:root {
    --primary-color: #004d40;
    /* Anamai Deep Teal/Green */
    --primary-hover: #00352c;
    --bg-gradient-start: #f1f8e9;
    /* Light Greenish White */
    --bg-gradient-end: #e8f5e9;
    --text-main: #1f2937;
    --text-sub: #4b5563;
    --card-bg: rgba(255, 255, 255, 0.95);
    --shadow-color: rgba(0, 77, 64, 0.1);
}

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

body {
    font-family: 'Kanit', sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-main);
    overflow: hidden;
    position: relative;
}

/* Abstract background shapes */
.background-mesh {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    overflow: hidden;
}

.background-mesh::before,
.background-mesh::after {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
}

.background-mesh::before {
    background: #b9f6ca;
    /* Light Green */
    top: -100px;
    left: -100px;
    animation: float 10s ease-in-out infinite alternate;
}

.background-mesh::after {
    background: #69f0ae;
    /* Accent Green */
    bottom: -100px;
    right: -100px;
    animation: float 12s ease-in-out infinite alternate-reverse;
}

@keyframes float {
    0% {
        transform: translate(0, 0);
    }

    100% {
        transform: translate(30px, 50px);
    }
}

.container {
    padding: 20px;
    width: 100%;
    max-width: 600px;
    z-index: 1;
}

.card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 48px 32px;
    box-shadow:
        0 4px 6px -1px var(--shadow-color),
        0 10px 15px -3px var(--shadow-color),
        0 0 0 1px rgba(255, 255, 255, 0.5) inset;
    text-align: center;
    position: relative;
    overflow: hidden;
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card::top-border {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, #004d40, #1b5e20);
    /* Deep Green to Forest Green */
}

.icon-wrapper {
    margin-bottom: 24px;
    display: inline-flex;
    padding: 16px;
    background: #e0f2f1;
    /* Light Teal */
    border-radius: 50%;
    color: #00695c;
    /* Teal */
}

h1 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 24px;
    color: #111827;
}

.highlight-text {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 24px;
    color: var(--text-main);
}

.system-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.system-link:hover {
    color: var(--primary-hover);
    border-bottom-color: var(--primary-hover);
}

.divider {
    height: 1px;
    background: #e5e7eb;
    margin: 24px 0;
    width: 100%;
}

.sub-text {
    font-size: 0.95rem;
    color: var(--text-sub);
    line-height: 1.6;
    margin-bottom: 32px;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    padding: 12px 32px;
    border-radius: 50px;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.2s;
    box-shadow: 0 4px 6px -1px rgba(0, 77, 64, 0.2);
}

.cta-button:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 8px -1px rgba(0, 77, 64, 0.3);
}

.cta-button:active {
    transform: translateY(0);
}

@media (max-width: 480px) {
    .card {
        padding: 32px 20px;
    }

    h1 {
        font-size: 1.5rem;
    }

    .highlight-text {
        font-size: 1rem;
    }
}