:root {
    --primary: #FFC107;
    --primary-hover: #E0A800;
    --dark: #212121;
    --light: #FDFBF7;
    --white: #ffffff;
    --text-muted: #666666;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--light);
    color: var(--dark);
    line-height: 1.6;
}

/* Header & Navigation */
header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    padding: 1.5rem 10%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--dark);
    text-decoration: none;
}

.logo span {
    color: var(--primary);
}

/* Hero Section */
.hero {
    padding: 5rem 10%;
    text-align: center;
    background: linear-gradient(135deg, #fff 60%, rgba(255, 193, 7, 0.1) 100%);
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--dark);
}

/* Universal Content Grid (Adapts to Travel, E-com, or Service cards) */
.main-container {
    padding: 4rem 10%;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    background: var(--white);
    border-radius: 12px;
    padding: 2rem;
    border-bottom: 4px solid var(--primary);
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

/* Buttons */
.btn-primary {
    background-color: var(--primary);
    color: var(--dark);
    border: none;
    padding: 0.8rem 1.8rem;
    font-weight: 600;
    border-radius: 30px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: background 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

/* Seamless Checkout Modal CSS */
.checkout-modal {
    display: none; 
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-color: rgba(0,0,0,0.6);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: var(--white);
    width: 90%;
    max-width: 500px;
    height: 650px;
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    animation: slideUp 0.4s ease;
}

@keyframes slideUp {
    from { transform: translateY(50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    background-color: var(--dark);
    color: var(--white);
    padding: 1.2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 span {
    color: var(--primary);
}

.close-btn {
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    background: none;
    border: none;
}

.payment-iframe {
    width: 100%;
    height: calc(100% - 60px);
    border: none;
}