/* ============================================
   ARCHITECTURAL ENGINEERING PORTFOLIO - STYLES
   Design ispirato a geometrie architettoniche
   e ingegneria strutturale
   ============================================ */

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Palette scura professionale */
    --color-bg-primary: #464646;
    --color-bg-secondary: #3A3A3A;
    --color-bg-tertiary: #505050;
    
    /* Testo bianco e grigi chiari */
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #E0E0E0;
    --color-text-tertiary: #B0B0B0;
    
    /* Accenti chiari */
    --color-accent: #FFFFFF;
    --color-accent-light: #E0E0E0;
    --color-line: rgba(255, 255, 255, 0.1);
    --color-line-strong: rgba(255, 255, 255, 0.3);
    
    /* Tipografia */
    --font-primary: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spaziatura modulare (sistema 8px) */
    --spacing-xs: 0.5rem;   /* 8px */
    --spacing-sm: 1rem;     /* 16px */
    --spacing-md: 1.5rem;   /* 24px */
    --spacing-lg: 2rem;     /* 32px */
    --spacing-xl: 3rem;     /* 48px */
    --spacing-xxl: 4rem;    /* 64px */
    --spacing-xxxl: 6rem;   /* 96px */
    
    /* Transizioni */
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-primary);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
}

/* === TIPOGRAFIA === */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

/* === NAVIGATION === */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(70, 70, 70, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-line);
    transition: var(--transition-base);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: var(--transition-base);
}

.nav-logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-base);
    display: block;
}

.nav-logo-link:hover .nav-logo-img {
    opacity: 0.8;
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-menu li {
    display: flex;
    align-items: center;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    text-decoration: none;
    position: relative;
    transition: var(--transition-base);
    padding: var(--spacing-xs) var(--spacing-sm);
    display: block;
    width: 100%;
    text-align: center;
}

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

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    z-index: 1001;
    position: relative;
    -webkit-tap-highlight-color: transparent;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: var(--transition-base);
}

/* === HERO SECTION === */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background-color: var(--color-bg-primary);
    padding-top: 80px;
}

.hero-container {
    max-width: 1400px;
    width: 100%;
    padding: var(--spacing-xl) var(--spacing-lg);
    position: relative;
    z-index: 2;
}

.hero-geometry {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    opacity: 0.3;
}

.hero-mesh {
    width: 100%;
    height: 100%;
    color: var(--color-accent);
}

.structural-line {
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    animation: drawLine 2s ease-out forwards;
}

.line-2 {
    animation-delay: 0.5s;
}

.hero-arch {
    stroke-dasharray: 1500;
    stroke-dashoffset: 1500;
    animation: drawLine 2.5s ease-out 1s forwards;
}

@keyframes drawLine {
    to {
        stroke-dashoffset: 0;
    }
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-logo-wrapper {
    margin-bottom: var(--spacing-sm);
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.2s forwards;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-logo {
    height: clamp(100px, 12vw, 180px);
    width: auto;
    object-fit: contain;
    transition: var(--transition-base);
    display: block;
    max-width: 100%;
}

.hero-title-seo {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
    font-size: 1px;
}

.hero-title-wrapper {
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
}

.hero-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--color-text-primary);
    line-height: 1.2;
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 0.2em;
}

.hero-title-line {
    display: block;
    position: relative;
    overflow: hidden;
}

.hero-title-line::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--color-bg-primary), transparent);
    animation: revealText 1.5s ease-out forwards;
}

@keyframes revealText {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(100%);
    }
}

.hero-subtitle-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.hero-subtitle-line {
    width: 300px;
    height: 3px;
    background-color: #FFFFFF;
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.5s forwards;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-secondary);
    font-weight: 400;
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.5s forwards;
}

.hero-tagline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.8s forwards;
}

.tagline-line {
    width: 60px;
    height: 1px;
    background-color: var(--color-line-strong);
    transform: scaleX(0);
    animation: scaleXIn 1s ease-out 1s forwards;
}

