/* ==========================================================================
   SPRK — 03. COMPONENTS
   Buttons · badges · cards · forms · icons · marquee · FAB
   ========================================================================== */

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  --btn-bg: var(--amber-500);
  --btn-fg: var(--ink);
  --btn-bd: transparent;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-3);
  padding: 16px 28px;
  border: 2px solid var(--btn-bd);
  border-radius: var(--r-btn);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-family: var(--font-body);
  font-size: var(--fs-btn);
  font-weight: 600;
  letter-spacing: var(--ls-btn);
  text-transform: uppercase;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  overflow: hidden;
  transition:
    background var(--t) var(--ease-out),
    color var(--t) var(--ease-out),
    border-color var(--t) var(--ease-out),
    transform var(--t) var(--ease-out),
    box-shadow var(--t) var(--ease-out);
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn:hover  { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary          { background: var(--amber-500); color: var(--ink); }
.btn--primary:hover    { background: var(--amber-600); color: var(--ink); box-shadow: var(--shadow-amber); }

.btn--secondary        { background: transparent; color: var(--navy-800); --btn-bd: var(--navy-800); }
.btn--secondary:hover  { background: var(--navy-800); color: #fff; }

.btn--ghost            { background: transparent; color: #fff; --btn-bd: rgba(255,255,255,.5); }
.btn--ghost:hover      { background: #fff; color: var(--navy-800); --btn-bd: #fff; }

.btn--wa               { background: #25D366; color: #06301A; }
.btn--wa:hover         { background: #1EBE5A; color: #06301A; box-shadow: 0 12px 30px rgba(37,211,102,.3); }

.btn--sm  { padding: 11px 18px; font-size: var(--fs-xs); }
.btn--lg  { padding: 19px 34px; }
.btn--block { width: 100%; }

/* One-off attention pulse fired by JS when the CTA band scrolls in */
.btn.is-pulsing::after {
  content: "";
  position: absolute; inset: -2px;
  border-radius: inherit;
  animation: pulse-ring 1.1s var(--ease-out) 2;
}
@keyframes pulse-ring {
  from { box-shadow: 0 0 0 0 var(--amber-glow); }
  to   { box-shadow: 0 0 0 20px rgba(245,162,26,0); }
}

/* Text link with an amber underline that draws in */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-weight: 600;
  font-size: var(--fs-sm);
  letter-spacing: .02em;
  color: var(--navy-800);
}
.link-arrow svg { width: 16px; height: 16px; transition: transform var(--t) var(--ease-out); }
.link-arrow:hover svg { transform: translateX(5px); }

/* --------------------------------------------------------------------------
   Badges / tags / chips
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: 6px 12px;
  border-radius: var(--r-pill);
  background: var(--bg);
  border: 1px solid var(--line);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--steel);
}
.badge svg { width: 14px; height: 14px; color: var(--amber-600); }
.badge--stock { background: rgba(30,158,90,.1); border-color: rgba(30,158,90,.28); color: #147A44; }
.badge--stock svg { color: var(--green-500); }
.badge--dark {
  background: rgba(255,255,255,.06);
  border-color: var(--line-dark);
  color: var(--muted-dark);
}

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  overflow: hidden;
  transition:
    transform var(--t) var(--ease-out),
    box-shadow var(--t) var(--ease-out),
    border-color var(--t) var(--ease-out);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: #D7DCE2; }

.card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--bg-2);
}
.card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease-out), filter var(--t) var(--ease-out);
}
.card:hover .card__media img { transform: scale(1.06); }

/* Category index chip sitting on the photo */
.card__index {
  position: absolute;
  top: var(--s-4); left: var(--s-4);
  z-index: 2;
  display: inline-flex;
  align-items: center;
  height: 28px; padding-inline: 10px;
  border-radius: var(--r-sm);
  background: rgba(10,26,43,.72);
  backdrop-filter: blur(3px);
  color: #fff;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: .1em;
}
.card__media::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(10,26,43,.42), rgba(10,26,43,0) 55%);
  opacity: .9;
  transition: opacity var(--t) var(--ease-out);
}
.card:hover .card__media::after { opacity: .6; }

