/* Reset e variabili */
:root {
    --bg-primary: #f5f5f5;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e8e8e8;
    --text-primary: #2c2c2c;
    --text-secondary: #5a5a5a;
    --text-muted: #888888;
    --accent-green: rgb(80, 173, 84);
    --accent-green-hover: rgb(95, 195, 100);
    --accent-green-light: rgba(80, 173, 84, 0.1);
    --error-red: #d32f2f;
    --warning-orange: #f57c00;
    --border-color: #d0d0d0;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Container principale */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
header {
    text-align: center;
    padding: 2rem 1rem;
    background: linear-gradient(135deg, var(--accent-green-light), var(--bg-secondary));
    border-bottom: 3px solid var(--accent-green);
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px var(--shadow);
}

header h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--accent-green);
    font-weight: 700;
}

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

/* Main content */
main {
    flex: 1;
}

/* Controls section */
.controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1.25rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 2rem;
    box-shadow: 0 2px 6px var(--shadow);
}

.cycle-selector {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cycle-selector label {
    font-weight: 600;
    color: var(--text-secondary);
}

#cycle-dropdown {
    padding: 0.5rem 1rem;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
}

#cycle-dropdown:hover {
    border-color: var(--accent-green);
    box-shadow: 0 0 0 3px var(--accent-green-light);
}

#cycle-dropdown:focus {
    outline: none;
    border-color: var(--accent-green);
    box-shadow: 0 0 0 3px var(--accent-green-light);
}

.status {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--text-muted);
    transition: background-color 0.3s;
}

.status-indicator.online {
    background-color: var(--accent-green);
    box-shadow: 0 0 8px var(--accent-green);
}

.status-indicator.offline {
    background-color: var(--error-red);
}

/* Image display section */
.image-display {
    margin-bottom: 3rem;
}

.image-container {
    position: relative;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px var(--shadow);
}

#latest-image {
    width: 100%;
    height: auto;
    display: none;
}

#latest-image.visible {
    display: block;
}

.placeholder,
.loading,
.error-message {
    display: none;
    text-align: center;
    padding: 4rem 2rem;
}

.placeholder.visible,
.loading.visible,
.error-message.visible {
    display: block;
}

.placeholder p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.placeholder-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.loading .spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--accent-green);
    border-radius: 50%;
    margin: 0 auto 1rem;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading p {
    color: var(--text-secondary);
}

.error-message {
    color: var(--error-red);
    font-size: 1rem;
}

.image-info {
    text-align: center;
    padding: 1rem;
    background-color: var(--accent-green-light);
    border-top: 1px solid var(--border-color);
    margin-top: -1px;
    border-radius: 0 0 12px 12px;
}

#image-timestamp {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-family: 'Courier New', monospace;
}

/* Cycles info section */
.cycles-info {
    margin-bottom: 3rem;
}

.cycles-info h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.cycles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.cycle-card {
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.2s;
    box-shadow: 0 2px 4px var(--shadow);
}

.cycle-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-green);
    box-shadow: 0 6px 12px var(--shadow-hover);
}

.cycle-card h3 {
    color: var(--accent-green);
    margin-bottom: 0.75rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.cycle-stats {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
}

.stat-label {
    color: var(--text-secondary);
}

.stat-value {
    color: var(--text-primary);
    font-weight: 600;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 1rem;
    border-top: 1px solid var(--border-color);
    margin-top: 2rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-links {
    margin-top: 0.5rem;
}

.footer-links a {
    color: var(--accent-green);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--accent-green-hover);
}

.footer-links span {
    margin: 0 0.5rem;
    color: var(--text-muted);
}

/* Responsive design */
@media (max-width: 768px) {
    header h1 {
        font-size: 1.5rem;
    }

    .subtitle {
        font-size: 0.85rem;
    }

    .controls {
        flex-direction: column;
        align-items: stretch;
    }

    .cycle-selector {
        flex-direction: column;
        align-items: stretch;
    }

    #cycle-dropdown {
        width: 100%;
    }

    .status {
        justify-content: center;
    }

    .cycles-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0.5rem;
    }

    header {
        padding: 1rem 0.5rem;
    }

    header h1 {
        font-size: 1.25rem;
    }

    .placeholder,
    .loading {
        padding: 2rem 1rem;
    }
}