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

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

body {
    margin: 0;
    overflow-x: hidden;
}

::selection {
    background: rgba(251, 191, 36, 0.3);
    color: #f0f4f8;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0a1628;
}
::-webkit-scrollbar-thumb {
    background: #334e68;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #486581;
}

/* Scroll Line Animation */
@keyframes scrollLine {
    0% { transform: scaleY(0); transform-origin: top; opacity: 0; }
    50% { opacity: 1; }
    100% { transform: scaleY(1); transform-origin: top; opacity: 0; }
}

.animate-scroll-line {
    animation: scrollLine 1.8s ease-in-out infinite;
}

/* Stat Card Float */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.stat-card:nth-child(1) { animation: float 4s ease-in-out infinite; }
.stat-card:nth-child(2) { animation: float 4s ease-in-out infinite 0.5s; }
.stat-card:nth-child(3) { animation: float 4s ease-in-out infinite 1s; }

/* Flavor Card Image Hover */
.flavor-card img {
    transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

/* Process Card Hover */
.process-card {
    padding: 1.5rem;
    border-radius: 1.5rem;
    transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.process-card:hover {
    background: rgba(16, 42, 67, 0.5);
}

/* Mobile Menu Transitions */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

#mobile-menu.close {
    opacity: 0;
    pointer-events: none;
}

.mobile-link {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

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

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.3s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.35s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.4s; }

/* Navbar Scroll State */
#navbar.scrolled {
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(51, 78, 104, 0.3);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* Menu Lines Animation */
.menu-line {
    transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

#menu-toggle.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}
#menu-toggle.active .menu-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
#menu-toggle.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
    width: 1.25rem;
    margin-left: 0;
}