/* =====================================================
   Frooli 3D Druck — Global Stylesheet
   Design System: Premium Maker / Dark Neon Cyan
   ===================================================== */

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --cyan:          #00f2ff;
  --cyan-dim:      #00dbe7;
  --cyan-fixed:    #74f5ff;
  --bg:            #131313;
  --surface:       #131313;
  --surface-low:   #1c1b1b;
  --surface-mid:   #201f1f;
  --surface-high:  #2a2a2a;
  --surface-var:   #353534;
  --surface-top:   #3a3939;
  --lowest:        #0e0e0e;
  --on-bg:         #e5e2e1;
  --on-surface:    #e5e2e1;
  --on-muted:      #b9cacb;
  --on-primary:    #00363a;
  --on-cyan:       #006a71;
  --outline:       #849495;
  --outline-var:   #3a494b;
  --radius-sm:     2px;
  --radius-md:     4px;
  --radius-lg:     8px;
  --radius-xl:     12px;
  --sp-xs:  4px;
  --sp-sm:  8px;
  --sp-md:  16px;
  --sp-lg:  24px;
  --sp-xl:  40px;
  --max-w:  1200px;
  --font:   'Outfit', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--on-surface);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--cyan); color: #000; }

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font-family: var(--font); cursor: pointer; border: none; }

/* ---------- Typography helpers ---------- */
.display-lg   { font-size: clamp(32px, 5vw, 48px); line-height: 1.1; font-weight: 700; letter-spacing: -0.02em; }
.headline-md  { font-size: 24px; line-height: 1.3; font-weight: 600; }
.body-lg      { font-size: 18px; line-height: 1.6; font-weight: 400; }
.body-md      { font-size: 16px; line-height: 1.6; font-weight: 400; }
.label-sm     { font-size: 12px; line-height: 1; font-weight: 600; letter-spacing: 0.05em; }
.text-cyan    { color: var(--cyan); }
.text-muted   { color: var(--on-muted); }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 var(--sp-lg); }

/* ---------- Navigation ---------- */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(19,19,19,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--outline-var);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--sp-md) var(--sp-lg);
  gap: var(--sp-md);
}

.brand {
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  line-height: 1.15;
}
.brand-main {
  font-size: clamp(18px, 2.5vw, 26px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--cyan);
  white-space: nowrap;
}
.brand-sub {
  font-size: 11px;
  font-weight: 400;
  color: var(--on-muted);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-lg);
}

.nav-link {
  font-size: 16px;
  color: var(--on-muted);
  padding: var(--sp-xs) var(--sp-sm);
  border-radius: var(--radius-md);
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover  { color: var(--cyan); background: rgba(255,255,255,0.04); }
.nav-link.active { color: var(--cyan); border-bottom: 2px solid var(--cyan); }

.lang-switch { display: flex; align-items: center; gap: 4px; margin-left: var(--sp-md); padding-left: var(--sp-md); border-left: 1px solid var(--outline-var); }
.lang-active  { font-size: 12px; font-weight: 700; color: var(--cyan); }
.lang-sep     { color: var(--on-muted); opacity: 0.5; }
.lang-inactive{ font-size: 12px; font-weight: 600; color: var(--on-muted); letter-spacing: 0.05em; transition: color 0.2s; }
.lang-inactive:hover { color: var(--cyan); }

.menu-toggle {
  display: none;
  background: none;
  color: var(--cyan);
  padding: var(--sp-xs);
}

/* Mobile drawer */
.mobile-drawer {
  display: none;
  flex-direction: column;
  gap: var(--sp-xs);
  padding: var(--sp-md) var(--sp-lg);
  border-top: 1px solid var(--outline-var);
  background: rgba(19,19,19,0.97);
}
.mobile-drawer.open { display: flex; }
.mobile-link { font-size: 16px; color: var(--on-muted); padding: var(--sp-sm); border-radius: var(--radius-md); transition: color 0.2s; }
.mobile-link:hover, .mobile-link.active { color: var(--cyan); }
.mobile-lang { display: flex; gap: 4px; align-items: center; padding: var(--sp-sm); margin-top: var(--sp-xs); }

@media (max-width: 768px) {
  .nav-links  { display: none; }
  .menu-toggle { display: block; }
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--lowest);
  border-top: 1px solid var(--outline-var);
  padding: var(--sp-xl) 0;
  margin-top: auto;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-md);
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-lg);
}
.footer-brand { font-size: 24px; font-weight: 600; color: var(--on-surface); }
.footer-links { display: flex; flex-wrap: wrap; gap: var(--sp-md); }
.footer-links a { font-size: 12px; font-weight: 600; letter-spacing: 0.05em; color: var(--on-muted); opacity: 0.8; transition: color 0.2s, opacity 0.2s; }
.footer-links a:hover { color: var(--cyan); opacity: 1; }
.footer-copy { font-size: 12px; color: var(--on-muted); opacity: 0.7; }

