.btn {
    padding: 12px 25px;
    border-radius: 5px;
    cursor: pointer;
    transition: 0.3s;
}

.btn-primary {
    background: white;
    color: var(--primary-color);
    background-color: #209bd8;
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-outline {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.service-card,
.project-card,
.team-card,
.pricing-card {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: 0.3s;
}

.service-card:hover,
.project-card:hover,
.team-card:hover,
.pricing-card:hover {
    transform: translateY(-5px);
}


/* Theme switcher button */
.theme-switcher {
    position: relative;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: var(--card-bg, #f5f5f5);
    color: var(--text-color, #333);
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.btn-icon:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.btn-icon:active {
    transform: translateY(0);
}

/* Tooltip for better UX */
.btn-icon::after {
    content: attr(aria-label);
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.btn-icon:hover::after {
    opacity: 1;
}

nav ul li a {
  position: relative;
  color: var(--text-color);
  transition: color 0.3s ease;
}

nav ul li a:hover,
nav ul li a.active {
  color: var(--primary-color);
}

/* Underline effect */
nav ul li a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0%;
  height: 2px;
  background: var(--primary-color);
  transition: width 0.3s ease;
}

nav ul li a:hover::after,
nav ul li a.active::after {
  width: 100%;
}