.card__body {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  padding: var(--s-7) 28px;
  flex: 1;
}
.card__title {
  font-family: var(--font-head);
  font-size: var(--fs-h4);
  font-weight: 600;
  color: var(--navy-800);
  line-height: 1.2;
  position: relative;
  display: inline-block;
  align-self: flex-start;
}
.card__title::after {
  content: "";
  position: absolute; left: 0; bottom: -4px;
  width: 0; height: 2px;
  background: var(--amber-500);
  transition: width var(--t) var(--ease-out);
}
.card:hover .card__title::after { width: 100%; }
.card__text { font-size: var(--fs-sm); color: var(--muted); line-height: 1.65; margin: 0; }
.card__foot { margin-top: auto; padding-top: var(--s-5); }

/* Whole card is clickable but keeps a real link for a11y/SEO */
.card__link::after { content: ""; position: absolute; inset: 0; z-index: 3; }

/* --------------------------------------------------------------------------
   Feature (icon + copy) — used on navy strips
   -------------------------------------------------------------------------- */
.feature { display: grid; gap: var(--s-4); }
.feature__icon {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  border: 1px solid var(--line-dark);
  border-radius: var(--r-sm);
  color: var(--amber-500);
  background: rgba(255,255,255,.03);
  transition: background var(--t) var(--ease-out), border-color var(--t) var(--ease-out);
}
.feature__icon svg { width: 24px; height: 24px; }
.feature:hover .feature__icon { background: rgba(245,162,26,.1); border-color: rgba(245,162,26,.4); }
.feature__value {
  font-family: var(--font-head);
  font-size: clamp(2.25rem, 1.6rem + 2.6vw, 3.25rem);
  font-weight: 700;
  line-height: 1;
  color: #fff;
  letter-spacing: -1px;
}
.feature__title { font-family: var(--font-head); font-size: var(--fs-h4); font-weight: 600; color: #fff; }
.feature__text  { font-size: var(--fs-sm); color: var(--muted-dark); line-height: 1.6; margin: 0; }

/* --------------------------------------------------------------------------
   Checklist
   -------------------------------------------------------------------------- */
.checklist { display: grid; gap: var(--s-3); }
.checklist li {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: var(--s-3);
  align-items: start;
  font-size: var(--fs-body);
}
.checklist svg { width: 22px; height: 22px; color: var(--amber-600); margin-top: 3px; }

/* --------------------------------------------------------------------------
   Forms
   -------------------------------------------------------------------------- */
.field { display: grid; gap: var(--s-2); }
.field > label {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--steel);
}
.field .req { color: var(--amber-600); }

.input, .select, .textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--surface);
  border: 1.5px solid var(--line);
  border-radius: var(--r-btn);
  color: var(--text);
  font-size: var(--fs-body);
  line-height: 1.45;
  transition: border-color var(--t) var(--ease-out), box-shadow var(--t) var(--ease-out);
  appearance: none;
}
.textarea { min-height: 138px; resize: vertical; }
.select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' fill='none' stroke='%236B7580' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 8l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 44px;
  cursor: pointer;
}
.input:hover, .select:hover, .textarea:hover { border-color: #CBD2D9; }
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--amber-500);
  box-shadow: 0 0 0 4px rgba(245,162,26,.16);
}
.input::placeholder, .textarea::placeholder { color: #9AA3AD; }

.field.is-invalid .input,
.field.is-invalid .select,
.field.is-invalid .textarea { border-color: #D4462F; box-shadow: 0 0 0 4px rgba(212,70,47,.12); }
.field__error {
  font-size: var(--fs-xs);
  color: #C03A25;
  display: none;
}
.field.is-invalid .field__error { display: block; }

/* File input styled as a dashed drop plate */
.filefield {
  position: relative;
  display: grid;
  place-items: center;
  gap: var(--s-2);
  padding: var(--s-6);
  border: 1.5px dashed var(--line);
  border-radius: var(--r-btn);
  background: var(--bg);
  text-align: center;
  color: var(--muted);
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: border-color var(--t) var(--ease-out), background var(--t) var(--ease-out);
}
.filefield:hover { border-color: var(--amber-500); background: var(--amber-100); }
.filefield input[type="file"] { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.filefield svg { width: 22px; height: 22px; color: var(--steel); }

/* Honeypot — hidden from humans, catches bots */
.hp { position: absolute !important; left: -9999px !important; opacity: 0; height: 0; }

