.login { margin-top: 22px; font-size: .9rem; }
.login p { margin: 10px 0 0; color: #64748b; }
.line-login-button { display: block !important; width: 70px !important; margin: 0 auto !important; padding: 0; background: transparent; border-radius: 0; }
.line-login-button:hover { background: transparent; }
.line-login-button img { display: block; width: 70px; height: 20px; }
.line-login-button:hover img { content: url('/images/line/btn_login_hover.png'); }
.line-login-button:active img { content: url('/images/line/btn_login_press.png'); }
.study-times { display: grid; gap: 14px; margin: 0 0 22px; }
.study-divider { margin: 22px 0 0; border: 0; border-top: 1px solid #e5e9f0; }
.study-tile-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.study-tile { display: grid; gap: 4px; padding: 10px 8px; border: 1px solid transparent; border-radius: 10px; background: #f8fafc; }
.study-tile:nth-child(1) { border-color: #bbf7d0; background: #f0fdf4; }
.study-tile:nth-child(2) { border-color: #fde68a; background: #fffbeb; }
.study-tile:nth-child(3) { border-color: #bfdbfe; background: #eff6ff; }
.study-tile h3 { margin: 0; color: #64748b; font-size: .75rem; font-weight: 700; }
.study-tile strong { font-size: 1.3rem; }
.study-tile small { color: #64748b; font-size: .72rem; }
.study-times a { margin-top: 6px; }
.study-history-link { display: inline-block; margin-top: 14px; }
.profile-info { min-width: 0; }
.profile-stats { display: flex; gap: 10px; margin-top: 3px; color: #64748b; font-size: .82rem; font-weight: 600; }