/* ===== RESET & BASE ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #1e2028;
}
::-webkit-scrollbar-thumb {
    background: #ff8f6b;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #e84f20;
}

/* ===== NAVBAR SCROLL STATE ===== */
#navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
}

#navbar.scrolled .font-sans.font-semibold {
    color: #1e2028;
}

/* ===== SCROLL REVEAL (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }
    .reveal.revealed {
        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; }
}

/* ===== HERO IMAGE STACK HOVER ===== */
.hero-stack-item {
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.hero-stack-item:hover {
    transform: rotate(0deg) scale(1.02);
}

/* ===== CARD HOVER EFFECTS ===== */
.product-card {
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.4s ease;
}
.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}

/* ===== BUTTON RIPPLE ===== */
.btn-ripple {
    position: relative;
    overflow: hidden;
}
.btn-ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}
.btn-ripple:active::after {
    width: 200px;
    height: 200px;
}

/* ===== VALUE ICON HOVER ===== */
.value-icon {
    transition: transform 0.3s ease;
}
.value-icon:hover {
    transform: scale(1.1) rotate(5deg);
}

/* ===== FORM INPUTS ===== */
input:focus, textarea:focus {
    box-shadow: 0 0 0 3px rgba(255, 111, 63, 0.15);
}

/* ===== MOBILE MENU TRANSITION ===== */
#mobile-menu {
    animation: slideDown 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== CUSTOM SELECTION ===== */
::selection {
    background: #ff8f6b;
    color: #fff;
}

/* ===== RESPONSIVE TWEAKS ===== */
@media (max-width: 767px) {
    #hero {
        min-height: auto;
        padding-top: 80px;
    }
}