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

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

body {
    overflow-x: hidden;
}

::selection {
    background: #d95a2e;
    color: white;
}

/* ─── Navbar ─── */
#navbar {
    background: transparent;
    transition: background 0.5s ease, box-shadow 0.5s ease, backdrop-filter 0.5s ease;
}

#navbar.scrolled {
    background: rgba(250, 249, 247, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

#navbar.scrolled .font-serif,
#navbar.scrolled span {
    color: #443d37 !important;
}

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

.mobile-link {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s 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; }
#mobile-menu.open .mobile-link:nth-child(6) { transition-delay: 0.3s; }

/* ─── Hamburger ─── */
.menu-line {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

body.menu-open .menu-line:nth-child(1) {
    transform: translateY(4px) rotate(45deg);
}

body.menu-open .menu-line:nth-child(2) {
    opacity: 0;
}

body.menu-open .menu-line:nth-child(3) {
    transform: translateY(-4px) rotate(-45deg);
    width: 1.25rem;
}

/* ─── Hero Floating Cards ─── */
@keyframes float-1 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

@keyframes float-2 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

@keyframes float-3 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
}

@keyframes float-4 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.float-card-1 { animation: float-1 6s ease-in-out infinite; }
.float-card-2 { animation: float-2 5s ease-in-out infinite 0.5s; }
.float-card-3 { animation: float-3 7s ease-in-out infinite 1s; }
.float-card-4 { animation: float-4 5.5s ease-in-out infinite 0.3s; }

/* ─── Reveal Animations ─── */
.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: no-preference) {
    .reveal-up {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }
    
    .reveal-left {
        opacity: 0;
        transform: translateX(-30px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }
    
    .reveal-right {
        opacity: 0;
        transform: translateX(30px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }
    
    .reveal-up.visible,
    .reveal-left.visible,
    .reveal-right.visible {
        opacity: 1;
        transform: none;
    }
}

/* ─── Thin scrollbar ─── */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #f5f3ef;
}

::-webkit-scrollbar-thumb {
    background: #d9d3c8;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #be b5a5;
}

/* ─── Focus styles ─── */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid #d95a2e;
    outline-offset: 2px;
    border-radius: 4px;
}

/* ─── Responsive tweaks ─── */
@media (max-width: 768px) {
    .float-card-1,
    .float-card-2,
    .float-card-3,
    .float-card-4 {
        display: none;
    }
}