/* ============================================
   PORTFOLIO.CSS - Pagina Progetti Tecnici
   Design Coerente con Home2
   ============================================ */

/* Inherit root variables from home2.css */
:root {
    --primary: #FF6200;
    --secondary: #28a745;
    --dark: #1a1a1a;
    --darker: #0d0d0d;
    --light: #f8f9fa;
    --text-light: #e0e0e0;
    --text-dark: #333;
    --danger: #dc3545;
}

/* ── SVG icon sprite (sostituisce bootstrap-icons font) ── */
svg.bi {
    display: inline-block;
    vertical-align: -0.125em;
    fill: currentColor;
}

/* ============================================
   HERO PORTFOLIO
   ============================================ */
.hero-section {
    background: linear-gradient(135deg, var(--darker) 0%, var(--dark) 100%);
    padding: 8rem 0 5rem;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent, transparent 2px,
        rgba(255, 98, 0, 0.03) 2px, rgba(255, 98, 0, 0.03) 4px
    );
    pointer-events: none;
}

.hero-section .container { position: relative; z-index: 2; }

.hero-section .hero-badge {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 2rem;
}

.hero-section .hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    color: white;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-section .hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    color: var(--text-light);
    font-weight: 300;
}

/* ============================================
   SEZIONI PROGETTO
   ============================================ */
.project-section { padding: 5rem 0; }

.dark-section  { background: var(--dark);  color: var(--text-light); }
.light-section { background: var(--light); color: var(--text-dark); }

.project-header {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
}

.project-number {
    font-size: 8rem;
    font-weight: 900;
    opacity: 0.05;
    position: absolute;
    top: -3rem;
    left: 50%;
    transform: translateX(-50%);
    line-height: 1;
    pointer-events: none;
}

.dark-section  .project-number { color: white; }
.light-section .project-number { color: var(--text-dark); }

.project-title   { font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; margin-bottom: 0.5rem; position: relative; }
.project-tagline { font-size: clamp(1rem, 2vw, 1.3rem); opacity: 0.8; font-weight: 400; }

/* ============================================
   PROJECT DESCRIPTION
   ============================================ */
.project-description h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 1rem; color: var(--primary); }
.project-description p  { font-size: 1.05rem; line-height: 1.8; margin-bottom: 1.5rem; }

/* Feature List */
.feature-list { list-style: none; padding: 0; margin-top: 2rem; }

.feature-list li {
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: start;
    gap: 1rem;
    font-size: 1rem;
}

.light-section .feature-list li { border-bottom-color: rgba(0, 0, 0, 0.1); }
.feature-list li:last-child { border-bottom: none; }

.feature-list li svg.bi {
    width: 1.3rem;
    height: 1.3rem;
    color: var(--primary);
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.feature-list li strong { color: var(--primary); }

/* ============================================
   METRICS CARD
   ============================================ */
.metrics-card {
    background: rgba(255, 98, 0, 0.08);
    border: 2px solid rgba(255, 98, 0, 0.2);
    border-radius: 15px;
    padding: 2.5rem;
}

.light-section .metrics-card { background: white; box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1); }

.metrics-card h3 { font-size: 1.8rem; font-weight: 700; margin-bottom: 2rem; text-align: center; }
.dark-section  .metrics-card h3 { color: white; }
.light-section .metrics-card h3 { color: var(--text-dark); }

.metric-item { text-align: center; padding: 1.5rem 0; border-bottom: 1px solid rgba(255, 98, 0, 0.2); }
.metric-item:last-child { border-bottom: none; }
.metric-value { font-size: 3rem; font-weight: 900; color: var(--primary); line-height: 1; margin-bottom: 0.5rem; }
.metric-label { font-size: 0.95rem; opacity: 0.8; }

/* ============================================
   CASE STUDY & CARDS
   ============================================ */
.case-study-card {
    background: rgba(255, 98, 0, 0.05);
    border: 2px solid rgba(255, 98, 0, 0.2);
    border-radius: 15px;
    padding: 3rem;
    margin-top: 3rem;
}

.light-section .case-study-card {
    background: linear-gradient(135deg, rgba(255, 98, 0, 0.08) 0%, rgba(255, 98, 0, 0.02) 100%);
}

.case-study-card h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.dark-section  .case-study-card h3 { color: white; }
.light-section .case-study-card h3 { color: var(--text-dark); }

.case-study-card h3 svg.bi { width: 2rem; height: 2rem; color: var(--primary); }
.case-study-card p { font-size: 1.1rem; line-height: 1.8; }
.case-study-card a { color: var(--primary); text-decoration: none; font-weight: 700; border-bottom: 2px solid var(--primary); transition: all 0.3s ease; }
.case-study-card a:hover { color: #ff7a1f; border-bottom-color: #ff7a1f; }

/* Tech Stack */
.tech-stack { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.5rem; }
.tech-badge { display: inline-block; background: var(--primary); color: white; padding: 0.5rem 1rem; border-radius: 20px; font-size: 0.85rem; font-weight: 600; }

/* ============================================
   ARCHITECTURE & MODULE CARDS
   ============================================ */
.architecture-card,
.use-cases-card,
.generation-card,
.service-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 2.5rem;
    margin-top: 3rem;
}

.light-section .architecture-card,
.light-section .use-cases-card,
.light-section .generation-card,
.light-section .service-card {
    background: white;
    border-color: rgba(0, 0, 0, 0.1);
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
}

.architecture-card h3,
.use-cases-card h3,
.generation-card h3,
.service-card h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dark-section  .architecture-card h3,
.dark-section  .use-cases-card h3,
.dark-section  .generation-card h3,
.dark-section  .service-card h3 { color: white; }

