/* ============================================
   AC Repair Fort Worth - Animation Styles
   ============================================ */

/* --- Animation design tokens (custom properties) --- */
:root {
  --anim-duration: 0.65s;
  --anim-duration-fast: 0.45s;
  --anim-duration-slow: 0.95s;
  --anim-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --anim-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --anim-ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --anim-distance: 36px;
  --anim-distance-sm: 22px;
  --anim-stagger: 0.1s;
  --anim-word-stagger: 0.055s;
  --anim-blur: 10px;
  --anim-scale-from: 0.9;
  --anim-rotate-from: -4deg;

  /* Per-element overrides (set via data attributes or inline style) */
  --anim-type: fade-up;
  --word-anim-type: rise;
  --section-anim-x: 0;
  --section-anim-y: var(--anim-distance);
  --section-anim-scale: 1;
  --section-anim-blur: 0;
  --section-anim-opacity: 0;
  --word-anim-x: 0;
  --word-anim-y: 0.85em;
  --word-anim-scale: 1;
  --word-anim-blur: 0;
  --word-anim-opacity: 0;
}

/*
  Usage:
  - Sections: auto-tagged by JS, or set manually:
      <section data-animate="slide-left" style="--anim-duration: 0.8s;">
    Types: fade-up | fade-down | slide-left | slide-right | zoom-in | blur-in | reveal-up | tilt-in

  - Words: auto-wrapped on titles/descriptions, or set manually:
      <h2 class="section-title" data-word-animate="pop">
    Types: rise | fade | slide | blur | pop | drop | wave

  - Override timing on any element:
      style="--anim-word-stagger: 0.08s; --anim-stagger: 0.15s;"
*/

/* --- Section entrance animations --- */
.section-animate {
  --section-anim-opacity: 0;
}

.section-animate .container > *,
.section-animate > .container {
  opacity: var(--section-anim-opacity);
  transform: translate3d(var(--section-anim-x), var(--section-anim-y), 0)
    scale(var(--section-anim-scale));
  filter: blur(var(--section-anim-blur));
  transition:
    opacity var(--anim-duration) var(--anim-ease),
    transform var(--anim-duration) var(--anim-ease),
    filter var(--anim-duration) var(--anim-ease);
}

.section-animate.is-visible {
  --section-anim-opacity: 1;
  --section-anim-x: 0;
  --section-anim-y: 0;
  --section-anim-scale: 1;
  --section-anim-blur: 0;
}

.section-animate.is-visible .container > *:nth-child(1),
.section-animate.is-visible > .container:nth-child(1) { transition-delay: calc(var(--anim-stagger) * 0); }
.section-animate.is-visible .container > *:nth-child(2),
.section-animate.is-visible > .container:nth-child(2) { transition-delay: calc(var(--anim-stagger) * 1); }
.section-animate.is-visible .container > *:nth-child(3) { transition-delay: calc(var(--anim-stagger) * 2); }
.section-animate.is-visible .container > *:nth-child(4) { transition-delay: calc(var(--anim-stagger) * 3); }
.section-animate.is-visible .container > *:nth-child(5) { transition-delay: calc(var(--anim-stagger) * 4); }
.section-animate.is-visible .container > *:nth-child(6) { transition-delay: calc(var(--anim-stagger) * 5); }

/* Section animation types */
.section-animate[data-animate="fade-up"] {
  --section-anim-y: var(--anim-distance);
  --section-anim-x: 0;
}

.section-animate[data-animate="fade-down"] {
  --section-anim-y: calc(var(--anim-distance) * -1);
  --section-anim-x: 0;
}

.section-animate[data-animate="slide-left"] {
  --section-anim-x: var(--anim-distance);
  --section-anim-y: 0;
}

.section-animate[data-animate="slide-right"] {
  --section-anim-x: calc(var(--anim-distance) * -1);
  --section-anim-y: 0;
}

.section-animate[data-animate="zoom-in"] {
  --section-anim-scale: var(--anim-scale-from);
  --section-anim-y: 0;
  --section-anim-x: 0;
}

.section-animate[data-animate="blur-in"] {
  --section-anim-blur: var(--anim-blur);
  --section-anim-y: var(--anim-distance-sm);
}

.section-animate[data-animate="reveal-up"] {
  --section-anim-y: 48px;
  --section-anim-scale: 0.96;
}

.section-animate[data-animate="tilt-in"] {
  --section-anim-y: var(--anim-distance-sm);
  --section-anim-scale: var(--anim-scale-from);
}

.section-animate[data-animate="tilt-in"] .container > * {
  transform: translate3d(var(--section-anim-x), var(--section-anim-y), 0)
    scale(var(--section-anim-scale))
    rotate(var(--anim-rotate-from));
}

.section-animate.is-visible[data-animate="tilt-in"] .container > * {
  transform: translate3d(0, 0, 0) scale(1) rotate(0deg);
}

/* Keep decorative backgrounds static during section entrance */
.section-animate .image-banner__bg,
.section-animate .image-banner__overlay,
.section-animate .hero__media,
.section-animate .hero-banner-wrap {
  opacity: 1 !important;
  transform: none !important;
  filter: none !important;
  transition: none !important;
}

