/* ============================================================
   styles.css — The Power of 30
   Mobile first · Dark theme base · No media queries
   ============================================================ */

/* ── TOKENS ── */
:root {
    --color-bg:           #1a2235;
    --color-bg-deep:      #131926;
    --color-surface:      #1f2b40;
    --color-border:       rgba(255,255,255,0.08);
    --color-border-light: rgba(255,255,255,0.14);
    --color-copper:       #c9956a;
    --color-copper-dark:  #a07050;
    --color-copper-light: #ddb48e;
    --color-text:         #e8e2da;
    --color-text-muted:   rgba(232,226,218,0.45);
    --color-text-light:   rgba(232,226,218,0.22);

    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body:    'Jost', sans-serif;

    --space-xs:  4px;
    --space-sm:  8px;
    --space-md:  16px;
    --space-lg:  24px;
    --space-xl:  40px;
    --space-2xl: 64px;
    --space-3xl: 96px;

    --header-h:  80px;
    --radius-sm: 2px;
    --radius-md: 4px;

    --transition-fast:   150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow:   480ms cubic-bezier(.25,.46,.45,.94);

    --grid-gap:  3px;
    --grid-cols: 3;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    scroll-padding-top: calc(var(--header-h) + 24px);
    background-color: #1a2235;
}

body {
    background-color: #1a2235;
    color: #e8e2da;
    font-family: var(--font-body);
    font-weight: 300;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

img    { display: block; max-width: 100%; }
a      { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; color: inherit; }

/* ── HEADER ── */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-md);
    background-color: #131926;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.logo-link {
    display: flex;
    align-items: center;
    height: 100%;
    padding: var(--space-sm) 0;
}

.logo-img {
    height: 56px;
    width: auto;
    object-fit: contain;
}

/* Bottone menu + */
.menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.14);
    color: #e8e2da;
    transition: border-color var(--transition-fast), background var(--transition-fast);
    flex-shrink: 0;
}
.menu-btn svg { width: 20px; height: 20px; }
.menu-btn:hover,
.menu-btn[aria-expanded="true"] {
    border-color: #c9956a;
    background: rgba(201,149,106,.1);
    color: #ddb48e;
}

/* ── NAV MENU DRAWER ── */
.nav-menu-backdrop {
    display: none;
    position: fixed; inset: 0;
    z-index: 190;
    background: rgba(13,18,29,.75);
    backdrop-filter: blur(3px);
}
.nav-menu-backdrop.is-open { display: block; }

.nav-menu {
    position: fixed;
    top: 0; right: 0;
    z-index: 200;
    width: min(300px, 85vw);
    height: 100dvh;
    background: #131926;
    border-left: 1px solid rgba(255,255,255,0.08);
    display: flex;
    flex-direction: column;
    padding: var(--space-lg);
    transform: translateX(100%);
    transition: transform 300ms cubic-bezier(.4,0,.2,1);
    overflow-y: auto;
}
.nav-menu[hidden] { display: flex; }
.nav-menu.is-open { transform: translateX(0); }

.nav-menu-close {
    align-self: flex-end;
    width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.14);
    color: rgba(232,226,218,0.45);
    margin-bottom: var(--space-xl);
    flex-shrink: 0;
    transition: color var(--transition-fast);
}
.nav-menu-close svg { width: 18px; height: 18px; }
.nav-menu-close:hover { color: #e8e2da; }

.nav-menu-list {
    list-style: none;
    display: flex;
    flex-direction: column;
}

.nav-menu-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-xs);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transition: color var(--transition-fast);
}
.nav-menu-link:hover,
.nav-menu-link:focus-visible,
.nav-menu-link.is-active { color: #ddb48e; outline: none; }

.nav-menu-label {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 300;
    font-style: italic;
    line-height: 1.2;
}
.nav-menu-count {
    font-size: 10px;
    letter-spacing: 2px;
    color: rgba(232,226,218,0.45);
    flex-shrink: 0;
}

/* ── MAIN ── */
.site-main {
    padding-top: calc(var(--header-h) + var(--space-lg));
    padding-left: var(--space-md);
    padding-right: var(--space-md);
}

/* ── GALLERY SECTION ── */
.gallery-section {
    padding-top: var(--space-2xl);
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.gallery-section:last-child { border-bottom: none; }

.section-header {
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(40px, 10vw, 72px);
    font-weight: 300;
    font-style: italic;
    line-height: 1;
    color: #e8e2da;
    letter-spacing: -0.5px;
}

/* ── PHOTO GRID ── */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(var(--grid-cols), 1fr);
    gap: var(--grid-gap);
}

