/* ==========================================================================
   De Keteltechnieker — animaties rond warmte, vlam en meten
   Geladen na ketel.css. Beweging gebruikt transform/opacity, onthullen
   gebeurt via ketel.js en alles valt weg bij prefers-reduced-motion.
   ========================================================================== */

:root {
  --kt-ease: cubic-bezier(.22, 1, .36, 1);
  --kt-flame: #ffb547;
  --kt-ok: #22a56a;
}

/* --------------------------------------------------------------------
   Onthullen bij scrollen (elementen met data-aos, klassen via ketel.js)
   -------------------------------------------------------------------- */
.reveal-ready [data-aos] {
  opacity: 0;
  transform: translate3d(0, 28px, 0);
  transition: opacity .8s var(--kt-ease), transform .8s var(--kt-ease);
  transition-delay: var(--reveal-delay, 0s);
}

.reveal-ready [data-aos="fade-left"] {
  transform: translate3d(40px, 0, 0);
}

.reveal-ready [data-aos="fade"] {
  transform: none;
}

.reveal-ready [data-aos].is-visible {
  opacity: 1;
  transform: none;
}

/* --------------------------------------------------------------------
   Logo: de vlam brandt rustig
   -------------------------------------------------------------------- */
.logo-mark i {
  display: inline-block;
  transform-origin: 50% 90%;
  animation: kt-flicker 2.6s ease-in-out infinite;
}

@keyframes kt-flicker {
  0%, 100% {
    transform: scale(1) skewX(0deg);
    filter: brightness(1);
  }
  25% {
    transform: scale(1.06, .96) skewX(-3deg);
    filter: brightness(1.15);
  }
  50% {
    transform: scale(.97, 1.05) skewX(2deg);
  }
  75% {
    transform: scale(1.03, .98) skewX(-1deg);
    filter: brightness(1.08);
  }
}

/* --------------------------------------------------------------------
   Leesvoortgang als thermometer onder de groene navigatie
   -------------------------------------------------------------------- */
.ketel-header .nav-wrap {
  position: relative;
}

.heat-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  pointer-events: none;
  background: linear-gradient(90deg, #3d8fd6, #f0a72e 55%, #e0521d);
  transform: scaleX(var(--scroll, 0));
  transform-origin: left;
}

/* --------------------------------------------------------------------
   Hero: het onderhoudspaneel voert een controle uit
   -------------------------------------------------------------------- */
/* Status LED pulses like a device that is switched on. */
.status-dot {
  position: relative;
  box-shadow: none;
}

.status-dot::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: var(--kt-ok);
  animation: kt-led 2s ease-out infinite;
}

@keyframes kt-led {
  from {
    opacity: .6;
    transform: scale(1);
  }
  to {
    opacity: 0;
    transform: scale(2.6);
  }
}

/* The flame on the display ignites, then keeps burning. */
.boiler-screen {
  position: relative;
  overflow: hidden;
}

.boiler-screen i {
  display: inline-block;
  transform-origin: 50% 90%;
}

/* The check sequence starts once the panel is on screen (on mobile it sits below the fold). */
.is-visible .boiler-screen i {
  animation: kt-ignite .9s var(--kt-ease) .6s both, kt-flicker 2.2s ease-in-out 1.5s infinite;
}

.is-visible .boiler-screen span {
  animation: kt-fade-in .4s ease 3.4s both;
}

/* A soft warm glow rises behind the flame. */
.boiler-screen::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -40px;
  width: 160px;
  height: 90px;
  margin-left: -80px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(255, 181, 71, .35), transparent);
  animation: kt-glow 3s ease-in-out 1.2s infinite;
  opacity: 0;
}

@keyframes kt-ignite {
  0% {
    opacity: 0;
    transform: scale(.2) translateY(6px);
  }
  60% {
    opacity: 1;
    transform: scale(1.25);
  }
  100% {
    transform: none;
  }
}

