/* ==========================================================================
   PORTFOLIO FOTOGRAFICO - STILI PRINCIPALI
   Design: Moderno, Elegante, Editoriale Minimalista Scuro
   ========================================================================== */

/* 1. VARIABILI E DESIGN TOKENS (PALETTE STREET B&W MONOCROMATICA) */
:root {
    --bg-main: #060608;
    --bg-surface: #0e0e12;
    --bg-surface-elevated: #15151b;
    --bg-glass: rgba(8, 8, 10, 0.85);
    
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #6b6b76;
    
    --accent: #f4f4f6; /* Argento / Bianco puro per contrasto B&W */
    --accent-hover: #ffffff;
    --accent-subtle: rgba(255, 255, 255, 0.1);
    
    --border-subtle: rgba(255, 255, 255, 0.09);
    --border-hover: rgba(255, 255, 255, 0.25);
    --border-accent: rgba(255, 255, 255, 0.6);

    --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    
    --container-max-w: 1440px;
    --header-height: 96px;
}

/* 2. RESET E BASE */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    color-scheme: dark;
    font-size: 16px;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

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

/* Container comune */
.container {
    width: 100%;
    max-width: var(--container-max-w);
    margin: 0 auto;
    padding: 0 2rem;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.25rem;
    }
}

/* ==========================================================================
   2.1 PAGINA DI COPERTINA (COVER SPLASH SCREEN SU HOMEPAGE SFOCATA)
   ========================================================================== */
/* Blocco dello scroll a livello globale quando la copertina è attiva */
html.cover-active,
body.cover-active {
    overflow: hidden !important;
    height: 100% !important;
    position: fixed !important;
    width: 100% !important;
    touch-action: none !important;
    overscroll-behavior: none !important;
}

.cover-page {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    height: 100dvh;
    min-height: 100vh;
    z-index: 5000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #060608;
    background: rgba(6, 6, 8, 0.88);
    backdrop-filter: blur(28px) saturate(110%);
    -webkit-backdrop-filter: blur(28px) saturate(110%);
    overflow: hidden;
    touch-action: none;
    overscroll-behavior: none;
    transition: opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1),
                visibility 0.85s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
}

.cover-page.is-hidden {
    opacity: 0;
    visibility: hidden;
    transform: scale(1.04);
    pointer-events: none;
}

.cover-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 3rem 1.5rem;
    max-width: 740px;
    animation: coverFadeIn 1s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes coverFadeIn {
    from {
        opacity: 0;
        transform: translateY(22px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.cover-logo-img {
    height: clamp(85px, 14vw, 140px);
    width: auto;
    max-width: 90vw;
    object-fit: contain;
    margin-bottom: 2rem;
    filter: drop-shadow(0 8px 30px rgba(0, 0, 0, 0.9));
    transition: transform 0.4s ease;
}

.cover-logo-img:hover {
    transform: scale(1.03);
}

.cover-title {
    font-family: var(--font-serif);
    font-size: clamp(2.2rem, 5.5vw, 3.6rem);
    font-weight: 400;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: #ffffff;
    line-height: 1.15;
    margin-bottom: 0.5rem;
}

.cover-tagline {
    font-size: clamp(0.75rem, 1.6vw, 0.92rem);
    text-transform: uppercase;
    letter-spacing: 0.35em;
    color: var(--text-secondary);
    margin-bottom: 2.75rem;
}

.cover-divider {
    width: 64px;
    height: 1px;
    background: rgba(255, 255, 255, 0.25);
    margin-bottom: 2.75rem;
}

.cover-enter-btn {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    padding: 1.15rem 3rem;
    border: 1px solid rgba(255, 255, 255, 0.35);
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    color: #ffffff;
    font-size: 0.88rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.24em;
    border-radius: 9999px;
    cursor: pointer;
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.6);
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.cover-enter-btn:hover {
    border-color: #ffffff;
    background: #ffffff;
    color: #060608;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 10px 35px rgba(255, 255, 255, 0.3);
}

.cover-enter-btn svg {
    transition: transform 0.3s ease;
}

.cover-enter-btn:hover svg {
    transform: translateX(5px);
}

/* ==========================================================================
   3. BARRA DI NAVIGAZIONE SUPERIORE (HEADER CON LOGO CENTRALE INGRANDITO)
   ========================================================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: var(--bg-glass);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-subtle);
    z-index: 1000;
    transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.header-inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    height: 100%;
}