.light-section .architecture-card h3,
.light-section .use-cases-card h3,
.light-section .generation-card h3,
.light-section .service-card h3 { color: var(--text-dark); }

.architecture-card h3 svg.bi,
.generation-card h3 svg.bi { width: 1.8rem; height: 1.8rem; color: var(--primary); }

/* Module / Generated Box */
.module-box,
.generated-box {
    background: rgba(255, 98, 0, 0.05);
    border: 1px solid rgba(255, 98, 0, 0.2);
    border-radius: 10px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.light-section .module-box,
.light-section .generated-box { background: rgba(255, 98, 0, 0.03); }

.module-box:hover,
.generated-box:hover { transform: translateY(-3px); border-color: var(--primary); background: rgba(255, 98, 0, 0.1); }

.module-box h4,
.generated-box h4 { font-size: 1.2rem; font-weight: 700; margin-bottom: 0.75rem; }

.dark-section  .module-box h4,
.dark-section  .generated-box h4 { color: white; }
.light-section .module-box h4,
.light-section .generated-box h4 { color: var(--text-dark); }

.generated-box svg.bi {
    width: 2.5rem;
    height: 2.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.module-box p,
.generated-box p { font-size: 0.95rem; opacity: 0.85; margin: 0; }

/* Use Case List */
.use-case-list { list-style: none; padding: 0; }

.use-case-list li {
    padding: 0.75rem 0;
    display: flex;
    align-items: start;
    gap: 0.75rem;
    font-size: 1rem;
}

.use-case-list li svg.bi {
    width: 1.2rem;
    height: 1.2rem;
    color: var(--primary);
    flex-shrink: 0;
    margin-top: 0.2rem;
}

/* Service List */
.service-list { list-style: none; padding: 0; }
.service-list li { padding: 0.5rem 0; padding-left: 1.5rem; position: relative; font-size: 1rem; }
.service-list li::before { content: "▸"; position: absolute; left: 0; color: var(--primary); font-weight: bold; }

.service-card .lead { font-size: 1.2rem; margin-bottom: 2rem; }

.service-card h4 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dark-section  .service-card h4 { color: white; }
.light-section .service-card h4 { color: var(--text-dark); }

.service-card h4 svg.bi { width: 1.3rem; height: 1.3rem; color: var(--primary); }

/* ============================================
   COMPARISON TABLE
   ============================================ */
.comparison-table-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 2.5rem;
    margin-top: 3rem;
}

.comparison-table-card h3 { font-size: 1.8rem; font-weight: 700; margin-bottom: 2rem; color: white; }

.comparison-table { width: 100%; border-collapse: collapse; }
.comparison-table thead { background: rgba(255, 98, 0, 0.1); }
.comparison-table th { padding: 1rem; text-align: left; font-weight: 700; font-size: 1rem; border-bottom: 2px solid rgba(255, 98, 0, 0.3); color: white; }
.comparison-table td { padding: 1rem; border-bottom: 1px solid rgba(255, 255, 255, 0.1); font-size: 0.95rem; }
.comparison-table td:first-child { font-weight: 600; }
.comparison-table .bad  { color: var(--danger);    font-weight: 600; }
.comparison-table .good { color: var(--secondary); font-weight: 600; }

/* Refinement Badge */
.refinement-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: linear-gradient(135deg, var(--primary) 0%, #ff7a1f 100%);
    color: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1rem;
    margin: 1rem 0;
}

.refinement-badge svg.bi { width: 1.5rem; height: 1.5rem; }

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section { background: linear-gradient(135deg, var(--primary) 0%, #ff7a1f 100%); color: white; padding: 5rem 0; }

.cta-title    { font-size: clamp(2rem, 5vw, 3rem); font-weight: 800; margin-bottom: 1rem; }
.cta-subtitle { font-size: 1.3rem; margin-bottom: 3rem; opacity: 0.95; }

.cta-buttons { display: flex; gap: 2rem; justify-content: center; flex-wrap: wrap; margin-bottom: 2rem; }

.btn-contact,
.btn-portfolio {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 3rem;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 3px solid white;
}

.btn-contact svg.bi,
.btn-portfolio svg.bi { width: 1.2rem; height: 1.2rem; }

.btn-contact { background: white; color: var(--primary); }
.btn-contact:hover { background: transparent; color: white; transform: translateY(-3px); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2); }

.btn-portfolio { background: transparent; color: white; }
.btn-portfolio:hover { background: white; color: var(--primary); transform: translateY(-3px); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2); }

.cta-note { font-size: 1.1rem; opacity: 0.9; }
.cta-note a { color: white; text-decoration: underline; font-weight: 600; }
.cta-note a:hover { opacity: 0.8; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .hero-section { padding: 5rem 0 3rem; }
    .project-section { padding: 3rem 0; }
    .project-number { font-size: 5rem; top: -2rem; }
    .metrics-card, .case-study-card, .architecture-card,
    .use-cases-card, .generation-card, .service-card,
    .comparison-table-card { padding: 1.5rem; }
    .metric-value { font-size: 2.5rem; }
    .cta-buttons { flex-direction: column; align-items: stretch; }
    .btn-contact, .btn-portfolio { width: 100%; justify-content: center; }
    .comparison-table { font-size: 0.85rem; }
    .comparison-table th, .comparison-table td { padding: 0.75rem 0.5rem; }
}

@media (max-width: 480px) {
    .hero-section .hero-badge { font-size: 0.75rem; padding: 0.4rem 1rem; }
    .feature-list li { font-size: 0.95rem; }
    .tech-badge { font-size: 0.75rem; padding: 0.4rem 0.75rem; }
    .module-box, .generated-box { padding: 1rem; }
    .refinement-badge { font-size: 0.9rem; padding: 0.75rem 1.5rem; }
}