@keyframes kt-glow {
  0%, 100% {
    opacity: .5;
    transform: scale(.95);
  }
  50% {
    opacity: 1;
    transform: scale(1.08);
  }
}

@keyframes kt-fade-in {
  from {
    opacity: 0;
  }
}

/* The grey lines are a diagnostic readout that loads one after another. */
.boiler-lines span {
  position: relative;
  overflow: hidden;
}

.boiler-lines span::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, #9cc9b3, var(--kt-ok));
  transform: scaleX(0);
  transform-origin: left;
}

.is-visible .boiler-lines span::after {
  animation: kt-load .8s var(--kt-ease) both;
}

.is-visible .boiler-lines span:nth-child(1)::after {
  animation-delay: 1.1s;
}

.is-visible .boiler-lines span:nth-child(2)::after {
  animation-delay: 1.6s;
}

.is-visible .boiler-lines span:nth-child(3)::after {
  animation-delay: 2.1s;
}

@keyframes kt-load {
  to {
    transform: scaleX(1);
  }
}

/* Mini gauge replaces the meter icon: the needle sweeps, then settles in the green zone. */
.mini-gauge {
  flex: 0 0 auto;
  width: 46px;
  height: 30px;
  overflow: visible;
}

.mini-gauge-track {
  fill: none;
  stroke: rgba(217, 120, 18, .28);
  stroke-width: 4;
  stroke-linecap: round;
}

.mini-gauge-ok {
  fill: none;
  stroke: var(--kt-ok);
  stroke-width: 4;
  stroke-linecap: round;
}

.mini-gauge circle {
  fill: var(--accent-color);
}

.mini-gauge-needle path {
  stroke: var(--green);
  stroke-width: 2.5;
  stroke-linecap: round;
}

.mini-gauge-needle {
  transform-box: view-box;
  transform-origin: 24px 26px;
  transform: rotate(47deg);
}

.is-visible .mini-gauge-needle {
  animation: kt-needle 2.4s var(--kt-ease) 1s both, kt-needle-idle 4s ease-in-out 3.6s infinite;
}

@keyframes kt-needle {
  0% {
    transform: rotate(-80deg);
  }
  45% {
    transform: rotate(70deg);
  }
  70% {
    transform: rotate(38deg);
  }
  85% {
    transform: rotate(50deg);
  }
  100% {
    transform: rotate(47deg);
  }
}

@keyframes kt-needle-idle {
  0%, 100% {
    transform: rotate(47deg);
  }
  50% {
    transform: rotate(43deg);
  }
}

/* Checklist items are ticked off one by one once the readout is done. */
.is-visible .hero-checklist span {
  animation: kt-rise .6s var(--kt-ease) both;
}

.hero-checklist i {
  display: inline-block;
}

.is-visible .hero-checklist i {
  animation: kt-tick .5s var(--kt-ease) both;
}

.is-visible .hero-checklist span:nth-child(1),
.is-visible .hero-checklist span:nth-child(1) i {
  animation-delay: 2.6s;
}

.is-visible .hero-checklist span:nth-child(2),
.is-visible .hero-checklist span:nth-child(2) i {
  animation-delay: 2.9s;
}

.is-visible .hero-checklist span:nth-child(3),
.is-visible .hero-checklist span:nth-child(3) i {
  animation-delay: 3.2s;
}

@keyframes kt-rise {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
}

@keyframes kt-tick {
  0% {
    transform: scale(0);
  }
  70% {
    transform: scale(1.35);
  }
  100% {
    transform: none;
  }
}

/* A warm glow breathes behind the panel. */
.ketel-hero .boiler-card {
  position: relative;
}

.ketel-hero .boiler-card::before {
  content: "";
  position: absolute;
  inset: -30px;
  z-index: -1;
  border-radius: 40px;
  background: radial-gradient(closest-side, rgba(240, 167, 46, .35), transparent);
  animation: kt-glow 5s ease-in-out infinite;
  pointer-events: none;
}