.nav-left {
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.nav-right {
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

/* Logo Centrale Ingrandito */
.brand-center {
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
}

.brand-logo-img {
    height: 72px;
    width: auto;
    max-width: 320px;
    object-fit: contain;
    display: block;
    filter: brightness(1) drop-shadow(0 4px 16px rgba(0, 0, 0, 0.7));
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.brand-logo-img:hover {
    transform: scale(1.04);
    opacity: 0.95;
}

/* Nav Menu Links */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 2.75rem;
    list-style: none;
}

.nav-link {
    position: relative;
    font-size: 0.85rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--text-secondary);
    padding: 0.5rem 0;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--accent);
    transition: width var(--transition-normal);
}

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

.nav-link.active {
    color: var(--text-primary);
    font-weight: 500;
}

/* Mobile Menu Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    gap: 6px;
    border-radius: 8px;
    border: 1px solid var(--border-subtle);
}

.mobile-toggle span {
    display: block;
    width: 22px;
    height: 1.5px;
    background-color: var(--text-primary);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.mobile-toggle.is-active span:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
}

.mobile-toggle.is-active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.is-active span:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
}

/* Menu mobile drawer: sempre nascosto di default su schermi desktop */
.mobile-drawer {
    display: none;
}

/* 4. STRUTTURA DELLE SEZIONI */
main {
    margin-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
}

.section {
    padding: 5rem 0 6.5rem;
    position: relative;
    scroll-margin-top: var(--header-height);
}

.section-header {
    margin-bottom: 3.5rem;
    text-align: center;
}

.section-tag {
    display: inline-block;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4.5vw, 3.25rem);
    font-weight: 400;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    line-height: 1.2;
}

.section-desc {
    max-width: 600px;
    margin: 1rem auto 0;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 300;
}

/* 5. SEZIONE PORTFOLIO (HOME PAGE) */
#portfolio {
    padding-top: 3.5rem;
}

.portfolio-hero {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-subtle);
}

.hero-headline h1 {
    font-family: var(--font-serif);
    font-size: clamp(2.2rem, 5vw, 4rem);
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.hero-headline h1 span {
    font-style: italic;
    color: var(--accent);
}

.hero-stats {
    text-align: right;
    color: var(--text-muted);
    font-size: 0.85rem;
    letter-spacing: 0.08em;
}

.hero-stats strong {
    color: var(--text-primary);
    font-size: 1.4rem;
    font-family: var(--font-serif);
    display: block;
}

/* Filtri Categoria */
.filter-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 3.5rem;
}

.filter-btn {
    font-size: 0.82rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.55rem 1.4rem;
    border-radius: 9999px;
    border: 1px solid var(--border-subtle);
    background: transparent;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.03);
}

.filter-btn.active {
    border-color: var(--accent);
    background: var(--accent-subtle);
    color: var(--accent-hover);
    font-weight: 500;
}

/* Griglia Fotografica Masonry (Form Factor Nativo - Nessun Crop) */
.gallery-grid {
    column-count: 3;
    column-gap: 2rem;
    width: 100%;
}

@media (max-width: 1100px) {
    .gallery-grid {
        column-count: 2;
        column-gap: 1.5rem;
    }
}

@media (max-width: 640px) {
    .gallery-grid {
        column-count: 1;
        column-gap: 1.25rem;
    }
}

/* Card Foto Masonry */
.photo-card {
    display: inline-block;
    width: 100%;
    margin-bottom: 2rem;
    break-inside: avoid;
    -webkit-column-break-inside: avoid;
    page-break-inside: avoid;
    position: relative;
    border-radius: 4px;
    overflow: hidden;
    background-color: var(--bg-surface);
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.photo-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 22px 50px rgba(0, 0, 0, 0.7);
}

.photo-card-img-wrap {
    position: relative;
    width: 100%;
    height: auto;
    overflow: hidden;
    background-color: #0b0b0e;
}

.photo-card-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    transition: transform var(--transition-slow), filter var(--transition-normal);
    filter: brightness(0.96);
}

.photo-card:hover .photo-card-img {
    transform: scale(1.03);
    filter: brightness(1.02);
}

/* Overlay Card */
.photo-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(9, 9, 11, 0.95) 0%,
        rgba(9, 9, 11, 0.4) 45%,
        rgba(9, 9, 11, 0.05) 100%
    );
    opacity: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.75rem;
    transition: opacity var(--transition-normal);
}

