/* ========================================
   Collinwood Nutrition — Custom Styles
   ======================================== */

/* --- Base & Typography --- */
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: #fdfcfa;
}

::selection {
    background-color: #c7dbb5;
    color: #28421e;
}

/* --- Custom Button --- */
.btn-primary {
    background: linear-gradient(135deg, #3d672c 0%, #538439 100%);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #315224 0%, #3d672c 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary:hover {
    transform: translateY(-2px);
}

.btn-primary span,
.btn-primary svg,
.btn-primary .btn-text {
    position: relative;
    z-index: 1;
}

/* --- Navbar --- */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #a1c284;
    transition: width 0.3s ease;
    border-radius: 1px;
}

.nav-link:hover::after {
    width: 100%;
}

/* --- Navbar scroll state --- */
nav.scrolled {
    background: rgba(253, 252, 250, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(61, 103, 44, 0.08);
}

nav.scrolled .nav-link {
    color: #3d672c;
}

nav.scrolled .font-serif {
    color: #28421e;
}

/* --- Mobile menu --- */
.mobile-link {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s ease;
}

#mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.25s; }

/* --- Scroll animations --- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* --- Image hover effects --- */
.group:hover .group-hover\:scale-105 {
    transform: scale(1.05);
}

/* --- Focus styles --- */
input:focus,
textarea:focus {
    box-shadow: 0 0 0 3px rgba(161, 194, 132, 0.15);
}

/* --- Subtle gradient divider --- */
.gradient-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(61, 103, 44, 0.2), transparent);
}

/* --- Smooth image loading --- */
img {
    opacity: 1;
    transition: opacity 0.3s ease;
}

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    
    .btn-primary:hover {
        transform: none;
    }
    
    .group:hover .group-hover\:scale-105 {
        transform: none;
    }
}