/* ============================================
   Tools Commerciali - Pagina panoramica
   Tema ambra/dorato (commerciale)
   ============================================ */

:root {
    --color-bg: #14120f;
    --color-bg-card: #1e1a16;
    --color-surface: #2a2520;
    
    --color-primary: #f59e0b;
    --color-primary-dim: #d97706;
    --color-accent: #fbbf24;
    
    --color-text: #f5f0e8;
    --color-text-muted: #a8a090;
    --color-text-dim: #787068;
    
    --color-border: #3d3630;
    --color-border-focus: #f59e0b;
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
    
    --font-sans: 'Outfit', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    --transition: 0.2s ease;
}

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

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

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(245, 158, 11, 0.08), transparent),
        radial-gradient(ellipse 60% 40% at 100% 100%, rgba(251, 191, 36, 0.05), transparent);
    pointer-events: none;
    z-index: 0;
}

.app-container {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    margin-bottom: 2.5rem;
    text-align: center;
}

.nav-links {
    margin-bottom: 1rem;
}

.nav-links a {
    font-size: 0.9rem;
    color: var(--color-primary);
    text-decoration: none;
    transition: opacity var(--transition);
}

.nav-links a:hover {
    opacity: 0.8;
}

.back-link {
    display: inline-block;
    font-size: 0.9rem;
    color: var(--color-primary);
    text-decoration: none;
    margin-bottom: 1rem;
    transition: opacity var(--transition);
}

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

.header-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    color: var(--color-primary);
}

.logo h1 {
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 0.95rem;
    color: var(--color-text-muted);
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.intro-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

.intro-card h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    color: var(--color-text);
}

.intro-card p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.75;
    margin-bottom: 1rem;
}

.intro-card p:last-child {
    margin-bottom: 0;
}

.intro-card strong {
    color: var(--color-primary);
}

.tools-section h2 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--color-text);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.25rem;
}

.tool-card {
    display: block;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    text-decoration: none;
    color: inherit;
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.tool-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.15);
    transform: translateY(-2px);
}

.tool-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

.tool-card p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.5;
    margin: 0;
}

.footer {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
    text-align: center;
    font-size: 0.8rem;
    color: var(--color-text-dim);
}

@media (max-width: 640px) {
    .app-container { padding: 1.5rem 1rem; }
    .logo h1 { font-size: 1.4rem; }
    .intro-card { padding: 1.5rem; }
    .tools-grid { grid-template-columns: 1fr; }
}

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

@media print {
    body::before { display: none; }
    .tool-card:hover { transform: none; }
}