/* style.css */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background-color: #f1f5f9; /* Soft background tint */
    min-height: 100vh;
}

/* App Core Layout Structure */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Menu Panel */
.sidebar-menu {
    width: 260px;
    background-color: #1e293b; /* Dark structural charcoal */
    padding: 24px;
    display: flex;
    flex-direction: column;
}

.menu-logo {
    color: #ffffff;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 40px;
    letter-spacing: 0.5px;
}

.menu-links {
    list-style: none;
}

.menu-links li {
    margin-bottom: 12px;
}

.menu-links a {
    color: #94a3b8;
    text-decoration: none;
    font-weight: 500;
    padding: 10px 16px;
    display: block;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.menu-links li.active-link a, .menu-links a:hover {
    color: #ffffff;
    background-color: #334155;
}

/* Main Dashboard Panel */
.main-content {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
}

/* Centralized Interactive Card */
.dashboard-card {
    background-color: #ffffff;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
    text-align: center;
    width: 100%;
    max-width: 400px;
}

#counter-display {
    color: #0f172a;
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 6px;
}

.card-subtitle {
    color: #64748b;
    font-size: 0.95rem;
    margin-bottom: 32px;
}

/* Action Group */
.action-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
}

/* Buttons Upgrade */
button {
    padding: 12px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

#my-btn {
    background-color: deepskyblue;
    color: white;
    box-shadow: 0 4px 12px rgba(0, 191, 255, 0.25);
}

#my-btn:hover {
    background-color: #00b0f0;
    transform: translateY(-2px);
}

.secondary-btn {
    background-color: #f1f5f9;
    color: #475569;
}

.secondary-btn:hover {
    background-color: #e2e8f0;
    color: #1e293b;
    transform: translateY(-2px);
}

button:active {
    transform: translateY(0);
}