.tagline-text {
    font-size: 0.9rem;
    color: var(--color-text-tertiary);
    letter-spacing: 0.1em;
    font-weight: 500;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleXIn {
    to {
        transform: scaleX(1);
    }
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    opacity: 0;
    animation: fadeIn 1s ease-out 1.5s forwards;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background-color: var(--color-line-strong);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0%, 100% {
        transform: scaleY(1);
        opacity: 1;
    }
    50% {
        transform: scaleY(0.3);
        opacity: 0.5;
    }
}

.scroll-text {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

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

/* === SECTION STYLES === */
section {
    padding: var(--spacing-xxxl) 0;
    position: relative;
}

.section-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xxl);
    opacity: 0;
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

/* Fallback: mostra contenuto se JS non è disponibile o dopo caricamento */
body.loaded .section-header,
.no-js .section-header {
    opacity: 1;
}

.section-number {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-tertiary);
    letter-spacing: 0.1em;
    min-width: 40px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 600;
    color: var(--color-text-primary);
    flex: 1;
}

.section-line {
    flex: 1;
    height: 1px;
    background-color: var(--color-line);
    position: relative;
    overflow: hidden;
}

.section-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 1s ease-out;
}

.section-header.revealed .section-line::after {
    transform: scaleX(1);
}

/* === ABOUT SECTION === */
.about {
    background-color: var(--color-bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: start;
}

.about-text {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.about-module {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.about-module.revealed,
body.loaded .about-module,
.no-js .about-module {
    opacity: 1;
    transform: translateY(0);
}

.module-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
    position: relative;
    padding-left: var(--spacing-md);
}

.module-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background-color: var(--color-accent);
}

.module-text {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.about-visual {
    position: sticky;
    top: 120px;
    height: fit-content;
}

.photo-container {
    position: relative;
    aspect-ratio: 1;
    max-width: 500px;
    margin: 0 auto;
}

.photo-frame {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    background-color: var(--color-bg-tertiary);
    border: 2px solid var(--color-line);
}

.photo-geometry {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    color: var(--color-accent);
    opacity: 0.2;
}

.photo-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    filter: grayscale(100%);
    transition: filter var(--transition-slow), transform var(--transition-slow);
}

.photo-frame:hover .photo-image {
    filter: grayscale(0%);
    transform: scale(1.05);
}

.photo-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-bg-tertiary) 0%, var(--color-bg-secondary) 100%);
}

.photo-text {
    font-size: 0.9rem;
    color: var(--color-text-tertiary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.technical-overlay {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 150px;
    height: 150px;
    z-index: 2;
    opacity: 0.3;
}

.technical-drawing {
    width: 100%;
    height: 100%;
    color: var(--color-accent);
}

/* === PROGETTI SECTION === */
.progetti {
    background-color: var(--color-bg-primary);
}

.progetti-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.progetto-card {
    position: relative;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-line);
    padding: var(--spacing-xl);
    transition: var(--transition-base);
    overflow: hidden;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out, box-shadow 0.3s ease-out;
}

.progetto-card.revealed,
body.loaded .progetto-card,
.no-js .progetto-card {
    opacity: 1;
    transform: translateY(0);
}

.progetto-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.progetto-card:hover::before {
    transform: scaleX(1);
}

.progetto-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
}

.card-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
    transition: opacity var(--transition-base), transform var(--transition-slow);
    filter: grayscale(100%);
}

.progetto-card:hover .card-image {
    opacity: 0.4;
    transform: scale(1.05);
    filter: grayscale(50%);
}

.card-geometry {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.05;
    pointer-events: none;
    z-index: 0;
}

.card-geometry svg {
    width: 100%;
    height: 100%;
    color: var(--color-accent);
}

.card-content {
    position: relative;
    z-index: 1;
}

.card-number {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-tertiary);
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-md);
}

.card-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.card-location {
    font-size: 0.9rem;
    color: var(--color-text-tertiary);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.card-description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.card-details {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-line);
}

.detail-item {
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
    font-weight: 500;
}

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
    z-index: 1;
}

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

.overlay-drawing {
    width: 100%;
    height: 100%;
    color: var(--color-accent);
}

/* === COMPETENZE SECTION === */
.competenze {
    background-color: var(--color-bg-secondary);
}

.competenze-content {
    position: relative;
}

.timeline-axis {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--color-line);
    transform: translateX(-50%);
    opacity: 0.3;
}

