2px solid transparent;
  border-radius: 0.5rem; transition: border-color 0.3s ease; pointer-events: none;
}
.ig-tile:hover::after, .ig-tile:active::after { border-color: var(--zk-green); }
.ig-tile .ig-badge {
  position: absolute; top: 0.75rem; right: 0.75rem;
  background: rgba(0,0,0,0.7); backdrop-filter: blur(4px);
  padding: 0.35rem 0.6rem; border-radius: 9999px;
  font-size: 0.6rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--zk-green); opacity: 0; transform: translateY(-4px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.ig-tile:hover .ig-badge, .ig-tile:active .ig-badge { opacity: 1; transform: translateY(0); }

/* Mid-scroll CTA strips */
.cta-strip {
  background: linear-gradient(135deg, rgba(204,255,0,0.12) 0%, rgba(204,255,0,0.03) 50%, transparent 100%);
  border-top: 1px solid rgba(204,255,0,0.15);
  border-bottom: 1px solid rgba(204,255,0,0.15);
}
.cta-strip--dark {
  background: linear-gradient(135deg, rgba(204,255,0,0.08) 0%, rgba(18,18,18,0.9) 100%);
}

/* Section glow accents */
.glow-green { position: relative; }
.glow-green::before {
  content: ''; position: absolute; width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(204,255,0,0.06) 0%, transparent 70%);
  pointer-events: none; z-index: 0;
}

/* Instagram gradient CTA block */
.ig-cta-block {
  background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 40%, #111809 100%);
  border: 1px solid rgba(204,255,0,0.2);
  position: relative; overflow: hidden;
}
.ig-cta-block::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(204,255,0,0.1), transparent 60%),
              radial-gradient(ellipse at 80% 50%, rgba(204,255,0,0.05), transparent 50%);
  pointer-events: none;
}

/* Nav Instagram pill — solid bg prevents hero glare bleeding through */
.nav-ig {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-width: 2.25rem;
  min-height: 2.25rem;
  padding: 0.45rem 0.65rem;
  border-radius: 9999px;
  background: var(--zk-black);
  border: 1px solid rgba(204, 255, 0, 0.45);
  color: var(--zk-green);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.2s, color 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.nav-ig__text { display: none; }
.nav-ig:hover {
  background: var(--zk-green);
  color: var(--zk-black);
  border-color: var(--zk-green);
  box-shadow: 0 0 16px rgba(204, 255, 0, 0.35);
}

/* Floating IG button */
.float-ig {
  background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
  box-shadow: 0 4px 20px rgba(220, 39, 67, 0.4);
}
.float-ig:hover { transform: scale(1.1); box-shadow: 0 6px 28px rgba(220, 39, 67, 0.55); }

/* Stat cards pulse on hover */
.stat-card { transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s; }
.stat-card:hover { border-color: rgba(204,255,0,0.4); box-shadow: 0 0 30px rgba(204,255,0,0.12); transform: translateY(-4px); }

/* Quote highlight */
.quote-card {
  background: linear-gradient(135deg, rgba(204,255,0,0.08), rgba(18,18,18,0.95));
  border-left: 3px solid var(--zk-green);
}

/* Horizontal scroll — mobile drag + arrow buttons; desktop uses grid */
.h-scroll-wrap { position: relative; }
.h-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
  cursor: grab;
  user-select: none;
}
.h-scroll.is-dragging { cursor: grabbing; scroll-behavior: auto; }
@media (min-width: 768px) {
  .h-scroll { cursor: default; overflow: visible; }
}
.h-scroll-btn {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 20;
  width: 2.25rem; height: 2.25rem; border-radius: 9999px;
  background: rgba(204, 255, 0, 0.95); color: #050505;
  border: none; display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem; cursor: pointer;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  transition: transform 0.2s, background 0.2s;
}
.h-scroll-btn:hover { background: #fff; transform: translateY(-50%) scale(1.08); }
.h-scroll-btn--prev { left: 0.25rem; }
.h-scroll-btn--next { right: 0.25rem; }
.h-scroll-btn:disabled { opacity: 0.35; pointer-events: none; }

/* Hero — background visible on right; portrait crisp & full color */
.hero-bg__img {
  opacity: 0.55;
  object-position: 72% 15%;
  filter: brightness(1.05);
}
.hero-scrim-left {
  background: linear-gradient(to right,
    rgba(5, 5, 5, 0.95) 0%,
    rgba(5, 5, 5, 0.82) 38%,
    rgba(5, 5, 5, 0.35) 58%,
    transparent 72%);
}
.hero-scrim-bottom {
  background: linear-gradient(to top,
    rgba(5, 5, 5, 0.85) 0%,
    transparent 35%);
}
.hero-portrait__img {
  filter: none !important;
  opacity: 1 !important;
}
@media (max-width: 1023px) {
  .hero-bg__img { opacity: 0.35; object-position: center 20%; }
  .hero-scrim-left {
    background: linear-gradient(to bottom,
      rgba(5, 5, 5, 0.75) 0%,
      rgba(5, 5, 5, 0.5) 45%,
      rgba(5, 5, 5, 0.2) 70%,
      transparent 100%);
  }
}

/* Accessibility: visible focus */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--zk-green); outline-offset: 2px; border-radius: 2px;
}

/* Ken/Client quote pulse dot */
.live-dot { box-shadow: 0 0 0 0 rgba(204, 255, 0, 0.7); animation: pulse-dot 2s infinite; }
@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(204, 255, 0, 0.7); }
  70% { box-shadow: 0 0 0 10px rgba(204, 255, 0, 0); }
  100% { box-shadow: 0 0 0 0 rgba(204, 255, 0, 0); }
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--zk-black); }
::-webkit-scrollbar-thumb { background: var(--zk-gray); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--zk-green); }

/* Mobile: skip scroll-in animations for snappier first paint */
@media (max-width: 1023px) {
  html.js-anim .reveal:not(.active) { opacity: 1 !important; transform: none !important; }
  html.js-anim .reveal { transition: none !important; }
}

/* Respect users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.js-anim .reveal:not(.active) { opacity: 1 !important; transform: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .marquee__track { animation: none !important; }
  .live-dot, .animate-pulse { animation: none !important; }
  .hero-bg__img { animation: none !important; }
  .hero-enter { opacity: 1 !important; transform: none !important; }
  .pkg-featured { animation: none !important; }
  .hero-scroll-hint__icon { animation: none !important; }
  * { scroll-behavior: auto !important; }
}