/* Section headers: word animation replaces block fade on titles */
.section-animate.is-visible .section-header.animate-on-scroll {
  opacity: 1;
  transform: none;
}

.section-animate .section-header .section-title,
.section-animate .section-header .section-desc {
  opacity: 1;
  transform: none;
}

/* --- Word-by-word text animations --- */
.animate-words {
  --word-anim-opacity: 0;
}

.animate-words .anim-word {
  display: inline-block;
  opacity: var(--word-anim-opacity);
  transform: translate3d(var(--word-anim-x), var(--word-anim-y), 0)
    scale(var(--word-anim-scale));
  filter: blur(var(--word-anim-blur));
  transition:
    opacity var(--anim-duration-fast) var(--anim-ease-out),
    transform var(--anim-duration-fast) var(--anim-ease-out),
    filter var(--anim-duration-fast) var(--anim-ease-out);
  transition-delay: calc(var(--word-i, 0) * var(--anim-word-stagger));
  will-change: opacity, transform, filter;
}

.animate-words.is-visible {
  --word-anim-opacity: 1;
  --word-anim-x: 0;
  --word-anim-y: 0;
  --word-anim-scale: 1;
  --word-anim-blur: 0;
}

.animate-words[data-word-animate="rise"] {
  --word-anim-y: 0.85em;
}

.animate-words[data-word-animate="fade"] {
  --word-anim-y: 0;
  --word-anim-x: 0;
}

.animate-words[data-word-animate="slide"] {
  --word-anim-x: 0.65em;
  --word-anim-y: 0;
}

.animate-words[data-word-animate="blur"] {
  --word-anim-blur: var(--anim-blur);
  --word-anim-y: 0.35em;
}

.animate-words[data-word-animate="pop"] {
  --word-anim-scale: 0.4;
  --word-anim-y: 0;
}

.animate-words[data-word-animate="drop"] {
  --word-anim-y: -0.75em;
}

.animate-words[data-word-animate="wave"] {
  --word-anim-y: 0.5em;
  --anim-word-stagger: 0.04s;
}

.animate-words[data-word-animate="wave"] .anim-word {
  transition-timing-function: var(--anim-ease-bounce);
}

/* Section labels — line reveal */
.animate-label {
  display: inline-block;
  opacity: 0;
  transform: translateY(12px);
  letter-spacing: 0.12em;
  transition:
    opacity var(--anim-duration-fast) var(--anim-ease),
    transform var(--anim-duration-fast) var(--anim-ease),
    letter-spacing var(--anim-duration-slow) var(--anim-ease);
}

.animate-label.is-visible {
  opacity: 1;
  transform: translateY(0);
  letter-spacing: 0.08em;
}

/* Keyframes */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.5);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 0 0 12px rgba(37, 99, 235, 0);
  }
}

@keyframes pulseGreen {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 0 0 12px rgba(37, 211, 102, 0);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes countPop {
  0% { transform: scale(0.8); opacity: 0; }
  60% { transform: scale(1.05); }
  100% { transform: scale(1); opacity: 1; }
}

/* Scroll-triggered animation classes */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.animate-on-scroll.delay-1 { transition-delay: 0.1s; }
.animate-on-scroll.delay-2 { transition-delay: 0.2s; }
.animate-on-scroll.delay-3 { transition-delay: 0.3s; }
.animate-on-scroll.delay-4 { transition-delay: 0.4s; }

.fade-in {
  animation: fadeIn 0.8s ease forwards;
}

.slide-up {
  animation: slideUp 0.8s ease forwards;
}

.slide-down {
  animation: slideDown 0.5s ease forwards;
}

/* Hover animations */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-6px);
}

/* Floating action buttons */
.fab-call {
  animation: pulse 2s infinite;
}

.fab-whatsapp {
  animation: pulseGreen 2s infinite;
}

.fab-back-top.is-visible {
  animation: fadeIn 0.4s ease forwards;
}

/* Counter animation */
.stat-number.counted {
  animation: countPop 0.6s ease forwards;
}

/* Page load */
.page-enter {
  animation: fadeIn 0.5s ease;
}

/* Mobile menu slide — visibility handled in style.css */
.mobile-nav-overlay {
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-nav {
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Accordion FAQ */
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-item.is-open .faq-answer {
  max-height: 500px;
}

.faq-item.is-open .faq-icon {
  transform: rotate(180deg);
}

.faq-icon {
  transition: transform 0.3s ease;
}

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

  .animate-on-scroll,
  .section-animate .container > *,
  .animate-words .anim-word,
  .animate-label {
    opacity: 1;
    transform: none;
    filter: none;
  }
}

/* Fallback: show content if animate-on-scroll never gets is-visible (no-JS safety) */
.animate-on-scroll:not(.is-visible) {
  animation: scrollRevealFallback 0.01s 1.5s forwards;
}

@keyframes scrollRevealFallback {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fallback: reveal sections and words if JS observer never fires */
.section-animate:not(.is-visible) .container > * {
  animation: scrollRevealFallback 0.01s 1.8s forwards;
}

.animate-words:not(.is-visible) .anim-word {
  animation: scrollRevealFallback 0.01s 2s forwards;
}

.animate-label:not(.is-visible) {
  animation: scrollRevealFallback 0.01s 1.6s forwards;
}