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

/* BODY (ANIMATED GRADIENT) */
body {
    font-family: 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #0f2027, #2c5364, #00b09b);
    background-size: 300% 300%;
    animation: gradientMove 10s ease infinite;
    height: 100vh;
}

/* BACKGROUND ANIMATION */
@keyframes gradientMove {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* APP */
.app {
    max-width: 380px;
    height: 100vh;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* CARD (GLASS EFFECT) */
.card {
    width: 100%;
    border-radius: 24px;
    padding: 28px 20px;

    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(12px);

    box-shadow: 0 20px 60px rgba(0,0,0,0.4);

    animation: fadeIn 0.6s ease;
}

/* TITLE */
.main-title {
    font-size: 15px;
    text-align: center;
    line-height: 1.6;
    margin-bottom: 22px;
    font-weight: bold;
    color: #0f2027;
}

/* USER INFO (NEW) */
.user-info {
    text-align: center;
    margin-bottom: 15px;
    font-size: 13px;
    color: #333;
}

/* NAME INPUT */
.name-box {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.name-box input {
    padding: 12px;
    border-radius: 12px;
    border: none;
    font-size: 15px;
    outline: none;
    background: #f1f1f1;
}

.name-box button {
    padding: 12px;
    border: none;
    background: linear-gradient(135deg, #0072ff, #00c6ff);
    color: white;
    border-radius: 12px;
    font-weight: bold;
    transition: 0.3s;
}

.name-box button:hover {
    transform: scale(1.05);
}

/* MENU */
.menu {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

/* BUTTON (PREMIUM STYLE) */
.menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;

    padding: 16px;
    border-radius: 18px;
    text-decoration: none;

    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.3px;

    background: linear-gradient(135deg, #00b09b, #0072ff);
    color: white;

    transition: all 0.25s ease;

    box-shadow: 0 8px 20px rgba(0,114,255,0.3);
}

/* ICON ANIMATION */
.menu-btn span {
    transition: transform 0.3s;
}

/* HOVER */
.menu-btn:hover {
    transform: translateY(-3px) scale(1.04);
    box-shadow: 0 12px 30px rgba(0,114,255,0.5);
}

/* ICON MOVE */
.menu-btn:hover span {
    transform: translateX(4px);
}

/* ACTIVE CLICK */
.menu-btn:active {
    transform: scale(0.97);
}

/* FADE ANIMATION */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(25px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* MOBILE */
@media (max-width: 400px) {
    .card {
        padding: 24px 16px;
    }

    .menu-btn {
        font-size: 13px;
        padding: 14px;
    }
}