/* ===== Custom Properties ===== */
:root {
    --color-mint-300: #7eddd5;
    --color-mint-400: #4ECDC4;
    --color-mint-500: #3DBDB4;
    --color-mint-600: #2A9D8F;
    --color-midnight-900: #0D1B2A;
    --color-midnight-950: #060D18;
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Raleway', 'Helvetica Neue', sans-serif;
}

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

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

body {
    margin: 0;
    font-family: var(--font-body);
    background-color: var(--color-midnight-950);
    color: #ffffff;
    overflow-x: hidden;
}

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

/* ===== Typography ===== */
.font-playfair {
    font-family: var(--font-display);
}

.font-raleway {
    font-family: var(--font-body);
}

/* ===== Scroll Reveal (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        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.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; }
}

/* ===== Navbar ===== */
#navbar {
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}

#navbar.scrolled {
    background: rgba(6, 13, 24, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-mint-400);
    transition: width 0.3s ease;
}

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

.nav-link:hover {
    color: var(--color-mint-300);
}

/* ===== Menu Tabs ===== */
.menu-tab {
    color: rgba(255, 255, 255, 0.45);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.menu-tab:hover {
    color: rgba(255, 255, 255, 0.75);
}

.menu-tab.active {
    background: var(--color-mint-600);
    color: var(--color-midnight-950);
    font-weight: 600;
}

.menu-content {
    animation: fadeUp 0.4s ease;
}

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

/* ===== Mobile Menu ===== */
.mobile-nav-link {
    position: relative;
}

/* ===== Utility ===== */
@media (max-width: 767px) {
    .reveal {
        opacity: 1;
        transform: none;
    }
}

/* ===== Selection ===== */
::selection {
    background: rgba(78, 205, 196, 0.25);
    color: #ffffff;
}

/* ===== Focus ===== */
:focus-visible {
    outline: 2px solid var(--color-mint-400);
    outline-offset: 2px;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-midnight-950);
}

::-webkit-scrollbar-thumb {
    background: rgba(78, 205, 196, 0.2);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(78, 205, 196, 0.4);
}