:root {
    --bg-dark: #0f172a;
    --card-bg: #1e293b;
    --accent-blue: #3b82f6;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
    --border: #334155;
}

body.xxxWEB {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
}

.main-container {
    max-width: 900px;
    width: 100%;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 40px;
}

.titolo1 {
    font-size: 3rem;
    font-weight: 800;
    margin: 0;
    letter-spacing: -1px;
    background: linear-gradient(to right, #60a5fa, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-dim);
    margin-top: 5px;
}

/* Cards Generiche */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    transition: all 0.3s ease;
}

/* Main Download Card */
.main-download {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(145deg, #1e293b, #1e293b, #1e40af);
    margin-bottom: 20px;
}

.main-download:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
}

.download-info {
    display: flex;
    align-items: center;
    gap: 20px;
}

.imgAircalc {
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.version-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--accent-blue);
}

.link1text {
    font-size: 1.5rem;
    font-weight: 600;
    text-decoration: none;
    color: white;
    cursor: pointer;
}

/* Grid pulsanti */
.action-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 15px;
    margin-bottom: 40px;
}

.mini-card {
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-align: center;
}

.mini-card:hover {
    background: #334155;
}

.card-icon {
    font-size: 1.5rem;
}

.card-text {
    font-size: 0.9rem;
    color: var(--text-main);
    font-weight: 500;
}

/* Steps Section */
.steps-container {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
}

.step-item {
    flex: 1;
    position: relative;
}

.step-num {
    display: block;
    font-size: 0.8rem;
    color: var(--accent-blue);
    font-weight: 800;
    margin-bottom: 5px;
}

.btn-step {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 10px;
    background: var(--border);
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-step:hover {
    filter: brightness(1.2);
    transform: translateY(-2px);
}

.btn-step.success {
    background: var(--accent-success);
}

.btn-step.warning {
    background: var(--accent-warning);
}

/* Video */
.textVideo {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--accent-blue);
}

.video-wrapper {
    background: #000;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.video {
    width: 100%;
    display: block;
}

/* Footer */
.footer {
    text-align: center;
    margin-top: 50px;
    padding-bottom: 50px;
}

.error-box {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--accent-warning);
    padding: 15px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.link4text {
    color: var(--accent-warning);
    text-decoration: none;
    font-weight: 600;
}

.contact-text {
    color: var(--text-dim);
    font-size: 0.9rem;
}

.contact-text a {
    color: var(--accent-blue);
    text-decoration: none;
}

/* Animazioni */
.pulse-icon {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.7;
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@media (max-width: 768px) {

    .action-grid,
    .steps-container {
        grid-template-columns: 1fr;
        flex-direction: column;
    }

    .main-download {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
}