.photo-card:hover .photo-overlay {
    opacity: 1;
}

.overlay-tag {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--accent);
    margin-bottom: 0.35rem;
}

.overlay-title {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.overlay-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.overlay-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.view-indicator {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: transform var(--transition-fast), background var(--transition-fast);
}

.photo-card:hover .view-indicator {
    transform: scale(1.08);
    background: var(--accent);
    color: #000;
}

/* 6. MODALE LIGHTBOX */
.lightbox-modal {
    position: fixed;
    inset: 0;
    background-color: rgba(5, 5, 8, 0.96);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.lightbox-modal.is-open {
    opacity: 1;
    pointer-events: auto;
}

/* Top bar Lightbox */
.lightbox-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 2rem;
    border-bottom: 1px solid var(--border-subtle);
}

.lightbox-counter {
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    color: var(--text-muted);
}

.lightbox-counter strong {
    color: var(--text-primary);
}

.lightbox-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.lightbox-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.lightbox-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-hover);
    transform: scale(1.05);
}

/* Main Lightbox Stage */
.lightbox-stage {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    overflow: hidden;
}

.lightbox-img-wrapper {
    position: relative;
    max-width: 90vw;
    max-height: 72vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-img {
    max-width: 100%;
    max-height: 72vh;
    object-fit: contain;
    border-radius: 3px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.8);
    transition: opacity 0.25s ease;
}

/* Pulsanti Navigazione Lightbox */
.lightbox-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 54px;
    height: 54px;
    border-radius: 50%;
    background: rgba(24, 24, 31, 0.6);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    z-index: 10;
}

.lightbox-nav-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #000;
}

.lightbox-prev {
    left: 2rem;
}

.lightbox-next {
    right: 2rem;
}

@media (max-width: 768px) {
    .lightbox-prev { left: 0.75rem; }
    .lightbox-next { right: 0.75rem; }
    .lightbox-nav-btn { width: 44px; height: 44px; }
}

/* Dettagli foto nel Lightbox */
.lightbox-bottombar {
    padding: 1.25rem 2.5rem 1.75rem;
    border-top: 1px solid var(--border-subtle);
    background: rgba(10, 10, 14, 0.8);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.lightbox-info {
    max-width: 60%;
}

.lightbox-title {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 400;
    margin-bottom: 0.25rem;
}

.lightbox-desc {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 300;
}

.lightbox-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    border-left: 1px solid var(--border-subtle);
    padding-left: 1.5rem;
}

.spec-item strong {
    color: var(--text-secondary);
    display: block;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

@media (max-width: 900px) {
    .lightbox-bottombar {
        flex-direction: column;
        align-items: flex-start;
        padding: 1rem 1.25rem;
        gap: 0.75rem;
    }
    .lightbox-info {
        max-width: 100%;
    }
    .lightbox-specs {
        border-left: none;
        padding-left: 0;
        gap: 1rem;
    }
}

/* 7. SEZIONE ABOUT */
#about {
    background-color: var(--bg-surface);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4.5rem;
    align-items: center;
}

.about-portrait-wrap {
    position: relative;
}

.about-portrait-wrap::before {
    content: '';
    position: absolute;
    top: -16px;
    left: -16px;
    width: 100%;
    height: 100%;
    border: 1px solid var(--border-accent);
    border-radius: 4px;
    z-index: 0;
}

.about-portrait {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
    border-radius: 4px;
    z-index: 1;
    filter: grayscale(20%) contrast(1.05);
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.about-quote {
    font-family: var(--font-serif);
    font-size: clamp(1.4rem, 2.5vw, 1.85rem);
    line-height: 1.35;
    color: var(--text-primary);
    font-style: italic;
    border-left: 2px solid var(--accent);
    padding-left: 1.5rem;
}

.about-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
    font-weight: 300;
}

/* Services / Approccio */
.services-section {
    margin-top: 4.5rem;
    padding-top: 3.5rem;
    border-top: 1px solid var(--border-subtle);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.service-card {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    padding: 2.25rem 2rem;
    border-radius: 6px;
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-accent);
}

.service-num {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 1rem;
    display: block;
}

.service-title {
    font-size: 1.15rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.service-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

@media (max-width: 960px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .services-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
}

