:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --accent-color: #38bdf8;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}

header {
    padding: 80px 20px 40px;
    text-align: center;
    width: 100%;
}

.logo-img {
    max-width: 350px;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 0 12px rgba(56, 189, 248, 0.2));
}

.container {
    max-width: 600px;
    width: 85%;
    margin-bottom: 60px;
}

.intro-text {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 1rem;
    margin: 20px 0 40px 0;
    font-weight: 300;
}

.link-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-top: 20px;
}

.link-item {
    background-color: var(--card-bg);
    padding: 22px 35px;
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.link-item:hover {
    border-color: var(--accent-color);
    background-color: #24334d;
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
}

.link-item::after {
    content: '→';
    color: var(--accent-color);
    font-size: 1.4rem;
    opacity: 0.6;
    transition: transform 0.2s ease;
}

.link-item:hover::after {
    transform: translateX(5px);
    opacity: 1;
}

footer {
    margin-top: auto;
    padding: 40px;
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-align: center;
    letter-spacing: 0.5px;
    opacity: 0.7;
}