.competenze-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.competenza-item {
    background-color: var(--color-bg-primary);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-line);
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.competenza-item.revealed,
body.loaded .competenza-item,
.no-js .competenza-item {
    opacity: 1;
    transform: translateX(0);
}

.competenza-item:nth-child(even) {
    transform: translateX(30px);
}

.competenza-item:nth-child(even).revealed,
body.loaded .competenza-item:nth-child(even),
.no-js .competenza-item:nth-child(even) {
    transform: translateX(0);
}

.skill-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
}

.cad-icon {
    width: 100%;
    height: 100%;
}

.skill-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.skill-description {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.skill-level {
    width: 100%;
    height: 4px;
    background-color: var(--color-line);
    position: relative;
    overflow: hidden;
}

.skill-bar {
    height: 100%;
    background-color: var(--color-accent);
    width: 0;
    transition: width 1.5s ease-out 0.5s;
}

.competenza-item.revealed .skill-bar {
    width: var(--skill-width, 0%);
}

/* Fallback per skill bars - verrà gestito da JS */
body.loaded .competenza-item.revealed .skill-bar[data-level] {
    width: var(--skill-width, 0%);
}

/* === CONTATTI SECTION === */
.contatti {
    background-color: var(--color-bg-primary);
    position: relative;
    overflow: hidden;
}

.contatti-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.3;
}

.contatti-pattern svg {
    width: 100%;
    height: 100%;
    color: var(--color-accent);
}

.contatti-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xxl);
    position: relative;
    z-index: 1;
}

.contatti-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.info-module {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.info-module.revealed,
body.loaded .info-module,
.no-js .info-module {
    opacity: 1;
    transform: translateX(0);
}

.info-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.info-item {
    margin-bottom: var(--spacing-md);
}

.info-label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.info-value {
    display: block;
    font-size: 1rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: var(--transition-base);
    line-height: 1.6;
}

.info-value:hover {
    color: var(--color-text-primary);
}

.contatti-form-wrapper {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.contatti-form-wrapper.revealed,
body.loaded .contatti-form-wrapper,
.no-js .contatti-form-wrapper {
    opacity: 1;
    transform: translateX(0);
}

.contatti-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    position: relative;
}

.form-label {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.25rem;
    font-weight: 500;
}

.form-input {
    width: 100%;
    padding: 0.5rem 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-line);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    color: var(--color-text-primary);
    transition: var(--transition-base);
    outline: none;
}

.form-input:focus {
    border-bottom-color: var(--color-accent);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.form-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: width var(--transition-base);
}

.form-input:focus ~ .form-line {
    width: 100%;
}

.form-message {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 2px;
    font-size: 0.85rem;
    line-height: 1.4;
    transition: var(--transition-base);
}

.form-message-success {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--color-text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.form-message-error {
    background-color: rgba(244, 67, 54, 0.15);
    color: #F44336;
    border: 1px solid rgba(244, 67, 54, 0.25);
}

.form-submit {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: transparent;
    border: 1px solid var(--color-accent);
    color: var(--color-text-primary);
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: var(--transition-base);
    align-self: flex-start;
}

.form-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-group-checkbox {
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.form-checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
    cursor: pointer;
}

.form-checkbox {
    margin-top: 2px;
    width: 16px;
    height: 16px;
    cursor: pointer;
    flex-shrink: 0;
}

.checkbox-text {
    flex: 1;
}

.gdpr-link {
    color: var(--color-text-primary);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
    transition: var(--transition-base);
}

.gdpr-link:hover {
    opacity: 0.8;
}

.form-submit::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background-color: var(--color-accent);
    transition: left var(--transition-base);
    z-index: -1;
}

.form-submit:hover {
    color: var(--color-bg-primary);
}

.form-submit:hover::before {
    left: 0;
}

.submit-text {
    position: relative;
    z-index: 1;
}

/* === FOOTER === */
.footer {
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-line);
    padding: var(--spacing-lg) 0;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-logo-wrapper {
    display: flex;
    align-items: center;
}

.footer-logo {
    height: 30px;
    width: auto;
    object-fit: contain;
    display: block;
    opacity: 0.7;
    transition: var(--transition-base);
}