/* ── PHOTO ITEM ── */
.photo-item {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    background-color: #1f2b40;
    aspect-ratio: 1 / 1;
}
.photo-item img {
    width: 100%; height: 100%;
    object-fit: cover;
    object-position: center center;
    transition: transform var(--transition-slow);
    will-change: transform;
}
.photo-item:hover img,
.photo-item:focus-visible img { transform: scale(1.05); }
.photo-item:focus-visible { outline: 2px solid #c9956a; outline-offset: 2px; }

.photo-overlay {
    position: absolute; inset: 0;
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    padding: var(--space-sm);
    background: linear-gradient(to top, rgba(13,18,29,.65) 0%, transparent 55%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}
.photo-item:hover .photo-overlay,
.photo-item:focus-within .photo-overlay { opacity: 1; }

.photo-dl-btn {
    display: flex;
    align-items: center; justify-content: center;
    width: 32px; height: 32px;
    border-radius: 50%;
    background: rgba(255,255,255,.1);
    border: 1px solid rgba(255,255,255,.25);
    color: #fff;
    backdrop-filter: blur(6px);
    transition: background var(--transition-fast);
}
.photo-dl-btn svg { width: 13px; height: 13px; }
.photo-dl-btn:hover { background: rgba(201,149,106,.45); border-color: #ddb48e; }

/* ── EMPTY STATE ── */
.empty-state {
    padding: var(--space-3xl) 0;
    text-align: center;
    font-size: 11px;
    letter-spacing: 3px;
    color: rgba(232,226,218,0.22);
    font-style: italic;
    font-family: var(--font-display);
}

/* ── FOOTER ── */
.site-footer {
    padding: var(--space-xl) var(--space-md);
    text-align: center;
    font-size: 9px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(232,226,218,0.22);
    border-top: 1px solid rgba(255,255,255,0.08);
    margin-top: var(--space-xl);
    background-color: #1a2235;
}

/* ── LIGHTBOX ── */
.lb-backdrop {
    display: none;
    position: fixed; inset: 0;
    background: rgba(10,14,22,.97);
    z-index: 900;
}
.lightbox {
    display: none;
    position: fixed; inset: 0;
    z-index: 910;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.lb-backdrop.is-open,
.lightbox.is-open { display: flex; }
.lightbox.is-open { animation: lbFadeIn 180ms ease; }

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

.lb-stage {
    display: flex;
    align-items: center; justify-content: center;
    width: 100%; flex: 1;
    padding: 56px var(--space-md) var(--space-sm);
    min-height: 0;
}
.lb-image {
    max-width: 100%; max-height: 100%;
    object-fit: contain;
    border-radius: var(--radius-sm);
    box-shadow: 0 24px 64px rgba(0,0,0,.7);
}
.lb-close {
    position: fixed; top: var(--space-md); right: var(--space-md);
    z-index: 920;
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    color: rgba(255,255,255,.5);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 50%;
    transition: color var(--transition-fast);
}
.lb-close svg { width: 20px; height: 20px; }
.lb-close:hover { color: #fff; }

.lb-arrow {
    position: fixed; top: 50%; transform: translateY(-50%);
    z-index: 920;
    width: 44px; height: 44px;
    display: flex; align-items: center; justify-content: center;
    color: rgba(255,255,255,.4);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 50%;
    transition: color var(--transition-fast), background var(--transition-fast);
}
.lb-arrow svg { width: 20px; height: 20px; }
.lb-prev { left: var(--space-sm); }
.lb-next { right: var(--space-sm); }
.lb-arrow:hover { color: #fff; background: rgba(201,149,106,.15); border-color: #a07050; }

.lb-bar {
    display: flex;
    align-items: center; justify-content: space-between;
    width: 100%;
    padding: var(--space-sm) var(--space-lg);
    gap: var(--space-md);
}
.lb-counter { font-size: 9px; letter-spacing: 3px; color: rgba(255,255,255,.3); }
.lb-dl-link {
    display: inline-flex; align-items: center; gap: var(--space-sm);
    font-size: 9px; font-weight: 400; letter-spacing: 2.5px; text-transform: uppercase;
    color: #ddb48e;
    border: 1px solid rgba(201,149,106,.25);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}
.lb-dl-link svg { width: 11px; height: 11px; }
.lb-dl-link:hover { background: rgba(201,149,106,.12); }

/* ── INTRO ── */
.gallery-intro {
    padding: var(--space-2xl) 0 var(--space-xl);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    margin-bottom: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.intro-text {
    font-family: var(--font-display);
    font-size: clamp(18px, 3vw, 24px);
    font-weight: 300;
    font-style: italic;
    line-height: 1.6;
    color: #e8e2da;
}

.intro-sub {
    font-size: 12px;
    letter-spacing: 2px;
    color: rgba(232,226,218,0.45);
    text-transform: uppercase;
    line-height: 1.8;
}