.form-note { font-size: var(--fs-xs); color: var(--muted); line-height: 1.6; }

.form-status {
  display: none;
  padding: var(--s-5);
  border-radius: var(--r-btn);
  font-size: var(--fs-sm);
  line-height: 1.6;
}
.form-status.is-ok   { display: block; background: rgba(30,158,90,.1);  border: 1px solid rgba(30,158,90,.3);  color: #147A44; }
.form-status.is-fail { display: block; background: rgba(212,70,47,.08); border: 1px solid rgba(212,70,47,.28); color: #C03A25; }

/* --------------------------------------------------------------------------
   Marquee (brand strip)
   -------------------------------------------------------------------------- */
.marquee {
  position: relative;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track {
  display: flex;
  width: max-content;
  align-items: center;
  gap: clamp(2.5rem, 4vw, 4.5rem);
  animation: marquee var(--marquee-duration, 38s) linear infinite;
}
.marquee:hover .marquee__track,
.marquee:focus-within .marquee__track { animation-play-state: paused; }
@keyframes marquee { from { transform: translate3d(0,0,0); } to { transform: translate3d(-50%,0,0); } }

.brand-logo {
  flex: none;
  height: 42px;
  display: grid;
  place-items: center;
  padding-inline: var(--s-2);
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--steel);
  opacity: .45;
  filter: grayscale(1);
  transition: opacity var(--t) var(--ease-out), filter var(--t) var(--ease-out), color var(--t) var(--ease-out);
  white-space: nowrap;
}
.brand-logo:hover { opacity: 1; filter: none; color: var(--navy-800); }

/* --------------------------------------------------------------------------
   Floating action buttons + scroll progress
   -------------------------------------------------------------------------- */
.scroll-progress {
  position: fixed; inset-inline: 0; top: 0;
  height: 3px;
  z-index: calc(var(--z-header) + 5);
  background: var(--amber-500);
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
}

.fab-stack {
  position: fixed;
  right: clamp(1rem, 2vw, 1.75rem);
  bottom: clamp(1rem, 2vw, 1.75rem);
  z-index: var(--z-fab);
  display: grid;
  gap: var(--s-3);
  justify-items: end;
  transition: opacity var(--t) var(--ease-out);
}
/* Get out of the way while the mobile drawer is open */
body.is-locked .fab-stack { opacity: 0; pointer-events: none; }
.fab {
  width: 54px; height: 54px;
  display: grid; place-items: center;
  border-radius: var(--r-pill);
  color: #fff;
  box-shadow: var(--shadow-lg);
  transition: transform var(--t) var(--ease-out), background var(--t) var(--ease-out), opacity var(--t) var(--ease-out);
}
.fab svg { width: 26px; height: 26px; }
.fab:hover { transform: translateY(-3px) scale(1.04); color: #fff; }
.fab--wa { background: #25D366; }
.fab--wa::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: 0 0 0 0 rgba(37,211,102,.55);
  animation: fab-ping 2.6s var(--ease-out) infinite;
  pointer-events: none;
}
.fab--wa { position: relative; }
@keyframes fab-ping {
  0%   { box-shadow: 0 0 0 0 rgba(37,211,102,.5); }
  70%  { box-shadow: 0 0 0 16px rgba(37,211,102,0); }
  100% { box-shadow: 0 0 0 0 rgba(37,211,102,0); }
}
.fab--top {
  width: 46px; height: 46px;
  background: var(--navy-800);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
}
.fab--top svg { width: 20px; height: 20px; }
.fab--top.is-visible { opacity: 1; pointer-events: auto; transform: none; }
.fab--top:hover { background: var(--amber-500); color: var(--ink); }

/* --------------------------------------------------------------------------
   Preloader — short, industrial, never blocks content for long
   -------------------------------------------------------------------------- */
.loader {
  position: fixed; inset: 0;
  z-index: var(--z-loader);
  display: grid; place-items: center;
  background: var(--navy-900);
  transition: opacity .5s var(--ease-out), visibility .5s;
}
.loader.is-done { opacity: 0; visibility: hidden; }
.loader__inner { display: grid; gap: var(--s-5); justify-items: center; }
.loader__bar {
  width: 180px; height: 2px;
  background: rgba(255,255,255,.16);
  overflow: hidden;
  border-radius: 2px;
}
.loader__bar i {
  display: block; height: 100%; width: 40%;
  background: var(--amber-500);
  animation: loader-slide 1s var(--ease-in-out) infinite;
}
@keyframes loader-slide {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(350%); }
}