/* ===== Reset & Base ===== */
*, *::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;
}

img {
    display: block;
}

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

select, input, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* ===== Scroll Reveal (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                    transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

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

    .reveal:nth-child(2) { transition-delay: 0.1s; }
    .reveal:nth-child(3) { transition-delay: 0.2s; }
}

/* ===== Floating Cards ===== */
@media (prefers-reduced-motion: no-preference) {
    .floating-card {
        animation: float 6s ease-in-out infinite;
    }

    .floating-card:nth-child(2) {
        animation-delay: -2s;
    }

    .floating-card:nth-child(3) {
        animation-delay: -4s;
    }

    @keyframes float {
        0%, 100% { transform: translateY(0px) rotate(0deg); }
        50% { transform: translateY(-10px) rotate(0.5deg); }
    }
}

/* ===== Scroll Line Animation ===== */
@media (prefers-reduced-motion: no-preference) {
    .scroll-line {
        animation: scrollPulse 2s ease-in-out infinite;
        transform-origin: top;
    }

    @keyframes scrollPulse {
        0%, 100% { opacity: 0.3; transform: scaleY(1); }
        50% { opacity: 1; transform: scaleY(1.2); }
    }
}

/* ===== Navbar Scroll State ===== */
#navbar.scrolled {
    background: rgba(250, 250, 248, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(123, 45, 59, 0.06);
}

#navbar.scrolled .font-serif {
    color: #7B2D3B;
}

/* ===== Menu Item Hover ===== */
.menu-item {
    border-bottom: 1px solid transparent;
    padding-bottom: 6px;
    transition: border-color 0.3s ease;
}

.menu-item:last-child {
    border-bottom: none;
}

.menu-item:hover {
    border-bottom-color: rgba(123, 45, 59, 0.15);
}

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

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

/* Mobile menu links */
#mobile-menu.open .mobile-link {
    animation: fadeUp 0.4s ease forwards;
    opacity: 0;
}

#mobile-menu.open .mobile-link:nth-child(1) { animation-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { animation-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { animation-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { animation-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(6) { animation-delay: 0.25s; }

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== Hamburger Animation ===== */
.menu-toggle.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(3px, 3px);
}

.menu-toggle.active .menu-line:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(3px, -3px);
    width: 1.25rem;
}

/* ===== Selection Color ===== */
::selection {
    background: rgba(123, 45, 59, 0.15);
    color: #3D1117;
}

/* ===== Focus Styles ===== */
:focus-visible {
    outline: 2px solid #7B2D3B;
    outline-offset: 2px;
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #FAFAF8;
}

::-webkit-scrollbar-thumb {
    background: #D9A3A8;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #A85568;
}