/* ─────────────────────────────────────────────────────────────
   AiS1.52 — Components
   Buttons, cards, forms, FAB, modal.
   ───────────────────────────────────────────────────────────── */

/* ════════════════ BUTTONS ════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  font-family: var(--ff-sans);
  font-size: var(--fs-sm);
  font-variation-settings: "wght" var(--wght-medium), "wdth" var(--wdth-normal);
  letter-spacing: var(--lt-base);
  padding: var(--sp-3) var(--sp-5);
  border: 1px solid transparent;
  cursor: pointer;
  position: relative;
  transition: background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out),
              font-variation-settings var(--dur-base) var(--ease-out);
  text-align: center;
  white-space: nowrap;
}
.btn:hover {
  font-variation-settings: "wght" var(--wght-semibold), "wdth" var(--wdth-narrow);
}

.btn-sm { padding: var(--sp-2) var(--sp-4); font-size: var(--fs-xs); }
.btn-lg { padding: var(--sp-4) var(--sp-6); font-size: var(--fs-base); }

.btn-primary {
  background: var(--ac);
  color: var(--tx-on-ac);
  border-color: var(--ac);
}
.btn-primary:hover {
  background: var(--ac-hover);
  border-color: var(--ac-hover);
  transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  color: var(--tx);
  border-color: var(--bd-strong);
  background: transparent;
}
.btn-ghost:hover {
  border-color: var(--ac);
  color: var(--ac);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

[data-magnetic] {
  will-change: transform;
}

/* PX-007: stabilize variable-font hover/scroll axis changes — contain layout
   so that font-variation-settings transitions don't trigger page-level reflow. */
[data-vfont-hover] {
  contain: layout style;
  transition: font-variation-settings 220ms var(--ease-out);
}

/* ════════════════ PROJECT CARD — UNIFIED (PX-004) ════════════════ */
/* All cards share one width, one aspect-ratio, one composition.
   Variation lives ONLY in content (mark, title, tags), not size. */
.card {
  flex: 0 0 clamp(360px, 38vw, 520px);
  display: flex;
  flex-direction: column;
  position: relative;
}

/* Featured pill — kept as content marker, but no size/layout impact */
.card.is-featured::before {
  content: 'Featured';
  position: absolute;
  top: -1px;
  left: var(--sp-3);
  background: var(--ac);
  color: var(--tx-on-ac);
  font-family: var(--ff-mono);
  font-size: var(--fs-2xs);
  text-transform: uppercase;
  letter-spacing: var(--lt-wide);
  padding: 3px var(--sp-2);
  z-index: 2;
  font-variation-settings: "wght" 600;
}

@media (max-width: 1024px) {
  .card { flex: 0 0 clamp(300px, 80vw, 480px); }
}

/* PX-013: scroll-snap alignment for mobile native-snap carousel.
   Scoped to no-preference to coexist with motion.css reduced-motion vertical stack. */
@media (max-width: 768px) and (prefers-reduced-motion: no-preference) {
  .card { scroll-snap-align: start; }
}

.card-num {
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  color: var(--tx-fa);
  letter-spacing: var(--lt-wide);
  margin-bottom: var(--sp-3);
  text-transform: uppercase;
}

.card-link {
  display: flex;
  flex-direction: column;
  background: var(--bg-elev-1);
  border: 1px solid var(--bd);
  align-self: start;
  transition: border-color var(--dur-base) var(--ease-out),
              background var(--dur-base) var(--ease-out);
}
.card-link:hover {
  border-color: var(--bd-accent);
  background: var(--bg-elev-2);
}
.card-link:hover .card-img { transform: scale(1.04); }
.card-link:hover .card-cta { color: var(--ac); }
.card-link:hover .card-title { color: var(--ac); }

