:root {
    --color-turquoise: #20B2AA; /* Light Sea Green / Dark Turquoise */
    --color-lightblue: #E0F7FA;
    --color-yellow: #FFC107;
    --color-navy: #1A237E;
    --color-white: #FFFFFF;
}

body {
    font-family: 'Inter', sans-serif;
    color: #333;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    color: var(--color-navy);
}

.bg-turquoise { background-color: var(--color-turquoise); }
.bg-lightblue { background-color: var(--color-lightblue); }
.bg-yellow { background-color: var(--color-yellow); }
.bg-navy { background-color: var(--color-navy); }

.text-turquoise { color: var(--color-turquoise); }
.text-navy { color: var(--color-navy); }

.btn-primary {
    background-color: var(--color-yellow);
    color: var(--color-navy);
    font-weight: bold;
    transition: all 0.3s;
}
.btn-primary:hover {
    background-color: #FFD54F;
    transform: translateY(-2px);
}

.tour-card {
    transition: transform 0.3s, box-shadow 0.3s;
    border-radius: 12px;
    overflow: hidden;
}
.tour-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.hero-slider .slide-content {
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
}

.transparent-header {
    background: transparent;
    transition: background 0.3s;
}
.transparent-header.scrolled {
    background: var(--color-navy);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}