@media (max-width: 768px) {
  .footer-inner { flex-direction: column; align-items: center; text-align: center; }
  .footer-links { justify-content: center; }
}

/* ---------- Glass card ---------- */
.glass {
  background: rgba(28,27,27,0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--surface-var);
  box-shadow: 0 4px 30px rgba(0,0,0,0.4);
}
.glass-top { border-top: 1px solid rgba(0,242,255,0.25); }
.glass:hover { border-color: rgba(0,242,255,0.35); }

/* ---------- Buttons ---------- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-sm);
  background: var(--cyan);
  color: var(--on-primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: var(--sp-md) var(--sp-lg);
  border-radius: var(--radius-md);
  transition: box-shadow 0.2s, transform 0.2s;
}
.btn-primary:hover { box-shadow: 0 0 20px rgba(0,242,255,0.35); transform: translateY(-1px); }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-sm);
  background: transparent;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: var(--sp-sm) var(--sp-lg);
  border-radius: var(--radius-md);
  transition: background 0.2s, box-shadow 0.2s;
}
.btn-outline:hover { background: rgba(0,242,255,0.08); box-shadow: 0 0 12px rgba(0,242,255,0.2); }

/* ---------- Form inputs ---------- */
.input-field {
  width: 100%;
  background: var(--surface-low);
  border: 1px solid var(--surface-var);
  color: var(--on-surface);
  font-family: var(--font);
  font-size: 16px;
  padding: var(--sp-sm) var(--sp-sm) var(--sp-sm) 36px;
  border-radius: var(--radius-sm);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.input-field::placeholder { color: var(--on-muted); opacity: 0.5; }
.input-field:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(0,242,255,0.1); }

.input-wrap { position: relative; }
.input-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--on-muted);
  font-size: 18px;
  pointer-events: none;
  font-variation-settings: 'FILL' 0;
}
.input-icon-top {
  position: absolute;
  left: 10px;
  top: 12px;
  color: var(--on-muted);
  font-size: 18px;
  pointer-events: none;
  font-variation-settings: 'FILL' 0;
}

textarea.input-field { padding-left: 36px; resize: vertical; min-height: 120px; }

.form-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--on-muted);
  margin-bottom: var(--sp-xs);
}
.form-label .required { color: var(--cyan); font-size: 10px; }
.form-label .optional  { color: var(--on-muted); font-size: 10px; opacity: 0.7; }
.form-group { display: flex; flex-direction: column; }

/* ---------- Alert / status ---------- */
.alert {
  padding: var(--sp-md);
  border-radius: var(--radius-md);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
}
.alert-success { background: rgba(0,242,255,0.08); border: 1px solid rgba(0,242,255,0.3); color: var(--cyan); }
.alert-error   { background: rgba(255,80,80,0.08); border: 1px solid rgba(255,80,80,0.3); color: #ff6b6b; }

/* ---------- Section spacing ---------- */
.section { padding: var(--sp-xl) 0; }
.section + .section { border-top: 1px solid var(--outline-var); }

/* ---------- Progress bars ---------- */
.bar-track { width: 100%; background: var(--surface-high); border-radius: 999px; height: 6px; overflow: hidden; }
.bar-fill  { height: 100%; background: var(--cyan); border-radius: 999px; }
.bar-fill.glow { box-shadow: 0 0 8px rgba(0,242,255,0.5); animation: pulse-bar 2s infinite alternate; }
@keyframes pulse-bar { from { box-shadow: 0 0 4px rgba(0,242,255,0.3); } to { box-shadow: 0 0 14px rgba(0,242,255,0.7); } }

/* ---------- Glow decorations ---------- */
.glow-blob {
  position: absolute;
  border-radius: 50%;
  background: var(--cyan);
  opacity: 0.05;
  filter: blur(80px);
  pointer-events: none;
}

/* ---------- Upload drag zone ---------- */
.upload-zone {
  border: 2px dashed var(--outline-var);
  border-radius: var(--radius-xl);
  padding: var(--sp-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  cursor: pointer;
  min-height: 280px;
  transition: border-color 0.2s, background 0.2s;
  gap: var(--sp-md);
}
.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--cyan);
  background: rgba(0,242,255,0.04);
}
.upload-icon-wrap {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--outline-var);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, border-color 0.2s;
}
.upload-zone:hover .upload-icon-wrap { background: rgba(0,242,255,0.12); border-color: var(--cyan); color: var(--cyan); }
.upload-zone .material-symbols-outlined { font-size: 32px; font-variation-settings: 'FILL' 0; }
.upload-filename { font-size: 14px; color: var(--cyan); margin-top: 4px; word-break: break-all; }