/* PX-004: unified media — 16:10, dark frame, gradient overlays mask
   any cookie banner / light-bg dissonance from full-page screenshots */
.card-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-bottom: 1px solid var(--bd);
  background: var(--bg-elev-2);
  isolation: isolate;
}
.card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: brightness(0.94) contrast(1.02) saturate(0.95);
  transition: transform var(--dur-slow) var(--ease-out),
              filter var(--dur-base) var(--ease-out);
}
.card-link:hover .card-img {
  filter: brightness(1) contrast(1.05) saturate(1);
}
/* Top vignette — masks cookie banners that sit at the top of full-page snapshots */
.card-media::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 22%;
  background: linear-gradient(180deg, var(--bg) 0%, rgba(11,14,18,0.72) 45%, transparent 100%);
  z-index: 1;
  pointer-events: none;
}
/* Bottom vignette — soft fade to card body, masks footers / sticky CTAs */
.card-media::after {
  content: '';
  position: absolute;
  inset: auto 0 0 0;
  height: 28%;
  background: linear-gradient(0deg, var(--bg-elev-1) 0%, rgba(17,21,27,0.55) 50%, transparent 100%);
  z-index: 1;
  pointer-events: none;
}
/* Lift status badge above the vignette */
.card-status { z-index: 2; }
.card-status {
  position: absolute;
  top: var(--sp-3);
  left: var(--sp-3);
  font-family: var(--ff-mono);
  font-size: var(--fs-2xs);
  text-transform: uppercase;
  letter-spacing: var(--lt-wide);
  padding: var(--sp-1) var(--sp-2);
  background: rgba(10, 10, 11, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--bd-strong);
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
}
.card-status::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: var(--r-pill);
  background: var(--status-ok);
}
.card-status[data-status="in-development"]::before { background: var(--status-warn); }
.card-status[data-status="archived"]::before { background: var(--status-dev); }

.card-body {
  padding: var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}
.card-meta {
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  color: var(--tx-fa);
  text-transform: uppercase;
  letter-spacing: var(--lt-wide);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}
.card-sep { opacity: 0.5; }
.card-tag-primary { color: var(--ac); }

.card-title {
  font-size: var(--fs-2xl);
  font-variation-settings: "wght" var(--wght-semibold), "wdth" var(--wdth-normal);
  letter-spacing: var(--lt-tight);
  transition: color var(--dur-fast) var(--ease-out),
              font-variation-settings var(--dur-base) var(--ease-out);
}
.card-link:hover .card-title {
  font-variation-settings: "wght" var(--wght-bold), "wdth" var(--wdth-narrow);
}

.card-tagline {
  color: var(--tx-mu);
  font-size: var(--fs-base);
  line-height: var(--lh-snug);
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-1);
  margin-top: var(--sp-2);
}
.card-tags li {
  font-family: var(--ff-mono);
  font-size: var(--fs-2xs);
  color: var(--tx-mu);
  padding: 2px var(--sp-2);
  border: 1px solid var(--bd);
  text-transform: uppercase;
  letter-spacing: var(--lt-wide);
}

.card-cta {
  margin-top: auto;
  padding-top: var(--sp-4);
  font-family: var(--ff-mono);
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: var(--lt-wide);
  color: var(--tx);
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  transition: color var(--dur-fast) var(--ease-out);
}

/* ════════════════ SERVICE CARD ════════════════ */
.service {
  padding: var(--sp-8);
  border: 1px solid var(--bd);
  background: var(--bg-elev-1);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  transition: border-color var(--dur-base) var(--ease-out),
              background var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out);
}
.service:hover {
  border-color: var(--bd-accent);
  background: var(--bg-elev-2);
  transform: translateY(-2px);
}
.service-num {
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  color: var(--ac);
  letter-spacing: var(--lt-wide);
}
.service-title {
  font-size: var(--fs-xl);
  font-weight: var(--fw-semibold);
}
.service-text {
  color: var(--tx-mu);
  line-height: var(--lh-base);
  flex: 1;
}
.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-1);
  margin-top: var(--sp-2);
}
.service-tags li {
  font-family: var(--ff-mono);
  font-size: var(--fs-2xs);
  text-transform: uppercase;
  letter-spacing: var(--lt-wide);
  color: var(--tx-fa);
  padding: var(--sp-1) var(--sp-2);
  border: 1px solid var(--bd);
}

/* ════════════════ FORM ════════════════ */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
  background: var(--bg-elev-1);
  border: 1px solid var(--bd);
  padding: var(--sp-8);
}
.form-row {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}
.form-label {
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: var(--lt-wide);
  color: var(--tx-mu);
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
}
.form-required { color: var(--ac); }
.form-input {
  width: 100%;
  padding: var(--sp-3) var(--sp-4);
  background: var(--bg);
  border: 1px solid var(--bd);
  color: var(--tx);
  font-family: var(--ff-sans);
  font-size: var(--fs-base);
  transition: border-color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out);
}
.form-input:focus {
  border-color: var(--ac);
  background: var(--bg-elev-2);
  outline: none;
}
.form-input::placeholder { color: var(--tx-fa); }
.form-textarea {
  resize: vertical;
  min-height: 120px;
  font-family: var(--ff-sans);
  line-height: var(--lh-base);
}
.form-honey {
  position: absolute;
  left: -9999px;
  width: 1px; height: 1px;
  overflow: hidden;
}
.form-actions {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  margin-top: var(--sp-2);
}
.form-fineprint {
  font-size: var(--fs-xs);
  color: var(--tx-fa);
}
.form-fineprint a { color: var(--tx-mu); text-decoration: underline; }