/* 8. SEZIONE CONTATTI */
#contatti {
    position: relative;
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 4rem;
}

.contact-info-panel {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-intro {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.contact-details-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
}

.contact-item-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    flex-shrink: 0;
}

.contact-item-text span {
    display: block;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-muted);
}

.contact-item-text a,
.contact-item-text p {
    font-size: 1.05rem;
    color: var(--text-primary);
    font-weight: 400;
}

.contact-item-text a:hover {
    color: var(--accent);
}

/* Social links */
.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.25rem;
    border-radius: 9999px;
    border: 1px solid var(--border-subtle);
    background: var(--bg-surface);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.social-btn:hover {
    border-color: var(--accent);
    color: var(--accent-hover);
    transform: translateY(-2px);
}

/* Form Contatti */
.contact-form-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 2.75rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    padding: 0.85rem 1.15rem;
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-subtle);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.form-submit-btn {
    width: 100%;
    padding: 1rem 2rem;
    background: var(--accent);
    color: #09090b;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: background var(--transition-fast), transform var(--transition-fast);
    margin-top: 0.5rem;
}

.form-submit-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

.form-submit-btn:active {
    transform: translateY(0);
}

@media (max-width: 900px) {
    .contact-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .contact-form-card {
        padding: 1.75rem;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* 9. NOTIFICA TOAST */
.toast-notification {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--accent);
    color: var(--text-primary);
    padding: 1rem 1.75rem;
    border-radius: 6px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    gap: 0.85rem;
    z-index: 3000;
    transform: translateY(100px);
    opacity: 0;
    transition: all var(--transition-normal);
}

.toast-notification.show {
    transform: translateY(0);
    opacity: 1;
}

.toast-icon {
    color: var(--accent);
    font-size: 1.25rem;
}

/* 10. FOOTER */
.site-footer {
    border-top: 1px solid var(--border-subtle);
    padding: 3rem 0;
    background: var(--bg-main);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.back-to-top {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: color var(--transition-fast);
}

.back-to-top:hover {
    color: var(--accent);
}

@media (max-width: 640px) {
    .footer-inner {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
}

/* 11. MOBILE MENU DRAWER & RESPONSIVE MOBILE */
@media (max-width: 860px) {
    :root {
        --header-height: 80px;
    }

    .site-header {
        height: var(--header-height);
    }

    .header-inner {
        display: flex;
        justify-content: center;
        align-items: center;
        height: 100%;
        position: relative;
    }
    
    .nav-left, .nav-right {
        display: none !important;
    }

    .brand-center {
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: center;
        height: 100%;
    }

    .brand-logo-img {
        height: 52px;
        max-width: 210px;
        object-fit: contain;
    }

    .mobile-toggle {
        display: flex;
        position: absolute;
        right: 0;
        top: 50%;
        transform: translateY(-50%);
    }

    .mobile-drawer {
        display: none;
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        background: rgba(8, 8, 10, 0.98);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        padding: 2.25rem 2rem;
        border-bottom: 1px solid var(--border-subtle);
        z-index: 999;
    }

    .mobile-drawer.is-open {
        display: flex;
        flex-direction: column;
    }

    .mobile-nav-list {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
    }

    .mobile-nav-link {
        font-size: 1.1rem;
        text-transform: uppercase;
        letter-spacing: 0.2em;
        color: var(--text-secondary);
        transition: color var(--transition-fast);
    }

    .mobile-nav-link:hover,
    .mobile-nav-link.active {
        color: #ffffff;
        font-weight: 500;
    }

    /* Copertina su Mobile: proporzioni calibrate e centratura perfetta */
    .cover-content {
        padding: 2rem 1.25rem;
        max-width: 90vw;
    }

    .cover-logo-img {
        height: clamp(65px, 15vw, 95px);
        margin-bottom: 1.5rem;
    }

    .cover-title {
        font-size: clamp(1.8rem, 6.5vw, 2.5rem);
        margin-bottom: 0.35rem;
    }

    .cover-tagline {
        font-size: clamp(0.7rem, 2.4vw, 0.82rem);
        margin-bottom: 1.75rem;
        letter-spacing: 0.25em;
    }

    .cover-divider {
        margin-bottom: 1.75rem;
    }

    .cover-enter-btn {
        padding: 0.95rem 2.25rem;
        font-size: 0.82rem;
        letter-spacing: 0.18em;
    }
}