/* ==========================================================================
   Koha Service — Reusable Components
   ========================================================================== */

/* ---------------------------------------------------------------------- */
/* Buttons                                                                 */
/* ---------------------------------------------------------------------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 1.05rem 2.1rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  isolation: isolate;
  overflow: hidden;
  transition: transform var(--dur-fast) var(--ease-out-quart), box-shadow var(--dur-fast) var(--ease-out-quart), color var(--dur-fast) var(--ease-out-quart);
}

.btn .btn-arrow {
  display: inline-flex;
  transition: transform var(--dur-fast) var(--ease-out-quart);
}
.btn:hover .btn-arrow { transform: translateX(5px); }

.btn-primary {
  background: var(--grad-gold);
  color: var(--c-black-950);
  box-shadow: var(--shadow-gold);
}
.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--c-white);
  opacity: 0;
  z-index: -1;
  transition: opacity var(--dur-fast) var(--ease-out-quart);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 50px rgba(212,175,55,0.32);
}

.btn-secondary {
  background: rgba(247,245,240,0.04);
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-soft);
  transform: translateY(-2px);
}

.btn-block { width: 100%; }
.btn-sm { padding: 0.75rem 1.5rem; font-size: 0.85rem; }

/* Magnetic wrapper target (JS adds transform) */
.magnetic { will-change: transform; }

/* ---------------------------------------------------------------------- */
/* Preloader                                                               */
/* ---------------------------------------------------------------------- */
.preloader {
  position: fixed;
  inset: 0;
  z-index: var(--z-preloader);
  background: var(--c-black-950);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  transition: opacity 0.7s var(--ease-out-quart), visibility 0.7s var(--ease-out-quart);
}
.preloader.is-done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.preloader-mark {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  letter-spacing: 0.08em;
  display: flex;
  gap: 0.05em;
}
.preloader-mark span {
  display: inline-block;
  opacity: 0;
  transform: translateY(12px);
  animation: preloaderLetter 0.6s var(--ease-out-expo) forwards;
}
.preloader-bar {
  width: min(240px, 60vw);
  height: 2px;
  background: rgba(247,245,240,0.12);
  position: relative;
  overflow: hidden;
  border-radius: 2px;
}
.preloader-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  width: var(--progress, 0%);
  background: var(--grad-gold);
  transition: width 0.25s var(--ease-out-quart);
}
.preloader-pct {
  font-size: var(--fs-small);
  letter-spacing: var(--ls-wide);
  color: var(--color-text-dim);
  font-variant-numeric: tabular-nums;
}

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

/* ---------------------------------------------------------------------- */
/* Header / Navigation                                                    */
/* ---------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-header);
  padding-block: var(--space-md);
  transition: padding var(--dur-base) var(--ease-out-quart), background var(--dur-base) var(--ease-out-quart), border-color var(--dur-base) var(--ease-out-quart), backdrop-filter var(--dur-base) var(--ease-out-quart);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  padding-block: 0.85rem;
  /* A bit more opaque, a lot less blur: backdrop-filter over a full-width
     bar that repaints on every scroll frame was a real (not just felt)
     performance cost. 10px blur reads almost identically to 18px here
     but is meaningfully cheaper to composite while scrolling. */
  background: rgba(5,5,5,0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom-color: var(--color-border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.brand-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}
.festpreis-badge {
  display: block;
  height: 57px;
  width: auto;
  transform: rotate(40deg);
  transform-origin: center;
  flex-shrink: 0;
}

.logo {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.2rem;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.logo-img {
  display: block;
  height: 30px;
  width: auto;
}
.footer-brand .logo-img { height: 46px; }
.footer-brand-label {
  display: block;
  margin-top: 0.35rem;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  background: var(--grad-gold);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.logo-text-sub {
  display: block;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: var(--ls-wide);
  color: var(--color-text);
  text-transform: uppercase;
  margin-top: 1px;
}
.logo-text-sub--standalone {
  margin-top: 0;
  padding-left: 0;
  border-left: none;
  line-height: 1.2;
  align-self: flex-start;
  color: #000;
  transition: color var(--dur-base) var(--ease-out-quart);
}
.site-header.is-scrolled .logo-text-sub--standalone {
  color: var(--color-accent);
}

.nav-desktop {
  display: none;
}
@media (min-width: 1000px) {
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: clamp(1.5rem, 2vw, 2.5rem);
    padding: 0.5rem 0.75rem;
  }
}
.nav-link {
  position: relative;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 0.4rem 0.1rem;
  transition: color var(--dur-fast) var(--ease-out-quart);
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dur-base) var(--ease-out-quart);
}
.nav-link:hover,
.nav-link.is-active { color: var(--color-text); }
.nav-link:hover::after,
.nav-link.is-active::after { transform: scaleX(1); transform-origin: left; }

.header-actions { display: flex; align-items: center; gap: var(--space-sm); }
.header-cta { display: none; }
@media (min-width: 1000px) { .header-cta { display: inline-flex; } }