/* --------------------------------------------------------------------
   Kaarten: zachte lift en een warme rand bij hover
   -------------------------------------------------------------------- */
.feature-card,
.signal-card {
  position: relative;
  overflow: hidden;
  transition: transform .4s var(--kt-ease), box-shadow .4s;
}

.feature-card::after,
.signal-card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, #f0a72e, var(--accent-color), #e0521d);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .5s var(--kt-ease);
}

.feature-card:hover,
.signal-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 22px 40px -24px rgba(20, 60, 53, .45);
}

.feature-card:hover::after,
.signal-card:hover::after {
  transform: scaleX(1);
}

.feature-card .icon-box i {
  display: inline-block;
  transition: transform .4s var(--kt-ease);
}

.feature-card:hover .icon-box i {
  transform: rotate(-12deg) scale(1.15);
}

/* --------------------------------------------------------------------
   Signalen: elk icoon toont zijn eigen "signaal"
   -------------------------------------------------------------------- */
.signal-card i {
  display: inline-block;
}

/* Played once when the card scrolls into view... */
[data-aos].is-visible .signal-card .bi-volume-up {
  animation: kt-buzz .7s ease-in-out .6s;
}

[data-aos].is-visible .signal-card .bi-droplet {
  animation: kt-drip 1.1s var(--kt-ease) .7s;
}

[data-aos].is-visible .signal-card .bi-speedometer2 {
  animation: kt-wobble .9s var(--kt-ease) .8s;
}

[data-aos].is-visible .signal-card .bi-calendar2-check {
  animation: kt-flip .8s var(--kt-ease) .9s;
}

[data-aos].is-visible .signal-card .bi-exclamation-triangle {
  animation: kt-blink 1s steps(2, end) 1s 2;
}

/* ...and looped while the visitor hovers the card. */
[data-aos] .signal-card:hover .bi-volume-up {
  animation: kt-buzz .7s ease-in-out infinite;
}

[data-aos] .signal-card:hover .bi-droplet {
  animation: kt-drip 1.1s var(--kt-ease) infinite;
}

[data-aos] .signal-card:hover .bi-speedometer2 {
  animation: kt-wobble .9s var(--kt-ease) infinite;
}

[data-aos] .signal-card:hover .bi-calendar2-check {
  animation: kt-flip 1.2s var(--kt-ease) infinite;
}

[data-aos] .signal-card:hover .bi-exclamation-triangle {
  animation: kt-blink 1s steps(2, end) infinite;
}

@keyframes kt-buzz {
  20%, 60% {
    transform: translateX(-3px) rotate(-6deg);
  }
  40%, 80% {
    transform: translateX(3px) rotate(6deg);
  }
}

@keyframes kt-drip {
  0% {
    transform: translateY(-14px) scale(.8, 1.15);
    opacity: 0;
  }
  50% {
    transform: translateY(0) scale(1.15, .85);
    opacity: 1;
  }
  75% {
    transform: translateY(-3px) scale(.95, 1.05);
  }
}

@keyframes kt-wobble {
  30% {
    transform: rotate(-18deg);
  }
  60% {
    transform: rotate(12deg);
  }
}

@keyframes kt-flip {
  50% {
    transform: perspective(200px) rotateX(180deg);
  }
  100% {
    transform: perspective(200px) rotateX(360deg);
  }
}

@keyframes kt-blink {
  50% {
    opacity: .25;
  }
}

/* --------------------------------------------------------------------
   Rendement: de foto komt in beeld, de meter in de quote beweegt
   -------------------------------------------------------------------- */
.ketel-image {
  overflow: hidden;
  border-radius: 8px;
}

.ketel-image img {
  transition: transform 1.4s var(--kt-ease);
}

.reveal-ready [data-aos]:not(.is-visible) .ketel-image img {
  transform: scale(1.08);
}

.quote-card i {
  display: inline-block;
  animation: kt-wobble 1s var(--kt-ease) 1.2s;
}