.footer-logo:hover {
    opacity: 1;
}

.footer-text {
    font-size: 0.9rem;
    color: var(--color-text-tertiary);
}

.footer-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-link {
    font-size: 0.9rem;
    color: var(--color-text-tertiary);
    text-decoration: none;
    transition: var(--transition-base);
}

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

.footer-separator {
    color: var(--color-text-tertiary);
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-visual {
        position: static;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .contatti-content {
        grid-template-columns: 1fr;
    }
    
    .progetti-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xxxl: 4rem;
        --spacing-xxl: 3rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--color-bg-secondary);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: 0;
        border-bottom: 1px solid var(--color-line);
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition-base);
        z-index: 999;
    }
    
    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid var(--color-line);
    }
    
    .nav-menu li:last-child {
        border-bottom: none;
    }
    
    .nav-link {
        padding: var(--spacing-md) var(--spacing-lg);
        width: 100%;
        text-align: left;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: clamp(1.4rem, 4vw, 1.8rem);
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .section-line {
        width: 100%;
    }
    
    .progetti-grid {
        grid-template-columns: 1fr;
    }
    
    .competenze-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline-axis {
        display: none;
    }
    
    .competenza-item,
    .competenza-item:nth-child(even) {
        transform: translateY(30px);
    }
    
    .competenza-item.revealed,
    .competenza-item:nth-child(even).revealed {
        transform: translateY(0);
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .section-container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-container {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .progetto-card {
        padding: var(--spacing-md);
    }
}

/* === UTILITY CLASSES === */
.hidden {
    opacity: 0;
    visibility: hidden;
}

.visible {
    opacity: 1;
    visibility: visible;
}

/* === COOKIE BANNER === */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-line);
    padding: var(--spacing-md) var(--spacing-lg);
    z-index: 10000;
    transform: translateY(100%);
    transition: transform var(--transition-base);
    box-shadow: 0 -2px 20px rgba(0, 0, 0, 0.1);
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-banner-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.cookie-text {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
    flex: 1;
    min-width: 250px;
}

.cookie-link {
    color: var(--color-text-primary);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
    transition: var(--transition-base);
}

.cookie-link:hover {
    opacity: 0.8;
}

.cookie-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.cookie-accept {
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-accent);
    color: var(--color-bg-primary);
    border: 1px solid var(--color-accent);
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    white-space: nowrap;
}

.cookie-accept:hover {
    background-color: transparent;
    color: var(--color-accent);
}

/* === GDPR MODAL === */
.gdpr-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
    padding: var(--spacing-lg);
}

.gdpr-modal.show {
    opacity: 1;
    visibility: visible;
}

.gdpr-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.gdpr-modal-content {
    position: relative;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-line);
    max-width: 700px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    z-index: 1;
    padding: var(--spacing-xl);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.gdpr-modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    color: var(--color-text-primary);
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
    opacity: 0.7;
}

.gdpr-modal-close:hover {
    opacity: 1;
}

.gdpr-modal-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
    padding-right: var(--spacing-xl);
}

.gdpr-modal-body {
    margin-bottom: var(--spacing-lg);
}

.gdpr-modal-body h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.gdpr-modal-body h3:first-child {
    margin-top: 0;
}

.gdpr-modal-body p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.gdpr-modal-body ul {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.gdpr-modal-body li {
    margin-bottom: var(--spacing-xs);
}

.gdpr-modal-body strong {
    color: var(--color-text-primary);
    font-weight: 600;
}

.gdpr-modal-footer {
    display: flex;
    justify-content: flex-end;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-line);
}

.gdpr-modal-accept {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-accent);
    color: var(--color-bg-primary);
    border: 1px solid var(--color-accent);
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
}

.gdpr-modal-accept:hover {
    background-color: transparent;
    color: var(--color-accent);
}

@media (max-width: 768px) {
    .cookie-banner-content {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .cookie-actions {
        width: 100%;
    }
    
    .cookie-accept {
        width: 100%;
    }
    
    .gdpr-modal-content {
        padding: var(--spacing-lg);
        max-height: 95vh;
    }
    
    .gdpr-modal-title {
        font-size: 1.5rem;
        padding-right: var(--spacing-lg);
    }
}