/* Hamburger */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: rgba(247,245,240,0.03);
}
@media (min-width: 1000px) { .nav-toggle { display: none; } }
.nav-toggle span {
  width: 18px; height: 1.5px;
  background: var(--color-text);
  transition: transform var(--dur-fast) var(--ease-out-quart), opacity var(--dur-fast) var(--ease-out-quart);
}
.nav-toggle.is-active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }
.nav-toggle.is-active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile nav overlay */
.nav-mobile {
  position: fixed;
  inset: 0;
  z-index: var(--z-mobile-nav);
  background: rgba(5,5,5,0.98);
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-xl) var(--container-pad);
  clip-path: circle(0% at calc(100% - 40px) 40px);
  transition: clip-path 0.7s var(--ease-out-expo);
  pointer-events: none;
}
.nav-mobile.is-open {
  clip-path: circle(150% at calc(100% - 40px) 40px);
  pointer-events: auto;
}
.nav-mobile-list { display: flex; flex-direction: column; gap: 0.5rem; }
.nav-mobile-link {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 8vw, 2.6rem);
  font-weight: 600;
  padding: 0.5rem 0;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
  opacity: 0;
  transform: translateY(16px);
  transition: color var(--dur-fast) var(--ease-out-quart);
}
.nav-mobile.is-open .nav-mobile-link { animation: navItemIn 0.6s var(--ease-out-expo) forwards; }
.nav-mobile-link:hover,
.nav-mobile-link.is-active { color: var(--color-accent); }
@keyframes navItemIn { to { opacity: 1; transform: translateY(0); } }
.nav-mobile-foot {
  margin-top: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.nav-mobile-contact { color: var(--color-text-muted); font-size: 0.95rem; }
.nav-mobile-contact a { color: var(--color-accent-soft); }

/* ---------------------------------------------------------------------- */
/* Cards                                                                   */
/* ---------------------------------------------------------------------- */
.card {
  position: relative;
  background: linear-gradient(160deg, rgba(255,255,255,0.035), rgba(255,255,255,0.01));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: transform var(--dur-base) var(--ease-out-quart), border-color var(--dur-base) var(--ease-out-quart), background var(--dur-base) var(--ease-out-quart);
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--color-border-strong);
  background: linear-gradient(160deg, rgba(212,175,55,0.06), rgba(255,255,255,0.015));
}

.glass {
  background: rgba(247,245,240,0.05);
  border: 1px solid var(--color-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* Icon badge */
.icon-badge {
  width: 56px; height: 56px;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-gold-soft);
  border: 1px solid var(--color-border-strong);
  color: var(--color-accent);
  margin-bottom: var(--space-md);
  transition: transform var(--dur-base) var(--ease-out-quart), background var(--dur-base) var(--ease-out-quart);
}
.card:hover .icon-badge { transform: scale(1.08) rotate(-4deg); background: var(--grad-gold); color: var(--c-black-950); }
.icon-badge svg { width: 26px; height: 26px; }

/* Numbered tag (process/service index) */
.tag-number {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  color: var(--color-accent);
  letter-spacing: var(--ls-wide);
}

/* Pill badge */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-strong);
  font-size: var(--fs-small);
  color: var(--color-accent-soft);
  background: rgba(212,175,55,0.06);
}

/* ---------------------------------------------------------------------- */
/* Forms                                                                   */
/* ---------------------------------------------------------------------- */
.field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: var(--space-md);
}
.field label {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}
.field input,
.field textarea,
.field select {
  background: rgba(247,245,240,0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.9rem 1.1rem;
  color: var(--color-text);
  transition: border-color var(--dur-fast) var(--ease-out-quart), background var(--dur-fast) var(--ease-out-quart);
}
.field input::placeholder,
.field textarea::placeholder { color: var(--color-text-dim); }
.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: var(--color-accent);
  background: rgba(212,175,55,0.04);
  outline: none;
}
/* The dropdown *list* a native <select> pops open is rendered by the
   browser/OS, not by our translucent-dark field styling — on most
   platforms it defaults to a white popup. Without this, the option
   text inherits .field select's white color and becomes unreadable
   (near-invisible) on that white background. Force dark text on a
   white background for the popped-open list specifically; the closed
   select itself keeps the site's dark style above. */
.field select option {
  color: #1a1a1a;
  background: #ffffff;
}
.field textarea { resize: vertical; min-height: 130px; }
.field-row { display: grid; grid-template-columns: 1fr; gap: var(--space-md); }
@media (min-width: 640px) { .field-row.two { grid-template-columns: 1fr 1fr; } }

.checkbox-field {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  font-size: var(--fs-small);
  color: var(--color-text-muted);
}
.checkbox-field input { margin-top: 3px; accent-color: var(--color-accent); }

.form-status {
  margin-top: var(--space-sm);
  font-size: var(--fs-small);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  display: none;
}
.form-status.is-visible { display: block; }
.form-status.success { background: rgba(212,175,55,0.1); border: 1px solid var(--color-border-strong); color: var(--color-accent-soft); }
.form-status.error { background: rgba(200,60,60,0.1); border: 1px solid rgba(200,60,60,0.4); color: #e79a9a; }

/* ---------------------------------------------------------------------- */
/* Back to top                                                            */
/* ---------------------------------------------------------------------- */
.back-to-top {
  position: fixed;
  right: clamp(1rem, 3vw, 2.5rem);
  bottom: clamp(1rem, 3vw, 2.5rem);
  width: 48px; height: 48px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(5,5,5,0.7);
  border: 1px solid var(--color-border-strong);
  backdrop-filter: blur(10px);
  color: var(--color-accent);
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity var(--dur-base) var(--ease-out-quart), transform var(--dur-base) var(--ease-out-quart), background var(--dur-fast);
  z-index: 500;
}
.back-to-top.is-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-to-top:hover { background: var(--color-accent); color: var(--c-black-950); }

/* Scroll progress bar */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 100%;
  z-index: 850;
  background: var(--grad-gold);
  transform: scaleX(0);
  transform-origin: left;
  will-change: transform;
}