/* ─── SHARED STYLES — MaestroOS / Giovanni Piacentini ────────────────── */
/* Loaded on all public pages. Page-specific styles stay inline.         */

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

/* ── DESIGN TOKENS ───────────────────────────────────────────────────── */
:root {
    --ink:       #0d0d0c;
    --paper:     #faf9f7;
    --mid:       #3a3a38;
    --muted:     #888880;
    --faint:     #b8b5b0;
    --line:      #e4e1dc;
    --accent:    #a8845c;   /* warm sienna — used sparingly */
    --accent-lt: #c9a97a;

    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans:  'DM Sans', -apple-system, sans-serif;

    --max-w:      1200px;
    --pad-h:      56px;
    --pad-h-sm:   24px;
}

/* ── BASE ─────────────────────────────────────────────────────────────── */
html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    background: var(--paper);
    color: var(--ink);
    line-height: 1.65;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

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

/* ── NAV ──────────────────────────────────────────────────────────────── */
nav {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 36px var(--pad-h);
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    position: relative;
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    display: block;
    width: 22px;
    height: 1px;
    background: var(--ink);
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.hamburger.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.nav-logo {
    font-family: var(--font-serif);
    font-weight: 400;
    font-size: 1.05rem;
    letter-spacing: 0.02em;
    color: var(--ink);
}

.nav-links {
    display: flex;
    align-items: baseline;
    gap: 36px;
}

.nav-links a {
    font-size: 0.82rem;
    font-weight: 400;
    letter-spacing: 0.04em;
    color: var(--muted);
    transition: color 0.2s ease;
}

.nav-links a:hover { color: var(--ink); }

.nav-links .nav-enter {
    color: var(--mid);
    font-weight: 500;
}

.nav-links .nav-enter:hover { color: var(--ink); }

/* ── DIVIDER ──────────────────────────────────────────────────────────── */
.rule {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 var(--pad-h);
}

.rule hr {
    border: none;
    height: 1px;
    background: var(--line);
}

/* ── FOOTER ───────────────────────────────────────────────────────────── */
footer {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 32px var(--pad-h);
    border-top: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--muted);
}

.footer-note {
    font-size: 0.75rem;
    color: var(--faint);
    letter-spacing: 0.03em;
}

/* ── ANIMATIONS ──────────────────────────────────────────────────────── */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s cubic-bezier(.25,.8,.5,1),
                transform 0.7s cubic-bezier(.25,.8,.5,1);
}

.fade-in.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger delays for children */
.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* Active nav link */
.nav-links a.active {
    color: var(--ink);
}

/* ── SOCIAL LINKS ────────────────────────────────────────────────────── */
.social-links {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-top: 40px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--muted);
    transition: color 0.3s cubic-bezier(.25,.8,.5,1), transform 0.3s cubic-bezier(.25,.8,.5,1);
}

.social-links a:hover {
    color: var(--ink);
    transform: translateY(-2px);
}

.social-links a svg {
    width: 20px !important;
    height: 20px !important;
    flex-shrink: 0;
}

/* ── RESPONSIVE ───────────────────────────────────────────────────────── */
@media (max-width: 600px) {
    :root { --pad-h: var(--pad-h-sm); }

    nav {
        padding: 24px var(--pad-h-sm);
        align-items: center;
    }

    .hamburger { display: flex; }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--paper);
        border-bottom: 1px solid var(--line);
        flex-direction: column;
        gap: 0;
        padding: 8px 0 16px;
        z-index: 1000;
    }

    .nav-links.is-open { display: flex; }

    .nav-links a {
        padding: 12px var(--pad-h-sm);
        font-size: 0.9rem;
    }

    .nav-links .nav-enter {
        margin-top: 4px;
        border-top: 1px solid var(--line);
        padding-top: 16px;
    }

    footer {
        padding: 28px var(--pad-h-sm);
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}