* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", "Helvetica Neue", sans-serif;
    background-color: #f4f9fc;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 960px;
    margin: 40px auto;
    padding: 0 16px;

    @media screen and (max-width: 768px) {
        padding: 0 6px;
    }
}

.card {
    background: #ffffff;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    margin-bottom: 20px;
    text-align: center;
}

.card h3 {
    color: #0077cc;
    margin-bottom: 10px;
    font-size: 1.5rem;
}

.triangle-down {
    width: 0;
    height: 0;
    margin: 0 auto 20px;
    border-left: 20px solid transparent;
    border-right: 20px solid transparent;
    border-top: 20px solid #0077cc;
}

section {
    padding: 25px 20px;
    background: #ffffff;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    margin-bottom: 40px;

    @media screen and (max-width: 768px) {
        padding: 15px 10px;
    }
}

h2 {
    font-size: 2rem;
    color: #0077cc;
    border-left: 6px solid #0077cc;
    padding-left: 15px;
    margin-bottom: 20px;

    @media screen and (max-width: 768px) {
        font-size: 1.5rem;
    }
}

h3 {
    font-size: 1.25rem;
    color: #005fa3;
    margin-top: 20px;
    margin-bottom: 10px;

    @media screen and (max-width: 768px) {
        font-size: 1.0rem;
    }
}

p {
    font-size: 1rem;
    margin-bottom: 15px;

    @media screen and (max-width: 768px) {
        font-size: 0.9rem;
    }
}

.name {
    font-size: 1rem;

    @media screen and (max-width: 768px) {
        font-size: 0.9rem;
    }
}

#list {
    & .table-wrapper {
        overflow-x: auto;

        @media screen and (max-width: 768px) {
            overflow-x: visible;
            max-width: none;
        }

        & table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 15px;
            background-color: #f0f8ff;
            min-width: 400px;

            @media screen and (max-width: 768px) {
                min-width: auto;
            }

            & tbody tr {
                @media screen and (max-width: 768px) {
                    display: block;
                }

                & th {
                    border: 1px solid #b3d7f0;
                    font-size: 1rem;

                    @media screen and (max-width: 768px) {
                        display: block;
                        text-align: left;
                        padding: 0 0 0 5px;
                        font-size: 0.9rem;
                    }
                }

                & td {
                    border: 1px solid #b3d7f0;
                    padding: 12px;
                    text-align: left;
                    font-size: 1rem;

                    @media screen and (max-width: 768px) {
                        display: block;
                        background-color: #fff;
                        border: none;
                        font-size: 0.9rem;
                    }

                    & a {
                        color: #0077cc;
                        text-decoration: none;
                        font-weight: bold;
                    }

                    & a:hover {
                        text-decoration: underline;
                        color: #005fa3;
                    }
                }
            }
        }
    }
}


#flow {
    & .table-wrapper {
        overflow-x: auto;
        max-width: 600px;
        margin: 0 auto;

        @media screen and (max-width: 768px) {
            overflow-x: visible;
            max-width: none;
        }

        & table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 15px;
            background-color: #f0f8ff;
            min-width: 400px;

            @media screen and (max-width: 768px) {
                min-width: auto;
            }

            & tbody tr {
                & th {
                    padding: 12px 0 12px 12px;
                    vertical-align: top;
                    text-align: left;
                    font-size: 1rem;

                    @media screen and (max-width: 768px) {
                        font-size: 0.9rem;
                    }
                }

                & td {

                    padding: 12px;
                    text-align: left;
                    font-size: 1rem;

                    @media screen and (max-width: 768px) {
                        font-size: 0.9rem;
                    }

                    & a {
                        color: #0077cc;
                        text-decoration: none;
                        font-weight: bold;
                    }

                    & a:hover {
                        text-decoration: underline;
                        color: #005fa3;
                    }
                }

                & td.arrow {
                    text-align: center;
                }
            }
        }
    }
}

/* 飾り枠 (fancy box) */
.fancy-box {
    border-left: 5px solid #0077cc;
    border-right: 5px solid #0077cc;
    background-color: #eaf4fc;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
}

.addrss-box {
    width: 80%;
    margin: 0 auto;
    text-align: center;
}

@media (max-width: 768px) {
    .card h3 {
        font-size: 1.3rem;
    }

    h2 {
        font-size: 1.6rem;
    }

    h3 {
        font-size: 1.1rem;
    }

    td {
        font-size: 0.95rem;
    }

    .card {
        padding: 16px;
    }

    section {
        padding: 30px 16px;
    }
}

@media (max-width: 480px) {
    h2 {
        font-size: 1.4rem;
    }

    .card h3 {
        font-size: 1.1rem;
    }

    td {
        font-size: 0.9rem;
    }
}

.userLabel{
	font-size: 1.1rem;
}

@media (max-width: 768px) {
	.userLabel{
		font-size: 1.1rem;
	}
}

.videolist{
    padding: 1.5rem 0;
    text-align: center;
}

.link-button {
  display: inline-block;
  padding: 10px 24px;
  background-color: #1a73e8; /* Googleのような鮮やかな青 */
  color: #ffffff;
  text-decoration: none;
  border-radius: 6px;
  font-weight: bold;
  box-shadow: 0 2px 4px rgba(26, 115, 232, 0.2);
  transition: all 0.3s ease;
}

.link-button:hover {
  background-color: #1557b0;
  box-shadow: 0 4px 8px rgba(26, 115, 232, 0.3);
  transform: translateY(-1px);
}