:root {
  --color-primary: #1B4332;
  --color-secondary: #2D6A4F;
  --color-accent: #40C057;
  --bg-light: #F0FDF4;
  --bg-alt: #DCFCE7;
}

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
body { font-family: 'Urbanist', system-ui, sans-serif; }

::selection { background: rgba(64, 192, 87, 0.25); }

img { max-width: 100%; height: auto; }

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%;
}

/* Header (transparent -> solid on scroll) */
.header--transparent {
  color: #fff;
}

.header__backdrop {
  background: linear-gradient(to bottom, rgba(17,24,39,0.55), rgba(17,24,39,0.15), rgba(17,24,39,0));
}

.header--solid {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: #111827;
  border-bottom: 1px solid rgba(229,231,235,0.9);
}

.header--solid .header__backdrop { display: none; }
.header--solid .header__brand,
.header--solid .header__link { color: rgba(17,24,39,0.92) !important; }
.header--solid .header__link:hover { color: rgba(17,24,39,1) !important; }
.header--solid #mobile-menu-btn { color: rgba(17,24,39,0.92) !important; }

.mobile-nav-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 0.9rem;
  border-radius: 9999px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.92);
  font-size: 0.9rem;
  font-weight: 600;
}

.mobile-nav-item:hover { background: rgba(255,255,255,0.12); }

.mobile-nav-cta {
  grid-column: span 2 / span 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 0.95rem;
  border-radius: 9999px;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  box-shadow: 0 10px 25px rgba(16,185,129,0.18);
}

.mobile-nav-cta:hover { filter: brightness(0.98); }

/* Animations */
[data-animate] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

.rotate-180 { transform: rotate(180deg); }

/* Decorative patterns */
.decor-grid-dots {
  background-image: radial-gradient(rgba(255,255,255,0.22) 1px, transparent 1px);
  background-size: 18px 18px;
}

.decor-grid-lines {
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.10) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.10) 1px, transparent 1px);
  background-size: 28px 28px;
}

.decor-diagonal {
  background-image: repeating-linear-gradient(
    135deg,
    rgba(255,255,255,0.10),
    rgba(255,255,255,0.10) 10px,
    transparent 10px,
    transparent 20px
  );
}

.decor-mesh {
  background:
    radial-gradient(900px circle at 10% 10%, rgba(64,192,87,0.18), transparent 55%),
    radial-gradient(800px circle at 90% 20%, rgba(45,106,79,0.22), transparent 55%),
    radial-gradient(900px circle at 60% 90%, rgba(27,67,50,0.18), transparent 55%);
}

.decor-gradient-blur::before,
.decor-gradient-blur::after {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  filter: blur(50px);
  opacity: 0.75;
  pointer-events: none;
  transform: translateZ(0);
}

.decor-gradient-blur::before {
  left: -220px;
  top: -260px;
  background: radial-gradient(circle at 30% 30%, rgba(64,192,87,0.45), transparent 60%);
}

.decor-gradient-blur::after {
  right: -240px;
  bottom: -300px;
  background: radial-gradient(circle at 70% 70%, rgba(45,106,79,0.42), transparent 62%);
}

.decor-subtle { opacity: 0.06; }
.decor-moderate { opacity: 0.10; }
.decor-bold { opacity: 0.18; }

/* Form helpers */
.input-error {
  outline: 2px solid rgba(239,68,68,0.45);
  outline-offset: 2px;
}

.form-message {
  padding: 0.85rem 1rem;
  border-radius: 1rem;
  border: 1px solid rgba(229,231,235,1);
  background: rgba(249,250,251,1);
  color: rgba(55,65,81,1);
  font-size: 0.95rem;
}

.form-message--error {
  border-color: rgba(254,202,202,1);
  background: rgba(254,242,242,1);
  color: rgba(153,27,27,1);
}

.form-message--success {
  border-color: rgba(167,243,208,1);
  background: rgba(236,253,245,1);
  color: rgba(6,95,70,1);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-animate] { transition: none; }
}