:root {
  --color-primary: #1A1A1A;
  --color-secondary: #404040;
  --color-accent: #111111;
  --font-main: 'Work Sans', system-ui, sans-serif;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  font-family: var(--font-main);
}

/* ─── Button base ─── */
button,
.btn,
[class*="btn-"],
a[href="#order_form"] {
  white-space: nowrap;
  min-width: fit-content;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

form button[type="submit"] {
  white-space: normal;
  width: 100%;
  display: flex;
}

/* ─── Scroll Animations ─── */
html.js-anim html.js-anim [data-animate] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

html.js-anim html.js-anim [data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

html.js-anim [data-animate][data-delay="100"] { transition-delay: 0.1s; }
html.js-anim [data-animate][data-delay="150"] { transition-delay: 0.15s; }
html.js-anim [data-animate][data-delay="200"] { transition-delay: 0.2s; }
html.js-anim [data-animate][data-delay="300"] { transition-delay: 0.3s; }
html.js-anim [data-animate][data-delay="400"] { transition-delay: 0.4s; }
html.js-anim [data-animate][data-delay="500"] { transition-delay: 0.5s; }

/* ─── Rotate utility ─── */
.rotate-180 { transform: rotate(180deg); }

/* ─── FAQ Accordion ─── */
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, opacity 0.3s ease-out;
  opacity: 0;
}

.faq-answer.is-open {
  max-height: 600px;
  opacity: 1;
}

/* ─── Decorative: Dot Grid ─── */
.decor-grid-dots {
  background-image: radial-gradient(circle, #d1d5db 1px, transparent 1px);
  background-size: 24px 24px;
}

/* ─── Decorative: Line Grid ─── */
.decor-grid-lines {
  background-image:
    linear-gradient(to right, rgba(0,0,0,0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0,0,0,0.05) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* ─── Decorative: Diagonal stripes ─── */
.decor-diagonal {
  background-image: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 10px,
    rgba(0,0,0,0.03) 10px,
    rgba(0,0,0,0.03) 20px
  );
}

/* ─── Decorative: Mesh overlay ─── */
.decor-mesh::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

/* ─── Decorative: Gradient blur blobs ─── */
.decor-gradient-blur::before,
.decor-gradient-blur::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}
.decor-gradient-blur::before {
  width: 400px;
  height: 400px;
  background: rgba(26,26,26,0.07);
  top: -100px;
  right: -100px;
}
.decor-gradient-blur::after {
  width: 300px;
  height: 300px;
  background: rgba(64,64,64,0.05);
  bottom: -80px;
  left: -80px;
}

/* ─── Decorative: Corner accents ─── */
.decor-corner-tr::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle at top right, rgba(26,26,26,0.08), transparent 70%);
  pointer-events: none;
}

.decor-corner-bl::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle at bottom left, rgba(26,26,26,0.06), transparent 70%);
  pointer-events: none;
}

/* ─── Decorative: Glow element ─── */
.decor-glow-element {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26,26,26,0.12) 0%, transparent 70%);
  pointer-events: none;
  filter: blur(40px);
}

/* ─── Intensity modifiers ─── */
.decor-subtle { opacity: 0.05; }
.decor-moderate { opacity: 0.10; }
.decor-bold { opacity: 0.20; }

/* ─── Testimonial slider ─── */
.testimonial-track {
  display: flex;
  transition: transform 0.5s ease-out;
}

.testimonial-slide {
  flex: 0 0 100%;
}

/* ─── Star rating ─── */
.stars {
  display: inline-flex;
  gap: 2px;
  color: #f59e0b;
}

/* ─── Form fields ─── */
.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid #e5e7eb;
  border-radius: 0.75rem;
  font-family: var(--font-main);
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.2s;
  background: #fff;
}

.form-input:focus {
  border-color: #1A1A1A;
  box-shadow: 0 0 0 3px rgba(26,26,26,0.08);
}

.form-input.error {
  border-color: #ef4444;
}

.field-error {
  font-size: 0.75rem;
  color: #ef4444;
  margin-top: 0.25rem;
  display: none;
}

.field-error.visible {
  display: block;
}

/* ─── Alert messages ─── */
.alert {
  padding: 0.875rem 1rem;
  border-radius: 0.75rem;
  font-size: 0.875rem;
  margin-bottom: 1rem;
  display: none;
}
.alert.visible { display: block; }
.alert-error { background: #fef2f2; color: #dc2626; border: 1px solid #fecaca; }
.alert-success { background: #f0fdf4; color: #16a34a; border: 1px solid #bbf7d0; }

/* ─── Mobile menu transition ─── */
#mobile-menu {
  transition: max-height 0.3s ease-out, opacity 0.3s ease-out;
}

/* ─── Smooth header on scroll ─── */
.header-scrolled {
  box-shadow: 0 1px 12px rgba(0,0,0,0.08);
}

/* ─── Badge ─── */
.product-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.75rem;
  background: #1A1A1A;
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 9999px;
  letter-spacing: 0.02em;
}

/* ─── Rings SVG ─── */
.decor-rings-svg {
  position: absolute;
  pointer-events: none;
  opacity: 0.06;
}

/* ─── Utility ─── */
.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}