.quote-card:hover i {
  animation: kt-wobble .9s var(--kt-ease) infinite;
}

/* --------------------------------------------------------------------
   Regio: de pinnen vallen één na één op hun plaats
   -------------------------------------------------------------------- */
.region-badge {
  transition: background-color .3s, color .3s, transform .3s var(--kt-ease);
}

.region-badge i {
  display: inline-block;
  transition: transform .3s var(--kt-ease);
}

.region-badge:hover {
  transform: translateY(-2px);
}

.region-badge:hover i {
  transform: translateY(-3px);
}

.reveal-ready [data-aos].is-visible .region-badge {
  animation: kt-pin-drop .6s var(--kt-ease) calc(.25s + var(--i, 0) * .06s) both;
}

.reveal-ready [data-aos].is-visible .region-badge i {
  animation: kt-pin-bounce .7s var(--kt-ease) calc(.35s + var(--i, 0) * .06s) both;
}

@keyframes kt-pin-drop {
  from {
    opacity: 0;
    transform: translateY(-14px);
  }
}

@keyframes kt-pin-bounce {
  0% {
    transform: translateY(-10px);
  }
  50% {
    transform: translateY(0) scale(1.15, .85);
  }
  100% {
    transform: none;
  }
}

/* --------------------------------------------------------------------
   Herinnering: de kalender "rinkelt" af en toe, met een meldingsbolletje
   -------------------------------------------------------------------- */
.reminder-icon {
  position: relative;
}

.reminder-icon i {
  display: inline-block;
  transform-origin: 50% 10%;
  animation: kt-ring 5s ease-in-out 1.5s infinite;
}

.reminder-icon::after {
  content: "";
  position: absolute;
  top: -4px;
  right: -4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #e0521d;
  box-shadow: 0 0 0 2px #fff;
  animation: kt-notify 5s ease-in-out 1.5s infinite;
}

@keyframes kt-ring {
  0%, 16%, 100% {
    transform: none;
  }
  2%, 6%, 10% {
    transform: rotate(-14deg);
  }
  4%, 8%, 12% {
    transform: rotate(14deg);
  }
}

@keyframes kt-notify {
  0%, 100% {
    transform: scale(1);
  }
  4% {
    transform: scale(1.4);
  }
  8% {
    transform: scale(1);
  }
}

/* --------------------------------------------------------------------
   Paginatitels: warme lucht stijgt op
   -------------------------------------------------------------------- */
.ketel-page-title {
  position: relative;
  overflow: hidden;
}

.heat-wisps {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.heat-wisps i {
  position: absolute;
  bottom: -60px;
  width: 140px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(240, 167, 46, .16), transparent);
  filter: blur(6px);
  animation: kt-rise-heat 9s ease-in infinite;
}

.heat-wisps i:nth-child(1) {
  left: 8%;
}

.heat-wisps i:nth-child(2) {
  left: 34%;
  animation-delay: 2.2s;
  animation-duration: 11s;
}

.heat-wisps i:nth-child(3) {
  left: 62%;
  animation-delay: 4.5s;
}

.heat-wisps i:nth-child(4) {
  left: 84%;
  animation-delay: 6.5s;
  animation-duration: 10s;
}

@keyframes kt-rise-heat {
  0% {
    opacity: 0;
    transform: translate3d(0, 0, 0) scale(.8);
  }
  20% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate3d(30px, -360px, 0) scale(1.4);
  }
}

/* --------------------------------------------------------------------
   Knoppen: een warme lichtflits bij hover
   -------------------------------------------------------------------- */
.btn-primary {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.btn-primary::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(110deg, transparent 30%, rgba(255, 236, 190, .5) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform .7s var(--kt-ease);
}

.btn-primary:hover::after {
  transform: translateX(120%);
}

/* --------------------------------------------------------------------
   Minder beweging gewenst
   -------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: .01ms !important;
    transition-delay: 0s !important;
  }

  .boiler-lines span::after {
    transform: scaleX(1);
  }

  .heat-wisps {
    display: none;
  }
}