/* 基本スタイル */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

header {
    background-color: #fff;
    padding: 1rem 2rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 1.5rem;
    color: #333;
}

#auth-status {
    display: flex;
    align-items: center;
    gap: 1rem;
}

button {
    padding: 0.5rem 1rem;
    background-color: #4285f4;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
}

button:hover {
    background-color: #357ae8;
}

button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

#video-player {
    margin-top: 2rem;
}

#video {
    width: 100%;
    max-width: 800px;
    height: auto;
}

#packages-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.package-card {
    background-color: #fff;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.package-card h3 {
    margin-bottom: 0.5rem;
}

.package-card p {
    color: #666;
    margin-bottom: 1rem;
}

#error-message {
    background-color: #fee;
    color: #c33;
    padding: 1rem;
    border-radius: 4px;
    margin-top: 1rem;
}

#watch-status {
    margin-top: 1rem;
    padding: 1rem;
    background-color: #e8f5e9;
    border-radius: 4px;
}

.success-message {
    background-color: #e8f5e9;
    padding: 1rem;
    border-radius: 4px;
    border-left: 4px solid #4caf50;
}

.success-message h3 {
    color: #2e7d32;
    margin-bottom: 0.5rem;
}

.error-message {
    background-color: #ffebee;
    padding: 1rem;
    border-radius: 4px;
    border-left: 4px solid #f44336;
    color: #c62828;
}

.info-text {
    color: #666;
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.primary-btn {
    background-color: #4285f4;
    color: white;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    margin-top: 1rem;
}

.primary-btn:hover {
    background-color: #357ae8;
}

#video-player {
    margin-top: 2rem;
    background-color: #000;
    border-radius: 8px;
    overflow: hidden;
}

#video {
    width: 100%;
    max-width: 100%;
    height: auto;
    display: block;
}

.loading {
    text-align: center;
    padding: 2rem;
    color: #666;
}

.loading::after {
    content: "...";
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { content: "."; }
    40% { content: ".."; }
    60%, 100% { content: "..."; }
}