.form-status {
  display: none;
  padding: var(--sp-3) var(--sp-4);
  font-family: var(--ff-mono);
  font-size: var(--fs-sm);
  border: 1px solid;
}
.form-status.is-success {
  display: block;
  color: var(--status-ok);
  border-color: var(--status-ok);
  background: rgba(74, 222, 128, 0.06);
}
.form-status.is-error {
  display: block;
  color: var(--status-err);
  border-color: var(--status-err);
  background: rgba(248, 113, 113, 0.06);
}

/* PX-008: graceful fallback shown when both form providers fail */
.form-fallback {
  margin-top: var(--sp-3);
  padding: var(--sp-4);
  border: 1px solid var(--bd-strong);
  background: var(--bg-elev-2);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}
.form-fallback-text {
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  color: var(--tx-mu);
  letter-spacing: var(--lt-wide);
}
.form-fallback-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

#contact-form .form-submit-loading { display: none; }
#contact-form.is-loading .form-submit-idle { display: none; }
#contact-form.is-loading .form-submit-loading { display: inline; }
#contact-form.is-loading .btn { opacity: 0.6; pointer-events: none; }

html[data-lang="de"] #contact-form .form-submit-loading[data-lang-en] { display: none; }
html[data-lang="de"] #contact-form.is-loading .form-submit-loading[data-lang-de] { display: inline; }

/* ════════════════ WHATSAPP FAB ════════════════ */
.fab {
  position: fixed;
  bottom: var(--sp-6);
  right: var(--sp-6);
  width: 56px;
  height: 56px;
  background: var(--ac);
  color: var(--tx-on-ac);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-fab);
  box-shadow: 0 8px 24px rgba(200, 255, 0, 0.25), 0 4px 12px rgba(0, 0, 0, 0.4);
  transition: transform var(--dur-base) var(--ease-spring),
              box-shadow var(--dur-base) var(--ease-out);
  cursor: pointer;
}
.fab:hover {
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 12px 32px rgba(200, 255, 0, 0.4), 0 4px 12px rgba(0, 0, 0, 0.4);
}
.fab::before {
  content: '';
  position: absolute;
  inset: -4px;
  border: 1px solid var(--ac);
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out),
              inset var(--dur-base) var(--ease-out);
}
.fab:hover::before {
  opacity: 0.5;
  inset: -8px;
}

@media (max-width: 640px) {
  .fab {
    bottom: var(--sp-4);
    right: var(--sp-4);
    width: 48px;
    height: 48px;
  }
}

/* ════════════════ WA MODAL ════════════════ */
.wa-modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--container-px);
  pointer-events: none;
}
.wa-modal[aria-hidden="false"] { pointer-events: auto; }
.wa-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
}
.wa-modal[aria-hidden="false"] .wa-modal-backdrop { opacity: 1; }
.wa-modal-card {
  position: relative;
  max-width: 480px;
  width: 100%;
  background: var(--bg-elev-1);
  border: 1px solid var(--bd-strong);
  padding: var(--sp-8);
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
  transform: translateY(16px) scale(0.97);
  opacity: 0;
  transition: transform var(--dur-base) var(--ease-spring),
              opacity var(--dur-base) var(--ease-out);
}
.wa-modal[aria-hidden="false"] .wa-modal-card {
  transform: translateY(0) scale(1);
  opacity: 1;
}
.wa-modal-title {
  font-size: var(--fs-xl);
  font-weight: var(--fw-semibold);
}
.wa-modal-text {
  color: var(--tx-mu);
  font-size: var(--fs-sm);
  line-height: var(--lh-base);
}
.wa-modal-text a { color: var(--ac); text-decoration: underline; }
.wa-modal-actions {
  display: flex;
  gap: var(--sp-3);
  justify-content: flex-end;
  flex-wrap: wrap;
}